JP4183528B2 - Broadcast receiver, broadcast retransmission system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a release transceiver and broadcast retransmission system, specifically, receiving and accumulating the digital broadcasting by satellite, terrestrial, etc., relating to channel selection and reservation upon retransmitting the broadcasting thereof accumulate.
[0002]
[Prior art]
As a method for temporarily receiving a digital broadcast (data broadcast) such as a BS (Broadcasting Satellite) digital broadcast or a CS (Communication Satellite) digital broadcast and retransmitting it to the cable television, “1-4 CS retransmission” of Non-Patent Document 1. There is a method called re-multiplexing SI conversion. This method changes the program organization and changes the information such as program organization information called PSI / SI (Program Specific Information / Service Information) by the retransmission device and retransmits it. (See Patent Document 1 and Patent Document 2).
[0003]
[Patent Document 1]
JP 2000-350180 A [Patent Document 2]
JP 2002-320213 A [Non-patent Document 1]
Edited by the Japan CATV Technology Association, edited by the Japan Electromechanical Manufacturers Association, "A commentary for introducing a CATV system so digital CATV",
(Japan) CATV Technology Association, (Japan) Electronic Machinery Manufacturers Association, May 1999
May 20, p.9 “1-4 CS retransmission”
[0004]
[Problems to be solved by the invention]
When re-transmission is performed by the above-described remax system, since the program organization is changed from the original broadcast, it is not possible to select a channel with the same channel number as the original broadcast. For this reason, for example, when a user who has been receiving CS digital broadcasts attempts to receive by re-transmission by the remax method, there is a problem that the channel number is changed and confused.
[0005]
In addition, for other programs referred to in the content, the channel number is changed by re-transmission, and the program cannot be referred to.
[0006]
The present invention was made in view of the circumstances described above, provided in the storage-type digital broadcasting, the release transceiver and broadcast retransmission system that enable and channel selection, reservation in the same way as the original broadcast The purpose is to do.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problem, the broadcast retransmission apparatus according to the present invention retransmits the program identification information used in the original program organization information before retransmission at the time of retransmission.
In the broadcast receiving apparatus, a program guide based on the original program organization is generated using the original program identification information before re-transmission transmitted by the broadcast re-transmitter, and program selection and reservation are performed based on the program guide. Do.
The broadcast retransmission system includes this broadcast retransmission apparatus and a plurality of broadcast reception apparatuses.
[0008]
With the above configuration, it is possible to receive with the original channel number before retransmission, and the user who is used to the conventional method is not confused.
In addition, since it is possible to use the program table for each original broadcast before retransmission, it is possible to select a channel by the channel number for each original broadcast before retransmission and reserve viewing and recording. Become.
In addition, other programs referred to by the digital broadcast can be referred to without changing the content of the digital broadcast content.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration example of a broadcast retransmission system according to an embodiment of the present invention. In FIG. 1, the broadcast retransmission system includes a broadcast retransmission apparatus 108 and a plurality of broadcast reception apparatuses 107 for viewing broadcasts.
[0010]
The broadcast retransmitting device 108 acquires the broadcast receiving devices 101 to 102 for receiving the original broadcast to be retransmitted, the independent broadcast device 103 that generates the independent broadcast created by the cable television station, the program identification information of the original broadcast, The original program identification information extracting device 104 that extracts only the program identification information relating to the program to be retransmitted from the information, generates program organization information of the program newly organized for retransmission credit, and the program identification information and the original The program organization information generating device 105 for inserting the correspondence information of the original program identification information extracted from the program identification information extracting device 104 into the program organization information and transmitting it, and the program organization information from the program organization information generating device 105 and the devices 101 to 103 The re-multiplexer 106 re-multiplexes and transmits the received and generated broadcast.
In the description of the present embodiment, two broadcast receiving apparatuses are used, but the present invention can be similarly applied to a case where two or more broadcast receiving apparatuses are provided.
[0011]
(A) Broadcast retransmission apparatus 108
Next, the broadcast retransmission apparatus 108 will be described.
FIG. 2 is a diagram showing a change related to a channel among changes in program organization by the broadcast retransmitting apparatus 108 in FIG. In the following, the program organization will be described by limiting to the channel, but it can be realized in the same manner including individual programs.
[0012]
In FIG. 2, 201 to 202 indicate the program organization of the original broadcast, 203 indicates the program organization of the independent broadcasting of the cable television station, and 204 indicates the program organization of the retransmission. For example, it is assumed that the channel A1 of the broadcast A is broadcast as a retransmission broadcast channel D1 at the time of retransmission.
[0013]
FIG. 3 is a flowchart showing a process of generating program scheduling information of each program of the program scheduling information generating apparatus 105 in FIG.
First, program organization information is generated (step S301).
Next, it is determined whether or not the program is a retransmitted program (step S302).
In the case of a program that is not retransmitted such as an independent broadcast of a cable television broadcasting station (NO in step S302), the program organization information is transmitted to the remultiplexing device (step S303), and the process ends.
