WO2020011266A1

WO2020011266A1 - Broadcast signal transmission method and device

Info

Publication number: WO2020011266A1
Application number: PCT/CN2019/095887
Authority: WO
Inventors: 筒井幸彦
Original assignee: 青岛海信电器股份有限公司; 东芝视频解决方案株式会社
Priority date: 2018-07-12
Filing date: 2019-07-12
Publication date: 2020-01-16
Also published as: WO2020011268A1; CN112204904B; CN112204904A; WO2020011267A1

Abstract

The present application provides a broadcast signal transmission method and device. The method comprises: configuring control information comprised in a broadcast signal, wherein the control information comprises second control information for configuring entry information of an application function and first control information provided with one or more pieces of second control information; and transmitting the broadcast signal comprising the control information, wherein the broadcast signal is formed using an MMT/TLV (MPEG media transport/type-length-value) scheme by means of multiplexing video and audio signals of a broadcast program with an application function assigned to the control information of the broadcast program. The broadcast signal is formed using the MMT/TLV scheme by means of multiplexing the video and audio signals of the broadcast program with the application function assigned to the control information of the broadcast program, thereby providing an MPT (MMT package table) and an application service descriptor corresponding to highly functionalized data content services.

Description

Method and device for transmitting broadcast signal

This application claims the priority of six Japanese patent applications filed on July 12, 2018 with the Japanese Patent Office under the application numbers 2018-132493, 2018-132494, 2018-132495, 2018-132496, 2018-132497, and 2018-132498. , The entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of broadcasting, and in particular, to a method and a device for transmitting a broadcast signal.

Background technique

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, as one of the multimedia services, 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. In this case, the application service descriptor is a descriptor for describing entry information and the like of a service-related application.

(Prior art literature)

(Non-patent literature)

Non-Patent Document 1: "Standard Specification of Media Transmission Method Based on MMT in Digital Broadcasting" ARIB STD-B601.12 Version Revised on April 12, 2018, Radio Wave Industry Association

Non-Patent Document 2: "Technical Materials for Advanced Broadband Satellite Digital Broadcasting Operational Regulations" ARIB TR-B391.7 Version Revised on April 12, 2018, General Radio and Television Industry Association

In 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.

However, in the future, in a case where a data content service such as a version upgrade of an application format, which is one of the fields of an application service descriptor, is performed, in order to provide high-functionality with a television receiver, For the corresponding data content services, you can consider configuring multiple application service descriptors in the MPT descriptor area of the MPT.

Summary of the invention

An object of the method and device for transmitting a broadcast signal according to the embodiment of the present application is to provide an MPT and an application service descriptor corresponding to the higher functionality of a data content service.

In a first aspect, 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.

In a second aspect, 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.

According to a third aspect, 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 .

According to a fourth aspect, 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 method in which a video signal and an audio signal of a broadcast program are multiplexed with an application function given to control information of the broadcast program, and an analysis unit analyzes an analysis unit from the control information included in the broadcast signal. The first control information 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 the desired second control The entry information of the information controls the application function.

According to a fifth aspect, 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.

According to a sixth aspect, 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, Wherein, 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. Forming; 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.

Optionally, in the foregoing aspects, the control information is control information of a TLV data packet or MMT.

Optionally, in the foregoing aspects, the first control information is MPT.

Optionally, in the foregoing aspects, the second control information is an application service descriptor.

Optionally, in the analyzing step of the foregoing aspects, the desired second control information is determined according to an order of the second control information configured in the first control information.

Optionally, 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.

Optionally, in the foregoing aspects, 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.

Optionally, in the foregoing aspects, 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.

Optionally, in the receiving apparatus of the foregoing aspects, the analysis unit determines the desired second control information according to an order of the second control information configured in the first control information.

Optionally, in the receiving apparatus of the foregoing aspects, the analysis unit determines the desired second control information according to a value of an application_format field of the application service descriptor.

Optionally, in the receiving apparatus of the foregoing aspects, the analysis unit determines the desired second control information according to a value of a document_resolution field of the application service descriptor.

BRIEF DESCRIPTION OF THE DRAWINGS

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.

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. Schematic illustration of an example of the combination;

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. A schematic illustration of yet another example of the combination.

detailed description

Hereinafter, embodiments will be described with reference to the drawings.

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. A function of transmitting information (SI, Signaling Information) signals as broadcast signals. 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). The multiplexing method of the broadcast signal is based on the MMT / TLV method described in Non-Patent Document 1.

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.

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. In addition, 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.

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. In addition, 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).

In the example shown in FIG. 1, 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. In order to transmit a broadcast program stored in the broadcast program server 101 as a broadcast signal, 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. As described in Non-Patent Document 2, 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.

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. In addition, 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.

