WO2020011268A1 - 广播信号的收发方法及装置 - Google Patents

广播信号的收发方法及装置 Download PDF

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Publication number
WO2020011268A1
WO2020011268A1 PCT/CN2019/095889 CN2019095889W WO2020011268A1 WO 2020011268 A1 WO2020011268 A1 WO 2020011268A1 CN 2019095889 W CN2019095889 W CN 2019095889W WO 2020011268 A1 WO2020011268 A1 WO 2020011268A1
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Prior art keywords
control information
broadcast signal
application service
extended
service descriptor
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PCT/CN2019/095889
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English (en)
French (fr)
Inventor
筒井幸彦
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青岛海信电器股份有限公司
东芝视频解决方案株式会社
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Priority claimed from JP2018132494A external-priority patent/JP2020010290A/ja
Priority claimed from JP2018132496A external-priority patent/JP7062539B2/ja
Priority claimed from JP2018132497A external-priority patent/JP2020010293A/ja
Priority claimed from JP2018132498A external-priority patent/JP2020010294A/ja
Priority claimed from JP2018132493A external-priority patent/JP6724073B2/ja
Priority claimed from JP2018132495A external-priority patent/JP2020010291A/ja
Application filed by 青岛海信电器股份有限公司, 东芝视频解决方案株式会社 filed Critical 青岛海信电器股份有限公司
Publication of WO2020011268A1 publication Critical patent/WO2020011268A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems

Definitions

  • the present application relates to the field of broadcasting, and in particular, to a method and a device for transmitting and receiving broadcast signals.
  • the multimedia services in advanced BS digital broadcasting and advanced broadband CS digital broadcasting refer to the general term of subtitle service, text overlay service, and data content service, and are executed in accordance with the operating rules of Non-Patent Literature 1 and Non-Patent Literature 2.
  • Data content service is one of the broadcasting services that simultaneously provides application functions such as HTML on the basis of a video / audio-based broadcasting service.
  • the data content service configures an application service descriptor in an MPEG media transmission packet table (MPT, MMT, Package Table), which is one of the control information included in the broadcast signal, to indicate the program's additional data content service for the broadcast signal.
  • MPT MPEG media transmission packet table
  • MMT MMT
  • Package Table a descriptor for describing entry information and the like of a service-related application.
  • Non-Patent Document 1 "Standard Specification of Media Transmission Method Based on MMT in Digital Broadcasting" ARIB STD-B60 Version 1.12 Revised on April 12, 2018, General Radio and Television Industry Association
  • Non-Patent Document 2 "Technical Materials for Operational Regulations of Advanced Broadband Satellite Digital Broadcasting" ARIB TR-B39 Version 1.7 Revised on April 12, 2018, General Radio and Television Industry Association
  • Non-Patent Document 2 only one application service descriptor must be arranged in the MPT descriptor area of the MPT of the broadcast service included in the data content service.
  • An object of the method and apparatus for transmitting and receiving a broadcast signal is to provide an MPT and an application service descriptor corresponding to the higher functionality of a data content service.
  • an embodiment of the present application provides a method for transmitting a broadcast signal, including: setting the control information included in the broadcast signal, wherein the control information includes a function for setting the application function The second control information of the entry information and the first control information configured with more than one of the second control information; and transmitting the broadcast signal including the control information, wherein the broadcast signal is transmitted by a moving image expert group media
  • the MMT / type-length-value TLV method is formed by multiplexing a video signal and an audio signal of a broadcast program with an application function given to control information of the broadcast program.
  • an embodiment of the present application provides a broadcast signal sending device, including: a setting unit, configured to set the control information included in the broadcast signal, where the control information includes a The second control information of the entry information of the application function and the first control information configured with more than one of the second control information; a sending unit, configured to send the broadcast signal including the control information, wherein the broadcast The signal is formed by multiplexing the MMT / type-length-value TLV in the moving picture expert group media, and multiplexing a video signal and an audio signal of a broadcast program with an application function given to control information of the broadcast program.
  • an embodiment of the present application provides a method for receiving a broadcast signal, including: receiving the broadcast signal, wherein the broadcast signal is a MMT / type-length-value TLV method for transmitting the broadcast signal in a moving image expert group media, and broadcasts the broadcast signal.
  • a video signal and an audio signal of a program are formed by multiplexing an application function given to control information of the broadcast program; analyzing the first control information and all the information from the control information included in the broadcast signal The second control information, and obtaining desired second control information from any one or more of the second control information; and using the entry information of the desired second control information to control the application function .
  • an embodiment of the present application provides a receiving apparatus for a broadcast signal, including: a receiving unit configured to receive the broadcast signal, where the broadcast signal is a MMT / type-length-value TLV transmitted over a moving image expert group medium
  • a receiving unit configured to receive the broadcast signal, where the broadcast signal is a MMT / type-length-value TLV transmitted over a moving image expert group medium
  • the entry information of the information controls the application function.
  • an embodiment of the present application provides a method for transmitting and receiving a broadcast signal.
  • the steps on the transmitting side include: setting the control information included in the broadcast signal, where the control information includes information for setting Second control information of entry information of the application function and first control information configured with more than one of the second control information; and sending the broadcast signal including the control information, wherein the broadcast signal is a moving image
  • the expert group media transmission MMT / type-length-value TLV method is formed by multiplexing a video signal and an audio signal of a broadcast program with an application function given to control information of the broadcast program;
  • the steps on the receiving side include: Receiving the broadcast signal; analyzing the first control information and the second control information from the control information included in the broadcast signal, and acquiring from any one of the more than one of the second control information Desired second control information; and controlling the application function using entry information of the desired second control information.
  • an embodiment of the present application provides a transmitting / receiving device for a broadcast signal.
  • a transmitting side includes: a setting unit configured to set the control information included in the broadcast signal, where the control information includes Second control information for setting entry information of the application function and first control information configured with more than one of the second control information; a sending unit, configured to send the broadcast signal including the control information,
  • the broadcast signal is a MMT / type-length-value TLV transmission method of the moving picture expert group media, which multiplexes a video signal and an audio signal of a broadcast program with an application function assigned to the control information of the broadcast program.
  • the receiving side includes: a receiving unit for receiving the broadcast signal, wherein the broadcast signal is an application function that assigns a video signal and an audio signal of a broadcast program and control information to the broadcast program in an MMT / TLV manner; Formed by multiplexing; an analysis unit that analyzes the first control information from the control information included in the broadcast signal And the second control information, and obtaining desired second control information from any one or more of the second control information; and a control unit, using entry information of the desired second control information, and Controlling said application function.
  • the broadcast signal is an application function that assigns a video signal and an audio signal of a broadcast program and control information to the broadcast program in an MMT / TLV manner; Formed by multiplexing; an analysis unit that analyzes the first control information from the control information included in the broadcast signal And the second control information, and obtaining desired second control information from any one or more of the second control information; and a control unit, using entry information of the desired second control information, and Controlling said application function.
  • control information is control information of a TLV data packet or MMT.
  • the first control information is MPT.
  • the second control information is an application service descriptor.
  • the desired second control information is determined according to an order of the second control information configured in the first control information.
  • analyzing the first control information and the second control information from the control information included in the broadcast signal includes: analyzing the control information included in the broadcast signal. Said first control information; determining said desired second control information according to an order of said second control information arranged in said first control information.
  • obtaining the desired second control information from any one or more of the second control information includes: determining the desired second control information according to a value of an application_format field of the application service descriptor. The desired second control information is described.
  • obtaining the desired second control information from any one or more of the second control information includes: determining the desired second control information according to a value of a document_resolution field of the application service descriptor. The desired second control information is described.
  • the analysis unit determines the desired second control information according to an order of the second control information configured in the first control information.
  • the analysis unit determines the desired second control information according to a value of an application_format field of the application service descriptor.
  • the analysis unit determines the desired second control information according to a value of a document_resolution field of the application service descriptor.
  • FIG. 1 is a schematic diagram showing the overall configuration of a broadcast signal transmitting device, a content server, a broadcast signal receiving device, and a communication network system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram briefly showing a structure of a broadcast signal transmitting device
  • FIG. 3 is a schematic diagram briefly showing a structure of a broadcast signal receiving device
  • FIG. 4 is a diagram showing the syntax of MPT
  • FIG. 5 is a schematic diagram showing the syntax of an application service descriptor
  • FIG. 6A is a list showing a settable value specified by the application_format field of the application service descriptor specified in Non-Patent Literature 1 and Non-Patent Literature 2 and a settable value specified by the document_resolution field.
  • 6B is a list showing examples of values that can be set in the application_format field and values that can be set in the document_resolution field of the extended application business descriptor;
  • FIG. 7 shows the extended MPT generated by the control information generating unit of the broadcast signal transmitting device, the extended application service descriptor configured therein, and the extended application service descriptor obtained by the control information analysis unit of the broadcast signal receiving device from the extended MPT.
  • FIG. 8 shows an extended MPT generated by a control information generating unit of a broadcast signal transmitting device, an extended application service descriptor configured therein, and an extended application service descriptor obtained from an extended MPT by a control information analysis unit of a broadcast signal receiving device Schematic diagram of another example of the combination;
  • FIG. 9 shows the extended MPT generated by the control information generating unit of the broadcast signal transmitting device, the extended application service descriptor configured therein, and the extended application service descriptor obtained from the extended MPT by the control information analysis unit of the broadcast signal receiving device.
  • FIG. 9 shows the extended MPT generated by the control information generating unit of the broadcast signal transmitting device, the extended application service descriptor configured therein, and the extended application service descriptor obtained from the extended MPT by the control information analysis unit of the broadcast signal receiving device.
  • FIG. 1 is a schematic diagram of the overall structure of a broadcast signal transmitting device (unit) 100, a server 120, a broadcast signal receiving device 140, and a communication network 180 system according to an embodiment of the present application.
  • Reference numeral 100 is a broadcasting signal transmitting device (also referred to as a broadcasting station) for broadcasting a broadcasting program, and includes a broadcasting program server 101 and a first basic function 102.
  • the broadcast signal transmitting apparatus 100 may be a ground station that collects the programs of various broadcasters and uplinks them to the communication satellite 150.
  • the broadcast program server 101 may be an area for storing in advance data of a program to be broadcast by the broadcast station 100, a name of the program, a broadcast date and time, a description of the content, and the like.
