CN112204904B - Method and device for transmitting broadcast signal - Google Patents

Abstract

The application provides a method and a device for transmitting broadcast signals. The method comprises the following steps: 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 first control information in which one or more pieces of the second control information are arranged; and transmitting the broadcast signal including the control information, wherein the broadcast signal is in a form of multiplexing a video signal and an audio signal of a broadcast program with an application function given to the control information of the broadcast program in a motion picture experts group media transport (MMT)/type-length-value (TLV) mode. The broadcast signal multiplexes a video signal and an audio signal of a broadcast program and an application function given to control information of the broadcast program in an MMT/TLV scheme to provide an MPT and an application service descriptor corresponding to high functionalization of a data content service.

Description

Method and device for transmitting broadcast signal

The present application claims priority of six japanese patent applications with application numbers 2018-132493, 2018-132494, 2018-132495, 2018-132496, 2018-132497 and 2018-132498, filed on 12.7.7.2018, 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 an apparatus for transmitting a broadcast signal.

Background

The multimedia services in the advanced BS digital broadcasting and the advanced broadband CS digital broadcasting are generic terms of a caption service, a text overlay service, and a data content service, and are performed according to the operation rules of non-patent documents 1 and 2.

A data content service is one of multimedia services that simultaneously provides application functions such as HTML and the like in addition to a video/audio broadcast service.

The data content service indicates a case of a program-attached data content service with respect to a broadcast signal by configuring an application service descriptor, which is a descriptor for describing entry (entry) information and the like of a service-related application, in an MPEG media transport packet Table (MPT), which is one of control information included in the broadcast signal.

(Prior art document)

(non-patent document)

Non-patent document 1: "media transmission method standard specification based on MMT in digital broadcasting" ARIB STD-B60.12 edition 2018 year 4 month 12 day revision, general association law electric wave industry association

Non-patent document 2: advanced broadband satellite digital broadcasting operation rule technical data ARIB TR-B39.7 edition 2018 year 4 month 12 day revision, common society Law people electric wave industry Association

In non-patent document 2, only one application service descriptor must be configured in the MPT descriptor region of the MPT of the broadcast service brought by the data content service.

However, in the future, in the case where the high-functionality of the data content service such as the version-up of the application format, which is one of the fields (fields) of the application service descriptor, is performed, it is conceivable to arrange a plurality of application service descriptors in the MPT descriptor region of the MPT in order to provide the data content service according to the capability of the television receiving apparatus.

Disclosure of Invention

An object of the broadcast signal transmission method and apparatus according to the embodiments of the present application is to provide an MPT and an application service descriptor corresponding to high functionality of a data content service.

In a first aspect, an embodiment of the present application provides a method for sending a broadcast signal, including: 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 first control information in which one or more pieces of the second control information are arranged; and transmitting the broadcast signal containing the control information, wherein the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode.

In a second aspect, an embodiment of the present application provides an apparatus for transmitting a broadcast signal, including: a setting unit configured to set the control information included in the broadcast signal, the control information including second control information for setting entry information of the application function and first control information in which one or more pieces of the second control information are arranged; and a transmitting unit, configured to transmit the broadcast signal including the control information, where the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode.

In 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 formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to control information of the broadcast program in a mode of transmitting MMT/type-length-value TLV (multimedia messaging transport protocol) by using a dynamic image expert group media; analyzing the first control information and the second control information from the control information included in the broadcast signal, and acquiring desired second control information from any one of one or more second control information; and controlling the application function using entry information of the desired second control information.

In a fourth aspect, an embodiment of the present application provides an apparatus for receiving a broadcast signal, including: a receiving unit, configured to receive the broadcast signal, where the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode; an analysis unit configured to analyze the first control information and the second control information from the control information included in the broadcast signal, and acquire desired second control information from any one of one or more second control information; and a control unit controlling the application function using entry information of the desired second control information.

In a fifth aspect, an embodiment of the present application provides a method for transceiving a broadcast signal, where the sending side 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 first control information in which one or more pieces of the second control information are arranged; transmitting the broadcast signal including the control information, wherein the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode; the receiving side includes the steps of: 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 desired second control information from any one of one or more second control information; and controlling the application function using entry information of the desired second control information.

In a sixth aspect, an embodiment of the present application provides a broadcast signal transceiving apparatus, where a transmitting side includes: a setting unit configured to set the control information included in the broadcast signal, the control information including second control information for setting entry information of the application function and first control information in which one or more pieces of the second control information are arranged; a transmitting unit, configured to transmit the broadcast signal including the control information, where the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode; a receiving side comprising: a receiving unit configured to receive the broadcast signal, wherein the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to control information of the broadcast program in an MMT/TLV scheme; an analysis unit configured to analyze the first control information and the second control information from the control information included in the broadcast signal, and acquire desired second control information from any one of one or more second control information; and a control unit controlling the application function using entry information of the desired second control information.

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

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

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

Alternatively, in the analyzing step of the foregoing aspect, 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 first control information from the control information included in the broadcast signal; determining the desired second control information according to an order of the second control information configured in the first control information.

Optionally, in the foregoing aspects, acquiring desired second control information from any one of more than one second control information includes: determining the desired second control information according to a value of an application _ format field of the application service descriptor.

Optionally, in the foregoing aspects, acquiring desired second control information from any one of more than one second control information includes: determining the desired second control information according to a value of a document _ resolution field of the application service descriptor.

Alternatively, in the reception 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 in 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 in the foregoing aspects, the analyzing unit determines the desired second control information according to a value of a document _ resolution field of the application service descriptor.

Drawings

Fig. 1 is a schematic diagram showing the overall configuration of a broadcast signal transmitting apparatus, a content server, a broadcast signal receiving apparatus, a communication network system of an embodiment of the present invention;

fig. 2 is a schematic diagram briefly showing the structure of a broadcast signal transmitting apparatus;

fig. 3 is a schematic diagram briefly showing the structure of a broadcast signal receiving apparatus;

fig. 4 is a diagram showing the syntax of MPT;

FIG. 5 is a diagram showing the syntax of an application service descriptor;

fig. 6A is a list showing settable values defined in the application _ format field and settable values defined in the document 1 and the document _ resolution field of the application descriptor defined in the document 2.

Fig. 6B is a list showing an example of a value settable in the application _ format field and a value settable in the document _ resolution field of the extended application service descriptor;

fig. 7 is a diagram illustrating an example of a combination of an extended MPT generated by a control information generating unit of a broadcast signal transmitting apparatus and an extended application service descriptor configured therein with an extended application service descriptor acquired from the extended MPT by a control information analyzing unit of a broadcast signal receiving apparatus;

fig. 8 is a diagram illustrating another example of a combination of an extended MPT generated by a control information generating unit of a broadcast signal transmitting apparatus and an extended application service descriptor configured therein with an extended application service descriptor acquired from the extended MPT by a control information analyzing unit of a broadcast signal receiving apparatus;

fig. 9 is a diagram illustrating still another example of a combination of an extended MPT generated by a control information generating unit of a broadcast signal transmitting apparatus and an extended application service descriptor configured therein with an extended application service descriptor acquired from the extended MPT by a control information analyzing unit of a broadcast signal receiving apparatus.

Detailed Description

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

Fig. 1 is a schematic diagram illustrating an overall configuration of a broadcast signal transmitting apparatus (unit) 100, a server 120, a broadcast signal receiving apparatus 140, and a communication network 180 system according to an embodiment of the present application.

Reference numeral 100 is a broadcast signal transmitting apparatus (also referred to as a broadcasting station) for broadcasting a broadcast program, which includes a broadcast program server 101 and a first basic function 102. The broadcast signal transmitting apparatus 100 may be a ground station that collects programs of each broadcasting company and transmits the collected programs (uplink) 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 title 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 each broadcasting company.

The first basic function 102 is a basic function of the broadcasting station 100, and has a function of symbolizing video data, audio data, and the like of a program to be broadcast (symbolization is called encoding), and multiplexing (multiplex) a signal containing Signaling Information (SI) as control Information to transmit as a broadcast signal. The signaling information signal as the control information is a Type Length Value (TLV) packet (also referred to as a TLV packet) or a control signal of MPEG Media Transport (MMT). 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 used to perform a data content service. The broadcast signal receiving device 140 accesses the content server 120 to perform a data content service based on signaling Information such as MH-AIT (MH-Application Information Table) included in the broadcast signal, and downloads desired content.

The user's broadcast signal receiving apparatus 140, which may be referred to as a television receiving apparatus, includes a second basic function 141 and a control unit 142. Further, the broadcast signal receiving apparatus 140 may be connected to a display unit 160, a Hard Disk Drive (HDD) 162, and the like through an interface (I/F) for connecting with peripheral devices.

The second basic function 141 is a basic function for realizing a television receiving apparatus, and has functions of receiving a broadcast signal transmitted from the broadcasting station 100, separating a video signal (also referred to as a video stream) which is a symbol included in the broadcast signal, an audio signal (also referred to as an audio stream) which is a symbol, caption data, and a signaling information signal, decoding the video signal and the audio signal, receiving the caption data, and analyzing the signaling information signal.

The control unit 142 controls the overall operation of the broadcast signal receiving apparatus 140. Further, the control unit 142 also performs management as follows: management of connection to peripheral devices connected to the broadcast signal receiving apparatus 140, for example, a display unit 160, a speaker 161, and the like, and transmission and reception of data, and management of connection to a Hard Disk Drive (HDD) 162 bound to the broadcast signal receiving apparatus 140, and transmission and reception of data.

The display unit 160 is used to display video contained in the broadcast signal received using the second basic function 141. The display unit 160 may further incorporate a speaker 161, and the speaker 161 outputs sound included in the broadcast signal received by the second basic function 141. The speaker 161 built in the display unit 160 may be an external speaker connected to an interface such as a Universal Serial Bus (USB).

