JP2003284027A - Data broadcast system, data broadcasting method, broadcast station, broadcast operation managing apparatus and broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a broadcast service fit to the demands of viewers. <P>SOLUTION: The broadcast channel is divided into a first usual broadcast channel and a second channel for selective broadcast programs only. A broadcast station BS previously stores data of a plurality of selective broadcast programs. A broadcast managing center BC collects program acquisition requests from the audience having broadcast receivers RS1-RSn and weights them using condition information, obtains statistical data from the weighted program acquisition requests, an transmits the statistical data to the broadcast station BS. The broadcast station BS selects corresponding selective broadcast programs, based on the statistical data informed from the managing center BC, and broadcasts them over the second broadcast channel. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

The present invention relates to a satellite broadcasting / communication system, a terrestrial broadcasting / communication system, a data broadcasting system for broadcasting program data of a data broadcasting, a data broadcasting method, a broadcasting station, a broadcasting operation management device and a broadcasting reception. Regarding the device.

[0002]

2. Description of the Related Art Digital broadcasting is expected to be further enhanced as digitalization progresses from communication satellites (CS) to cable TV and terrestrial broadcasting.

The most important feature of digital broadcasting is that the introduction of information compression technology improves the efficiency of use of frequencies required for program transmission and enables the number of broadcasting channels to be increased as compared with analog broadcasting. is there. Furthermore, since high-level error correction technology can be applied, high quality and uniform service can be provided.

Further, the digitization enables not only the conventional broadcasting of images and sounds but also the broadcasting of characters and data (data broadcasting). For example, news can be sent as character data, and personal computer (PC) software can be distributed by broadcasting, and systems for providing such services have been introduced one after another.

[0005]

By the way, with the above digitization, viewers can select their favorite program data from a wide variety of broadcast program data, but on the other hand, the broadcasting station or the program creator can use the broadcast service. Qualitative improvement is required. As this broadcasting service, a viewer selection type broadcasting service that broadcasts a program reflected in the request from the viewer can be considered.

However, the above-mentioned viewer-selection type broadcasting service is still under examination and has not been realized yet.

Therefore, an object of the present invention is to realize a broadcasting service according to the viewer's request, thereby improving the entertainment of the viewer and expanding the utilization of the broadcasting service. A data broadcasting method, a broadcasting station, a broadcasting operation management device, and a broadcasting receiving device are provided.

[0008]

In order to achieve the above object, the present invention is configured as follows.

(1) A broadcasting station that broadcasts a broadcasting signal including program data of a data broadcasting on a predetermined broadcasting network based on a predetermined broadcasting time, and a broadcasting signal broadcast by the broadcasting network. And a plurality of broadcast receiving devices for reproducing the program data of the data broadcast, and the broadcast station defines at least a part of the plurality of channels of the broadcast network as a first channel group, and through the first channel group, The program data of the first data broadcast to be broadcast is broadcast based on the broadcast time, and at least a part of a plurality of channels different from the first channel group is set as the second channel group, and the first data is transmitted through the second channel group. Different from the broadcast program data, the program data of the second data broadcast is broadcast at the request of the viewer, and
Broadcast program data storage means for storing program data of a plurality of second data broadcasts, and information indicating request contents regarding program data of the second data broadcast from viewers of a plurality of broadcast receiving devices and parameter information regarding viewers. When the program acquisition request is notified, at least one program data is read out from the plurality of program data stored in the broadcast program data storage means in response to the program acquisition request, and the second program data is read.
And a broadcast program data transmission means for broadcasting via a channel group.

According to the invention of (1), the broadcast network is divided into a first channel group and a second channel group, which are commonly used for program data transmission of the first data broadcast and program data transmission of the second data broadcast. Therefore, it is not necessary to separately prepare a network for transmitting the program data of the second data broadcast. Further, the broadcast station pre-stores the program data of the plurality of second data broadcasts, and when each viewer of the plurality of broadcast receiving apparatuses notifies the program acquisition request, the request included in the program acquisition request. Based on the content, the corresponding program data is selected from the program data of the plurality of second data broadcasts, and is broadcast via the second channel group of the broadcast network. Therefore, each viewer can view the program data according to his / her demand.