As described above, according to 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. 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.

The for (j = 0; j <M; j ++) {asset_descriptors_byte} field shown by reference numeral 402 is a data area in which the data of the descriptor is arranged. In the data area, M (M is an integer) descriptors from j = 0 to M-1 can be arranged.

According to 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.

In a case where the broadcast signal receiving device 100 recognizes the application service descriptor of the MPT configured in the received broadcast signal, the broadcast signal receiving device 100 can recognize that the transmitted broadcast signal is also provided with HTML or the like. Application functions.

However, it is conceivable that when the data content service is highly functional, there are various versions of the data content service, and the corresponding capabilities of each version of the data content service of the broadcast signal receiving device are different. .

Therefore, 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. In addition, 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.

As shown in FIG. 6B, 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). Among them, 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.

In this way, compared to 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. Regarding the extended application service descriptor, 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.

In addition, 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 .

As described above, 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 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).

Specific examples of the extended application service descriptor and extended MPT generated by the method and apparatus for transmitting and receiving broadcast signals in the embodiments of the present application, and specific examples of the extended application service descriptor and extended MPT analyzed are shown below.

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. schematic diagram.

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.

In addition, 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. Among the two values in parentheses, 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, and 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. In addition, 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.

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.

Specifically, for example, when the value of the application_format field of the extended application service descriptor (AS-1) 702 is “0x1”, 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.

In addition, 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.

Specifically, for example, when the value of the application_format field of the extended application service descriptor (AS-1) is other than "0x1", 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.

If it is determined that the extended application service descriptor (AS-1) 712 is not the expected 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.

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. .

In addition, 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.

(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.

In addition, the 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.

Specifically, for 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) 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. For example, 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.

In addition, 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.

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 An example of a case where a service descriptor is applied.

Specifically, for example, the 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.

In addition, 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.

Specifically, for example, in a case where the application_format field of the extended application service descriptor is set to “0x1” and the document_resolution field is set to “0000”, the 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.

In this way, when a plurality of extended application service descriptors are configured in the extended MPT, the 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. However, 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.

In addition, 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. .

Specifically, for 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. For 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" 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.

As another example, 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.

In addition, 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.

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.

Specifically, for 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) 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.

In addition, 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.

When the control information included in the received broadcast signal is analyzed and the conditions are satisfied, 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.

The example in 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.

Specifically, for example, in a case where the application_format field of the extended application service descriptor is set to “0x1” and the document_resolution field is set to “0000”, the 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.

When a plurality of extended application service descriptors are configured in the extended MPT, the control information generating unit 214 can arbitrarily determine its configuration order.

For example, 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. By configuring 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.

In addition, for example, 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, may be arranged in the descriptor data arrangement area 402. . Alternatively, 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. As a result, 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.

Although some embodiments of the present application have been described, the embodiments are merely presented as examples, and are not intended to limit the scope of the present application. These novel embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the present application. These embodiments and modifications include the scope and spirit of the present application, and the invention described in the claims and the equivalent scope thereof. Furthermore, among the respective constituent elements of the claims, the case where the constituent elements are expressed by division, the case where a plurality of elements are combined and displayed, or the case where these elements are expressed by combining these also fall within the scope of the present application. In addition, 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. In addition, 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.

Claims

A method for transmitting a broadcast signal includes:

Setting the control information included in the broadcast signal, wherein the control information includes second control information for setting entry information of the application function and more than one of the second control information is configured First control information;

Sending the broadcast signal including the control information, wherein the broadcast signal is a MMT / type-length-value TLV transmission in a moving picture expert group media, which combines a video signal and an audio signal of a broadcast program with those of the broadcast program. The application functions provided by the control information are multiplexed and formed.
The method for transmitting a broadcast signal according to claim 1, wherein:

The control information is control information of a TLV data packet or MMT.
The method for transmitting a broadcast signal according to claim 1, wherein:

The first control information is MPT.
The method for transmitting a broadcast signal according to claim 1, wherein:

The second control information is an application service descriptor.
A broadcast signal transmitting device includes:

A setting unit for setting the control information included in the broadcast signal, the control information including second control information for setting entry information of the application function, and one or more of the control information being configured First control information of the second control information;

A sending unit, configured to send the broadcast signal including the control information, wherein the broadcast signal is a MMT / type-length-value TLV transmission in the moving picture expert group media, and the video signal and audio signal of the broadcast program are The application function provided by the control information of the broadcast program is formed by multiplexing.
The broadcast signal transmitting apparatus according to claim 5, wherein:

The control information is control information of a TLV data packet or MMT.
The broadcast signal transmitting apparatus according to claim 5, wherein:

The first control information is MPT.
The broadcast signal transmitting apparatus according to claim 5, wherein:

The second control information is an application service descriptor.