[0014]
On the other hand, in the case of a retransmitted program (YES in step S302), the original program identification information of the program is taken to generate correspondence information between the current program identification information and the original program identification information (step S304), and the program organization information is remultiplexed. The data is transmitted to the apparatus (step S303), and the process ends.
[0015]
By the above processing (FIG. 3), the correspondence information of the program identification information related to the channel in retransmission is created as shown in FIG. 4 from FIG. 2 in which the broadcast and channel number are expressed as identification information.
[0016]
Incidentally, in digital broadcasting of ARIB (Association of Radio Industries and Businesses), correspondence information can be created in the same manner by using identification information such as network_id and service_id. That is, in the provision of ARIB digital broadcasting, broadcasting corresponds to a network, and in “9.1 Network Configuration” of ARIB TR-B15, “the network is prescribed for one distribution system by ARIB STD-B10”. In BS digital broadcasting, for example, a network is defined for digital broadcasting by a BS-4 subsequent machine. It is identified by the network_id to be given. "
[0017]
A channel corresponds to a service, and ARIB TR-B15 “8.1 Definition of Service and Service Type” states that “a service is a so-called organized channel, and“ a schedule broadcast organized by a consigned broadcaster ”. It is defined as “a series of programs that can be broadcast as a part” (quoted from ARIB B10 section 3.1). It is assumed that the service is defined when service_id is described in the NIT service list descriptor. The service is identified by service_id.
[0018]
FIG. 5 is an example of a descriptor used when service-related information is sent by ARIB digital broadcasting.
In FIG. 5, descriptor_tag is a field indicating that this descriptor is a correspondence information descriptor. descriptor_length is a field indicating the descriptor length of this descriptor. service_id is a field indicating the currently transmitted service identifier. original_service_id is a field indicating an original service identifier corresponding to service_id.
[0019]
When a service is used as original program identification information in ARIB digital broadcasting, the descriptor is set in ARIB TR-B15 “31.1.3.NIT second loop (TS loop) The present invention can be realized by inserting the NIT second loop in the same manner as the descriptor described in “Descriptors to be inserted in ()”.
[0020]
(B) Broadcast receiving apparatus 107
Next, the broadcast receiving apparatus 107 will be described.
FIG. 6 is a block diagram showing a functional configuration of the broadcast receiving apparatus 107. In FIG. 6, the broadcast receiving apparatus 107 receives a signal from the broadcast retransmitting apparatus 108, and multiplexes programs, program organization information, and the like. Receiving means 601, channel selection means 602 for selecting a program of requested program identification information, input / output means 603 for receiving input from the user and presenting information to the user, designated program A program list table determining unit 604 that determines whether a program having identification information is in the program list 606, a program list generating unit 605 that generates a program list that is being received, and a program generated by the program list generating unit 605 List 606, correspondence information list generation means 607 for generating a list of correspondence information between original program identification information and current program identification information, correspondence information list generation means 607 Reservation means 609 and reservation means 609 for managing the reservation list 610 to be selected by the channel selection means 602 according to the generated correspondence information list 608 of the original program identification information and current program identification information and the reservation list 610 to be viewed or recorded. The reservation list 610 is managed by.
[0021]
FIG. 7 is a flowchart showing the program channel selection processing of the channel selection means 602.
First, it is determined whether the program identification information requested to be selected is the identification information of the original program or the current program identification information after retransmission (step S701). This determination can be made by searching the program list 606. That is, if it exists in the program list 606, the input program identification information is determined as the current program identification information after retransmission, and if it does not exist, it is determined as the original program identification information. Note that there is no overlap between the original program identification information and the current program identification information.
[0022]
If the channel selection is based on the identification information of the original program (YES in step S701), the correspondence information list 608 between the original program identification information and the current program identification information is searched, and if not found in the correspondence information list 608 (NO in step S702). ), Error processing is performed (step S705), and the process ends.
[0023]
On the other hand, if it is found in the correspondence information list 608 (YES in step S702), the current program identification information is acquired (step S703), the program is selected with the obtained current program identification information (step S704), and the process is terminated. .
[0024]
If the channel selection is not based on the identification information of the original program (NO in step S701), the input program identification information is assumed to be the current program identification information after retransmission, and the program is selected based on the input current program identification information. (Step S704) and the process ends.
[0025]
FIG. 8 is a diagram for explaining the procedure for generating the original broadcast program guide from the program guide of the program by re-transmission. In FIG. 8, 801 is a correspondence information list of program identification information, and 802 is a program information list by re-transmission. A program table 803 is a program table of a broadcast A that is an original broadcast, and 804 is a program table of a broadcast B that is an original broadcast.
[0026]
First, the correspondence information list 801 is searched for the channel D1 of the program guide 802, the original program identification information (broadcast A, channel A1) is acquired, and the channel of the program guide 802 is entered into the column of the A1 channel of the program guide 803 of the broadcast A. Copy the contents of column D1. Note that the memory consumption required for the program table can be reduced by setting a link without actually copying.
