WO2012157741A1 - 放送機器 - Google Patents
放送機器 Download PDFInfo
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- WO2012157741A1 WO2012157741A1 PCT/JP2012/062766 JP2012062766W WO2012157741A1 WO 2012157741 A1 WO2012157741 A1 WO 2012157741A1 JP 2012062766 W JP2012062766 W JP 2012062766W WO 2012157741 A1 WO2012157741 A1 WO 2012157741A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/02—Arrangements for relaying broadcast information
- H04H20/06—Arrangements for relaying broadcast information among broadcast stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
- H04H20/103—Transmitter-side switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
- H04N21/2221—Secondary servers, e.g. proxy server, cable television Head-end being a cable television head-end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/812—Monomedia components thereof involving advertisement data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8545—Content authoring for generating interactive applications
Definitions
- the present invention relates to a broadcasting device having a function of transmitting (transmitting) broadcast waves.
- the broadcasting / communication cooperation service there is a service that transmits information on an application (application management information) linked to broadcast content in a broadcast wave and receives the cooperation application from a communication network based on the application management information. It is done.
- broadcasts are broadcast nationwide.
- the national relay most of the contents are created by the first transmitting station in Tokyo (hereinafter referred to as the “master station”), and the broadcasting stations of the local cities affiliated via the relay line (hereinafter referred to as subordinates). To the station).
- the local station broadcasts the content transmitted from the parent station as it is, but there are cases where the broadcasting is partially performed by replacing the content of the parent station with the content created by the lower station.
- a subordinate station a broadcast station in the Kansai region
- a weather forecast included in a nationally broadcast news program is changed from a weather forecast content transmitted from the master station (for example, a weather forecast in the Kanto region) to a subordinate station.
- the content is replaced with content (for example, a weather forecast in the Kansai region).
- the application management information may need to be changed even if the broadcast content is not replaced. is there.
- an object of the present invention is to provide a broadcast device that can replace application management information linked to broadcast content in a lower station as required.
- the broadcasting device includes a receiving unit that receives a broadcast signal distributed from another broadcasting station, a separation processing unit that separates the broadcast signal received by the receiving unit into content such as video and control information, Content processing means for processing the content such as the video separated by the separation processing means, deletion means for deleting the application management information included in the control information separated by the separation processing means, video and the like Based on information indicating the content such as video included in the control information, the storage management unit stores management information of the cooperative application linked to the content, and the application management information linked to the video content is The application management information is deleted by the reading means read from the storage unit and the deleting means.
- the adding means for adding the application management information read by the reading means, the control information to which the application management information is newly added by the adding means, and after being processed by the content processing means And a transmission processing unit for transmitting the signal multiplexed by the multiplexing processing unit as a broadcast signal.
- the broadcast device replaces the application management information included in the control information of the broadcast signal received by the receiving unit with the application management information stored in the storage unit.
- the application management information stored in the storage unit.
- the broadcasting device includes determination control means for determining whether or not the application management information needs to be replaced, and the storage unit cooperates with the content identification information for uniquely specifying the content such as video and the content such as video. And having a relation table associated with application management information, wherein the determination control means refers to the relation table and relates to the video content in the storage unit based on content identification information of the video content.
- the deletion unit and the reading unit may be controlled to perform replacement processing of application management information.
- the broadcasting device refers to the related table, and the application management information included in the control information of the broadcast signal received by the receiving unit is stored in the storage unit under a certain condition. Can be replaced with existing application management information.
- the application management information may include information on a location where the cooperative application is located.
- the broadcast device replaces the application management information included in the control information of the broadcast signal received by the receiving unit with the application management information stored in the storage unit.
- the server that downloads the cooperative application can be made different, and the processing load on the server can be reduced.
- the content processing means replaces the advertising content included in the content such as video with another advertising content
- the reading means stores application management information corresponding to the advertising content replaced by the content processing means. It may be configured to read from the storage unit.