  • the broadcast program server 101 may be a server for storing data such as programs transmitted from broadcasters.
  • the first basic function 102 is a basic function of the broadcasting station 100, which has symbolization of video data, audio data, and the like of a program to be broadcast (symbolization is referred to as encoding), and includes a message including control information.
  • the signaling information signals as control information are control signals of type-length-value (TLV, Type, Value) data packets (also referred to as TLV packets) or MPEG media transport (MMT, MPEG Media Transport).
  • TLV type-length-value
  • MMT MPEG media transport
  • the content server 120 is configured to perform data content services.
  • the broadcast signal receiving device 140 accesses the content server 120 to execute a data content service based on signaling information such as MH-AIT (MH-Application Information Table) included in the broadcast signal, and downloads a desired content.
  • MH-AIT MH-Application Information Table
  • the user's broadcast signal receiving device 140 may be referred to as a television receiving device, and includes a second basic function 141 and a control unit 142.
  • the broadcast signal receiving device 140 may be connected to a display unit 160, a hard disk drive (HDD, Hard Disk Drive) 162, and the like through an interface (I / F) for connection with peripheral devices.
  • HDD Hard Disk Drive
  • the second basic function 141 is a basic function for realizing a television receiving device.
  • the second basic function 141 has a function of receiving a broadcast signal transmitted from a broadcasting station 100, and separating a symbolized video signal (also referred to as a video stream), a symbol included in the broadcast signal
  • the audio signal also called audio stream
  • subtitle data and signaling information signals functions such as decoding video signals and audio signals, receiving subtitle data, and analyzing signaling information signals.
  • the control unit 142 is used to control the overall operation of the broadcast signal receiving device 140.
  • the control unit 142 also manages connection with peripheral devices connected to the broadcast signal receiving device 140, such as the display unit 160, speakers 161, and management of data transmission and reception, and hard disks bound to the broadcast signal receiving device 140.
  • Drive HDD, Hard Disk Drive 162 connection and management of data transmission and reception.
  • the display unit 160 is configured to display a video included in a broadcast signal received using the second basic function 141.
  • the display unit 160 may further have a built-in speaker 161 for outputting sound included in a broadcast signal received using the second basic function 141.
  • the speaker 161 built into the display unit 160 may be an external speaker connected to an interface such as a universal serial bus (USB).
  • USB universal serial bus
  • the display unit 160 and the broadcast signal receiving device 140 are independent of each other, but they may also be integrated with the broadcast signal receiving device 140 as a function of the broadcast signal receiving device 140.
  • FIG. 2 is a schematic diagram schematically showing the configuration of the broadcast signal transmitting apparatus 100.
  • the broadcast signal transmission device 100 symbolizes video data, audio data, and the like of the program and transmits it as a broadcast signal.
  • the data broadcasting encoder 210 is used to encode data for data broadcasting of a program stored in the broadcasting program server 101. When a broadcast program is read from the broadcast program server 101, the data broadcast encoder 210 encodes data for data broadcasting of the read program.
  • the video encoder 211 is a video encoder for encoding video data of a program stored in the broadcast program server 101. If a broadcast program is read from the broadcast program server 101, the video encoder 211 encodes video data of the read program.
  • the audio encoder 212 is an audio encoder for encoding audio data of a program stored in the broadcast program server 101. If a broadcast program is read from the broadcast program server 101, the audio encoder 212 encodes the audio data of the read program.
  • the subtitle encoder 213 is a subtitle encoder for encoding subtitle data of a program stored in the broadcast program server 101. If a broadcast program is read from the broadcast program server 101, the subtitle encoder 213 encodes the subtitle data of the read program.
  • the control information generating unit 214 is used to generate control information of a TLV data package and MMT.
  • the control signal of the TLV data packet is control information (also referred to as TLV-SI) related to the multiplexing of IP packets (IP packets), and provides information for channel selection, IP address, and The corresponding information of the service.
  • the control information of the MMT is control information (also referred to as MMT-SI) related to the structure of the MMT packet and the broadcast service.
  • the control information generating unit generates a signal including TLV data packets of control information related to a program that is an encoding target of the video encoder 211, the audio encoder 212, and the caption encoder 213, and the control information of the MMT.
  • the scrambler 215 cooperates with the CAS module 216 to encode the data for broadcast data output from the data broadcast encoder 210, the encoded video data output from the video encoder 211, and the data output from the audio encoder 212.
  • the encoded audio data or the subtitle data encoded from the output subtitle encoder 213 is scrambled.
  • the CAS module 216 is used to generate a key used by the jammer 215 when performing scrambling.
  • a multiplexer 217 is a data broadcast stream generated by encoding the data broadcast data by the data broadcast encoder 210 by the MMT / TLV method, and a video generated by encoding the video data by the video encoder 211 A stream, an audio stream generated by encoding audio data by the audio encoder 212, a subtitle stream generated by encoding the subtitle data by the subtitle encoder 213, and control information generated by the control information generating unit 214 are multiplexed (multiplexing).
  • the multiplexer 217 generates a TLV stream in which a video stream, an audio stream, a subtitle stream, a TLV packet, and control information of an MMT are multiplexed.
  • the sending unit 218 is configured to send a broadcast signal.
  • the transmitting unit 218 performs channel coding processing such as 16APSK modulation and error correction coding on the TLV stream generated by the multiplexer 217 to realize broadcast signal transmission.
  • FIG. 3 is a schematic diagram briefly showing the structure of the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 includes a second basic function 141 and a control unit 142 for implementing a broadcast signal receiving function.
  • the second basic function 141 includes a broadcast tuner 301, a demultiplexer 302, a descrambler 303, a CAS module 304, a data broadcasting engine 305, a video decoder 306, and an audio decoder 307. , Subtitle decoder 308, control information analysis unit 309, graphical user interface (GUI) 320.
  • GUI graphical user interface
  • the broadcast tuner 301 is used to receive a TLV stream transmitted as a broadcast signal.
  • the broadcast signal received by the broadcast tuner 301 is input to the demultiplexer 302.
  • the demultiplexer 302 is used to separate the multiplexed TLV stream into a video stream, an audio stream, a data broadcast stream, a subtitle stream, and control information.
  • the demultiplexer 302 is further configured to input the separated video stream, audio stream, data broadcast stream, and subtitle stream to the descrambler 303, and input the signaling information signal as the control information to the control information analysis unit 309.
  • the descrambler 303 cooperates with the CAS module 304 to descramble the input video stream, audio stream, data broadcast stream, and subtitle stream.
  • the descrambler 303 inputs the descrambled video stream to the video decoder 306, the descrambled audio stream to the audio decoder 307, and the descrambled data broadcast stream to the data broadcasting engine 305,
  • the descrambled subtitle stream is input to a subtitle decoder 308.
  • the CAS module 304 generates a key used by the descrambler 303 when descrambling.
  • the data broadcasting engine 305 is configured to receive and process a data broadcasting stream, and send the processing result to the synthesizer 326.
  • the data for broadcasting and the video data and the like sent to the synthesizer 326 are synthesized and displayed on the display unit 160.
  • the video decoder 306 is configured to decode the received video stream and generate a signal for display on the display unit 160.
  • the audio decoder 307 is configured to decode the received audio stream and generate a signal output to the speaker 161.
  • the subtitle decoder 308 is configured to decode the received subtitle stream and generate a signal for display on the display unit 160.
  • the decoded video signal, subtitle signal, and data broadcasting signal are synthesized by the synthesizer 326 and output to the display unit 160.
  • the decoded audio signal is output to a speaker 161.
  • the control information analysis unit 309 is configured to analyze a signaling information signal that is control information of a broadcast signal, and then send the analysis result to the control unit 142.
  • the control unit 142 is configured to control the overall operation of the broadcast signal receiving device 140.
  • the control unit 142 is further configured to control a network interface 331 as an interface with a communication network and an external input interface 332 as a connection interface with an external device.
  • Non-Patent Document 2 when performing data content services that provide application functions such as HTML while providing video / audio-based broadcast services, MPT (MMT Package Table) must be used as one of the signaling information signals.
  • MPT MMT Package Table
  • Configure an application service descriptor the application service descriptor is also called an application service descriptor.
  • FIG. 4 is a schematic diagram showing syntax of MPT.
  • the asset_descriptors_length field shown by reference numeral 401 indicates the size of the area shown by reference numeral 402.
  • M is an integer
  • Non-Patent Document 2 when a broadcast signal transmission device performs a data content service that simultaneously provides application functions such as HTML for a video / audio-based broadcast service, it can only configure one to be transmitted as a broadcast signal in the data area 402 of the MPT.
  • Application business descriptor when a broadcast signal transmission device performs a data content service that simultaneously provides application functions such as HTML for a video / audio-based broadcast service, it can only configure one to be transmitted as a broadcast signal in the data area 402 of the MPT.
  • the broadcast signal receiving device 100 can recognize that the transmitted broadcast signal is also provided with HTML or the like. Application functions.
  • the method and device for transmitting and receiving broadcast signals according to the embodiments of the present application have a function of generating and analyzing a highly functional extended application service descriptor corresponding to a data content service.
  • the method and device for transmitting and receiving broadcast signals according to the embodiments of the present application have a function of generating and analyzing an extended MPT in which a plurality of extended application service descriptors can be arranged in the MPT.
  • FIG. 5 is a diagram showing the syntax of an application service descriptor.
  • Application_format indicated by reference numeral 501 indicates an application symbolization method used in a data content service.
  • the document_resolution shown by reference numeral 502 indicates a resolution of the data content, and the resolution may also be referred to as a resolution.
  • FIG. 6A shows a list of settable values of the application_format field and a settable value of document_resolution of the application service descriptor specified in Non-Patent Literature 1 and Non-Patent Literature 2.
  • the settable value in the application_format field is only "0x1" (ARIB-HTML5), and the settable value in the document_resolution field is "0000" (1920x1080), "0001" (3840x2160), or "0010" (7680x4320).
  • FIG. 6B shows a list of examples of values that can be set in the application_format field and the document_resolution field of the extended application service descriptor.
  • an example of a settable value in the application_format field of the extended application service descriptor is to add, for example, "0x2" (HTML -A), "0x3" (HTML-B).
