JP2011244094A - Broadcast unit using file casting system, broadcast receiver using file casting system, broadcasting method using file casting system, broadcast reception method using file casting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that it is predicted that a communication traffic volume increases, and loads of a communication network and a server which distributes complementation data or the like increase in a broadcast complementation system.SOLUTION: This broadcast unit includes broadcasting means for broadcasting video data concerning a first broadcast program and a second broadcast program. In addition, the broadcast unit includes complementation data group transmission means for transmitting a first complementation data group in which a plurality of first complementation data packets for complementing the first broadcast program are continued and a second complementation data group in which a plurality of second complementation data packets for complementing the second broadcast program are continued on a communication path different from that of broadcast. In addition, the broadcast unit includes control signal output means for outputting signals for controlling broadcast complementation (complementation of the broadcast program) on the receiving side to be prohibited and allowed using the first complementation data group and the second complementation data group, and is constituted so as to control the broadcast complementation according to transmission frequencies of the first and second broadcast programs.

Description

  Embodiments described herein relate generally to a broadcast apparatus and a broadcast reception apparatus that use a file casting method.

In recent years, in addition to real-time broadcasting services, provision of information storage broadcasting services (broadcasting services based on file casting) is planned.
An information storage type broadcast service is a broadcast in which distributed content data and metadata are recorded in a storage medium managed by a broadcast receiving apparatus such as a television or a recorder, and the recorded content data is allowed to be reproduced later. It is a service.

  For example, in Japan, provision of an information storage type broadcasting service is scheduled mainly in a broadcasting form called multimedia broadcasting for mobile terminals (hereinafter referred to as multimedia broadcasting).

  In such an information storage type broadcasting service, if there is a defective part in the received or recorded content, it is expected that the reproduction of the content will be hindered.

For example, if the recorded content contains defective video information, the video is played with the stop of the moving image or the occurrence of block noise.
Therefore, a method (broadcast complementation method) has been proposed for acquiring supplementary data that complements defects in recorded information through a communication channel.
However, in the broadcast supplement system, supplementary data is acquired through a communication channel, so the communication amount increases, and it is expected that the load on the communication network and the server that distributes the supplemental data will increase.

JP 2007-166674

  As described above, in the broadcast supplement system, the amount of communication increases, and it is expected that the load on the communication network and the server that distributes supplement data will increase.

According to the embodiment, a broadcasting apparatus using the file casting method includes broadcasting means for broadcasting video data related to the first broadcasting program and the second broadcasting program.
In addition, the second complementary data group for complementing the first broadcast program and the second supplemental data packet for complementing the second broadcast program are connected in a second channel on a communication path different from the broadcast. Complementary data group transmission means is provided.

Also provided is a control signal output means for outputting a signal for prohibiting and enabling broadcast complementation (complementation of a broadcast program) on the receiving side using the first supplementary data group and the second supplementary data group. This prohibition and permission are configured to be controllable according to the number of transmissions of the first and second broadcast programs, respectively.

The block diagram which shows the broadcasting apparatus using the file-casting system concerning embodiment. The block diagram which shows the broadcast receiving apparatus using the file-casting system concerning embodiment. The figure explaining the broadcasting method using the file-casting system concerning embodiment. The figure explaining the broadcasting method using the file casting system concerning other embodiment. The figure explaining the broadcasting method using the file casting system concerning other embodiment.

<Example 1>
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a broadcasting apparatus using a file casting method according to the embodiment.
Reference numeral 11 denotes a broadcast transmission device (content transmission device). Here, an example of the content transmission device 11 on the broadcast station side in the multimedia broadcast service described in this embodiment is shown.

Reference numeral 12 is an input terminal, reference numeral 13 is an MPEG encoder, reference numeral 15 is a TS processing section, reference numeral 16 is an encryption processing section, reference numeral 17 is a TS multiplexing section, reference numeral 18 is an input terminal, reference numeral 19 is an encryption processing section, Reference numeral 20 denotes a content processing unit, reference numeral 21 denotes a TS conversion processing unit, reference numeral 22 denotes an EPG data generation unit, reference numeral 23 denotes a TS conversion processing unit, reference numeral 24 denotes a transmission path encoding unit, and reference numeral 25 denotes an output terminal.

