JP6855195B2 - Broadcast reception system - Google Patents

Description

The present invention relates to a broadcast receiving system.

One of the extended functions of the digital broadcasting service is data broadcasting, which transmits digital data by broadcasting waves and displays various information such as weather forecasts, news, and recommended programs. Many television receivers capable of receiving data broadcasting are already on the market, and many technologies related to data broadcasting reception have been published including the following Patent Document 1.

Japanese Unexamined Patent Publication No. 2001-186486

In response to recent changes in the environment related to content distribution, TV receivers are also required to expand various functions. In particular, there are many demands for distribution of contents and linked applications using a broadband network environment such as the Internet, and demands for high resolution / high definition of video contents. But ..

An object of the present invention is to provide a broadcast receiving device capable of performing a higher value-added function.

As a means for solving the above-mentioned problems, the technique described in the claims is used.

For example, a broadcast receiving device capable of receiving both MPEG2 transmission method broadcast data and MMT transmission method broadcast data, and a remote controller capable of transmitting control information to the broadcast receiving device and operating the same. In the broadcast receiving system including the broadcast receiving device, the broadcast receiving device communicates with a first receiving unit that receives broadcast data of the MPEG2 transmission method, a second receiving unit that receives broadcast data of the MMT transmission method, and network communication. The network communication unit capable of decoding, the broadcast data received by the first receiving unit, the first decoding unit that decodes the data received by the network communication unit, the broadcasting data received by the second receiving unit, and A second decoding unit that decodes the data received by the network communication unit, and a video output unit that outputs an image generated based on the data decoded by the first decoding unit or the second decoding unit. An operation input unit that receives control information from the remote controller, and the first receiving unit, the first decoding unit, the second receiving unit, and the second receiving unit based on the control information received by the operation input unit. The network communication unit includes a decoding unit of 2 and a control unit for controlling the video output unit, and the network communication unit receives hybrid cast data linked with the broadcast data of the MPEG2 transmission method received by the first receiving unit. The second decoding unit can receive data from the external network, and the second decoding unit transmits data of a multimedia service linked with the broadcast data of the MMT transmission method via either the second receiving unit or the network communication unit. In the control state by the control unit, the display screen for the hybrid cast data decoded by the first decoding unit is displayed or hidden in the output video output from the video output unit. The display screen of the data broadcasting service of the MPEG2 transmission method to be decoded by the first decoding unit is displayed or not displayed in the first control for switching the control and the output video output from the video output unit. In the second control that controls to switch between the above and the output video output from the video output unit, the display screen of the multimedia service of the MMT transmission method to be decoded by the second decoding unit is displayed or not. There is a third control that controls switching between display and display, and the remote controller has a button for outputting control information for the first control. And the button for outputting the control information for the second control and the button for outputting the control information for the third control are configured as the same button for broadcasting reception. Use the system.

By using the technique of the present invention, it is possible to provide a broadcast receiving device capable of executing a function having higher added value.

It is a block diagram of the broadcasting communication system including the broadcasting receiving apparatus which concerns on Example 1. FIG. It is explanatory drawing of the component of the coded signal in MMT. It is a block diagram of MPU in MMT. It is a block diagram of the MMTP packet in MMT. It is a conceptual diagram of the protocol stack of the broadcasting system using MMT. It is a hierarchical block diagram of control information used in a broadcasting system. It is a list of tables used in TLV-SI of a broadcasting system. It is a list of descriptors used in TLV-SI of a broadcasting system. It is a list of messages used in MMT-SI of a broadcasting system. It is a list of tables used in MMT-SI of a broadcasting system. It is a list (1) of a descriptor used in MMT-SI of a broadcasting system. It is a list (2) of a descriptor used in MMT-SI of a broadcasting system. It is a list (3) of a descriptor used in MMT-SI of a broadcasting system. It is a figure which shows the relationship between the component of a broadcasting system and each table. It is a figure which shows the data structure of MPT of a broadcasting system. It is a figure which shows the data structure of the location information of a broadcasting system. It is a figure which shows the data structure of the MPU time stamp descriptor of a broadcasting system. It is a figure which shows the data structure of MH-EIT of a broadcasting system. It is a figure which shows the data structure of the event package descriptor of a broadcasting system. It is a block diagram of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a block diagram of the logical plane structure of the presentation function of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a software configuration diagram of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a block diagram of the broadcasting station server which concerns on Example 1. FIG. It is a block diagram of the service provider server which concerns on Example 1. FIG. It is a block diagram of the mobile information terminal which concerns on Example 1. FIG. It is a software configuration diagram of the mobile information terminal which concerns on Example 1. FIG. FIG. 5 is a system configuration diagram of clock synchronization / presentation synchronization of the broadcast receiving device according to the first embodiment. It is a figure which shows the data structure of the NTP format of a broadcasting system. It is a figure which shows the data structure of MH-TOT of a broadcasting system. It is a figure which shows the format of the JST_time parameter of a broadcasting system. It is a figure which shows the data structure of the time information of the TMCC extended information area of a broadcasting system. It is a figure which shows the calculation method of the present date from MJD of the broadcast receiving apparatus which concerns on Example 1. FIG. It is operation sequence diagram at the time of the channel scan of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a figure which shows the data structure of TLV-NIT of a broadcasting system. It is a figure which shows the data structure of the satellite distribution system descriptor of a broadcasting system. It is a figure which shows the data structure of the service list descriptor of a broadcasting system. It is a figure which shows the data structure of AMT of a broadcasting system. FIG. 5 is an operation sequence diagram at the time of channel selection of the broadcast receiving device according to the first embodiment. It is a conceptual diagram explaining the reference of MPT of each package by PLT of a broadcasting system. It is a figure which shows the data structure of the PLT of a broadcasting system. FIG. 5 is an external view of a remote controller capable of controlling the broadcast receiving device according to the first embodiment. It is a figure which shows the data structure of the remote control key descriptor of a broadcasting system. It is a figure explaining the channel selection process of a multi-organization channel. It is a figure explaining the angle selection process of a multi-view compatible program. It is a figure which shows the data structure of the LCT of a broadcasting system. It is a figure which shows the data structure of the MPU presentation area designation descriptor of a broadcasting system. It is a figure which shows the assignment of the layout to the layout number based on LCT. It is a figure which shows the assignment of the layout to the layout number based on LCT. It is a figure which shows the assignment of the layout to the layout number based on LCT. It is a figure which shows the assignment of the layout to the layout number based on LCT. It is a figure explaining the exception handling of the screen layout control based on LCT. It is a figure explaining the exception handling of the screen layout control based on LCT. It is a figure which shows the data structure of the video component descriptor of a broadcasting system. It is a figure explaining the meaning of the video signal aspect ratio of a video component descriptor. It is a figure explaining the aspect ratio conversion processing of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a figure explaining the aspect ratio conversion processing of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a screen display figure of the EPG screen of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a screen display figure of the EPG screen of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a screen display figure of the EPG screen of the broadcast receiving apparatus which concerns on Example 1. FIG. It is a screen display figure at the time of the emergency warning broadcast display of the broadcast receiving device which concerns on Example 1. FIG. It is a figure which shows the data structure of the content copy control descriptor of a broadcasting system. It is a figure which shows the meaning of the copy control information of a content copy control descriptor. It is a figure which shows the data structure of the content use control descriptor of a broadcasting system. It is a block diagram of the broadcast receiving apparatus which concerns on Example 2. FIG. It is a figure explaining the inconsistency of the current time display at the time of switching a broadcasting service. It is a figure explaining the operation of the selection control of the present time information reference source which concerns on Example 2. FIG. It is an operation sequence diagram of the update process of the present time information which concerns on Example 2. FIG. It is a screen display figure of the EPG screen of the broadcast receiving apparatus which concerns on Example 2. FIG. It is a screen display figure of the EPG screen of the broadcast receiving apparatus which concerns on Example 2. FIG. FIG. 5 is an external view of a remote controller capable of controlling the broadcast receiving device according to the third embodiment. It is a figure explaining the outline of the operation at the time of pressing the MM key of the broadcast receiving device which concerns on Example 3. FIG. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device. It is a figure explaining the operation at the time of pressing the MM key of a broadcast receiving device.

Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings.

(Example 1)
[System configuration]
FIG. 1 is a system configuration diagram showing an example of a broadcasting communication system including the broadcasting receiving device of this embodiment. The broadcasting communication system of this embodiment includes a broadcasting receiving device 100 and an antenna 100a, a broadband network such as the Internet 200, a router device 200r and an access point 200a, a broadcasting station radio tower 300t and a broadcasting satellite (or communication satellite) 300s, and a broadcasting station. It is composed of a server 300, a service provider server 400, another application server 500, a mobile telephone communication server 600, a base station 600b of a mobile telephone communication network, and a mobile information terminal 700.

The broadcast receiving device 100 receives the broadcast wave transmitted from the radio tower 300t via the broadcasting satellite (or communication satellite) 300s and the antenna 100a. Alternatively, the broadcast wave transmitted from the radio tower 300t may be directly received from the antenna 100a without going through the broadcasting satellite (or communication satellite) 300s. Further, the broadcast receiving device 100 can be connected to the Internet 200 via the router device 200r, and can transmit and receive data by communicating with each server device and other communication devices on the Internet 200.

The router device 200r is connected to the Internet 200 by wired communication, is connected to the broadcast receiving device 100 by wired communication or wireless communication, and is connected to the mobile information terminal 700 by wireless communication. For the wireless communication, a method such as Wi-Fi (registered trademark) may be used. As a result, each server device and other communication devices on the Internet 200, the broadcast receiving device 100, and the portable information terminal 700 can mutually perform data transmission / reception via the router device 200r. The communication between the broadcast receiving device 100 and the mobile information terminal 700 may be performed directly by a method such as Bluetooth (registered trademark) or NFC (Near Field Communication) without going through the router device 200r.

The radio tower 300t is a broadcasting facility of a broadcasting station, and transmits broadcast waves including encoded data of broadcast programs, subtitle information, other applications, general-purpose data, and the like. The broadcasting satellite (or communication satellite) 300s receives the broadcasting wave transmitted from the radio tower 300t of the broadcasting station, performs frequency conversion and the like as appropriate, and then broadcasts the broadcast to the antenna 100a connected to the broadcasting receiving device 100. It is a repeater that retransmits waves. Further, the broadcasting station shall include a broadcasting station server 300. The broadcasting station server 300 stores metadata such as broadcast programs (video contents, etc.), program titles, program IDs, program outlines, performer information, broadcast dates, etc. of each broadcast program, and stores the video contents and each metadata. , It shall be possible to provide to the service provider based on the contract. The video content and each metadata may be provided to the service provider through an API (Application Programming Interface) provided in the broadcasting station server 300.

The service provider server 400 is a server device prepared by the service provider, and can provide various services linked to a broadcast program distributed from a broadcasting station. In addition, the service provider server 400 stores, manages, and distributes moving image contents and metadata provided by the broadcasting station server 300, various contents and applications linked to the broadcasting program, and the like. It also has a function to search for contents and applications that can be provided and to provide a list in response to inquiries from TV receivers and the like. The storage, management and distribution of the content and metadata and the storage, management and distribution of the application may be performed by different server devices. The broadcasting station and the service provider may be the same or different. A plurality of service provider servers 400 may be prepared for each different service. Further, the function of the service provider server 400 may be provided by the broadcasting station server 300.

The other application server 500 is a known server device that stores, manages, and distributes other general applications, operation programs, contents, data, and the like. There may be a plurality of other application servers 500 on the Internet 200.

The mobile telephone communication server 600 is connected to the Internet 200, while being connected to the mobile information terminal 700 via the base station 600b. The mobile telephone communication server 600 manages telephone communication (call) and data transmission / reception via the mobile telephone communication network of the mobile information terminal 700, and each server device and other communication devices on the mobile information terminal 700 and the Internet 200. It enables the transmission and reception of data by communication with. Communication between the base station 600b and the mobile information terminal 700 is performed by the W-CDMA (Wideband Code Division Multiple Access) (registered trademark) method, the GSM (Global System for Mobile communications) (registered trademark) method, and the LTE (LongTor) method. , Or other communication method may be used.

The mobile information terminal 700 shall have a function of telephone communication (call) and data transmission / reception via a mobile telephone communication network and a function of wireless communication by Wi-Fi (registered trademark) or the like. The mobile information terminal 700 can be connected to the Internet 200 via the router device 200r or the access point 200a, or via the base station 600b and the mobile telephone communication server 600 of the mobile telephone communication network, and can be connected to the Internet 200 on the Internet 200. It is possible to send and receive data by communicating with each of the server devices and other communication devices. The access point 200a is connected to the Internet 200 by wire communication, and is also connected to the mobile information terminal 700 by wireless communication. For the wireless communication, a method such as Wi-Fi (registered trademark) may be used. Communication between the mobile information terminal 700 and the broadcast receiving device 100 is performed via the access point 200a, the Internet 200, and the router device 200r, or through the base station 600b, the mobile telephone communication server 600, the Internet 200, and the router device 200r. It may be done through.

[Overview of MMT method]
The broadcast receiving device 100 shown in FIG. 1 is defined by the MPEG (Moving Picture Experts Group) -2 system, which is widely used in conventional digital broadcasting systems, as a media transport system for transmitting data such as video and audio. It is assumed that the TV receiver is compatible with MMT (MPEG Media Transport) in place of the TS (Transport System) (hereinafter referred to as MPEG2-TS). It may be a television receiver capable of supporting both MPEG2-TS and MMT.

MPEG2-TS is characterized in that components such as video and audio that make up a program are multiplexed into one stream together with a control signal and a clock. Since it is treated as one stream including the clock, it is suitable for transmitting one content on one transmission line in which transmission quality is ensured, and has been adopted in many conventional digital broadcasting systems. On the other hand, MPEG2-TS functions in response to changes in the environment related to content distribution, such as the diversification of content in recent years, the diversification of devices that use content, the diversification of transmission lines that distribute content, and the diversification of content storage environments. MMT is a newly formulated media transport system because of its limitations.

FIG. 2A shows an example of an outline of the coded signal in the MMT of this embodiment. As shown in the figure, the MMT of this embodiment has an MFU (Media Fragment Unit), an MPU (Media Processing Unit), an MMTP (MMT Protocol) payload, and an MMTP packet as elements constituting the coded signal. And.

The MFU is a format at the time of transmission of video, audio, etc., and may be configured in units of NAL (Network Operation Layer) units or access units. It is assumed that the MPU includes one or more access units and can perform video and audio decoding processing by the MPU alone. The MPU may be composed of MPU metadata including information on the configuration of the entire MPU, movie fragment metadata including information on encoded media data, and sample data which is encoded media data. A plurality of movie fragment data and sample data may exist in one MPU. Further, it is assumed that the MFU can be extracted from the sample data. FIG. 2B shows an example of the configuration of the MPU. By adding a sequence number to each MPU belonging to the same asset, any MPU can be distinguished from other MPUs by the asset ID that identifies the asset and the sequence number of the MPU. Further, in the case of media such as a video component and an audio component, the presentation time and the decoding time may be specified for each MPU or access unit.

The MMTP packet is composed of a header part and an MMTP payload, and transmits MFU and MMT control information. The MMTP payload shall include a payload header according to the content (data unit) stored in the payload section. FIG. 2C shows an example of an outline of constructing an MFU from a video / audio signal, further storing it in an MMTP payload, and constructing an MMTP packet. In the video signal encoded by using the inter-frame prediction, it is desirable that the MPU is configured in GOP (Group Of Pictures) units. When the size of the MFU to be transmitted is small, one MFU may be stored in one payload unit, or a plurality of MFUs of the same type may be stored in one payload unit. Further, when the size of the MFU to be transmitted is large, one MFU may be divided and stored in a plurality of payload units. Further, the MMTP packet may be protected by using a technique such as AL-FEC (Application Layer Forward Error) or ARQ (Automatic Repeat Request) in order to recover the packet loss on the transmission path.

In the broadcasting system of this embodiment, MPEG-H HEVC (High Efficiency Video Coding) is used as the video coding method, and MPEG-4 AAC (Advanced Audio Coding) or MPEG-4 ALS (Audio Lossless) is used as the audio coding method. Coding) shall be used. Encoded data such as video and audio of a broadcast program encoded by each of the above methods is in the form of MFU or MPU, further put on an MMTP payload, converted into an MMTP packet, and transmitted as an IP (Internet Protocol) packet. And. Further, the data content related to the broadcast program may also be in the format of MFU or MPU, further mounted on the MMTP payload to form an MMTP packet, and transmitted as an IP packet. Data content transmission methods include (1) subtitle / character super transmission method used for streaming data synchronized with broadcasting, (2) application transmission method used for data transmission service asynchronous with broadcasting, and (3) from broadcasting stations. Four types are prepared: an event message transmission method used for synchronous / asynchronous message notification to an application running on a TV receiver, and (4) a general-purpose data transmission method for transmitting other general-purpose data synchronously / asynchronously. It shall be.

For the transmission of MMTP packets, UDP / IP (User Datagram Protocol / Internet Protocol) is used in the broadcast transmission line, and UDP / IP or TCP / IP (Transmission Control Protocol / Internet Protocol) is used in the communication line. .. Further, in the broadcast transmission line, a TLV (Type Length Value) multiplexing method is used for efficient transmission of IP packets. An example of the protocol stack of the broadcasting system of this embodiment is shown in FIG. In the figure, (A) is an example of a protocol stack in a broadcast transmission line, and (B) is an example of a protocol stack in a communication line.

In the broadcasting system of this embodiment, it is assumed that a mechanism for transmitting two types of control information, MMT-SI (MMT-Signaling Information) and TLV-SI (TLV-Signaling Information), is prepared. MMT-SI is control information indicating the structure of a broadcast program and the like. It shall be in the form of an MMT control message, put on an MMTP payload, converted into an MMTP packet, and transmitted as an IP packet. The TLV-SI is control information related to IP packet multiplexing, and provides information for channel selection and correspondence information between an IP address and a service.

Further, even in a broadcasting system using MMT, time information is transmitted in order to provide an absolute time. In addition, while MPEG2-TS shows the display time of the component based on a different clock for each TS, MMT shows the display time of the component based on Coordinated Universal Time (UTC). To do. With these mechanisms, the terminal device can synchronously display the components transmitted from different transmission points on different transmission lines. In order to provide UTC, it is assumed that an IP packet in NTP (Network Time Protocol) format is used.

[Control information of broadcasting system using MMT]
In the broadcasting system supported by the broadcasting receiving device 100 of this embodiment, as described above, the control information includes TLV-SI related to the TLV multiplexing method for multiplexing IP packets and MMT which is the media transport method. Prepare the MMT-SI to be involved. The TLV-SI provides information for the broadcast receiving device 100 to demultiplex the IP packets multiplexed on the broadcast transmission line. TLV-SI is composed of a "table" and a "descriptor". The "table" shall be transmitted in section format and the "descriptor" shall be placed within the "table". The MMT-SI is transmission control information indicating information related to the configuration of the MMT package and the broadcasting service. MMT-SI is composed of three layers: a "message" that stores "tables" and "descriptors", a "table" that has elements and attributes that indicate specific information, and a "descriptor" that indicates more detailed information. Shall be. FIG. 4 shows an example of the hierarchical structure of the control information used in the broadcasting system of this embodiment.

<Table used in TLV-SI>
FIG. 5A shows a list of "tables" used in the TLV-SI of the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. In this embodiment, the following is used as the "table" of TLV-SI.

(1) TLV-NIT
The network information table for TLV (Network Information Table for TLV: TLV-NIT) represents information on the physical configuration of the TLV stream transmitted by the network and the characteristics of the network itself.

(2) AMT
The Address Map Table (AMT) provides a list of multicast groups of IP packets that make up each service transmitted in the network.

(3) Table set by the business operator In addition, it is possible to prepare a table set by the service provider or the like.

<Descriptor used in TLV-SI>
FIG. 5B shows a list of "descriptors" arranged in the TLV-SI of the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. In this embodiment, the following is used as the "descriptor" of TLV-SI.

(1) Service list descriptor The service list descriptor provides a list of services according to service identification and service type.

(2) Satellite distribution system descriptor The satellite distribution system descriptor indicates the physical conditions of the satellite transmission line.

(3) System management descriptor The system management descriptor is used to distinguish between broadcast and non-broadcast.

(4) Network name descriptor The network name descriptor describes the network name in character code.

(5) Remote control key descriptor The remote control key descriptor is used to set the service to be assigned to the one-touch channel selection button of the remote controller for the receiver.

(6) Descriptor set by the service provider In addition, it is possible to prepare a descriptor set by the service provider or the like.

<Message used in MMT-SI>
FIG. 6A shows a list of "messages" used in the MMT-SI of the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. In this embodiment, the following is used as the "message" of MMT-SI.

(1) PA message The Package Access (PA) message is used to transmit various tables.

(2) M2 section message The M2 section message is used to transmit the section extension format of MPEG-2 Systems.

(3) CA message The CA message is used to transmit a table for identifying the limited reception method.

(4) M2 short section message The M2 short section message is used to transmit the section short format of MPEG-2 Systems.

(5) Data transmission message A data transmission message is a message that stores a table related to data transmission.

(6) Message set by the service provider In addition, it is possible to prepare a message set by the service provider or the like.

<Table used in MMT-SI>
FIG. 6B shows a list of "tables" used in the MMT-SI of the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. A table is control information having elements and attributes indicating specific information, and is stored in a message and transmitted as an MMTP packet. The message for storing the table may be determined according to the table. In this embodiment, the following is used as the "table" of MMT-SI.

(1) MPT
The MMT Package Table (MPT) provides information that constitutes a package, such as a list of assets and the location of assets on the network. The MPT may be stored in a PA message.

(2) PLT
The package list table (Package List Table: PLT) shows a list of IP data flows and packet IDs for transmitting PA messages of MMT packages provided as a broadcasting service, and IP data flows for transmitting IP services. The PLT may be stored in a PA message.

(3) LCT
The layout setting table (Layout Configuration Table: LCT) is used to associate the layout information for presentation with the layout number. The LCT may be stored in a PA message.

(4) ECM
The Entitlement Control Message (ECM) is common information consisting of program information and control information, and delivers key information for descrambling and the like. The ECM may be stored in the M2 section message.

(5) EMM
The Enterprise Mobility Management (EMM) transmits individual information including contract information for each subscriber and key information for decrypting ECM (common information). The EMM may be stored in the M2 section message.

(6) CAT (MH)
The CA table (Conditional Access Table: CAT) (MH) is used to store descriptors for identifying the conditional access method. CAT (MH) may be stored in a CA message.

(7) DCM
The Download Control Message (DCM) transmits key-related information including a key for decrypting a transmission line code for download. The DCM may be stored in the M2 section message.

(8) DMM
The Download Management Message (DMM) transmits key-related information such as a download key for decrypting the DCM. The DMM may be stored in the M2 section message.

(9) MH-EIT
The MH-event information table (MH-Event Information Table: MH-EIT) is time-series information regarding events included in each service. The MH-EIT may be stored in the M2 section message.

(10) MH-AIT
The MH-Application Information Table (MH-AIT) stores all information about the application, the startup state required for the application, and the like. The MH-AIT may be stored in the M2 section message.

(11) MH-BIT
The MH-Broadcaster Information Table (MH-Broadcaster Information Table: MH-BIT) is used to present information on broadcasters existing on the network. The MH-BIT may be stored in the M2 section message.

(12) MH-SDTT
The MH-Software Download Trigger Table (MH-Software Download Trigger Table: MH-SDTT) is used for download notification information. The MH-SDTT may be stored in the M2 section message.

(13) MH-SDT
The MH-Service Description Table (MH-SDT) has a sub-table representing services included in a specific TLV stream, and information about the organization channel such as the name of the organization channel and the name of the broadcaster. To transmit. The MH-SDT may be stored in the M2 section message.

(14) MH-TOT
The MH-Time Offset Table (MH-TOT) transmits JST time and date (corrected Julian day) information. The MH-TOT may be stored in an M2 short section message.

(15) MH-CDT
The MH-Common Data Table (MH-CDT) is used to transmit common data to be stored in the non-volatile memory in a section format to all receivers that receive it. The MH-CDT may be stored in the M2 section message.

(16) DDM table The data directory management table (Data Directory Management Table: DDM table) provides a directory structure of files constituting an application in order to separate the file structure of the application from the structure for file transmission. The DDM table may be stored in the data transmission message.

(17) DAM table The data asset management table (Data Asset Management Table: DAM table) provides the configuration of the MPU in the asset and the version information for each MPU. The DAM table may be stored in the data transmission message.

(18) DCC table The data content management table (Data Content Configuration Table) provides configuration information of a file as data content in order to realize flexible and effective cache control. The DCC table may be stored in the data transmission message.

(19) EMT
The event message table (EMT) is used to transmit information about event messages. The EMT may be stored in the M2 section message.

(20) Table set by the business operator In addition, it is possible to prepare a table set by the service provider or the like.

<Descriptor used in MMT-SI>
6C, 6D, and 6E show a list of "descriptors" arranged in the MMT-SI of the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. The descriptor is the control information that provides more detailed information and shall be placed in the table. The table in which the descriptor is placed may be determined according to the descriptor. In this embodiment, the following is used as the "descriptor" of MMT-SI.

(1) Asset group descriptor The asset group descriptor provides the group relationship of assets and the priority within the group. The asset group descriptor may be placed in the MPT.

(2) Event package descriptor The event package descriptor provides a correspondence between an event representing a program and a package. The event package descriptor may be placed in the MH-EIT transmitted in the M2 section message.

(3) Background color designation descriptor The background color designation descriptor provides the backmost background color in the layout designation. The background color specification descriptor may be placed in the LCT.

(4) MPU presentation area designation descriptor The MPU presentation area designation descriptor provides a position for presenting the MPU. The MPU presentation area specification descriptor may be placed in the MPT.

(5) MPU time stamp descriptor The MPU time stamp descriptor indicates the presentation time of the first access unit in the presentation order in the MPU. The MPU timestamp descriptor may be placed in the MPT.

(6) Dependency Dependency The dependency descriptor provides the asset ID of the asset having the dependency. The dependency descriptor may be placed in the MPT.

(7) Access control descriptor The access control descriptor provides information for identifying the limited reception method. The access control descriptor may be located in MPT or CAT (MH).

(8) Scramble method descriptor The scramble method descriptor provides information for identifying the encryption target and the type of encryption algorithm at the time of scrambling. The scrambled descriptor may be located in MPT or CAT (MH).

(9) Message Authentication Method Descriptor The message authentication method descriptor provides information for identifying the message authentication method when performing message authentication. The message authentication method descriptor may be placed in MPT or CAT (MH).

(10) Emergency Information Descriptor (MH)
The emergency information descriptor (MH) is used when performing an emergency warning broadcast. The emergency information descriptor (MH) may be placed in the MPT.

(11) MH-MPEG-4 Audio Descriptor The MH-MPEG-4 audio descriptor describes basic information for specifying the encoding parameters of the ISO / IEC 14496-3 (MPEG-4 audio) audio stream. Used for. The MH-MPEG-4 audio descriptor may be placed in the MPT.

(12) MH-MPEG-4 Audio Extension Descriptor The MH-MPEG-4 Audio Extension Descriptor is used to describe the profile and level of the MPEG-4 audio stream and the encoding-specific settings. The MH-MPEG-4 audio extension descriptor may be placed in the MPT.

