JP5481285B2 - BROADCAST CONTENT DISTRIBUTION SYSTEM, DISTRIBUTION DEVICE AND BROADCAST RECEIVING TERMINAL DEVICE USED FOR THE SYSTEM - Google Patents

Description

  The present invention relates to a broadcast content distribution system that redistributes broadcast content to a digital broadcast broadcast receiving terminal device, and a distribution device and a broadcast receiving terminal device used in this system.

  In recent years, digitalization broadcast by radio waves has progressed, and it has become common to receive content based on video-related data at mobile reception terminals such as mobile terminals and mobile terminals. In addition, with the spread of broadband, IP (Internet Protocol) broadcasting and video on demand (hereinafter referred to as VOD) services using communication lines are becoming popular. On the other hand, a service for distributing TS packets used in conventional terrestrial digital broadcasting or the like using a communication line is also appearing.

  By the way, while watching a digital broadcast program on a mobile receiving terminal, there may be a case where the program being watched suddenly becomes unobservable due to moving to a place where radio waves do not reach or due to a situation such as battery exhaustion. is there. In response to such an interruption, conventionally, even if the state is restored to the viewable state, there is no way to re-view the program from the place where it was interrupted, and it was necessary to wait for a subsequent rebroadcast.

  In Patent Document 1, the mobile broadcast terminal retransmits the TS packet of the mobile broadcast received and demodulated by the digital broadcast receiver so that the user can view the digital broadcast program while moving indoors. A system for receiving this is disclosed. Further, in Patent Document 2, in a mobile phone terminal capable of receiving terrestrial digital broadcasting, when the reception area of the terrestrial digital broadcast changes due to movement and the program cannot be viewed, an electronic program guide is transmitted from the mobile phone base station. And a digital broadcast receiver that switches from this electronic program guide to a channel that provides the same broadcast program as the previous reception area. However, these documents do not disclose a technique related to re-viewing from a viewing interruption point.

JP 2006-165934 A JP-A-2005-026914

  As described above, in the past, there was no way to re-view the program from where it was interrupted in response to an interruption in which the program that was being viewed while watching a digital broadcast program suddenly disappeared. Had to wait for the rebroadcast.

  In order to solve the above-described problems, the present invention provides a broadcast content distribution system capable of re-viewing a digital broadcast program interrupted during viewing at least from the point of interruption, a distribution device used in the system, and a broadcast An object is to provide a receiving terminal device.

  In order to solve the above problem, a broadcast content distribution system according to the present invention acquires broadcast data, analyzes the broadcast content and the broadcast content from the broadcast data, and generates and stores management information managed at least by time information In addition, a distribution device that determines whether or not distribution is possible based on the content distribution request and condition information of the broadcast data and distributes the corresponding broadcast content to the request source when the condition is met, and broadcast of the broadcast data When interruption occurs in the middle of content viewing and the state becomes unviewable, information on the unviewable state is stored, and when there is a request for re-viewing of the suspended broadcast content, Connect and present the content distribution request and condition information, and receive broadcast content distributed from the distribution device when the condition is met Characterized by comprising a broadcast receiving terminal apparatus for presenting at least the point of interruption Te.

  That is, in the broadcast content distribution system configured as described above, broadcast data is acquired on the distribution device side, and broadcast content such as video-related data and management information for the content are generated and stored. When the broadcast receiving terminal device side becomes incapable of viewing the broadcast content and a re-viewing request is made, the distribution device distributes the stored broadcast content to the broadcast receiving terminal device on the condition that viewing is not possible. This allows the user to re-view the program even if the radio wave is interrupted while watching the program, or even if it is in a disadvantageous state where it cannot be viewed for some reason such as an unexpected visitor, improving convenience Can be planned.

  According to the present invention, there is provided a broadcast content distribution system capable of re-viewing a digital broadcast program interrupted during viewing at least from the interrupted position, a distribution device used in the system, and a broadcast receiving terminal device can do.