  • HTML-A and HTML-B are application symbolization methods newly defined with respect to HTML-5, which is a current application symbolization method defined in Non-Patent Literature 1 and Non-Patent Literature 2.
  • An example of a value that can be set in the document_resolution field of the extended application service descriptor is an example in which 0011 (11520x6480) is added to the settable value specified in the document_resolution field of the application service descriptor.
  • the extended application service descriptor is a value that can be set in the application_format field or a value that can be set in the document_resolution field.
  • the value that can be set for the application service descriptor may be extended for fields other than the application_format field or the document_resolution field.
  • the extended MPT is for the MPT to configure the number of extended application service descriptors defined in FIG. 6B in the data configuration area of the descriptor shown by reference numeral 402 in FIG. 4, and is not limited to one, but extended to multiple .
  • the method and device for transmitting and receiving broadcast signals have a function of generating and analyzing extended application service descriptors and extended MPTs, and thus can support high-functionality of data content services (for example, corresponding to The receiving device of the new (more advanced / advanced) service can cope with the new (more advanced / advanced) and the receiving device corresponding to only the conventional service corresponds to the conventional service).
  • FIG. 7 shows an example of a combination of an extended MPT generated by the control information generating unit 214 and an extended application service descriptor configured therein and an extended application service descriptor obtained by the control information analysis unit 309 from the extended MPT.
  • Part (A-1) of FIG. 7 shows an example in which the control information generating unit 214 generates an extended MPT 701 configured with one extended application service descriptor (AS-1) 702.
  • part (A-2) of FIG. 7 shows the control information analysis unit 309 as a desired extended application service descriptor to obtain the extended application service descriptor (AS-1) configured in the received extended MPT 701. 702 example.
  • Reference numeral 701 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numeral 702 denotes an extended application service descriptor configured by the control information generating unit 214 in the extended MPT.
  • the value 703-1 on the left indicates the value “0x1” set by the control information generating unit 214 in the application_format field of the extended application business descriptor
  • the value 703-2 on the right indicates control information generation
  • the unit 214 sets a value "0001" in the document_resolution field of the extended application service descriptor.
  • the meanings of the two values in parentheses are the same in the following description of the extended application service descriptor.
  • the broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT 701 configured with the extended application service descriptor (AS-1) 702 in a broadcast signal, and transmits the broadcast information to the broadcast signal receiving apparatus 140.
  • AS-1 extended application service descriptor
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor included in the control information received by the broadcast signal, and obtains the extended application service descriptor that satisfies the conditions as the expected extended application service description. symbol.
  • Part (A-2) of FIG. 7 is used as an example to indicate that the control information analysis unit 309 analyzes the extended MPT701 and analyzes the values of the fields of the configured extended application service descriptor (AS-1) 702 Based on the results, the extended application service descriptor (AS-1) 702 is obtained as an example of the desired extended application service descriptor.
  • the control information analysis unit 309 may make a determination that, for example, a desired extended application service descriptor may be determined by determining a value of an application_format field set in the extended application service descriptor (AS-1) 702, or The desired extended application business descriptor can also be determined by determining the value set in the document_resolution field, or it can be determined by determining the value set in the application_format field and the value set in the document_resolution field. Descriptor of the desired extended application service.
  • the control information analysis unit 309 may determine it as a desired extended application service descriptor, or When the value of the document_resolution field is "0001”, the control information analysis unit 309 may also determine it as the desired extended application service descriptor, or the value of the application_format field is "0x1" and the value of the document_resolution field When it is "0001", the control information analysis unit 309 may determine it as a desired extended application service descriptor.
  • Part (B-1) of FIG. 7 shows another example in which the control information generating unit 214 generates an extended MPT 711 configured with an extended application service descriptor (AS-1) 712.
  • AS-1 extended application service descriptor
  • part (B-2) of FIG. 7 shows that the control information analysis unit 309 has not acquired the extended application service descriptor (AS-1) 712 configured in the received extended MPT711 as the expected extended application service descriptor example of.
  • Reference numeral 711 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numeral 712 denotes an extended application service descriptor configured by the control information generating unit 214 in the extended MPT.
  • the broadcast control information is multiplexed in a broadcast signal and transmitted to the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor in the control information included in the received broadcast signal, and obtains the extended application service descriptor that satisfies the condition as a desired extended application service descriptor.
  • Part (B-2) of FIG. 7 shows that the control information analysis unit 309 analyzes the extended MPT711 and analyzes the values of the fields of the configured extended application service descriptor (AS-1) 712, and As a result, the extended application service descriptor (AS-1) 712 is not obtained as an example of the desired extended application service descriptor.
  • the control information analysis unit 309 may determine that, for example, the value of the application_format field set in the extended application service descriptor (AS-1) 712 may be determined to be not the desired extended application service descriptor.
  • the control information analysis unit 309 may determine that it is not the desired extended application service descriptor, Alternatively, when the value of the document_resolution field is other than “0000”, the control information analysis unit 309 may determine that it is not the desired extended application service descriptor, or the value of the application_format field is “0x1” and set In the case where the value of the document_resolution field is other than the combination of “0000”, the control information analysis unit 309 may determine that it is not the desired extended application service descriptor.
  • the control information analysis unit 309 determines that the extended MPT included in the received broadcast signal is not configured with an extended application Business descriptor. That is, the broadcast signal receiving device 140 may determine that a data content service is not provided in the received broadcast signal.
  • FIG. 8 is a schematic diagram of another example of a combination of an extended MPT generated by the control information generating unit 214 and an extended application service descriptor configured therein and an extended application service descriptor obtained by the control information analysis unit 309 from the extended MPT.
  • Part (A-1) of FIG. 8 is an example of generating an extended MPT801 configured with an extended application service descriptor (AS-1) 802-1 and an extended application service descriptor (AS-2) 802-2 for the control information generating unit 214. .
  • part (A-2) of FIG. 8 is for the control information analysis unit 309 to obtain the extended application service descriptor (AS-1) 802-1 configured in the received extended MPT801 as the expected extended application service descriptor. example.
  • Reference numeral 801 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 802-1 and 802-2 indicate two extended application service descriptors configured by the control information generating unit 214 in the extended MPT.
  • the two values in parentheses are the same as in the case of FIG. 7.
  • the broadcast signal transmitting apparatus 100 multiplexes control information including an extended MPT801 configured with an extended application service descriptor (AS-1) 802-1 and an extended application service descriptor (AS-2) 802-2 in a broadcast signal. And sends it to the broadcast signal receiving device 140.
  • AS-1 extended application service descriptor
  • AS-2 extended application service descriptor
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor in the control information included in the received broadcast signal, and obtains the extended application service descriptor that satisfies the condition as a desired extended application service descriptor.
  • (A-2) of FIG. 8 shows that the control information analysis unit 309 analyzes the extended MPT 801, and analyzes the two extended application service descriptors 802-1 and 802.1 The sequence of the data area of the data of the configuration descriptor shown in 402 of 4 is analyzed, and based on the result, the extended application service descriptor (AS-1) 802-1 is obtained as the expected extended application service descriptor. example.
  • the control information analysis unit 309 may implement the determination in the following manner: For example, the application_format set in the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 may be used.
  • the value of the field is determined to be the desired extended application business descriptor, or the value set in the document_resolution field may be determined to be the expected extended application business descriptor, or it may be By determining the value set in the application_format field and the value set in the document_resolution field, it is determined that it is the desired extended application service descriptor.
  • control information analysis unit 309 may also determine an extended application service descriptor (AS-1) 802-1, an extended application service descriptor (AS- 2) Configuration sequence of 802-2.
  • the control information analysis unit 309 may set the value of the application_format field set in the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 to "0x1
  • the extended application service descriptor (AS-1) 802-1 that is first configured in the extended application service descriptor is determined to be the desired extended application service descriptor, or the value set in the document_resolution field may be " 0001 "extended application service descriptor, the first configured extended application service descriptor (AS-1) 802-1 is determined to be the desired extended application service descriptor, or the value in the application_format field may be set
  • the extended application service descriptor (AS-1) 802-1 which is the first to be configured among the extended application service descriptors whose value of the document_resolution field is "0001" set to "0x1" is determined to be the desired extended application service descriptor .
  • the order of the extended application service descriptors to be determined by the control information analysis unit 309 in the extended MPT may not be configured first, but may be configured last.
  • the control information analysis unit 309 sets the value of the application_format field set in the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 to "0x1" and sets The extended application service descriptor (AS-1) 802-1 that is last configured in the extended application service descriptor whose value of the document_resolution field is "0001" is determined to be the desired extended application service descriptor.
  • Part (B-1) of FIG. 8 shows that the control information generating unit 214 generates the extended MPT811 configured with the extended application service descriptor (AS-1) 812-1 and the extended application service descriptor (AS-2) 812-2 Another example.
  • part (B-2) of FIG. 8 shows that the control information analysis unit 309 acquires the extended application service descriptor (AS-2) 812-2 configured in the received extended MPT811 as a desired extended application service description Character example.
  • Reference numeral 811 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 812-1 and 812-2 indicate two extended application service descriptors configured by the control information generating unit 214 in the extended MPT.
  • the broadcast signal transmitting apparatus 100 multiplexes control information in an extended MPT811 including an extended application service descriptor (AS-1) 812-1 and an extended application service descriptor (AS-2) 812-2 in a broadcast signal, Then, it is transmitted to the broadcast signal receiving device 140.
  • AS-1 extended application service descriptor
  • AS-2 extended application service descriptor
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor in the control information included in the received broadcast signal, and obtains the extended application service descriptor that satisfies the condition as a desired extended application service descriptor.
  • the example shown in part (B-2) of FIG. 8 is used to indicate that the control information analysis unit 309 analyzes the extended MPT811 and analyzes the two extended application service descriptors 812-1 and 812 -2
  • the analysis is performed in the order of the data area where the data of the configuration descriptor shown in 402 of FIG. 4 is arranged, and based on the result, the extended application service descriptor (AS-2) 812-2 is obtained as the desired extension
  • AS-2 extended application service descriptor
  • control information analysis unit 309 may set the value of the document_resolution field set in the extended application service descriptor (AS-1) 812-1 and the extended application service descriptor (AS-2) 812-2 to " Among the extended application service descriptors of "0001", the first extended application service descriptor (AS-2) 812-2 is determined to be a desired extended application service descriptor.