(2) The broadcast operation management apparatus further comprises a broadcast operation management apparatus connected to the broadcast station via a communication network, and the broadcast operation management apparatus issues a program acquisition request notified from each viewer of the plurality of broadcast receiving apparatuses. The program acquisition request collecting means for collecting and the collected information transmitting means for transmitting the collected information by the program acquisition request collecting means to the broadcasting station via the communication network, the broadcasting program data transmitting means of the broadcasting station It is characterized in that the program data to be transmitted is specified from among the program data of the plurality of second data broadcasts stored in the broadcast program data storage means based on the collected information coming from the operation management device.

According to the invention of (2), since the broadcast operation management apparatus can be made to collect the program acquisition request from each viewer, the processing load of the broadcasting station can be kept low.

(3) When the broadcast operation management device is connected to a plurality of broadcast receiving devices via a communication network, each of the plurality of broadcast receiving devices communicates a program acquisition request to the broadcast operation managing device. The program acquisition request transmitting means for transmitting via the network is provided, and the program acquisition request collecting means of the broadcast operation management apparatus is characterized by collecting the program acquisition request coming from the broadcast receiving apparatus via the communication network.

According to the invention of (3), the program acquisition request of each viewer is transferred from each broadcast receiving device to the broadcast operation management device and aggregated. Therefore, it is possible to efficiently collect the program acquisition requests of a large number of viewers in a short time, and as a result, it is possible to always feed back accurate and new collected information to the broadcasting station.

(4) The collected information transmitting means of the broadcast operation management apparatus weights the collected information of the program acquisition request with predetermined condition information and transmits it to the broadcast station, and the broadcast program data transmitting means of the broadcast station operates the broadcast operation. It is possible to specify program data to be transmitted from a plurality of program data of the second data broadcast stored in the broadcast program data storage means based on predetermined condition information weighted to the collected information coming from the management device. Characterize.

As the condition information, member information, member contract information (year, month, etc.), shopping use information (shopping use amount, etc.), communication use information (uplink communication use amount, etc.), viewer's personal information ( Age, date of birth, gender, occupation, address, etc.)

According to the invention of (4), when a program acquisition request is received from a large number of viewers, the broadcasting station stores a plurality of pre-stored programs based on the condition information weighted in the program acquisition request. The program data of the second data broadcast is selected in descending order of priority, and one of them is transmitted via the second channel group. For this reason, even if the program acquisition requests from a large number of viewers are concentrated in the same time zone, it is possible to respond to this relatively flexibly, and this makes it possible to provide a detailed broadcasting service for each viewer and a broadcasting station. It is possible to provide a system that achieves both efficient operation. Further, since the viewer who is a system member or the viewer having a high shopping usage rate and communication usage rate of the system is given the highest priority, it is possible to promote the subscription of the broadcasting service user. Furthermore, the viewer's personal information can be used to specify program data according to the age, sex, or time zone.

(5) The broadcast operation management device authenticates a plurality of broadcast receiving devices via a communication network before transmitting a program acquisition request and an authentication information storage means for storing the authentication information of each viewer. Authentication information transmission requesting means for making a transmission request of the authentication information, and when the authentication information comes from the broadcast receiving device in response to the transmission request, the authentication information corresponding to the authentication information stored in the authentication information storage means. Authentication information comparing and collating means for comparing and collating with the use information, the collected information transmitting means determines whether or not the program acquisition request can be permitted based on the comparison and collation result by the authentication information comparing and collating means, The feature is that the program acquisition request is transmitted only when it is determined that the program acquisition request can be permitted.

