WO1999008444A1

WO1999008444A1 - Program transmitting device and method, program sending device, and program receiving device

Info

Publication number: WO1999008444A1
Application number: PCT/JP1998/003485
Authority: WO
Inventors: Hidemi Niibo
Original assignee: Sony Corporation
Priority date: 1997-08-05
Filing date: 1998-08-05
Publication date: 1999-02-18
Also published as: JPH1155634A

Abstract

A program transmitting device and method, a program sending device, and a program receiving device, which allow the receiving side to easily select information peculiar to the receiving side from among pieces of the information transmitted. The program sending device (sending means) adds a variety of identifiers to specific pieces of information to be broadcast for the same time through different channels. When the program receiving device (receiving means) receives information through a selected channel, if the identifier attached to the specific piece of information on the channel differs from the peculiar identifier preset in the program receiving device (receiving means), specific data at this time are replaced with specific piece of information to which the peculiar identifier is added. Thus, the receiving side easily selects the specific piece of information peculiar to the receiving side from among specific pieces of the information transmitted.

Description

Description Program transmission device and method, program transmission device and program reception device

The present invention relates to a program transmission device and method, a program transmission device, and a program reception device. For example, a communication satellite (CS) or a broadcasting satellite (BS) is provided. It is suitable to be applied to a digital broadcasting system using 1 ite). Background art

In recent years, digital broadcasting systems such as those shown in Fig. 4 have been considered. In the digital broadcasting system 1, the transmitting apparatus 2 multiplexes video and audio data of a plurality of programs, and obtains the obtained transport stream TS via a satellite repeater (trans- sponder). While transmitting to the receiving device 3, the TS packets of the video and audio data of the desired program are extracted from the transport stream TS received by the receiving device 3, and stored in these TS packets. Multiple programs can be broadcast simultaneously based on the video and audio data.

By the way, in the terrestrial TV broadcast of the NTSC system, it is common practice to insert a CM (commercial) according to each channel during program broadcast. At that time, since CM sponsors often differ for each region, it is necessary to introduce a unique CM that differs for each local station as a terrestrial relay station even when nationwide broadcasting by one station. Has been made.

However, in a digital broadcasting system, it is sufficiently possible to insert only CMs that are common throughout the country during nationwide network broadcasting, but in order to insert CMs that differ in each region, satellite channels must be installed in each region. It is considered very difficult in practice because it is necessary to set up a local relay station to receive the broadcast. Disclosure of the invention

The present invention has been made in consideration of the above points, and a program transmission apparatus and method, a program transmission apparatus, and a program capable of easily selecting information unique to a reception side from a plurality of pieces of transmitted information on a reception side. It is intended to propose a receiver.

In order to solve such a problem, according to the present invention, the program transmission apparatus includes a plurality of pieces of program information and specific information constituting each of a plurality of channels, for each specific information broadcast in the same time zone on each channel. Transmission means for multiplexing each piece of program information and each piece of specific information together with each identifier and transmitting the same, and distributing each piece of multiplexed program information, each piece of specific information and each identifier for each channel. After the extraction, when broadcasting the channel selected from each channel, if the identifier added to the specific information of the channel is different from the unique identifier set in the receiving means, the specific information is used as the unique identifier. And receiving means for replacing the specific information with the same identifier.

Further, in the present invention, in the program transmission method, among the plurality of program information and the specific information constituting each of the plurality of channels, various identifiers are assigned to the specific information broadcast in the same time zone on each channel. After the addition, the first step of multiplexing and transmitting each program information and each specific information together with each identifier, and extracting and extracting each multiplexed program information, each specific information and each identifier for each channel Later, when a channel selected from each channel is broadcast, if the identifier added to the specific information of the channel is different from the unique identifier set in the receiving means, the specific information is used as the unique identifier. And a second step of replacing with specific information to which the same identifier is added.

In this way, the transmitting means adds various identifiers to each specific information broadcast in the same time zone on each channel, while the receiving means adds the specific information to the specific information of the channel when the selected channel is broadcast. If the specified identifier is different from the unique identifier set in the receiving means, the specific data at this time is replaced with the specific information to which the unique identifier is added, so that the specific information Broadcast hours During this period, the specific information set in the receiving means can be broadcast.