  • Part (C-1) of FIG. 8 shows that the control information generating unit 214 generates the extended MPT821 configured with the extended application service descriptor (AS-1) 822-1 and the extended application service descriptor (AS-2) 822-2. Another example.
  • part (C-2) of FIG. 8 shows that the control information analysis unit 309 has not acquired the extended application service descriptor (AS-1) 822-1, the extended application service descriptor (AS-1) configured in the received extended MPT821 ( Any of AS-2) 822-2 is an example of a desired extended application service descriptor.
  • Reference numeral 821 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 822-1 and 822-2 indicate extended application service descriptors configured by the control information generating unit 214 in the extended MPT.
  • the broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT821 configured with the extended application service descriptor (AS-1) 822-1 and the extended application service descriptor (AS-2) 822-2 in the broadcast signal. And sends it to the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor in the control information included in the received broadcast signal, and uses the extended application service descriptor that satisfies the conditions as the expected extended application service descriptor. Obtain.
  • Part (C-2) of FIG. 8 shows that the control information analysis unit 309 analyzes the extended MPT821, and configures the two extended application service descriptors 822-1 and 822-2 configured in the extended MPT821 with FIG.
  • the sequence of the data area of the data of the configuration descriptor shown in 402 is analyzed, and according to the result, no extended application service descriptor is obtained as an example of the desired extended application service descriptor.
  • control information analysis unit 309 determines that it is the desired extended application service description And determines that the extended application service descriptor having a combination of other setting values is not the expected extended application service descriptor.
  • control information analysis unit 309 performs analysis in the order of the data area where the data of the configuration descriptor shown in 402 in FIG. Until the extended application service descriptor of a predetermined condition appears, a desired extended application service descriptor can be obtained.
  • FIG. 8 shows an example in which the values of the document_resolution field of multiple extended application service descriptors to be configured in the extended MPT are different.
  • the values of the application_format field of multiple extended application service descriptors to be configured in the extended MPT may also be different .
  • FIG. 9 is a schematic diagram of another example, showing the extended MPT generated by the control information generating unit 214 and the extended application service descriptor configured by the extended application service descriptor and the control information analysis unit 309 from the extended application service descriptor. combination.
  • Part (A-1) of FIG. 9 shows, as an example, that the control information generating unit 214 generates the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902- 2 extension of MPT901.
  • part (A-2) of FIG. 9 shows, as an example, the control information analysis unit 309 as a desired extended application service descriptor to acquire the extended application service descriptor (AS- 1) 902-1.
  • Reference numeral 901 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 902-1 and 902-2 indicate two extended application service descriptors configured by the control information generating unit 214 in the extended MPT.
  • the broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT 901 configured with the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 in the broadcast signal, Then, it is transmitted to the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor included in the control information included in the received broadcast signal, and obtains the extended application service descriptor that satisfies the conditions as a desired extended application service descriptor.
  • Part (A-2) of FIG. 9 shows that the control information analysis unit 309 analyzes the extended MPT901, and analyzes the two extended application service descriptors 902-1 and 902-2 as configured in the The sequence of the data area of the data of the configuration descriptor shown in 402 in FIG. 4 is analyzed, and based on the result, the extended application service descriptor (AS-1) 902-1 is obtained as the expected extended application service descriptor. example. .
  • the control information analysis unit 309 may set the value of the application_format field set in the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 to "0x1
  • the extended application service descriptor (AS-1) 902-1 configured in the first extended application service descriptor is determined to be the desired extended application service descriptor, or the value set in the document_resolution field may be set to Among the extended application service descriptors of "0001”
  • the first extended application service descriptor (AS-1) 902-1 is determined to be the desired extended application service descriptor, or it may be set in the application_format field.
  • the extended application service descriptor (AS-1) 902-1 determined as the desired extended application service in the extended application service descriptor whose value is "0x1" and set in the document_resolution field value is "0001" Descriptor.
  • the order of the extended application service descriptors to be determined by the control information analysis unit 309 in the extended MPT may not be the first, but the last.
  • the control information analysis unit 309 may set the value of the application_format field set in the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 to "0x1" and
  • the extended application service descriptor (AS-1) 902-1 set in the extended application service descriptor whose value of the document_resolution field is "0001" is determined as a desired extended application service descriptor.
  • part (B-1) of FIG. 9 shows that the control information generating unit 214 generates the extended application service descriptor (AS-1) 912-1 and the extended application service descriptor (AS-2) 912. -2 expansion of MPT 911.
  • part (B-2) of FIG. 9 shows that the control information analysis unit 309 makes a desired extended application service descriptor to obtain the extended application service descriptor (AS-2) 912 configured in the received extended MPT911. -2.
  • Reference numeral 911 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 912-1 and 912-2 indicate that the control information generating unit 214 configures two extended application service descriptors in the extended MPT.
  • the broadcast signal transmitting apparatus 100 multiplexes control information in the extended MPT 911 including the extended application service descriptor (AS-1) 912-1 and the extended application service descriptor (AS-2) 912-2 in the broadcast signal. And sends it to the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 analyzes the extended MPT and the extended application service descriptor in the control information included in the received broadcast signal, and obtains the extended application service descriptor that satisfies the condition as a desired extended application service descriptor.
  • Part (B-2) of FIG. 9 is used as an example to indicate that the control information analysis unit 309 analyzes the extended MPT911 and analyzes the two extended application service descriptors 912-1 and 912- 2 It is performed in the order of the data area where the data of the configuration descriptor shown in 402 of FIG. 4 is arranged, and the result of the analysis is used as the expected extended application service descriptor to obtain the extended application service descriptor (AS-2). 912-2.
  • control information analysis unit 309 may set the value of the application_format field set in the extended application service descriptor (AS-1) 812-1 and the extended application service descriptor (AS-2) 812-2 to " "0x1" extended application service descriptor, which is placed in the first extended application service descriptor (AS-2) 812-2, is determined to be a desired extended application service descriptor.
  • Part (C-1) of FIG. 9 shows, as another example, that the control information generating unit 214 generates the extended application service descriptor (AS-1) 922-1 and the extended application service descriptor (AS-2) 922. -2 expansion of MPT921.
  • part (C-2) of FIG. 9 shows that the control information analysis unit 309 has not acquired the extended application service descriptor (AS-1) 922-1, the extended application service descriptor (AS-1) configured in the received extended MPT ( Any of AS-2) 922-2 is an example of a desired extended application service descriptor.
  • Reference numeral 921 denotes an extended MPT generated by the control information generating unit 214.
  • Reference numerals 922-1 and 922-2 represent extended application service descriptors configured by the control information generating unit 214 in the extended MPT.
  • the broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT921 including the extended application service descriptor (AS-1) 922-1 and the extended application service descriptor (AS-2) 922-2 in the broadcast signal. And sends it to the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 acquires the extended application service descriptor (AS-1) 922-1 or the extended application service descriptor included in the extended MPT 921 Any one of (AS-2) 922-2 serves as a desired extended application service descriptor.
  • FIG. 9 (C-2) shows an example where the control information analysis unit 309 analyzes the extended MPT and does not obtain any of the two extended application service descriptors configured as the expected extended application service descriptor. .
  • the example in part (C-2) of FIG. 9 indicates that the control information analysis unit 309 analyzes the extended MPT 921, and configures the two extended application service descriptors 922-1 and 922- 2 is performed in the order of the data area where the data of the configuration descriptor shown in 402 of FIG. 4 is arranged. According to the result, no extended application service descriptor is obtained as an example of the desired extended application service descriptor.
  • control information analysis unit 309 determines that it is the desired extended application service description And determine that the extended application service descriptor having a combination of other setting values is not the expected extended application service descriptor.
  • control information generating unit 214 can arbitrarily determine its configuration order.
  • the extended application service descriptor "0x1" (ARIB-HTML5) set as the description value of the application_format field described in Non-Patent Document 2 may be placed at the top of the descriptor data placement area 402.
  • extended application service descriptors in this order, it is possible to reliably provide data content services in a broadcast signal receiving device that only supports ARIB-HTML5 as an application symbolization method.
  • only one extended application service descriptor of "0x1" (ARIB-HTML5), which is a value described in the application_format field described in Non-Patent Document 2
  • only one extended application service descriptor with "0x1" (ARIB-HTML5) set may be placed at the head of the descriptor data arrangement area 402.
  • the number and order of the configuration of the extended application service descriptor are determined according to the value set in the application_format field, that is, the number and order of the configuration are determined according to the value of the specific field.
  • the data content service can be applied to various corresponding capabilities each of the broadcast signal receiving device, and can provide extended MPT and extended application service descriptors.
  • the present application can also be applied to the case where the claims are expressed as control logic, the case where the claims are expressed as a program containing instructions for causing a computer to run, and the case where the claims are expressed as a computer-readable recording medium having the instructions described therein. Device.
  • the names and terms used are not limited, and as long as they have substantially the same content and the same subject matter, they are included in the present application even if they are expressed in other ways.