According to the invention of (5), the viewer authentication is checked by using the viewer authentication information held by the broadcast operation management apparatus, prior to the transmission of the program acquisition request. It is possible to surely judge in advance the validity of.

(6) When a plurality of retransmitting devices for receiving a broadcast signal and retransmitting them to a specific area are further provided, in response to a program acquisition request notified from the viewers of the receiving areas of the plurality of retransmitting devices. It is characterized in that at least one program data is read out from a plurality of program data stored in the broadcast program data storage means, is sent to a corresponding retransmission device, and is multiplexed from the retransmission device.

According to the invention of (6), the program acquisition request from each viewer is collected for each reception area of the retransmission device, and the second broadcast program data based on the collected information is sent to the retransmission device for multiplex transmission. Therefore, the optimal broadcasting service can be realized for each region.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First Embodiment) FIG. 1 is a block diagram showing the configuration of a data broadcasting system according to the first embodiment of the present invention. In FIG. 1, BS is a broadcasting station and ST
Is a broadcasting satellite, RS1 to RSn are broadcasting receivers, NW is a telephone / mobile telephone public network, a network including the Internet, BC is a broadcasting operation management center, and PW is a dedicated network.

The broadcast signal transmitted from the broadcasting station BS to the broadcasting satellite ST is sent to the whole country via the broadcasting satellite ST. The broadcast receivers RS1 to RSn receive and reproduce the broadcast signal coming from the broadcast satellite ST.

The broadcasting operation management center BC is installed, for example, for each broadcasting station BS, and is connected to the broadcasting station BS via its own dedicated network PW. Then, as a function for managing the broadcast program broadcast by the broadcasting station BS, the program acquisition request collection control unit 111 and the statistical processing unit 11 are provided.
2, a statistical data notification control unit 113, an authentication data management unit 114, an authentication request transmission unit 115, and an authentication processing unit 1.
16 and 16.

The program acquisition request collection control unit 111 stores the program acquisition request notified from each viewer in the viewer database in association with the viewer. In this program acquisition request,
It includes the content of the program request, parameter information about the viewer, and the like.

The statistical processing unit 112 calculates statistical data including the number of requests and the total number of parameter information for each broadcast program based on the program acquisition requests accumulated in the viewer database. At this time, the statistical data includes member information indicating whether the requested viewer is a member of a system registered in advance or a special member, a membership contract date of the system registered in advance. Membership contract information indicating the day,
Shopping usage information indicating the total purchase amount of online shopping during the unit period, communication usage information indicating the total usage amount of uplink communication charges during the unit period of the system, viewing time indicating the total viewing time of system programs or commercials The information is weighted by the condition information of at least one of the viewer's personal information.

The statistical data notification control unit 113 transmits the statistical data calculated by the statistical processing unit 112 to the broadcasting station BS via the dedicated network PW.

The authentication data management section 114 registers and manages the authentication data in association with the viewer. The authentication data includes an ID or a telephone number unique to the broadcast receivers RS1 to RSn.

The authentication request transmission unit 115, for example, the broadcast receiver RS1 that has made a request for a selective broadcast program prior to the transmission of statistical data by the statistical data notification control unit 113.
~ Send an authentication data acquisition request to RS3 via the network NW.

The authentication processing unit 116 receives the authentication data from the broadcast receivers RS1 to RS3 after transmitting the authentication data acquisition request by the authentication request transmission unit 115, and uses the authentication data for the authentication. Data management unit 114
The data is compared and collated with the corresponding authentication data, and the statistical data notification control unit 113 is allowed to transmit the statistical data based on the comparison and collation result.

FIG. 2 is a block diagram showing a concrete configuration of the broadcasting station BS.

The broadcast station BS includes a broadcast program sending section 121,
And a selective broadcast program production section 122. The broadcast program sending unit 121 accumulates the number of separately created program data, allocates these program data to the first broadcast channel in a predetermined broadcast network and outputs them to the sending unit 123 at each broadcast time. The transmitter 123 converts the program data of the first broadcast channel into a broadcast signal, and broadcasts this broadcast signal from an antenna (not shown).