Further, in the present invention, in the program transmitting apparatus, among various pieces of program information and specific information constituting each of the plurality of channels, various kinds of specific information broadcast in the same time zone on each channel are provided. After adding the identifier, each program information and each specific information are multiplexed with each identifier and transmitted.

Further, in the present invention, in the program receiving apparatus, among a plurality of pieces of program information and specific information constituting each of the plurality of channels, various identifiers are provided for each piece of specific information broadcast in the same time zone on each channel. Is added, and each program information and each specific information multiplexed with each identifier are distributed and extracted for each channel, and when the channel selected from each channel is broadcast, the specific information of the channel is broadcasted. When the identifier added to the identifier is different from the unique identifier set in the receiving means, the specific information is replaced with the specific information to which the same identifier as the unique identifier is added. As a result, each channel is changed. Various identifiers are added to each piece of specific information that is broadcast in the same time zone, while the channel selected by the program receiving device is broadcast when the channel is broadcast. When the identifier added to the specific information of the channel is different from the unique identifier set in the program receiving device, the specific data at this time is replaced with the specific information to which the unique identifier is added. During the broadcast period of the specific information, the specific information set in the program receiving device can be broadcast. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic diagram illustrating a configuration of a digital broadcasting system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the receiving device according to the embodiment of the present invention. FIG. 3 is a schematic diagram for explaining a CM replacement process according to a reception area. FIG. 4 is a schematic diagram showing the configuration of a conventional digital broadcasting system. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1 in which parts corresponding to those in FIG. 4 are assigned the same reference numerals, reference numeral 10 denotes a digital broadcasting system as a whole, and a transmission device 11 includes programs and CM images constituting a plurality of channels, respectively. The audio data (hereinafter referred to as program data and CM data, respectively) is compression-encoded and multiplexed according to the MPEG 2 (Movin Picture Experts Group 2) standard, and this is a transport story. It is transmitted to the satellite transponder 3 as a frame TS.

When generating the transport stream TS by multiplexing, the transmitting apparatus 11 allocates and adds ID data corresponding to each channel to each start position of a plurality of program data. At the same time, ID data unique to each reception area (hereinafter simply referred to as ID data) is assigned and added to the start position of the CM data attached to each program data.

Also, the transmission device 11 starts broadcasting each program and CM broadcast in the same time zone on a plurality of channels, that is, the time for broadcasting ID data added to the start position of each program data and each CM data. The cue signal S 1 is transmitted in synchronization with the ringing.

Subsequently, the receiving device 12 transmits, from the transport stream TS received via the satellite repeater 3, program data to be broadcast in the same time zone on each channel or a TS packet of CM data. , And different programs or CMs can be simultaneously broadcast for each channel based on the program data or CM data stored in these TS packets.

As shown in FIG. 2, the receiving apparatus 12 is composed of a receiving antenna section 20, a set-up box section 21 and a monitor 22, and a transport port received via the receiving antenna section 20. The stream TS and the cue signal S1 are sent to the first and second tuners 23 and 24 and the tuning controller 25 in the set-top box 21 respectively. It will be served.

The first and second tuner sections 23 and 24 are each provided with a plurality of channels based on the TS bucket of the program data and CM data extracted from the supplied transport stream TS. Minutes of programs or commercials at the same time. An operation input unit 26 is connected to the channel selection control unit 25, and a channel selection signal S2 for selecting a desired channel among a plurality of channels is operated by an operator via the channel selection control unit 25. And sends it to the first tuner section 23. As a result, the first tuner section 23 selects one channel from among the plurality of channels based on the channel selection signal S 2, and respectively divides the program data and CM data constituting the selected channel. After decoding via the decoder 27, it is supplied to the input terminal a of the switcher 29. Further, in the channel selection control section 25, ID data unique to the receiving area of the receiving device 12 (hereinafter referred to as unique ID data) is set in advance, and an ID memory (not shown) is set. Is stored in Then, the tuning control unit 25 extracts a TS bucket of CM data from the supplied transport stream TS, and the ID data added to the CM data is used as an ID memory. It determines whether or not it matches with the unique ID data stored in the memory, and sends the tuning signal S 3 to the second tuner section 24 only when it matches.