The block diagram which shows the structure of one Embodiment of the broadcast content delivery system which concerns on this invention. The flowchart which shows the flow of a process in the receiving terminal of the system shown in FIG.

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

  FIG. 1 is a block diagram showing an embodiment of a broadcast content distribution system according to the present invention. The system shown in FIG. 1 includes a broadcast content distribution apparatus 1 and a reception terminal 3 connected to the distribution apparatus 1 via a communication line 2.

  In the broadcast content distribution apparatus 1, the reception processing unit 11 receives and demodulates broadcast data transmitted by broadcast radio waves from the broadcast transmitting station T or broadcast data transmitted via a communication line, and receives broadcast TS (Transport Stream) packets. This broadcast TS packet is sent to the data generation processing unit 12.

  The data generation processing unit 12 adds a 4-byte time stamp (hereinafter referred to as TTS) corresponding to the reception time to the broadcast TS packet from the reception processing unit 11, and then a packet such as NULL that is unnecessary for the service. Are stored in the video-related data storage unit 13 as video-related data. The TSS is generated by a 27 MHz clock, and the added TS is referred to as a partial TS.

  In addition, the data generation processing unit 12 is a broadcast TS packet acquired from the reception processing unit 11, a broadcast TS packet to which a TTS is added, or a broadcast in which a TTS is added and NULL or the like unnecessary for the service is deleted. The TS packet is analyzed, time range information indicating the program name, outline, start time, and end time is acquired, and program range information indicating the start / end positions of data stored in the video-related data storage unit 13 is generated. And stored in the management information storage unit 14 in association with the video-related data.

  Here, when the program name, outline, and time range information are acquired, an EIT (Event Information Table) packet in the broadcast TS packet may be used. In addition, management information may be generated as necessary from information of NIT (Network ID Table), BIT (Broadcaster Information Table), and SDT (Service Description Table) in the broadcast TS packet.

  In the distribution apparatus 1, the service processing unit 15 receives an authentication request and a data request from the service cooperation unit 34 of the receiving terminal 3 via the communication line 2. When authentication as a service provision registration target is obtained, at least time information added to the data request becomes unreceivable, and based on this time information, the management information storage unit 14 It is determined whether or not viewing is disabled by comparing with the information stored in. If it is determined that the requested receiving terminal cannot be viewed, the receiving terminal 2 is notified that the receiving terminal 2 is viewable and the IP transmission related information is sent to the receiving terminal 3 and is sent to the IP transmission processing unit 16. Request to send video related data.

  Here, the receiving terminal 3 is notified that viewing is possible, and after receiving the viewing request from the receiving terminal 3, the IP transmission related information is sent to the receiving terminal 3, and the sending request is sent to the IP sending processing unit 16. You may go. In addition, IP transmission related information may be sent, and an IP transmission request from the receiving terminal 3 may be received separately.

  On the other hand, in the receiving terminal 3, the reception processing unit 31 receives and demodulates broadcast data transmitted from the broadcast transmitting station T by broadcast radio waves or broadcast data transmitted via a communication line to generate a broadcast TS packet. Not sent to the presentation unit. In this presentation unit, video-related data is extracted from the broadcast TS packet, decoded, and presented in the form of video / audio.

  The reception status of the reception processing unit 31 is monitored by the viewing impossible state detection processing unit 32. That is, this unviewable state detection processing unit 32 monitors the presence or absence of data reception in the reception processing unit 31, the time information when the data reception is impossible, the time information when the data reception is possible, and the viewing target. Data information is generated and stored in the unviewable state storage unit 33. Here, when generating the target data information, it is preferable to use NIT, BIT, SDT, EIT packet, etc. in the broadcast TS packet. In this case, the viewing impossible state means that the user suddenly becomes unable to view and the reception is interrupted in addition to the case where the broadcast data cannot actually be received or an error occurs in the broadcast data. Cases are also included.