- the broadcast device also replaces application management information in accordance with replacement of advertisement content. Therefore, for example, there is an advantage that mismatching does not occur between advertisement content and application management information in a subordinate station. .
- application management information linked to broadcast content can be replaced as necessary.
- FIG. 1 is an overall configuration diagram of a broadcasting / communication cooperation system. It is a figure which shows the stack
- FIG. 1 is an overall configuration diagram of a broadcasting / communication cooperation system 10.
- the broadcasting / communication cooperation system 10 includes a broadcasting station 1, a broadcasting antenna 2, a service server 3 (distribution server), and a receiver 4.
- the receiver 4 uses a broadcasting service provided from the broadcasting station 1 by an ISDB (Integrated Services Digital Broadcasting) system and a communication network N configured by the Internet or the like.
- the communication service provided from the service server 3 is linked to provide the user of the receiver 4 as a broadcasting / communication cooperation service.
- ISDB Integrated Services Digital Broadcasting
- the broadcast station 1 includes a general digital broadcast broadcasting facility (not shown) including a program organization facility, a program transmission facility, and a transmission facility.
- the broadcasting station 1 produces contents, event information (Event Information Table: EIT), application management information (Application Information Table: AIT), and the like, using broadcasting equipment. Then, the broadcasting station 1 multiplexes these contents, event information, AIT, and the like into a broadcast signal by using broadcasting equipment.
- the broadcast station 1 modulates the broadcast signal into a broadcast wave by the broadcast facility, and broadcasts the broadcast wave via the broadcast antenna 2.
- the content included in the broadcast wave broadcast from the broadcast station 1 includes program content that is broadcast according to the broadcast schedule and includes video and audio, and earthquake early warnings that occur asynchronously with the program content. This includes emergency content that is content.
- the event information includes meta information related to the content such as the name of the program content, the broadcast date and time of the program content, and the description of the program content.
- the event information is referred to as EIT.
- the AIT is management information for managing one or a plurality of application programs (hereinafter referred to as applications) that can provide the receiver 4 with content linked to program content.
- the AIT includes one or more pieces of individual management information corresponding to one or more applications and managing each of the one or more applications.
- the individual management information includes an application ID for identifying the application, life cycle control information for controlling the life cycle of the application, and location information indicating the location of the application (see FIG. 4).
- the content provided by the application includes content linked to the program content and content not linked to the program content.
- content provided by an application is referred to as application content.
- the broadcast signal is the same as the broadcast signal of the conventional digital broadcast, and is defined by ARIB (registered trademark) (Association of Radio Industries and Broadcast) standard.
- FIG. 2 is a diagram illustrating a stack of broadcast signal transmission protocols related to digital broadcasting. As shown in FIG. 2, various data such as video and audio provided by digital broadcasting are stored in TS packets (transport stream packets) defined by the international standard MPEG-2 Systems and multiplexed in a time division manner. Is transmitted.
- TS packets transport stream packets
- PSI Program Specific Information
- SI Service Information
- Data transmission using TS packets is classified into a method of transmitting data using sections and a method of transmitting data using PES (Packetized Elementary Stream) packets (data stream transmission method).
- PES Packetized Elementary Stream
- the data carousel transmission method is a transmission method in which one or a plurality of data is repeatedly transmitted at a constant period, and each piece of data (module) transmitted by this transmission method has identification information for identifying individual data. It is attached.
- the data carousel transmission system is used for the purpose of causing the receiver 4 to acquire individual data at an arbitrary timing.
- the event message transmission method is a method for sending a trigger signal from the broadcasting station 1 to the receiver 4.
- the event message transmission method is used when a message with a small amount of data is transmitted from the broadcasting station 1 to the receiver 4.
- the data stream transmission method is a transmission method in which data to be transmitted is accommodated in a PES packet and transmitted as a stream.
- the data stream transmission method is used for transmitting real-time data such as video, audio, and caption data, and data that needs to be synchronized with other streams.