The selectable broadcast program production section 122 produces selectable broadcast programs such as movies, music, news, shopping, and game programs, and stores the data of these selectable broadcast programs in the storage section 124. The accumulated program data is selectively read by the selective broadcast program sending section 125.

Further, the broadcasting station BS is provided with a communication modem 126. The communication modem 126 communicates with the broadcast operation management center BC via the dedicated network PW, and receives statistical data sent from the broadcast operation management center BC.

The selective broadcast program sending section 125 is based on the statistical data received via the communication modem 126.
Corresponding program data is read from the plurality of program data stored in the storage unit 124, this program data is assigned to a second broadcast channel different from the first broadcast channel, and is output to the multiplexing unit 127.

The multiplexing unit 127 includes the broadcast program sending unit 1 described above.
21 to the program data of the first broadcast channel output from
The program data of the second broadcast channel output from the selective broadcast program sending section 125 is multiplexed. Then, the multiplexed broadcast signal is transmitted by the transmitter 123.

FIG. 3 is a block diagram showing a concrete configuration of the broadcast receivers RS1 to RSn. Here, the broadcast receiver RS1 will be described as a representative.

In the broadcast receiver RS1, the antenna 13
The broadcast signal from the broadcast satellite ST received by the signal No. 1 passes through the tuner 132 and is sent to the CDM demodulation / FEC processor
The program data is extracted by the demodulation process of No. 3, and the contents of video, audio, and data are decoded by the decoder unit 134, separated and output, and appropriately reproduced.

If the program data contains selective program guide information and the user desires the selective program, the operation input section 135 is operated in a predetermined manner to cause the download processing section 136 to perform the selective program guide information. To download. This information indicates an operation procedure for viewing the selective broadcast program, which is reproduced through the decoder unit 134.
The user inputs the program acquisition request information while looking at the reproduction screen.

When a series of operation inputs are completed, the online processing control unit 137 is activated and controls the communication modem 138 so as to access the address of the online connection destination included in the program acquisition request information. Communication modem 138
Is connected to a telephone line or a mobile phone, and the control unit 137
When the access instruction is received under the control of the broadcasting operation management center B of the designated address through the network NW.
It connects to C and enables two-way communication with the broadcasting operation management center BC.

Further, the broadcast receiver RS1 is provided with an authentication data management section 139 for registering and managing the authentication data and reading and outputting the data in response to a request. Also, one time pad
It shall have a function to register secret information such as random numbers that is given individually.

Next, a procedure for requesting viewing of a selective broadcast program in the above system will be described.

FIG. 4 is a flow chart for explaining the processing operation of the broadcast receiver RS1.

When the selective program guide information is downloaded to the download processing section 136 according to the desire of the selective program (step ST4a), the broadcast receiver RS1 reproduces and displays it through the decoder 134 (step ST4).
b). Here, the viewer inputs necessary information regarding the desire of the selective program according to the guidance on the screen. The necessary items to be input are information indicating the program to be viewed, user ID, member number, telephone number, and the like. During this time, the broadcast receiver RS1
Monitors whether or not information regarding the desire of the selective program is input (step ST4d).

When the input of the necessary items is completed, the broadcast receiver RS1 transmits a program acquisition request including the input information to the broadcast operation management center BC (step ST4e).

On the other hand, if another menu is selected in step ST4d, the broadcast receiver RS1 executes the process for the other menu.

FIG. 5 is a flow chart shown for explaining the processing operation of the broadcast operation management center BC.

That is, when the broadcast operation management center BC receives the program acquisition request from the broadcast receiver RS1 (step ST5a), the broadcast operation management center BC requests the broadcast receiver RS1 as the request source to transmit the authentication data (step ST5b). .