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Abstract

本申请提供了广播信号的收发方法及装置。发送侧包括，设定包含在广播信号中的控制信息，其中，控制信息包含用于设定应用功能的条目信息的第二控制信息以及配置有一个以上的第二控制信息的第一控制信息；发送包含控制信息的广播信号；接收侧用于接收广播信号；从包含在广播信号中的控制信息分析第一控制信息以及第二控制信息，并从一个以上的第二控制信息的任一个中获取所期望的第二控制信息；以及使用所期望的第二控制信息的条目信息而控制应用功能。广播信号以MMT/TLV方式复用广播节目的视频信号和音频信号和给上述广播节目的控制信息赋予的应用功能，以提供与数据内容服务的高功能化相对应的MPT及应用业务描述符。

Description

广播信号的收发方法及装置
本申请要求在2018年7月12日提交日本专利局、申请号为2018-132493、2018-132494、2018-132495、2018-132496、2018-132497、2018-132498的六件日本专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉广播领域，尤其涉及广播信号的收发方法及装置。
背景技术
先进BS数字广播及先进宽带CS数字广播中的多媒体服务是指字幕服务、文字叠加服务、数据内容服务的总称，并按照非专利文献1及非专利文献2的操作规则来执行。
数据内容服务作为多媒体服务之一，是在基于视频/音频的广播服务的基础上同时提供HTML等的应用功能的广播服务之一。
数据内容服务通过在作为包含在广播信号中的控制信息之一的MPEG媒体传输数据包表(MPT，MMT Package Table)中配置应用业务描述符，来表示针对该广播信号的节目附加数据内容服务的情况，应用业务描述符为用于描述服务相关的应用的条目(entry)信息等的描述符。
(现有技术文献)
(非专利文献)
非专利文献1：“基于数字广播中的MMT的媒体传输方式标准规格”ARIB STD-B60 1.12版2018年4月12日修订，一般社团法人电波产业会
非专利文献2：“先进宽带卫星数字广播操作规则技术资料”ARIB TR-B39 1.7版2018年4月12日修订，一般社团法人电波产业会
在非专利文献2中，在数据内容服务所带的广播服务的MPT的MPT描述符区域中，必须仅配置一个应用业务描述符。
然而，在将来的如下情况，即，在执行了作为应用业务描述符的字段(field)之一的应用格式的版本升级等的数据内容服务的高功能化的情况下，为了提供与电视接收装置的能力相应的数据内容服务，可以考虑在MPT的MPT描述符区域配置多个应用业务描述符。
发明内容
本申请的实施方式的广播信号的收发方法及装置的目的在于，提供与数据内容服务的高功能化相对应的MPT、应用业务描述符。
第一方面，本申请实施例提供了一种广播信号的发送方法，包括：设定包含在所述广播信号中的所述控制信息，其中，所述控制信息包含用于设定所述应用功能的条目信息的第二控制信息以及配置有一个以上的所述第二控制信息的第一控制信息；发送包含所述控制信息的所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用 功能进行多路复用而形成。
第二方面，本申请实施例提供了一种广播信号的发送装置，包括：设定单元，用于设定包含在所述广播信号中的所述控制信息，所述控制信息包含用于设定所述应用功能的条目信息的第二控制信息以及配置有一个以上的所述第二控制信息的第一控制信息；发送单元，用于发送包含所述控制信息的所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成。
第三方面，本申请实施例提供了一种广播信号的接收方法，包括：接收所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；从包含在所述广播信号中的所述控制信息分析所述第一控制信息以及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及使用所述所期望的第二控制信息的条目信息而控制所述应用功能。
第四方面，本申请实施例提供了一种广播信号的接收装置，包括：接收单元，用于接收所述广播信号，其中广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；分析单元，从包含在所述广播信号中的所述控制信息分析所述第一控制信息及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及控制单元，使用所述所期望的第二控制信息的条目信息而控制所述应用功能。
第五方面，本申请实施例提供了一种广播信号的收发方法，发送侧的步骤包括：设定包含在所述广播信号中的所述控制信息，其中，所述控制信息包含用于设定所述应用功能的条目信息的第二控制信息以及配置有一个以上的所述第二控制信息的第一控制信息；发送包含所述控制信息的所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；接收侧的步骤包括：接收所述广播信号；从包含在所述广播信号中的所述控制信息分析所述第一控制信息以及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及使用所述所期望的第二控制信息的条目信息而控制所述应用功能。
第六方面，本申请实施例提供了一种广播信号的收发装置，发送侧，包括：设定单元，用于设定包含在所述广播信号中的所述控制信息，所述控制信息包含用于设定所述应用功能的条目信息的第二控制信息以及配置有一个以上的所述第二控制信息的第一控制信息；发送单元，用于发送包含所述控制信息的所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；接收侧，包括：接收单元，用于接收所述广播信号，其中，广播信号为以MMT/TLV方式将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行了多路复用而形成的；分析单元，从包含在所述广播信号中的所述控制信息分析所述第一控制信息及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及控制单元，使 用所述所期望的第二控制信息的条目信息而控制所述应用功能。
可选的，在前述各方面中，所述控制信息为TLV数据分组或MMT的控制信息。
可选的，在前述各方面中，所述第一控制信息为MPT。
可选的，在前述各方面中，所述第二控制信息为应用业务描述符。
可选的，在前述各方面的所述分析步骤中，根据配置在所述第一控制信息中的所述第二控制信息的顺序来确定所述所期望的第二控制信息。
可选的，从包含在所述广播信号中的所述控制信息分析所述第一控制信息以及所述第二控制信息，包括：从包含在所述广播信号中的所述控制信息分析出所述第一控制信息；根据配置在所述第一控制信息中的所述第二控制信息的顺序来确定所述所期望的第二控制信息。
可选的，在前述各方面中，从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息，包括：根据所述应用业务描述符的application_format字段的值来确定所述所期望的第二控制信息。
可选的，在前述各方面中，从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息，包括：根据所述应用业务描述符的document_resolution字段的值来确定所述所期望的第二控制信息。
可选的，在前述各方面的接收装置中，所述分析单元根据配置在所述第一控制信息中的所述第二控制信息的顺序来确定所述所期望的第二控制信息。
可选的，在前述各方面的接收装置中，所述分析单元根据所述应用业务描述符的application_format字段的值来确定所述所期望的第二控制信息。
可选的，在前述各方面的接收装置中，所述分析单元根据所述应用业务描述符的document_resolution字段的值来确定所述所期望的第二控制信息。
附图说明
图1为示出本发明的实施方式的广播信号发送装置、内容服务器、广播信号接收装置、通信网络系统的整体结构的示意图；
图2为简要示出广播信号发送装置的结构的示意图；
图3为简要示出广播信号接收装置的结构的示意图；
图4为表示MPT的语法的示意图；
图5为表示应用业务描述符的语法的示意图；
图6A为示出在非专利文献1及非专利文献2中所规定的应用业务描述符的application_format字段所规定的可设定的值、以及document_resolution字段所规定的可设定的值的列表。
图6B为示出扩展应用业务描述符的application_format字段可设定的值和document_resolution字段可设定的值的例子的列表；
图7为示出广播信号发送装置的控制信息生成单元所生成的扩展MPT以及配置在其中的扩展应用业务描述符与广播信号接收装置的控制信息分析单元从扩展MPT中获取的扩展应用业务描述符的组合的一个例子的示意图；
图8为示出广播信号发送装置的控制信息生成单元所生成的扩展MPT以及配置在其中的扩展应用业务描述符与广播信号接收装置的控制信息分析单元从扩展MPT中获取的扩展 应用业务描述符的组合的另一个例子的示意图；
图9为示出广播信号发送装置的控制信息生成单元所生成的扩展MPT以及配置在其中的扩展应用业务描述符与广播信号接收装置的控制信息分析单元从扩展MPT中获取的扩展应用业务描述符的组合的又一个例子的示意图。
具体实施方式
以下，参照附图说明实施方式。
图1为本申请的实施方式的广播信号发送装置(单元)100、服务器120、广播信号接收装置140、通信网络180系统的整体结构的示意图。
附图标记100为用于播送广播节目的广播信号发送装置(也称被为广播站)，其包括广播节目服务器101及第一基本功能102。广播信号发送装置100可以是将各广播公司的节目收集起来上行传输(uplink)到通信卫星150的地面站。
广播节目服务器101可以是用于事先保存广播站100所要播送的节目的数据、节目的名称、播送日期时间、内容的说明等的区域。广播节目服务器101还可以是用于保存从各广播公司发过来的节目等的数据的服务器。
第一基本功能102是广播站100的基本功能，其具有对所要播送的节目的视频数据、音频数据等进行符号化(符号化被称为编码(encode))，并且将含作为控制信息的信令信息(SI，Signaling Information)信号多路复用(multiplex)而作为广播信号发送的功能。作为控制信息的信令信息信号为类型-长度-值(TLV，Type Length Value)数据分组(packet)(也被称为TLV数据包)或MPEG媒体传输(MMT，MPEG Media Transport)的控制信号。此外，广播信号的复用方式依据非专利文献1所记载的MMT/TLV方式。
内容服务器120用于进行数据内容服务。广播信号接收装置140基于包含在广播信号中的MH-AIT(MH-Application Information Table)等的信令信息，为了执行数据内容服务而访问内容服务器120，并下载所需内容。
用户的广播信号接收装置140，可以被称为电视接收装置，包括第二基本功能141以及控制单元142。此外，广播信号接收装置140可通过用于与外围设备相连接的接口(I/F)来与显示单元160、硬盘驱动器(HDD，Hard Disk Drive)162等相连接。
第二基本功能141是用于实现电视接收装置的基本功能，其具有接收从广播站100发过来的广播信号，分离包含在广播信号中的符号化的视频信号(也称为视频流)、符号化的音频信号(也称为音频流)、字幕数据及信令信息信号，对视频信号以及音频信号进行解码、接收字幕数据、对信令信息信号进行分析等功能。
控制单元142用于控制广播信号接收装置140的整体动作。此外，控制单元142还进行如下管理：与连接在广播信号接收装置140的外围设备、例如显示单元160、扬声器161等的连接以及数据的收发的管理、与绑定在广播信号接收装置140的硬盘驱动器(HDD，Hard Disk Drive)162的连接以及数据的收发的管理。