By performing the same processing for all channels of the program guide 802, the original broadcast program guides 803 and 804 are generated.
[0027]
FIG. 9 is a flowchart showing reservation list creation processing of the reservation means 609. Here, this process will be described after the reservation information (reservation start time, reservation end time, program identification information) is obtained from the input / output means 603.
[0028]
First, it is determined whether the program identification information requested to be reserved is the identification information of the original program or the current program identification information after retransmission (step S901). This determination can be made by searching the program list 606. That is, if it exists in the program list 606, the input program identification information is determined as current program identification information after re-transmission, and if it does not exist, it is determined as original program identification information.
[0029]
When the program identification information requested to be reserved is reservation based on the identification information of the original program (YES in step S901), the correspondence information list 608 of the original program identification information and the current program identification information is searched and found in the correspondence information list 608. If not (NO in step S902), an error process is performed (step S905), and the reservation list creation process is terminated.
[0030]
On the other hand, if it is found in the correspondence information list 608 (YES in step S902), the current program identification information is acquired, and the program identification information of the reservation information is replaced with the obtained current program identification information (step S903). The reservation information is added to the reservation list 610 (step S904), and the process ends.
[0031]
If the program identification information requested for reservation is not a reservation based on the identification information of the original program (NO in step S901), the input reservation information is added to the reservation list 610 (step S904), and the process ends.
[0032]
【The invention's effect】
As described above, according to the present invention, it is possible to select and reserve a channel with the same channel number as that in the case of directly receiving the original broadcast in the broadcast by the re-transmitted re-transmission. Users who are used to do not get confused.
In addition, other programs referred to by the digital broadcast can be referred to without changing the content of the digital broadcast content.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a broadcast retransmission system according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining a change in program organization by the broadcast retransmission transmitting apparatus according to the embodiment of the present invention.
FIG. 3 is a flowchart showing processing for generating program scheduling information of each program according to the embodiment of the present invention.
FIG. 4 is an example showing correspondence information of program identification information in the embodiment of the present invention.
FIG. 5 is a data structure example of correspondence information between the original program and the current program to be inserted into the program organization information in the broadcast retransmission transmitting apparatus according to the embodiment of the present invention.
FIG. 6 is a block diagram showing a functional configuration of a broadcast receiving apparatus according to an embodiment of the present invention.
FIG. 7 is a flowchart showing channel selection processing in the embodiment of the present invention.
FIG. 8 is a diagram for explaining a method for creating an original broadcast program guide in the embodiment of the present invention;
FIG. 9 is a flowchart showing reservation list creation processing in the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 101,102 ... Broadcast receiving apparatus, 103 ... Independent broadcasting apparatus, 104 ... Original program identification information extracting apparatus, 105 ... Program organization information generating apparatus, 106 ... Remultiplexing apparatus, 107 ... Broadcast receiving apparatus, 108 ... Broadcast retransmitting apparatus , 601 ... receiving means, 602 ... channel selection means, 603 ... input / output means, 604 ... program list determination means, 605 ... program list generation means, 606 ... program list, 607 ... correspondence information list generation means, 608 ... correspondence information list 609 ... reservation means, 610 ... reservation list, 801 ... corresponding information list, 802,803 ... program guide.

Claims (4)

And the current program identification information at the time of retransmission, upon receiving the broadcast by inserting the original program identification information that is used retransmitted by retransmission before the original programming information, based on the program identification information and the current Corresponding information list generating means for taking out program identification information and generating a corresponding information list as corresponding information, program list generating means for generating a program list from program information being broadcast, and input of desired program identification information from a user The desired program identification information is obtained by the input means for receiving the program list table determining means for determining whether or not the program indicated by the desired program identification information is in the program list, and the program list table determining means. When it is determined that the program list is present, the program indicated by the desired program identification information is selected, and when it is determined that the desired program identification information is not included in the program list, Acquires the current program identification information corresponding to the original program identification information of the same the correspondence information list and Nozomu of program identification information, that and a channel selection means for selecting a program to be shown by the developing program identification information A broadcast receiving apparatus characterized by the above. 2. The broadcast receiving apparatus according to claim 1 , further comprising original program guide generating means for generating a program guide based on the original program organization from the correspondence information list and the program list . 3. The broadcast receiving apparatus according to claim 1 , wherein when the program list table determining unit determines that the program identification information to be reserved received by the input unit is in the program list, the program to be reserved When the program indicated by the identification information is reserved, and it is determined that the reservation target program identification information is not in the program list, it corresponds to the original program identification information in the correspondence information list that is the same as the reservation target program identification information. A broadcast receiving apparatus comprising: reservation means for acquiring current program identification information to be reserved and reserving a program indicated by the current program identification information . 4. The broadcast retransmitting apparatus for retransmitting by inserting the current program identification information at the time of retransmission and the original program identification information used in the original program organization information before the retransmission, and any one of claims 1 to 3. Broadcast re-transmission system configured by a broadcast receiving apparatus.

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