(13) MH-HEVC Video Descriptor The MH-HEVC video descriptor is described in ITU-T Recommendation H.K. 265 | Used to describe the basic coding parameters of the ISO / IEC 23008-2 video stream (HEVC stream). The MH-HEVC video descriptor may be placed in the MPT.

(14) MH-Link Descriptor The MH-link descriptor identifies a service provided when a viewer requests additional information related to a particular one described in a program sequence information system. The MH-link descriptor may be arranged in MPT, MH-EIT, MH-SDT, etc.

(15) MH-Event Group Descriptor The MH-event group descriptor is used to indicate that a group of events is grouped when there is a relationship between a plurality of events. The MH-event group descriptor may be located in the MH-EIT.

(16) MH-Service List Descriptor The MH-Service List Descriptor provides a list of services by service identification and service type. The MH-service list descriptor may be located in the MH-BIT.

(17) MH-Short Event Descriptor The MH-Short Event Descriptor represents an event name and a short description of the event in text format. The MH-short event descriptor may be located in the MH-EIT.

(18) MH-Extended Event Descriptor The MH-Extended Event Descriptor is used in addition to the MH-Short Event Descriptor to provide a detailed description of the event. The MH-extended event descriptor may be located in the MH-EIT.

(19) Video Component Descriptor The video component descriptor shows parameters and explanations related to the video component, and is also used to express the elementary stream in a character format. The video component descriptor may be placed in MPT or MH-EIT.

(20) MH-stream identification descriptor The MH-stream identification descriptor is used because the component stream of the service is labeled and the description content indicated by the video component descriptor in the MH-EIT can be referred to by this label. .. The MH-stream identification descriptor may be placed in the MPT.

(21) MH-content descriptor The MH-content descriptor indicates the genre of the event. The MH-content descriptor may be placed in the MH-EIT.

(22) MH-Parent Rate Descriptor The MH-Parent Rate Descriptor represents an age-based viewing restriction and is used to extend to be based on other restriction conditions. The MH-parent rate descriptor may be placed in MPT or MH-EIT.

(23) MH-Voice Component Descriptor The MH-Voice Component Descriptor indicates each parameter of the voice elemental stream, and is also used to express the elemental stream in a character format. The MH-voice component descriptor may be located in MPT or MH-EIT.

(24) MH-Target Area Descriptor The MH-Target Area Descriptor is used to describe a program or the area covered by some of the streams that make up the program. The MH-target area descriptor may be placed in the MPT.

(25) MH-series descriptor The MH-series descriptor is used to identify a series program. The MH-series descriptor may be located in the MH-EIT.

(26) MH-SI transmission parameter descriptor The MH-SI transmission parameter descriptor is used to indicate the transmission parameter of SI. The MH-SI transmission parameter descriptor may be located in the MH-BIT.

(27) MH-Broadcaster Name Descriptor The MH-Broadcaster Name Descriptor describes the name of the Broadcaster. The MH-broadcaster name descriptor may be located in the MH-BIT.

(28) MH-Service Descriptor The MH-Service Descriptor represents the organization channel name and its operator name in character code together with the service format type. The MH-service descriptor may be located in the MH-SDT.

(29) IP data flow descriptor The IP data flow descriptor provides information on the IP data flow that constitutes the service. The IP data flow descriptor may be located in the MH-SDT.

(30) MH-CA activation descriptor The MH-CA activation descriptor describes activation information for invoking a CAS program on the CAS platform. The MH-CA activation descriptor may be located in MPT or CAT (CA).

(31) MH-Type Descriptor The MH-Type descriptor indicates the type of the file transmitted by the application transmission method. The MH-Type descriptor may be placed in the DAM table.

(32) MH-Info Descriptor The MH-Info descriptor describes information about an MPU or an item. The MH-Info descriptor may be placed in the DAM table.

(33) MH-Expire Descriptor The MH-Expire descriptor describes the expiration date of the item. The MH-Expire descriptor may be placed in the DAM table.

(34) MH-Compression Type Descriptor The MH-Compression Type descriptor means that the item to be transmitted is compressed, and indicates the compression algorithm and the number of bytes of the item before compression. The MH-Compression Type descriptor may be placed in the DAM table.

(35) MH-Data encoding scheme descriptor The MH-Data encoding scheme descriptor is used to identify the data encoding scheme. The MH-data encoding descriptor may be located in the MPT.

(36) UTC-NPT Reference Descriptor The UTC-NPT reference descriptor is used to convey the relationship between NPT (Normal Play Time) and UTC. The UTC-NPT reference descriptor may be placed in the EMT.

(37) Event message descriptor The event message descriptor conveys information about event messages in general. The event message descriptor may be placed in the EMT.

(38) MH-Local Time Offset Descriptor The MH-local time offset descriptor is used when the actual time (for example, UTC + 9 hours) and the display time to the human system have a constant offset value when the summer time is executed. The MH-local time offset descriptor may be located in the MH-TOT.

(39) MH-Component Group Descriptor The MH-Component Group Descriptor defines and identifies a combination of components in an event. The MH-component group descriptor may be located in the MH-EIT.

(40) MH-Logo Transmission Descriptor The MH-logo transmission descriptor is used to describe a character string for a simple logo, pointing to a logo in CDT format, and the like. The MH-logo transmission descriptor may be located in the MH-SDT.

(41) MPU Extended Timestamp Descriptor The MPU Extended Timestamp Descriptor provides the decryption time of the access unit in the MPU. The MPU extended timestamp descriptor may be placed in the MPT.

(42) MPU Download Content Descriptor The MPU download content descriptor is used to describe the attribute information of the content downloaded by using the MPU. The MPU download content descriptor may be located in MH-SDTT.

(43) MH-Network Downloadable Content Descriptor The MH-Network Downloadable Content Descriptor is used to describe the attribute information of the content downloaded using the network. The MH-Network Downloadable Content Descriptor may be located in MH-SDTT.

(44) MH-Application Descriptor The MH-application descriptor describes information about the application. The MH-application descriptor may be located in the MH-AIT.

(45) MH-Transmission Protocol Descriptor The MH-Transmission Protocol Descriptor is used to specify a transmission protocol such as broadcasting or communication and to indicate the location information of an application depending on the transmission protocol. The MH-transmission protocol descriptor may be located in the MH-AIT.

(46) MH-Simple Application Location Descriptor The MH-Simple Application Location Descriptor is described to indicate the details of the acquisition destination of the application. The MH-Simple Application Location Descriptor may be located in the MH-AIT.

(47) MH-Application Boundary Authority Setting Descriptor The MH-Application Boundary Authority Setting Descriptor is described in order to set the application boundary and set the broadcasting resource access authority for each area (URL). The MH-application boundary authority setting descriptor may be placed in the MH-AIT.

(48) MH-Startup Priority Information Descriptor The MH-Startup Priority Information Descriptor is described to specify the start-up priority of the application. The MH-start priority information descriptor may be placed in the MH-AIT.

(49) MH-cache information descriptor The MH-cache information descriptor is described for use in cache control when the resources constituting the application are cached and held when the application is expected to be reused. .. The MH-cache information descriptor may be located in the MH-AIT.

(50) MH-Stochastic Application Delay Descriptor The MH-stochastic application delay descriptor is for delaying the timing of application control by a probabilistically set delay amount, assuming the load distribution of server access for application acquisition. Describe in. The MH-stochastic application delay descriptor may be placed in the MH-AIT.

(51) Link destination PU descriptor The link destination PU descriptor describes another presentation unit that may transition from the presentation unit (PU). The linked PU descriptor may be placed in the DCC table.

(52) Lock cache specification descriptor The lock cache specification descriptor describes the specification of the file to be cached and locked in the presentation unit. The lock cache specification descriptor may be placed in the DCC table.

(53) Unlock cache specification descriptor The unlock cache specification descriptor describes the specification of the file to be unlocked among the files locked in the presentation unit. The unlock cache specification descriptor may be placed in the DCC table.

(54) MH-Download Protection Descriptor The MH-Download Protection Descriptor describes the location information and transmission information of the MMTP packet that transmits the DCM or DMM. The MH-download protection descriptor may be located in MPT or MH-SDTT.

(55) Application service descriptor The application service descriptor describes entry information and the like of an application related to the service. The application service descriptor may be placed in the MPT.

(56) MPU node descriptor The MPU node descriptor indicates that the MPU corresponds to the directory node specified in the data directory management table. The MPU node descriptor may be placed in the DAM table.

(57) PU configuration descriptor The PU configuration descriptor shows a list of MPUs constituting the presentation unit as mapping information between the presentation unit and the transmission unit. The PU configuration descriptor may be placed in the DCC table.

(58) MH-Hierarchical Coding Descriptor The MH-Hierarchical Coding Descriptor describes information for identifying a hierarchically coded video stream component. The MH-hierarchical coding descriptor may be placed in the MPT.

(59) Content copy control descriptor The content copy control descriptor indicates information for controlling the copy generation in the digital recording device for the entire service, and when digital recording is expected to be performed, the broadcasting station (copyright). It is used by the person) to convey information about copying or the maximum transmission rate to digital recording equipment. The content copy control descriptor may be arranged in MPT, MH-EIT, MH-SDT, or the like.

(60) Content usage control descriptor The content usage control descriptor indicates information related to copy control and remote viewing control when storing a program on a hard disk or the like or when outputting a video / audio signal from a receiver. Used for The content usage control descriptor may be arranged in MPT, MH-EIT, MH-SDT, or the like.

(61) Descriptor set by the business operator In addition, it is possible to prepare a descriptor set by the service provider or the like.

<Relationship between data transmission and each control information in the MMT method>
Here, with reference to FIG. 7A, the relationship between each component such as video and audio transmitted by the broadcast system supported by the broadcast receiver 100 of the present embodiment and a typical table of MMT-SI will be described. In the MMT method, a component is defined as an asset, and in the following, the component may be referred to as an asset.

In the broadcasting system supported by the broadcasting receiving device 100 of the present embodiment, data transmission can be performed by a plurality of routes such as a TLV stream via a broadcasting transmission line and an IP data flow via a communication line. The TLV stream includes a TLV-SI such as TLV-NIT and AMT, and an IP data flow which is a data flow of an IP packet. The IP data flow includes a video asset including a series of video MPUs and an audio asset including a series of audio MPUs. Similarly, the IP data flow may include a subtitle asset including a series of subtitle MPUs, a character super asset including a series of character super MPUs, a data asset including a series of data MPUs, and the like.

These various assets are associated with the "package" by the description of the MPT (MMT package table) stored and transmitted in the PA message. Specifically, the association may be performed by describing the package ID that identifies the package and the asset ID that identifies each asset included in the package in the MPT. FIG. 7B shows an example of the MPT data structure. The "MMT_package_id_byte" parameter in the figure corresponds to the package ID, and the "asset_id_byte" parameter corresponds to the asset ID.

The assets that make up the package can be only the assets in the TLV stream, but as shown in FIG. 7A, the assets transmitted by the IP data flow of the communication line can also be included. This is because the location information of the asset is described in the MPT together with the asset ID that identifies each asset included in the package so that the broadcast receiving device 100 of this embodiment can grasp the reference destination of each asset. realizable. The location information is specified by "MMT_general_location_info ()" in the MPT data structure shown in FIG. 7B. FIG. 7C shows an example of the data structure of location information.

In addition, according to the value of the "location_type" parameter of the location information,
(1) Data multiplexed in the same IP data flow as MPT (location_type = 0x00)
(2) Data multiplexed in the IPv4 data flow (location_type = 0x01)
(3) Data multiplexed in the IPv6 data flow (location_type = 0x02)
(4) Data multiplexed on the broadcast MPEG2-TS (location_type = 0x03)
(5) Data multiplexed in MPEG2-TS format in the IP data flow (location_type = 0x04)
(6) Data at the specified URL (location_type = 0x05)
It is possible to configure the broadcast receiving device 100 so that various data transmitted by various transmission paths can be referred to.

Among the above-mentioned references, (1) is, for example, an IP data flow included in a TLV stream of a digital broadcast signal received by the broadcast receiving device 100 of the present embodiment via the antenna 100a. However, when the MPT is also included in the IP data flow on the communication line side for transmission, the reference destination in (1) may be the IP data flow received via the communication line. Further, the above (2), (3), (5), and (6) are IP data flows received by the broadcast receiving device 100 of this embodiment via a communication line. Further, the above (4) receives, for example, a reception function for receiving a digital broadcast signal using the MMT method and a digital broadcast signal using the MPEG2-TS method, as in the broadcast receiving device 800 of the second embodiment described later. In the case of a broadcast receiving device having both receiving functions, MPEG2-received by the receiving function for receiving the digital broadcasting signal using the MPEG2-TS method based on the location information of MPT included in the digital broadcasting signal using the MMT method. It can be used to refer to the data multiplexed in the TS.

Further, in media such as video components and audio components, the presentation time and the decoding time can be specified for each MPU or access unit. Information on the presentation time and the decoding time is described in the MPT as an MPU time stamp descriptor or an MPU extended time stamp descriptor. FIG. 7D shows an example of the data structure of the MPU time stamp descriptor that describes the information regarding the presentation time. The presentation time information of each MPU is specified by the "mpu_presentation_time" parameter of the MPU time stamp descriptor. Further, the MPU to be designated can be identified by the "mpu_sequence_number" parameter. In the broadcast receiving device 100 of this embodiment, a plurality of MPUs designated by the MPT are presented (displayed and output) in conjunction with each other based on the clock based on NTP, which is the time information in UTC, using the presented time information. Etc.). Further, the information regarding the decoding time is also described by the MPU extended time stamp descriptor in the same manner, but detailed description thereof will be omitted. The presentation control of various data using the clock based on the NTP will be described later.

In the broadcasting system of this embodiment, the series of data in units of the "package" corresponds to the "service" of digital broadcasting. Further, the "service" is a series of "programs" transmitted according to a schedule. The "program" is treated as an "event" in the MMT system. The start time and duration of each event are specified by MH-EIT. Further, the event package descriptor arranged in MH-EIT specifies the ID of the MMT package corresponding to each event. FIG. 7E shows an example of the data structure of MH-EIT. The "start_time" parameter in the figure specifies the start time, and the "duration" parameter specifies the duration. FIG. 7F shows an example of the data structure of the event package descriptor. The correspondence between each event and the MMT package can be specified by the "MMT_package_id_byte" parameter of the event package descriptor placed in the MH-EIT. The MH-EIT performs various processes (for example, electronic program guide generation process, recording reservation and viewing reservation control, temporary storage, and other copyright management processes) in the "event" unit in the broadcast receiving device 100 of this embodiment. ) Etc.

[Hardware configuration of broadcast receiver]
FIG. 8A is a block diagram showing an example of the internal configuration of the broadcast receiving device 100. The broadcast receiving device 100 includes a main control unit 101, a system bus 102, a ROM 103, a RAM 104, a storage (storage) unit 110, a LAN communication unit 121, an expansion interface unit 124, a digital interface unit 125, a tuner / demodulation unit 131, and a separation unit 132. , Video decoder 141, video color gamut conversion unit 142, audio decoder 143, character super decoder 144, subtitle decoder 145, subtitle synthesis unit 146, subtitle color gamut conversion unit 147, data decoder 151, cache unit 152, application control unit 153, Consists of a browser unit 154, an application color gamut conversion unit 155, a sound source unit 156, a video synthesis unit 161, a monitor unit 162, a video output unit 163, a voice synthesis unit 164, a speaker unit 165, an audio output unit 166, and an operation input unit 170. Will be done.

The main control unit 101 is a microprocessor unit that controls the entire broadcast receiving device 100 according to a predetermined operation program. The system bus 102 is a data communication path for transmitting and receiving data between the main control unit 101 and each operation block in the broadcast receiving device 100.

The ROM (Read Only Memory) 103 is a non-volatile memory in which a basic operation program such as an operating system and other operation programs are stored. For example, a rewritable ROM such as an EEPROM (Electrical Erasable Program ROM) or a flash ROM can be used. Used. The ROM 103 may store the operation setting values necessary for the operation of the broadcast receiving device 100. The RAM (Random Access Memory) 104 serves as a work area for executing a basic operation program and other operation programs. The ROM 103 and the RAM 104 may be integrated with the main control unit 101. Further, the ROM 103 may not have an independent configuration as shown in FIG. 8A, but may use a partial storage area in the storage (storage) unit 110.

The storage (storage) unit 110 stores an operation program of the broadcast receiving device 100, an operation setting value, personal information of a user of the broadcast receiving device 100, and the like. In addition, an operation program downloaded via the Internet 200 and various data created by the operation program can be stored. In addition, contents such as moving images, still images, and sounds acquired from broadcast waves or downloaded via the Internet 200 can also be stored. A part of the function of the ROM 103 may be replaced by a part of the storage (storage) unit 110. Further, the storage (storage) unit 110 needs to hold the stored information even when the broadcast receiving device 100 is not supplied with power from the outside. Therefore, for example, a device such as a non-volatile semiconductor element memory such as a flash ROM or SSD (Solid State Drive), a magnetic disk drive such as an HDD (Hard Disk Drive), or the like is used.

It is assumed that each of the operation programs stored in the ROM 103 and the storage (storage) unit 110 can be added, updated, and expanded in function by a download process from each server device on the Internet 200.

The LAN (Local Area Network) communication unit 121 is connected to the Internet 200 via the router device 200r, and transmits / receives data to / from each server device and other communication devices on the Internet 200. In addition, the MMT data string (or a part thereof) of the program transmitted via the communication line shall be acquired. The connection with the router device 200r may be a wired connection or a wireless connection such as Wi-Fi (registered trademark). The LAN communication unit 121 is provided with a coding circuit, a decoding circuit, and the like. Further, the broadcast receiving device 100 may further include other communication units such as a Bluetooth (registered trademark) communication unit, an NFC communication unit, and an infrared communication unit.

The tuner / demodulation unit 131 receives the broadcast wave transmitted from the radio tower 300t via the antenna 100a, and tunes (selects) the channel of the service desired by the user based on the control of the main control unit 101. Further, the tuner / demodulation unit 131 demodulates the received broadcast signal to acquire the MMT data string. In the example shown in FIG. 8A, a configuration in which one tuner / demodulation unit is used is illustrated, but the broadcast receiving device 100 uses the tuner / demodulation unit for the purpose of simultaneous display of a plurality of screens, counterprogram recording, or the like. It may be configured to mount multiple devices.

The separation unit 132 is an MMT decoder, and based on the control signal in the input MMT data string, the video data string, the audio data string, the character super data string, the subtitle data string, etc., which are real-time presentation elements, are set to the video decoder 141, respectively. , Audio decoder 143, character super decoder 144, subtitle decoder 145, and the like. The data input to the separation unit 132 is an MMT data string transmitted via a broadcast transmission line and demodulated by the tuner / demodulation unit 131, or MMT data transmitted via a communication line and received by the LAN communication unit 121. It can be a line. Further, the separation unit 132 reproduces the multimedia application and the file system data which is a component thereof, and temporarily stores the file system data in the cache unit 152. Further, the separation unit 132 extracts general-purpose data and outputs it to the data decoder 151 in order to use it for streaming data to a data or application used by a player that presents data other than video / audio subtitles. Further, the separation unit 132 may perform error correction, access restriction control, and the like on the input MMT data string based on the control of the main control unit 101.

The video decoder 141 decodes the video data string input from the separation unit 132 and outputs the video information. The video color gamut conversion unit 142 performs color space conversion processing on the video information decoded by the video decoder 141 for the video composition processing by the video composition unit 161 as necessary. The voice decoder 143 decodes the voice data string input from the separation unit 132 and outputs the voice information. Further, even if streaming data such as MPEG-DASH (MPEG-Dynamic Adaptive Streaming over HTTP) format acquired from the Internet 200 via the LAN communication unit 121 is input to the video decoder 141 and the audio decoder 143. good. Further, a plurality of video decoder 141, video color gamut conversion unit 142, audio decoder 143, etc. may be provided in order to simultaneously decode a plurality of types of video data strings and audio data strings.

The character super decoder 144 decodes the character super data string input from the separation unit 132 and outputs the character super information. The subtitle decoder 145 decodes the subtitle data string input from the separation unit 132 and outputs the subtitle information. The character super information output from the character super decoder 144 and the subtitle information output from the subtitle decoder 145 are combined by the subtitle composition unit 146, and further, the subtitle color gamut conversion unit 147 is used by the video composition unit 161. Color space conversion processing is performed as necessary for the video composition processing. In this embodiment, among the services centered on character information presented at the same time as the video of the broadcast program, those related to the content of the video are referred to as subtitles, and the other services are referred to as character supermarkets. To do. In addition, when they are not distinguished, they are collectively referred to as subtitles.

The browser unit 154 inputs the multimedia application file acquired from the server device on the Internet 200 via the cache unit 152 or the LAN communication unit 121 and the file system data which is a component thereof to the control information and the LAN included in the MMT data string. It is presented according to the instruction of the application control unit 153 that interprets the control information acquired from the server device on the Internet 200 via the communication unit 121. The multimedia application file may be an HTML (HyperText Markup Language) document, a BML (Broadcast Markup Language) document, or the like. The application information output from the browser unit 154 is further subjected to color space conversion processing in the application color gamut conversion unit 155 for the image composition processing in the image composition unit 161 as necessary. Further, the browser unit 154 also reproduces the application voice information by acting on the sound source unit 156.

The video compositing unit 161 inputs the video information output from the video color gamut conversion unit 142, the subtitle information output from the subtitle color gamut conversion unit 147, the application information output from the application color gamut conversion unit 155, and the like, and appropriately Performs processing such as selection and / or superimposition. The video synthesis unit 161 includes a video RAM (not shown), and the monitor unit 162 and the like are driven based on the video information and the like input to the video RAM. Further, the video compositing unit 161 is an EPG (Electronic Program Guide:) created based on information such as scaling processing and MH-EIT included in the MMT-SI, if necessary, based on the control of the main control unit 101. Electronic program guide) Performs superimposition processing of screen information. The monitor unit 162 is a display device such as a liquid crystal panel, and provides the user of the broadcast receiving device 100 with the video information selected and / or superposed by the video compositing unit 161. The video output unit 163 is a video output interface that outputs video information that has been selected and / or superposed by the video compositing unit 161.

The presentation function of the broadcast receiving device 100 of this embodiment is provided with a logical plane structure in order to display the multimedia service as intended by the provider. FIG. 8B shows an example of the configuration of the logical plane structure provided in the presentation function of the broadcast receiving device 100 of this embodiment. In the logical plane structure, the character super plane for displaying the character super is arranged in the foreground, and the subtitle plane for displaying the subtitle is arranged in the next layer. A multimedia plane that displays broadcast video, multimedia applications, or their composite video is placed on the third layer, and a background plane is placed on the back. The subtitle synthesis unit 146 and the video composition unit 161 draw the character super information on the character super plane, draw the subtitle information on the subtitle plane, and draw the video information, application information, and the like on the multimedia plane. Further, the background color is drawn on the background plane based on the LCT or the like included in the MMT-SI. It is assumed that a plurality of third-layer multimedia planes can be prepared according to the number of video decoders 141. However, even when there are a plurality of multimedia planes, the application information and the like output from the application color gamut conversion unit 155 are output only to the foremost multimedia plane.

The voice synthesis unit 164 inputs the voice information output from the voice decoder 143 and the application voice information reproduced by the sound source unit 156, and appropriately selects and / or performs processing such as mixing. The speaker unit 165 provides the user of the broadcast receiving device 100 with the audio information selected and / or mixed by the speech synthesis unit 164. The voice output unit 166 is a voice output interface that outputs voice information that has been selected and / or mixed by the voice synthesis unit 164.

The expansion interface unit 124 is a group of interfaces for expanding the functions of the broadcast receiving device 100, and in this embodiment, it is composed of an analog video / audio interface, a USB (Universal Serial Bus) interface, a memory interface, and the like. To do. The analog video / audio interface inputs analog video / audio signals from an external video / audio output device, outputs analog video / audio signals to an external video / audio input device, and the like. The USB interface connects to a PC or the like to send and receive data. A HDD may be connected to record broadcast programs and contents. You may also connect a keyboard or other USB device. The memory interface connects a memory card or other memory medium to send and receive data.

The digital interface unit 125 is an interface for outputting or inputting encoded digital video data and / or digital audio data. The digital interface unit 125 can output the MMT data string obtained by demodulation by the tuner / demodulation unit 131, the MMT data string acquired via the LAN communication unit 121, or the mixed data of each MMT data string as it is. It shall be. Further, the MMT data string input from the digital interface unit 125 may be controlled to be input to the separation unit 132. The output of the digital content stored in the storage (storage) unit 110 or the storage of the digital content in the storage (storage) unit 110 may be performed via the digital interface unit 125.

The digital interface unit 125 is a DVI terminal, an HDMI (registered trademark) terminal, a DisplayPort (registered trademark) terminal, or the like, and data is output or input in a format compliant with the DVI specification, HDMI specification, DisplayPort specification, or the like. It may be something. It may be output or input in the form of serial data conforming to the IEEE1394 specifications and the like. Further, it may be configured as an IP interface that outputs a digital interface via hardware such as Ethernet (registered trademark) or wireless LAN. In this case, the digital interface unit 125 and the LAN communication unit 121 may share the hardware configuration.

The operation input unit 170 is an instruction input unit for inputting an operation instruction to the broadcast receiving device 100. In this embodiment, a remote controller receiving unit and a button switch for receiving a command transmitted from a remote controller (not shown) are arranged. It shall consist of operation keys. Only one of them may be used. Further, the operation input unit 170 may be replaced with a touch panel arranged on the monitor unit 162. A keyboard or the like connected to the expansion interface unit 124 may be used instead. The remote controller (not shown) may be replaced with a mobile information terminal 700 having a remote controller command transmission function.

As described above, when the broadcast receiving device 100 is a television receiver or the like, the video output unit 163 and the audio output unit 166 are not essential configurations in the present invention. Further, the broadcast receiving device 100 may be an optical disk drive recorder such as a DVD (Digital Versaille Disc) recorder, a magnetic disk drive recorder such as an HDD recorder, an STB (Set Top Box), or the like, in addition to a television receiver. It may be a PC (Personal Computer), a tablet terminal, a navigation device, a game machine, or the like having a digital broadcast reception function or a broadcast communication cooperation function. When the broadcast receiving device 100 is a DVD recorder, an HDD recorder, an STB, or the like, the monitor unit 162 and the speaker unit 165 may not be provided. By connecting an external monitor and an external speaker to the video output unit 163 and the audio output unit 166 or the digital interface unit 125, the same operation as that of the broadcast receiving device 100 of this embodiment can be performed.

[Software configuration of broadcast receiver]
FIG. 8C is a software configuration diagram of the broadcast receiving device 100 of this embodiment, and shows the software configuration of the ROM 103, the RAM 104, and the storage (storage) unit 110. In this embodiment, the basic operation program 1001 and other operation programs are stored in the ROM 103, and the reception function program 1002, the cooperation function program 1003, the recording / playback function program 1004, and other operations are stored in the storage (storage) unit 110. The program is remembered. In addition, the storage (storage) unit 110 stores a content storage area 1200 for storing contents such as moving images, still images, and sounds, and authentication for storing authentication information required for accessing an external mobile terminal device or each server device. It is assumed to include an information storage area 1300 and various information storage areas for storing various other information.