- AIT can be transmitted by various methods using TS packets. That is, the AIT can be transmitted by describing the EIT included in the SI of the TS packet.
- AIT can be transmitted by a data carousel transmission system using sections.
- identification information is attached to the module so that the receiver 4 can recognize the AIT.
- AIT can be transmitted as PES multiplexed with content video and audio.
- the AIT can be described in binary representation or text representation by XML (Extensible Markup Language) and stored in the TS packet.
- the AIT transmission method is defined in advance in at least one of the above transmission methods.
- Multimedia coding (BML: Broadcast Markup Language) is based on xHTML defined by W3C (Registered Trademark) (World Wide Web Consortium), and ECMAScript based on JavaScript is used as a procedural language. It is a standard defined in consideration of consistency with international standards.
- the service server 3 is a content distribution server that distributes program content and content (application content) distributed to applications, and an application distribution server that distributes various applications that operate on the receiver 4. With.
- the service server 3 is communicably connected to the equipment of the broadcast station 1 and receives program content and program content metadata from the broadcast station 1.
- the service server 3 transmits the program content to the receiver 4 in response to receiving the program content acquisition request from the receiver 4.
- the service server 3 transmits an application to the receiver 4 in response to receiving an application acquisition request from the receiver 4. Furthermore, the service server 3 transmits video data, audio data, and the like of application content to the receiver 4 when an application is being executed in the receiver 4.
- the service server 3 multiplexes the AIT with the program content and transmits it to the receiver 4. Further, the service server 3 transmits an AIT to the receiver 4 in response to receiving an AIT acquisition request from the receiver 4.
- the receiver 4 synchronizes and outputs the video data and audio data of the program content by performing predetermined processing on the program content received from the broadcast station 1 or through communication with the service server 3. .
- the receiver 4 acquires an application based on the AIT, and executes the acquired application. Subsequently, the receiver 4 acquires the video data and audio data of the application content from the service server 3 by the application being executed, and outputs the video data and audio data of the program content in cooperation with each other.
- functions of the receiver 4 will be described in detail.
- FIG. 3 is a block diagram illustrating a functional configuration of the receiver 4.
- the receiver 4 includes a broadcast wave reception unit 11, a first separation unit 12, a broadcast AIT acquisition unit 13, a communication unit 14, a second separation unit 15, a communication AIT acquisition unit 16, and an application execution control unit 17.
- the broadcast wave receiving unit 11 receives a broadcast wave broadcast from the broadcast station 1 via the broadcast antenna 2.
- the first separation unit 12 demodulates the broadcast wave received by the broadcast wave reception unit 11, and extracts a broadcast signal, that is, a TS packet, from the broadcast wave. Then, the first separation unit 12 refers to the PSI / SI of the TS packet, determines the type of data included in the TS packet, and extracts various data such as video, audio, and EIT. In addition, the first separation unit 12 extracts the AIT by referring to the section and the PES according to a predetermined AIT transmission method.
- the first separation unit 12 outputs the audio data to the audio control unit 18.
- the first separation unit 12 outputs the video data to the display control unit 19.
- the first separation unit 12 stores the extracted EIT and other various data in the memory 22. Further, when the first separation unit 12 extracts the AIT, the first separation unit 12 outputs the extracted AIT to the broadcast AIT acquisition unit 13.
- the broadcast AIT acquisition unit 13 acquires the AIT output from the first separation unit 12 and stores it in the AIT storage unit 23.
- the communication unit 14 is a communication interface that transmits and receives data to and from the service server 3 via the communication network N.
- the second separation unit 15 determines the type of data received by the communication unit 14. When the second separation unit 15 determines that the received data is an AIT, the second separation unit 15 outputs the AIT to the communication AIT acquisition unit 16. When the second separation unit 15 determines that the received data is an application, the second separation unit 15 outputs the application to the application execution control unit 17.
