KR101666895B1 - Digital broadcast receiver and method for managing a content - Google Patents

Abstract

A digital broadcast receiver and a content management method are disclosed. When the contents request command for requesting the reproduction of the contents is received, the first controller checks the attribute information of the requested contents and controls to display a screen for requesting input of the contents password according to the result of checking. When the contents password is inputted, And transmits an execution request for the content according to the authentication result. The second control unit controls the content to be received from the server and controls the received content to be displayed when an execution request for the content is received from the first control unit.

Description

Technical Field [0001] The present invention relates to a digital broadcast receiver and a content management method,

The present invention relates to a digital broadcast receiver and a content management method, and more particularly, to a method for managing content in a digital broadcast receiver.

A broadcasting receiver transmits content produced by a broadcasting company through a radio wave transmission medium such as a terrestrial wave, a cable or a satellite broadcasting, and a user views the broadcasting through a receiver capable of receiving the transmission medium.

However, digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, so that it is possible to use real-time broadcasting, contents on demand (CoD), games, news It is possible to provide various types of content services to users.

An example of content service provision using the Internet network is IPTV (Internet Protocol TV). The IPTV refers to transmitting various information services, moving picture contents, broadcasting, etc. to an user's receiver using an Internet network. The Internet network can be implemented on various types of networks such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on IP (Internet Protocol).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, bidirectionality can be added and the user can watch the content service he wants to watch at a convenient time.

When a variety of broadcasting services are provided, it is possible to provide information on the broadcasting service to the user of the broadcasting receiver, to set or request the broadcasting service, to set the display setting, audio setting, And an OSD (On-Screen Display) device for notifying the user of the information.

According to an aspect of the present invention, there is provided a digital broadcast receiver and a content management method for flexibly managing broadcast contents and protecting privacy of a user.

According to another aspect of the present invention, there is provided a computer-readable recording medium storing a program for causing a computer to execute a content management method.

According to another aspect of the present invention, there is provided a digital broadcasting receiver for receiving a content request command for requesting reproduction of content, A first control unit for performing authentication based on the input content password when a content password is input and transmitting an execution request for the content according to the authentication result, And a second controller for controlling the content to be received from the server and controlling the displayed content to be displayed when an execution request for the content is received from the server. Where the content may be an add-on application. The attribute information may indicate either shared or non-shared.

Preferably, the first control unit may control the display unit to display a screen for requesting the input of the content encryption when the attribute information indicates the non-authentication.

Preferably, the first controller may set the attribute information according to the received attribute information setting command.

Preferably, the first control unit may perform user authentication based on the stored certificate.

Preferably, when the user authentication is successful, the first control unit may control the display unit to display a screen for selecting contents viewed by the authenticated user.

Preferably, when the user authentication is successful, the first control unit confirms whether the authenticated user is the owner of the content. If the user is the owner of the content, the first control unit transmits an execution request for the content to the second control unit .

According to another aspect of the present invention, there is provided a content management method for managing content in a digital broadcasting receiver including a user interface unit, a display unit, a first control unit, and a second control unit, Receiving a content request command for requesting playback of content by an interface, displaying the screen for requesting input of the content password according to a result of the confirmation, the first controller checking attribute information associated with the requested content, Wherein the control unit controls the display unit, the user interface unit receives the content password, the first control unit performs authentication based on the input content encryption, and the second control unit notifies the second control unit of the content Transmitting an execution request, and the second control unit Group received the execution request, from the server to receive the control content, and a step in which the display control unit to display the received content. Here, the content may be an add-on application. In addition, the attribute information may indicate either shared or non-shared.

Preferably, in the step of controlling the display unit to display a screen for requesting the input of the content password, when the attribute information indicates the non-authentication, the display unit is controlled to display a screen requesting input of the content password .

Preferably, the first control unit further performs user authentication based on the stored certificate.

Preferably, when the user authentication is successful, the first control unit controls the display unit to display a screen for selecting the content viewed by the authenticated user.

Preferably, the first control unit checks whether the authenticated user is the owner of the content, and if the content is the owner, the first control unit transmits an execution request for the content to the second control unit .

According to the digital broadcast receiver and the content management method of the present invention, content can be shared or not shared, thereby restricting the use of non-shared contents by other users and protecting the privacy of the user.

1 is a diagram schematically illustrating an IPTV system according to an embodiment of the present invention,
2 is a schematic view of a network TV system according to an embodiment of the present invention,
Figure 3 is a schematic representation of a multicast scheme,
Figure 4 is a schematic representation of a unicast scheme,
FIG. 5 is a diagram showing a hierarchical structure for a content download service (CDS)
6 is a block diagram illustrating a configuration of a digital broadcast receiver according to an embodiment of the present invention.
7 is a block diagram illustrating a configuration of a digital broadcast receiver according to another embodiment of the present invention.
Figure 8 illustrates a hierarchy of application add-on functions that provide downloading, execution, and expansion of various types of content in accordance with one embodiment of the present invention;
9 is a diagram illustrating a configuration for implementing an application add-on function in a digital broadcast receiver according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating a layer structure of an add-on host interworking with an add-on system manager according to an embodiment of the present invention;
FIGS. 11A and 11B are views showing an embodiment of a screen showing a certificate search process,
12 is a view showing a screen on which a content list is displayed,
13 is a diagram showing a screen for requesting input of a content password,
14 is a diagram showing a screen for receiving an attribute information setting command,
FIG. 15 is a view showing a screen in which a content list reflecting changes of the content-related information is displayed;
FIG. 16 is a flowchart illustrating a content management method according to an exemplary embodiment of the present invention. Referring to FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The configuration and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical idea of the present invention and its core configuration and operation are not limited thereby.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, it is to be understood that the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and on the contents of the present invention throughout.

A digital broadcast receiver means a broadcast receiver capable of receiving digital broadcasts transmitted as digital video and audio signals. Digital broadcasting refers to a broadcasting technology capable of bi-directional operation, reproduction and accumulation because it compresses and outputs a television signal in a digital form in which information signals are encoded and recorded unlike conventional analog broadcasting. Compared to analog broadcasting, such digital broadcasting is strong against noise and has a small data loss, and since it transmits separate error correction information, it is advantageous for error correction and provides a high resolution and clear screen. Also, unlike analog broadcasting, digital broadcasting can receive a broadcasting service from a broadcasting station and provide bidirectional service to provide information to a broadcasting station.