显示单元160用于显示包含在利用第二基本功能141所接收的广播信号中的视频。显示单元160还可以内置有扬声器161，上述扬声器161用于输出包含在利用第二基本功能141所接收的广播信号中的声音。此外，内置于显示单元160的扬声器161也可以是连接在通用串行总线(USB)等的接口的外部扬声器。
在图1的所示出的例子中，显示单元160与广播信号接收装置140相互独立，但是其 也可作为广播信号接收装置140的一个功能与广播信号接收装置140形成为一体。
图2为简要示出广播信号发送装置100的结构的示意图。为了将存储在广播节目服务器101的广播节目以广播信号发送，广播信号发送装置100对节目的视频数据、音频数据等进行符号化而作为广播信号发送。
数据广播编码器210用于对存储在广播节目服务器101的节目的数据广播用数据编码。如果从广播节目服务器101读取到广播节目，则数据广播编码器210对所读取的节目的数据广播用数据进行编码。
视频编码器211是用于对存储在广播节目服务器101的节目的视频数据编码的视频编码器。如果从广播节目服务器101读取到广播节目，则视频编码器211对所读取的节目的视频数据进行编码。
音频编码器212是用于对存储在广播节目服务器101的节目的音频数据编码的音频编码器。如果从广播节目服务器101读取到广播节目，则音频编码器212对所读取的节目的音频数据进行编码。
字幕编码器213是用于对存储在广播节目服务器101的节目的字幕数据编码的字幕编码器。如果从广播节目服务器101读取到广播节目，则字幕编码器213对所读取的节目的字幕数据进行编码。
控制信息生成单元214用于生成TLV数据分组(package)及MMT的控制信息。如非专利文献2所述，TLV数据分组的控制信号为与IP数据包(IP packet)的复用有关的控制信息(也称为TLV-SI)，提供用于选台的信息、IP地址和服务的对应信息。此外，MMT的控制信息为与MMT的数据包的结构、广播服务有关的控制信息(也称为MMT-SI)。控制信息生成单元生成包括与作为视频编码器211、音频编码器212、字幕编码器213的编码对象的节目有关的控制信息的TLV数据分组以及MMT的控制信息的信号。
扰码器(scrambler)215与CAS模块216协作，用于对从数据广播编码器210输出的编码后数据广播用数据、从视频编码器211输出的编码后视频数据、从音频编码器212输出的编码后音频数据、或从输出的字幕编码器213编码后字幕数据进行加扰(scramble)。CAS模块216用于生成干扰器215在进行加扰时所使用的密钥。
多路复用器(multiplexer)217用于以MMT/TLV方式将数据广播编码器210对数据广播用数据进行编码而生成的数据广播流、由视频编码器211对视频数据进行编码而生成的视频流、由音频编码器212对音频数据进行编码而生成的音频流、由字幕编码器213对字幕数据进行编码而生成的字幕流、由控制信息生成单元214所生成的控制信息进行多路复用(multiplexing)。多路复用器217生成将视频流、音频流、字幕流、TLV数据分组以及MMT的控制信息进行了多路复用的的TLV流。
发送单元218用于发送广播信号。发送单元218对多路复用器217所生成的TLV流进行16APSK等的调制、纠错编码等的信道编码处理进而实现广播信号发送。
图3为简要示出广播信号接收装置140的结构的示意图。
广播信号接收装置140包括用于实现广播信号接收功能的第二基本功能141以及控制单元142。
第二基本功能141包括广播调谐器(Tuner)301、解复用器(demultiplexer)302、解扰码器(descrambler)303、CAS模块304、数据广播引擎305、视频解码器306、音频 解码器307、字幕解码器308、控制信息分析单元309、图形用户界面(GUI)320。
广播调谐器301用于接收作为广播信号发送的TLV流。广播调谐器301所接收的广播信号被输入到解复用器302。
解复用器302用于将复用的TLV流分离为视频流、音频流、数据广播流、字幕流、控制信息。解复用器302还用于分别将分离的视频流、音频流、数据广播流、字幕流输入到解扰码器303、并将作为控制信息的信令信息信号输入到控制信息分析单元309。
解扰码器303与CAS模块304协作对所输入的视频流、音频流、数据广播流、字幕流进行解扰(descramble)。解扰码器303分别将解扰后的视频流输入到视频解码器306，将解扰后的音频流输入到音频解码器307，将解扰后的数据广播流输入到数据广播引擎305、将解扰后的字幕流输入到字幕解码器308。
CAS模块304生成解扰码器303在进行解扰时所使用的密钥。
数据广播引擎305用于接收并处理数据广播流，并将处理结果发送到合成器326。发送到合成器326的数据广播用数据与视频数据等被合成并被显示在显示单元160。
视频解码器306用于对接到收的视频流进行解码，并生成用于在显示单元160上显示的信号。
音频解码器307用于对接到收的音频流进行解码，并生成向扬声器161输出的信号。
字幕解码器308用于对接到收的字幕流进行解码，并生成用于在显示单元160显示的信号。
经解码的视频信号、字幕信号及数据广播用信号由合成器326合成，并被输出到显示单元160。此外，经解码的音频信号则被输出到扬声器161。
控制信息分析单元309用于对作为广播信号的控制信息的信令信息信号进行分析，然后将其分析结果发送到控制单元142。
控制单元142用于对广播信号接收装置140的整体动作进行控制。控制单元142还用于对作为与通信网络的接口的网络接口331及作为与外部设备的连接接口的外部输入接口332进行控制。
如上所述，依据非专利文献2规定，在进行针对基于视频/音频的广播服务的同时提供HTML等应用功能的数据内容服务时，必须为作为信令信息信号之一的MPT(MMT Package Table)配置一个应用业务描述符(应用业务描述符也被称为应用服务描述符)。
图4为表示MPT的语法(syntax)的示意图。
附图标记401所示的asset_descriptors_length字段表示附图标记402所示区域的大小(size)。
附图标记402所示的for(j＝0；j<M；j++){asset_descriptors_byte}字段为描述符的数据被配置的数据区域。在数据区域可配置j＝0到M-1为止的M(M为整数)个描述符。
依据非专利文献2规定，广播信号发送装置要在进行针对基于视频/音频的广播服务同时提供HTML等的应用功能的数据内容服务时，其仅能在MPT的数据区域402配置一个作为广播信号发送的应用业务描述符。
在广播信号接收装置100识别出了包含在所接收的广播信号中所配置的MPT的应用业务描述符的情况下，广播信号接收装置100能够识别出送过来的广播信号中同时提供有HTML等的应用功能。
然而，能够想到如下情况：在进行了数据内容服务的高功能化的情况下，数据内容服务中存在各种版本，而且对广播信号接收装置的数据内容服务的各版本的对应能力也各不相同。
于是，本申请的实施方式的广播信号的发送、接收方法及装置，具有生成及分析对应于数据内容服务的高功能化的、扩展应用业务描述符的功能。此外，本申请的实施方式的广播信号的发送、接收方法及装置，具有生成及分析可在MPT中配置多个扩展应用业务描述符的扩展MPT的功能。
图5为表示应用业务描述符的语法的示意图。
附图标记501所示的application_format表示在数据内容服务中所使用的应用符号化方式。
附图标记502所示的document_resolution表示数据内容的解析度(resolution)，解析度也可被称为解像度。
图6A示出了由非专利文献1及非专利文献2中所规定的应用业务描述符的application_format字段可设定值以及document_resolution的可设定值列表。application_format字段中的可设定值仅为“0x1”(ARIB-HTML5)，document_resolution字段的可设定值为“0000”(1920x1080)、“0001”(3840x2160)或“0010”(7680x4320)。
图6B示出了扩展应用业务描述符的application_format字段和document_resolution字段中可设定的值的一个例子的列表。
如图6B所示，在扩展应用业务描述符的application_format字段中，可设定的值的例子为，为应用业务描述符的application_format字段中所规定的可设定的值添加例如“0x2”(HTML-A)、“0x3”(HTML-B)的例子。其中，其中，HTML-A及HTML-B为相对于作为目前非专利文献1及非专利文献2所规定的应用符号化方式的HTML-5而新规定的应用符号化方式。
此外，在扩展应用业务描述符的document_resolution字段中可设定的值的例子为，为应用业务描述符的document_resolution字段中所规定的可设定的值添加例如0011(11520x6480)的例子。
如此，相对于应用业务描述符，扩展应用业务描述符为在application_format字段中扩展了可设定的值、或者是在document_resolution字段中扩展了可设定的值。关于扩展应用业务描述符，也可以是相对于应用业务描述符，针对application_format字段或document_resolution字段以外的其他字段扩展可设定的值。
此外，扩展MPT为针对MPT在图4的附图标记402所示的描述符的数据配置区域中配置图6B中所定义的扩展应用业务描述符的数量不限定为一个，而是扩展为多个。
如此，本申请的实施方式的广播信号的发送、接收方法及装置具有生成并分析扩展应用业务描述符及扩展MPT的功能，由此，能够对应于数据内容服务的高功能化(例如，对应于新的(更加高级/先进的)服务的接收装置能够应对新的(更加高级/先进的)，仅对应于传统服务的接收装置对应于传统的服务)。
以下，示出本申请的实施方式中广播信号的发送、接收方法及装置生成的扩展应用业务描述符及扩展MPT的具体的例子、以及分析的扩展应用业务描述符及扩展MPT的具体的例子。
图7为示出控制信息生成单元214所生成的扩展MPT及配置在其中的扩展应用业务描述符与控制信息分析单元309从所述扩展MPT中获取的扩展应用业务描述符的组合的一个例子的示意图。
图7的(A-1)部分示出了控制信息生成单元214生成配置有一个扩展应用业务描述符(AS-1)702的扩展MPT701的例子。
此外，图7的(A-2)部分示出了控制信息分析单元309作为所期望的扩展应用业务描述符来获得配置在所接收的扩展MPT 701中的扩展应用业务描述符(AS-1)702的例子。
附图标记701表示控制信息生成单元214所生成的扩展MPT。
附图标记702表示控制信息生成单元214在扩展MPT中配置的扩展应用业务描述符。括号内的两个数值中左侧的数值703-1表示控制信息生成单元214在扩展应用业务描述符的application_format字段中所设定的值“0x1”，右侧的数值703-2表示控制信息生成单元214在扩展应用业务描述符的document_resolution字段中所设定的值“0001”。此外，括号内的两个数值的含义在下面的扩展应用业务描述符的说明中也相同。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)702的扩展MPT701的控制信息在广播信号中多路复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在其所接收到的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图7的(A-2)部分作为一个例子，用于表示控制信息分析单元309对扩展MPT701进行分析，并对所配置的扩展应用业务描述符(AS-1)702的各字段的值进行分析，并依据其结果，获取了扩展应用业务描述符(AS-1)702作为所期望的扩展应用业务描述符的例子。
控制信息分析单元309可进行如下判定：例如，可以通过对设定在扩展应用业务描述符(AS-1)702中的application_format字段的值进行判定来判定所期望的扩展应用业务描述符，或者，也可以通过对设定在document_resolution字段的值进行判定来判定所期望的扩展应用业务描述符，或者，也可以通过对设定在application_format字段的值以及设定在document_resolution字段的值进行判定来判定所期望的扩展应用服务的描述符。
