WO2015083468A1 - Récepteur de radiodiffusion numérique, et procédé pour arrêter un contenu de radiodiffusion - Google Patents

Récepteur de radiodiffusion numérique, et procédé pour arrêter un contenu de radiodiffusion Download PDF

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Publication number
WO2015083468A1
WO2015083468A1 PCT/JP2014/078946 JP2014078946W WO2015083468A1 WO 2015083468 A1 WO2015083468 A1 WO 2015083468A1 JP 2014078946 W JP2014078946 W JP 2014078946W WO 2015083468 A1 WO2015083468 A1 WO 2015083468A1
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WIPO (PCT)
Prior art keywords
broadcast
receiver
application
broadcast content
content
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Application number
PCT/JP2014/078946
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English (en)
Japanese (ja)
Inventor
悠一 福井
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シャープ株式会社
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Publication of WO2015083468A1 publication Critical patent/WO2015083468A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/91—Arrangements characterised by the broadcast information itself broadcasting computer programmes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/13—Arrangements for device control affected by the broadcast information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Definitions

  • the present invention relates to a digital broadcast receiver that provides a broadcast communication cooperation service to a user, and a broadcast content stopping method.
  • IPTV Internet Protocol
  • a broadcasting / communication cooperation system hybrid cast system
  • a digital broadcast receiver receives a broadcast signal by broadcast waves, outputs broadcast content (broadcast program) included in the broadcast signal, acquires communication content via a network, and broadcasts. Synchronized playback of content and communication content. Thereby, it is possible to link broadcasting and communication.
  • the digital broadcast receiver uses the broadcast signal to transmit an application at a predetermined timing. Get and start.
  • the digital broadcast receiver ends the application with the broadcast signal. Thereby, the user can view the communication content provided by the application.
  • An application whose start and end can be controlled by a broadcast signal is called a broadcast managed application.
  • IPTVFJ STD-0010 version 1.0 (1.0 version formulation on March 22, 2013)
  • the digital broadcast receiver when the first broadcast content is presented as the broadcast content, the broadcast managed application depending on the first broadcast content can be presented together with the first broadcast content.
  • the digital broadcast receiver may switch the broadcast content from the first broadcast content to the second broadcast content.
  • the second broadcast content and the broadcast managed application depending on the first broadcast content may be presented at the same time. In this case, the display is contrary to the intention of the broadcasting station.
  • the present invention has been made in view of the above points, and when switching broadcast content from the first broadcast content to the second broadcast content, it is possible to reduce the problem of displaying against the intention of the broadcast station. It is an object to provide a broadcast receiver and a broadcast content stop method.
  • the digital broadcast receiver of the present invention receives a broadcast wave including an output unit for receiver, application control information for managing broadcast content and a broadcast managed application, and receives the first broadcast content as the broadcast content in the receiver.
  • the broadcast managed application that depends on the first broadcast content is acquired by a communication network based on the reception unit presented to the output unit and the application control information, and the broadcast managed application is acquired together with the first broadcast content.
  • a receiver control unit to be presented to the receiver output unit, and the application control information includes information indicating whether or not to permit access to a broadcast resource, and the receiver control unit includes: The broadcast content is changed from the first broadcast content to the second broadcast content.
  • the broadcast content stopping method of the present invention includes receiving a broadcast wave including broadcast content and application control information for managing a broadcast managed application, and presenting the first broadcast content as the broadcast content to an output unit; Acquiring the broadcast managed application depending on the first broadcast content based on control information by a communication network, and presenting the broadcast managed application together with the first broadcast content to the output unit; and
  • the application control information includes information indicating whether or not to permit access to a broadcast resource, and when the broadcast content is switched from the first broadcast content to the second broadcast content, the application control information includes the application control information. If access to feed resources is permitted, characterized by comprising the steps of stopping the presentation of the broadcast managed application.
  • the computer program of the present invention causes a computer to execute each step of the broadcast content stopping method.
  • the digital broadcast receiver can reduce the problem of displaying against the intention of the broadcast station when switching the broadcast content from the first broadcast content to the second broadcast content.