When the authentication data is received from the requesting broadcast receiver RS1 in response to the above request, the authentication data is compared and collated with the authentication data registered and managed in advance, and based on the comparison and collation result. The validity of the viewer is judged (step ST5c). If the viewer is not an authorized viewer, or if the authentication data does not arrive within a certain period of time after the request (NG), the broadcast operation management center BC cannot authenticate the broadcast receiver RS1 that is the request source. Is notified (step ST5d).

On the other hand, if the viewer is a legitimate viewer (O
K), the broadcasting operation management center BC weights the condition information to the information indicating the request content and the parameter information included in the transmitted program acquisition request (step ST5).
e), this weighted program acquisition request is combined with other program acquisition requests to generate statistical data, and this statistical data is transmitted to the broadcasting station BS (step ST5f).

FIG. 6 is a flow chart for explaining the processing operation of the broadcasting station BS.

In the broadcasting station BS, when the selective broadcast program sending section 125 receives the statistical data from the broadcast operation management center BC (step ST6a), the selective broadcast program priority is given to the selective program based on the condition information weighted to the statistical data. The order is determined (step ST6b).

As a method of determining the priority order, it is judged whether or not the viewer included in the statistical data is a member of this system, and the request of the viewer who is a member is given the highest priority. Subsequently, among the viewers who are members, the top priority is given to the viewers who have a high shopping usage rate of the system and the viewers who have a high communication usage rate. Furthermore, the viewer's personal information is divided into addresses and ages to give priority.

Then, the selective broadcast program transmitting section 125
It is determined whether the program data with the first priority stored in storage unit 124 is accumulated or is being broadcast (step ST6c). If broadcasting is possible here (Yes), the selective broadcast program transmitting unit 125 reads the program data with the first priority from the storage unit 124 (step ST6d), and the read program data to the multiplexing unit 127. Output (step ST6e).

Subsequently, the selective broadcast program transmitting section 125
It is judged whether or not the priority number i has reached the requested program number m (step ST6f), and if not, the next rank, that is, the second priority is judged (step ST6).
g), the processing of steps ST6c to ST6f is executed for the program data having the second highest priority.
After that, the processes of steps ST6c to ST6f are repeatedly executed until the priority number i reaches the number of programs m.

In step ST6c, when the corresponding program data is being broadcast or is not stored in the storage section 124 (No), the selective broadcast program sending section 125 performs the process of step ST6f. And the above-mentioned step ST6c is performed for the program data of the next order.
The process of step ST6f is executed.

As described above, according to the first embodiment, the broadcast channel is divided into the normal first broadcast channel and the second channel dedicated to the selective broadcast program. There is no need to prepare a separate network for broadcasting. In addition, the broadcasting station BS stores the data of a plurality of selective broadcast programs in the storage unit 124 in advance, and when the viewers of the broadcast receivers RS1 to RSn notify the program acquisition request, the program acquisition is performed. A corresponding program is selected based on the content of the request contained in the request and is broadcast through the second broadcast channel. Therefore, each viewer can view the broadcast program according to his / her demand.

Further, according to the first embodiment, the broadcast operation management center BC is made to collect the program acquisition request from each viewer, so that the processing load of the broadcasting station BS can be suppressed to that low. . Also, the program acquisition requests of each viewer are transferred from their respective broadcast receivers RS1 to RSn to the broadcast operation management center BC via the network NW, and are aggregated. Therefore, it is possible to efficiently collect the program acquisition requests of a large number of viewers in a short time, and thereby it is possible to always feed back accurate and new statistical data to the broadcasting station BS.