具体地，例如，在扩展应用业务描述符(AS-1)702的application_format字段的值为“0x1”的情况下，控制信息分析单元309可以将其判定为所期望的扩展应用业务描述符，或者，在document_resolution字段的值为“0001”的情况下，控制信息分析单元309也可以将其判定为所期望的扩展应用业务描述符，或者，在application_format字段的值为“0x1”且document_resolution字段的值为“0001”的情况下，控制信息分析单元309也可以将其判定为所期望的扩展应用业务描述符。
图7的(B-1)部分示出了控制信息生成单元214生成配置有一个扩展应用业务描述符(AS-1)712的扩展MPT711的另一个例子。
此外，图7的(B-2)部分示出了控制信息分析单元309未获取配置在所接收的扩展MPT711中的扩展应用业务描述符(AS-1)712作为所期望的扩展应用业务描述符的例子。
附图标记711表示控制信息生成单元214所生成的扩展MPT。
附图标记712表示控制信息生成单元214在扩展MPT中配置的扩展应用业务描述符。
广播的控制信息在广播信号中多路复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在所接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图7的(B-2)部分示出了控制信息分析单元309对扩展MPT711进行分析，并对所配置的扩展应用业务描述符(AS-1)712的各字段的值进行了分析，并依据其结果，未获取扩展应用业务描述符(AS-1)712作为所期望的扩展应用业务描述符的例子。
控制信息分析单元309可进行如下判定：例如，可以通过对设定在扩展应用业务描述符(AS-1)712的application_format字段的值进行判定而判定为不是所期望的扩展应用业务描述符。
具体地，例如，在扩展应用业务描述符(AS-1)的application_format字段的值为“0x1”以外的情况下，控制信息分析单元309可以将其判定为不是所期望的扩展应用业务描述符，或者，在document_resolution字段的值为“0000”以外的情况下，控制信息分析单元309也可以将其判定为不是所期望的扩展应用业务描述符，或者，在application_format字段的值为“0x1”且设定在document_resolution字段的值为“0000”的组合以外的情况下，控制信息分析单元309也可以将其判定为不是所期望的扩展应用业务描述符。
如果将扩展应用业务描述符(AS-1)712被判定为不是所期望的扩展应用业务描述符，那么控制信息分析单元309判定所接收的广播信号中所包含的扩展MPT中没有配置有扩展应用业务描述符。即，广播信号接收装置140可判定为所接收的广播信号中未提供有数据内容服务。
图8为控制信息生成单元214所生成的扩展MPT及配置于其中的扩展应用业务描述符与控制信息分析单元309从扩展MPT中获取的扩展应用业务描述符的组合的另一个例子的示意图。
图8的(A-1)部分为控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)802-1与扩展应用业务描述符(AS-2)802-2的扩展MPT801的例子。
此外，图8的(A-2)部分为控制信息分析单元309获取配置在所接收的扩展MPT801中的扩展应用业务描述符(AS-1)802-1作为所期望的扩展应用业务描述符的例子。
附图标记801表示控制信息生成单元214所生成的扩展MPT。
附图标记802-1、802-2表示控制信息生成单元214在扩展MPT中配置的两个扩展应用业务描述符。括号内的两个数值与图7的情况相同。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)802-1及扩展应用业务描述符(AS-2)802-2的扩展MPT801的控制信息在广播信号中多路复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在所接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图8的(A-2)示出了控制信息分析单元309对扩展MPT801进行分析，并对所配置的 两个扩展应用业务描述符802-1、扩展应用业务描述符802-2按照配置在图4的402所示的配置描述符的数据的数据区域的顺序进行分析，并依据其结果，，来获取扩展应用业务描述符(AS-1)802-1作为所期望的扩展应用业务描述符的例子。
控制信息分析单元309可采用如下方式实现判定：例如，可以通过对设定在扩展应用业务描述符(AS-1)802-1、扩展应用业务描述符(AS-2)802-2中的application_format字段的值进行判定，从而判定为所期望的扩展应用业务描述符，或者，也可以通过对设定在document_resolution字段的值进行判定，从而判定为所期望的扩展应用业务描述符，或者，也可以通过对设定在application_format字段的值以及设定在document_resolution字段的值进行判定，从而判定为所期望的扩展应用业务描述符。
此外，控制信息分析单元309还可以在获取所期望的扩展应用业务描述符时，判定配置在扩展MPT801中的扩展应用业务描述符(AS-1)802-1、扩展应用业务描述符(AS-2)802-2的配置顺序。
具体地，例如，控制信息分析单元309可以将设定在扩展应用业务描述符(AS-1)802-1、扩展应用业务描述符(AS-2)802-2的application_format字段的值为“0x1”的扩展应用业务描述符中最先配置的扩展应用业务描述符(AS-1)802-1判定为所期望的扩展应用业务描述符，或者，也可以将设定在document_resolution字段的值为“0001”的扩展应用业务描述符中的最先配置的扩展应用业务描述符(AS-1)802-1判定为所期望的扩展应用业务描述符、或者，也可以将设定在application_format字段的值为“0x1”且设定在document_resolution字段的值为“0001”的扩展应用业务描述符中最先配置的扩展应用业务描述符(AS-1)802-1判定为所期望的扩展应用业务描述符。
控制信息分析单元309所要判定的配置在扩展MPT中的扩展应用业务描述符的顺序也可以不是在最先配置，而是在最后配置。例如，控制信息分析单元309将设定在扩展应用业务描述符(AS-1)802-1、扩展应用业务描述符(AS-2)802-2的application_format字段的值为“0x1”且设定在document_resolution字段的值为“0001”的扩展应用业务描述符中最后配置的扩展应用业务描述符(AS-1)802-1判定为所期望的扩展应用业务描述符。
图8的(B-1)部分示出了控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)812-1及扩展应用业务描述符(AS-2)812-2的扩展MPT811的另一个例子。
此外，图8的(B-2)部分示出了控制信息分析单元309获取配置在所接收的扩展MPT811中的扩展应用业务描述符(AS-2)812-2作为所期望的扩展应用业务描述符的例子。
附图标记811表示控制信息生成单元214所生成的扩展MPT。
附图标记812-1、812-2表示控制信息生成单元214在扩展MPT中配置的两个扩展应用业务描述符。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)812-1及扩展应用业务描述符(AS-2)812-2的扩展MPT811中的控制信息在广播信号中复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在所接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图8的(B-2)部分所示的例子，用于表示控制信息分析单元309对扩展MPT811进行分析，并将所配置的两个扩展应用业务描述符812-1、扩展应用业务描述符812-2按照配置有图4的402所示的配置描述符的数据的数据区域的顺序进行分析，并根据其结果，获取了扩展应用业务描述符(AS-2)812-2作为所期望的扩展应用业务描述符的情况的例子。
具体地，例如，控制信息分析单元309可以将设定在扩展应用业务描述符(AS-1)812-1、扩展应用业务描述符(AS-2)812-2中的document_resolution字段的值为“0001”的扩展应用业务描述符中配置于最先的扩展应用业务描述符(AS-2)812-2判定为所期望的扩展应用业务描述符。
图8的(C-1)部分示出了控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)822-1及扩展应用业务描述符(AS-2)822-2的扩展MPT821的另一个例子。
此外，图8的(C-2)部示出了控制信息分析单元309未获取配置在所接收的扩展MPT821中的扩展应用业务描述符(AS-1)822-1、扩展应用业务描述符(AS-2)822-2中的任一个作为所期望的扩展应用业务描述符的一个例子。
附图标记821表示控制信息生成单元214所生成的扩展MPT。
附图标记822-1、822-2表示控制信息生成单元214在扩展MPT中配置的扩展应用业务描述符。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)822-1及扩展应用业务描述符(AS-2)822-2的扩展MPT821的控制信息在广播信号中多路复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在所接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并将满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符来获取。
图8的(C-2)部分示出了控制信息分析单元309对扩展MPT821进行分析，并将配置在扩展MPT821中的两个扩展应用业务描述符822-1、822-2按照配置有图4的402所示的配置描述符的数据的数据区域的顺序进行分析，并根据结果，未获取任一扩展应用业务描述符作为所期望的扩展应用业务描述符的例子。
具体地，例如，在扩展应用业务描述符的application_format字段设定有“0x1”且在document_resolution字段设定有“0000”的情况下，控制信息分析单元309将其判定为所期望的扩展应用业务描述符，而且将具有除此之外的设定值的组合的扩展应用业务描述符判定为不是所期望的扩展应用业务描述符。
如此，在扩展MPT中配置有多个扩展应用业务描述符时，控制信息分析单元309按照配置有图4的402所示的配置描述符的数据的数据区域的顺序进行分析，并反复分析直至符合预定条件的扩展应用业务描述符出现为止，从而能够获取所期望的扩展应用业务描述符。
图8示出了扩展MPT中所要配置的多个扩展应用业务描述符的document_resolution字段的值不同的例子，然而，扩展MPT中所要配置的多个扩展应用业务描述符的application_format字段的值也可不同。
图9为另一个例子的示意图，示出了控制信息生成单元214所生成的扩展MPT及配置于其中的扩展应用业务描述符与控制信息分析单元309从扩展MPT中获取的扩展应用业务 描述符的组合。
图9的(A-1)部分作为一个例子，示出了控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)902-1及扩展应用业务描述符(AS-2)902-2的扩展MPT901。
此外，图9的(A-2)部分作为一个例子，示出了控制信息分析单元309作为所期望的扩展应用业务描述符来获取配置在所接收的扩展MPT901的扩展应用业务描述符(AS-1)902-1。
附图标记901表示控制信息生成单元214所生成的扩展MPT。