  • FIG. 1 is a schematic block diagram showing a configuration of a broadcasting / communication cooperation system to which the present invention is applied.
  • the broadcasting / communication cooperation system includes a broadcasting station server 1 for a broadcasting station to provide a broadcasting service using a broadcast wave 41, a communication server 3 for a service provider to provide a communication service via a communication network such as the Internet, and the like. And a digital broadcast receiver 5 used by users.
  • the broadcasting station server 1 is a computer equipped with general digital broadcasting broadcasting equipment (not shown).
  • the broadcast station server 1 includes a storage device (not shown) that stores a computer program that can be executed by a computer, and a CPU (Central Processing Unit) (not shown) that reads and executes the computer program. .
  • the broadcast station server 1 generates a broadcast signal in which a broadcast program, data broadcast, application control information (Application Information Table: AIT) and the like are multiplexed.
  • the broadcast station server 1 modulates the broadcast signal into a broadcast wave 41 and transmits the broadcast wave 41 via a broadcast antenna.
  • Broadcast signals are stipulated in ARIB (registered trademark) (Association of Radio Industries and Broadcast) standards.
  • 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 are multiplexed and transmitted in a time division manner.
  • PSI Program Specific Information
  • SI Service Information
  • PSI / SI includes information indicating the type of data stored in the TS packet and information indicating the type of content.
  • the information indicating the type of data includes transmission information (Program Map Table: PMT) for transmitting data for data broadcasting and AIT.
  • Data broadcasting is content linked to broadcast programs.
  • a BML (Broadcast Markup Language) document is used, and BML is formulated by ARIB (registered trademark).
  • the PMT includes activation priority control information for designating whether or not the activation of the data broadcast is given the highest priority in the additional_arib_bxml_info () of the data encoding scheme descriptor related to the component transmitting the data broadcast.
  • the activation priority control information indicates the highest priority, the data broadcast is activated by the digital broadcast receiver 5.
  • the AIT is information for managing the broadcast managed application 43.
  • the broadcast managed application 43 is other content linked to a broadcast program, and is different in data format such as a description language from data broadcasting.
  • As a description language for the broadcast managed application 43 an HTML (Hyper Text Markup Language) document is used.
  • the AIT also includes an application ID for identifying the broadcast managed application 43 and location information (Uniform Resource Locator: URL) indicating the location of the broadcast managed application 43.
  • the PMT includes activation priority control information for designating whether or not the activation of the broadcast managed application 43 is given the highest priority in the ait_identifier_info () of the data encoding scheme descriptor related to the component transmitting the AIT. When the activation priority control information indicates the highest priority, the broadcast managed application 43 is activated by the digital broadcast receiver 5.
  • the communication server 3 is a computer that is communicably connected to the equipment of the broadcast station server 1 and distributes the broadcast managed application 43.
  • the communication server 3 includes a storage device (not shown) that stores a computer program that can be executed by a computer, and a CPU (not shown) that reads and executes the computer program.
  • the communication server 3 distributes the broadcast managed application 43 via the communication network in response to the application acquisition request.
  • the digital broadcast receiver 5 includes a receiving unit 10, a receiver output unit 20, a communication unit 31, a receiver control unit 32, and a CPU (not shown) for controlling them.
  • the communication unit 31 is a communication interface that communicates with the communication server 3 via a communication network.
  • the CPU controls the receiving unit 10, the receiver output unit 20, the communication unit 31, and the receiver control unit 32.
  • the storage unit 13 stores a computer program executable by the computer, and the CPU reads and executes the computer program.
  • the receiving unit 10 includes a tuner unit 11, a broadcast wave receiving unit 12, a storage unit 13, and a reception sensitivity measuring unit 14.
  • the broadcast wave receiving unit 12 receives the broadcast wave 41 broadcast from the broadcast station server 1 via the tuner unit 11 in response to a broadcast program viewing instruction for viewing the broadcast program.
  • the tuner unit 11 receives a broadcast wave 41 on one side of a multi-segment broadcast (hereinafter referred to as a full segment broadcast) and a one-segment broadcast.
  • the broadcast wave receiving unit 12 demodulates the broadcast wave 41 and extracts a broadcast signal, that is, a TS packet from the broadcast wave 41.