Further, according to the first embodiment, when the broadcast station BS receives a program acquisition request from a large number of viewers, the storage unit is based on the condition information weighted to the program acquisition request. A plurality of program data stored in 124 can be selected and broadcast in descending order of priority. Therefore, even if the program acquisition requests from a large number of viewers are concentrated in the same time zone, it is possible to respond to the request relatively flexibly, and this makes it possible to provide a detailed broadcasting service for each viewer and the broadcasting station BS. It is possible to provide a system that achieves both efficient operation. Further, since the viewer who is a system member or the viewer having a high shopping usage rate and communication usage rate of the system is given the highest priority, it is possible to promote the subscription of the broadcasting service user. further,
It is also possible to specify the broadcast program according to the age, sex, or time zone by using the personal information of the viewer.

Further, according to the first embodiment, the viewer authentication data held by the broadcast operation management center BC is used to check the viewer authentication before transmitting the statistical data. Thus, the legitimacy of the viewer can be surely judged in advance.

(Other Embodiments) The present invention is not limited to the above embodiments. For example, in the above system, it is considered that a gap filler (retransmission device) receives a broadcast signal and retransmits it to the area where the broadcast signal from the satellite cannot be received.
This gap filler can replace the information of some channels at the time of retransmission or can multiplex other information.

Therefore, the program acquisition request notified from the viewer in the re-transmission / reception area of the gap filler is collected, the broadcast program data based on the collected information is sent to the corresponding gap filler, and the gap filler multiplex-transmits. According to this structure, it is possible to independently transmit the requested information in units of the reception area of the gap filler, and it is possible to realize the optimum broadcasting service for each area.

In each of the above embodiments, an example in which a program acquisition request from a viewer is transferred from each of the broadcast receivers RS1 to RSn to the broadcast operation management center BC via the network NW has been described, but the present invention is not limited to this. Instead, it may be transmitted by FAX or by using mail. Further, the program acquisition request may be directly transmitted to the broadcasting station BS.

Further, in each of the above embodiments, the selective program guide information provided by the broadcast signal is downloaded, and the viewer receives the broadcast receiver R according to the selective program guide information.
Although the example of inputting the program acquisition request using S1 to RSn has been described, the present invention is not limited to this, and the program acquisition request is issued according to the guide of the selective program published in, for example, newspapers or program guidebooks. It may be sent to BC.

In each of the above embodiments, the broadcasting satellite ST
Although the data broadcasting system using the above has been described as an example, the present invention is similarly applicable to a data broadcasting system using a communication satellite and a cable television (CATV) system.

In addition, the system configuration, the configuration of the broadcasting station, the broadcasting receiver, the broadcasting operation management center and the gap filler, the method of collecting the program acquisition request, the content of the statistical processing of the statistical data, the content of the selective broadcast program, the weighting, etc. The types of condition information to be used can be modified in various ways without departing from the scope of the present invention.

[0068]

As described above in detail, according to the present invention,
A data broadcasting system, a data broadcasting method, a broadcasting station, and a broadcasting operation management device that can realize a broadcasting service according to a viewer's request, thereby improving the entertainment of the viewer and expanding the use of the broadcasting service. And a broadcast receiving device can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a data broadcasting system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a specific configuration of the broadcasting station shown in FIG.

3 is a block diagram showing a specific configuration of the broadcast receiver shown in FIG.

FIG. 4 is a flowchart shown to explain the processing operation of the broadcast receiver in the first embodiment.

FIG. 5 is a flowchart shown to explain the processing operation of the broadcast operations management center in the first embodiment.

FIG. 6 is a flowchart shown to explain the processing operation of the broadcast station in the first embodiment.

[Explanation of symbols]

111 ... Program acquisition request collection control unit, 112 ... Statistics processing unit, 113 ... Statistical data notification control unit, 114 ... Authentication data management unit, 115 ... Authentication request transmission unit, 116 ... Authentication processing unit, 121 ... Broadcast program transmission section, 122 ... Selective Broadcast Program Production Department, 123 ... Transmitter, 124 ... storage unit, 125 ... communication modem, 126 ... Selective broadcast program transmission unit, 127 ... Multiplexing unit, 131 ... antenna, 132 ... tuner, 133 ... CDM demodulation / FEC processing unit 134 ... Decoder section, 135 ... operation input section, 136 ... Download processing unit, 137 ... Online processing control unit 138 ... communication modem, BC: Broadcast Operation Management Center, BS ... Broadcasting station, NW ... network, PW ... dedicated network, RS1 to RSn ... Broadcast receiver,