The basic operation program 1001 stored in the ROM 103 is expanded in the RAM 104, and the main control unit 101 further executes the expanded basic operation program 1001 to form the basic operation execution unit 1101. Further, the reception function program 1002, the cooperation function program 1003, and the recording / playback function program 1004 stored in the storage (storage) unit 110 are also expanded in the RAM 104, and the main control unit 101 further expands the reception function program 1002 and the expanded reception function program 1002. By executing the cooperation function program 1003 and the recording / playback function program 1004, the reception function execution unit 1102, the cooperation function execution unit 1103, and the recording / playback function execution unit 1104 are configured. Further, the RAM 104 is provided with a temporary storage area for temporarily holding the data created at the time of executing each operation program as needed.

In the following, for the sake of simplicity, the main control unit 101 performs a process of controlling each operation block by expanding the basic operation program 1001 stored in the ROM 103 into the RAM 104 and executing the basic operation. It is described as assuming that the unit 1101 controls each operation block. The same description is made for other operation programs.

The reception function execution unit 1102 controls each operation block of the broadcast reception device 100 in order to reproduce components such as video and audio transmitted by the broadcast system of this embodiment. In particular, the transport processing unit 1102a mainly controls the MMT decoder function of the separation unit 132, and distributes the video data string, the audio data string, and the like separated from the MMT data string to the corresponding decoding processing units. The AV decoding processing unit 1102b mainly controls the video decoder 141, the audio decoder 143, and the like. The application processing unit 1102c mainly controls the cache unit 152, the application control unit 153, the browser unit 154, and the sound source unit 156. The character super processing unit 1102d mainly controls the character super decoder 144. The subtitle processing unit 1102e mainly controls the subtitle decoder 145. The general-purpose data processing unit 1102f mainly controls the data decoder 151. The EPG generation unit 1102g interprets the description contents such as MH-EIT included in the MMT-SI and generates the EPG screen. Based on the logical plane structure, the presentation processing unit 1102h includes a video color gamut conversion unit 142, a subtitle synthesis unit 146, a subtitle color gamut conversion unit 147, an application color gamut conversion unit 155, a video synthesis unit 161 and a voice synthesis unit 164. Is mainly controlled.

In addition, the cooperation function execution unit 1103 manages device authentication and connection, transmission / reception of each data, and the like when the broadcast receiving device 100 performs a cooperation operation with an external device such as a mobile information terminal 700. The recording / playback function execution unit 1104 stores the broadcast program acquired from the digital broadcast wave of the main broadcasting system, the content acquired from each server device on the network, and the like in the content storage area 1200 of the storage (storage) unit 110 and the extended interface unit 124. Control is performed when recording to an external storage or the like connected to the above, or when playing back the broadcast program or content.

Each of the operation programs may be stored in the ROM 103 and / or the storage (storage) unit 110 in advance at the time of product shipment. After the product is shipped, it may be acquired from another application server 500 or the like on the Internet 200 via the LAN communication unit 121. Further, each of the operation programs stored in a memory card, an optical disk, or the like may be acquired via the expansion interface unit 124 or the like.

[Broadcasting station server configuration]
FIG. 9 is a block diagram showing an example of the internal configuration of the broadcasting station server 300. The broadcasting station server 300 is composed of a main control unit 301, a system bus 302, a RAM 304, a storage unit 310, a LAN communication unit 321 and a digital broadcasting signal transmission unit 360.

The main control unit 301 is a microprocessor unit that controls the entire broadcasting station server 300 according to a predetermined operation program. The system bus 302 is a data communication path for transmitting and receiving data between the main control unit 301 and each operation block in the broadcasting station server 300. The RAM 304 serves as a work area when each operation program is executed.

The storage unit 310 stores the basic operation program 3001, the broadcast content management / distribution program 3002, and the broadcast content transmission program 3003, and further includes a broadcast content storage area 3200 and a metadata storage area 3300. The broadcast content storage area 3200 stores program contents and the like of each broadcast program broadcast by the broadcasting station. The metadata storage area 3300 stores metadata such as a program title, a program ID, a program outline, a performer, a broadcast date and time, and copy control information related to each program content of each broadcast program.

Further, the basic operation program 3001 stored in the storage unit 310, the broadcast content management / distribution program 3002, and the broadcast content transmission program 3003 are each expanded in the RAM 304, and the main control unit 301 further executes each of the expanded programs. As a result, the basic operation execution unit 3101, the broadcast content management / distribution execution unit 3102, and the broadcast content transmission execution unit 3103 are configured.

In the following, in order to simplify the explanation, the main control unit 301 controls each operation block by expanding and executing the basic operation program 3001 stored in the storage unit 310 in the RAM 304. It is described as assuming that the operation execution unit 3101 controls each operation block. The same description is made for other operation programs.

The broadcast content management / distribution execution unit 3102 manages the program content and the like of each broadcast program and each metadata stored in the broadcast content storage area 3200 and the metadata storage area 3300, and the program content and the like of each broadcast program and each. Controls the provision of metadata to service providers based on contracts. Further, when the broadcast content management / distribution execution unit 3102 provides the program content and the like of each broadcast program and each metadata to the service provider, the service provider based on the contract is required. The authentication process of the server 400 may be performed.

The broadcast content transmission execution unit 3103 stores the program content of the broadcast program stored in the broadcast content storage area 3200, the program title of the broadcast program stored in the metadata storage area 3300, the program ID, the copy control information of the program content, and the like. Time schedule management and the like when transmitting the included MMT data string from the radio tower 300t via the digital broadcast signal transmission unit 360 is performed.

The LAN communication unit 321 is connected to the Internet 200 and communicates with the service provider server 400 or the like on the Internet 200. The LAN communication unit 321 is provided with a coding circuit, a decoding circuit, and the like. The digital broadcast signal transmission unit 360 modulates an MMT data string composed of a video data string, an audio data string, a program information data string, etc. of the program content of each broadcast program stored in the broadcast content storage area 3200. , It is transmitted as a digital broadcast wave via the radio tower 300t.

[Service provider server configuration]
FIG. 10 is a block diagram showing an example of the internal configuration of the service provider server 400. The service provider server 400 is composed of a main control unit 401, a system bus 402, a RAM 404, a storage unit 410, and a LAN communication unit 421.

The main control unit 401 is a microprocessor unit that controls the entire service provider server 400 according to a predetermined operation program. The system bus 402 is a data communication path for transmitting and receiving data between the main control unit 401 and each operation block in the service provider server 400. The RAM 404 serves as a work area when each operation program is executed.

The storage unit 410 stores the basic operation program 4001, the video content management / distribution program 4002, and the application management / distribution program 4004, and further stores the video content storage area 4200, the metadata storage area 4300, the application storage area 4400, and the user information storage. A region 4500 is provided. The video content storage area 4200 stores the program content of the broadcast program provided by the broadcasting station server 300 as video content. It also stores video content and the like produced by the service provider. The metadata storage area 4300 stores each metadata provided by the broadcasting station server 300, metadata related to the video content produced by the service provider, and the like. The application storage area 4400 stores various applications for realizing a service linked to a broadcast program for distribution in response to a request from each television receiver. The user information storage area 4500 stores information (personal information, authentication information, etc.) about a user who is permitted to access the service provider server 400.

Further, the basic operation program 4001 and the video content management / distribution program 4002 and the application management / distribution program 4004 stored in the storage unit 410 are expanded in the RAM 404, respectively, and the main control unit 401 further expands the expanded basic operation program and the video. By executing the content management / distribution program and the application management / distribution program, the basic operation execution unit 4101, the video content management / distribution execution unit 4102, and the application management / distribution execution unit 4104 are configured.

In the following, in order to simplify the explanation, the main control unit 401 controls each operation block by expanding and executing the basic operation program 4001 stored in the storage unit 410 in the RAM 404. It is described as assuming that the operation execution unit 4101 controls each operation block. The same description is made for other operation programs.

The video content management / distribution execution unit 4102 acquires the program content and metadata of the broadcast program from the broadcasting station server 300, the video content and the like stored in the video content storage area 4200 and the metadata storage area 4300, and each metadata. And control the distribution of the video content and each metadata to each TV receiver. Further, the video content management / distribution execution unit 4102 performs authentication processing of each TV receiver and the like as necessary when distributing the video content and the metadata to each TV receiver. You may go. Further, the application management / distribution execution unit 4104 manages each application stored in the application storage area 4400 and controls when the application is distributed in response to a request from each television receiver. Further, the application management / distribution execution unit 4104 may perform authentication processing of each television receiver as necessary when distributing each application to the television receivers.

The LAN communication unit 421 is connected to the Internet 200 and communicates with the broadcast receiving device 100 via the broadcasting station server 300 on the Internet 200 and the router device 200r. The LAN communication unit 421 shall include a coding circuit, a decoding circuit, and the like.

[Hardware configuration of mobile information terminal]
FIG. 11A is a block diagram showing an example of the internal configuration of the mobile information terminal 700. The mobile information terminal 700 includes a main control unit 701, a system bus 702, a ROM 703, a RAM 704, a storage unit 710, a communication processing unit 720, an expansion interface unit 724, an operation unit 730, an image processing unit 740, a voice processing unit 750, and a sensor unit 760. Consists of ,.

The main control unit 701 is a microprocessor unit that controls the entire mobile information terminal 700 according to a predetermined operation program. The system bus 702 is a data communication path for transmitting and receiving data between the main control unit 701 and each operation block in the personal digital assistant 700.

The ROM 703 is a memory in which a basic operation program such as an operating system and other operation programs are stored, and a rewritable ROM such as an EEPROM or a flash ROM is used. The RAM 704 serves as a work area when executing a basic operation program and other operation programs. The ROM 703 and the RAM 704 may be integrated with the main control unit 701. Further, the ROM 703 may not have an independent configuration as shown in FIG. 11A, but may use a partial storage area in the storage unit 710.

The storage unit 710 stores the operation program and operation setting value of the mobile information terminal 700, the personal information of the user of the mobile information terminal 700, and the like. In addition, an operation program downloaded via the Internet 200 and various data created by the operation program can be stored. In addition, contents such as moving images, still images, and sounds downloaded via the Internet 200 can also be stored. A part of the function of the ROM 703 may be replaced by a part of the storage unit 710. Further, the storage unit 710 needs to hold the stored information even when the mobile information terminal 700 is not supplied with power from the outside. Therefore, for example, a device such as a non-volatile semiconductor element memory such as a flash ROM or SSD, a magnetic disk drive such as an HDD, or the like is used.

It is assumed that each of the operation programs stored in the ROM 703 and the storage unit 710 can be added, updated, and expanded in function by a download process from each server device on the Internet 200.

The communication processing unit 720 is composed of a LAN communication unit 721, a mobile telephone network communication unit 722, and an NFC communication unit 723. The LAN communication unit 721 is connected to the Internet 200 via the router device 200r and the access point 200a, and transmits / receives data to / from each server device and other communication devices on the Internet 200. The connection with the router device 200r and the access point 200a shall be made by wireless connection such as Wi-Fi (registered trademark). The mobile telephone network communication unit 722 performs telephone communication (call) and data transmission / reception by wireless communication with the base station 600b of the mobile telephone network. The NFC communication unit 723 performs wireless communication when it is in close proximity to the corresponding reader / writer. The LAN communication unit 721, the mobile telephone network communication unit 722, and the NFC communication unit 723 shall each include a code circuit, a decoding circuit, an antenna, and the like. Further, the communication processing unit 720 may further include other communication units such as a Bluetooth (registered trademark) communication unit and an infrared communication unit.

The expansion interface unit 724 is a group of interfaces for expanding the functions of the mobile information terminal 700, and in this embodiment, it is composed of a video / audio interface, a USB interface, a memory interface, and the like. The video / audio interface inputs video / audio signals from an external video / audio output device, outputs video / audio signals to an external video / audio input device, and the like. The USB interface connects to a PC or the like to send and receive data. You may also connect a keyboard or other USB device. The memory interface connects a memory card or other memory medium to send and receive data.

The operation unit 730 is an instruction input unit for inputting operation instructions to the mobile information terminal 700. In this embodiment, the operation unit 730 is composed of a touch panel 730t arranged on the display unit 741 and an operation key 730k in which button switches are arranged. It shall be. Only one of them may be used. The mobile information terminal 700 may be operated by using a keyboard or the like connected to the extended interface unit 724. The mobile information terminal 700 may be operated by using a separate terminal device connected by wired communication or wireless communication. That is, the mobile information terminal 700 may be operated from the broadcast receiving device 100. Further, the touch panel function may be provided in the display unit 741.

The image processing unit 740 includes a display unit 741, an image signal processing unit 742, a first image input unit 743, and a second image input unit 744. The display unit 741 is a display device such as a liquid crystal panel, and provides the image data processed by the image signal processing unit 742 to the user of the mobile information terminal 700. The image signal processing unit 742 includes a video RAM (not shown), and the display unit 741 is driven based on the image data input to the video RAM. Further, the image signal processing unit 742 shall have a function of performing format conversion, menu and other OSD (On Screen Display) signal superimposition processing, etc., as necessary. The first image input unit 743 and the second image input unit 744 convert the light input from the lens into an electric signal by using an electronic device such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Sensor) sensor. , A camera unit that inputs image data of surroundings and objects.

The voice processing unit 750 is composed of a voice output unit 751, a voice signal processing unit 752, and a voice input unit 753. The voice output unit 751 is a speaker, and provides the user of the mobile information terminal 700 with the voice signal processed by the voice signal processing unit 752. The voice input unit 753 is a microphone, which converts a user's voice or the like into voice data and inputs it.

The sensor unit 760 is a group of sensors for detecting the state of the portable information terminal 700. In this embodiment, the GPS receiver unit 761, the gyro sensor 762, the geomagnetic sensor 763, the acceleration sensor 764, the illuminance sensor 765, and the proximity sensor 766. Consists of ,. With these sensor groups, it is possible to detect the position, tilt, direction, movement, ambient brightness, proximity status of surrounding objects, and the like of the portable information terminal 700. Further, the portable information terminal 700 may further include other sensors such as a barometric pressure sensor.

The mobile information terminal 700 may be a mobile phone, a smart phone, a tablet terminal, or the like. It may be a PDA (Personal Digital Assistants) or a notebook PC. Further, it may be a digital still camera, a video camera capable of shooting a moving image, a portable game machine, a navigation device, or other portable digital device.

The configuration example of the mobile information terminal 700 shown in FIG. 11A includes many configurations that are not essential to this embodiment, such as the sensor unit 760, but the present embodiment even if the configuration is not provided with these. Does not impair the effect of. Further, configurations (not shown) such as a digital broadcast reception function and an electronic money payment function may be further added.

[Software configuration of mobile information terminal]
FIG. 11B is a software configuration diagram of the mobile information terminal 700 of this embodiment, and shows the software configuration of the ROM 703, the RAM 704, and the storage unit 710. In this embodiment, the basic operation program 7001 and other operation programs are stored in the ROM 703, and the cooperation control program 7002 and other operation programs are stored in the storage unit 710. Further, the storage unit 710 includes a content storage area 7200 for storing contents such as moving images, still images, and sounds, and an authentication information storage area 7300 for storing authentication information and the like required for accessing a TV receiver and each server device. It shall be provided with various information storage areas for storing various other information.

The basic operation program 7001 stored in the ROM 703 is expanded in the RAM 704, and the main control unit 701 further executes the expanded basic operation program to form the basic operation execution unit 7101. Further, the cooperation control program 7002 stored in the storage unit 710 is also expanded in the RAM 704, and the main control unit 701 further executes the expanded cooperation control program to form the cooperation control execution unit 7102. Further, the RAM 704 is provided with a temporary storage area for temporarily holding the data created at the time of executing each operation program as needed.

In the following, for the sake of simplicity, the main control unit 701 performs a process of controlling each operation block by expanding the basic operation program 7001 stored in the ROM 703 into the RAM 704 and executing the basic operation. It is described as assuming that the unit 7101 controls each operation block. The same description is made for other operation programs.

The cooperation control execution unit 7102 manages device authentication and connection, transmission / reception of each data, and the like when the mobile information terminal 700 performs a cooperation operation with the television receiver. Further, the cooperation control execution unit 7102 is provided with a browser engine function for executing an application linked with the television receiver.

Each of the operation programs may be stored in the ROM 703 and / or the storage unit 710 in advance at the time of product shipment. After the product is shipped, it may be acquired from another application server 500 or the like on the Internet 200 via the LAN communication unit 721 or the mobile telephone network communication unit 722. Further, each of the operation programs stored in a memory card, an optical disk, or the like may be acquired via the expansion interface unit 724 or the like.

[Time management of broadcast receiver]
The broadcast receiving device 100 of this embodiment has two types of time management functions. The first time management function is a time management function based on NTP, and the second time management function is a time management function based on MH-TOT. Hereinafter, the two types of time management functions will be described.

<Time management function based on NTP>
First, the time management function based on NTP will be described.

FIG. 12A is an example of a system configuration for clock synchronization / presentation synchronization in the broadcasting system supported by the broadcasting receiving device 100 of this embodiment. In the broadcasting system of this embodiment, the UTC is transmitted from the broadcasting transmitting system to a receiver (such as the broadcasting receiving device 100 of this embodiment) in a 64-bit length NTP time stamp format. In the NTP time stamp format, "more than a second" of UTC is represented by 32 bits, and "less than a second" is represented by 32 bits. However, in reality, it is difficult to reproduce one second with 32-bit accuracy. Therefore, the system clock for synchronizing the video system and the system clock for operating the NTP format clock are, for example, "2 to the 24th power" Hz (about 16.8 MHz) as shown in the figure. The frequency of may be used. Considering that the system clock in the conventional broadcasting system was 27 MHz and that the hardware configuration of the receiver can be easily constructed, 2 of about "2 to the 24th power" to "2 to the 28th power". It is desirable to use the power frequency as the system clock.

When the system clock is set to a power frequency of 2 such as "2 to the 24th power" to "2 to the 28th power" as described above on the broadcast transmission system side or the receiver side, it is received from the broadcast transmission system side. In the NTP time stamp format transmitted to the machine side, the lower 8 to 4 bits that are not referred to by the PLL (Phase Locked Loop) system for reproducing the system clock or the NTP format clock are "0" or "1". It may be fixed to. That is, if the system clock is "2 to the nth power" Hz (n = 24 in the example of FIG. 12A, the same applies hereinafter), the lower "32-n" bit in the NTP time stamp format is changed to "0" or "1". It may be fixed. Alternatively, the receiver may perform processing so as to ignore the lower "32-n" bits of the NTP time stamp format.

On the broadcast transmission system side, when the time information in NTP format is obtained from the outside, a PLL system is configured with a 32 + n-bit counter by a VCO (Voltage Controlled Oscillator) of "2 to the nth power" Hz, and the time information given from the outside is used. Realize a synchronous sending system clock. In addition, the entire signal processing system is operated in synchronization with the system clock of "2 to the nth power" Hz. Further, the output of the transmission system clock is periodically transmitted to the receiver side via the broadcast transmission line as NTP length format time information. As for the time information in the NTP length format to be transmitted to the receiver side, the lower "32-n" bit among the 32 bits representing "less than a second" may be fixed to "0" or "1". That is, the system clock counter on the broadcast transmission system side is composed of 32 + n bits.

The receiver side receives the time information in the NTP length format via the broadcast transmission line, and reproduces the reception system clock by the PLL system based on the VCO of "2 to the nth power" Hz as in the broadcast transmission system side. As a result, the receiving system clock becomes a clock synchronized with the broadcasting transmitting system side. In addition, by operating the signal processing system of the receiver in synchronization with the system clock of "2 to the nth power" Hz, clock synchronization between the broadcast transmission system side and the receiver side is realized, and stable signal reproduction is possible. Become.

Further, the decoding time and the presentation time for each presentation unit of the video / audio signal are set on the broadcast transmission system side based on the time information in the NTP format. The decoding time is specified by an MPU extended time stamp descriptor (not shown) stored in the MPT. Further, the presentation time is specified by the MPU time stamp descriptor (see FIG. 7D) stored in the MPT. The "mpu_sequence_number (MPU sequence number)" parameter in the MPU time stamp descriptor indicates the sequence number of the MPU that describes the time stamp, and the "mpu_presentation_time (MPU presentation time)" parameter indicates the MPU presentation time as a 64-bit NTP time stamp. Shown in format. That is, the receiver can control the presentation (display, output, etc.) timing of each MPU such as video / audio signals, subtitles, and character superimpose by referring to the MPU time stamp descriptor stored in the MPT. Become.

When focusing on the decoding timing and the control of the presentation timing for each presentation unit of the above-mentioned video / audio signal, the video / audio signal is synchronized even with a clock of about "2 to the 16th power" Hz (about 65.5 KHz). Can be secured, and in this case, the lower 16 bits of the NTP time stamp format described in the MPU time stamp descriptor or the like need not be referred to. That is, when a "2 mth" Hz clock generated by dividing the system clock or the like is used to control the decoding timing and the presentation timing, it is lower than the NTP time stamp format described in the MPU time stamp descriptor or the like. The "32-m" bit does not have to be referenced. Therefore, the lower "32-m" bit of the NTP time stamp format described in the MPU time stamp descriptor or the like may be fixed to "0" or "1".

<Time management function based on MH-TOT>
FIG. 12B shows an example of the configuration of time information transmitted in the NTP format in the NTP-based time management function described above. The "reference_time stamp" parameter, "transmit_time stamp" parameter, etc. in the NTP format are time data in the NTP length format of 64 bits in length, and the "mpu_presentation_time" parameter in the MPU time stamp descriptor shown in FIG. 7D is also 64 bits in length. This is the time data in the NTP time stamp format. The time data in the NTP length format and the time data in the NTP time stamp format are data in which "more than a second" of UTC is represented by 32 bits and "less than a second" is represented by 32 bits. That is, the time information in the NTP format can transmit the time information up to "less than a second". Furthermore, since the time information in the NTP format is expressed in UTC, unlike the time management in the conventional digital broadcasting, as shown in FIG. 3, the time information is distributed via the data flow transmitted via the broadcasting transmission line and the communication line. By managing both of the data flows in the NTP format time information, the data of both can be easily matched.

On the other hand, the time information transmitted by MH-TOT is as follows.

FIG. 12C shows an example of the data structure of MH-TOT. The broadcast receiving device 100 of this embodiment can acquire the current date and the current time from the "JST_time" parameter of the MH-TOT. As shown in FIG. 12D, the "JST_time" parameter has the lower 16 bits of the coded data of the current date by the modified Julian Date (MJD) and the Japanese standard time (Japan Standard Time: JST) of 6 4 4 bits. It shall include 24-bit information expressed in Bit Binary Coded Decimal (BCD). The current date can be calculated by performing a predetermined operation on the 16-bit coded data of the MJD. The six 4-bit binary decimal numbers represent "hours" in two decimal digits by the first two 4-bit binary decimal numbers, and 10 by the next two 4-bit binary decimal numbers. The last two 4-bit 2-evolved decimal numbers represent "minutes" in two decimal digits, and the last two 4-bit binary decimal numbers represent "seconds" in two decimal digits.

That is, the difference between the time management based on the NTP format and the time management based on the MH-TOT is that the time management based on the former NTP format can transmit time information up to "less than a second" as described above. In the latter time management based on MH-TOT, only the time information up to the "second unit" in JST notation can be transmitted.

The broadcast receiving device 100 of the present embodiment uses the time management function based on NTP, which is the time information in UTC notation, to decode and display the video, audio, subtitles, character super, and other presented data which are the contents of the broadcast signal. By using the above, more accurate synchronization processing can be realized. Furthermore, by referring to the information in the UTC notation instead of the clock notation of the broadcasting station, the video, audio, subtitles, character supermarket, or other data that is the content received in the broadcast signal, and the video and audio acquired through the communication line route. , Subtitles, character supervision, or other data decoding and display synchronization processing can also be performed.

Further, in the broadcast receiving device 100 of this embodiment, a time management function based on "JST_time" including 24-bit information represented by 6 4-bit binary coded decimal numbers of MH-TOT is provided to the user at the current time. It may be used for the presentation process or each process for handling the MH-EIT shown in FIG. 7E. In general, in the process of presenting the current time to the user in the broadcast receiving device, accuracy of less than a second is rarely required. Further, each time information described in the MH-EIT is 24-bit information represented by 6 4-bit binary coded decimal numbers, similar to the EIT of the conventional digital broadcasting transmitted by the MPEG2-TS method. It is stored in "hours", "minutes", and "seconds" in two decimal digits. Therefore, the time management function based on MH-TOT in the broadcast receiving device 100 of this embodiment is easy to match with each process handling MH-EIT. Specifically, each process that handles MH-EIT includes, for example, an electronic program guide generation process, a control of recording reservation and viewing reservation, and a copyright management process such as temporary storage. This is because accuracy of less than seconds is rarely required for any of the processes, and accuracy in units of 1 second is sufficient.

In addition, the generation process of the electronic program guide, control of recording reservation and viewing reservation, copyright management processing such as temporary storage, etc. are functions that are also installed in the receiver of the digital broadcasting system using the conventional MPEG2-TS method. Is. Then, also in the broadcasting system of this embodiment, in the processing such as the generation processing of the electronic program guide, the control of recording reservation and viewing reservation, and the copyright management processing such as temporary storage, the conventional MPEG2-TS system digital broadcasting system If it is configured so that it can be handled by time management processing that is consistent with the above, a broadcast receiving device having both a conventional MPEG2-TS digital broadcast receiving function and an MMT digital broadcast receiving function can be configured. In these processes (processing such as electronic program guide generation processing, recording reservation and viewing reservation control, copyright management processing such as temporary storage), it is not necessary to design processing algorithms separately, which is costly. Can be lowered.

Further, even if the receiver does not have the conventional MPEG2-TS system digital broadcast reception function but only the MMT system digital broadcast reception function, it can generate an electronic program guide and control recording reservation and viewing reservation. , Because it is possible to divert the algorithm of the function installed in the receiver of the digital broadcasting system using the conventional MPEG2-TS method without creating a completely new processing algorithm such as copyright management processing such as temporary storage. , Can be developed at lower cost.

Therefore, the time management function based on the "JST_time" parameter of MH-TOT is used for these processes (processing such as generation process of electronic program guide, control of recording reservation and viewing reservation, copyright management process such as temporary storage). With the configuration, even an MMT type digital broadcast broadcast receiving device can be provided at a lower cost by improving the consistency with the conventional type broadcast system.

As described above, the broadcast receiving device 100 of this embodiment includes a time management function using two types of time information having different accuracy. That is, the first time information is notation time information consistent with the conventional digital broadcasting system, and the second time information is time information having a higher resolution than the first time information. By using the second time information for the synchronization processing of each content data of the broadcasting signal, more advanced information presentation processing than the conventional broadcasting system is realized, and the first time information is used for the generation processing of the electronic program guide and the recording reservation. Broadcast reception devices can be provided at low cost by using them for control of viewing reservations, copyright management processing such as temporary storage, and the like.

Therefore, the broadcast receiving device 100 of the present embodiment can achieve both the realization of more advanced information presentation processing and the cost reduction by providing the two types of time management functions described above.

[First variant of time management]
Next, a first modification of time management in the broadcasting system of this embodiment will be described below.

In the first modification, in order to improve the accuracy of the management time of the NTP-based time management function already described with reference to FIG. 12A, the time management server (not shown) or the broadcasting station server 300 to the broadcasting receiving device 100 Information on the estimated delay time in the time information transmission of the above is included in the broadcast signal and transmitted, and the broadcast receiving device 100 is configured to use the information on the estimated delay time to correct the system clock of the time management function based on NTP. Is also good.