  After the interruption due to the inability to view, when there is a user's request for re-viewing, the service cooperation unit 34 receives the viewing request, acquires the target data information from the unviewable state storage unit 33, displays the list, The target video related data is specified by selecting viewing or by viewing selection according to a time zone or the like, and a viewing request is made to the service processing unit 15 of the distribution apparatus 1 via the communication line 2. At this time, the data unreceivable time information, the data receivable time information, and the data information to be viewed, which are stored in the unviewable state storage unit 33, are sent to the distribution apparatus 1. Alternatively, time information or the like when viewing is disabled may be sent to the distribution apparatus 1 to acquire and select program data to be viewed.

  When an IP packet is transmitted from the IP transmission processing unit 16 of the distribution device 1 via the communication network 2 in response to the viewing request of the service cooperation unit 34, the reception device 3 causes the distribution device to execute the IP packet processing unit 35. Video-related data transmitted from 1 through the communication line 2 is received, data restoration such as IP packet order correction and packet loss correction is performed, and TTS-attached TS packet data is generated.

  The TS packet processor with TTS 36 acquires TS packet data with TTS from the IP packet processor 35, and reproduces the TS packet based on the information of the TTS. The presentation processing unit 37 acquires the TS packet from the TS packet processing unit with TTS 35 and issues it to a presentation device (not shown) such as a display. At this time, if the video data is encrypted, a decryption process is performed. If the target video data is encrypted and the key information for decrypting the encrypted video data is included in the IP transmission related information acquired by the service cooperation unit 34, this key information May be obtained and decoded.

  In the above configuration, a flow of a series of processes will be described below.

  First, when the broadcast data to be serviced is acquired, the distribution apparatus 1 creates video-related data and management information from the broadcast data and stores them in the respective storage units 13 and 14. When receiving the service provision request and the viewing-disabled state information from the receiving terminal 3, the management information storage unit 14 is referred to determine corresponding video-related data, the video-related data is read from the storage unit 13, and the IP The data is sent from the sending processing unit 16 to the receiving terminal 3 as the request source.

  On the other hand, the receiving process of the receiving terminal 3 is as shown in FIG. First, it is assumed that the broadcast program is received by the user-specified channel selection in the reception processing unit 31 (step S1). In this state, the unviewable state detection processing unit 32 monitors the occurrence of unviewable from the acquisition status of the received data (step S2). When viewing is disabled for some reason, information on the viewing disabled state is stored in the viewing disabled state storage unit 33 (step S3). When there is no cause of viewing interruption and there is a user's service provision request (step S4), connection to the distribution apparatus 1 (step S5) is notified of the content of the viewing disabled state (step S6), and the corresponding content Is received (step S7), and the interrupted broadcast content can be viewed again.

  That is, in the broadcast content distribution system configured as described above, TS packets used in broadcasting or the like are acquired, video-related data and management information associated with the video-related data are generated and stored, and video-related data is stored. Are received by a receiving terminal such as a portable terminal, and a distribution device 1 that distributes the stored video-related data using the communication line 2 and a receiving terminal 3 are provided. As a result, the user can re-view the program using the communication line 2 even when the radio wave is interrupted while watching the program, or when the user is in a disadvantageous state where the user cannot view the program for some reason such as an unexpected visitor. It is possible to improve convenience.

  Therefore, according to the broadcast content distribution system configured as described above, the receiving terminal side can receive broadcast content distribution corresponding to the situation at the time of interruption even when viewing is interrupted for some reason. And convenience can be improved.

  The present invention is not limited to the above-described embodiment as it is. For example, the present invention can be similarly applied to distribution of music-type data and character-type data in addition to broadcast data. The component can be modified and embodied. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1 ... Distribution apparatus, 11 ... Distribution apparatus reception process part, 12 ... Data generation process part, 13 ... Image | video related data storage part, 14 ... Management information storage part, 15 ... Service process part, 16 ... IP transmission process part, 2 ... Communication line, 3... Receiving terminal, 31... Receiving terminal reception processing unit, 32... Unviewable state detection processing unit, 33... Unviewable state accumulating unit, 34 ... service cooperation unit, 35 ... IP packet processing unit, 36. TS packet processing unit, 37... Presentation control unit.