Claims (13)

[Claims] 1. A broadcasting station that broadcasts a broadcasting signal including program data of a data broadcasting on a predetermined broadcasting network based on a predetermined broadcasting time, and a broadcasting signal broadcast by the broadcasting network. And a plurality of broadcast receiving devices for reproducing program data of the data broadcast, wherein the broadcast station defines at least a part of a plurality of channels of the broadcast network as a first channel group, and the first channel group Program data of the first data broadcast to be broadcast based on the broadcast time via at least one of a plurality of channels different from the first channel group as a second channel group, and the second channel group is Different from the program data of the first data broadcast, the program data of the second data broadcast is broadcast according to the request from the viewer, and A broadcast program data storage unit for storing a plurality of program data of the second data broadcast, and a program acquisition request including information indicating a request content regarding program data from each viewer of the plurality of broadcast receiving devices and parameter information about the viewer. Is notified, at least one program data is read out from a plurality of program data stored in the broadcast program data storage means in response to the program acquisition request, and is broadcast via the second channel group. A data broadcasting system comprising a program data transmitting means. 2. A broadcast operation management device further connected to the broadcast station via a communication network, wherein the broadcast operation management device obtains a program notified from each viewer of the plurality of broadcast receiving devices. A program acquisition request collecting means for collecting requests; and a collected information transmitting means for transmitting the collected information by the program acquisition request collecting means to the broadcasting station via the communication network. The means identifies the program data to be transmitted from among the plurality of program data stored in the broadcast program data storage means, based on the collected information received from the broadcast operation management apparatus. The described data broadcasting system. 3. A plurality of retransmitting devices for receiving the broadcast signal and retransmitting it to a specific area, further comprising: in response to a program acquisition request notified from a viewer of a receiving area of each of the plurality of retransmitting devices. 2. The data according to claim 1, wherein at least one program data is read from a plurality of program data stored in said broadcast program data storage means, is sent to a corresponding retransmitting device, and is multiplexed from the retransmitting device. Broadcast system. 4. A broadcasting station that broadcasts a broadcast signal including program data of a data broadcast on a predetermined broadcast network based on a predetermined broadcast time, and a broadcast signal broadcast by the broadcast network. A data broadcasting method used in a data broadcasting system comprising: a plurality of broadcast receiving devices for receiving the program data of a data broadcast and reproducing at least a part of a plurality of channels of the broadcasting network in the broadcasting station. This is the first channel group
Program data of a first data broadcast to be broadcast based on the broadcast time is broadcast via a channel group, and at least a part of a plurality of channels different from the first channel group is a second channel group. Different from the program data of the first data broadcast via the group, a storage unit for broadcasting the program data of the second data broadcast requested by the viewer, and storing a plurality of program data of the second data broadcast. When the viewers of the plurality of broadcast receiving devices are notified of the program acquisition request including the information indicating the desired content regarding the program data of the data broadcast and the parameter information about the viewers, the program acquisition request According to the above, at least one program data is read out from the plurality of program data stored in the broadcast program data storage means, and the second channel group is read. Data broadcasting wherein the broadcast through. 5. When the data broadcasting system further comprises a broadcast operation management device connected to a broadcast station via a communication network, the broadcast operation management device is a viewer of each of the plurality of broadcast receiving devices. Collects the program acquisition request notified from, and transmits the collected information to the broadcast station via the communication network, and the broadcast station, based on the collected information coming from the broadcast operation management apparatus, the broadcast 5. The data broadcasting method according to claim 4, wherein the program data to be transmitted is specified from among the plurality of program data stored in the program data storage means. 6. In the case of further comprising a plurality of retransmission devices for receiving the broadcast signal and retransmitting it to a specific area, in response to a program acquisition request notified from a viewer of a reception area of each of the plurality of retransmission devices. 