Thereby, the second tuner section 24 selects the same channel as the channel having the CM data to which the unique ID data is added from the plurality of channels based on the channel selection signal S 3, After the program data and CM data constituting the selected channel are decoded through the decoder 28, respectively, they are supplied to the input terminal b of the switcher 29 and lined up.

At the time of broadcasting, the channel selection control unit 25 synchronizes with the timing of broadcasting the ID data added to the start position of each program data and each CM data based on the input cue signal S 1 The switching signal S 6 is sent to the switcher 29. As a result, the switcher 29 is switched to the input terminal a at the start of the broadcast of the program broadcast in the same time zone on each channel, and the CM of the CM broadcasting in the same time zone on each channel is switched. At the start of broadcasting, it is switched to input terminal b.

In this way, the program broadcast in the same time zone on the channel selected by the first tuner section 23 is a program on the nationwide network, and the CM broadcast in the same time zone on the channel is a national network program. However, even if the CM is unique to the receiving area of the receiving device 12, only the broadcast time zone of the CM is switched to the output side of the second tuner section 24, so that during this broadcast time zone CMs for nationwide networks can be replaced with CMs specific to the receiving area of the receiving device 12.

Thus, the program data and CM data for one channel are given to the monitor 22 via the switcher 29, and the monitor 22 displays these programs and CM images and outputs sound.

In practice, in the digital broadcasting system 10 having such a configuration, as shown in FIG. 3A, for example, as shown in FIG. 3A, program data and CMs respectively constituting three channels CH1, CH2, and CH3 are transmitted from the transmitting device 11. When data is multiplexed and transmitted, three types of program data of "movie", "drama" and "spot" are assigned to each channel CH1, CH2 and CH3, and the respective program data The three types of CM data of “for Sapporo”, “for Osaka” and “for Fukuoka” are allocated at predetermined intervals and inserted.

. The channel CH 1 this time, the broadcasting time T. And T ₃ together with the ID data ID _CM start position of the CM data "Sapporo for" is added, the ₂ and broadcast time T of the "movie" ID data ID _PG is added to the start position of the program data. For channel CH 2 is also the broadcast time T 1 and T ₃ with the ID data ID _CM is added to the beginning of the C Micromax data "Osaka for" the broadcasting time T ₂ and T 4 "drama" ID data ID _PG is added to the start position of the program data. For channel CH 3 is in is et al., Is the broadcast time T 1 and T ₃ together with the ID data ID _CM to the start position of the CM data of "Fukuoka for" is added, the broadcast time T ₂ and T * is "sports ID data ID _PG is added to the start position of the program data Subsequently, the transport stream TS for three channels CH1, CH2 and CH3 is transmitted via satellite transponder 3 to three locations of "Sapporo", "Osaka" and "Fukuoka", respectively. When the signal is received by the receiving device 12 in the receiving area, first, in the receiving device 12 of “Sapporo”, as shown in FIG. 3B, only the channel CH 1 is broadcast as it is, and the channels CH 2 and CH 3 are described above. be replaced insert set between the door Ppubokkusu section 2 1 use stomach broadcast time T i ~T ₂ and between the Τ ₃ ~Τ ₄ only to the CM data "for Sapporo".

Also, as shown in Fig. 3C, only the channel CH2 is broadcast as it is on the receiver 12 in "Osaka", and the channels CH1 and CH3 are broadcast using the set-top box 21 described above. time Τ, is presumed dead, switch between ~T ₂ and Τ 3 ~Τ * between only the CM data "for Osaka". Further, in the receiving device 12 of “Fukuoka”, as shown in FIG. 3D, only the channel CH 3 is broadcast as it is, and the channels CH 1 and CH 2 are transmitted using the above-described set-up box 21. Broadcast time T! Between ~ T ₂ and T 3 ~T * between only is presumed dead, switch to the C Μ data "for Fukuoka".