Claims (6)

A broadcast receiving terminal apparatus for presenting removed broadcast content specified by the user program from being the broadcast data receives broadcast data,
The broadcast data is acquired, broadcast contents in units of programs are extracted from the broadcast data, accumulated, a broadcast content distribution request for any program in the broadcast data is received, and at least viewed during the broadcast of the requested program A distribution device that distributes broadcast content of a program requested to be distributed to a request source on the condition that viewing-and-listening information indicating that the distribution is disabled is presented;
When the broadcast receiving terminal device detects that the broadcast content has become unviewable during presentation of the broadcast content, the broadcast receiving terminal device accumulates unviewable information indicating that the broadcast content of the program has become unviewable. Further, when an instruction to re-view the broadcast content of the program that has become unviewable is input, the broadcast device of the instructed program is requested to be distributed by connecting to the distribution device, and the unviewable information is received. A broadcast content distribution system for presenting and receiving broadcast content of a program distributed from the distribution device and presenting it in accordance with the re-viewing instruction input. The delivery apparatus, when the information on each program unit of broadcast content managed on the basis of the program range information including the broadcast time information of the program, time information becomes watchable as the unviewable information is presented, 2. The program range information of the distribution request program and the time information when the viewing is disabled are compared and checked to determine whether or not the distribution request program is a program that cannot be listened to. The broadcast content distribution system described. A distribution device used in a broadcast content distribution system for receiving broadcast data and providing broadcast content in units of programs in the broadcast data to a broadcast receiving terminal device that extracts and presents broadcast content of a user-specified program from the broadcast data Because
Obtaining means for obtaining the broadcast data;
Storage means for extracting and storing broadcast content in units of programs from the broadcast data;
Receiving means for receiving a broadcast content distribution request for an arbitrary program in the broadcast data transmitted from the broadcast receiving terminal device ;
Determining means for determining whether or not distribution is possible based on unviewable information that is presented together with the distribution request from the broadcast receiving terminal device and indicates that viewing is disabled during at least broadcasting of the program requested to be distributed;
A distribution apparatus for a broadcast content distribution system, comprising: distribution means for distributing broadcast content of a corresponding program to a request source when the determination means determines that distribution is possible. Said storage means, with each of the broadcast content of the program units managed based on the program range information including the broadcast time information of the program,
The determination means compares the program range information of the distribution request program with the time information that cannot be viewed when the time information that cannot be viewed is presented as the non-viewable information. 4. The distribution apparatus for a broadcast content distribution system according to claim 3, wherein it is determined whether or not the requested program is a program that cannot be auditioned. Broadcast data is acquired, broadcast contents in units of programs are extracted from the broadcast data, stored, distribution request for broadcast contents of any program in the broadcast data is received, and at least during the broadcast of the requested program on condition that unviewable information indicating that it is now impossible is presented, it is used in the broadcast content distribution system comprising a distribution device for distributing the broadcast content delivery requested program to the requesting met broadcast receiving terminal apparatus And
Receiving means for receiving the broadcast data;
Presenting means for extracting and presenting broadcast content of a user-specified program from the received broadcast data;
Detecting means for detecting that the broadcast content becomes unviewable during the presentation of the broadcast content;
A storage means for storing non-viewable information indicating a non-viewable state when the non-viewable is detected;
Request means for requesting distribution of the broadcast content of the designated program by connecting to the distribution device when an instruction to re-view the broadcast content of the broadcast-disabled program is input;
Broadcast receiving of a broadcast content distribution system comprising: presentation means for receiving broadcast content of a designated program distributed from the distribution device in response to the distribution request and presenting the broadcast content in accordance with the re-viewing instruction input Terminal device. The distribution apparatus, when managing on the basis of the program range information including the broadcast time information of the program information on each broadcast content of the program unit, presents time information becomes watchable as the unviewable information, the The distribution device side compares the program range information of the distribution request program with the time information when viewing is disabled, and determines whether or not the distribution request program is a program that cannot be auditioned. The broadcast receiving terminal device of the broadcast content distribution system according to claim 5.

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