At this time, the information regarding the assumed delay time is not in the TLV multiplexing stream of the protocol stack in the broadcast transmission line shown in FIG. 3A, but in the TMCC (Transmission and Multiplexing Control) region outside the TLV multiplexing stream. It may be configured to transmit. If the transmission is performed within the TMCC region, the broadcast receiving device 100 can extract the information regarding the estimated delay time without going through the separation processing (demax processing) of the TLV multiplexed stream. That is, it is possible to acquire information that is not easily affected by the delay due to the separation process in the broadcast receiving device 100, and therefore, it is possible to perform a highly accurate correction process of the system clock. An example of the data structure of the time information transmitted by the TMCC signal will be described with reference to FIG. 12E. The time information may be stored in the TMCC extended information area and transmitted, for example. In the time information of the TMCC extended information area shown in the figure, the "delta" parameter sets the estimated value of the transmission delay from the time management server that distributes UTC or the server device that creates TMCC signals to a general broadcast receiving device. Represented by a 32-bit signed fixed-point. The upper 16 bits describe the integer part, and the lower 16 bits describe the decimal point. The "transmit_timestamp" parameter is a transmission time stamp, and describes the time when the TMCC signal is transmitted from the server device in the NTP time stamp length format. The upper 32 bits represent the integer part, and the lower 32 bits represent the decimal point.

In the first modification, the broadcast receiving device 100 of the present embodiment stores the information related to the estimated delay time described in the time information transmitted in the TMCC extended information area (for example, the above-mentioned "delta"). The system clock of the NTP-based time management function used for the synchronization processing of each content data of the broadcast signal can be corrected with higher accuracy by using the parameter and / or the "transmission_time stamp" parameter).

[Second variant of time management]
Next, a second modification of time management in the broadcasting system of this embodiment will be described below.

As described above, the broadcast receiving device 100 of the present embodiment has a time management function of acquiring the current date and the Japanese standard time from the information transmitted by the MH-TOT and managing the time. The current date and the Japanese standard time acquired from the information transmitted by the MH-TOT are superimposed on the video information, application information, etc. by the video synthesis unit 161 of the broadcast receiving device 100, and thereby on the monitor unit 162 and the video output unit 163. It can be output and provided to the user. As described above, the MH-TOT has the data structure shown in FIG. 12C, and the broadcast receiving device 100 can acquire the current date and the current time from the “JST_time” parameter of the MH-TOT.

However, since only the lower 16 bits of the MJD encoded data are used in the above-mentioned "JST_time" parameter, digit overflow will occur on "April 22, 2038", and the predetermined calculation will occur. It is not possible to express the date after "April 23, 2038" by itself. Therefore, in the second modification of this embodiment, the date after "April 23, 2038" is expressed by switching the calculation method between the case where the value of MJD is equal to or more than the predetermined value and the case where the value is less than the predetermined value. It shall be controlled so that it can be done.

FIG. 12F shows an example of a first calculation method used when the value of MJD is equal to or more than a predetermined value and a second calculation method used when the value of MJD is less than a predetermined value. For example, when the predetermined value is "32768 (0x8000)", the current date is calculated using the first calculation method when the MJD is "32768" or more, and when the MJD is less than "32768". Calculates the current date using the second calculation method. The case where the MJD is less than "32768" is equivalent to the case where the most significant bit of the 16-bit data of the MJD is "0". As a result, in the broadcast receiving device 100 of this embodiment, it is possible to express the date after "April 23, 2038". However, the predetermined value can be arbitrarily set, and the predetermined value may be set as "16384 (0x4000)", "49152 (0xC000)", or the like. The switching condition of the calculation method may be that the upper 2 bits of the 16-bit data of the MJD are "00" and the upper 2 bits of the 16-bit data of the MJD are not "11". If the above-mentioned means is used with the predetermined value set to "32768", the date before "September 4, 1948" cannot be expressed, but there is no particular problem in practical use as a television receiver. ..

Further, instead of switching between the first calculation method and the second calculation method according to the comparison result between the MJD and the predetermined value, the "reserved" parameter in the MH-TOT data structure shown in FIG. 12C The first calculation method and the second calculation method may be switched according to a flag in which a part or all is replaced or a newly added flag. For example, the flag is set to "1" if the most significant bit of the 16-bit encoded data of the MJD is "0" and the MJD indicates "April 23, 2038" or later. However, if it does not indicate "April 23, 2038" or later, "0" may be set. Then, when the flag is "1", the second calculation method shown in FIG. 12F may be used, and when the flag is "0", the first calculation method may be used. Alternatively, a new descriptor having the same meaning as the flag may be newly prepared and placed in the MH-TOT.

Further, in the broadcasting system of this embodiment, as described above, the absolute time in NTP format is transmitted, and the broadcasting receiving device 100 of this embodiment has a time management function based on the NTP. Further, in the broadcast receiving device 100 of the present embodiment, the decoding timing and presentation for each presentation unit of the video / audio signal are referred to by referring to the NTP time stamp or the like described in the MPU time stamp descriptor set for each MPU unit. The timing is controlled. As described above, the NTP format time information has the configuration shown in FIG. 12B. Further, the MPU time stamp descriptor has the configuration shown in FIG. 7D.

Therefore, in the broadcast receiving device 100 of the present embodiment, the "reference_time stamp" parameter, the "transmit_time stamp" parameter, the "mpu_presentation_time" parameter, and the like are referred to, and the first You may choose whether to use one calculation method or the second calculation method. That is, for example, when the most significant bit of the 64-bit length NTP length format time data is "0", the second calculation method is used, and when it is not "0", the first calculation method is used. And so on.

By any of the above methods, the broadcast receiving device 100 of the present embodiment can express the date after "April 23, 2038".

[Broadcast receiver channel selection process (initial scan)]
The AMT of the broadcasting system of this embodiment provides a list of multicast groups of IP packets for receiving IP packets transmitted by the TLV multiplexing method as indistinguishably as possible from IP packets transmitted on a communication line. It shall be. A plurality of IP multicast groups can be listed for one service identification. In addition, an address mask can be used to efficiently describe consecutive IP addresses.

In the broadcast receiving device 100 of this embodiment, a list of services acquired from TLV-NIT at the time of channel scanning at the time of initial setting or at the time of rescanning for setting change is displayed in a non-volatile memory such as ROM 103 or storage unit 110. In addition, it is possible to store a list of IP multicast groups corresponding to the respective services as IP-related information in the non-volatile memory in association with the respective services. To do. By storing the list of services and IP-related information in the non-volatile memory so that they can be referred to at all times, it is not necessary to reacquire TLV-NIT and AMT when switching channels, etc., and the acquisition of broadcast contents is efficient. It becomes possible to do.

FIG. 13A is a diagram showing an example of an operation sequence at the time of channel scan (rescan) in the broadcast receiving device 100 of this embodiment.

When the channel scan is started, the reception function execution unit 1102 instructs the tuner / demodulation unit 131 to set the frequency initial value and tune to the frequency value (S101). When the tuner / demodulation unit 131 succeeds in locking to the set frequency value (S102: Yes), the reception function execution unit 1102 then acquires the TLV-NIT from the received signal (S103).

When the TLV-NIT acquired in the process of S103 is valid data (S104: Yes), the reception function executing unit 1102 acquires information such as the TLV stream ID and the original network ID from the acquired TLV-NIT. (S105). FIG. 13B shows an example of the data structure of TLV-NIT. It is assumed that the TLV stream ID information can be obtained from the "tlv_stream_id" parameter, and the original network ID information can be obtained from the "original_network_id" parameter. Further, the distribution system information regarding the physical conditions of the broadcast transmission line corresponding to each TLV stream ID / original network ID is acquired from the distribution system descriptor (S106), and the list of service IDs is acquired from the service list descriptor (S106). S107).

FIG. 13C shows an example of the data structure of the satellite distribution system descriptor. FIG. 13D shows an example of the data structure of the service list descriptor. If the TLV-NIT has a plurality of different data such as the TLV stream ID, the original network ID, the distribution system information, the list of service IDs, and the like, the processes of S105 to S107 are repeated. Next, the reception function execution unit 1102 creates a service list based on data such as the TLV stream ID, the original network ID, the distribution system information, and the list of service IDs acquired in the processes of S105 to S107, and the service list is created. The service list is stored in the ROM 103, the storage unit 110, or the like (updated at the time of rescanning) (S108).

Next, the reception function execution unit 1102 acquires the AMT from the received signal (S109), and further acquires a list of IP multicast groups related to each service ID stored in the service list (S110). FIG. 13E shows an example of the data structure of AMT. If the AMT has a list of IP multicast groups related to a plurality of service IDs, the process of S110 is repeated. When there are a plurality of AMTs having a list of IP multicast groups related to different service IDs, the processes of S109 to S110 are repeated. Next, the reception function execution unit 1102 stores the list of IP multicast groups acquired in the process of S110 as IP-related information in the ROM 103, the storage unit 110, or the like in association with the service ID (updated at the time of rescanning). (S111).

When the tuner / demodulation unit 131 does not succeed in locking to the set frequency value in the processing of S102 (S102: No), and the TLV-NIT acquired in the processing of S103 is not valid data. In the case (S104: No), the processing of S105 to S111 is not performed.

When the process of S111 is completed, the reception function execution unit 1102 ends the process if the frequency value set in the tuner / demodulation unit 131 is the final frequency value of the channel scan range (S112: Yes). On the other hand, if the set frequency value is not the final frequency value of the channel scan range (S112: No), the frequency value set in the tuner / demodulation unit 131 is increased (S113), and the processes of S102 to S111 are performed. repeat. If one TLV-NIT can acquire service IDs related to all services constituting the broadcasting network, and can further acquire an AMT having a list of IP multicast groups related to the service IDs, S112 to S113. No processing is required.

By the series of processes described above, the broadcast receiving device 100 of the present embodiment has a list of services (service list) constituting the broadcast network at the time of channel scanning at the time of initial setting or at the time of rescanning for setting change. At the same time as the creation / update, the list of IP multicast groups (IP-related information) corresponding to each service can be created / updated and further stored in a non-volatile memory such as the ROM 103 or the storage unit 110.

The rescan for changing the setting is automatically performed when it is detected that the information in the table has changed by referring to the "version_number" parameter of TLV-NIT or AMT. You may. When a change in one of the "version_number" parameters of TLV-NIT and AMT is detected, only the information about the table in which the change in the parameter is detected may be automatically updated. However, when the above-mentioned automatic update is performed, it is desirable to notify the user that the rescan is automatically performed. Further, the user may be notified that the information in the table has changed, and the user may be allowed to select whether or not to perform the rescan.

[Broadcast receiver channel selection process (channel switching)]
FIG. 14A is a diagram showing an example of an operation sequence at the time of channel selection (channel switching) in the broadcast receiving device 100 of this embodiment.

When the user operates a remote controller or the like (not shown) to instruct channel switching, the reception function execution unit 1102 interprets the command transmitted from the remote controller and specifies the service ID of the target service (S201). Next, the reception function execution unit 1102 starts acquiring AMT from the reception signal of the tuner / demodulation unit 131. When the acquisition of the AMT is successful within a predetermined time (S202: Yes), the information regarding the list of IP multicast groups corresponding to the service ID is acquired from the acquired AMT (S204). On the other hand, if the acquisition of AMT is not successful within a predetermined time (S202: No), the IP corresponding to the service ID can be obtained by referring to the IP-related information stored in the ROM 103 or the storage unit 110 (S203). Acquire information about the list of multicast groups (S204). Note that the IP-related information stored in the ROM 103, the storage unit 110, or the like may always be referred to without performing the determination process of S202.

Next, the reception function execution unit 1102 starts acquiring the TLV-NIT from the reception signal of the tuner / demodulation unit 131. When the acquisition of the TLV-NIT is successful within a predetermined time (S205: Yes), the distribution system information for acquiring the IP data flow corresponding to the service ID is acquired from the acquired TLV-NIT (S207). On the other hand, when the acquisition of the TLV-NIT is not successful within a predetermined time (S205: No), the service ID is supported by referring to the service list stored in the ROM 103 or the storage unit 110 (S206). The distribution system information for acquiring the IP data flow is acquired (S207). It should be noted that the determination process of S205 may not be performed, and the service list stored in the ROM 103, the storage unit 110, or the like may always be referred to.

When the distribution system information is acquired in the process of S207, the reception function execution unit 1102 then controls the tuner / demodulation unit 131 with the frequency value indicated by the acquired distribution system information, and the service ID. The IP data flow corresponding to (S208) is received, the MMT data string is extracted from the received IP data flow, and the data flow is output to the separation unit 132.

In the separation unit 132, the transport processing unit 1102a acquires an MMTP packet having a packet ID of “0” from the input MMT data string (S209), and further acquires an MPT included in the acquired MMTP packet. (S210). Next, the transport processing unit 1102a refers to the “MMT_package_id_byte” parameter possessed by the acquired MPT, and confirms whether or not the lower 16 bits of the “MMT_package_id_byte” parameter have the same value as the service ID. In an example of the MPT data structure shown in FIG. 7B, when the lower 16 bits of the “MMT_packet_id_byte” parameter have the same value as the service ID (S211: Yes), the MMTP packet having the packet ID “0” is It is determined that the MMTP packet has the data of the program corresponding to the service ID, and the process proceeds to the acquisition process of the MFU based on the information possessed by the acquired MPT.

On the other hand, when the lower 16 bits of the "MMT_packet_id_byte" parameter are not the same value as the service ID (S211: No), the MMTP packet having the packet ID "0" has the program data corresponding to the service ID. Judge that it is not a packet. In this case, the transport processing unit 1102a acquires the PLT again (S212), and by confirming the acquired PLT, the packet ID of the MMTP packet that transmits the MPT having the “MMT_package_id_byte” parameter corresponding to the service ID. Confirm (let's say x) (S213). Further, the transport processing unit 1102a acquires an MMTP packet having a packet ID “x” from the input MMT data string (S214), and acquires an MPT included in the acquired MMTP packet (S215). Further, the MFU acquisition process is started based on the acquired information of the MPT.

It should be noted that the processing of S209 to S211 may not be performed, and the processing of S212 to S215 may always be performed. In this case, when the program data corresponding to the service ID is stored in the MMTP packet other than the packet ID "0", the processing time can be shortened.

Here, the above-mentioned process of identifying the packet ID of the MMTP packet having the data of the program corresponding to the service ID by checking the PLT and acquiring the MPT will be described. An MMTP packet having a packet ID of "0" indicates that a PA message is transmitted. When multiple packages are multiplexed, this PA message includes a PLT (package list table), as shown in FIG. 14B. The PLT has a list of packet IDs of MMTP packets that transmit PA messages including MPTs of other packages, and by checking the PLT, PA messages including MPTs that are entry points of each service from the package IDs. It becomes possible to identify the MMTP packet to be transmitted. FIG. 14C shows an example of the data structure of PLT. It is assumed that the location information for transmitting the PA message of the package indicated by the "MMT_package_id_byte" parameter is specified by "MMT_general_location_info ()".

Returning to the description of the operation sequence shown in FIG. 14A. In the MFU acquisition process, first, the transport processing unit 1102a refers to the MPT acquired in the process of S210 or S215 and acquires the IP address and packet ID of the IP data flow for transmitting the desired MFU (S216). .. Further, the MPU presentation time is obtained from the MPU time stamp descriptor arranged in the MPT, and the MPU layout number is obtained from the MPU presentation area designation descriptor placed in the MPT (S217, S218). The MFU is acquired based on the IP address and packet ID of the acquired IP data flow (S219). Next, encoded video data, coded audio data, and the like are extracted from the acquired MFU, video / audio decoding processing is performed based on the control of the AV decoding processing unit 1102b, and the acquisition is performed under the control of the presentation processing unit 1102h. The presentation process is performed based on the information on the presentation time and the information on the layout control (S220).

If the PLT cannot be acquired in the processing of S212, or if the "MMT_packet_id_byte" parameter that matches the service ID cannot be confirmed in the processing of S213, the MMTP packet whose packet ID is "x" is processed in S215. If the packet ID cannot be acquired, the program output process (that is, the process of S216 to S220) may be performed based on the data of the MMTP packet whose packet ID is "0" acquired in the process of S210. .. Further, in this case, it is preferable to display a message indicating that the program corresponding to the service ID selected by the user could not be displayed.

Through the above series of processes, the broadcast receiving device 100 of this embodiment can execute the channel selection (channel switching) operation. In particular, as described with reference to FIGS. 13A and 14A, a service list and IP-related information are created at the time of channel scanning at the time of initial setting or at the time of rescanning for setting change, and the ROM 103 and the storage unit. By storing it in a non-volatile memory such as 110 so that it can be referred to at all times, and referring to the service list and IP-related information stored in the non-volatile memory such as ROM 103 or the storage unit 110 at the time of channel selection (channel switching), It makes it possible to improve the efficiency of operation during channel selection (channel switching). That is, it is possible to shorten the time from the start of channel selection (channel switching) to the end of channel selection (channel switching) as compared with the case of reacquiring AMT or TLV-NIT at the time of channel selection (channel switching). Become.

[Broadcast receiver remote control key setting process]
FIG. 15A shows an example of the appearance of the remote controller (remote controller) 100R used for inputting operation instructions to the broadcast receiving device 100 of this embodiment. The remote controller 100R includes at least a power key 100R1, a numeric keypad 100R2, a channel up / down key 100R3, a menu key 100R4, an EPG key 100R5, a cursor key 100R6, a decision key 100R7, and a color key 100R8. A volume up / down key, a network switching key, an input switching key, a recording key, a playback key, and the like may be further provided.

For example, in the process of S201 of the operation sequence at the time of channel selection shown in FIG. 14A, when instructing the broadcast receiving device 100 of this embodiment to switch channels by using the remote controller 100R, the following three methods are used. May be used. The first method is a method in which the service ID of a desired channel (service) is directly input and specified by pressing the numeric keypad 100R2 a plurality of times. The second method is a method of sequentially advancing (or reversing) the channels until a desired channel (service) is displayed by repeatedly pressing the channel up / down keys 100R3 as necessary. The third method is a method of performing so-called one-touch channel selection, in which a predetermined channel (service) associated with each key of the numeric keypad 100R2 is called by pressing the numeric keypad 100R2 only once. The one-touch channel selection method, which is the third method, is an easy-to-use channel selection method, but it is necessary to set the association of a predetermined channel (service) to each key of the numeric keypad 100R2 in advance in the broadcast receiving device 100. is there.

The broadcast receiving device 100 corresponding to the broadcasting system of this embodiment can automatically set the association based on the control information included in the digital broadcast wave received by the tuner / demodulation unit 131. And. That is, the broadcasting system of this embodiment prepares a remote control key descriptor as a descriptor of TLV-SI. The association may be set by referring to the remote control key descriptor.

FIG. 15B shows an example of the data structure of the remote control key descriptor. The "service_id" parameter in the figure is the service ID that identifies the channel (service). The "remote_control_key_id" parameter is a recommended value of the remote control button number to which the channel (service) identified by the service ID is assigned. Depending on the value of each of the above parameters, the channel (service) identified by the "service_id" parameter may be associated with the key specified by the value of the "remote_control_key_id" parameter of the numeric keypad 100R2.

When the number of channels (services) in the same network is large, the channels (services) may be assigned to keys other than the numeric keypad 100R2. For example, a predetermined channel (service) is assigned to the color key 100R8. In this case, a numerical value corresponding to the "remote_control_key_id" parameter may be assigned to each key of the color key 100R8 in advance.

The remote control key descriptor may be described as a TLV-NIT descriptor. Therefore, for example, when the TLV-NIT acquired in the process of S103 of the operation sequence at the time of channel scan shown in FIG. 13A is valid data, the description of the remote control key descriptor is described together with the process of S105 to S107. The association may be set by storing the contents in the ROM 103 of the broadcast receiving device 100 or a non-volatile memory such as the storage unit 110.

In addition to the method of setting the association according to the description contents of the remote control key descriptor as described above, the user appropriately assigns the service of an arbitrary channel to each key of the numeric keypad 100R2 according to his / her preference. You may go by doing so. Further, both the association setting according to the description content of the remote control key descriptor and the association setting assigned according to the user's preference are simultaneously stored in the non-volatile memory of the broadcast receiving device 100, and menu operations and the like can be performed. Depending on your choice, you may choose to use only one of the settings. Further, in this case, the association setting assigned by the user according to his / her preference may be preferentially used. Further, according to the value of the priority flag described in the remote control key descriptor, the setting of the association according to the description content of the remote control key descriptor is prioritized over the setting of the association assigned by the user according to the preference. You may use it. The priority flag may be set by using some or all of the "reserved" parameters of the remote control key descriptor shown in FIG. 15B, or by adding a new parameter. In this case, the value of the priority flag may be controllable for each service ID.

Further, when the association setting assigned by the user according to the preference is stored in the non-volatile memory, the association setting according to the description content of the remote control key descriptor is not stored in the non-volatile memory. You may. Further, when the non-volatile memory of the broadcast receiving device 100 stores only the association setting assigned by the user according to the preference and the remote control key descriptor is described in the receiving TLV-NIT, the remote control key descriptor is described. Use the association setting according to the description content of the remote control key descriptor, and if the remote control key descriptor is not described in the receiving TLV-NIT, the association assigned by the user according to preference. You may choose to use the settings.

The process of changing the association of a predetermined channel (service) with each key of the numeric keypad 100R2 according to the description content of the remote control key descriptor is described in the service list descriptor in the network specified by TLV-NIT. It may be performed for all services at the same time, or it may be performed for only some services. When the above processing is performed only for some services, the old settings may be retained for other services. Further, when the "service_id" parameter is a predetermined value (for example, 999 or the like), the setting specified by the "remote_control_key_id" parameter among the set contents stored in the non-volatile memory of the broadcast receiving device 100. It is also possible to delete only with respect to.

That is, in the broadcast receiving device 100 of this embodiment, it is possible to set the association of a predetermined channel (service) with each key of the numeric keypad 100R2.

[Multi-channel channel selection process]
Also in the broadcasting system of this embodiment, it is possible to perform multi-organization in which a plurality of programs are broadcast in parallel on one channel (service). When simultaneously broadcasting a plurality of programs by multi-organization, it is considered that the above-mentioned one-touch channel selection is possible only for the multi-organization main channel and not for the multi-organization sub-channel. That is, when selecting a sub-channel of multi-organization, the method of directly inputting and specifying the service ID is used, or the main channel of multi-organization is once selected by one-touch channel selection, and then the channel up / down key 100R3 is used. It is necessary to use a method of selecting a desired subchannel by pressing, which causes a problem that the operation becomes complicated.

In order to solve the above problem, in the broadcast receiving device 100 of the present embodiment, the function of one-touch channel selection is expanded, and the numeric keypad 100R2 to which a predetermined service ID is assigned is repeatedly pressed a plurality of times within a predetermined time. This enables direct selection of multi-organized sub-channels.

This will be described with reference to FIG. 16A. For example, it is assumed that the service of channel 011 is assigned in advance to the "1" key of the numeric keypad 100R2 of the remote controller 100R. In this case, if the channel selection operation is performed in a state where the multi-organization is not performed (see (A) in the figure), the 011 channel is selected regardless of the number of times the "1" key is pressed. On the other hand, in the case of the channel selection operation in the state of performing multi-organization (see (B) in the figure), if the "1" key is pressed only once, the 011 channel is selected and the first "1" key is selected. If the "1" key is pressed again within a predetermined time from the pressing, the 012 channel is selected. Similarly, if the "1" key is pressed three times within a predetermined time, channel 013 is selected. If the "1" key is pressed again after a predetermined time has passed since the first pressing of the "1" key, the 011 channel may remain selected.

By enabling the above-mentioned operations, the broadcast receiving device 100 of the present embodiment enables direct channel selection of sub-channels at the time of multi-organization with a simpler operation.

Similarly, the angle of the multi-view compatible program and the selection of a predetermined video asset from a plurality of video assets may be selected by repeatedly pressing the numeric keypad 100R2 a plurality of times. As shown in FIG. 16B, when the service ID of the multi-view compatible program is assigned to the "1" key of the numeric keypad 100R2 of the remote controller 100R, pressing the "1" key only once selects the multi-view compatible program. It is assumed that the main view is displayed after being stationed. Further, if the "1" key is pressed again within a predetermined time after the first pressing of the "1" key, the subview 1 of the multi-view compatible program is displayed. Similarly, when the "1" key is pressed three times within a predetermined time, the subview 2 of the multi-view compatible program is displayed. When the "1" key is pressed again after a predetermined time has passed since the first pressing of the "1" key, the main view of the multi-view compatible program may remain displayed. A predetermined video asset can be selected from a plurality of video assets by the same operation as described above.

By enabling the above-mentioned operations, in the broadcast receiving device 100 of the present embodiment, it is possible to select the angle of the multi-view compatible program and select a predetermined video asset from a plurality of video assets with a simpler operation. It is supposed to be.

When one or more programs at the time of multi-organization are multi-view compatible programs or programs having a plurality of assets, only one of the above operations may be valid and the other may be invalid. For example, when one or more programs in the multi-organization are multi-view compatible programs or programs having a plurality of assets, the operation of pressing the same key multiple times within a predetermined time is directly selected for the sub-channel in the multi-organization. To be assigned to the processing of. Which operation is valid or invalid may be predetermined or may be selected by the user.

[Screen layout control of broadcast receiver]
It is assumed that the broadcast receiving device 100 of this embodiment can control the screen layout based on the description of the LCT. FIG. 17A shows an example of the LCT data structure. FIG. 17B shows an example of the data structure of the MPU presentation area designation descriptor.

In the LCT data structure, in particular, the "left_top_pos_x" parameter and the "light_down_pos_x" parameter are the horizontal position at the upper left and the lower right of the area when the left side of the full screen display is "0" / the right side is "100". The horizontal position shall be indicated as a ratio to the total number of pixels in the horizontal direction. The "left_top_pos_y" parameter and the "right_down_pos_y" parameter are the vertical positions of the upper left and lower right of the area when the upper side of the full screen display is "0" and the lower side is "100". It shall be shown as a ratio to the total number of pixels. Further, the "layer_order" parameter shall indicate the relative position of the region in the depth direction.

An example of assigning a layout to a layout number based on the setting of each parameter will be described below together with the setting value of each parameter.

FIG. 17C is a default layout setting of the broadcast receiving device 100 of this embodiment, and is an example of setting only one area on the entire screen. FIG. 17D is an example in which the entire screen is divided into three areas, and the respective areas are designated as “area 0”, “area 1”, and “area 2”. For example, when the number of pixels of the full screen is 7680 pixels horizontally / 4320 pixels vertically, the "region 0" has the "left_top_pos_x" parameter "0", the "left_top_pos_y" parameter "0", and the "right_down_pos_x" parameter "80". , "Right_down_pos_y" Since the parameter is "80", it is set in the range of (0,0)-(6143,3455). Similarly, "Region 1" is set in the range of (6144,0)-(7679,4319), and "Region 2" is set in the range of (0,3456)-(6143,4319).

FIG. 17E is an example of setting three regions as in FIG. 17D, but “region 0” is set in the range of (0,0) − (7679,4319), and “region 1” and “region 1” and “region” are set. 2 ”is arranged in front of the“ region 0 ”in the same range as described above, depending on the setting of the“ layer_order ”parameter. In FIG. 17F, "area 0" is set in device 0 (default device: broadcast receiving device 100 in this embodiment), and "area 1" is set in device 1 (mobile information terminal 700 in this embodiment). This is an example of the case where it is done.

As described above, in the broadcasting system of the present embodiment, by using the LCT, it is possible to control the screen layout for displaying the multimedia service on the receiver as intended by the service provider.

In the area where the program image or the data screen is not displayed due to the screen layout control described above, a predetermined background color specified by the background color specification descriptor described in the LCT may be displayed. Further, if the LCT does not include the background color designation descriptor, or if the broadcast receiving device 100 cannot correctly acquire the background color designation descriptor, the predetermined background color specified by the background color designation descriptor is obtained. If it is not possible to display due to hardware restrictions, etc., the image display device 100 may display a predetermined pattern predetermined in the area. Further, the area may be used as a notification display area for the user from the video display device 100. The notification may be arbitrary information.

It should be noted that the fractions after the decimal point generated when the screen is divided according to the set values of the parameters such as "left_top_pos_x" may be rounded up or down. It may be rounded (or rounded to zero in binary). For example, the number of pixels of the full screen is 7680 pixels / vertical 4320 pixels, the "left_top_pos_x" parameter of "area 0" is "0", the "left_top_pos_y" parameter is "0", the "right_down_pos_x" parameter is "51", and "right_down_". When the parameter is "51", "area 0" may be set in the range of (0,0)-(3916,2203) by the rounding process, or (0,0)-(3915, 3915, by the truncation process. "Area 0" may be set in the range of 2202). Further, in consideration of the macro block at the time of the video compression processing, the round-up / round-down processing may be performed in units of 8 pixels, 16 pixels, or the like. By the processing, it becomes possible to efficiently perform the area setting based on the LCT and the resolution conversion processing of the multimedia content in the area.

Alternatively, the setting value of the parameter such as "left_top_pos_x" may be limited to only "multiples of 5" or "multiples of 10" in the range of "0" to "100". Also in this case, the area setting can be preferably performed.

The content displayed in each of the areas is designated by the MPU presentation area designation descriptor shown in FIG. 17B. It is assumed that the contents of the MPU whose sequence number is specified by the "mpu_sequence_number" parameter in the figure are associated with the description of the LCT by the "layout_number" parameter and the "region_number" parameter.

Further, in the first "for" loop of the description of the MPU presentation area specification descriptor, a plurality of "layout_number" parameters and "region_number" parameters are described for one "mpu_sequence_number" parameter, and the layout is performed according to any description. The user may be allowed to select whether to perform control. For example, in the first "for" loop, when the "layout_number1" parameter, the "region_number1" parameter, the "layout_number2" parameter, and the "region_number2" parameter are described with respect to the predetermined "mpu_questence_number" parameter, the above-mentioned "region_number2" parameter is described. Let the user select whether to control the layout of the MPU specified by the mpu_sequence_number parameter based on the "layout_number1" parameter and the "region_number1" parameter, or based on the "layout_number2" parameter and the "region_number2" parameter, etc. Is. In this way, the user can control the layout of the video program according to his / her preference.

[Exception handling for screen layout control of broadcast receiver]
In the broadcast receiving device 100 of the present embodiment, even when the area control of the screen layout is performed by the above-mentioned LCT, when the user instructs the display of the EPG screen or the like, as an exception process, It is possible to perform screen layout control ignoring the description contents of the LCT. FIG. 18A shows an example of the operation of exception handling of screen layout control based on LCT.

According to the description of the LCT, the same screen layout control as in FIG. 17D is performed, the broadcast program image is displayed in the "area 0", and the broadcast of the program cooperation data and the like linked to the broadcast program in the "area 1" and the "area 2". When the user instructs the display of the EPG screen by the remote controller (not shown) while the content is displayed, the broadcast receiving device 100 of the present embodiment describes the LCT as shown in FIG. 18A (A). Regardless of the content, the screen layout setting is returned to the default setting (that is, the screen layout control similar to that shown in FIG. 17C is performed), and the EPG screen is controlled to be displayed on the entire screen. Further, when the user instructs the end of the display of the EPG screen, the screen layout control according to the description contents of the LCT is re-executed.

By performing the above-mentioned control, the EPG screen can be displayed larger than the case where the EPG screen is displayed while maintaining the area control of the screen layout as shown in FIG. 18A (B). It is possible to improve the visibility.

The exception handling of the screen layout control is not applied only when displaying the EPG screen, and as shown in FIG. 18B, various setting screens of the broadcast receiving device 100 (recording setting screen in the illustrated example). ) May be applied when the child screen is displayed or when the two screens are displayed.

In the case of the recording setting screen shown in FIG. 6A, the display area of the broadcast content is changed from the entire screen to only the sub screen portion at the lower right of the screen. Similarly, in the case of the two-screen display shown in FIG. 3B, the display area of the broadcast content is changed from the entire screen to only the split screen portion on the left side of the middle stage of the screen. In either case, the display area for displaying the broadcast content is narrower than when the entire screen is used, so that the area control of the screen layout is maintained within the display area (that is, the area division is performed). It is not preferable in terms of visual recognition to go and display a plurality of broadcast contents at the same time). Therefore, in the broadcast receiving device 100 of the present embodiment, in the above situation, only the broadcast content of the "area 0" is selected and displayed in the display area. It should be noted that the broadcast contents of "Area 1" and "Area 2" may be selected and displayed according to the immediately preceding area selection status.

By performing the above-mentioned control, it is possible to improve the visibility of the broadcast content as compared with the case where various broadcast contents are displayed while maintaining the area control of the screen layout. The same applies when the sub-screen is displayed on the recorded program list screen or when the Internet content is displayed on the browser.

[Aspect ratio conversion process for video signals]
The aspect ratio of video signals in TV broadcasting services includes "4: 3" used in conventional SDTV, "16: 9" used in HDTV in recent years, and "21: 9" suitable for movie content. ], Etc. The information on the aspect ratio of the video signal may be described by the video component descriptor in the broadcasting system of this embodiment. FIG. 19A shows an example of the data structure of the video component descriptor. In the figure, the "video_assist_ratio" parameter is information regarding the aspect ratio of the video signal. FIG. 19B shows an example of the meaning of the “video_assist_ratio” parameter. Aspect ratios different from those shown may be further assigned.

On the other hand, the aspect ratio of the display unit of the television receiver (broadcast receiving device 100 of this embodiment, etc.) capable of receiving the television broadcasting service is generally "16: 9". That is, when displaying video content having an aspect ratio of "4: 3" or "21: 9" on a general television receiver, the aspect ratio conversion process may be performed.

Whether or not to perform the aspect ratio conversion process may be determined by comparing the specifications of the monitor unit 162 of the broadcast receiving device 100 with the "video_assist_ratio" parameter of the video component descriptor. For example, when the aspect ratio of the monitor unit 162 of the broadcast receiving device 100 is "16: 9" (width 3840 pixels x height 2160 pixels, etc.), the value of the "video_assist_ratio" parameter is "0", "2", or ". If it is "3", the aspect ratio conversion process may not be performed, and if it is "1" or "5", the aspect ratio conversion process may be performed. Further, for example, when the aspect ratio of the monitor unit 162 of the broadcast receiving device 100 is "21: 9" (horizontal 5040 pixels x vertical 2160 pixels, etc.), the value of the "video_assist_ratio" parameter is "0" or "5". If so, the aspect ratio conversion process may not be performed, and if it is "1", "2", or "3", the aspect ratio conversion process may be performed.

19C and 19D show an example of the aspect ratio conversion process when the aspect ratio of the monitor unit 162 of the broadcast receiving device 100 is "16: 9" and the value of the "video_assist_ratio" parameter is "5". When displaying video content with an aspect ratio of "21: 9" on the monitor unit 162 with an aspect ratio of "16: 9", by adding black bands above and below the video content with an aspect ratio of "21: 9", the aspect ratio May be converted to "16: 9" (display A in the figure). In this way, the entire area of the original video content can be displayed without distortion. Further, only the central portion of the video content having the aspect ratio “21: 9” may be cut out and displayed on the monitor unit 162 (display B in the figure). In this way, it is possible to display the main part of the original video content in a large size. Further, a small amount of black bands may be added above and below the video content having an aspect ratio of "21: 9" to further cut out the central portion (display C in the figure). In this way, most of the original video content can be displayed in a large size. Further, the left and right edges of the video content having an aspect ratio of "21: 9" may be compressed to display the entire area (display D in the figure). In this way, the entire area of the original video content can be enlarged, and the main part can be displayed without distortion. Further, black bands may be added slightly above and below the video content having an aspect ratio of "21: 9", and the left and right edges may be further compressed to display the entire area (display E in the figure). By doing so, it is possible to display the entire area of the original video content in a large size and with less distortion at the left and right ends.

The user may be able to select how to perform the aspect ratio conversion process by setting a menu or the like. Alternatively, the switching may be performed by pressing a predetermined key on the remote controller or the like. The above-mentioned aspect ratio "21: 9" includes an aspect ratio such as "2.35: 1" of a so-called cinemascope, which is roughly "21: 9". The same applies to the numerical values of other aspect ratios.

[EPG display of broadcast receiver]
In the broadcasting system of this embodiment, time-series information regarding events (so-called programs) included in each service constituting the broadcasting network is transmitted by MH-EIT. The MH-EIT shown in FIG. 7E is identified into two classes by the table ID (corresponding to the "talbe_id" parameter in the figure), and information on the current / next event of the own TLV stream and each event of the own TLV stream. It shall be possible to show schedule information. The broadcast receiving device 100 of this embodiment refers to the MH-EIT or the like and identifies by a service ID (corresponding to the “service_id” parameter in the figure) to provide information such as the start time and broadcast time of each event. It is possible to create an EPG screen by acquiring the above, and it is possible to superimpose the created EPG on the video information or the like in the video synthesis unit 161 and display it on the monitor unit 162.

FIG. 20A is a diagram showing an example of an EPG screen in the broadcast receiving device 100 of this embodiment. The EPG screen 162a has a matrix shape in which the vertical axis represents time and the horizontal axis represents service ID (channel), and detailed information of broadcast programs broadcast on each channel in each time zone is displayed. Further, the detailed information 162a1 of each broadcast program is mainly composed of a title area 162a2 and a detailed explanation area 162a3. In the detailed information 162a1 of each broadcast program, the program information described and distributed in the MH-short format event descriptor and the MH-extended format event descriptor may be displayed. When the capacity of the program information or the like described in each descriptor is large, the abbreviated display may be performed normally, and all the program information may be displayed by a pop-up or the like at the time of selection by operating the remote controller (not shown). .. Alternatively, at the time of selection, the program information or the like described in each descriptor may be transmitted to the mobile information terminal 700 in the linked operation, and the mobile information terminal 700 may be instructed to display the program information on the display unit 741.

In the title area 162a2 of the detailed information 162a1 of each broadcast program, the program title of the broadcast program, symbols representing the attributes of the broadcast program, and the like are displayed. The symbols / characters representing the attributes of the broadcast program are, for example, symbols / characters indicating that the program is a new program, symbols / characters indicating that the program is a rebroadcast program, and the like. Alternatively, it may be a mark or the like symbolizing "data" which means that it corresponds to data broadcasting by a broadcasting service. Further, the mark 162a4 or the like symbolizing "NetWork", which means that the content or application related to the broadcast program can be acquired from the network, may be used. Further, by differentiating the background color of the detailed information 162a1 from others, or by surrounding the display area of the detailed information 162a1 with a thick frame, a symbol or the like representing the attribute of the broadcast program may be substituted.

It should be noted that each control information (message, table, descriptor, etc.) in the broadcasting system of this embodiment indicates that the content, application, etc. related to the broadcasting program can be acquired from the network. However, if the LAN cable is not connected to the LAN communication unit 121 of the broadcast receiving device 100 and the access to each server device on the network is not possible, the mark 162a4 in which the above-mentioned "NetWork" is symbolized Etc. may be controlled so as not to be displayed.

Further, when the broadcast program is a distribution program distributed via the Internet 200 and cannot be acquired only from the broadcast wave, the broadcast receiving device 100 is a server device on the network as described above. When the access to is not possible, as shown in FIG. 20B, the portion of the detailed information 162b1 displayed on the EPG screen 162b may be controlled to be grayed out. That is, it is controlled so that the detailed information of the distributed program that cannot be viewed is not displayed. Further, by differentiating the background color of the detailed information 162b1 from others, it may be used as a substitute for the grayout process. Alternatively, a message such as "This program cannot be viewed" may be displayed in the detailed explanation area 162a3 of the distributed program. When the detailed information 162b1 is selected by operating the remote controller (not shown), the broadcast receiving device 100 is in a state where it cannot access each server device on the network, or the distribution program associated with the detailed information 162b1 is viewed. The user may be notified by a pop-up or the like that it cannot be performed.

By each of the above-mentioned controls, the broadcast receiving device 100 can provide the program information of each broadcast program to the user in a more comfortable format according to the network connection status.

FIG. 20C is a diagram showing another example of the EPG screen in the broadcast receiving device 100 of this embodiment. In the figure, "M1 TV", "M2 broadcast", "M3 channel", "M4TV", "TV M5", etc. are the broadcast station names of each channel, and in particular, the "M2 broadcast" station depends on the broadcast wave. It is assumed that the broadcast program to be distributed and the broadcast program distributed via the Internet 200 (information 162c1 in the frame indicated by "net broadcasting" in the figure) are provided at the same time.

As shown in the figure, when there is a channel having only a distribution program distributed via the Internet 200, all channels (including information 162c1) are normally shown in the EPG screen 162c of the figure (A). Control to display the information of. On the other hand, when the broadcast receiving device 100 cannot access each server device on the network, as shown in the EPG screen 162d of FIG. It may be controlled not to display the channel information of "M2 broadcasting (net broadcasting)" (information 162c1 in the figure (A)).

By each of the above-mentioned controls, the user of the broadcast receiving device 100 can eliminate the need to confirm the information of the channel that he / she cannot watch.

[Emergency warning broadcast display of broadcast receiver]
The broadcast receiving device 100 of this embodiment performs an emergency warning broadcast reception process when the emergency warning broadcast start control signal bit of the TMCC signal included in the transmission data including the TLV stream changes from "0" to "1". It shall be possible to do so.

The emergency warning broadcast may be provided as a broadcast program of a dedicated channel (service ID), may be provided as a full-screen display application, or may be provided as character information at a character supermarket. When the emergency warning broadcast is provided as character information in the character super, it is preferable to display the character information of the character super regardless of the state of the broadcast receiving device 100 immediately before receiving the emergency warning broadcast. That is, as shown in FIG. 21, when the user watches a normal broadcast program and receives the emergency warning broadcast while the program screen 162e of the broadcast program is displayed on the monitor unit 162, the emergency warning broadcast is performed. The character information 162e1 is superimposed and displayed on the program screen 162e. Similarly, when the user instructs the display of the EPG screen and receives the emergency warning broadcast while the EPG screen 162f is displayed on the monitor unit 162, the character information 162f1 by the emergency warning broadcast is superimposed on the EPG screen 162f. Is controlled to be displayed.

By the above-mentioned control, in the broadcast receiving device 100 of this embodiment, even when the user selects and displays the EPG screen, various setting screens, the recorded program list screen, the Internet browser, etc., the emergency warning broadcast is performed. Is received, it is possible to avoid overlooking important text information based on the emergency warning broadcast. Note that this control may be performed on the character information of a normal character supermarket that does not depend on the emergency warning broadcast.

When the emergency warning broadcast is provided as a broadcast program of a dedicated channel (service ID), the emergency warning broadcast channel (service ID) is used regardless of the channel (service ID) of the program currently being viewed. The channel may be automatically selected. Further, when the emergency warning broadcast is provided as a broadcast program of a dedicated channel (service ID) or as an application, an external portable terminal device (this embodiment) that cooperates under the control of the cooperation function execution unit 1103. In the above, the broadcast program or application of the emergency warning broadcast may be distributed to the mobile information terminal 700 or the like.

Further, if the power of the broadcast receiving device 100 is not turned on when the emergency warning broadcast is delivered, control may be performed so that the power of the broadcast receiving device 100 is automatically turned on. Alternatively, control may be performed so as to transmit a notification that the emergency warning broadcast has started to the mobile information terminal 700 having a history of cooperative operation with the broadcast receiving device 100.

By the above-mentioned control, in the broadcast receiving device 100 of this embodiment, it is possible to avoid overlooking the display of the video of an important broadcast program or application based on the emergency warning broadcast.

[Display control exception handling]
When the broadcast receiving device 100 of this embodiment cannot acquire the data transmitted by a route other than the TLV stream among the data constituting the same package, for example, the following exception processing may be performed.

As described with reference to FIG. 7A, in the broadcasting system supported by the broadcast receiving device 100 of this embodiment, the data acquired from the TLV stream and the TLV stream based on the location information (see FIG. 7C) stored in the MPT. Data acquired from routes other than can be included in the same package. However, the data transmitted by the data transmission path other than the TLV stream (for example, the IPv4 data flow or the IPv6 data flow of the communication line, the MPEG2-TS of the broadcast, etc.) indicated by the location information has the function of receiving the TLV / MMT stream. Is data to be acquired by another receiving function. Therefore, even when the broadcast receiving device 100 is operating, the receiving function of these transmission paths is not operating, or even if the receiving function itself is operating, the relay device or the like on the transmission path is operating. Data acquisition from these transmission paths, such as no situation, no wired or wireless connection of these transmission paths, or a situation where the broadcast receiver 100 is installed in an environment where these transmission paths cannot be connected in the first place. There may be situations where you cannot do it.

Under such circumstances, the location information stored in the MPT receives an event indicating that the data acquired from the TLV stream and the data acquired from a route other than the TLV stream are associated with each other so as to be included in the same package. If so, the broadcast receiving device 100 of this embodiment may perform the following operations.

For example, as shown in FIGS. 17D and 17E, the LCT sets a plurality of areas in the screen, displays a program image based on the data acquired from the TLV stream in "area 0", and displays "area 1" or "area 1". When the "area 2" is associated so that the content based on the data acquired from the transmission path other than the TLV stream is displayed, and the content other than the TLV stream to be displayed in the "area 1" or the "area 2" is displayed. If the data of the transmission path of the above cannot be acquired, the layout display of the plurality of areas specified by the LCT may be prohibited. Specifically, even if the LCT is received, the program image based on the data acquired from the TLV stream is left in the "area 0" of the default layout display shown in FIG. 17C, and the program image is displayed in FIGS. 17D and 17E. It suffices not to shift to the layout display of multiple areas like this. Further, in this state, even if a change instruction from the default layout to the layout indicated by the LCT is input to the operation input unit 170 of the broadcast receiving device 100, the default layout display shown in FIG. It is also possible to switch to the data broadcasting screen so as not to shift to the layout display of a plurality of areas as shown in FIGS. 17D and 17E.

Further, as shown in FIGS. 17D and 17E, the LCT sets a plurality of areas in the screen, displays a program image based on the data acquired from the TLV stream in "area 0", and displays "area 1" and When the "area 2" is associated so that the content based on the data acquired by the transmission path other than the TLV stream is displayed, and the content other than the TLV stream to be displayed in the "area 1" or the "area 2" is displayed. As another operation example when the data of the transmission path of the above cannot be acquired, the display frames of the multiple areas of FIGS. 17D and 17E shown by the LCT are once displayed, and the background colors of "area 1" and "area 2" are displayed. Or, if a predetermined still image is displayed and data of a transmission path other than the TLV stream indicated by the MPT location information cannot be acquired even after a lapse of a predetermined time, the default layout display state shown in FIG. 17C is restored. You may switch the display. In this case, even when the layout of FIG. 17C is changed to the layout of FIGS. 17D or 17E and the layout of FIGS. 17D or 17E is changed to the layout of FIG. 17C, the TLV stream is set in "Area 0" of each layout. It is preferable if the program video based on the data acquired from the above is operated so as to be continuously displayed, because the user's viewing of the program video itself can be continued.

Further, since the data of the transmission path other than the TLV stream to be displayed in "Area 1" and "Area 2" cannot be acquired, the data acquired from the TLV stream in "Area 0" of the default layout display shown in FIG. 17C is used. When the based program video is displayed, the various communication functions and various reception functions of the broadcast receiving device 100 of this embodiment start to operate, and the communication environment / communication status and various reception functions of the various communication functions are started. Due to the change in the reception environment / reception status of the above, it is possible that the data of the transmission path other than the TLV stream to be displayed in the "region 1" or the "region 2" can be acquired. In this case, the broadcast receiving device 100 of the present embodiment immediately switches from the default layout display shown in FIG. 17C to the layout of a plurality of areas as shown in FIGS. 17D and 17E shown by the LCT, and “region 0”. The program image based on the data acquired from the TLV stream may be displayed in, and the content based on the data acquired from the transmission path other than the TLV stream may be displayed in "Area 1" or "Area 2". Alternatively, the layout change may be executed after the change instruction from the default layout to the layout indicated by the LCT is input from the operation input unit 170 without immediately changing the layout. In this case, it is preferable to notify the user by an OSD display or the like that the layout can be changed.

[Copyright protection function]
In the digital broadcasting system supported by the broadcast receiving device 100 of this embodiment, by transmitting the copy control information to the MPT or the like, for example, "unlimited copying is possible"("unlimited copying is possible and encryption at the time of storage and output" is possible. It may be divided into two types: "Cryptography required" and "Unlimited copying and no encryption processing required during storage and output"), "Only one generation can be copied", and "Predetermined multiple times can be copied" (for example, 9 times). If copy is possible + one move is possible, the copy control state of the content referred to by MPT or the like may be indicated, such as so-called "dubbing 10") or "copy prohibited". In this case, the broadcast receiving device 100 of the present embodiment stores the content in the storage (storage) unit 110, records it on a removable recording medium, outputs it to an external device, and sends it to the external device according to the copy control information. It may be configured to control copying, moving processing to an external device, and the like.

The target of the storage process is not only the storage (storage) unit 110 inside the broadcast receiving device 100, but also a removable recording medium that has been subjected to protection processing such as encryption processing so that it can be played back only by the broadcast receiving device 100. External devices and the like may be included. Specifically, for example, among external recording devices such as HDDs connected to the expansion interface unit 124, those that can be recorded and played back only by the broadcast receiving device 100 are included.

<Content copy control>
A specific example of the content copy control process based on the copy control information will be described below.

First, when the copy control information included in the MPT or the like indicates "unlimited copying is possible", the broadcast receiving device 100 of this embodiment is stored in the storage (storage) unit 110, recorded in a removable recording medium, or externally. Output to a device, copying to an external device, move processing to an external device, etc. may be performed without restrictions. However, the control based on the copy control information is divided into "unlimited copy possible and encryption processing required at the time of storage and output" and "unlimited copy possible and encryption processing not required at the time of storage and output". , "Unlimited copying is possible and encryption processing is required at the time of storage and output", storage in the storage (storage) unit 110, recording on a removable recording medium, output to an external device, copying to an external device , Move processing to external devices can be performed without restrictions, but it is necessary to perform encryption processing in each case.

Further, when the copy control information included in the MPT or the like indicates "copying is possible only for one generation", the broadcast receiving device 100 of this embodiment is used for encrypted storage in the storage (storage) unit 110 or broadcast reception. It may be possible to record on a removable recording medium that has been subjected to a protective process such as an encryption process that can be reproduced only by the device 100. In addition, when the stored content is output to an external device for viewing, it is encrypted and output together with the copy control information of "copy prohibited". Further, so-called move processing to an external device (a process of copying the content to the external device and rendering the content of the storage (storage) unit 110 of the broadcast receiving device 100 or the like unreproducible by an erasing process or the like) is possible.

When the copy control information included in the MPT or the like indicates "copying is possible a predetermined number of times", the broadcast receiving device 100 of the present embodiment encrypts and stores the data in the storage (storage) unit 110, or broadcast reception. It may be possible to perform a process of recording on a removable recording medium that has been subjected to a protective process such as an encryption process that can be reproduced only by the device 100. In addition, when the stored content is output to an external device for viewing, it is encrypted and output together with the copy control information of "copy prohibited". Further, it may be possible to perform a predetermined number of times of copying and moving processing to an external device. In the case of the so-called "dubbing 10" regulation, it is possible to perform 9 copies to an external device and 1 move process.

Further, when the copy control information included in the MPT or the like indicates "copy prohibition", the broadcast receiving device 100 of this embodiment prohibits storage (copying) in the storage (storage) unit 110 or the like. However, the broadcast receiving device 100 stores (stores) only a predetermined time specified in advance or a predetermined time specified by control information (for example, by MH-Expire descriptor, content use control descriptor, etc.) included in the broadcast signal. ) It may be configured to have a "temporary storage" mode that enables holding in the unit 110 or the like. In this case, the broadcast receiving device 100 can temporarily hold the content in the storage (storage) unit 110 or the like even when the copy control information included in the MPT or the like indicates "copy prohibited". And. When the copy control information included in the MPT or the like outputs the "copy prohibited" content to an external device for viewing, it is encrypted and output together with the "copy prohibited" copy control information.

The output for viewing to the above-mentioned external device is via the video output unit 163 and the audio output unit 166 of the broadcast receiving device 100 of this embodiment, the digital I / F unit 125, the LAN communication unit 121, or the like. Just go. The above-mentioned copy or move process to the external device may be performed via the digital I / F unit 125, the LAN communication unit 121, or the like.

FIG. 22A shows an example of the data structure of the content copy control descriptor in the broadcasting system of this embodiment. It is assumed that the "digital_recording_control_data" parameter in the figure is digital copy control information and indicates information for controlling the copy generation of the content. Further, FIG. 22B shows an example of the parameter values of the digital copy control information and their meanings. For example, when the parameter is "00", "unlimited copying is possible" is indicated, when the parameter is "01", it can be defined by the business operator, and when the parameter is "10", it can be defined. It indicates "copy is possible only for one generation", and when the parameter is "11", it indicates "copy prohibited". Further, FIG. 23 shows an example of the data structure of the content usage control descriptor in the broadcasting system of this embodiment. It is assumed that the "copy_restriction_mode" parameter in the figure is the copy restriction mode and indicates whether or not the number limited copy is possible.

In the broadcast receiving device 100 of the present embodiment, when the digital copy control information is "01", it is possible to execute a storage process capable of copying a predetermined number of times predetermined by the broadcaster. Alternatively, when the digital copy control information is not "11" and the copy restriction mode indicates that the number of copies can be limited, the accumulation process capable of copying a predetermined number of times predetermined by the broadcaster can be executed. Is also good. Alternatively, in this case, the number of copyable times for each content may be specified by using a part or all of the "reserved_future_use" parameter of the digital content usage descriptor.

Through the above processing, the broadcast receiving device 100 of the present embodiment can realize the above-mentioned content copy control of "predetermined number of times copying possible".

Further, when the "retention_mode" parameter in the content usage control descriptor shown in FIG. 23 is a temporary storage control bit and the digital copy control information indicates "copy prohibited", temporary storage of the target content is permitted. It indicates whether or not to do so. Further, the "retention_state" parameter is the temporary storage allowable time, and indicates the temporary storage allowable time when the temporary storage allowable bit allows the temporary storage of the target content.

In the broadcast receiving device 100 of this embodiment, by referring to the information of the temporary storage control bit and the temporary storage allowable time, the digital copy control information of each content indicates "copy prohibited". It is possible to control whether or not the accumulation is possible and the accumulation time thereof.

According to the process described above, appropriate content protection can be realized according to the copy control information associated with the content.

<Content output control>
Next, a specific example of the process of controlling the output of the content to the external device will be described below.

In the content usage control descriptor shown in FIG. 23, the "image_constraint_token" parameter is a resolution limiting bit, and indicates whether or not image quality limitation is required when the content is output to an external device. When the resolution limiting bit indicates that image quality limitation is required, the broadcast receiving device 100 of this embodiment shall limit the image quality of the target content when outputting the target content to an external device. It should be noted that the image quality limitation may not be necessary when accumulating in the storage (accumulation) unit 110 or the like. The image quality limitation is, for example, converting received (or accumulated) UHD (7680 pixels × 4320 pixels) video content into SHD (3840 pixels × 2160 pixels) video and outputting it, or HD (1920 pixels × 1080). Pixel) video is converted into SD (640 pixels x 480 pixels) video and output. The extent to which the image quality of the target content is restricted, that is, the resolution of the image quality after the image quality restriction is specified, is specified by using a part or all of the "reserved_future_use" parameter of the digital content usage descriptor. You may do so.

Similar to the above, for example, a frame rate limit bit and a pixel resolution limit bit are prepared by using a part or all of the "reserved_future_use" parameter, and the frame rate limit and the pixel resolution limit are set when the content is output to an external device. It may be controlled. When the frame rate limiting bit indicates that the frame rate must be limited, the broadcast receiving device 100 of the present embodiment limits the frame rate of the target content when outputting the target content to an external device. Assumed to be performed. For example, video content having a frame rate of 120 Hz is converted to a frame rate of 60 Hz and output. When the pixel resolution limiting bit indicates that the pixel resolution needs to be limited, the broadcast receiving device 100 of the present embodiment of the broadcast receiving device 100 of the present embodiment outputs the target content to an external device for each pixel of the target content. The resolution shall be limited. For example, each pixel of the video content in which each pixel is composed of 12 bits is converted into 8 bits and output.

Further, a resolution limit control flag, a frame rate limit control flag, and a pixel resolution limit control flag are prepared by using a part or all of the "reserved_future_use" parameter, and the resolution limit control flag, the frame rate limit control flag, and the pixel are prepared. It may be possible to control whether or not the image quality limitation, the frame rate limitation, and the pixel resolution limitation are performed according to the resolution limitation control flag. For example, when the resolution limit control flag indicates that the resolution limit control is performed according to the interface specifications, if the interface that outputs the target content is equipped with the predetermined content protection technology, the image quality limit is not performed and the predetermined image quality is limited. If the content protection technology of the above is not provided, control may be performed so as to limit the image quality.

Specifically, for example, when the digital interface unit 125 is an HDMI interface and the target content is output to an external device connected to the HDMI interface, the HDMI interface of the external device is HDMI (High-bandwidth Digital). Content Protection) If version 2.2 or later is supported, the target content is output without the image quality restriction, and if the HDCP version of the HDMI interface of the external device is less than 2.2, the image quality restriction is performed. To output the target content. That is, depending on whether or not the interface that outputs the target content is equipped with a predetermined content protection technology, or if the interface is equipped with the content protection technology, it depends on the version of the content protection technology. , It suffices to control whether or not the image quality of the target content is restricted. When the resolution limit control flag does not indicate that the resolution limit control is performed according to the interface specifications, the presence or absence of the image quality limit may be controlled only by the resolution limit bit. The same processing may be performed for the frame rate limit control flag and the pixel resolution limit control flag.

In addition, the above-mentioned copy control information can be copied to an external device via the LAN communication unit 121 of the content indicating copy restrictions such as "only one generation can be copied", "predetermined multiple times can be copied", and "copy prohibited". Copy processing is possible only when the IP address of the external device that is the destination of the transmission packet from the broadcast receiving device 100 is within the same subnet as the IP address of the broadcasting receiving device 100, and the IP address of the external device is broadcast. If it is outside the same subnet as the IP address of the receiving device 100, it may be prohibited. The content whose copy control information is "unlimited copying is possible and encryption processing is required at the time of storage and output" may be handled in the same manner.

Similarly, the above-mentioned copy control information indicates copy restrictions such as "only one generation can be copied", "predetermined multiple times can be copied", "unlimited copying is possible and encryption processing is required at the time of storage and output". Once stored in the storage (storage) unit 110, the IP of the external device, which is the destination of the transmission packet from the broadcast receiving device 100, is also used for move processing, copy processing, etc. to the external device via the LAN communication unit 121. It is possible only when the address is in the same subnet as the IP address of the broadcast receiving device 100, and may be prohibited when the IP address of the external device is outside the same subnet as the IP address of the broadcast receiving device 100.

Further, in the viewing video output and audio output of the content stored in the storage (storage) unit 110 of the broadcast receiving device 100, in principle, the IP address of the external device which is the destination of the transmission packet from the broadcast receiving device 100 is used. It is possible only when it is in the same subnet as the IP address of the broadcast receiving device 100, and it is prohibited when the IP address of the external device is outside the same subnet as the IP address of the broadcast receiving device 100. However, the registration process as a device that is connected to the external device within the same subnet as the IP address of the broadcast receiving device 100 within a predetermined period and can be viewed even outside the same subnet as the IP address of the broadcast receiving device 100. In the case of a device that has been (paired), even if the IP address of the external device is outside the same subnet as the IP address of the broadcast receiving device 100, the storage (storage) of the broadcasting receiving device 100 in the external device is performed. ) It may be configured to enable viewing video output and audio output of the content stored in the unit 110. In this case, the video output and audio output for viewing are performed by encrypting the content.

However, the encryption process may be controlled according to the value of the "encryption_mode" parameter of the content utilization control descriptor shown in FIG. 23. That is, when the value of the "encryption_mode" parameter indicates that the output protection of the IP interface output is required, the encryption process is performed, and the output protection of the IP interface output is not required. The viewing video output and the audio output may be performed without performing the encryption process. When the value of the "encryption_mode" parameter indicates that the output protection of the IP interface output is required, the encryption process is performed by using a part or all of the "reserved_future_use" parameter of the content usage control descriptor. The IP address range of the external device capable of performing the viewing video output and the audio output may be specified without performing the above. That is, for a predetermined IP address, viewing video output and audio output can be performed even if the IP address is not in the same subnet as the IP address of the broadcast receiving device 100.

Further, the period during which the registration process (pairing) is valid may be specified by using a part or all of the "reserved_future_use" parameter of the content usage control descriptor. In this case, if the date and time when the registration process (pairing) of the external device is executed is within the specified period, even if the external device is outside the same subnet as the IP address of the broadcast receiving device 100, the external device is used. It may be controlled so that the video output for viewing and the audio output to the device are allowed and not allowed outside the specified period.

Further, the above-mentioned move processing, copy processing, output processing, etc. of the content to the external device via the LAN communication unit 121 may be controlled according to the value of the "remote_view_mode" parameter of the content usage control descriptor. .. That is, when the value of the "remote_view_mode" parameter does not allow remote viewing of the target content, all of the move processing, copy processing, output processing, etc. of the content to the external device via the LAN communication unit 121 are performed. It may be controlled to prohibit it.

According to the process described above, appropriate content protection can be realized even when the content is output to an external device.

<Content copy control exception handling 1>
In the data structure of the content copy control descriptor shown in FIG. 22A, the first digital copy control information (“digital_recording_control_data” parameter located immediately after “descriptor_length”) is copy generation control information regarding the entire content, and is the first. The second digital copy control information (“digital_recording_control_data” parameter located immediately after “component_tag”) is copy generation control information for each of the components constituting the content. It should be noted that the designation of each component shall be made by the "component_tag" parameter.

In the broadcasting system of this embodiment, when controlling the copy generation of the entire content (program), only the first digital copy control information is described in the content copy control descriptor, and the first digital copy is described. The copy generation is controlled by the control information. On the other hand, when controlling the copy generation for each component constituting the content, both the first digital copy control information and the second digital copy control information are described in the content copy control descriptor. Controls the copy generation. Further, when the copy generation is controlled for each component constituting the content, the description of the first digital copy control information described in the content copy control descriptor and the description of the second digital copy control information do not match. The situation is possible. In the above situation, the broadcast receiving device 100 of this embodiment may perform the following operations.

First, in the first operation example, when the description of the first digital copy control information and the description of the second digital copy control information do not match, the copy generation control shown in the first digital copy control information It is a method of controlling so as to operate based on. In this case, simple copy generation control common to each component constituting the same content becomes possible.

Next, in the second operation example, when the description of the first digital copy control information and the description of the second digital copy control information do not match, the copy generation shown in the second digital copy control information It is a method of controlling so as to operate based on the control. In this case, even if the components constitute the same content, different copy generation control is possible for each component, that is, more precise copy generation control is possible.

Further, in the third operation example, when the description of the first digital copy control information and the description of the second digital copy control information do not match, the stricter condition of the two different digital copy control information is satisfied. This is a method of controlling the operation based on the digital copy control information. For example, if one is "unlimited copy possible" and the other is "only one generation can be copied", the information of "only one generation can be copied" is followed. Alternatively, if one is "copyable multiple times" and the other is "copy prohibited", the information of "copy prohibited" is followed. Alternatively, if both are "copyable multiple times", the information with the smaller number of copies specified separately is followed. In this case, stricter copy generation control becomes possible.

By performing the above processing, the broadcast receiving device 100 of the present embodiment can operate suitably even when two different digital copy control information is described in the content copy control descriptor.

<Content copy control exception handling 2>
As described with reference to FIG. 7A, in the digital broadcasting system supported by the broadcast receiving device 100 of the present embodiment, the route different from the data acquired in the TLV stream of the broadcasting route due to the location information in MPT (see FIG. 7C). The data acquired by (IPv4, IPv6, MPEG2-TS, URL, etc.) may also be included in the same package and the same event as the data acquired by the TLV stream, but at this time, the copy control information is included in the MPT or the like. Explain the content protection when it is.

First, when copy control information is included in MPT or the like, the data included in the same package and the same event in the location information is a route different from the data acquired in the TLV stream of the broadcast route (IPv4, IPv6, MPEG2-TS, URL, Etc.), the data may be controlled according to the copy control information included in the TLV stream. As described above, the copy control state of the content specified by these copy control information is "unlimited copy possible" ("unlimited copy possible and encryption processing required at storage and output" and "unlimited copy possible". And it may be divided into two types, "encryption processing is not required at the time of storage and output"), "only one generation can be copied", "predetermined multiple times can be copied" (for example, if 9 times copy is possible + 1 move is possible, so-called " Dubbing 10 ”),“ copy prohibited ”, etc. can be specified.

Here, when the position of the data indicated by the location information includes the MPEG2-TS data transmitted by another digital broadcast signal, the MPEG2-TS data is associated with the copy control information even in the other digital broadcast signal. It is being broadcast. Then, how to perform copy control of the MPEG2-TS data according to what information (whether to follow the copy control information included in the TLV / MMT stream or the copy control information included in the MPEG2-TS) becomes a problem. ..

In the digital broadcasting system of this embodiment, as a solution to this problem, the broadcast receiving device 100 may perform any of the following plurality of solutions.

<Operation example 1>
In the first operation example, when copy control information is included in MPT or the like, and MPEG2-TS data transmitted by another digital broadcast signal is included in the data included in the same package and the same event in the location information, MPEG2 -The copy control state indicated by the copy control information included in the TLV stream is preferentially controlled over the copy control state indicated by the copy control information included in the TS.

For example, the copy control state indicated by the copy control information included in the TLV stream is "1st generation copy possible", and the copy control state indicated by the copy control information included in the MPEG2-TS is "predetermined multiple times copy possible". If there is, copy control may be performed as the content of "1st generation copy possible" even if the data is acquired by a route different from the data acquired by the TLV stream (digital broadcasting of MPEG2-TS transmission format). For example, the copy control state indicated by the copy control information included in the TLV stream is "unlimited copy possible", and the copy control state indicated by the copy control information included in the MPEG2-TS is "predetermined multiple times copy possible". If there is, copy control may be performed as "unlimited copy possible" content even if the data is acquired by a route different from the data acquired by the TLV stream (digital broadcasting of MPEG2-TS transmission format).

In the case of this operation, the data acquired by a route other than the TLV stream can also be put into the copy state to be managed in the broadcasting system supported by the broadcasting receiving device 100 of this embodiment.

<Operation example 2>
In the second operation example, when copy control information is included in MPT or the like, and MPEG2-TS data transmitted by another digital broadcast signal is included in the data included in the same package and the same event in the location information, TLV. The copy control state indicated by the copy control information included in the stream is compared with the copy control state indicated by the copy control information included in MPEG2-TS, and the copy control state indicated by the copy control information included in MPEG2-TS is compared. If it is stricter than the copy control state indicated by the copy control information included in the TLV stream, the storage process in the storage (storage) unit 110 or the like, the recording process in the removable recording medium, or the output process from the digital interface is performed. At that time, it operates so as to exclude the MPEG2-TS data from the processing target content.

In the case of this operation, the data acquired by a route other than the TLV stream is copied on the broadcast receiving device 100 of this embodiment while respecting the original copy control information set in the broadcasting system that transmits the data. It is possible to eliminate duplication of control states.

Further, as a result of the comparison, when the copy control state indicated by the copy control information included in the MPEG2-TS is the same as the copy control state indicated by the copy control information included in the TLV stream, or a looser copy control state. May perform copy control on the MPEG2-TS data included in the same package and the same event in the location information as the content in the copy control state indicated by the copy control information included in the TLV stream.

In the case of this operation, the data acquired by a route other than the TLV stream is copied on the broadcast receiving device 100 of this embodiment while respecting the original copy control information set in the broadcasting system that transmits the data. It is possible to eliminate duplication of control states.

In the above description, the copyright protection function of the broadcast receiving device 100 of this embodiment has been described as being performed based on the copy control information included in the MPT. However, the table in which the copy control information is arranged is not limited to the MPT. In addition to the MPT, the MH-service description table (MH-SDT) and the MH-event information table (MH-EIT) described in FIG. 6B, or other tables are arranged for transmission, and the broadcast receiving device 100 conforms to these. Copyright protection processing may be performed.

According to the present embodiment described above, it is possible to provide a broadcast receiver compatible with MMT digital broadcasting.

(Example 2)
Hereinafter, Example 2 of the present invention will be described. The configuration, treatment, effect, etc. in this embodiment shall be the same as in Example 1 unless otherwise specified. Therefore, in the following, the differences between the present embodiment and the first embodiment will be mainly described, and the common points will be omitted as much as possible in order to avoid duplication. Further, the broadcast receiving device of this embodiment will be described below assuming that the broadcast receiving device of this embodiment is a television receiver that supports both the MMT system and the MPEG2-TS system as the media transport system.

[Hardware configuration of broadcast receiver]
FIG. 24 is a block diagram showing an example of the internal configuration of the broadcast receiving device 800. The broadcast receiving device 800 includes a main control unit 801, a system bus 802, a ROM 803, a RAM 804, a storage unit 810, a LAN communication unit 821, an expansion interface unit 824, a digital interface unit 825, a first tuner / demodulation unit 831, and a second tuner /. Demodulation unit 832, MMT decoding processing unit 841, MPEG2-TS decoding processing unit 842, video synthesis unit 861, monitor unit 862, video output unit 863, audio synthesis unit 864, speaker unit 865, audio output unit 866, operation input unit 870 Consists of ,.

Main control unit 801, system bus 802, ROM 803, RAM 804, storage unit 810, expansion interface unit 824, digital interface unit 825, monitor unit 862, video output unit 863, speaker unit 865, audio output unit 866, operation input unit 870, Etc. are the main control unit 101, the system bus 102, the ROM 103, the RAM 104, the storage (storage) unit 110, the expansion interface unit 124, the digital interface unit 125, the monitor unit 162, and the video output unit 163 in the broadcast receiving device 100 of the first embodiment. , The speaker unit 165, the audio output unit 166, the operation input unit 170, and the like have the same functions, and detailed description thereof will be omitted.

The first tuner / demodulation unit 831 receives the broadcast wave of the broadcast service that employs MMT as the media transport method via an antenna (not shown), and the service desired by the user is controlled by the main control unit 801. Synchronize (select) to the channel of. Further, the first tuner / demodulation unit 831 demodulates the received broadcast signal, acquires an MMT data string, and outputs it to the MMT decoding processing unit 841. The second tuner / demodulation unit 832 receives the broadcast wave of the broadcasting service adopting MPEG2-TS as the media transport method via an antenna (not shown), and the user desires based on the control of the main control unit 801. Synchronize (select) the channel of the service to be performed. Further, the second tuner / demodulation unit 832 demodulates the received broadcast signal, acquires the MPEG2-TS data string, and outputs it to the MPEG2-TS decoding processing unit 842.

The MMT decoding processing unit 841 inputs the MMT data string output from the first tuner / demodulation unit 831, and based on the control signal included in the MMT data string, the video data string and the audio data string, which are real-time presentation elements, Separation processing of character super data string, subtitle data string, etc., decoding processing, etc. are performed. The MMT decoding processing unit 841 includes a separation unit 132, a video decoder 141, a video color gamut conversion unit 142, an audio decoder 143, a character super decoder 144, a subtitle decoder 145, and a subtitle synthesis unit 146 in the broadcast receiving device 100 of the first embodiment. It is provided with functions corresponding to the subtitle color gamut conversion unit 147, the data decoder 151, the cache unit 152, the application control unit 153, the browser unit 154, the application color gamut conversion unit 155, the sound source unit 156, and the like. The MMT decoding processing unit 841 can perform various processes described in the first embodiment. Since the details of the various processes are as described in the first embodiment, the description thereof will be omitted.

The MPEG2-TS decoding processing unit 842 inputs the MPEG2-TS data string output from the second tuner / demodulation unit 832, and the video data which is a real-time presentation element based on the control signal included in the MPEG2-TS data string. Separation processing of columns, audio data strings, character super data strings, subtitle data strings, etc., decoding processing, etc. are performed. The MPEG2-TS decoding processing unit 842 has a function equivalent to that of the IRD (Integrated Receiver Decorder) unit of a conventional television receiver that receives broadcast waves of a broadcasting service that employs MPEG2-TS as a media transport method. A detailed description will be omitted.

The video synthesis unit 861 inputs the video information, subtitle information, and application information output from the MMT decoding processing unit 841 and the video information, subtitle information, and application information output from the MPEG2-TS decoding processing unit 842. Perform processing such as selection and / or superimposition as appropriate. The video synthesis unit 861 includes a video RAM (not shown), and the monitor unit 862 and the like are driven based on the video information and the like input to the video RAM. Further, the video compositing unit 861 performs scaling processing, superimposition processing of EPG screen information, and the like, if necessary, based on the control of the main control unit 801. The voice synthesis unit 164 inputs the voice information output from the MMT decoding processing unit 841 and the voice information output from the MPEG2-TS decoding processing unit 842, and appropriately selects and / or performs processing such as mixing.

The LAN communication unit 821 is connected to the Internet 200 via the router device 200r, and transmits / receives data to / from each server device and other communication devices on the Internet 200. Further, the MMT data string (or a part thereof) or the MPEG2-TS data string (or a part thereof) of the program transmitted via the communication line is acquired, and the MMT decoding processing unit 841 or the MPEG2-TS is appropriately obtained. Output to the decoding processing unit 842.

[Time display of broadcast receiver]
In the broadcast receiving device 800 of this embodiment, it is assumed that the current date and the current time can be displayed on the EPG screen, various setting screens, and the like. The information regarding the current date and the current time is transmitted by MH-TOT or the like in a broadcasting service that uses MMT as the media transport method, and MPEG- in a broadcasting service that uses MPEG2-TS as the media transport method. 2 It is transmitted by TOT (Time Offset Table) or the like provided in SI (Service Information) specified in the system. The broadcast receiving device 800 can acquire information on the current date and the current time by referring to the MH-TOT and the TOT.

Further, in general, when the video compositing unit 861 mainly selects the video information or the like output from the MMT decoding processing unit 841, the information regarding the current date and the current time acquired from the MH-TOT is used. When the video compositing unit 861 mainly selects the video information or the like output from the MPEG2-TS decoding processing unit 842 by superimposing it on the video information or the like, the information regarding the current date and the current time acquired from the TOT is described above. It may be controlled so as to be superimposed on the video information or the like.

However, since there are differences in the coding / decoding processing, transmission path, etc. between the broadcasting service that uses MMT as the media transport method and the broadcasting service that uses MPEG2-TS as the media transport method, the current time is displayed in particular. In the above, there is a possibility that inconsistency may occur between the selection of the broadcasting service adopting MMT as the media transport method and the selection of the broadcasting service adopting MPEG2-TS as the media transport method. For example, as shown in FIG. 25, the EPG screen 162g for displaying the channel information of the broadcasting service adopting MMT as the media transport method displays the channel information of the broadcasting service adopting MPEG2-TS as the media transport method. When the screen display is switched to the screen 162h, there is a possibility that the user may feel a visual discomfort due to the inconsistency caused by switching the current time display from the current time display 162g1 to the current time display 162h1.

In the broadcast receiving device 800 of the present embodiment, even when the video compositing unit 861 mainly selects the video information or the like output from the MMT decoding processing unit 841 in order to prevent the user from feeling a visual discomfort. , Information on the current date and the current time acquired from the TOT is controlled to be superimposed on the video information and the like. That is, the content of the broadcasting service that adopts MMT as the media transport method is controlled so as to superimpose the current time information provided by the broadcasting service that adopts MPEG2-TS as the media transport method.

By performing the above control, the broadcast receiving device 800 of the present embodiment always displays the current time information acquired by referring to the TOT when displaying the current time. Therefore, even when switching between a broadcasting service that uses MMT as the media transport method and a broadcasting service that uses MPEG2-TS as the media transport method, the user feels a visual discomfort due to the inconsistency in the display of the current time. It is possible to prevent it from being caused.

Note that FIG. 26A shows an example of selection control of the current time information reference source according to the reception status of each broadcast service in the broadcast receiving device 800 of this embodiment. In the broadcast receiving device 800 of this embodiment, when the broadcasting service adopting MPEG2-TS as the media transport method can be received, the current time information is always acquired by referring to the TOT. , The MH-TOT only when the broadcasting service adopting MPEG2-TS as the media transport method cannot be received and the broadcasting service adopting MMT as the media transport method can be received. Control to get the current time information by referring to.

Further, contrary to the above-mentioned control, the current time information provided by the broadcasting service adopting MMT as the media transport method is superimposed on the content of the broadcasting service adopting MPEG2-TS as the media transport method. Even if it is controlled, the same effect as described above can be obtained.

As described above, when controlling so as to superimpose the current time information provided by the broadcasting service adopting MPEG2-TS as the media transport method on the contents of the broadcasting service adopting MMT as the media transport method. In any case, when the content of the broadcasting service adopting MPEG2-TS as the media transport method is controlled so as to superimpose the current time information provided by the broadcasting service adopting MMT as the media transport method. Also in the above, the current time information can be corrected by referring to the "delta" parameter of the time information in the TMCC extended information area, as described in [Time management of broadcast receiving device] in the first embodiment. It is possible.

Further, in both cases of the broadcasting service adopting MMT as the media transport method and the broadcasting service adopting MPEG2-TS as the media transport method, the MH-TOT or TOT transmitted by each broadcasting service constituting the network is It is possible that there is an error due to a malfunction in the transmitting system or a transmission error. In the broadcast receiving device 800 of the present embodiment, as a countermeasure against the error of the MH-TOT or TOT, when it is determined that the MH-TOT or TOT acquired from the service being received has an error, another device of the same network is used. It has a function to update the time information of the built-in clock by acquiring MH-TOT or TOT from the broadcasting service of the above or from any broadcasting service of other networks and referring to the current time information. And.

FIG. 26B shows an example of the update process of the current time information in the broadcast receiving device 800 of the present embodiment when receiving a broadcast service adopting MPEG2-TS as the media transport method. Even when receiving a broadcast service that employs MMT as the media transport method, the same processing as that shown in the figure can be performed.

When updating the time information of the built-in clock in the broadcast receiving device 800 of this embodiment, first, MPEG2 of the broadcasting service (broadcasting service adopting MPEG2-TS as the media transport method) currently being received by the receiving function executing unit 1102. -The TOT is acquired from the TS data string (S301), and the current time information is acquired by referring to the acquired TOT (S302). Next, the reception function execution unit 1102 performs a process of comparing the current time information acquired in the process of S302 with the time information of the built-in clock.

As a result of the comparison processing, when the difference between the current time information acquired in the processing of S302 and the time information of the built-in clock is within a predetermined value (for example, within 3 minutes) (S303: Yes), the reception function executing unit 1102 The time information of the built-in clock is updated with the current time information acquired in the process of S302 (S306). On the other hand, as a result of the comparison processing, when the difference between the current time information acquired in the processing of S302 and the time information of the built-in clock is not within a predetermined value (S303: No), or the TOT acquired in S301 is included in the data. If it has a flag indicating that there is an error or the like, the reception function execution unit 1102 acquires the TOT from the MPEG2-TS data string of another broadcasting service in the same network, or any of the other networks. MH-TOT is acquired from the MMT data string of the broadcasting service (broadcasting service adopting MMT as the media transport method) (S304), and the current time information is acquired from the acquired TOT or MH-TOT (S305). .. The reception function execution unit 1102 may perform the comparison process of S303 again with the current time information acquired in the process of S305.

By the above processing, when the broadcast receiving device 800 of the present embodiment determines that the MH-TOT or TOT acquired from the service being received has an error, the broadcast receiving device 800 may be from another broadcasting service of the same network or another. By acquiring MH-TOT or TOT from any broadcasting service of the network and referring to the current time information, it is possible to update the time information of the built-in clock.

If the current time information that the difference from the time information of the built-in clock is within the predetermined range cannot be acquired by repeating the processes of S304 to S305, such as at the time of initial setting after factory shipment, it is acquired by the process of S302. The time information of the built-in clock may be set again based on the current time information. By doing so, it is possible to deal with the case where there is an error in the time information side of the built-in clock of the broadcast receiving device 800 of this embodiment.

[EPG display of broadcast receiver]
Event schedule information of a broadcasting service that adopts MMT as a media transport method is transmitted by MH-EIT or the like. On the other hand, the event schedule information of the broadcasting service adopting MPEG2-TS as the media transport method is transmitted by EIT (Event Information Table) or the like provided in SI defined in the MPEG-2 system. Therefore, in general, when displaying video information or the like provided by a broadcasting service that uses MMT as the media transport method, event schedule information (MH-EIT) of the broadcasting service that uses MMT is displayed. ) Is available, and when displaying video information, etc. provided by a broadcasting service that uses MPEG2-TS as the media transport method, event schedule information of the broadcasting service that uses MPEG2-TS. (EIT) can be obtained.

However, the broadcast receiving device 800 of this embodiment is also displaying video information or the like provided by a broadcasting service that employs MMT as the media transport method, or MPEG2-TS as the media transport method. Even when displaying video information or the like provided by the broadcasting service that employs the above, both the MH-EIT and the EIT can be acquired, and the usability for the user is improved.

FIG. 27A shows an example of the EPG screen in the broadcast receiving device 800 of this embodiment. In the figure, the EPG screen 162i is an EPG screen created based on MH-EIT, a broadcasting service that adopts MMT as a media transport method, and is "M1 TV", "M2 broadcasting", "M3 channel", "M4TV". , "Television M5", etc. are the names of broadcasting stations of broadcasting services that have adopted MMT as the media transport method, respectively. The EPG screen 162j is an EPG screen created based on the EIT of a broadcasting service that adopts MPEG2-TS as a media transport method, and is "T6 TV", "T7 broadcasting", "T8 channel", "T9TV". , "TV TA" and the like are the names of broadcasting stations of broadcasting services that adopt MPEG2-TS as the media transport method, respectively.