In the above configuration, in the digital broadcasting system 10, the transmitting apparatus 11 transmits a plurality of program data and C # data, each of which constitutes a plurality of channels, to be broadcast in the same time zone on each channel. After adding various ID data to the data, each program data and each CC data are multiplexed and transmitted together with each ID data.

On the other hand, the receiver 12 sorts out the plurality of transmitted program data, CM data, and ID data for each channel, extracts the data, and then broadcasts the selected channel from among the channels. If the ID data added to the CM data of the channel is different from the unique ID data corresponding to the receiving area of the receiving device 12, replace the CM data at this time with the CM data added with the unique ID data. To

In this way, the programs broadcast in the same time zone on each channel are programs on the nationwide network, and the CMs broadcast in the same time zone on each channel are not for the nationwide network. Even if the CM is unique to the receiving area of the receiving device 12, a CM unique to the receiving region of the receiving device 12 can be broadcasted in place of the CM for the national network during this broadcast time zone. .

According to the above configuration, in the digital broadcasting system 10, the transmitting device 11 adds various ID data to each CM data broadcast in the same time zone on each channel. If the ID data added to the CM data of the channel selected by the receiving device 12 differs from the unique ID data corresponding to the receiving area of the receiving device 12 when broadcasting the channel selected by the receiving device 12, By replacing CM data with CM data to which unique ID data has been added, it is possible to broadcast a unique CM corresponding to the receiving area of the receiver 12 during the CM data broadcast time zone. Thus, the receiving side can easily select the CM data unique to the receiving side from the plurality of CM data thus transmitted.

In the above-described embodiment, a case has been described in which a plurality of channels are each composed of a plurality of pieces of program information (program data) and specific information (CM data). However, the present invention is not limited to this. The information may be widely applied to various kinds of specific information such as program data such as news / disaster information in addition to CM data.

Further, in the above-described embodiment, transmitting apparatus 11 as transmitting means adds an identifier (ID data) unique to each receiving area to each CM data broadcast in the same time zone on each channel. However, the present invention is not limited to this, and any identifier other than ID data unique to each reception area may be used as long as it is unique ID data that can be arbitrarily set in each receiving device 12. Various identifiers may be added.

Further, in the above-described embodiment, the first and second tuners 23 and 24 in the receiver 12 are applied as the first and second channel selecting means in the receiving means. Although the case has been described, the present invention is not limited to this. In other words, if the multiplexed program data, CM data and ID data can be sorted and extracted for each channel, various other A configuration may be applied. Furthermore, in the above-described embodiment, a case has been described where the operation input unit 26 in the receiving device 12 is applied as an input unit in the receiving unit. However, the present invention is not limited to this, and an operator However, as long as a desired channel can be selected from among the channels allocated in the first tuner section 23, various other configurations may be applied.

Furthermore, in the above-described embodiment, a case has been described in which the operation control unit 25 in the reception device 12 is applied as the control unit in the reception unit, but the present invention is not limited to this. In short, it is possible to select a channel having CM data to which the same ID data as the unique ID data set in the receiving device 12 is added from among the channels allocated in the second tuner section 24. If possible, various other configurations may be applied.

Furthermore, in the above-described embodiment, a case has been described where the operation control unit 25 and the switch 29 in the receiving device 12 are applied as selecting means in the receiving means, but the present invention is not limited to this. However, when the channel selected in the first tuner section 23 is broadcast and the ID data added to the CM data of the channel is different from the unique ID data, the second tuner section 2 As long as the channel selected in 4 can be selected, various other configurations may be applied.

Further, in the above-described embodiment, the case where the present invention is applied to digital broadcasting system 10 has been described. However, the present invention is not limited to this, and may be applied to an analog broadcasting system such as a MUSE broadcasting system. May be applied.