- the second separator 15 determines that the received data is a TS packet
- the second separator 15 extracts various data such as video, audio, and AIT from the TS packet.
- the second separation unit 15 outputs this AIT to the communication AIT acquisition unit 16 when the AIT is extracted, and outputs this data to the application execution control unit 17 when data other than the AIT is extracted.
- the communication AIT acquisition unit 16 acquires the AIT output from the second separation unit 15 and stores it in the AIT storage unit 23.
- the application execution control unit 17 acquires an application based on a user's execution instruction via the AIT or the remote controller R, and controls the execution of the acquired application. Then, the application execution control unit 17 outputs the audio data of the application content acquired from the service server 3 by executing the application to the audio control unit 18, and the video data of the application content acquired from the service server 3. The data is output to the display control unit 19.
- FIG. 4 is a diagram illustrating an example of the AIT described in the XML format.
- the AIT includes one or more pieces of individual management information corresponding to one or more applications and managing each of the one or more applications.
- the codes described from the ⁇ mhp: Application> tag to the ⁇ / mhp: Application> tag shown in FIG. 4 correspond to the individual management information related to one application.
- a plurality of pieces of individual management information can be described by newly describing individual management information of other applications after the ⁇ / mhp: Application> tag.
- the code corresponding to the ⁇ mhp: appId> tag indicates the application ID (identification information).
- a code corresponding to the ⁇ mhp: location> tag indicates location information indicating the location of the application.
- the location information describes the address of the service server 3 as the location of the application.
- an address of a storage unit (not shown) provided in the receiver 4 can be designated as the location of the application.
- the application execution control unit 17 monitors the AIT storage unit 23 and refers to control information related to the life cycle described in the AIT when a new AIT is stored. Then, when the control information related to the life cycle indicates “automatic execution”, the application execution control unit 17 uses the location information described in the AIT as an application acquisition destination, and the communication unit 14 and the second separation unit. The application is acquired from the service server 3 via 15 and the acquired application is executed. In this case, the application is automatically executed without receiving an explicit operation instruction from the user of the receiver 4.
- the application execution control unit 17 receives an application execution instruction from the user of the receiver 4 via the remote controller R.
- the remote control R is provided with a Hybridcast (registered trademark) button, and the application execution control unit 17 accepts selection of an application to be executed when the user of the receiver 4 presses the Hybridcast button. An instruction to execute a menu screen is received.
- the application execution control unit 17 refers to the AIT storage unit 23 in response to receiving the menu screen execution instruction, and identifies the AIT of the executable application. Then, the application execution control unit 17 outputs video data constituting a menu screen from which an application corresponding to the identified AIT can be selected to the display control unit 19 and causes the display 21 to display this menu screen.
- the application execution control unit 17 refers to the location information of the application described in the AIT, acquires the application, Execute.
- the method for displaying the menu screen is not limited to the use of the remote controller R, and may be performed by other means.
- the application causes the application execution control unit 17 to acquire the video data and audio data of the application content from the service server 3. Then, the application execution control unit 17 outputs the audio data of the application content acquired by the application to the audio control unit 18 and outputs the video data of the application content acquired by the application to the display control unit 19.
- the application is an application that provides application content linked to the program content
- the video data and audio data of the application content are displayed on the display 21 in conjunction with the video data and audio data of the program content. .
- the application execution control unit 17 monitors the AIT storage unit 23, and when the AIT describing the individual management information corresponding to the application being executed is newly stored in the AIT storage unit 23, it is included in the individual management information.
- the running application is controlled based on the life cycle control information. For example, when the life cycle control information of the application indicates “end”, the application is ended.
- the audio control unit 18 outputs the audio data output from the first separation unit 12 to the speaker 20 while synchronizing with the video data whose display is controlled by the display control unit 19. Further, when the audio data output from the application execution control unit 17 can be synchronized with the video data whose display is controlled by the display control unit 19, the audio control unit 18 transmits the audio data to the speaker while synchronizing with the video data. 20 is output.