In the illustrated example of fig. 1, the display unit 160 and the broadcast signal receiving apparatus 140 are independent from each other, but may be integrated with the broadcast signal receiving apparatus 140 as one function of the broadcast signal receiving apparatus 140.

Fig. 2 is a schematic diagram schematically showing the structure 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 transmitting apparatus 100 symbolizes video data, audio data, and the like of the program and transmits the resultant as a broadcast signal.

The data broadcast encoder 210 is used to encode data for data broadcast of a program stored in the broadcast program server 101. If a broadcast program is read from the broadcast program server 101, the data broadcast encoder 210 encodes data for data broadcast 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 audio data of the read program.

The caption encoder 213 is a caption encoder for encoding caption 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 subtitle data for the read program.

The control information generating unit 214 is configured to generate TLV data packets (packets) and MMT control information. 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 multiplexing of IP packets (IP packets), and provides information for channel selection, IP address, and corresponding information of service. The MMT control information is control information related to the packet structure and broadcast service of the MMT (also referred to as MMT-SI). The control information generation unit generates a signal including TLV data packets of control information on a program that is an encoding object of the video encoder 211, the audio encoder 212, the subtitle encoder 213, and control information of the MMT.

The scrambler (scrambler) 215 is cooperative with the CAS module 216, and is used to scramble (scramble) the encoded data for data broadcasting output from the data broadcasting encoder 210, the encoded video data output from the video encoder 211, the encoded audio data output from the audio encoder 212, or the encoded subtitle data from the subtitle encoder 213 that outputs. The CAS module 216 is used to generate keys used by the jammer 215 in scrambling.

The multiplexer (multiplexer) 217 is configured to multiplex (multiplex) a data broadcast stream generated by encoding data for data broadcast by the data broadcast encoder 210, a video stream generated by encoding video data by the video encoder 211, an audio stream generated by encoding audio data by the audio encoder 212, a subtitle stream generated by encoding subtitle data by the subtitle encoder 213, and control information generated by the control information generation unit 214 in the MMT/TLV system. The multiplexer 217 generates a TLV stream in which the video stream, the audio stream, the subtitle stream, the TLV data packet, and the control information of the MMT are multiplexed.

The transmitting unit 218 is used for transmitting broadcast signals. The transmitting unit 218 performs channel coding processing such as modulation of 16APSK and error correction coding on the TLV stream generated by the multiplexer 217 to realize broadcast signal transmission.

Fig. 3 is a schematic diagram schematically showing the structure of the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 includes a second basic function 141 for implementing a broadcast signal receiving function and a control unit 142.

The second basic function 141 includes a broadcast Tuner (Tuner) 301, a demultiplexer (demultiplexer) 302, a descrambler (descrambler) 303, a CAS module 304, a data broadcasting engine 305, a video decoder 306, an audio decoder 307, a subtitle decoder 308, a control information analyzing unit 309, and a Graphical User Interface (GUI) 320.

The broadcast tuner 301 is for receiving TLV streams transmitted as broadcast signals. A broadcast signal received by the broadcast tuner 301 is input to the demultiplexer 302.

The demultiplexer 302 serves to separate the multiplexed TLV stream into a video stream, an audio stream, a data broadcasting stream, a subtitle stream, and control information. The demultiplexer 302 is also configured to input the separated video stream, audio stream, data broadcast stream, and subtitle stream to the descrambler 303, and to input a signaling information signal as control information to the control information analysis unit 309, respectively.

The descrambler 303 descrambles (descramble) the inputted video stream, audio stream, data broadcast stream, and subtitle stream in cooperation with the CAS module 304. The descrambler 303 inputs the descrambled video stream to the video decoder 306, inputs the descrambled audio stream to the audio decoder 307, inputs the descrambled data broadcast stream to the data broadcast engine 305, and inputs the descrambled subtitle stream to the subtitle decoder 308, respectively.

The CAS module 304 generates a key that the descrambler 303 uses in descrambling.

The datacast engine 305 is configured to receive and process datacast streams and send the processing results to the compositor 326. The data for data broadcasting transmitted to the synthesizer 326 is synthesized with video data and the like and displayed on the display unit 160.

The video decoder 306 is operative to decode the received video stream and generate signals for display on the display unit 160.

The audio decoder 307 is used to decode the received audio stream and generate a signal that is output to the speaker 161.

The subtitle decoder 308 is used to decode the received subtitle stream and generate a signal for display at the display unit 160.

The decoded video signal, caption signal, and data broadcast signal are synthesized by the synthesizer 326 and output to the display unit 160. Further, the decoded audio signal is output to the speaker 161.

The control information analysis unit 309 is configured to analyze a signaling information signal, which is control information of a broadcast signal, and then transmit the analysis result thereof to the control unit 142.