Reference numeral 26 is an antenna, reference numeral 27 is an output terminal, reference numeral 28 is a network server (broadcast complement server), reference numeral 29 is an input terminal, reference numeral 30 is a content recording device (HDD), reference numeral 30a is a hard disk, reference numeral 31 is a network interface, reference numeral 32 is an input / output terminal, and 33 is a network.

The content transmission device 11 includes an input terminal 12 to which content (broadcast program) for a real-time broadcast service is input.
The content input to the input terminal 12 is subjected to compression processing by a moving picture experts group (MPEG) encoder 13 and subjected to PES processing / sectioning processing by a PES (packetized elementary stream) / sectioning processing unit 14. The

Then, TS processing is performed by the TS (transport tsream) processing unit 15, encryption processing is performed by the encryption processing unit 16, and then supplied to the TS multiplexing unit 17.

In addition, the content transmission device 11 includes an input terminal 18 to which content for storage-type broadcasting service is input.
This storable broadcasting service is a service for transmitting content to be automatically stored in a receiving device, which will be described later, by broadcasting, and viewing the content automatically stored by the receiving device at a predetermined timing.

As a result, an information storage type broadcast service (broadcast service based on a file casting method) can be realized.
The content input to the input terminal 18 is previously subjected to MPEG compression processing, and further subjected to PES processing / section processing.
The content is encrypted by the encryption processing unit 19, and the content processing unit 20 performs FLUTE processing, IP (internet protocol) packetization / header compression (ROHC) processing, encapsulation (ULE) processing, and the like.

Further, after the TS process is performed by the TS process unit 21, it is supplied to the TS multiplexer 17.
The content transmission device 11 includes an EPG (electronic program guide) data generation unit 22.
The EPG data generation unit 22 generates program arrangement information such as SI (service information) and PSI (program specific information) for creating an electronic program guide that is a delivery schedule table for content for a real-time broadcasting service. Yes.

Then, the program arrangement information generated by the EPG data generation unit 22 is subjected to TS conversion processing by the TS conversion processing unit 23 and then supplied to the TS multiplexing unit 17.
The TS multiplexer 17 multiplexes the TSs output from the TS processing units 21 and 23 and the encryption processing unit 16.
The TS multiplexed by the TS multiplexer 17 is subjected to encoding processing corresponding to the transmission path by the transmission path encoding section 24, and then supplied to the antenna 26 via the output terminal 25 and transmitted. .

  Further, the content for storage-type broadcast service that has been encrypted by the encryption processing unit 19 is supplied to the input terminal 29 of the network server 28 (broadcast complement server) via the output terminal 27.

The network server 28 supplies the content supplied to the input terminal 29 to an HDD (hard disk drive) 30 that is a recording device, and records the content on the hard disk 30a.

The HDD 30 is connected to a network 33 such as the Internet via a network interface 31 and an input / output terminal 32.
When the HDD 30 receives a content acquisition request from the network 33 via the input / output terminal 32 and the network interface 31, the HDD 30 reads all or part of the requested content from the hard disk 30a. 32 to the network 33.

This makes it possible to implement a service (broadcast supplement method) that acquires supplemental data through a communication channel.
The EPG data generation unit 22 also provides information related to a broadcast service distribution schedule by a file casting method, in addition to an electronic program guide for real-time broadcast service content.

FIG. 2 is a block diagram showing a broadcast receiving apparatus using the file casting method according to the embodiment.
Reference numeral 34 denotes a broadcast receiving device (content receiving device). Here, an example of the content receiving device 34 which is a receiving side in the multimedia broadcasting service is shown.
Reference numeral 35 is an antenna, reference numeral 36 is an input terminal, reference numeral 37 is a channel selection demodulator, reference numeral 38 is a TS separator, reference numeral 39 is a decoding processor, reference numeral 40 is a PES / section separator, reference numeral 41 is an MPEG decoder, Reference numeral 42 denotes a selective multiplexing unit.

Reference numeral 43 denotes a program guide creation unit.
Reference numeral 44 denotes a content decoding unit, reference numeral 45 denotes an HDD, reference numeral 45a denotes a hard disk, reference numeral 46 denotes a decoding processing unit, and reference numeral 47 denotes a decoder.
Reference numeral 48 denotes a video display unit, and reference numeral 49 denotes a speaker.
Reference numeral 50 denotes a control unit, reference numeral 50a denotes a CPU, reference numeral 50b denotes a memory unit, reference numeral 51 denotes an operation unit, reference numeral 52 denotes a communication control unit, reference numeral 53 denotes a network interface, and reference numeral 54 denotes an input / output terminal.

The digital broadcast signal received by the antenna 35 is supplied to the channel selection demodulation unit 37 via the input terminal 36.
This channel selection demodulator 37 selects a broadcast signal of a desired channel from the input broadcast signal, and demodulates the TS by performing demodulation processing on the selected broadcast signal.
The TS output from the channel selection / demodulation unit 37 is supplied to the TS separation unit 38, the TS corresponding to the content for real-time broadcasting service, the TS corresponding to the content for storage broadcasting service, and the EPG It is separated into TS corresponding to the program arrangement information generated by the data generation unit 22.

  Among these, the TS corresponding to the content for the real-time broadcasting service is subjected to encryption decryption processing by the decryption processing unit 39, and is converted into PES / section by video and audio by the PES / section separation unit 40. After being divided into contents, the MPEG decoder 41 performs decompression processing on each of the video and audio contents, and then supplies them to the selective multiplexing unit 42.

  Also, the TS corresponding to the program arrangement information separated by the TS separation unit 38 is supplied to the program guide creation unit 43 to create contents for OSD (on screen display) for displaying the electronic program guide. Provided.

Then, the OSD content corresponding to the electronic program guide created by the program guide creation unit 43 is supplied to the selection multiplexing unit 42.
Further, the TS corresponding to the content for the storage-type broadcast service separated by the TS separation unit 38 is encapsulated (ULE) decoding processing, IP packetization / header compression (ROHC) decoding processing by the content decoding unit 44, After the FLUTE decoding process or the like, the HDD 45 records (accumulates) the data on the hard disk 45a.

  The content read from the hard disk 45a by the HDD 45 is subjected to encryption decryption processing by the decryption processing unit 46 and decoded into video and audio content by the decoder 47, and then the selective multiplexing unit. 42.

  The selective multiplexing unit 42 selectively multiplexes the video content supplied from the MPEG decoder 41, the program guide creation unit 43, and the decoder 47, for example, for multi-screen display, and displays the video. The video is output to the unit 48 and displayed.

The selective multiplexing unit 42 selectively outputs the audio content supplied from the MPEG decoder 41 and the decoder 47 to the speaker 49 for audio reproduction.

Here, in the content receiving device 34, all operations including the above-described various receiving operations and recording / reproducing operations are controlled by the control unit 50.
The control unit 50 includes a central processing unit (CPU) 50a, receives operation information sent from the operation unit 51 by a user operation (not shown), and controls each unit so that the operation content is reflected. is doing.

In this case, the control unit 50 uses the memory unit 50b.
The memory unit 50b mainly includes a ROM (read only memory) storing a control program executed by the CPU 50a, a RAM (random access memory) for providing a work area to the CPU 50a, various setting information and control information. And so on.

Further, the control unit 50 can generate a request for obtaining desired complementary data to the HDD 30 of the network server 28 via the communication control unit 52.
That is, the communication control unit 52 generates a request for acquiring desired complementary data to the HDD 30 via the network interface 53, the input / output terminal 54, the network 33, the input / output terminal 32 of the network server 28, and the network interface 31. Yes.

  The communication control unit 52 acquires the content read by the HDD 30 from the hard disk 30a based on the content acquisition request via the network interface 31, the input / output terminal 32, the network 33, the input / output terminal 54, and the network interface 53. The data is recorded on the hard disk 45a by the HDD 45.

  Thus, the user can view not only a real-time broadcasting service for viewing various contents such as broadcast programs and data broadcasts in real time, but also a service for viewing various contents transmitted for storage and stored in the HDD 45 at an arbitrary timing. In addition to being able to enjoy a service for acquiring and viewing necessary content from the network server 28 at an arbitrary timing, the content data recorded on the hard disk 45a by the HDD 45 as content for the storage-type broadcasting service can be received. Can be acquired from the network server 28 as complementary data.

FIG. 4 is a diagram for explaining a broadcasting method using the file casting method according to the embodiment.
As described above, in the file casting method, data that could not be received by broadcasting is transmitted / received via a communication path such as the Internet, and supplementary data transmitted / received via the Internet is scheduled to be complemented by broadcasting.

Here, first, program data such as video data related to program 1 and program 2 is broadcast and received on the receiving side.
Also, complementary data related to programs 1 and 2 is transmitted from the broadcast side in response to a request from the reception side through a communication path different from that of the broadcast, and is received at the reception side.
As described with reference to FIG. 1, program 1 is transmitted in the form of TS packets after being subjected to FLUTE processing, IP (internet protocol) packetization / header compression (ROHC) processing, encapsulation (ULE) processing, and the like. In the program 1, the same data is repeatedly transmitted. That is, by repeatedly transmitting, even if the receiver fails to receive the first broadcast program data, the second and subsequent broadcast program data may be received. Here, program 1 is repeatedly transmitted in the form of four consecutive groups.

Similarly, the same data is repeatedly transmitted for program 2. Here, program 2 is repeatedly transmitted in the form of four consecutive groups.
In addition, a control signal for controlling prohibition and enablement of broadcast complementation of the program 1, the program 2, and the broadcast program on the receiving side is given and output. As the control signal here, for example, a flag for prohibiting and allowing broadcast complementation can be used.

In addition, the prohibition and permission of broadcast supplementation can be controlled according to the number of transmissions of each broadcast program (the number of repeated transmissions).
In FIG. 4, when the program 1 is transmitted from the broadcast program after 33 times (at the time), the receiver determines that there is a high possibility that the program has been accumulated by the broadcast, and can supplement the broadcast. When the number of times of transmission of the broadcast program is the first or second, it is determined that there is no high possibility that the program has been accumulated, and broadcast supplementation is prohibited.

The program 2 is prohibited from being supplemented up to 3 times of transmitting the broadcast program, and can be supplemented from 4 times or more (time) of transmitting the broadcast program.
Here, it is not necessary to make the number of retransmissions for which broadcast supplementation is prohibited and the number of retransmissions for which broadcast complementation is possible, independent for each program. For example, the number of retransmissions that prohibits broadcast complementation and the number of retransmissions that allow broadcast complementation do not match between program 1 and program 2.

It should be noted that the possibility of completion of data reception can be expected to increase after the same complementary data is retransmitted a certain number of times.
In the file casting system according to this embodiment, first, a broadcast program is repeatedly transmitted by broadcasting. In addition, as described above, it is possible to control whether or not broadcast supplementation is possible.
In addition, it is possible to switch whether or not broadcast supplementation is possible during the repeated transmission of broadcast programs. If the number of broadcast program transmissions is small, broadcast supplementation is rejected, and the number of broadcast program transmissions is greater than or equal to a predetermined number. In this case, it is possible to supplement broadcasting.

As a result, it can be determined that the probability of completion of data reception (accumulation completion of the broadcast program without loss) increases after a broadcast program is transmitted to some extent. For this reason, it is possible to determine whether or not broadcast supplementation is possible.

With this configuration, it can be expected to reduce the load on the network and the server. In other words, when the probability of completion of data reception (accumulation completion of the broadcast program without loss) is high, a receiver for which data reception is complete is received from a receiver that has completed data reception even if broadcast supplementation is permitted. Since it does not occur, it can be expected to reduce the load on the network and server. On the other hand, if the number of transmissions is small, it is determined that there is not a high possibility that program accumulation has been completed, and broadcast supplementation is rejected, so communication for broadcast supplementation does not occur, reducing the load on the network and server I can expect that.

Even in the broadcast supplement prohibition time period, a receiver that has been able to store information without a defect can view program content without any defect.
With regard to whether broadcast supplementation is possible or not, it is possible to distribute the broadcast signal to the receiver. For example, the following method can be considered.
<Broadcast complementation availability control example 1>
A flag is used as the availability control signal. Here, the broadcast program is transmitted with a flag.
For example, when broadcast complementation prohibition = 1 and broadcast complementation possible = 0, the receiver refers to this flag when performing broadcast complementation. When flag = 0, communication with the broadcast complementation server for broadcast complementation is performed. I do.

<Broadcast complementation availability control example 2>
Time is used as the availability control signal. Here, a broadcast supplement prohibition time limit is designated. The receiver can acquire time information. Then, when implementing the broadcast supplement, the broadcast supplement prohibition deadline is referred to, and when the current time has passed the broadcast supplement prohibition deadline, communication with the broadcast supplement server for broadcast complementation is performed.

<Broadcast complementation availability control example 3>
The number of retransmissions is used as the availability control signal. Here: Specify the number of retransmissions for which broadcast supplementation is prohibited. When the receiver performs broadcast supplementation, the receiver refers to the number of retransmissions for which broadcast supplementation is prohibited. If the number of retransmissions has exceeded the number of retransmissions for which broadcast supplementation is prohibited, the receiver communicates with a broadcast supplement server for broadcast supplementation. .

Further, the broadcast complementation propriety control signal may be distributed to the receiver as a broadcast signal together with the broadcast program (content) to be transmitted. Alternatively, it may be distributed to the receiver as a part of program guide information using SI / PSI as a broadcast signal. Alternatively, it may be distributed from the broadcast supplement server to the receiver using a broadcast signal or a network as a part of program guide information using metadata.

In addition, it is possible to prohibit broadcast supplementation not for all programs (contents) but for some programs (contents).
For example, it is possible to make it possible to supplement the broadcast from the first retransmission to the content with higher real-time properties, that is, the content that the viewer wants to see quickly. In addition, in operations that place importance on reducing the load on the network and server due to broadcast supplementation, the content that can be supplemented with broadcasts should be narrowed down (subject to broadcast supplement prohibition even after (the time of) the last retransmission). Is also possible.

In this embodiment, it is possible to control whether broadcast supplementation is possible on the broadcast side. For this reason, the broadcaster can operate the broadcast supplement with a high degree of freedom while considering the load on the network and the server.

<Example 2>
FIG. 5 is a diagram for explaining a broadcasting method using a file casting method according to another embodiment.
This embodiment relates to a broadcast supplement system as described above. From the transmission side, a plurality of programs are distributed in parallel using a plurality of transmission channels (here, transmission channel 1 and transmission channel 2).

  Here, program 1 and program 3 are distributed in order using transmission channel 1. Further, program 2 and program 4 are distributed in order using transmission channel 2 which is another transmission channel.

And the transmission frequency of the broadcast program of each program of the program 1, the program 2, the program 3, and the program 4 is 4 times. As shown in the figure, each program can be supplemented with broadcasts up to 2 retransmissions (transmissions), and can be supplemented with broadcasts after 3 retransmissions (time).