In the present invention, digital broadcasting is used not only for broadcasting through terrestrial, satellite, and cable but also for broadcasting transmitted through an Internet network. That is, digital broadcasting is defined as a concept including IP (Internet Protocol) broadcasting.

Also, in the present invention, a digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer. Here, the Internet service includes information services such as CoD (Content's on Demand) service, YouTube service, weather, news, local information and search, entertainment services such as game and karaoke, TV mail, TV SMS And communication services, which can be provided through the Internet. Accordingly, the digital broadcast receiver in the present invention includes a network TV, a web TV, and a broadband TV. The broadcasting service may include an Internet service as well as a broadcasting service provided through terrestrial, satellite, and cable.

There may be various system architectures for transmitting digital broadcasts. For example, an Internet Protocol Television (IPTV) system is a system capable of providing various contents using an Internet network. The system can be composed of a server, a network, and a client.

The server of the IPTV includes various servers such as a service discovery and selection server, a streaming server, a contents guide information server, a customer information server, a payment information server, ≪ / RTI >

Among the servers, the streaming server transmits moving picture data encoded by MPEG (Moving Picture Experts Group) 2, MPEG4, etc. stored in the server to a user via a network. A Real-Time Transport Protocol (RTP), an RTP Control Protocol (RTCP), or the like may be used as the protocol for the transmission.

When real-time streaming protocol (RTSP) is used, video stream reproduction may be controlled to a certain extent through a function called network trick play such as pause, replay, and stop . The protocols are examples and other real-time transmission protocols may be used according to embodiments.

The content guide information server is a server for providing information on the various contents provided. The content guide information is information corresponding to EPG (Electronic Program Guide) information and includes various kinds of information about the content. The content guide information server stores content guide information data and provides the stored data to a receiver.

The information server for service discovery and selection among the servers provides access information, playback information, and the like to servers providing various contents services such as broadcasting, contents on demand (CoD), and games.

The network system consists of internet based network and gateways. The Internet-based network may be based on IP, such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH) network, a telephone network, and a wireless network. The gateway can perform not only general data transmission but also multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

An IPTV receiver is a receiver that receives data transmitted through the Internet and provides it to a user. The receiver includes an IPTV settop, a home net gateway, and an IPTV embedded TV.

In the case of a hybrid IPTV system, various contents of the Internet as well as various existing broadcast contents can be provided. In other words, it is possible to provide various broadcast contents such as terrestrial broadcast, cable broadcast, satellite broadcast, personal broadcast, etc., various Internet video contents, data contents other than video, and the like to users. The contents may be provided in real time or on demand depending on the request.

1 is a diagram schematically illustrating an IPTV system according to an embodiment of the present invention.

Referring to FIG. 1, the IPTV system may be divided into a content provider (CP), a service provider (SP), a network provider (NP), and a user have.

The content provider produces and provides various contents. 1, a terrestrial broadcaster, a cable SO (System Operator) or a MSO (Multiple System Operator), a satellite broadcaster, an Internet broadcasting transmitter (Internet broadcaster).

The service provider provides the contents provided by the contents provider in a service package. For example, the service provider of FIG. 1 packages a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, a satellite broadcast, various Internet broadcasts, and the like to a user.

The network provider provides a network for providing the service to the user. The user may establish a home network (HNED) to receive the service.

As a means for protecting the content transmitted in the IPTV system, a conditional access and a content protection may be used. As an example of the above-described conditional access and content protection, a scheme such as a cable card (CableCARD) and a DCAS (Downloadable Conditional Access System) can be used.

2 is a schematic diagram of a network TV system according to an embodiment of the present invention.

Referring to FIG. 2, a network TV is a digital broadcast receiver capable of receiving a digital broadcast, and also receiving Internet service and providing it to viewers. Network TV can be named broadband TV and includes web TV. Here, Web TV is a digital broadcasting receiver that receives and provides Internet services based on the Web.

The network TV can receive the Internet service directly from the content provider through the Internet. The network TV can request the retrieval of necessary information from the contents provider and receive the result and provide it to the user. In addition, the network TV can download the content and software requested by the user, play the downloaded content, or execute the downloaded software. It also receives a web page from a content provider and can display a web page received via a browser.

In addition, the network TV can receive a broadcasting service from a terrestrial broadcaster through a terrestrial wave as well as receive a broadcasting service via the Internet, and can receive a cable service provider (cable SO (System Operator) MSO (Multiple System Operator)), and may receive a broadcast service from a satellite broadcaster through a satellite.

A digital broadcast receiver can receive a broadcast service from a service provider or a content provider using a unicast or multicast method.

3 and 4 are diagrams schematically showing multicast and unicast methods, respectively.

Referring to FIGs. 3 and 4, the unicast method is a method of transmitting data between one sender and one receiver at a ratio of 1: 1. For example, in a case of a unicast method, when a receiver requests data from a server, the server transmits data to the receiver upon request. The multicast method is a method of transmitting data to a plurality of receivers of a specific group. For example, the server can transmit data to a plurality of pre-registered receivers at once. An Internet Group Management Protocol (IGMP) protocol may be used for the multicast registration.

FIG. 5 is a diagram illustrating a hierarchical structure for a content download service (CDS) broadcast of IPTV.

Referring to FIG. 5, a service provider transmits data contents for CDS to an IPTV receiver using a transmission protocol. The delivered data content for CDS is stored in the storage of IPTV. The stored CDS data contents can be executed by the user's request or the like. In this case, the transmission protocol may be FLUTE (File Delivery over Unidirectional Transport) on the ALC / LCT over IP / UDP and DVB-STP, DVB data / object carousel, FTP (File Transfer Protocol) hypertext transfer protocol), or the like, and the above-mentioned protocols may be used as an example, and other transmission protocols may be used.

If FLUTE is used as the transmission protocol, the presence or absence of the CDS service can be notified to the IPTV receiver through the service search and selection (SD & S), and the details about the contents can be recorded in the metadata of the TV Anytime format, Can be found through.

The CDS data contents may include various kinds of contents such as A / V contents, data contents, and game contents.