The control unit 142 is used to control the overall operation of the broadcast signal receiving apparatus 140. The control unit 142 is also used to control a network interface 331 that is an interface with a communication network and an external input interface 332 that is a connection interface with an external device.

As described above, according to non-patent document 2, when performing a data content service that provides an application function such as HTML in addition to a video/audio broadcast service, it is necessary to configure one application service descriptor (also referred to as an application service descriptor) for MPT (MMT Package Table), which is one of signaling information signals.

Fig. 4 is a diagram showing syntax (syntax) of MPT.

An asset _ descriptors _ length field shown at reference numeral 401 indicates the size (size) of the area shown at reference numeral 402.

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

According to non-patent document 2, it is specified that, when a data content service providing an application function such as HTML simultaneously for a video/audio-based broadcast service is performed, a broadcast signal transmitting apparatus can arrange only one application service descriptor transmitted as a broadcast signal in the data area 402 of the MPT.

When the broadcast signal receiving apparatus 100 recognizes an application service descriptor including an MPT arranged in the received broadcast signal, the broadcast signal receiving apparatus 100 can recognize that an application function such as HTML is simultaneously provided in the transmitted broadcast signal.

However, the following can be thought of: when the functionality of the data content service is enhanced, the data content service has various versions, and the capability of the broadcast signal receiving apparatus to support the data content service is different for each version.

Accordingly, the broadcast signal transmission/reception method and apparatus according to the embodiments of the present invention have a function of generating and analyzing an extended application service descriptor corresponding to high-performance data content services. In addition, the broadcast signal transmitting and receiving method and apparatus 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 configured in the MPT.

Fig. 5 is a diagram showing the syntax of an application service descriptor.

Application _ format shown by reference numeral 501 denotes an application symbolization manner used in the data content service.

Document _ resolution shown at reference numeral 502 denotes the resolution (resolution) of the data content, which may also be referred to as resolution.

Fig. 6A shows settable values of the application _ format field and a settable value list of the document _ resolution of the application service descriptor specified in non-patent document 1 and non-patent document 2. The settable value in the application _ format field is only "0x1" (ARIB-HTML 5), and the settable value of the document _ resolution field is "0000" (1920 x 1080), "0001" (3840 x 2160), or "0010" (7680 x 4320).

Fig. 6B shows a list of one example of values settable in the application _ format field and the document _ resolution field of the extended application service descriptor.

As shown in fig. 6B, examples of settable values in the application _ format field of the extended application service descriptor include adding, for example, "0x2" (HTML-a) and "0x3" (HTML-B) to settable values specified in the application _ format field of the application service descriptor. Among these, HTML-A and HTML-B are new application notation systems defined in non-patent documents 1 and 2 with respect to HTML-5, which is the application notation system defined in the prior art.

Further, an example of a value settable in the document _ resolution field of the extended application service descriptor is an example in which 0011 (11520 x 6480), for example, is added to the settable value specified in the document _ resolution field of the application service descriptor.

In this way, the extended application service descriptor is a value that can be set by extending the application _ format field or a value that can be set by extending the document _ resolution field, with respect to the application service descriptor. The extended application service descriptor may be a value that can be set by extending the application service descriptor to a field other than the application _ format field or the document _ resolution field.

In addition, the extended MPT is configured such that the number of extended application service descriptors defined in fig. 6B are configured in the data configuration region of the descriptor indicated by reference numeral 402 of fig. 4 for the MPT is not limited to one, but is extended to a plurality.

As described above, the broadcast signal transmitting/receiving method and apparatus according to the embodiments of the present application have a function of generating and analyzing the extended application service descriptor and the extended MPT, thereby being capable of coping with high functionality of the data content service (for example, a receiving apparatus corresponding to a new (more advanced/advanced) service is capable of coping with a new (more advanced/advanced) service, and only a receiving apparatus corresponding to a legacy service is capable of coping with a legacy service).

Hereinafter, specific examples of the extended application service descriptor and the extended MPT generated by the broadcast signal transmitting and receiving method and apparatus according to the embodiment of the present application, and specific examples of the analyzed extended application service descriptor and the analyzed extended MPT are shown.

Fig. 7 is a diagram illustrating an example of a combination of the extended MPT generated by the control information generating unit 214 and the extended application service descriptor configured therein and the extended application service descriptor obtained from the extended MPT by the control information analyzing unit 309.

Part (A-1) of FIG. 7 shows an example in which the control information generation unit 214 generates an extended MPT701 configured with one extended application service descriptor (AS-1) 702.

Further, part (a-2) of fig. 7 shows an example in which the control information analyzing unit 309 obtains an extended application service descriptor (AS-1) 702 configured in the received extended MPT701 AS a desired extended application service descriptor.

Reference numeral 701 denotes the extended MPT generated by the control information generation unit 214.

Reference numeral 702 denotes an extended application service descriptor configured in the extended MPT by the control information generating unit 214. The left-hand numerical value 703-1 of the two numerical values in parentheses represents the value "0x1" set by the control information generating unit 214 in the application _ format field of the extended application service descriptor, and the right-hand numerical value 703-2 represents the value "0001" set by the control information generating unit 214 in the document _ resolution field of the extended application service descriptor. In addition, the meanings of the two numerical values in parentheses are also the same in the following description of the extended application service descriptor.

The broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT701 configured with the extended application service descriptor (AS-1) 702 in a broadcast signal and transmits the same to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the broadcast signal it receives, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Part (a-2) of fig. 7 is an example showing that the control information analysis unit 309 analyzes the extended MPT701, analyzes values of fields of the configured extended application service descriptor (AS-1) 702, and acquires the extended application service descriptor (AS-1) 702 AS an example of a desired extended application service descriptor according to the result.

The control information analysis unit 309 may make the following determination: for example, the desired extended application service descriptor may be determined by determining the value of the application _ format field set in the extended application service descriptor (AS-1) 702, or the desired extended application service descriptor may be determined by determining the value set in the document _ resolution field, or the desired extended application service descriptor may be determined by determining the value set in the application _ format field and the value set in the document _ resolution field.

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 the desired extended application service descriptor, or when the value of the document _ resolution field is "0001", the control information analysis unit 309 may determine it AS the desired extended application service descriptor, or when the value of the application _ format field is "0x1" and the value of the document _ resolution field is "0001", the control information analysis unit 309 may determine it AS the desired extended application service descriptor.

Part (B-1) of fig. 7 shows another example in which the control information generation unit 214 generates an extended MPT711 configured with one extended application service descriptor (AS-1) 712.

Further, part (B-2) of FIG. 7 shows an example in which the control information analysis unit 309 does not acquire the extended application service descriptor (AS-1) 712 configured in the received extended MPT711 AS a desired extended application service descriptor.

Reference numeral 711 denotes the extended MPT generated by the control information generation unit 214.

Reference numeral 712 denotes an extended application service descriptor configured in the extended MPT by the control information generation unit 214.

The broadcast control information is multiplexed in the broadcast signal and transmitted to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Part (B-2) of fig. 7 shows an example in which the control information analysis unit 309 analyzes the extended MPT711 and analyzes values of fields of the configured extended application service descriptor (AS-1) 712, and depending on the result, does not acquire the extended application service descriptor (AS-1) 712 AS a desired extended application service descriptor.

The control information analysis unit 309 can make the following determination: for example, it can be determined that the extended application service descriptor (AS-1) 712 is not a desired extended application service descriptor by determining the value set in the application _ format field.

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, or 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 when the value of the application _ format field is "0x1" and is set other than the combination of the values of the document _ resolution fields being "0000", the control information analysis unit 309 may determine that it is not the desired extended application service descriptor.

If the extended application service descriptor (AS-1) 712 is determined not to be the desired extended application service descriptor, the control information analysis unit 309 determines that the extended application service descriptor is not configured in the extended MPT included in the received broadcast signal. That is, the broadcast signal receiving apparatus 140 may determine that the data content service is not provided in the received broadcast signal.

Fig. 8 is a diagram illustrating another example of the extended MPT generated by the control information generating unit 214 and a combination of the extended application service descriptor configured therein and the extended application service descriptor obtained from the extended MPT by the control information analyzing unit 309.

Section (a-1) of fig. 8 is an example in which the control information generation unit 214 generates an extended MPT801 configured with an extended application service descriptor (AS-1) 802-1 and an extended application service descriptor (AS-2) 802-2.

Further, part (a-2) of fig. 8 is an example in which the control information analysis unit 309 acquires an extended application service descriptor (AS-1) 802-1 configured in the received extended MPT801 AS a desired extended application service descriptor.

Reference numeral 801 denotes the extended MPT generated by the control information generation unit 214.

Reference numerals 802-1, 802-2 denote two extended application service descriptors configured in the extended MPT by the control information generating unit 214. 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 the extended MPT801 configured with the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 in a broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Fig. 8 (a-2) shows an example in which the control information analysis unit 309 analyzes the extended MPT801, and analyzes the two configured extended application service descriptors 802-1 and 802-2 in the order of the data area of the data of the configuration descriptor configured at 402 in fig. 4, and obtains the extended application service descriptor (AS-1) 802-1 AS a desired extended application service descriptor according to the result thereof.

The control information analysis unit 309 may implement the determination in the following manner: for example, the extended application service descriptor (AS-1) 802-1 or the extended application service descriptor (AS-2) 802-2 may be determined to be the desired extended application service descriptor by determining the value of the application _ format field, or the extended application service descriptor (AS-2) may be determined to be the desired extended application service descriptor by determining the value of the document _ resolution field, or the extended application service descriptor (AS-1) 802-2 and the document _ resolution field may be determined to be the desired extended application service descriptor by determining the value of the application _ format field and the value of the document _ resolution field.

In addition, the control information analysis unit 309 may also determine the configuration order of the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 configured in the extended MPT801 when acquiring a desired extended application service descriptor.

Specifically, for example, the control information analysis unit 309 may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 802-1 that is first configured among extended application service descriptors whose application _ format fields of the extended application service descriptor (AS-1) 802-1 and the extended application service descriptor (AS-2) 802-2 have a value of "0x1", or may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 802-1 that is first configured among extended application service descriptors whose document _ resolution field has a value of "0001", or may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 802-1 that is first configured among extended application service descriptors whose application _ resolution field has a value of "0x1", and whose document _ resolution field has a value of "0001".

The order of the extended application service descriptors configured in the extended MPT to be determined by the control information analysis unit 309 may be configured not at the first but at the last. For example, the control information analysis unit 309 determines the extended application service descriptor (AS-1) 802-1, which is last configured among extended application service descriptors set at the extended application service descriptor (AS-1) 802-1, the application _ format field of the extended application service descriptor (AS-2) 802-2 having a value of "0x1" and the document _ resolution field having a value of "0001", AS the desired extended application service descriptor.

Section (B-1) of FIG. 8 shows another example in which the control information generating unit 214 generates an extended MPT811 configured with an extended application service descriptor (AS-1) 812-1 and an extended application service descriptor (AS-2) 812-2.

Further, part (B-2) of FIG. 8 shows an example in which the control information analysis unit 309 acquires an extended application service descriptor (AS-2) 812-2 configured in the received extended MPT811 AS a desired extended application service descriptor.

Reference numeral 811 denotes the extended MPT generated by the control information generation unit 214.

Reference numerals 812-1, 812-2 denote two extended application service descriptors that the control information generation unit 214 configures in the extended MPT.

The broadcast signal transmitting apparatus 100 multiplexes control information included in the extended MPT811 configured with the extended application service descriptor (AS-1) 812-1 and the extended application service descriptor (AS-2) 812-2 in a broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

The example shown in part (B-2) of fig. 8 is an example showing a case where the control information analysis unit 309 analyzes the extended MPT811, and analyzes the two extended application service descriptors 812-1 and 812-2 that are configured in the order of the data area in which the data of the configuration descriptor shown in 402 of fig. 4 is configured, and based on the result, acquires the extended application service descriptor (AS-2) 812-2 AS a desired extended application service descriptor.

Specifically, for example, the control information analysis unit 309 may determine that the extended application service descriptor (AS-2) 812-2 configured first among extended application service descriptors whose 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 is "0001" is a desired extended application service descriptor.

Section (C-1) of FIG. 8 shows another example in which the control information generation unit 214 generates an extended MPT821 configured with an extended application service descriptor (AS-1) 822-1 and an extended application service descriptor (AS-2) 822-2.

In addition, part (C-2) of FIG. 8 shows an example in which the control information analysis unit 309 does not acquire any of the extended application service descriptor (AS-1) 822-1 and the extended application service descriptor (AS-2) 822-2 configured in the received extended MPT821 AS a desired extended application service descriptor.

Reference numeral 821 denotes an extended MPT generated by the control information generation unit 214.

Reference numerals 822-1, 822-2 denote extended application service descriptors configured by the control information generation unit 214 in the extended MPT.

The broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT821 in which the extended application service descriptor (AS-1) 822-1 and the extended application service descriptor (AS-2) 822-2 are arranged in the broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Part (C-2) of fig. 8 shows an example in which the control information analysis unit 309 analyzes the extended MPT821, and analyzes the two extended application service descriptors 822-1, 822-2 configured in the extended MPT821 in the order of the data area configured with the data of the configuration descriptor shown in 402 of fig. 4, and according to the result, does not acquire any extended application service descriptor as a desired extended application service descriptor.

Specifically, for example, in the case where "0x1" is set in the application _ format field of the extended application service descriptor and "0000" is set in the document _ resolution field, the control information analysis unit 309 determines that it is the desired extended application service descriptor, and determines that the extended application service descriptor having the combination of the other setting values is not the desired extended application service descriptor.

In this manner, when a plurality of extended application service descriptors are arranged in the extended MPT, the control information analysis unit 309 analyzes in the order of the data area in which the data of the arrangement descriptor shown in 402 of fig. 4 is arranged, and repeatedly analyzes until extended application service descriptors satisfying a predetermined condition appear, thereby being able to acquire a desired extended application service descriptor.

Fig. 8 shows an example in which values of the document _ resolution fields of the plurality of extended application service descriptors to be configured in the extended MPT are different, however, values of the application _ format fields of the plurality of extended application service descriptors to be configured in the extended MPT may also be different.

Fig. 9 is a diagram illustrating another example, which shows a combination of the extended MPT generated by the control information generating unit 214 and the extended application service descriptor configured therein and the extended application service descriptor obtained from the extended MPT by the control information analyzing unit 309.

Section (A-1) of FIG. 9 shows, AS an example, that the control information generation unit 214 generates an extended MPT901 configured with an extended application service descriptor (AS-1) 902-1 and an extended application service descriptor (AS-2) 902-2.

Further, part (A-2) of FIG. 9 shows, AS an example, the control information analysis unit 309 obtaining, AS a desired extended application service descriptor, an extended application service descriptor (AS-1) 902-1 configured at the received extended MPT901.

Reference numeral 901 denotes an extended MPT generated by the control information generation unit 214.

Reference numerals 902-1, 902-2 denote two extended application service descriptors configured by the control information generation unit 214 in the extended MPT.

The broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT901 configured with the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 in a broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Part (a-2) of fig. 9 shows an example in which the control information analysis unit 309 analyzes the extended MPT901, and analyzes the two extended application service descriptors 902-1, 902-2 configured in the order of the data area of the data of the configuration descriptor configured at 402 of fig. 4, and based on the result thereof, acquires the extended application service descriptor (AS-1) 902-1 AS a desired extended application service descriptor. .

Specifically, for example, the control information analysis unit 309 may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 902-1 arranged first among extended application service descriptors having the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 whose application _ format field value is "0x1", or may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 902-1 arranged first among extended application service descriptors having the document _ resolution field value of "0001", or may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-1) 902-1 arranged first among extended application service descriptors having the application _ resolution field value of "0x1" and having the document _ resolution field value of "0001", or may determine, AS the desired application service descriptor (AS-1) 902, that is arranged first among extended application service descriptors having the application service descriptor (AS-1) 902 set first among extended application service descriptors having the document _ resolution field value of "0001".

The order of the extended application service descriptors allocated to the extended MPT to be determined by the control information analysis unit 309 may not be the first but the last. For example, the control information analysis unit 309 may determine the extended application service descriptor (AS-1) 902-1 that is last arranged among extended application service descriptors having a value of "0x1" in the application _ format field of the extended application service descriptor (AS-1) 902-1 and the extended application service descriptor (AS-2) 902-2 and a value of "0001" in the document _ resolution field AS the desired extended application service descriptor.

Section (B-1) of FIG. 9 shows, AS another example, that the control information generation unit 214 generates an extended mobile MPT911 configured with an extended application service descriptor (AS-1) 912-1 and an extended application service descriptor (AS-2) 912-2.

Further, part (B-2) of FIG. 9 shows that the control information analysis unit 309 makes a desired extended application service descriptor to acquire an extended application service descriptor (AS-2) 912-2 configured in the received extended MPT 911.

Reference numeral 911 denotes the extended MPT generated by the control information generation unit 214.

Reference numerals 912-1, 912-2 denote 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 included in the extended MPT911 in which the extended application service descriptor (AS-1) 912-1 and the extended application service descriptor (AS-2) 912-2 are arranged in a broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

The broadcast signal receiving apparatus 140 analyzes the extended MPT and the extended application service descriptor included in the control information in the received broadcast signal, and acquires the extended application service descriptor satisfying the condition as a desired extended application service descriptor.

Part (B-2) of fig. 9 is an example for showing that the control information analysis unit 309 analyzes the extended MPT911 and performs two extended application service descriptors 912-1 and 912-2 configured in the order of the data area of the data configured with the configuration descriptor shown in 402 of fig. 4, and acquires the extended application service descriptor (AS-2) 912-2 AS a desired extended application service descriptor AS a result of the analysis.

Specifically, for example, the control information analysis unit 309 may determine, AS the desired extended application service descriptor, the extended application service descriptor (AS-2) 812-2 arranged first among extended application service descriptors having the application _ format field value of "0x1" set in the extended application service descriptor (AS-1) 812-1 and the extended application service descriptor (AS-2) 812-2.

Section (C-1) of FIG. 9 shows, AS another example, that the control information generating unit 214 generates an extended MPT921 configured with an extended application service descriptor (AS-1) 922-1 and an extended application service descriptor (AS-2) 922-2.

Further, part (C-2) of FIG. 9 shows an example in which the control information analyzing unit 309 does not acquire any one of the extended application service descriptor (AS-1) 922-1, the extended application service descriptor (AS-2) 922-2 configured in the received extended MPT AS 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, 922-2 denote extended application service descriptors configured by the control information generation unit 214 in the extended MPT.

The broadcast signal transmitting apparatus 100 multiplexes control information including the extended MPT921 configured with the extended application service descriptor (AS-1) 922-1 and the extended application service descriptor (AS-2) 922-2 in a broadcast signal, and transmits the multiplexed control information to the broadcast signal receiving apparatus 140.

When the control information included in the received broadcast signal is analyzed and a condition is satisfied, the broadcast signal receiving apparatus 140 acquires any one of an extended application service descriptor (AS-1) 922-1 or an extended application service descriptor (AS-2) 922-2 included in the extended MPT921 AS a desired extended application service descriptor.

The example of part (C-2) of fig. 9 shows an example in which the control information analysis unit 309 analyzes the extended MPT, and does not acquire any of the two configured extended application service descriptors as a desired extended application service descriptor.

The example of part (C-2) of fig. 9 shows an example in which the control information analysis unit 309 analyzes the extended MPT921, and performs two extended application service descriptors 922-1 and 922-2 arranged in the extended MPT921 in the order of the data area in which the data of the configuration descriptor shown in 402 of fig. 4 is arranged, and according to the result, neither extended application service descriptor is acquired as a desired extended application service descriptor.

Specifically, for example, in the case where "0x1" is set in the application _ format field of the extended application service descriptor and "0000" is set in the document _ resolution field, the control information analysis unit 309 determines that it is the desired extended application service descriptor, and determines that the extended application service descriptor having the combination of the other setting values is not the desired extended application service descriptor.

When configuring a plurality of extended application service descriptors in the extended MPT, the control information generating unit 214 may arbitrarily determine the configuration order thereof.

For example, an extended application service descriptor set with "0x1" (ARIB-HTML 5) as a description value of the application _ format field described in non-patent document 2 may be arranged at the top of the descriptor data arrangement area 402. By configuring the extended application service descriptor in this order, a data content service can be reliably provided in a broadcast signal receiving apparatus that supports only ARIB-HTML5 as an application symbolization manner.

For example, only one extended application service descriptor set to "0x1" (ARIB-HTML 5) as a description value of the application _ format field described in non-patent document 2 may be arranged in the arrangement region 402 of the descriptor data. Alternatively, only one extended application service descriptor set to "0x1" (ARIB-HTML 5) may be arranged 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 a specific field. Thus, the data content service can be applied to various corresponding capabilities of the broadcast signal receiving apparatus, and extended MPTs and extended application service descriptors can be provided.

Although some embodiments of the present application have been described, the embodiments are presented by way of example only 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 thereof include the scope and gist of the present application, and also include the inventions described in the claims and their equivalent scope. Furthermore, in the respective components of the claims, the case where the components are expressed by being divided, the case where a plurality of components are expressed by being combined, or the case where the components are expressed by combining these components also falls within the scope of the present application. The device of the present application can be applied to any of the cases where the claims are expressed as control logic, the cases where the claims are expressed as a program including instructions for causing a computer to operate, and the cases where the claims are expressed as a computer-readable recording medium on which the instructions are described. The terms and expressions used are not limited to those described above, and are intended to be encompassed by the present application even if they are otherwise indicated, provided that they have substantially the same contents and the same subjects.

Claims (8)

1. A method of transmitting a broadcast signal, comprising:

setting control information included in the broadcast signal, wherein the control information includes second control information for setting entry information of the application function and first control information in which one or more pieces of the second control information are arranged;

transmitting the broadcast signal including the control information, wherein the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode;

the first control information is an MPT, the second control information is an application service descriptor, the application service descriptor is an extended application service descriptor having a plurality of extended application service descriptors, the MPT is an extended MPT, and a plurality of extended application service descriptors transmitted as broadcast signals are arranged in a data region of the MPT as an extended MPT, so that the transmission method has a function of generating and analyzing a high-functional extended application service descriptor corresponding to a data content service.

2. The transmission method of a broadcast signal according to claim 1,

the control information is TLV data packet or MMT control information.

3. The transmission method of a broadcast signal according to claim 1,

multiplexing control information including the extended MPT configured with the extended application service descriptor in the broadcast signal.

4. The transmission method of a broadcast signal according to claim 1,

the extended application descriptor also includes application tokenization schemes other than those specified in ARIB STD-B version 60.12, and ARIB TR-B version 39.7.

5. A transmission apparatus of a broadcast signal, comprising:

a setting unit configured to set control information included in the broadcast signal, the control information including second control information for setting entry information of the application function and first control information in which one or more pieces of the second control information are arranged;

a transmitting unit, configured to transmit the broadcast signal including the control information, where the broadcast signal is formed by multiplexing a video signal and an audio signal of a broadcast program and an application function given to the control information of the broadcast program in a motion picture experts group (MMT)/type-length-value (TLV) mode;

the first control information is an MPT, the second control information is an application service descriptor, the application service descriptor is an extended application service descriptor having a plurality of extended application service descriptors, the MPT is an extended MPT, and a plurality of extended application service descriptors transmitted as broadcast signals are configured in a data region of the MPT as an extended MPT;

a control information generating unit for generating the extended MPT and configuring the extended application service descriptor such that the transmitting device has a function of generating and analyzing a highly-functionalized extended application service descriptor corresponding to a data content service.

6. The transmission apparatus of a broadcast signal according to claim 5,

the control information is TLV data packet or MMT control information.

7. The transmission apparatus of a broadcast signal according to claim 5, wherein,

multiplexing control information including the extended MPT configured with the extended application service descriptor in the broadcast signal.

8. The transmission apparatus of a broadcast signal according to claim 5, wherein,

the extended application descriptor also includes application tokenization schemes other than those specified in ARIB STD-B version 60.12, and ARIB TR-B version 39.7.

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