- the display control unit 19 displays the video data output from the first separation unit 12 on the display 21 in synchronization with the audio data output-controlled by the audio control unit 18.
- the display control unit 19 displays the video data while synchronizing with the audio data. 21 is displayed.
- the memory 22 stores metadata of program contents such as EIT and other various information.
- the AIT storage unit 23 stores the AIT acquired by the broadcast AIT acquisition unit 13 and the communication AIT acquisition unit 16.
- the broadcasting device 100 includes a receiving unit 101 (receiving unit), a separation processing unit 102 (separation processing unit), a content processing unit 103 (content processing unit), and a deletion unit 104 (deleting unit).
- the receiving unit 101 receives broadcast signals distributed from other broadcast stations (for example, the broadcast station 1 which is a master station).
- the separation processing unit 102 separates the broadcast signal received by the receiving unit 101 into content such as video (hereinafter referred to as program content) and control information.
- the control information is a concept including metadata and application management information (AIT).
- Metadata is information multiplexed on a broadcast signal, and is composed of a program title, a program ID, a program summary, performer information, broadcast date information, and the like.
- the content processing unit 103 processes the program content separated by the separation processing unit 102.
- the content processing unit 103 performs re-encoding processing after decoding the program content.
- the deletion unit 104 deletes the application management information (AIT) included in the control information separated by the separation processing unit 102.
- the storage unit 105 stores an AIT of an application linked to program content.
- the reading unit 106 reads from the storage unit 105 the AIT associated with the program content based on information (for example, a program ID) indicating the program content included in the control information.
- the adding unit 107 adds the AIT read by the reading unit 106 to the control information from which the AIT has been deleted by the deleting unit 104.
- the multiplexing processing unit 108 multiplexes the control information to which the AIT is newly added by the adding unit 107 and the program content processed by the content processing unit 103.
- the transmission unit 109 transmits the signal multiplexed by the multiplexing processing unit 108 as a broadcast signal.
- the broadcasting device 100 configured in this way cooperates with the other program content. Since it is replaced with the ATI of the application to be executed, there is a merit that no mismatching occurs between the program content and the AIT.
- the broadcast device 100 may further include a determination control unit 110 (determination control unit) that determines whether or not the application management information needs to be replaced.
- a determination control unit 110 determination control unit
- the storage unit 105 has a relation table in which content identification information for uniquely specifying content such as video and application management information linked to the content such as video are associated.
- the determination control unit 110 When the determination control unit 110 refers to the related table and confirms that the storage unit 105 has an AIT related to the content such as video based on the content identification information of the content such as video, the determination control unit 110 reads the deletion table 104. The unit 106 is controlled to perform AIT replacement processing.
- the broadcast device 100 does not perform the AIT replacement process and does not change the control information separated by the separation processing unit 102 if the storage unit 105 does not have the AIT necessary for replacement. Then, the data is directly supplied to the multiplexing processing unit 108 via the deleting unit 104 and the adding unit 107 and is multiplexed with the program content processed by the content processing unit 103 by the multiplexing processing unit 108. Therefore, the broadcasting device 100 can perform AIT replacement processing as necessary.
- the AIT includes location information indicating the location of the linked application (see FIG. 4).
- the broadcasting device 100 replaces the AIT included in the control information of the broadcast signal received by the receiving unit 101 with the AIT stored in the storage unit 105, so that the master station and the subordinate stations are based on the AIT.
- Different service servers can be accessed, and the processing load on the service server can be reduced.
- the content processing unit 103 replaces the advertising content included in the program content with another advertising content
- the reading unit 106 reads the cooperative application management information corresponding to the advertising content replaced by the content processing unit 103 from the storage unit 105. It may be a configuration.
- the advertising content is a concept that includes advertisements for programs (so-called “banban”) and CMs (commercials).