As described above, the digital broadcast receiver of the present invention including IPTV can receive various contents, and can output the provided contents to the display screen according to the user's selection.

6 is a block diagram illustrating a configuration of a digital broadcast receiver according to an embodiment of the present invention.

Referring to FIG. 6, the digital broadcasting receiver 600 according to an exemplary embodiment of the present invention may include a tuner for receiving terrestrial broadcasting, cable broadcasting, satellite broadcasting, and the like. However, in the present invention, for convenience of description, a description will be made mainly of a process of processing content transmitted using the Internet network.

The digital broadcast receiver 600 includes a network interface unit 602, an IP manager 604, a service delivery manager 606, a demultiplexer 608, a data decoder 610, a decoder 612, a display unit 616, Manager 618, a service information database 622, a service discovery manager 624, a service control manager 626, a metadata manager 628, a content database 630, and an add-on system manager 632 .

The network interface unit 602 receives packets received from the network and transmits the packets to the network. That is, the network interface unit 602 receives an IP packet for transmitting broadcast data from the service providing server through the network. Here, the broadcast data includes content, an update message indicating whether content is updated, metadata, service information data, and software code. In addition, the service information may include service information for a real-time broadcast service and service information for an Internet service.

The IP manager 604 is involved in delivering packets from a source to a destination with respect to packets received in the digital broadcast receiver 600 and packets transmitted from the digital broadcast receiver 600. [ The IP manager 604 classifies the received packets so as to correspond to the appropriate protocols and transmits the packets classified as the service delivery manager 606, the service discovery manager 624, the service control manager 626, and the metadata manager 628 . For example, when the IP manager 604 receives the packet including the metadata, the IP manager 604 may output the received metadata to the metadata manager 626. The IP manager 604 may also communicate to the service provider or content provider a message requesting the application output by the application downloader 636. [

The service delivery manager 606 is responsible for controlling the received service data. For example, when controlling real-time streaming data, RTP / RTCP (Real-Time Transport Protocol / RTP Control Protocol) may be used. When the real-time streaming data is transmitted using RTP, the service delivery manager 606 parses the received data packet according to the RTP and transmits the parsed data packet to the demultiplexer 608 or the control of the service manager 620 In the content database unit 630. [ The service delivery manager 606 controls the network reception information to be fed back to the server providing the service using the RTCP.

The demultiplexer 608 demultiplexes the received packets into audio, video, PSI (Program Specific Information) data, and transmits them to the decoder 612 and the data decoder 610, respectively.

The data decoder 610 decodes service information such as PSI (Program Specific Information). That is, the data decoder 610 receives and decodes the demultiplexed PSI section, the PSIP (Program and Service Information Protocol) section, the DVB-SI (Service Information) section, and the like in the demultiplexer 608.

The data decoder 610 decodes the received sections to create a database of service information, and stores the database of the service information in the service information database unit 622.

The decoder 612 decodes the video data and the audio data received from the demultiplexer 608. To this end, the decoder 612 includes an audio decoder 613 and a video decoder 604. The audio data decoded by the audio decoder 613 is supplied to the user through a speaker (not shown), and the decoded video data and contents are provided to the user through the display unit 616. [

The application manager 618 manages the overall state of the digital broadcast receiver 600, provides a user interface, and manages another manager. To this end, the application manager 618 includes a user interface manager 619 and a service manager 620.

The user interface manager 619 provides a GUI (Graphic User Interface) for the user using an OSD (On Screen Display) or the like, receives a key input from a user, and performs a receiver operation according to the input.

For example, the user interface manager 619 selects a content channel setting input for a predetermined content from a user. When the user interface manager 619 receives the key input regarding the channel change from the user, the user interface manager 619 transmits the key input signal to the service manager 620. Also, upon receiving a key input regarding a specific content channel or a request for update information for a specific content channel from the user, the key input signal is transmitted to the service manager 620.

The user interface manager 619 controls the virtual keyboard or the virtual keypad to be displayed on the screen. The user can select and input a specific virtual key on the virtual keyboard or virtual keypad output by using the direction key and numeric key of the remote controller. For example, the user interface manager 619 may receive a user ID and a password from a user and control the input user ID and password to be transmitted to the corresponding content provider.

The content database unit 630 allocates a content channel to the content, determines index data corresponding to the content, stores the index data in association with the allocated content channel information.

For example, if the content is a video or audio data 'growing video' stored in the internal memory of the digital broadcasting receiver 600, the content database unit 630 stores' D / video / In association with the allocated content channel 'ch 1'.

Also, for example, if the content is video or audio data stored in a network-connected server, the content database unit is assigned the network address '198.7 // Sejong the Great / de // 11 times' Can be stored in association with the content channel 'ch 3'.

For example, if the content is the 'Yahoo Widget' of the Internet site, the content database unit stores the web address 'http //: yahoo // wizet // ...' of the corresponding Internet site in the allocated content channel 'ch 2' Can be stored about.

On the other hand, according to the embodiment, when the broadcast receiver receives the change command of the content channel from the user, the broadcast receiver determines the index data corresponding to the changed content channel and outputs the corresponding content.

In this case, if the change command of the content channel is an increase or a decrease command of the channel, the controller reads the index data corresponding to the content of the next or previous content channel stored in the content database unit, Can be output.

The content database unit 630 may store authentication information for the Internet service list and the account of the server. Here, the Internet service list is a list including information on a content provider or a service provider that provides the Internet service. For example, the Internet service list may include at least one of the name of the server, the connection information of the server, the name of the service provided by the server, and guidance information therefor. Here, the connection information of the server may be any one of an Internet address and a URL (Uniform Resource Locator).

When the application manager 618 receives the output command of the content channel from the user, the application manager 618 reads the index data stored in the content database unit and outputs the content.

When the application manager 618 receives the change command of the content channel from the user, the application manager 618 reads the index data of the changed channel and outputs the content.

At this time, if the channel change command is a channel increase or decrease input, the digital broadcast receiver 600 reads the index data corresponding to the content of the next or previous order content channel stored in the content database unit, Print the contents of the sequence.

Meanwhile, when the user selects the content channel mode and selects the output command of the content channel, the application manager 618 can read the index data stored in the content database unit 630 and output the content.