附图标记902-1、902-2表示控制信息生成单元214在扩展MPT中配置的两个扩展应用业务描述符。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)902-1及扩展应用业务描述符(AS-2)902-2的扩展MPT 901的控制信息在广播信号中复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图9的(A-2)部分示出了控制信息分析单元309对扩展MPT901进行分析，并对所配置的两个扩展应用业务描述符902-1、扩展应用业务描述符902-2按照配置在图4的402所示的配置描述符的数据的数据区域的顺序进行分析，并且根据其结果，获取了扩展应用业务描述符(AS-1)902-1作为所期望的扩展应用业务描述符的例子。。
具体地，例如，控制信息分析单元309可以将设定在扩展应用业务描述符(AS-1)902-1、扩展应用业务描述符(AS-2)902-2的application_format字段的值为“0x1”的扩展应用业务描述符中配置于最先的扩展应用业务描述符(AS-1)902-1判定为所期望的扩展应用业务描述符，或者，也可以将设定在document_resolution字段的值为“0001”的扩展应用业务描述符中配置于最先的扩展应用业务描述符(AS-1)902-1判定为所期望的扩展应用业务描述符，或者，也可以将设定在application_format字段的值为“0x1”且设定在document_resolution字段的值为“0001”的扩展应用业务描述符中配置于最先的扩展应用业务描述符(AS-1)902-1判定为所期望的扩展应用业务描述符。
控制信息分析单元309所要判定的配置在扩展MPT的扩展应用业务描述符的顺序也可以不是最先，而是最后。例如，控制信息分析单元309也可以将设定在扩展应用业务描述符(AS-1)902-1、扩展应用业务描述符(AS-2)902-2的application_format字段的值为“0x1”且设定在document_resolution字段的值为“0001”的扩展应用业务描述符中最后配置的扩展应用业务描述符(AS-1)902-1判定为所期望的扩展应用业务描述符。
图9的(B-1)部分作为另一个例子，示出了控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)912-1及扩展应用业务描述符(AS-2)912-2的扩展动MPT 911。
此外，图9的(B-2)部分示出了控制信息分析单元309作所期望的扩展应用业务描述符来获取配置在所接收的扩展MPT911中的扩展应用业务描述符(AS-2)912-2。
附图标记911表示控制信息生成单元214所生成的扩展MPT。
附图标记912-1、912-2表示控制信息生成单元214在扩展MPT中配置两个扩展应用业务描述符。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)912-1及扩展应用业务描述符(AS-2)912-2的扩展MPT 911中的控制信息在广播信号中复用，并向广播信号接收装置140发送。
广播信号接收装置140对包含在所接收的广播信号中的控制信息中的扩展MPT及扩展应用业务描述符进行分析，并获取满足条件的扩展应用业务描述符作为所期望的扩展应用业务描述符。
图9的(B-2)部分作为一个例子，用于表示控制信息分析单元309对扩展MPT911进行分析，并将所配置的两个扩展应用业务描述符912-1、扩展应用业务描述符912-2按照配置有图4的402所示的配置描述符的数据的数据区域的顺序进行，并且将分析的结果，作为所期望的扩展应用业务描述符来获取扩展应用业务描述符(AS-2)912-2。
具体地，例如，控制信息分析单元309可以将设定在扩展应用业务描述符(AS-1)812-1、扩展应用业务描述符(AS-2)812-2中的application_format字段的值为“0x1”的扩展应用业务描述符中配置于最先的扩展应用业务描述符(AS-2)812-2判定为所期望的扩展应用业务描述符。
图9的(C-1)部分作为另一个例子，示出了控制信息生成单元214生成配置有扩展应用业务描述符(AS-1)922-1及扩展应用业务描述符(AS-2)922-2的扩展MPT921。
此外，图9的(C-2)部分示出了控制信息分析单元309未获取配置在所接收的扩展MPT中的扩展应用业务描述符(AS-1)922-1、扩展应用业务描述符(AS-2)922-2中的任一种作为所期望的扩展应用业务描述符来的例子。
附图标记921表示控制信息生成单元214所生成的扩展MPT。
附图标记922-1、922-2表示控制信息生成单元214在扩展MPT中配置的扩展应用业务描述符。
广播信号发送装置100将包含配置有扩展应用业务描述符(AS-1)922-1及扩展应用业务描述符(AS-2)922-2的扩展MPT921的控制信息在广播信号中多路复用，并向广播信号接收装置140发送。
对包含在所接收的广播信号的控制信息进行分析并满足条件时，广播信号接收装置140获取包含在扩展MPT 921中的扩展应用业务描述符(AS-1)922-1或扩展应用业务描述符(AS-2)922-2中的任一个作为所期望的扩展应用业务描述符。
图9(C-2)部分的例子表示控制信息分析单元309对扩展MPT进行分析，并未获取所配置的两个扩展应用业务描述符中的任一个作为所期望的扩展应用业务描述符的例子。
图9的(C-2)部分的例子表示控制信息分析单元309对扩展MPT 921进行分析，并将配置在扩展MPT921中的两个扩展应用业务描述符922-1、扩展应用业务描述符922-2按照配置有图4的402所示的配置描述符的数据的数据区域的顺序进行，根据其结果，未获取任一扩展应用业务描述符作为所期望的扩展应用业务描述符的例子。
具体地，例如，在扩展应用业务描述符的application_format字段设定有“0x1”且在document_resolution字段设定有“0000”的情况下，控制信息分析单元309将其判定为所期望的扩展应用业务描述符，而将具有除此之外的设定值的组合的扩展应用业务描述符判定为不是所期望的扩展应用业务描述符。
在扩展MPT中配置多个扩展应用业务描述符时，控制信息生成单元214可以任意地确 定其配置顺序。
例如，设定有作为在非专利文献2所记载的application_format字段的记载值的“0x1”(ARIB-HTML5)的扩展应用业务描述符也可以配置在描述符数据的配置区域402的最前。通过按此顺序配置扩展应用业务描述符，在作为应用符号化方式仅支持ARIB-HTML5的广播信号接收装置中能够可靠地提供数据内容服务。
此外，例如，设定有在作为非专利文献2所记载的application_format字段的记载值的“0x1”(ARIB-HTML5)的扩展应用业务描述符在描述符数据的配置区域402中仅配置一个也可。或者，设定有“0x1”(ARIB-HTML5)的扩展应用业务描述符在描述符数据的配置区域402的最前头仅配置一个也可。根据这种设定在application_format字段的值来决定扩展应用业务描述符的配置的数量、顺序，即根据特定的字段的值来决定配置的数量、顺序。由此，对于数据内容服务，能够适用于广播信号接收装置各自具有的各种对应能力，并且能够实现扩展MPT及及扩展应用业务描述符的提供。
虽然对本申请的一些实施方式进行了说明，但是实施方式是仅作为例子提出，并不旨在限定本申请的范围。这些新颖的实施方式能够以其他的多种方式实施，在不脱离本申请的主旨的范围内，可以进行各种省略、替换、变更。这些实施方式及其变形包含本申请的范围及主旨，并且包含权利要求书所记载的发明及其等同的范围。进而，在权利要求的各结构要素中，在将结构要素分割而表示的情况、或者将多个合并而表示的情况、或者通过组合这些来表示的情况也均落入本申请的范围。此外，将权利要求作为控制逻辑来表示的情况、作为含有使计算机运行的指令的程序来表示的情况、以及作为记载有上述指令的计算机可读记录介质来表示的情况也均能够适用本申请的装置。此外，所使用的名称及术语也不受限制，只要是实质上相同的内容、相同的主旨的话，即使以其他方式表示也均包括在本申请中。

Claims (14)

  1. 一种广播信号的收发方法，
    发送侧的步骤包括：
    设定包含在所述广播信号中的所述控制信息，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；
    发送包含所述控制信息的所述广播信号，其中，广播信号为以MMT/TLV方式将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行了多路复用而形成的；
    接收侧的步骤包括：
    接收所述广播信号；
    从包含在所述广播信号中的所述控制信息分析所述第一控制信息以及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及
    使用所述所期望的第二控制信息的条目信息而控制所述应用功能。
  2. 根据权利要求1所述的广播信号的收发方法，其中，
    所述控制信息为TLV数据分组或MMT的控制信息。
  3. 根据权利要求1所述的广播信号的收发方法，其中，从包含在所述广播信号中的所述控制信息分析所述第一控制信息以及所述第二控制信息，包括：
    从包含在所述广播信号中的所述控制信息分析出所述第一控制信息；
    根据配置在所述第一控制信息中的所述第二控制信息的顺序来确定所述所期望的第二控制信息。
  4. 根据权利要求1所述的广播信号的收发方法，其中，
    所述第一控制信息为MPT。
  5. 根据权利要求1所述的广播信号的收发方法，其中，
    所述第二控制信息为应用业务描述符。
  6. 根据权利要求1所述的广播信号的收发方法，其中，从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息，包括：
    根据所述应用业务描述符的application_format字段的值来确定所述所期望的第二控制信息。
  7. 根据权利要求1所述的广播信号的收发方法，其中，从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息，包括：
    根据所述应用业务描述符的document_resolution字段的值来确定所述所期望的第二控制信息。
  8. 一种广播信号的收发装置，
    发送侧，包括：
    设定单元，用于设定包含在所述广播信号中的所述控制信息，所述控制信息包含用于设定所述应用功能的条目信息的第二控制信息以及配置有一个以上的所述第二控 制信息的第一控制信息；
    发送单元，用于发送包含所述控制信息的所述广播信号，其中，广播信号为以动态图像专家组媒体传输MMT/类型-长度-值TLV方式，将广播节目的视频信号和音频信号与对所述广播节目的控制信息赋予的应用功能进行多路复用而形成；
    接收侧，包括：
    接收单元，用于接收所述广播信号；
    分析单元，从包含在所述广播信号中的所述控制信息分析所述第一控制信息及所述第二控制信息，并从一个以上的所述第二控制信息的任一个中获取所期望的第二控制信息；以及
    控制单元，使用所述所期望的第二控制信息的条目信息而控制所述应用功能。
  9. 根据权利要求8所述的广播信号的收发装置，其中，
    所述控制信息为TLV数据分组或MMT的控制信息。
  10. 根据权利要求8所述的广播信号的收发装置，其中，
    所述分析单元从包含在所述广播信号中的所述控制信息分析出所述第一控制信息；根据配置在所述第一控制信息中的所述第二控制信息的顺序来确定所述所期望的第二控制信息。
  11. 根据权利要求8所述的广播信号的收发装置，其中，
    所述第一控制信息为MPT。
  12. 根据权利要求8所述的广播信号的收发装置，其中，
    所述第二控制信息为应用业务描述符。
  13. 根据权利要求8所述的广播信号的收发装置，其中，
    所述分析单元根据所述应用业务描述符的application_format字段的值来确定所述所期望的第二控制信息。
  14. 根据权利要求8所述的广播信号的收发装置，其中，
    所述分析单元根据所述应用业务描述符的document_resolution字段的值来确定所述所期望的第二控制信息。
PCT/CN2019/095889 2018-07-12 2019-07-12 广播信号的收发方法及装置 WO2020011268A1 (zh)

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