- the broadcasting device 100 has a function of changing the metadata as needed when the metadata needs to be changed along with the replacement of the advertising content.
- the broadcasting device 100 replaces the AIT in accordance with the replacement of the advertising content, for example, there is a merit that no mismatching occurs between the replaced advertising content and the AIT in the subordinate station.
- the configuration and operation of the broadcasting device are mainly described.
- the present invention is not limited to this, and includes a method for replacing application management information that includes each component and cooperates with broadcast content as necessary. It may be configured as a program.
- “computer system” includes an OS and hardware such as peripheral devices.
- the “computer-readable recording medium” refers to a storage device such as a flexible disk, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system.
- “computer-readable recording medium” means that a program is dynamically held for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It is also possible to include one that holds a program for a certain time, such as a volatile memory inside a computer system that becomes a server or client in that case. Further, the program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system. .
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
図1は、放送通信連携システム10の全体構成図である。放送通信連携システム10は、放送局1と、放送用アンテナ2と、サービスサーバ3(配信サーバ)と、受信機4とを含んで構成される。この放送通信連携システム10では、受信機4において、ISDB(Integrated Services Digital Broadcasting:統合デジタル放送サービス)方式によって放送局1から提供される放送サービスと、インターネット等により構成される通信ネットワークNを介してサービスサーバ3から提供される通信サービスとを連携し、放送通信連携サービスとして受信機4のユーザに提供する。
放送局1は、放送設備によって、コンテンツや、イベント情報(Event Information Table:EIT)や、アプリケーション管理情報(Application Information Table:AIT)等を制作する。そして、放送局1は、放送設備によって、これらコンテンツ、イベント情報及びAIT等を放送信号に多重化する。そして、放送局1は、放送設備によって、この放送信号を放送波に変調し、放送用アンテナ2を介して放送波を放送する。
AITは、番組コンテンツに連動するコンテンツを受信機4に提供可能なアプリケーションプログラム(以下、アプリケーションと記載する)を1又は複数管理するための管理情報である。AITには、1又は複数のアプリケーションそれぞれに対応し、1又は複数のアプリケーションそれぞれを管理するための個別管理情報が、1又は複数含まれる。個別管理情報には、アプリケーションを識別するアプリケーションIDや、アプリケーションのライフサイクルを制御するライフサイクル制御情報や、アプリケーションの所在を示すロケーション情報が含まれている(図4参照)。
すなわち、AITは、TSパケットのSIに含まれるEITに対して記述することによって伝送可能である。
本実施形態では、AITの伝送方法は、上記の伝送方法の少なくともいずれかに予め規定されているものとする。
サービスサーバ3は、受信機4から番組コンテンツの取得要求を受け付けたことに応じて、受信機4に対して番組コンテンツを送信する。
受信機4は、放送波受信部11と、第1分離部12と、放送AIT取得部13と、通信部14と、第2分離部15と、通信AIT取得部16と、アプリケーション実行制御部17と、音声制御部18と、表示制御部19と、スピーカ20と、ディスプレイ21と、メモリ22と、AIT記憶部23とを備える。
具体的には、図4に示される<mhp:Application>タグから</mhp:Application>タグまでに記述されているコードは、一のアプリケーションに関する個別管理情報に対応している。AITには、</mhp:Application>タグの後に、他のアプリケーションの個別管理情報を新たに記述することによって、複数の個別管理情報を記述することができる。