The application manager 618 determines whether the channel selected by the user is a content channel or a general broadcast channel. If the channel is determined to be a content channel, the application manager 618 reads the index data stored in the content database unit 630 and outputs the content .

In addition, the application manager 618 may select the content channel mode, and when receiving the change command of the content channel, the application manager 618 may read the index data corresponding to the changed content channel and output the content command.

Here, the content may be video or audio data stored in the internal memory of the broadcast receiver, the index data may be a directory of the content, the content may be video or audio data stored in a server connected to the broadcast receiver, The data may be a network address of the content, the content may be a predetermined internet site, and the index data may be a web address of the internet site.

The application manager 618 may output a directory or a parent folder of the folder containing the content when a predetermined key input (e.g., a menu command) is selectively input from the output of the content.

In addition, the application manager 618 may output the update information or the change information when new content is updated in a directory or a folder containing the content, or when the content is changed in the directory or folder.

If the application manager 618 receives the content information request command, the application manager 618 may control the information about the content to be displayed. The application manager 618 may extract the information from the metadata stored in the service information database unit 622. [ The application manager 618 can also calculate the information from the name of the server included in the Internet service list, the connection information of the server, the name of the service provided by the server, and guidance information therefor.

If the application manager 618 receives a content request command for requesting reproduction of the content, the application manager 618 checks the attribute information of the content indicated by the content request command. If the attribute information of the content indicates the non-shared type, the application manager 618 can control the input of the password for the content. When the password is input, the application manager 618 performs authentication based on the input password. When the authentication is successful, the application manager 618 plays the content, or requests the add-on system manager 632 to play the content do. Where the content may be an add-on application.

The application manager 618 can receive the attribute information setting command from the user through the user interface manager 619. [ The application manager 618 can set the attribute information of the content according to the inputted attribute information setting command. Here, the attribute information of the content may indicate either shared or non-shared.

The application manager 618 may perform user authentication based on the stored certificate. If the user authentication is successful, the application manager 618 can control to display a screen for selecting the content viewed by the authenticated user. In addition, when the authenticated user is the owner of the content, the application manager 618 may execute the content without checking the attribute information of the content, or may transmit an execution request for the content to the add-on system manager 632. [ Here, the certificate may be stored in at least one of a content database unit 630, a service information database unit 622, and an external storage medium (not shown).

The display unit 616 displays the content and the OSD on the screen. Further, the display unit 616 displays the image generated by the browser on the screen. Here, the display unit 616 can display the screen according to the control of the application manager, and can display the screen under the control of the add-on system manager 632.

The service manager 620 controls the manager associated with the service, such as the service delivery manager 606, the service discovery manager 624, the service control manager 626 and the metadata manager 628 and the IG-OITF client.

The service manager 620 also creates a channel map of a general broadcast and selects a channel using the channel map according to a key input received from the user interface manager 619. [ The service manager 620 receives the channel service information from the data decoder 610 and sets an audio / video PID (Packet Identifier) of the selected channel in the demultiplexer 608.

The service manager 620 may also execute a browser to process the received service. The browser can display the service information on the screen, and can control the content to be reproduced. The browser may also execute an application, an application associated with the content. In addition, the browser can process the web page provided by the server and display it on the screen. Here, the service information can be provided in the form of a web page from the server.

The add-on host 628 is a configuration to be added to the IPTV to support the operation of the add-on system manager 632, and controls the reception and execution of the contents in the add-on system manager 632. The add-on host 628 may be an operating system that controls content reception and execution in the add-on system manager 632 separately from other functions of the IPTV, for example, outputting a broadcast signal.

The add-on host 628 may include a host agent and an open API host. The host agent receives the status information of the host software of the IPTV and the key input received from the user interface manager 619. The open API host executes the open API calls of the add-on application and receives the results.

In addition, the add-on host 628 transmits an execution command to the application downloader 626 according to the key input received from the user interface manager 619. [

The add-on system manager 632 performs overall management including installation, execution, management, and deletion of the add-on application. The add-on system manager 632 receives an execution request for the content from the add-on host 628, controls the content requested to be executed to be received from the content provider or the service provider, and controls the received content to be reproduced. The add-on system manager 632 includes an application browser 634 for executing an application, an application download 636 for installing an application, an application controller 633 for managing and controlling the application, an application installation / execution / And a security checker 635 for security at the time of deletion.

The application downloader 636 is executed in response to an execution request of the add-on host 628, transmits the content list update request to the content server, receives the content list from the content server, (622).

At this time, the application downloader 626 requests version information of the content list to the content server, receives the version information of the content list from the content server, compares the version information with the version information of the stored content list, If the updated version information does not match the stored version information, the update request of the content list may be transmitted to the content server.

The application downloader 626 transmits system information of the digital broadcast receiver or the add-on host to the content server, and the content list received from the content server may be a list of applications executable according to the control command of the add-on host.

According to the embodiment, the user interface manager 619 selects one or more downloads of the contents included in the displayed contents list from the user, and the application downloader 636 extracts the selected contents Can be downloaded.

The application downloader 636 may transmit the device ID information of the digital broadcasting receiver and the version information of the received content list to the content server when the download of the content list is completed.

At this time, the content list is compressed and received, and the application downloader 636 decompresses and stores the received content list.

At this time, the content list can be stored in XML format.

The application browser 634 outputs the stored content list to the display unit 616. [

Also, the user interface manager 619 selects one or more of the downloaded contents from the user, and the application browser 624 executes the selected contents according to the execution request of the add-on host 628. [

The service discovery manager 624 provides the information necessary to select a service provider providing the service. Upon receiving a signal regarding the channel selection from the service manager 620, the service discovery manager 624 searches for the service using the information.

The service control manager 626 is responsible for selection and control of services. For example, when a user selects a service such as IGMP or RTSP when selecting a Live Broadcasting service such as an existing broadcasting method and selects a service such as VOD (Video On Demand), RTSP is used to select a service, control . The RTSP protocol may provide a trick mode for real-time streaming. Also, the service control manager 926 can initialize and manage a session through the IMC gateway using an IP Multimedia Subsystem (IMS) and a Session Initiation Protocol (SIP). The protocols are one embodiment, and other protocols may be used, depending on the implementation.