  • the broadcast wave receiving unit 12 refers to the PSI / SI of the TS packet and outputs the broadcast content included in the TS packet, that is, the broadcast program (video data and audio data) to the receiver output unit 20.
  • the broadcast wave receiving unit 12 extracts the PMT and AIT from the TS packet and stores them in the storage unit 13 in accordance with a transmission method defined in advance.
  • the reception sensitivity measurement unit 14 measures a value representing a radio wave state when the broadcast wave 41 is received, and outputs the value to the receiver control unit 32.
  • the value representing the radio wave state include a carrier-to-noise ratio (C / N ratio) value.
  • C / N ratio carrier-to-noise ratio
  • the reception quality is good.
  • the reception quality is deteriorated.
  • the receiver output unit 20 includes a voice control unit 21, a display control unit 22, a speaker 23, and a display unit 24.
  • the audio control unit 21 outputs the audio data from the broadcast wave receiving unit 12 to the speaker 23 while synchronizing with the video data whose display is controlled by the display control unit 22.
  • the display control unit 22 displays the video data from the broadcast wave receiving unit 12 on the display unit 24 in synchronization with the audio data whose output is controlled by the audio control unit 21.
  • the receiver control unit 32 includes an application execution unit 34 as a function (application engine) for acquiring and presenting the broadcast managed application 43.
  • the acquired broadcast managed application 43 is activated / terminated on the application execution unit 34.
  • the application execution unit 34 Based on the AIT stored in the storage unit 13, the application execution unit 34 communicates an application acquisition request (including at least an identifier for identifying the digital broadcast receiver 5 and the application ID and URL of the AIT described above).
  • the broadcast managed application 43 is acquired from the communication server 3 by transmitting to the communication server 3 via the unit 31.
  • the application execution unit 34 activates the broadcast managed application 43 and presents it to the receiver output unit 20.
  • the receiver control unit 32 further includes a function (not shown) for presenting data broadcasting. Based on the PMT stored in the storage unit 13, the receiver control unit 32 activates data broadcasting and presents it to the receiver output unit 20.
  • the receiver control unit 32 further includes a presentation control unit 33.
  • the presentation control unit 33 includes an AIT analysis unit 35 and a reception switching instruction unit 36.
  • the reception switching instruction unit 36 controls the tuner unit 11 to receive the broadcast wave 41 by the full segment broadcast when the value representing the radio wave state output from the reception sensitivity measurement unit 14 exceeds the threshold value. On the other hand, the reception switching instruction unit 36 controls the tuner unit 11 to receive the broadcast wave 41 by the one-segment broadcast when the value representing the radio wave state output from the reception sensitivity measurement unit 14 is equal to or less than the threshold value.
  • the above-mentioned AIT further includes one or more areas (URLs) constituting the application boundary (see “6.3.2. Access control” and “7.1.1. Application control information” in Non-Patent Document 1).
  • Application boundary authority setting descriptor indicating access authority to broadcast resources is set for each area (see “7.6. Application boundary and broadcast resource access control” in Non-Patent Document 1). reference). With this area, the broadcast managed application 43 can change the domain for each page.
  • the broadcast resource (broadcast signal) includes SI information and AV information.
  • the application boundary authority setting descriptor is information for controlling access to a broadcast resource to be executed by the application execution unit 34, and represents whether or not access to SI information and AV information is permitted. .
  • the AIT analysis unit 35 analyzes the AIT stored in the storage unit 13. First, after explaining the operation of a general digital broadcast receiver and its problems, the operation of the AIT analysis unit 35 will be explained.
  • FIG. 2 is a conceptual diagram showing the operation of a general digital broadcast receiver.
  • the receiving unit 10 receives the broadcast wave 41 by full segment broadcasting and presents it to the receiver output unit 20.
  • the receiver output unit 20 displays on the display unit 24 a full segment broadcast display screen SGF representing broadcast content received by the full segment broadcast.
  • the application execution unit 34 of the receiver control unit 32 acquires the broadcast managed application 43 based on the AIT included in the broadcast wave 41 and presents the broadcast managed application 43 to the receiver output unit 20.