5. At least one program data is read from a plurality of program data stored in the broadcast program data storage means, sent to a corresponding retransmitting device, and multiplexed from the retransmitting device. Data broadcasting method. 7. A broadcast station that broadcasts a broadcast signal including program data of a data broadcast to a plurality of broadcast receiving devices via a predetermined broadcast network having a plurality of channels based on a predetermined broadcast time. Then, at least a part of a plurality of channels of the broadcast network is set as a first channel group, and program data of a first data broadcast to be broadcast based on the broadcast time is broadcast via the first channel group, At least a part of a plurality of channels different from the channel group is set as a second channel group, and unlike the program data of the first data broadcast through this second channel group, the program data of the second data broadcast is requested by the viewer. And a broadcast program data storage unit for storing a plurality of program data of the second data broadcast, and each viewer of the plurality of broadcast receiving devices. When the program acquisition request including the information indicating the desired content regarding the program data of the second data broadcast and the parameter information about the viewer is notified from the plurality of programs stored in the broadcast program data storage means in response to the program acquisition request. A broadcast program data transmitting means for reading out at least one program data from the program data and broadcasting it through the second channel group. 8. A broadcast operation management device connectable to the broadcast station of claim 7 via a communication network, and collects a program acquisition request notified from each viewer of the plurality of broadcast receiving devices. A program acquisition request collecting means; and collected information transmitting means for transmitting the collected information by the program acquisition request collecting means to the broadcasting station via the communication network, based on the collected information received by the broadcasting station. The broadcast operation management apparatus is characterized in that the broadcast program data to be transmitted is specified from the plurality of second broadcast program data stored in the broadcast program data storage means. 9. The collected information transmitting means weights the collected information of the program acquisition request with predetermined condition information and transmits the weighted collected information to the broadcasting station, and the broadcasting station carries out predetermined weighting of the collected information. 9. The broadcast operation management device according to claim 8, wherein the program data to be transmitted is specified from a plurality of program data stored in the broadcast program data storage means based on the condition information. 10. The collection information transmitting means, as the predetermined condition information, member information indicating whether a member of a system registered in advance or a special member is registered in advance. Membership contract information indicating the date of membership contract, shopping usage information indicating the total purchase amount for online shopping during the unit period, communication usage information indicating the total amount of uplink communication charges used during the unit period, and system programs 10. The broadcast operation management apparatus according to claim 9, wherein at least one of viewing time information indicating a total viewing time of commercials and personal information of a viewer is used. 11. When the plurality of broadcast receiving devices can be connected via a communication network, the program acquisition request collecting means obtains a program arriving from each of the plurality of broadcast receiving devices via the communication network. 9. The broadcast operation management device according to claim 8, wherein the request is collected. 12. An authentication information storage unit for storing authentication information of each viewer, and a transmission request for authentication information to a plurality of broadcast receiving devices via a communication network prior to transmission of the program acquisition request. Authentication information transmission requesting means for performing, and when the authentication information comes from the broadcast receiving device in response to the transmission request, the authentication information is used as the corresponding authentication information stored in the authentication information storage means. Authentication information comparing and collating means for comparing and collating is further provided, and the collected information transmitting means determines whether or not the transmission of the program acquisition request can be permitted based on the comparison and collation result by the authentication information comparing and collating means. The broadcast operation management apparatus according to claim 11, wherein a program acquisition request is transmitted to the broadcast station only when it is determined that the program can be permitted. 13. A broadcast receiving apparatus connectable to the broadcast operation management apparatus according to claim 8 via a communication network, wherein: A broadcast receiving apparatus, comprising: a program acquisition request transmitting unit that transmits a program acquisition request including information indicating and parameter information about a viewer via the communication network.