The metadata manager 628 manages the metadata associated with the service and stores the metadata in the service information database 622. [

The service information database unit 622 stores the service information decoded by the data decoder 610, the meta data managed by the meta data manager 628, and information necessary for selecting a service provider provided by the service discovery manager 624 . The service information database unit 622 may store setup data and the like for the system.

The service information database unit 622 and the content database unit 630 may be implemented using a nonvolatile RAM (NVRAM) or a flash memory, respectively. The service information database unit 622 and the content database unit 630 may be logically divided into two areas Can be implemented.

The content database 630 may store content controlled to be stored in a PVR manager (not shown). The PVR manager collects metadata related to the stored content and generates additional information (thumbnail image, etc.) used for the user.

7 is a block diagram illustrating a configuration of a digital broadcast receiver according to another embodiment of the present invention.

7, a digital broadcasting receiver 700 according to another embodiment of the present invention includes a video / audio processing unit 701, an interface unit 750, a storage unit 760, a display unit 770, A first controller 775 and a first controller 780.

The video / audio processing unit 701 processes the input video signal or audio signal so that the video or audio can be output to the display unit 770 and the audio output unit 775 of the digital broadcast receiver 700. To this end, the video / audio processing unit 701 may include a signal input unit 710, a demodulation unit 720, and a signal processing unit 740. The signal input unit 710 may include a tuner unit 711, an A / V input unit 712, a USB input unit 713, a wireless signal input unit 714, and a network unit 715.

The tuner unit 711 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, and outputs the selected RF broadcast signal as an intermediate frequency signal, Conversion. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF), and if the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS SIF). That is, the tuner unit 711 can process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal (CVBS SIF) output from the tuner unit 711 can be directly input to the signal processor 740.

In addition, the tuner unit 711 can receive RF carrier signals of a single carrier according to an Advanced Television System Committee (ATSC) scheme or RF carriers of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

According to another embodiment of the present invention, the digital broadcast receiver 700 may include at least two tuner units. In a case where at least two tuner units are provided, the second tuner unit selects an RF broadcast signal corresponding to a channel selected by the user among the RF broadcast signals received through the antenna, similar to the first tuner unit, Frequency signal or a baseband image or voice signal.

In addition, the second tuner unit may sequentially select RF broadcast signals of all broadcast channels stored through the channel memory function among the received RF broadcast signals, and convert the RF broadcast signals into an intermediate frequency signal, a baseband image, or a voice signal. And the second tuner unit may periodically perform the conversion operation of all the broadcast channels. Accordingly, the digital broadcast receiver 700 can display images of the broadcast signals converted through the first tuner unit, and can provide images of the plurality of channels converted through the second tuner unit in a thumbnail form. In this case, the first tuner unit converts a main RF broadcast signal selected by the user into an intermediate frequency signal, a baseband image or a voice signal, and the second tuner sequentially / periodically selects all RF broadcast signals except for the main RF broadcast signal It can be converted into an intermediate frequency signal or a baseband image or a voice signal.

The demodulator 720 receives the digital IF signal DIF converted by the tuner 711 and performs a demodulation operation. For example, when the digital IF signal output from the tuner unit 711 is of the ATSC scheme, the demodulation unit 720 performs 8-VSB (8-Vestigal Side Band) demodulation. As another example, when the digital IF signal output from the tuner unit 711 is a DVB system, the demodulator 720 performs CODDMA (Coded Orthogonal Frequency Division Modulation) demodulation.

Also, the demodulator 720 may perform channel decoding. For this, the demodulator 720 includes a Trellis decoder, a de-interleaver, and a Reed Solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

The demodulation unit 720 may perform demodulation and channel decoding and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The stream signal output from the demodulation unit 720 may be input to the signal processing unit 740. The signal processing unit 740 performs demultiplexing, signal processing, and the like, and then outputs an image to the display unit 770 and outputs a voice to the voice output unit 775.

Further, in the case of a digital broadcasting receiver having at least two tuner units, a corresponding number of demodulators may be provided. The demodulator may be provided separately according to the ATSC scheme and the DVB scheme.

In addition, the signal input unit 710 can connect the external device and the digital broadcast receiver 700. The external device refers to various types of video or audio output devices such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camcorder, and a computer (notebook). The signal input unit 710 inputs a video, audio, or data signal of an external device to a signal processing unit 740 capable of processing a video signal and a voice signal of the digital broadcast receiver 700.

The A / V input unit 712 of the signal input unit 710 may include an Ethernet terminal, a USB terminal, a Composite Video Banking Sync (CVBS) (Digital Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid, HD terminals, and the like. The CVBS terminal, and the S-video terminal may be converted into a digital signal and input to the signal processing unit 740. The digital signal input through the other input terminal may be input to the signal processing unit 740 without performing the analog / digital conversion process.

The USB input unit 713 can input video and audio signals through the USB terminal.

The wireless signal input unit 714 can connect the digital broadcast receiver 700 to a wireless network. The digital broadcast receiver 700 may be connected to the wireless Internet through a wireless signal input unit 714. [ For wireless Internet access, WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) In addition, the wireless signal input unit 714 can perform short-range wireless communication with other electronic devices. For example, it can be connected to other electronic devices in accordance with Bluetooth, RFID (Radio Frequency Identification), IrDA (Infrared Data Association), UWB (Ultra Wideband) and ZigBee communication standards.

In addition to the radio signal input unit 714, an Ethernet terminal or a signal input unit 710 may further include a network unit 715 for efficient network connection and management, The receiver 700 can be connected to the network through the PSTN, LAN, CABLE, and the like.

Meanwhile, the signal input unit 710 may be connected to various set-top boxes via at least one of the various terminals described above to perform input / output operations with the set-top box. For example, when the set-top box is a set-top box for an IP (Internet Protocol) TV, the video, audio and data signals processed in the settop box for IPTV can be transmitted to the controller 760, The control unit 760 may transmit the processed signals to the IPTV set-top box.

Therefore, the digital broadcasting receiver according to the present invention can process signals transmitted through a wired or wireless network in addition to broadcast signals through a radio wave medium, signals from external input devices, and the like. That is, the digital broadcast receiver according to the present invention receives broadcast data provided by a service providing server through a network. Here, the broadcast data includes content, an update message indicating whether content is updated, metadata, service information data, and software code. In addition, the service information may include service information for a real-time broadcast service and service information for an Internet service.