For example, when a user is instructing to display an EPG screen by operating a remote controller (not shown) while watching a broadcast program provided by a broadcasting service that employs MMT as a media transport method, the initial screen of the EPG screen (shown). Omitted) is displayed. The initial screen of the EPG screen is an EPG screen created based on MH-EIT, a broadcasting service that adopts MMT as a media transport method, and is "17:00 to" of "October 7, 2014 (today)". (Near the current time) ”is displayed with detailed information on the broadcast programs of each channel. Next, the user wants to check the detailed information of the broadcast program of each channel of "20: 00-" of "October 9, 2014", and instructs to update the EPG screen by operating the remote controller (not shown). Then, the EPG screen 162i is displayed.

Furthermore, when the user wants to check the detailed information of the broadcast program provided by the broadcast service that adopts MPEG2-TS as the media transport method and instructs to switch the network by operating the remote controller (not shown), the EPG. The screen 162j is displayed. At this time, in the broadcast receiving device 800 of this embodiment, the initial screen of the EPG screen created based on the EIT of the broadcasting service adopting MPEG2-TS as the media transport method (that is, "October 7, 2014" (Detailed information of the broadcast program of each channel of "17:00 ~"), but the same time zone as the EPG screen 162i displayed immediately before (that is, "20:00 ~" of "October 9, 2014" 』) Control to display detailed information of the broadcast program of each channel.

With the above-mentioned control, the user can continuously confirm detailed information about broadcast programs of the same day and the same time zone of a plurality of networks having different media transport methods by a simple operation. That is, the usability of the broadcast receiving device 800 is improved.

FIG. 27B is a diagram showing an example different from the above on the EPG screen in the broadcast receiving device 800 of this embodiment. The EPG screen 162k shows a state in which the EPG screen 162i shown in FIG. 27A is scrolled in the channel direction (horizontal direction) by operating a remote controller (not shown). That is, in the example shown in FIG. 27B, the channel information and media created based on the MH-EIT of the broadcasting service that adopts MMT as the media transport method by scrolling the EPG screen in the channel direction (horizontal direction). Channel information created based on the EIT of a broadcasting service that uses MPEG2-TS as the transport method is seamlessly displayed on the same time axis.

Therefore, it is created based on the EIT of the broadcasting service that adopts MPEG2-TS as the media transport method while the user is checking the channel information created based on the MH-EIT of the broadcasting service that adopts MMT as the media transport method. Even when it is desired to confirm the channel information, it is possible to eliminate the need for an instruction to switch the network by operating a remote controller (not shown). Further, the user can simultaneously confirm detailed information about broadcast programs of the same day and the same time zone of a plurality of networks having different media transport methods. That is, the usability of the broadcast receiving device 800 is improved.

(Example 3)
Hereinafter, Example 3 of the present invention will be described. The configuration, treatment, effect, etc. in this embodiment shall be the same as those in Example 1 and Example 2 unless otherwise specified. Therefore, in the following, the differences between the present embodiment and the first and second embodiments will be mainly described, and the common points will be omitted as much as possible to avoid duplication. Further, in this embodiment, the operation / control at the time of receiving the multimedia service will be described.

FIG. 28 shows an example of an external view of the remote controller 100R used for inputting an operation instruction to the broadcast receiving device 100 of this embodiment. Similar to the above embodiment, the remote controller 100R transmits a control signal or control information to the operation input unit of the broadcast receiving device 100 via infrared rays, wireless communication, or the like in response to a user pressing a key or a button. It realizes the control of the broadcast receiving device 100. The remote controller 100R of this embodiment also has the same keys or buttons as the remote controller shown in FIG. 15A (hereinafter, these are simply referred to as “keys”), and further, the remote controller 100R of this embodiment has multimedia. It is assumed that the multimedia key 100R9 used for instructing the reception of the service is provided. Further, the broadcast receiving device 100 of the present embodiment is a television receiver that supports both the MMT system and the MPEG2-TS system as the media transport system, as in the broadcast receiving device of the second embodiment. It is assumed that the receiving network can be switched by the switching key 100RA. That is, by pressing the "BS" key of the network switching key 100RA or the like, in this embodiment, the 2K broadcast by the MPEG2-TS method may be received, and the "advanced" key of the network switching key 100RA is pressed. By doing so, it may be possible to receive 4K / 8K broadcasting by the MMT method.

In the broadcast receiving device 100 of this embodiment, the operation when the multimedia key 100R9 is pressed is transmitted by the broadcast program (2K broadcast broadcast program) transmitted by the broadcast receiving device 100 in the MPEG2-TS system and in the MMT system. Which of the broadcast programs (4K / 8K broadcast broadcast programs) to be received and displayed, and whether the broadcast receiving device 100 can communicate with each server device (service provider server 400, etc.) on the Internet 200. It depends on whether or not it is. These determinations may be made in the main control unit of the broadcast receiving device 100 described in the above-described embodiment. FIG. 29 shows an outline of the operation when the multimedia key 100R9 is pressed in the broadcast receiving device 100 of this embodiment. In the following description and drawings, the multimedia service may be referred to as an MM service, and the multimedia key may be referred to as an MM key.

Hereinafter, the details of the operation when the MM key 100R9 of the broadcast receiving device 100 of this embodiment is pressed under each condition shown in the figure will be described.

[Operation when receiving and displaying MPEG2-TS broadcast programs]
As shown in FIG. 29, when the broadcast receiving device 100 receives and displays a broadcast program (2K broadcast broadcast program) transmitted by the MPEG2-TS method, the broadcast receiving device 100 is further on the Internet 200. The broadcast receiving device 100 of this embodiment depends on conditions such as whether or not it is possible to communicate with each server device and whether or not the broadcast program being received is compatible with Hybridcast or data broadcasting. It is assumed that each operation of [Operation example 11] to [Operation example 18] is possible.

Here, "Hybridcast" is a broadcasting cooperation technology defined by the IPTV Forum (IPTV FORUM JAPAN), and specifically, a display linked with a broadcasting program transmitted by the MPEG2-TS method. The data to be performed (hybrid cast data) is distributed to the broadcast receiver via the IP communication network, and the display of the broadcast program transmitted by the MPEG2-TS method in the broadcast receiver and the display using the hybrid cast data are displayed. It is a broadcasting communication cooperation technology that displays in cooperation. In this embodiment, in the broadcast receiving device 100 of the second embodiment, when the MPEG2-TS decoding processing unit 842 supports hybrid cast, the MPEG2-TS decoding processing unit 842 receives the data in the second tuner / demodulation unit 832. The broadcast program transmitted by the MPEG2-TS method is decoded, the hybrid cast data acquired from the external server is decoded via the LAN communication unit 821, and the decoded data of both are displayed in cooperation with each other. Since the detailed operation is disclosed in the standard published by the IPTV forum, the description thereof is omitted here.

"Data broadcasting" is a technology defined by the Association of Radio Industries and Businesses (ARIB) in its STD-B24 standard, and is data transmitted in multiple streams together with a broadcast program transmitted in the MPEG2-TS system. The broadcast receiving device receives the broadcast media (text, still image, video, audio, etc.), and the broadcast receiving device displays or outputs the broadcast media. In this embodiment, in the broadcast receiving device 100 of the second embodiment, the data broadcast data is multiplexed and transmitted to the stream of the broadcast program transmitted by the MPEG2-TS method received by the second tuner / demodulator 832. In this case, the MPEG2-TS decoding processing unit 842 can decode both the video data of the broadcast program and the data of the data broadcast, and can display the decoded data of both at the same time. Since the detailed operation is disclosed in the standard issued by the Association of Radio Industries and Businesses, the description thereof is omitted here.

[Operation example 11]
Broadcasting when the MM key 100R9 is pressed when the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, does not support Hybridcast, and is receiving a broadcast program that supports data broadcasting. The operation of the receiving device 100 is shown in FIG. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, the operation may be different depending on whether or not the broadcast program being received is a program set to automatically start the data broadcasting screen.

In the following [Operation example 11-1] and [Operation example 11-2], only one of them may be selected and operated / controlled. Similarly, in the following [Operation Example 11-3] and [Operation Example 11-4], only one of them may be selected and operated / controlled.

-Operation example 11-1
When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the display of the data broadcast screen is continued. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the screen may return to the broadcasting program screen. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 11-2
When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the display of the data broadcast screen is continued. If you perform "pressing the MM key (first time)" in this state, a message indicating that the pressing of the MM key is invalid while the data broadcasting screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, the display of the data broadcasting screen is continued until the broadcasting receiving device 100 receives a command instructing the end of the data broadcasting screen from the broadcasting wave or the user changes the channel selection, that is, the broadcasting station side broadcasts the data. It is possible to control the display / non-display of the screen.

-Operation example 11-3
If the broadcast program being received is a program set to automatically start the data broadcast screen, and further, if the program is set to hide the data broadcast screen displayed by the automatic start after a predetermined time, the "MM key" is used. Before pressing, the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden again, and the screen may return to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the data broadcasting screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 11-4
If the broadcast program being received is a program set to automatically start the data broadcast screen, and further, if the program is set to hide the data broadcast screen displayed by the automatic start after a predetermined time, the "MM key" is used. Before pressing, the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the data broadcasting screen whose display has been terminated by the control of the broadcasting station from being redisplayed by a user instruction.

-Operation example 11-5
When the broadcast program being received is a program set so that the data broadcast screen is not automatically activated, the data broadcast screen remains hidden and the screen of the broadcast program continues to be displayed "before pressing the MM key". To do. In this state, if "pressing the MM key (first time)" is performed, the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden and the screen may be returned to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

[Operation example 12]
The operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200 and is receiving a broadcast program that does not correspond to Hybridcast and data broadcasting. It is shown in FIG.

-Operation example 12-1
Since the broadcast program being received is a program that does not correspond to the Hybridcast service and the data broadcasting service, the screen of the broadcast program continues to be displayed "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. With such an operation, it is possible to notify the user that the program does not correspond to a service such as data broadcasting.

[Operation example 13]
Broadcasting when the MM key 100R9 is pressed when the broadcast receiving device 100 is capable of communicating with each server device on the Internet 200, does not support Hybridcast, and is receiving a broadcast program that supports data broadcasting. The operation of the receiving device 100 is shown in FIG. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, the operation may be different depending on whether or not the broadcast program being received is a program set to automatically start the data broadcasting screen.

In addition, only one of the following [Operation example 13-1] and [Operation example 13-2] and the following [Operation example 13-3] and [Operation example 13-4] are selected and operated / It may be controlled.

-Operation example 13-1
When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the display of the data broadcast screen is continued. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the screen may return to the broadcasting program screen. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 13-2
When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the display of the data broadcast screen is continued. If you perform "pressing the MM key (first time)" in this state, a message indicating that the pressing of the MM key is invalid while the data broadcasting screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, the display of the data broadcasting screen is continued until the broadcasting receiving device 100 receives a command instructing the end of the data broadcasting screen from the broadcasting wave or the user changes the channel selection, that is, the broadcasting station side broadcasts the data. It is possible to control the display / non-display of the screen.

-Operation example 13-3
If the broadcast program being received is a program set to automatically start the data broadcast screen, and further, if the program is set to hide the data broadcast screen displayed by the automatic start after a predetermined time, the "MM key" is used. Before pressing, the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden again, and the screen may return to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the data broadcasting screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 13-4
If the broadcast program being received is a program set to automatically start the data broadcast screen, and further, if the program is set to hide the data broadcast screen displayed by the automatic start after a predetermined time, the "MM key" is used. Before pressing, the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the data broadcasting screen whose display has been terminated by the control of the broadcasting station from being redisplayed by a user instruction.

-Operation example 13-5
When the broadcast program being received is a program set so that the data broadcast screen is not automatically activated, the data broadcast screen remains hidden and the screen of the broadcast program continues to be displayed "before pressing the MM key". To do. In this state, if "pressing the MM key (first time)" is performed, the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden and the screen may be returned to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

[Operation example 14]
The operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is able to communicate with each server device on the Internet 200 and is receiving a broadcast program that does not correspond to Hybridcast and data broadcasting. It is shown in FIG.

-Operation example 14-1
Since the broadcast program being received is a program that does not correspond to the Hybridcast service and the data broadcasting service, the screen of the broadcast program continues to be displayed "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. With such an operation, it is possible to notify the user that the program does not correspond to a service such as data broadcasting.

[Operation example 15]
The operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program corresponding to Hybridcast and data broadcasting in a state where it cannot communicate with each server device on the Internet 200. It is shown in FIGS. 34 and 35. FIG. 34 is an example in which the data broadcasting service is prioritized over the Hybridcast service, and FIG. 35 is an example in which the data broadcasting service is not prioritized over the Hybridcast service. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, whether or not the broadcast program being received is a program set to automatically start the Hybridcast service screen is set to automatically start the data broadcasting screen. The operation may differ depending on whether or not the program is.

The following [Operation example 15-1] and [Operation example 15-2], the following [Operation example 15-3] and [Operation example 15-4], and the following [Operation example 15-6] and [Operation example 15-] 7], the following [Operation example 15-8] and [Operation example 15-9], and the following [Operation example 15-10] and [Operation example 15-11] are operated by selecting only one of them. / It may be controlled.

-Operation example 15-1
If the broadcast program being received is a program that prioritizes the data broadcasting service over the Hybridcast service and is set to automatically start the data broadcasting screen, the data broadcasting screen is automatically started before "before pressing the MM key". Display and then continue displaying the data broadcasting screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the screen may return to the broadcasting program screen. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 15-2
If the broadcast program being received is a program that prioritizes the data broadcasting service over the Hybridcast service and is set to automatically start the data broadcasting screen, the data broadcasting screen is automatically started before "before pressing the MM key". Display and then continue displaying the data broadcasting screen. If you perform "pressing the MM key (first time)" in this state, a message indicating that the pressing of the MM key is invalid while the data broadcasting screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, the display of the data broadcasting screen is continued until the broadcasting receiving device 100 receives a command instructing the end of the data broadcasting screen from the broadcasting wave or the user changes the channel selection, that is, the broadcasting station side broadcasts the data. It is possible to control the display / non-display of the screen.

-Operation example 15-3
The broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service, is a program that is set to automatically start the data broadcast screen, and further, the data broadcast screen displayed by the automatic start is not displayed after a predetermined time. In the case of a program set to be displayed, the data broadcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden again, and the screen may return to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the data broadcasting screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 15-4
The broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service, is a program that is set to automatically start the data broadcast screen, and further, the data broadcast screen displayed by the automatic start is not displayed after a predetermined time. In the case of a program set to be displayed, the data broadcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the data broadcasting screen whose display has been terminated by the control of the broadcasting station from being redisplayed by a user instruction.

-Operation example 15-5
If the broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service and is set so that the data broadcast screen is not automatically activated, the data broadcast screen is hidden in "Before pressing the MM key". Until then, the display of the screen of the broadcast program continues. In this state, if "pressing the MM key (first time)" is performed, the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden and the screen may be returned to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 15-6
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, if the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the data broadcast screen is displayed. continue. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the screen may return to the broadcasting program screen. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 15-7
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, if the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast screen is automatically started and displayed "before pressing the MM key", and then the data broadcast screen is displayed. continue. If you perform "pressing the MM key (first time)" in this state, a message indicating that the pressing of the MM key is invalid while the data broadcasting screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, the display of the data broadcasting screen is continued until the broadcasting receiving device 100 receives a command instructing the end of the data broadcasting screen from the broadcasting wave or the user changes the channel selection, that is, the broadcasting station side broadcasts the data. It is possible to control the display / non-display of the screen.

-Operation example 15-8
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, the broadcast program being received is a program set to automatically start the data broadcast screen, and further, a program set to hide the data broadcast screen displayed by the automatic start after a predetermined time. , "Before pressing the MM key", the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden again, and the screen may return to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the data broadcasting screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 15-9
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, the broadcast program being received is a program set to automatically start the data broadcast screen, and further, a program set to hide the data broadcast screen displayed by the automatic start after a predetermined time. , "Before pressing the MM key", the data broadcast screen is automatically started and displayed once, and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the data broadcasting screen whose display has been terminated by the control of the broadcasting station from being redisplayed by a user instruction.

-Operation example 15-10
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, if the broadcast program being received is a program set so that the data broadcast screen is not automatically started, the data broadcast screen remains hidden and the screen of the broadcast program is displayed before "MM key is pressed". May continue. In this state, if "pressing the MM key (first time)" is performed, the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden and the screen may be returned to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast program screen is not automatically started before "before pressing the MM key", and the operation of the operation example 15-10 is performed. / Control may be performed.

-Operation example 15-11
Even if the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, if the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, the Hybridcast service should be started. Can't. In this state, if the broadcast program being received is a program set so that the data broadcast screen is not automatically started, the data broadcast screen remains hidden and the screen of the broadcast program is displayed before "MM key is pressed". May continue. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. With such an operation, it is possible to notify the user that the hybridcast service or the like cannot be supported.

When the broadcast program being received is a program set to automatically start the data broadcast screen, the data broadcast program screen is not automatically started before "before pressing the MM key", and the operation of the operation example 15-11 is performed. / Control may be performed.

[Operation example 16]
Broadcast reception when the MM key 100R9 is pressed when the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200 and is receiving a broadcast program that supports Hybridcast and does not support data broadcasting. The operation of the device 100 is shown in FIG.

-Operation example 16-1
Even if the broadcast program being received is a program corresponding to the Hybridcast service, the Hybridcast service cannot be started when the broadcast receiving device 100 is not communicable with each server device on the Internet 200. In this state, the display of the screen of the broadcast program may continue "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. With such an operation, it is possible to notify the user that the hybridcast service or the like cannot be supported.

[Operation example 17]
The operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program corresponding to Hybridcast and data broadcasting in a state where it can communicate with each server device on the Internet 200. 37 and 38 are shown. FIG. 37 is an example in which the data broadcasting service is prioritized over the Hybridcast service, and FIG. 38 is an example in which the data broadcasting service is not prioritized over the Hybridcast service. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, whether or not the broadcast program being received is a program set to automatically start the Hybridcast service screen is set to automatically start the data broadcasting screen. The operation may differ depending on whether or not the program is.

The following [Operation example 17-1], [Operation example 17-2] and [Operation example 17-3], the following [Operation example 17-4] and [Operation example 17-5], and the following [Operation example 17-] 7], [Operation example 17-8] and [Operation example 17-9], and the following [Operation example 17-10] and [Operation example 17-11] are operated by selecting only one of them. / It may be controlled.

-Operation example 17-1
If the broadcast program being received is a program that prioritizes the data broadcasting service over the Hybridcast service and is set to automatically start the data broadcasting screen, the data broadcasting screen is automatically started before "before pressing the MM key". Display and then continue displaying the data broadcasting screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the screen may return to the broadcasting program screen. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 17-2
If the broadcast program being received is a program that prioritizes the data broadcasting service over the Hybridcast service and is set to automatically start the data broadcasting screen, the data broadcasting screen is automatically started before "before pressing the MM key". Display and then continue displaying the data broadcasting screen. If you perform "pressing the MM key (first time)" in this state, a message indicating that the pressing of the MM key is invalid while the data broadcasting screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, the display of the data broadcasting screen is continued until the broadcasting receiving device 100 receives a command instructing the end of the data broadcasting screen from the broadcasting wave or the user changes the channel selection, that is, the broadcasting station side broadcasts the data. It is possible to control the display / non-display of the screen.

-Operation example 17-3
If the broadcast program being received is a program that prioritizes the data broadcasting service over the Hybridcast service and is set to automatically start the data broadcasting screen, the data broadcasting screen is automatically started before "before pressing the MM key". Display and then continue displaying the data broadcasting screen. When "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be hidden and the Hybridcast screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen may be hidden and the broadcast program screen may be displayed. With such an operation, it is possible to easily switch between the data broadcasting screen and the Hybridcast screen according to the instruction of the user.

-Operation example 17-4
The broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service, is a program that is set to automatically start the data broadcast screen, and further, the data broadcast screen displayed by the automatic start is not displayed after a predetermined time. In the case of a program set to be displayed, the data broadcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the data broadcasting screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden again, and the screen may return to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the data broadcasting screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 17-5
The broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service, is a program that is set to automatically start the data broadcast screen, and further, the data broadcast screen displayed by the automatic start is not displayed after a predetermined time. In the case of a program set to be displayed, the data broadcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the data broadcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the data broadcasting screen whose display has been terminated by the control of the broadcasting station from being redisplayed by a user instruction.

-Operation example 17-6
If the broadcast program being received is a program that prioritizes the data broadcast service over the Hybridcast service and is set so that the data broadcast screen is not automatically activated, the data broadcast screen is hidden in "Before pressing the MM key". Until then, the display of the screen of the broadcast program continues. In this state, if "pressing the MM key (first time)" is performed, the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen is hidden and the screen may be returned to the broadcasting program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the data broadcasting screen according to the instruction of the user.

-Operation example 17-7
If the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service and is set to automatically activate the Hybridcast screen, the Hybridcast screen is automatically activated and displayed before "MM key is pressed". After that, the display of the Hybridcast screen is continued. If the "MM key is pressed (first time)" is performed in this state, the Hybridcast screen may be hidden and the screen may be returned to the broadcast program screen. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the Hybridcast screen according to the instruction of the user.

-Operation example 17-8
If the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service and is set to automatically activate the Hybridcast screen, the Hybridcast screen is automatically activated and displayed before "MM key is pressed". After that, the display of the Hybridcast screen is continued. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the Hybridcast screen is displayed (for example, "This key cannot be used at present", etc. ) May be displayed. In this case, the display of the Hybridcast screen is continued until the broadcast receiving device 100 receives a command instructing the end of the Hybridcast screen from the broadcast wave or the user changes the channel selection, that is, the broadcasting station side displays the Hybridcast screen. / It becomes possible to control the non-display.

-Operation example 17-9
If the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service and is set to automatically activate the Hybridcast screen, the Hybridcast screen is automatically activated and displayed before "MM key is pressed". After that, the display of the Hybridcast screen is continued. When "pressing the MM key (first time)" is performed in this state, the Hybridcast screen may be hidden and the data broadcasting screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the data broadcasting screen may be hidden and the broadcast program screen may be displayed. With such an operation, it is possible to easily switch between the Hybridcast screen and the data broadcasting screen according to the instruction of the user.

-Operation example 17-10
The broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, is a program that is set to automatically start the Hybridcast screen, and further hides the Hybridcast screen displayed by the automatic activation after a predetermined time. In the case of a program set to be set to be set, the Hybridcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the Hybridcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the Hybridcast screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen is hidden again, and the screen of the broadcast program may be returned. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the Hybridcast screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 17-11
The broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service, is a program that is set to automatically start the Hybridcast screen, and further hides the Hybridcast screen displayed by the automatic activation after a predetermined time. In the case of a program set to be set to be set, the Hybridcast screen is automatically started and displayed once "before pressing the MM key", and after a predetermined time, the Hybridcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the Hybridcast screen, whose display has been terminated by the control of the broadcasting station, from being redisplayed by a user instruction.

-Operation example 17-12
If the broadcast program being received is a program that prioritizes the Hybridcast service over the data broadcasting service and is set so that the Hybridcast service is not automatically started, the Hybridcast screen remains hidden during "Before pressing the MM key". Yes, the display of the screen of the broadcast program continues. If "pressing the MM key (first time)" is performed in this state, the Hybridcast screen may be displayed. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen is hidden and the screen may be returned to the broadcast program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the Hybridcast screen according to the instruction of the user.

[Operation example 18]
Broadcast reception when the MM key 100R9 is pressed when the broadcast receiving device 100 is capable of communicating with each server device on the Internet 200 and is receiving a broadcast program that supports Hybridcast and does not support data broadcasting. The operation of the device 100 is shown in FIG. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, the operation may be different depending on whether or not the broadcast program being received is a program set to automatically start the Hybridcast service screen.

In addition, only one of the following [Operation example 18-1] and [Operation example 18-2] and the following [Operation example 18-3] and [Operation example 18-4] are selected and operated / It may be controlled.

-Operation example 18-1
When the broadcast program being received is a program set to automatically start the Hybridcast screen, the Hybridcast screen is automatically started and displayed "before pressing the MM key", and then the display of the Hybridcast screen is continued. If the "MM key is pressed (first time)" is performed in this state, the Hybridcast screen may be hidden and the screen may be returned to the broadcast program screen. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen may be displayed again. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the Hybridcast screen according to the instruction of the user.

-Operation example 18-2
When the broadcast program being received is a program set to automatically start the Hybridcast screen, the Hybridcast screen is automatically started and displayed "before pressing the MM key", and then the display of the Hybridcast screen is continued. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the Hybridcast screen is displayed (for example, "This key cannot be used at present", etc. ) May be displayed. In this case, the display of the Hybridcast screen is continued until the broadcast receiving device 100 receives a command instructing the end of the Hybridcast screen from the broadcast wave or the user changes the channel selection, that is, the broadcasting station side displays the Hybridcast screen. / It becomes possible to control the non-display.

-Operation example 18-3
If the broadcast program being received is a program set to automatically start the Hybridcast screen, and further, a program set to hide the Hybridcast screen displayed by automatic startup after a predetermined time, "Before pressing the MM key" ], The Hybridcast screen is automatically started and displayed once, and after a predetermined time, the Hybridcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the Hybridcast screen may be displayed again. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen is hidden again, and the screen of the broadcast program may be returned. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, the Hybridcast screen once hidden can be arbitrarily displayed according to the user's instruction.

-Operation example 18-4
If the broadcast program being received is a program set to automatically start the Hybridcast screen, and further, a program set to hide the Hybridcast screen displayed by automatic startup after a predetermined time, "Before pressing the MM key" ], The Hybridcast screen is automatically started and displayed once, and after a predetermined time, the Hybridcast screen is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to prevent the Hybridcast screen, whose display has been terminated by the control of the broadcasting station, from being redisplayed by a user instruction.

-Operation example 18-5
When the broadcast program being received is a program set so that the Hybridcast screen is not automatically started, the Hybridcast screen remains hidden and the display of the broadcast program screen continues before "MM key is pressed". If "pressing the MM key (first time)" is performed in this state, Hybridcast may be displayed. Further, when the "MM key is pressed (second time)" is performed, the Hybridcast screen is hidden and the screen may be returned to the broadcast program screen. After that, each time the MM key is pressed, the above operation is repeated. With such an operation, it is possible to easily switch the display / non-display of the Hybridcast screen according to the instruction of the user.

[Operation when receiving and displaying MMT broadcast programs]
As shown in FIG. 29, when the broadcast receiving device 100 receives and displays a broadcast program (broadcast program of 4K / 8K broadcast) transmitted by the MMT method, the broadcast receiving device 100 is further on the Internet 200. Depending on conditions such as whether or not communication is possible with each server device and whether or not the broadcast program being received is compatible with the MM service and the above-mentioned LCT control, the broadcast receiving device 100 of this embodiment is [ It is assumed that each of the operations of Operation Example 21] to [Operation Example 28] is possible. In the following description of LCT control, when the area 0 is displayed in full screen, it means that the area 0 is displayed in the default layout. The control for switching between the layout for displaying the area 0 in full screen and the other layout can be said to be the control for switching between the default layout and the other layout.