  • the receiver output unit 20 displays the application display screen AP representing the broadcast managed application 43 on the full segment broadcast display screen SGF.
  • the screen displayed on the display unit 24 differs depending on whether or not the receiving unit 10 receives the broadcast wave 41 by switching from full segment broadcasting to one segment broadcasting.
  • the screen display differs depending on whether or not the broadcast content is switched from the broadcast content (first broadcast content) received by the full segment broadcast to the broadcast content (second broadcast content) received by the one segment broadcast.
  • the receiver output unit 20 displays the one segment broadcast display screen SG1 representing the broadcast content received by the one segment broadcast. Is displayed on the display unit 24. In this case, the presentation of the broadcast managed application 43 ends. That is, the application display screen AP is not displayed on the display unit 24.
  • the receiving unit 10 does not switch the broadcast wave 41 from the full segment broadcast to the one segment broadcast, since the reception sensitivity is lowered, the display state of the full segment broadcast display screen SGF remains poor. In this case, the presentation of the broadcast managed application 43 continues.
  • FIG. 3 is a conceptual diagram showing the problem of FIG.
  • This problem occurs, for example, when full segment broadcasting and one segment broadcasting are not simultaneous broadcasting.
  • the full segment broadcast display screen SGF represents a horse image.
  • the application display screen AP is dependent on the full segment broadcast display screen SGF and represents information related to horses.
  • the one-segment broadcast display screen SG1 represents a golf video, it is not related to the horse video represented by the application display screen AP.
  • the one-segment broadcast display screen SG1 is displayed on the display unit 24 when the receiving unit 10 receives the broadcast wave 41 by switching from full segment broadcasting to one-segment broadcasting.
  • the application display screen AP information related to the horse
  • the one-segment broadcast display screen SG1 golf video
  • 4 and 5 are conceptual diagrams showing the operation of the digital broadcast receiver 5 of the present invention.
  • the receiving unit 10 receives the broadcast wave 41 by full segment broadcasting and presents it to the receiver output unit 20.
  • the receiver output unit 20 displays on the display unit 24 a full segment broadcast display screen SGF representing broadcast content received by the full segment broadcast.
  • the application execution unit 34 of the receiver control unit 32 acquires the broadcast managed application 43 based on the AIT included in the broadcast wave 41 and presents the broadcast managed application 43 to the receiver output unit 20.
  • the receiver output unit 20 displays the application display screen AP representing the broadcast managed application 43 on the full segment broadcast display screen SGF.
  • the reception switching instruction unit 36 of the presentation control unit 33 of the receiver control unit 32 receives that the value indicating the radio wave state output from the reception sensitivity measurement unit 14 of the reception unit 10 is equal to or less than the threshold value.
  • the sensitivity reduction notification is output to the AIT analysis unit 35 of the presentation control unit 33 of the receiver control unit 32.
  • the AIT analysis unit 35 outputs a switching notification to the reception switching instruction unit 36 in response to the reception sensitivity decrease notification from the reception switching instruction unit 36.
  • the reception switching instruction unit 36 controls the tuner unit 11 of the receiving unit 10 so as to receive the broadcast wave 41 by one-segment broadcasting.
  • the receiver output unit 20 displays the one segment broadcast display screen SG1 representing the broadcast content received by the one segment broadcast. 24.
  • the AIT analysis unit 35 refers to the AIT included in the broadcast wave 41 and analyzes whether or not access to the broadcast resource is permitted by the AIT. Specifically, the AIT analysis unit 35 analyzes whether or not the application boundary authority setting descriptor set in the AIT permits access to the AV information.
  • an application presentation stop instruction for stopping the presentation of the broadcast managed application 43 is output to the application execution unit 34.
  • the application execution unit 34 ends the presentation of the broadcast managed application 43 in response to the application presentation stop instruction from the AIT analysis unit 35. That is, the application display screen AP is not displayed on the display unit 24.
  • the application display screen AP may depend on the full segment broadcast display screen SGF.
  • the full segment broadcast display screen SGF represents a video of a horse
  • the application display screen AP represents information related to the horse and depends on the full segment broadcast display screen SGF.