The signal processing unit 740 demultiplexes the received stream signal, for example, an MPEG-2 TS, into a video signal, a voice signal, and a data signal, respectively. Also, the signal processing unit 740 can perform image processing of the demultiplexed video signal. For example, if the demultiplexed video signal is a coded video signal, it can be decoded. Specifically, when the demultiplexed video signal is an MPEG-2 standard-coded video signal, it can be decoded by an MPEG-2 decoder. Also, if the demultiplexed video signal is a video signal of the H.264 standard according to the DMB (Digital Multimedia Broadcasting) scheme or DVB-H, it can be decoded by the H.264 decoder.

The signal processor 740 may process the brightness, tint, and color of the video signal. The video signal processed by the signal processing unit 740 is displayed through the display unit 770. Also, the signal processor 740 can perform the voice processing of the demultiplexed voice signal. For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an MPEG-2 standard encoded speech signal, it can be decoded by an MPEG-2 decoder. In addition, if the demultiplexed speech signal is a coded voice signal of the MPEG 4 BSAC (Bit Sliced Arithmetic Coding) standard according to a terrestrial DMB (Digital Multimedia Broadcasting) scheme, it can be decoded by an MPEG 4 decoder. Also, if the demultiplexed speech signal is an encoded audio signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H, it can be decoded by the AAC decoder.

The signal processor 740 may process a base, a treble, a volume control, and the like.

The voice signal processed by the signal processing unit 740 is output to the voice output unit 775 by voice. In addition, the signal processor 740 can perform data processing of the demultiplexed data signal. For example, if the demultiplexed data signal is a coded data signal, it can be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel. For example, the EPG information may be ATSC-PSIP (ATSC-Program and System Information Protocol) information in the case of the ATSC scheme and DVB-Service Information (DVB-SI) information in case of the DVB scheme . The ATSC-PSIP information or DVB-SI information may be information included in the above-described stream, i.e., the header (4 bytes) of the MPEG-2 TS.

In addition, the signal processor 740 may perform an OSD (On Screen Display) process. Specifically, the signal processing unit 740 performs a signal processing on the basis of at least one of the image-processed video signal and the data-processed data signal, and the user input signal input through the remote control device 200, Various kinds of information can be displayed in graphic or text.

The storage unit 760 may store a program for each signal processing and control in the first control unit 780 or may store a video signal, a voice signal, or a data signal subjected to signal processing. In addition, the storage unit 760 may perform a function for temporarily storing video, audio, or data signals input to the signal input unit 710. [

The storage unit 760 may store the Internet service list and may store the authentication information for the account of the server.

The storage unit 760 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) RAM, ROM (EEPROM, etc.), and the like. The digital broadcast receiver 700 can reproduce files (moving picture files, still picture files, music files, document files, etc.) stored in the storage unit 760 and provide them to users.

The first controller 780 controls the overall operation of the digital broadcast receiver 700. The first controller 780 can receive the signal transmitted from the remote controller 200 through the interface unit 750. The first controller 780 determines a command input by the user to the remote controller 200 through the received signal and controls the digital broadcast receiver 700 to correspond to the command. For example, when the user inputs a predetermined channel selection command, the first controller 780 controls the tuner unit 711 to input the selected channel through the signal input unit 710. In addition, the signal processor 740 controls the video signal and the audio signal of the selected channel to be processed. In addition, the control unit 740 controls the signal processing unit 740 so that the channel information selected by the user can be outputted through the display unit 770 or the audio output unit 775 together with the processed video signal and audio signal.

As another example, the user can input another kind of video or audio output command through the remote control device 200. [ That is, the user may desire to watch the camera or camcorder image signal inputted through the USB input unit 713 instead of the broadcast signal. In this case, the first control unit 780 processes the video signal or the audio signal input through the USB input unit 713 of the signal input unit 710 through the signal processing unit 740 and outputs the processed signal to the display unit 770 or the audio output unit 775 The video / audio processing unit 701 can be controlled so as to be output through the video / audio processing unit 701.

The first control unit 780 determines a user command inputted to the user input unit 755 formed in the digital broadcast receiver 700 in addition to the command inputted through the remote control device 200 and controls the digital broadcast receiver 700 Can be controlled. For example, the user can input an on / off command, a channel change command, a volume change command, and the like of the digital broadcast receiver 700 through the user input unit 755. The user input unit 755 may be a button or a key formed in the digital broadcast receiver 700. The first control unit 780 can determine whether the user input unit 755 is operated and control the digital broadcast receiver 700 accordingly. Here, the first controller 780 may perform the functions of the application manager 618 of FIG.

The first control unit 780 may also execute a browser to process the received service. The browser can display the service information on the screen, and can control the content to be reproduced. The browser may also execute an application, an application associated with the content. In addition, the browser can process the web page provided by the server and display it on the screen. Here, the service information can be provided in the form of a web page from the server.

The second control unit 790 performs overall management such as installation, execution, management and deletion of the add-on application. The second control unit 790 receives an execution request for the content from the first control unit 780, controls the content requested to be executed to be received from the content provider or the service provider, and controls the received content to be displayed. Here, the second control unit 790 can perform the function of the add-on system manager 632 of FIG.

FIG. 8 is a diagram illustrating a hierarchical structure of an application add-on function for downloading, executing, and extending various types of contents according to an embodiment of the present invention.

Referring to FIG. 8, a digital broadcasting receiver according to an embodiment of the present invention downloads content in a process separate from execution of host software (for example, software, application, etc., executed in the existing DTV) Run and expand.

At this time, the content that is add-on independent of the execution of the host software 820 may be the broadband service content 812, the IPTV content 814, the Netflix content 816, The host software and the additional application can be supported through the same middleware 830 and device driver 840.

When the add-on function is implemented, content (for example, an add-on application) added in a separate process from the host software 820 is driven, a plurality of contents can be simultaneously executed, 820), it is easy to add and execute the application to the IPTV.

9 is a diagram illustrating a configuration for implementing an application add-on function in a digital broadcast receiver according to an embodiment of the present invention.

Referring to FIG. 9, the digital broadcast receiver includes an add-on system manager 910 and an add-on host 920 for implementing an add-on function. The add-on system manager 910 performs overall management such as installation, execution, management, and deletion of the add-on application 930.

The add-on system manager 910 includes an application browser 911 for executing an application, an application download 918 for installing an application, an application controller 913 for managing and controlling the application, an application installation / execution / And a security checker 917 for security at the time of deletion.

The application browser 911 can output the downloaded content to the display unit. When the user interface manager 619 selects one or more of the downloaded contents to be executed, the application controller 913 sends an execution request to the add- And executes the selected content.

The add-on host 920 may include a host agent 922 and an open API host 926 in a configuration that must be added to the digital broadcast receiver to support the operation of the add-on system manager 910. For example, the add-on host 920 may be added to the host software of the digital broadcasting receiver, and may be an operating system for controlling the reception and execution of the content separately from the output of the broadcast signal.

The host agent 922 transmits and receives the status information of the host software of the digital broadcasting receiver and key events of the external input means (such as a remote controller).

The open API host 926 executes the open API call of the add-on application 930 and receives the result. The add-on application 930 sends an open API in response to a call to an open API host included in the host agent 922. At this time, the open API can be provided in the form of a shared library, and the add-on application 930 can register itself in the add-on manager 910 through the open API and use functions provided by the host software.

As described above, the add-on system manager 910 operates separately from other functions of the digital broadcast receiver, so that even if a plurality of contents execution is selected, all the selected contents can be executed.

On the other hand, the contents output on the display screen by the operation of the add-on host 920 and the add-on system manager 930 are outputted in the OSD form, and may have a form different from the conventional video signals.

10 is a diagram illustrating a hierarchical structure of an add-on host interworking with an add-on system manager according to an embodiment of the present invention.

10, the add-on host 1010 includes a user interface 1020, a middleware 1030, a device interface 1040, and hardware 1050. The add-on host 1010 may be a digital broadcast receiver, and the user interface 1020, the middleware 1030, and the device interface 1040 may be software executing on the first control unit 780.

The user interface 1020 provides a GUI (Graphic User Interface) for a user using an OSD (On Screen Display) or the like, and receives a key input from a user to perform a host operation according to the input.

Also, the user interface 1020 can transmit an execution command to the add-on system manager 1060 according to the input key. The user interface 1020 may also execute an open API call of the add-on application 1070 and receive the results.

The middleware 1030 includes a database management system module 1032, an electronic multimedia engine (EME) module 1034, a stream module 1036 and an HTTP (Hyper Text Transfer Protocol) client module 1038. The middleware 1030 receives metadata and content from a content provider or a service provider via the Internet, processes the received metadata according to an execution command of the user interface 1020, executes the content, and operates necessary hardware.

The database management system module 1032 processes and manages the metadata output from the EME module 1034. [ Here, the database management system module 1032 can modify the attribute information of the content by modifying the metadata of each content provider. That is, the database management system module 1032 can modify the attribute information of the content to indicate either shared or non-shared according to the attribute information setting command received from the user interface 1020. [

The stream module 1036 temporarily stores data received via the Internet, and outputs the data to the EME module 1034.

The HTTP client module 1038 controls the connection with the content provider or service provider and receives or transmits data from the content provider or service provider.

The device interface 1040 includes a storage module 1042 and an electronic media player (EMP) module 1046. The device interface 1040 supports the driver so that the middleware 1030 can use the hardware device, and operates the hardware device under the control of the middleware 1030. The storage module 1042 stores metadata and content on a storage medium and reads a certificate from the storage medium. The EMP module 1046 also provides drivers for the speakers and display device to play the content.

Hardware 1050 includes a hardware device of add-on host 1020. The hardware 1050 may be a storage medium, a speaker, a display device, and a network adapter. The storage medium may be a USB (Universal Serial Bus) memory, a network hard disk (HDD), or an internal storage medium.

11A to 11B are views showing an embodiment of a screen showing a certificate search process, respectively.

Referring to FIGS. 11A and 11B, the first control unit 780 searches for a user certificate from a storage medium. Here, the first control unit 780 can search for a certificate at boot time, the user can search for a certificate at the log-on request, and search for a certificate when a service module execution request is received.

The control unit 780 controls a message 1100 for selecting a storage medium to be displayed on the screen in order to search for a certificate. The storage medium may be a plurality of, for example, a USB memory 1110, an HDD 1 1120, and an HDD 2 1130. That is, the message 1100 includes a list 1110, 1120, and 1130 for selecting each storage medium. The user can move the indicator 1101 to select a storage medium to search for a certificate. If a specific storage medium is selected, the control unit 780 controls to display a message 1160 instructing to perform a certificate search.

12 is a view showing a screen on which a content list is displayed.

Referring to FIG. 12, when the service module request command is received, the first controller 780 controls the graphic user interface 1200 including the content list to be displayed on the screen. The graphical user interface 1200 includes a first area 1210 in which a type of content can be selected and a second area 1220 in which content can be selected.

The first area 1210 includes a full menu item 1212 for displaying the entire content in the second area 1220, a game menu item 1214 for displaying the content associated with the game in the second area 1220, And a training menu item 1218 for causing the second region 1220 to display the content related to the training in the second region 1220 and the like. Here, the user can move the indicator 1201 to select a corresponding menu item.

The second area 1220 displays a content list including content associated with the menu item selected in the first area 1210. Attribute information for each content is displayed together with the content list. '[C]' is displayed when the attribute information indicates sharing, and '[P]' is displayed when the attribute information indicates non-shared.

13 is a diagram showing a screen for requesting input of content encryption.

13, when a directive 1301 is located in the content 1301 in the graphic user interface 1300, a specific key signal (e.g., a selection button) is selected from the remote control device 800 or the user input unit 755, A request command for requesting playback of the content 1301 is input. When the request for requesting the reproduction of the content 1301 is inputted, the first controller 780 confirms the attribute information of the content 1301. Since the attribute information of the content 1301 is [P], the first controller 780 controls to display a message 1350 requesting content encryption for the content 1301.

When the contents password is input, the first controller 780 performs authentication based on the inputted contents password, and when the authentication is successful, the first controller 780 transmits an execution request for the contents 1301 to the second controller.

The second control unit 790 controls the network unit 715 to receive the content 1301 from the server upon receiving the execution request for the content 1301 from the first control unit 780. [ The second control unit 790 may control the display unit 770 to display the received content 1301. Here, the content 1301 may be an add-on application. Also, the second control unit 790 can receive the result generated by the content 1301 executed in the server and control the display to be displayed.

14 is a diagram showing a screen for receiving an attribute information setting command.

Referring to FIG. 14, the message 1350 may further include a check box 1456 for setting attribute information of the content 1301. When the check box 1456 is checked, the first control unit 780 receives the attribute information setting command. That is, the user can check the check box 1456 and input an attribute setting command.

FIG. 15 is a view showing a screen in which a content list reflecting changes in the information of the content is displayed.

Referring to FIG. 15, when the attribute information setting command is input, the first controller 780 modifies the attribute information of the content 1301 according to the attribute information setting command. The attribute information of the content 1501 in the graphic user interface 1500 is changed from '[P]' to '[C]' according to the attribute information setting command.

FIG. 16 is a flowchart illustrating a content management method according to an exemplary embodiment of the present invention. Referring to FIG.

Referring to FIG. 16, the first controller 780 executes the service module (S1600). Wherein the service module may be a flash engine for displaying flash content.

The first controller 790 checks whether a certificate exists in the storage medium (S1605). Here, the first control unit 790 may display the message 1100 and the message 1160 shown in FIG.

If the certificate exists, the first controller 780 requests the certificate password (S1610). Here, the first controller 780 may control the display of a message for receiving the certificate password. The interface unit 750 can receive the certificate password through the message and output the received certificate password to the first controller 780.

The first controller 780 performs user authentication based on the received certificate password (S1615).

If the user authentication is successful, the first control unit 780 displays a screen for selecting the content viewed by the authenticated user (S1620). Here, the first control unit 780 displays recently viewed contents on the screen.

The first control unit 780 determines whether a content request command for recently viewed content is input (S1625).

If the content request command is input, the first controller 780 determines whether the authenticated owner is the owner of the selected content (S1630).

The first control unit 780 transmits a content execution request to the second control unit 790 (S1635).

The second controller 790 controls the server to receive the content requested to be reproduced by the content execution request from the server (S1640).

The second control unit 790 controls the received content to be displayed (S1645).

If the authenticated owner is not the owner of the content, the first controller 780 checks whether the attribute information of the content instructs the non-shared (S1650).

If the attribute information of the content indicates non-covariance, the first control unit 780 requests input of content encryption (S1655). Here, the first control unit 780 can display the message 1350 of FIG.

The first control unit 780 receives the content encryption and performs authentication based on the received content encryption (S1660). If the content authentication is successful, the first control unit 780 performs step S1635.

If the content request command is not input, the first control unit 780 displays the content list (S1665). Here, the first controller 780 may control the graphic user interface 1200 shown in FIG. 12 to be displayed on the screen.

The first controller 780 determines whether a content request command requesting reproduction of specific content is input from the displayed content list (S1670). When the content request command is input, the first controller 780 performs step S1630.

If the user authentication is unsuccessful, the first control unit 780 displays the content list (S1675). Here, the first controller 780 may control the graphic user interface 1200 shown in FIG. 12 to be displayed on the screen.

The first controller 780 determines whether a content request command requesting playback of specific content is input from the displayed content list (S1680). If the content request command is input, the first controller 780 performs step S1650.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer apparatus is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (15)

A content request command for requesting reproduction of the content is received, the content information of the requested content is confirmed, a screen for requesting input of the content password is displayed according to the confirmation result, and when the content password is input, A first control unit for performing authentication based on the authentication result and transmitting an execution request for the content according to the authentication result; And
And a second control unit for receiving the content from the server and displaying the received content upon receiving an execution request for the content from the first control unit,
The content includes an add-on application,
The second control unit downloads the content in a separate process from the execution of the host software executed in the existing digital broadcasting, executes and expands the content,
The host software and the add-on application are supported through the same middleware and device driver
Digital broadcast receiver. delete The method according to claim 1,
Wherein the attribute information indicates either shared or non-shared. The method of claim 3,
Wherein the first control unit includes:
And controls the display unit to display a screen for requesting input of content encryption when the attribute information indicates non-reservation. The method according to claim 1,
Wherein the first control unit includes:
And sets the attribute information according to the received attribute information setting command. The method according to claim 1,
Wherein the first controller performs user authentication based on the stored certificate. The method according to claim 6,
Wherein the first control unit includes:
And controls to display a screen for selecting a content viewed by an authenticated user when the user authentication is successful. The method according to claim 6,
Wherein the first control unit includes:
If the user authentication is successful, confirm whether the authenticated user is the owner of the content, and if the user is the owner of the content, transmit the execution request for the content to the second control unit. A method of managing content in a digital broadcasting receiver including a user interface unit, a display unit, a first control unit, and a second control unit,
Receiving a content request command for requesting playback of the content by the user interface;
Displaying the screen for requesting input of a content encryption according to a result of the check by the first control unit through the display unit, after confirming the attribute information associated with the requested content;
Receiving the contents password by the user interface unit;
The first controller performing authentication based on the received content encryption and transmitting an execution request for the content to the second controller according to the authentication result; And
The second control unit receiving the execution request, receiving the content from the server, and displaying the received content through the display unit,
The content includes an add-on application,
The second control unit downloads the content in a separate process from the execution of the host software executed in the existing digital broadcasting, executes and expands the content,
The host software and the add-on application are supported through the same middleware and device driver
In content management. delete 10. The method of claim 9,
Wherein the attribute information indicates either shared or non-shared. 12. The method of claim 11,
Controlling the display unit to display a screen requesting input of the content password,
And controls the display unit to display a screen for requesting the input of the contents password when the attribute information indicates the non-common state. 10. The method of claim 9,
Further comprising: performing a user authentication based on a stored certificate of the first control unit. 14. The method of claim 13,
Further comprising controlling the display unit to display a screen for selecting a content viewed by an authenticated user when the user authentication is successful. 14. The method of claim 13,
Checking whether the authenticated user is the owner of the content; And
And if the content is the owner of the content, the first control unit transmits an execution request for the content to the second control unit.

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