AIT記憶部23は、放送AIT取得部13及び通信AIT取得部16によって取得されたAITを記憶する。
読出部106は、制御情報に含まれている番組コンテンツを示す情報(例えば、番組ID)に基づいて、番組コンテンツに連携するAITを記憶部105から読み出す。
多重化処理部108は、付加部107によりAITが新たに付加された制御情報と、コンテンツ処理部103により処理された後の番組コンテンツを多重化処理する。
送信部109は、多重化処理部108により多重化処理された信号を放送信号として送信する。
したがって、放送機器100は、必要に応じてAITの差し替え処理を行うことができる。
2 放送用アンテナ
3 サービスサーバ
4 受信機
100 放送機器
101 受信部
102 分離処理部
103 コンテンツ処理部
104 削除部
105 記憶部
106 読出部
107 付加部
108 多重化処理部
109 送信部
110 判断制御部
Claims (4)
- 他の放送局から配信されてきた放送信号を受信する受信手段と、
前記受信手段により受信した放送信号を映像等コンテンツと制御情報に分離処理する分離処理手段と、
前記分離処理手段により分離処理された前記映像等コンテンツを処理するコンテンツ処理手段と、
前記分離処理手段により分離処理された前記制御情報に含まれているアプリケーション管理情報を削除する削除手段と、
映像等コンテンツに連携する連携アプリケーションの管理情報を記憶部に記憶する記憶手段と、
前記制御情報に含まれている前記映像等コンテンツを示す情報に基づいて、前記映像等コンテンツに連携するアプリケーション管理情報を前記記憶部から読み出す読出手段と、
前記削除手段によりアプリケーション管理情報が削除された前記制御情報に、前記読出手段により読み出されたアプリケーション管理情報を付加する付加手段と、
前記付加手段によりアプリケーション管理情報が新たに付加された制御情報と、前記コンテンツ処理手段により処理された後の映像等コンテンツを多重化処理する多重化処理手段と、
前記多重化処理手段により多重化処理された信号を放送信号として送信する送信手段を備える放送機器。 - アプリケーション管理情報を差し替える必要があるかどうかを判断する判断制御手段を備え、
前記記憶部は、映像等コンテンツを一意に特定するコンテンツ識別情報と、当該映像等コンテンツに連携するアプリケーション管理情報が関連付けられている関連テーブルを有しており、
前記判断制御手段は、前記関連テーブルを参照し、映像等コンテンツのコンテンツ識別情報に基づいて、前記記憶部に当該映像等コンテンツに関連するアプリケーション管理情報が有ることを確認した場合には、前記削除手段と前記読出手段に対して、アプリケーション管理情報の差し替え処理を行うように制御する請求項1記載の放送機器。 - 前記アプリケーション管理情報は、連携アプリケーションが所在する位置の情報が含まれている請求項1又は2に記載の放送機器。
- 前記コンテンツ処理手段は、前記映像等コンテンツに含まれる広告コンテンツを別の広告コンテンツに差し替え、
前記読出手段は、前記コンテンツ処理手段により差し替えられる広告コンテンツに対応するアプリケーション管理情報を前記記憶部から読み出す請求項1記載の放送機器。
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JP2013515215A JP5907958B2 (ja) | 2011-05-19 | 2012-05-18 | 放送機器 |
EP12785053.5A EP2712183A4 (en) | 2011-05-19 | 2012-05-18 | DIFFUSION EQUIPMENT |
US14/118,181 US20140304732A1 (en) | 2011-05-19 | 2012-05-18 | Broadcast equipment |
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JP2011112239 | 2011-05-19 |
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PCT/JP2012/062766 WO2012157741A1 (ja) | 2011-05-19 | 2012-05-18 | 放送機器 |
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US (1) | US20140304732A1 (ja) |
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JP2019161677A (ja) * | 2019-07-01 | 2019-09-19 | ソニー株式会社 | 受信装置及び受信方法、並びに送信方法 |
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JP2014236391A (ja) * | 2013-06-03 | 2014-12-15 | 株式会社東芝 | 表示制御装置、文書管理サーバ、及び放送送出装置 |
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US20140304732A1 (en) | 2014-10-09 |
EP2712183A4 (en) | 2014-12-10 |
EP2712183A1 (en) | 2014-03-26 |
JPWO2012157741A1 (ja) | 2014-07-31 |
JP5907958B2 (ja) | 2016-04-26 |
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