  • the one-segment broadcast display screen SG1 represents a golf video.
  • the display of the application display screen AP is stopped.
  • the one-segment broadcast display screen SG1 golf video
  • the AIT analysis unit 35 outputs a switching notification to the reception switching instruction unit 36 when the access to the AV information is not permitted by the AIT as a result of the analysis.
  • the instruction is not output to the application execution unit 34.
  • the application execution unit 34 continues to present the broadcast managed application 43. In other words, the application display screen AP remains displayed on the display unit 24.
  • the application display screen AP does not depend on the full segment broadcast display screen SGF.
  • the full segment broadcast display screen SGF represents a video of a horse
  • the application display screen AP represents information related to the weather forecast and does not depend on the full segment broadcast display screen SGF.
  • the one segment broadcast display screen SG1 represents a golf video.
  • the display of the application display screen AP information regarding weather forecast
  • the one segment broadcast display screen SG1 (golf) Video) is not displayed against the intention of the broadcasting station.
  • FIG. 6 is a flowchart showing the operation of the digital broadcast receiver 5 according to the first embodiment of the present invention.
  • the receiving unit 10 receives the broadcast wave 41 by full segment broadcasting and presents it to the receiver output unit 20 (step S11).
  • the application execution unit 34 of the receiver control unit 32 acquires the broadcast managed application 43 based on the AIT included in the broadcast wave 41 and presents the broadcast managed application 43 to the receiver output unit 20 (step S12). While the value indicating the radio wave state when the broadcast wave 41 is received exceeds the threshold (Yes in step S13), the full segment broadcast and the broadcast managed application 43 are presented simultaneously.
  • the reception switching instruction unit 36 of the presentation control unit 33 of the receiver control unit 32 outputs the above-described reception sensitivity decrease notification to the AIT analysis unit 35 of the presentation control unit 33 of the receiver control unit 32.
  • the broadcast managed application 43 does not depend on full segment broadcasting.
  • the AIT analysis unit 35 does not output the above-described application presentation stop instruction to the application execution unit 34 and outputs a switching notification to the reception switching instruction unit 36 in response to the reception sensitivity decrease notification.
  • the reception switching instruction unit 36 controls the tuner unit 11 of the receiving unit 10 so as to receive the broadcast wave 41 by one-segment broadcasting. That is, the digital broadcast receiver 5 receives the broadcast wave 41 by one-segment broadcast while continuing to present the broadcast managed application 43 (step S15). Thereafter, the digital broadcast receiver 5 receives the broadcast wave 41 while the broadcast content is being viewed.
  • the broadcast managed application 43 depends on full segment broadcasting.
  • the AIT analysis unit 35 outputs a switching notification to the reception switching instruction unit 36 in response to the reception sensitivity decrease notification, and simultaneously outputs the above-described application presentation stop instruction to the application execution unit 34.
  • the reception switching instruction unit 36 controls the tuner unit 11 of the receiving unit 10 to receive the broadcast wave 41 by one-segment broadcasting in response to the switching notification from the AIT analysis unit 35, and the application execution unit 34 performs the AIT analysis.
  • the presentation of the broadcast managed application 43 is terminated. That is, the digital broadcast receiver 5 stops presenting the broadcast managed application 43 and receives the broadcast wave 41 by one-segment broadcasting (step S16). Thereafter, the digital broadcast receiver 5 receives the broadcast wave 41 while the broadcast content is being viewed.
  • the digital broadcast receiver 5 changes the broadcast content from the first broadcast content (the broadcast content received by the full segment broadcast) to the second broadcast.
  • the broadcast managed application 43 does not depend on the first broadcast content, so the broadcast managed application Continue to present 43.
  • the digital broadcast receiver 5 switches the broadcast content from the first broadcast content to the second broadcast content, and the access to the broadcast resource is permitted by the AIT, the broadcast managed application 43 is changed to the first broadcast content. Since it depends, the presentation of the broadcast managed application 43 is stopped.
  • FIGSecond Embodiment 7 and 8 are flowcharts showing the operation of the digital broadcast receiver 5 according to the second embodiment of the present invention. In the second embodiment, only the changes from the first embodiment will be described.