[Operation example 21]
Operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program corresponding to the MM service and the LCT control in a state where the broadcast receiving device 100 cannot communicate with each server device on the Internet 200. Is shown in FIGS. 40 to 43. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, whether or not the broadcast program being received is a program set to automatically start the MM service, the data of the MM service is obtained from the broadcast wave. The operation may differ depending on whether it is acquired from the network or acquired from the network. FIG. 40 is a program set to automatically start the MM service, and is an example in the case of acquiring the data of the MM service from the broadcast wave. FIG. 41 is a program set to automatically start the MM service. This is an example of acquiring MM service data from the network. FIG. 42 is a program set not to automatically start the MM service, and is an example in the case of acquiring the data of the MM service from the broadcast wave. FIG. 43 is a program set not to start the MM service automatically. This is an example of acquiring MM service data from the network.

The following [Operation example 21-1] to [Operation example 21-5], the following [Operation example 21-6] to [Operation example 21-10], and the following [Operation example 21-11] to [Operation example 21-] 13] and the following [Operation example 21-17] to [Operation example 21-21] may be operated / controlled by selecting only one of them.

-Operation example 21-1
When the receiving broadcast program is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the broadcast program is set to "before pressing the MM key". In area 0 of the state in which LCT control is applied to the screen (a state in which area 0 and other areas exist. Hereinafter, the expression "state in which LCT control is applied" has the same meaning). The MM service is automatically started and displayed, and then the screen display of the MM service is continued. If the "MM key is pressed (first time)" is performed in this state, the MM service in the area 0 may be terminated and the screen display of the broadcast program may be returned while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation examples 21-2 to 4
When the receiving broadcast program is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the broadcast program is set to "before pressing the MM key". The MM service is automatically started and displayed in the area 0 in which the LCT control is applied to the screen, and then the screen display of the MM service is continued. If "pressing the MM key (first time)" is performed in this state, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 21-2) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 21-3) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 21-4) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-5
When the receiving broadcast program is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the broadcast program is set to "before pressing the MM key". The MM service is automatically started and displayed in the area 0 in which the LCT control is applied to the screen, and then the screen display of the MM service is continued. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid (for example, "this key cannot be used at present") may be displayed. .. In this case, the screen display of the MM service in the area 0 is continued until the broadcast receiving device 100 receives a command instructing the end of the MM service from the broadcast wave or the user changes the channel selection, that is, the broadcasting station side It is possible to control the start / end of the MM service.

-Operation example 21-6 to 7
The broadcast program being received is a program set to automatically start the MM service, the data of the MM service is set to be acquired from the broadcast wave, and the screen display of the automatically started MM service is displayed. If the program is set to end after a predetermined time, the MM service is automatically started and temporarily displayed in the area 0 in which the LCT control is applied to the screen of the broadcast program "before pressing the MM key". Then, after a predetermined time, the screen of the MM service is hidden and the screen returns to the screen of the broadcast program. If the "MM key is pressed (first time)" is performed in this state, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service in the area 0 may be terminated again to return to the screen display of the broadcast program while maintaining the LCT control. (Operation example 21-6) Alternatively, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. (Operation Example 21-7) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-8 to 10
The broadcast program being received is a program set to automatically start the MM service, the data of the MM service is set to be acquired from the broadcast wave, and the screen display of the automatically started MM service is displayed. If the program is set to end after a predetermined time, the MM service is automatically started and temporarily displayed in the area 0 in which the LCT control is applied to the screen of the broadcast program "before pressing the MM key". Then, after a predetermined time, the screen of the MM service is hidden and the screen returns to the screen of the broadcast program. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 21-8) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 21-9) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 21-10) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-11
When the receiving broadcast program is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the broadcast program is set to "before pressing the MM key". The LCT control applied to the screen is terminated, the display shifts to the full screen display, and the MM service is started and displayed. If the "MM key is pressed (first time)" is performed in this state, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the full screen display may be continued. Further, when the "MM key is pressed (second time)" is performed, the MM service may be restarted while the full screen display is continued. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 21-12 to 13
When the receiving broadcast program is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the broadcast program is set to "before pressing the MM key". The LCT control applied to the screen is terminated, the display shifts to the full screen display, and the MM service is started and displayed. If "pressing the MM key (first time)" is performed in this state, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the LCT control may be performed again. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. (Operation example 21-12) Alternatively, the LCT control applied to the screen of the broadcast program may be terminated to shift to full-screen display, and the MM service may be restarted for display. .. (Operation Example 21-13) With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 21-14
The broadcast program being received is a program set to automatically start the MM service, the data of the MM service is set to be acquired from the broadcast wave, and the screen display of the automatically started MM service is displayed. If the program is set to end after a predetermined time, before "before pressing the MM key", the LCT control applied to the screen of the broadcast program is terminated to shift to full screen display, and further, the MM service is provided. It starts and is displayed once, and after a predetermined time, the screen of the MM service is hidden and the screen returns to the broadcast program screen. At this time, the LCT control is still finished. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted while the full screen display is continued. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated again while the full screen display is continued. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 21-15
The broadcast program being received is a program set to automatically start the MM service, the data of the MM service is set to be acquired from the broadcast wave, and the screen display of the automatically started MM service is displayed. If the program is set to end after a predetermined time, before "before pressing the MM key", the LCT control applied to the screen of the broadcast program is terminated to shift to full screen display, and further, the MM service is provided. It starts and is displayed once, and after a predetermined time, the screen of the MM service is hidden and the screen returns to the broadcast program screen. At this time, the LCT control is executed again. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the LCT control may be performed again. With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-16
If the broadcast program being received is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the network, the screen of the broadcast program is displayed "before pressing the MM key". On the other hand, LCT control is performed, but since the data of the MM service cannot be acquired from the network, the screen display of the broadcast program is continued even in the area 0. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to notify the user that the MM service cannot be started.

-Operation example 21-17-18
If the broadcast program being received is a program that is set not to automatically start the MM service and is set to acquire the data of the MM service from the broadcast wave, the broadcast program is set to "Before pressing the MM key". Although LCT control is applied to the screen of, the MM service is not automatically started, and the screen display of the broadcast program is continued even in the area 0. If the "MM key is pressed (first time)" is performed in this state, the MM service may be started and displayed in the area 0 while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service in the area 0 may be terminated and the screen display of the broadcast program may be returned while maintaining the LCT control. (Operation example 21-17) Alternatively, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. (Operation Example 21-18) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-19 to 21
If the broadcast program being received is a program that is set not to automatically start the MM service and is set to acquire the data of the MM service from the broadcast wave, the broadcast program is set to "Before pressing the MM key". Although LCT control is applied to the screen of, the MM service is not automatically started, and the screen display of the broadcast program is continued even in the area 0. If "pressing the MM key (first time)" is performed in this state, the MM service may be started after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 21-19) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 21-20) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 21-21) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 21-22
If the broadcast program being received is a program that is set not to automatically start the MM service and is set to acquire the data of the MM service from the network, the screen of the broadcast program is displayed "before pressing the MM key". On the other hand, LCT control is applied, but the MM service is not automatically started, and the screen display of the broadcast program is continued even in the area 0. If "pressing the MM key (first time)" is performed in this state, the data of the MM service cannot be acquired from the network, so a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed is displayed. (For example, "This key cannot be used at this time", etc.) may be displayed. In this case, it is possible to notify the user that the MM service cannot be started.

[Operation example 22]
Broadcasting when the MM key 100R9 is pressed when the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200 and is receiving a broadcast program that supports the MM service and does not support the LCT control. The operation of the receiving device 100 is shown in FIGS. 44 to 47. Further, in the broadcast receiving device 100 of the present embodiment, even under the above conditions, whether or not the broadcast program being received is a program set to automatically start the MM service, the data of the MM service is obtained from the broadcast wave. The operation may differ depending on whether it is acquired from the network or acquired from the network. FIG. 44 is a program set to automatically start the MM service, and is an example in the case of acquiring the data of the MM service from the broadcast wave. FIG. 45 is a program set to automatically start the MM service. This is an example of acquiring MM service data from the network. FIG. 46 is a program set not to automatically start the MM service, and is an example in the case of acquiring the data of the MM service from the broadcast wave. FIG. 47 is a program set not to start the MM service automatically. This is an example of acquiring MM service data from the network.

-Operation example 22-1
If the broadcast program being received is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the broadcast wave, the MM service is automatically started "before pressing the MM key". Start with to display the full screen, and then continue the screen display of the MM service. If the "MM key is pressed (first time)" is performed in this state, the MM service may be terminated and the screen display of the broadcast program may be restored. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again with the full screen display. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 22-2
The broadcast program being received is a program set to automatically start the MM service, the data of the MM service is set to be acquired from the broadcast wave, and the screen display of the automatically started MM service is displayed. If the program is set to end after a predetermined time, the MM service is automatically started "before pressing the MM key" to display the full screen once, and the screen of the MM service is hidden after a predetermined time to display the broadcast program. Return to the screen. If "pressing the MM key (first time)" is performed in this state, the MM service may be started and displayed again with the full screen display. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated again and the screen display of the broadcast program may be restored. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 22-3
If the broadcast program being received is a program set to automatically start the MM service and the data of the MM service is set to be acquired from the network, the data of the MM service cannot be acquired from the network. "Before pressing the key", the screen display of the broadcast program is continued. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed (for example, "This key cannot be used at present"). Etc.) may be displayed. In this case, it is possible to notify the user that the MM service cannot be started.

-Operation example 22-4
If the broadcast program being received is a program that is set not to automatically start the MM service and is set to acquire the data of the MM service from the broadcast wave, the MM service is set to "before pressing the MM key". The screen display of the broadcast program is continued without being automatically started. If "pressing the MM key (first time)" is performed in this state, the MM service may be started and displayed while the full screen is displayed. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated and the screen display of the broadcast program may be restored. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 22-5
If the broadcast program being received is a program that is set not to automatically start the MM service and is set to acquire the data of the MM service from the network, the MM service is automatically set to "before pressing the MM key". The screen display of the broadcast program is continued without being started. If "pressing the MM key (first time)" is performed in this state, the data of the MM service cannot be acquired from the network, so a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed is displayed. (For example, "This key cannot be used at this time", etc.) may be displayed. In this case, it is possible to notify the user that the MM service cannot be started.

[Operation example 23]
When the MM key 100R9 is pressed when the broadcast receiving device 100 is not able to communicate with each server device on the Internet 200, is not compatible with the MM service, and is receiving a broadcast program compatible with LCT control. The operation of the broadcast receiving device 100 is shown in FIG.

-Operation example 23-1
When the broadcast program being received is a program that does not correspond to the MM service, the screen display in a state where the LCT control is applied to the screen of the broadcast program is continued before "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that pressing the MM key is invalid while the broadcast program screen is displayed while LCT control is applied (for example,). "Currently this key cannot be used" etc.) may be displayed. In this case, it is possible to notify the user that the program does not correspond to the MM service.

[Operation example 24]
Operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program that does not correspond to the MM service and the LCT control in a state where the broadcast receiving device 100 cannot communicate with each server device on the Internet 200. Is shown in FIG.

-Operation example 24-1
If the broadcast program being received is a program that does not correspond to the MM service, the full-screen display of the broadcast program is continued before "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed in full screen (for example, "Currently this key is used". "Cannot be done" etc.) may be displayed. In this case, it is possible to notify the user that the program does not correspond to the MM service.

[Operation example 25]
Operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program corresponding to the MM service and the LCT control in a state where the broadcast receiving device 100 can communicate with each server device on the Internet 200. Is shown in FIGS. 50 to 51. Further, the broadcast receiving device 100 of the present embodiment may operate differently even under the above conditions depending on whether or not the broadcast program being received is a program set to automatically start the MM service. .. FIG. 50 is an example of a program set to automatically start the MM service, and FIG. 51 is an example of a program set not to automatically start the MM service.

The following [Operation example 25-1] to [Operation example 25-5], the following [Operation example 25-6] to [Operation example 25-10], and the following [Operation example 25-11] to [Operation example 25-] 13] and the following [Operation Example 25-16] to [Operation Example 25-20] may be operated / controlled by selecting only one of them.

-Operation example 25-1
When the broadcast program being received is a program set to automatically start the MM service, in the area 0 in the state where the LCT control is applied to the screen of the broadcast program "before pressing the MM key". The MM service is automatically started and displayed, and then the screen display of the MM service is continued. If the "MM key is pressed (first time)" is performed in this state, the MM service in the area 0 may be terminated and the screen display of the broadcast program may be returned while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 25-2 to 4
When the broadcast program being received is a program set to automatically start the MM service, in the area 0 in the state where the LCT control is applied to the screen of the broadcast program "before pressing the MM key". The MM service is automatically started and displayed, and then the screen display of the MM service is continued. If "pressing the MM key (first time)" is performed in this state, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 25-2) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 25-3) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 25-4) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 25-5
When the broadcast program being received is a program set to automatically start the MM service, in the area 0 in the state where the LCT control is applied to the screen of the broadcast program "before pressing the MM key". The MM service is automatically started and displayed, and then the screen display of the MM service is continued. If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid (for example, "this key cannot be used at present") may be displayed. .. In this case, the screen display of the MM service in the area 0 is continued until the broadcast receiving device 100 receives a command instructing the end of the MM service from the broadcast wave or the user changes the channel selection, that is, the broadcasting station side It is possible to control the start / end of the MM service.

-Operation example 25-6 to 7
If the broadcast program being received is a program set to automatically start the MM service, and further, if the program is set to end the screen display of the automatically started MM service after a predetermined time, the "MM key" is used. "Before pressing", the MM service is automatically started and displayed once in the area 0 in which the LCT control is applied to the screen of the broadcast program, and the screen of the MM service is hidden after a predetermined time to display the above. Return to the broadcast program screen. If the "MM key is pressed (first time)" is performed in this state, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service in the area 0 may be terminated again to return to the screen display of the broadcast program while maintaining the LCT control. (Operation example 25-6) Alternatively, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. (Operation Example 25-7) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 25-8 to 10
If the broadcast program being received is a program set to automatically start the MM service, and further, if the program is set to end the screen display of the automatically started MM service after a predetermined time, the "MM key" is used. "Before pressing", the MM service is automatically started and displayed once in the area 0 in which the LCT control is applied to the screen of the broadcast program, and the screen of the MM service is hidden after a predetermined time to display the above. Return to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 25-8) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 25-9) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 25-10) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 25-11
When the broadcast program being received is a program set to automatically start the MM service, all the LCT controls applied to the screen of the broadcast program are terminated before "before pressing the MM key". The screen display is started, and the MM service is started and displayed. If the "MM key is pressed (first time)" is performed in this state, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the full screen display may be continued. Further, when the "MM key is pressed (second time)" is performed, the MM service may be restarted while the full screen display is continued. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 25-12 to 13
When the broadcast program being received is a program set to automatically start the MM service, all the LCT controls applied to the screen of the broadcast program are terminated before "before pressing the MM key". The screen display is started, and the MM service is started and displayed. If "pressing the MM key (first time)" is performed in this state, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the LCT control may be performed again. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again in the area 0 while maintaining the LCT control. (Operation Example 25-12) Alternatively, the LCT control applied to the screen of the broadcast program may be terminated to shift to full-screen display, and the MM service may be restarted for display. .. (Operation Example 25-13) With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 25-14
If the broadcast program being received is a program set to automatically start the MM service, and further, if the program is set to end the screen display of the automatically started MM service after a predetermined time, the "MM key" is used. "Before pressing", the LCT control applied to the screen of the broadcast program is terminated, the screen shifts to the full screen display, the MM service is started and displayed once, and the MM service screen is displayed after a predetermined time. It is hidden and the screen returns to the broadcast program screen. At this time, the LCT control is still finished. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted while the full screen display is continued. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated again while the full screen display is continued. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 25-15
If the broadcast program being received is a program set to automatically start the MM service, and further, if the program is set to end the screen display of the automatically started MM service after a predetermined time, the "MM key" is used. "Before pressing", the LCT control applied to the screen of the broadcast program is terminated, the screen shifts to the full screen display, the MM service is started and displayed once, and the MM service screen is displayed after a predetermined time. It is hidden and the screen returns to the broadcast program screen. At this time, the LCT control is executed again. If "pressing the MM key (first time)" is performed in this state, the MM service may be restarted after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the screen display of the MM service may be terminated, the display may return to the broadcast program screen display, and the LCT control may be performed again. With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 25-16 to 17
When the broadcast program being received is a program set so that the MM service is not automatically started, LCT control is applied to the screen of the broadcast program "before pressing the MM key", but the MM service Is not automatically started, and the screen display of the broadcast program is continued even in the area 0. If the "MM key is pressed (first time)" is performed in this state, the MM service may be started and displayed in the area 0 while maintaining the LCT control. Further, when the "MM key is pressed (second time)" is performed, the MM service in the area 0 may be terminated and the screen display of the broadcast program may be returned while maintaining the LCT control. (Operation example 25-16) Alternatively, the LCT control may be terminated while the screen display of the MM service is continued. That is, the screen display of the MM service may shift from the display of only the area 0 under the LCT control to the full screen display. (Operation Example 25-17) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

-Operation example 25-18 to 20
When the broadcast program being received is a program set so that the MM service is not automatically started, LCT control is applied to the screen of the broadcast program "before pressing the MM key", but the MM service Is not automatically started, and the screen display of the broadcast program is continued even in the area 0. If "pressing the MM key (first time)" is performed in this state, the MM service may be started after the LCT control is terminated and the display shifts to the full screen display. Further, when the "MM key is pressed (second time)" is performed, the LCT control may be performed again while the screen display of the MM service is continued. In this case, the MM service may shift from the full screen display to the display in the area 0. (Operation example 25-18) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the LCT control may be performed again. (Operation example 25-19) Alternatively, the screen display of the MM service may be terminated to return to the display of the broadcast program screen, and the full screen display may be continued. (Operation Example 25-20) With such an operation, it is possible to easily switch the start / end of the MM service while switching the enable / disable of the LCT control according to the instruction of the user.

[Operation example 26]
Broadcasting when the MM key 100R9 is pressed when the broadcast receiving device 100 is capable of communicating with each server device on the Internet 200 and is receiving a broadcast program that supports the MM service and does not support the LCT control. The operation of the receiving device 100 is shown in FIGS. 52 to 53. Further, the broadcast receiving device 100 of the present embodiment may operate differently even under the above conditions depending on whether or not the broadcast program being received is a program set to automatically start the MM service. .. FIG. 52 is an example of a program set to automatically start the MM service, and FIG. 53 is an example of a program set not to automatically start the MM service.

-Operation example 26-1
If the broadcast program being received is a program set to automatically start the MM service, the MM service is automatically started and displayed in full screen before "before pressing the MM key", and then the screen of the MM service is displayed. To continue. If the "MM key is pressed (first time)" is performed in this state, the MM service may be terminated and the screen display of the broadcast program may be restored. Further, when the "MM key is pressed (second time)" is performed, the MM service may be started and displayed again with the full screen display. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 26-2
If the broadcast program being received is a program set to automatically start the MM service, and further, if the program is set to end the screen display of the automatically started MM service after a predetermined time, the "MM key" is used. Before pressing, the MM service is automatically started to display the full screen once, and after a predetermined time, the screen of the MM service is hidden and the screen returns to the broadcast program screen. If "pressing the MM key (first time)" is performed in this state, the MM service may be started and displayed again with the full screen display. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated again and the screen display of the broadcast program may be restored. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

-Operation example 26-3
If the broadcast program being received is a program set so that the MM service is not automatically started, the MM service is not automatically started and the screen display of the broadcast program continues before "before pressing the MM key". Will be done. If "pressing the MM key (first time)" is performed in this state, the MM service may be started and displayed while the full screen is displayed. Further, when the "MM key is pressed (second time)" is performed, the MM service may be terminated and the screen display of the broadcast program may be restored. With such an operation, it is possible to easily switch the start / end of the MM service according to the instruction of the user.

[Operation example 27]
When the MM key 100R9 is pressed when the broadcast receiving device 100 is capable of communicating with each server device on the Internet 200 and is receiving a broadcast program that does not support the MM service and supports the LCT control. The operation of the broadcast receiving device 100 is shown in FIG. 54.

-Operation example 27-1
When the broadcast program being received is a program that does not correspond to the MM service, the screen display in a state where the LCT control is applied to the screen of the broadcast program is continued before "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that pressing the MM key is invalid while the broadcast program screen is displayed while LCT control is applied (for example,). "Currently this key cannot be used" etc.) may be displayed. In this case, it is possible to notify the user that the program does not correspond to the MM service.

[Operation example 28]
Operation of the broadcast receiving device 100 when the MM key 100R9 is pressed when the broadcast receiving device 100 is receiving a broadcast program that does not correspond to the MM service and the LCT control in a state where the broadcast receiving device 100 can communicate with each server device on the Internet 200. Is shown in FIG. 55.

-Operation example 28-1
If the broadcast program being received is a program that does not correspond to the MM service, the full-screen display of the broadcast program is continued before "before pressing the MM key". If "pressing the MM key (first time)" is performed in this state, a message indicating that the pressing of the MM key is invalid while the broadcast program screen is displayed in full screen (for example, "Currently this key is used". "Cannot be done" etc.) may be displayed. In this case, it is possible to notify the user that the program does not correspond to the MM service.

As described above, according to the broadcast receiving device 100 of the present embodiment, when the broadcasting receiving device 100 receives the 2K broadcast by the MPEG2-TS method with only one multimedia key 100R9 on the remote control 100R. Even if there is, or even when receiving 4K / 8K broadcast by the MMT method, regardless of whether or not the broadcast receiving device 100 can communicate with each server device on the Internet 200, etc. It is possible to preferably control the switching between the program screen of the broadcast program and the display screen of the multimedia service, the hybridcast service, or the data broadcasting service. Therefore, various processes can be suitably realized without unnecessarily increasing the number of keys on the remote controller 100R.

Further, in the above description of this embodiment, an example has been described in which the broadcast receiving device 100 has both a function of receiving a 2K broadcast by the MPEG2-TS method and a function of receiving a 4K / 8K broadcast by the MMT method. As a modification of this embodiment, the broadcast receiving device 100 is configured to have a function of receiving a 4K / 8K broadcast by the MMT method, and the broadcast receiving device 100 is configured not to have a function of receiving a 2K broadcast by the MPEG2-TS method. You may. In that case, the above-mentioned operation examples 21 to 28 are performed under the control of the main control unit of the broadcast receiving device 100. Also in this case, both the MM service and the LCT control can be appropriately controlled only by the multimedia key 100R9 on the remote controller 100R.

Although examples of the embodiment of the present invention have been described above with reference to Examples 1 to 3, the configuration for realizing the technique of the present invention is not limited to the above-described embodiment, and various modified examples can be considered. For example, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. All of these belong to the category of the present invention. In addition, numerical values and messages appearing in sentences and figures are merely examples, and the effects of the present invention may not be impaired even if different ones are used.

The above-mentioned functions of the present invention and the like may be realized by hardware, for example, by designing a part or all of them by an integrated circuit. Further, it may be realized by software by interpreting and executing an operation program in which the microprocessor unit or the like realizes each function or the like. Hardware and software may be used together.

The software that controls the broadcast receiving device 100 may be stored in the ROM 103 and / or the storage (storage) unit 110 or the like of the broadcast receiving device 100 in advance at the time of product shipment. After the product is shipped, it may be acquired from another application server 500 or the like on the Internet 200 via the LAN communication unit 121. Further, the software stored in a memory card, an optical disk, or the like may be acquired via the expansion interface unit 124 or the like.

In addition, the control lines and information lines shown in the figure indicate those considered necessary for explanation, and do not necessarily indicate all the control lines and information lines on the product. In practice, it can be considered that almost all configurations are interconnected.

100,800 ... Broadcast receiver, 100a ... Antenna, 101,801 ... Main control unit, 102,802 ... System bus, 103,803 ... ROM, 104,804 ... RAM, 110,810 ... Storage unit, 121,821 ... LAN communication unit, 124,824 ... expansion interface unit, 125,825 ... digital interface unit, 131,831,832 ... tuner / demodulation unit, 132 ... separation unit, 141 ... video decoder, 142 ... video color range conversion unit, 143 ... Voice decoder, 144 ... Character super decoder, 145 ... Subtitle decoder, 146 ... Subtitle synthesis unit, 147 ... Subtitle color range conversion unit, 151 ... Data decoder, 152 ... Cache unit, 153 ... Application control unit, 154 ... Browser unit, 155 ... Application color range conversion unit, 156 ... Sound source unit, 161,861 ... Video synthesis unit, 162,862 ... Monitor unit, 163,863 ... Video output unit, 164,864 ... Audio synthesis unit, 165,865 ... Speaker unit , 166, 866 ... Audio output unit, 170, 870 ... Operation input unit, 841 ... MMT decoding processing unit, 842 ... MPEG2-TS decoding processing unit, 200 ... Internet, 200r ... Router device, 200a ... Access point, 300t ... Radio waves Tower, 300s ... Broadcast satellite (or communication satellite), 300 ... Broadcast station server, 400 ... Service provider server, 500 ... Other application server, 600 ... Mobile telephone communication server, 600b ... Base station, 700 ... Mobile information terminal ..

Claims (1)

A broadcast reception system including a broadcast receiver capable of receiving both MPEG2 transmission system broadcast data and MMT transmission system broadcast data, and a remote controller capable of transmitting control information to the broadcast receiver and operating the broadcast receiver. hand,
The broadcast receiving device is
A first receiving unit that receives broadcast data of the MPEG2 transmission method, and
A second receiving unit that receives the broadcast data of the MMT transmission method, and
A network communication unit capable of network communication and
A first decoding unit that decodes the broadcast data received by the first receiving unit and the data received by the network communication unit, and
A second decoding unit that decodes the broadcast data received by the second receiving unit and the data received by the network communication unit, and
A video output unit that outputs a video generated based on the data decoded by the first decoding unit or the second decoding unit, and a video output unit.
An operation input unit that receives control information from the remote controller, and
A control unit that controls the first receiving unit, the first decoding unit, the second receiving unit, the second decoding unit, and the video output unit based on the control information received by the operation input unit. When,
With
The network communication unit
The hybrid cast data linked with the broadcast data of the MPEG2 transmission method received by the first receiving unit can be received from the external network.
The second decoding unit is
It is possible to acquire the data of the multimedia service linked with the broadcast data of the MMT transmission method via either the second receiving unit or the network communication unit.
The control state by the control unit includes
In the output video output from the video output unit, a first control state for controlling whether to display or hide the display screen for the hybrid cast data decoded by the first decoding unit, and
In the output video output from the video output unit, a second control state for controlling whether to display or hide the display screen of the data broadcasting service of the MPEG2 transmission method decoded by the first decoding unit. When,
A third control state for controlling whether to display or hide the display screen of the multimedia service of the MMT transmission method decoded by the second decoding unit in the output video output from the video output unit. When,
There is
The remote controller
A button for outputting control information for setting the control unit to the first control state, and
A button for outputting control information for putting the control unit into the second control state, and
The button for outputting the control information for setting the control unit to the third control state is
It is configured as the same button and
Further, when the same button is pressed while the video output unit is outputting the video of the broadcast program transmitted by the MPEG2 transmission method, the control unit is in the first control state or the second. When the same button is pressed while the video output unit is outputting the video of the broadcast program transmitted by the MMT transmission method, the third control state is set.
Broadcast reception system.

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