In transmission of such a broadcast program, the broadcast complementable time zone of the program transmitted on the transmission channel 1 and the broadcast complementable time zone of the program transmitted on the transmission channel 2 are arranged so as to be shifted as shown in FIG. Enable complementary processing to be distributed. This can be expected to reduce the load on the network and server due to broadcast supplementation. That is, for example, program 1 can be supplemented with broadcast at the same timing as the start of distribution of program 2, but at this point, broadcast supplementation of program 2 is prohibited and broadcast supplementation of program 2 does not occur. Further, when the time advances and the broadcast complement of program 2 can be complemented, it is expected that the broadcast complement of program 1 by each receiver is progressed to some extent, and the load on the network and server due to the broadcast complement of program 1 and program 2 is expected. It can be expected to be dispersed.

Note that the broadcast supplement function for each program by each receiver may be dependent on the implementation of each receiver manufacturer or depending on the setting of each user, and automatically implements the broadcast supplement for each program stored at the timing when broadcast complement is possible. It is assumed that there are receivers, and there are receivers that verify the necessity of complementation (verification of lack of data) and broadcast complementation when the user instructs the receiver to play the stored program. .

  By configuring as described above, in this embodiment, in the broadcast complement method, the amount of communication for acquiring the supplement data increases, and a large load is imposed on the communication network, the server that distributes the supplement data, and the like. Problems can be reduced.

  Note that the above embodiment is not limited to the description itself, and in the implementation stage, the constituent elements can be variously modified and embodied without departing from the spirit of the invention.

  DESCRIPTION OF SYMBOLS 11 ... Broadcast transmission apparatus (content transmission apparatus), 12 ... Input terminal, 13 ... MPEG encoder, 15 ... TS conversion process part, 16 ... Encryption process part, 17 ... TS multiplexing part, 18 ... Input terminal, 19 ... Encryption Conversion processing unit, 20 ... content processing unit, 21 ... TS conversion processing unit, 22 ... EPG data generation unit, 23 ... TS conversion processing unit, 24 ... transmission path encoding unit, 25 ... output terminal, 26 ... antenna, 27 ... Output terminal 28 ... Network server (broadcast complement server) 29 ... Input terminal 30 ... Content recording device (HDD) 30a ... Hard disk 31 ... Network interface 32 ... Input / output terminal 33 ... Network 34 ... Broadcast reception Device (content receiving device), 35 ... antenna, 36 ... input terminal, 37 ... channel selection demodulator, 38 ... TS separator, 39 ... decoding processor, 4 ... PES / section separation unit, 41 ... MPEG decoder, 42 ... selective multiplexing unit, 43 ... program table creation unit, 44 ... content decoding unit, 45 ... HDD, 45a ... recorded (accumulated) on hard disk, 46 ... decoding Processing unit 47 ... Decoder 48 ... Video display unit 49 ... Speaker 50 ... Control unit 50a ... CPU 50b ... Memory unit 51 ... Operation unit 52 ... Communication control unit 53 ... Network interface 54 ... On Output terminal.

Claims (14)

Broadcasting means for repeatedly broadcasting data related to a broadcast program multiple times;
Complementary data transmission means for complementing the broadcast program in a communication path different from the broadcast;
Control signal output means for outputting a signal for controlling whether or not broadcast supplementation on the receiving side is prohibited and permitted using the supplementary data, and the prohibition and permission of the broadcast supplementation can be controlled according to the number of broadcast program transmissions. Broadcasting apparatus using a file casting method.   The broadcasting apparatus using a file casting method according to claim 1, wherein the number of transmissions for controlling prohibition and permission of the broadcast supplement is different for each broadcast program. Broadcast means for repeatedly broadcasting data related to the first broadcast program and the second broadcast program each of a plurality of times;
Complementary data transmitting means for transmitting first complementary data for complementing the first broadcast program and second complementary data for complementing the second broadcast program on a communication path different from the broadcast; ,
Control signal output means for outputting a signal for prohibiting and enabling the complementation of the broadcast program on the receiving side using the first complementary data and the second complementary data, and the first complementary data and the A broadcasting apparatus using a file casting method, wherein the second supplementary data is configured such that the timing at which the broadcast supplementation is permitted does not overlap.   The file according to claim 3, wherein the data related to the first broadcast program is transmitted in a first data stream, and the data related to the second broadcast program is transmitted in a second data stream. Broadcasting equipment using the casting method. Broadcast receiving means for receiving broadcast data relating to the first broadcast program and the second broadcast program;
Complement data for receiving the first supplement data for complementing the first broadcast program and the second supplement data for complementing the second broadcast program, transmitted via a communication path different from the broadcast. Group receiving means;
Control signal receiving means for receiving signals for prohibiting and enabling complementing of broadcast programs transmitted in association with the first complementary data and the second complementary data, the first and second A broadcast receiving apparatus using a file casting system, wherein prohibition and permission of the broadcast supplement are controlled according to the number of times broadcast data related to a broadcast program is transmitted.   6. The broadcast receiving apparatus using a file casting method according to claim 5, wherein the number of transmissions for controlling prohibition and permission of the broadcast complement is different between the first broadcast program and the second broadcast program. Broadcast receiving means for receiving broadcast data relating to the first broadcast program and the second broadcast program;
Complement data for receiving the first supplement data for complementing the first broadcast program and the second supplement data for complementing the second broadcast program, transmitted via a communication path different from the broadcast. Receiving means;
Control signal receiving means for receiving a signal for prohibiting and enabling the supplement of a broadcast program, transmitted in association with the first complementary data and the second complementary data, and the first complementary data And the second complementary data, the broadcast receiving apparatus using the file casting method, wherein the timing for enabling the broadcast complement is not overlapped. Repeatedly broadcasting data related to a broadcast program multiple times;
Transmitting complement data for complementing the first broadcast program on a communication path different from the broadcast;
A step of outputting a signal for controlling whether or not to complement the broadcast program on the receiving side using the complementary data group, wherein the prohibition and permission of the broadcast complement is configured to be controllable according to the number of times the broadcast program is transmitted A broadcasting method using a file casting method.   9. The broadcasting method using a file casting method according to claim 8, wherein the number of transmissions for controlling prohibition and permission of the broadcast supplement is different for each broadcast program. Repeatedly broadcasting data related to the first broadcast program and the second broadcast program respectively multiple times;
Transmitting first complementary data for complementing the first broadcast program and second complementary data for complementing the second broadcast program on a communication path different from the broadcast;
A step of outputting a signal for controlling prohibition and enablement of complementation of a broadcast program on the receiving side using the first supplementary data and the second supplementary data, wherein the first supplementary data and the second supplementary data are output. A broadcast method using a file casting method, wherein complementary data is configured such that the timing at which the broadcast complement is allowed does not overlap.   The file according to claim 10, wherein the data related to the first broadcast program is transmitted in a first data stream, and the data related to the second broadcast program is transmitted in a second data stream. Broadcasting method using casting method. Receiving broadcast data relating to the first broadcast program and the second broadcast program;
Receiving first complementary data for complementing the first broadcast program and second supplemental data for complementing the second broadcast program, transmitted via a communication path different from the broadcast; ,
Receiving a signal transmitted in association with the first supplementary data and the second supplementary data for prohibiting and enabling complementing of the broadcast program, the first and second broadcast programs A broadcast receiving method using a file casting method, wherein prohibition and permission of the broadcast supplement are controlled according to the number of times broadcast data is transmitted.   13. The broadcast receiving method using a file casting method according to claim 12, wherein the number of transmissions for controlling prohibition and permission of the broadcast supplement is different between the first broadcast program and the second broadcast program. Receiving broadcast data relating to the first broadcast program and the second broadcast program;
Receiving first complementary data for complementing the first broadcast program and second supplemental data for complementing the second broadcast program, transmitted via a communication path different from the broadcast; ,
Receiving a signal transmitted in association with the first complementary data and the second complementary data for prohibiting and enabling complementing of a broadcast program, the first complementary data group, A broadcast reception method using a file casting method, wherein the second supplementary data group is configured such that the timing at which the broadcast complementation is permitted does not overlap.

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