  • step S15 the digital broadcast receiver 5 receives the broadcast wave 41 by one-segment broadcasting while continuing to present the broadcast managed application 43.
  • the AIT analysis unit 35 of the presentation control unit 33 of the receiver control unit 32 refers to the AIT stored in the storage unit 13 and determines whether the AIT is updated and access to the AV information is permitted. Analysis is performed (step S21). Further, the AIT analysis unit 35 refers to the AIT stored in the storage unit 13 and analyzes whether or not access to AV information is permitted by changing to a page with a different domain in the AIT (step S22). ).
  • step S21-No when there is no change in the AIT (steps S21-No, S22-No), it is the same as in the first embodiment. That is, the digital broadcast receiver 5 receives the broadcast wave 41 while the broadcast content is being viewed.
  • the broadcast managed application 43 depends on the full segment broadcast.
  • the AIT analysis unit 35 outputs the application presentation stop instruction described above to the application execution unit 34.
  • the application execution unit 34 ends the presentation of the broadcast managed application 43 in response to the application presentation stop instruction from the AIT analysis unit 35. That is, the digital broadcast receiver 5 stops presenting the broadcast managed application 43 (Step S23). Thereafter, the digital broadcast receiver 5 receives the broadcast wave 41 while the broadcast content is being viewed.
  • the broadcast managed application 43 depends on the full segment broadcast.
  • the AIT analysis unit 35 outputs the application presentation stop instruction described above to the application execution unit 34.
  • the application execution unit 34 ends the presentation of the broadcast managed application 43 in response to the application presentation stop instruction from the AIT analysis unit 35. That is, the digital broadcast receiver 5 stops presenting the broadcast managed application 43 (Step S23).
  • the digital broadcast receiver 5 changes the broadcast content from the first broadcast content (broadcast content received by full segment broadcast) to the second broadcast content (broadcast content received by one segment broadcast).
  • the broadcast managed application 43 continues to be presented because the broadcast managed application 43 does not depend on the first broadcast content. Therefore, in the digital broadcast receiver 5 according to the second embodiment of the present invention, after switching the broadcast content to the second broadcast content, when the AIT is updated and access to the broadcast resource is permitted, Since the broadcast managed application 43 depends on the first broadcast content, the presentation of the broadcast managed application 43 is stopped.
  • the digital broadcast receiver 5 according to the second embodiment of the present invention it is possible to reduce the problem of displaying against the intention of the broadcast station.
  • FIG. 9 to 11 are flowcharts showing the operation of the digital broadcast receiver 5 according to the third embodiment of the present invention. In the third embodiment, only the changes from the first and second embodiments will be described.
  • steps S21 and S22 are executed while the viewing of the broadcast content received by the one segment broadcast is continued (step S24-Yes).
  • steps S21-No, S22-No there is no change in the AIT.
  • the AIT is updated and access to the AV information is not permitted (step S21-No).
  • the AIT transitions to a page with a different domain and access to the AV information is not permitted (step S22—No).
  • step S24-No the process ends.
  • Steps S24-Yes, S21-Yes when the AIT is updated and access to the AV information is permitted (steps S24-Yes, S21-Yes), or when the domain is changed to a different page in the AIT and access to the AV information is permitted ( Steps S24-Yes, S21-No, S22-Yes) and the above-described Step S23 are executed. That is, the digital broadcast receiver 5 stops presenting the broadcast managed application 43.
  • step S16 or step S23 the AIT analysis unit 35 of the presentation control unit 33 of the receiver control unit 32 refers to the AIT stored in the storage unit 13 and performs the AIT Is updated to analyze whether or not access to the AV information is permitted (step S31). Further, the AIT analysis unit 35 refers to the AIT stored in the storage unit 13 and analyzes whether or not access to AV information is permitted by changing to a page with a different domain in the AIT (step S32). ).
  • the AIT is updated and access to the AV information is permitted (step S31—Yes).
  • access to AV information is permitted by changing to a page with a different domain in the AIT (steps S31-No, S32-Yes).
  • step S34-No access to AV information is permitted by changing to a page with a different domain in the AIT.
  • step S31-No when the AIT is updated and access to the AV information is not permitted (step S31-No), and when the domain is changed to a different page in the AIT and access to the AV information is not permitted (step S32-No).
  • the broadcast managed application 43 does not depend on full segment broadcasting.
  • the AIT analysis unit 35 outputs an application presentation execution instruction for executing application presentation to the application execution unit 34.
  • the application execution unit 34 presents the broadcast managed application 43 in response to an application presentation execution instruction from the AIT analysis unit 35. That is, the digital broadcast receiver 5 presents the broadcast managed application 43 (step S33). Thereafter, step S21 described above is executed.
  • the digital broadcast receiver 5 changes the broadcast content from the first broadcast content (broadcast content received by full segment broadcast) to the second broadcast content (broadcast content received by one segment broadcast).
  • the broadcast managed application 43 is stopped from being presented because the broadcast managed application 43 depends on the first broadcast content.
  • the broadcast managed application 43 is stopped from presenting because the broadcast managed application 43 depends on the first broadcast content.
  • the digital broadcast receiver 5 after the digital broadcast receiver 5 stops presenting the broadcast managed application 43, the AIT is updated and access to the broadcast resource is permitted. If the broadcast managed application 43 does not depend on the first broadcast content when the AIT does not permit access to the broadcast resource due to transition to a page with a different domain in the AIT, the broadcast managed application 43 must be presented. Do. Thus, according to the digital broadcast receiver 5 according to the third embodiment of the present invention, it is possible to reduce the problem of displaying against the intention of the broadcast station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

　L'invention concerne un récepteur de radiodiffusion numérique dans lequel une unité de réception (10) reçoit une onde de radiodiffusion (41) contenant un contenu de radiodiffusion et un AIT, et présente un premier contenu de radiodiffusion comme contenu de radiodiffusion à une unité de sortie (20) du récepteur. Une unité de commande (32) du récepteur acquiert une application gérée en radiodiffusion (43) dépendant du premier contenu de radiodiffusion par un réseau de communication sur la base de l'AIT, et présente l'application gérée en radiodiffusion (43) conjointement au premier contenu de radiodiffusion, à l'unité de sortie (20) du récepteur. Si l'accès à une ressource de radiodiffusion est autorisé dans l'AIT quand le contenu de radiodiffusion est commuté du premier contenu de radiodiffusion au second contenu de radiodiffusion, l'unité de commande (32) du récepteur cesse de présenter l'application gérée en radiodiffusion (43). L'invention permet d'atténuer le problème lié au fait le récepteur de radiodiffusion numérique affiche un contenu contraire à l'intention d'une station de radiodiffusion quand le contenu de radiodiffusion est commuté du premier contenu de radiodiffusion au second contenu de radiodiffusion.
PCT/JP2014/078946 2013-12-03 2014-10-30 Récepteur de radiodiffusion numérique, et procédé pour arrêter un contenu de radiodiffusion WO2015083468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013250111A JP2015109501A (ja) 2013-12-03 2013-12-03 デジタル放送受信機、及び、放送コンテンツ停止方法
JP2013-250111 2013-12-03

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WO2015083468A1 true WO2015083468A1 (fr) 2015-06-11

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WO2016203850A1 (fr) * 2015-06-16 2016-12-22 ソニー株式会社 Appareil de réception, appareil d'émission et procédé de traitement de données

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US11639995B2 (en) * 2017-08-09 2023-05-02 Sony Corporation Performance of a time of flight (ToF) laser range finding system using acoustic-based direction of arrival (DoA)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016203850A1 (fr) * 2015-06-16 2016-12-22 ソニー株式会社 Appareil de réception, appareil d'émission et procédé de traitement de données
JPWO2016203850A1 (ja) * 2015-06-16 2018-04-05 ソニー株式会社 受信装置、送信装置、およびデータ処理方法
US10595064B2 (en) 2015-06-16 2020-03-17 Sony Corporation Receiving device, transmitting device, and data processing method
US11064231B2 (en) 2015-06-16 2021-07-13 Saturn Licensing Llc Receiving device, transmitting device, and data processing method

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