As described above, according to the present invention, various identifiers are added to each specific information to be broadcast in the same time zone on each channel in the transmitting means, while the selected channel is broadcast in the receiving means when the selected channel is broadcast. When the identifier added to the specific information is different from the unique identifier set in the receiving means, the specific data at this time is replaced with the specific information to which the unique identifier is added. Thus, it is possible to realize a program transmission apparatus and a method capable of easily selecting, on the receiving side, specific information specific to the receiving side from among a plurality of pieces of transmitted specific information. Further, according to the present invention, the program transmitting apparatus adds various identifiers to each specific information broadcasted in the same time zone on each channel, while the program receiving apparatus broadcasts the selected channel when the channel is broadcast. When the identifier added to the specific information is different from the unique identifier set in the program receiving device, the specific data at this time is replaced with the specific information to which the unique identifier is added. A program transmitting apparatus and a program receiving apparatus capable of easily selecting, on the receiving side, specific information unique to the receiving side from among a plurality of transmitted pieces of specific information can be realized. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention can be used in a broadcasting system using a broadcasting satellite or a communication satellite when a receiving side selects a different CM for each region during nationwide broadcasting.

Claims

The scope of the claims

1. From among a plurality of program information and specific information constituting each of a plurality of channels, various identifiers are added to each of the specific information broadcast in the same time zone on each channel, and then each of the program information Transmitting means for multiplexing and transmitting each of the specific information together with each of the identifiers;

After the multiplexed program information, the specific information, and the identifiers are extracted and sorted for each channel, when the channel selected from among the channels is broadcast, the channel When the identifier added to the specific information is different from the unique identifier set in the receiving means, the receiving means replaces the specific information with the specific information added with the same identifier as the unique identifier. A program transmission device comprising:

2. The receiving means

First and second channel selection means for distributing and extracting the multiplexed program information, the specific information, and the identifier for each channel; and the first channel selection. Input means for selecting a desired channel from the above-mentioned channels allocated by the means;

The channel having the specific information to which the same identifier as the unique identifier set in the receiving means is added is selected from the channels allocated by the second channel selecting means. Control means;

If the identifier added to the specific information of the channel is different from the unique identifier when the channel selected by the first channel selecting means is broadcast, the second channel selection is performed. Selecting means for selecting the channel selected by the station means;

The program transmission device according to claim 1, further comprising:

3. From among a plurality of program information and specific information constituting each of the plurality of channels, various identifiers are added to each of the specific information broadcast in the same time zone on each channel, and then each of the program information and each specific information is added. A first step of multiplexing the specific information with each of the identifiers and transmitting the multiplexed information;

After the multiplexed program information, the specific information, and the identifiers are extracted for each of the channels and extracted, when the channel selected from the channels is broadcast, the channel is broadcast. If the identifier added to the specific information is different from the unique identifier set in the receiving means, the specific information is replaced with the specific information added with the same identifier as the unique identifier. Step 2 and

A program transmission method characterized by comprising:

4. From among a plurality of program information and specific information constituting each of the plurality of channels, various identifiers are added to each of the specific information broadcast in the same time zone on each of the channels, and then each of the program information and the specific information is added. Each of the above specific information is multiplexed with each of the above identifiers and transmitted.

A program transmission device characterized by the above-mentioned.

5. Among the plurality of program information and the specific information constituting each of the plurality of channels, various identifiers are added to each of the specific information broadcast in the same time zone on each of the channels, and multiplexed with each of the identifiers. After extracting each of the above-mentioned program information and each of the above-mentioned specific information by allocating them to each of the above-mentioned channels, and adding them to the above-mentioned specific information of the above-mentioned channels at the time of broadcasting a channel selected from among the above-mentioned channels. If the specified identifier is different from the unique identifier set in the receiving means, the specific information is replaced with the specific information to which the same identifier as the unique identifier is added.

A program receiving apparatus, comprising:

6. The above receiving means

First and second channel selection means for distributing and extracting each of the multiplexed program information, each of the specific information, and each of the identifiers for each of the channels, and the first channel selection means Input means for selecting a desired channel from among the above-mentioned channels allocated in the step;

Control means for selecting a channel having the specific information to which the same identifier as the unique identifier set in the receiving means is added, from the respective channels allocated in the second channel selecting means; When,

If the identifier added to the specific information of the channel is different from the unique identifier at the time of broadcasting the channel selected by the first channel tuning means, the second channel tuning means Selecting means for selecting the channel selected in

6. The program receiving device according to claim 5, comprising: