JP6903727B2 - Broadcast signal generation method and broadcast signal generator - Google Patents

Description

Embodiments of the present invention relate to a broadcast signal generation method and a broadcast signal generation device.

"Follow-up meeting on 4K / 8K roadmap" from the Ministry of Internal Affairs and Communications in July 2015
The "Second Interim Report" has been published. The roadmap for this interim report is a roadmap for starting commercialization (main broadcasting) of 4K broadcasting and 8K broadcasting in BS broadcasting and CS broadcasting in 2018. The features of 4K broadcasting and 8K broadcasting are not only the image resolution, but also the expansion of the color gamut, the expansion of gradation, the expansion of the frame rate, and the HDR (High Dynamic Range), which is the expansion of the expression range of brightness, which is a hot topic these days. Be done.

As a technical standard for HDR broadcasting, public comments were solicited as a report of the Broadcasting System Committee of the Information and Communication Council of the Ministry of Internal Affairs and Communications on April 8, 2016 (http://www.soumu.go.jp/menu_news/s/s. -news / 01ryutsu08_02000150.html), as shown in Table 1 in the report, even in so-called 2K broadcasting of 1080i and 1080p, broadcasting with contents having an expression range of HDR brightness is defined.

"Program layout information standard used for digital broadcasting" ARIB STD-B10 5.9 version Revised on September 29, 2016, Association of Radio Industries and Businesses "Digital Terrestrial Television Broadcasting Operation Regulations Technical Data" ARIB TR-B14 6.2 Edition Revised on July 6, 2016, Association of Radio Industries and Businesses "BS / Broadband CS Digital Broadcasting Operation Regulations Technical Data" ARIB TR-B15 7.1 Edition Revised on July 6, 2016, Association of Radio Industries and Businesses "Video Coding, Audio Coding and Multiplexing Standards for Digital Broadcasting" ARIB TR-B32 3.8 Edition Part 1 Attachment 5 Revised on July 6, 2016, Association of Radio Industries and Businesses ITU-T H.265 (2013) | ISO / IEC 23008-2: 2013: High efficiency video coding

Therefore, even in 2K broadcasting, it is expected to realize a broadcasting service with contents having an expression range of HDR brightness in the future.

According to one embodiment, when a 1080 / i or 1080/60 / p video signal is included in a broadcast signal and transmitted as a 2K broadcast, the codec type of the video signal is High Efficiency Video Coding (High Efficiency Video). Coding: HEVC) is adopted, and a broadcast signal generation method using a control means for describing information specifying the dynamic range of the video signal in video usability information (Video_usablity_information: VUI) inserted into the video stream of HEVC In
The control means
A transmission control signal different from the VUI is arranged for the broadcast signal,
Information corresponding to the transmission characteristics in the VUI is also arranged in the transmission control signal, and the dynamic range of the video signal is set to a position different from the information corresponding to the transmission characteristics. : HDR) is described, and the identification information also identifies the 1080 / i or 1080/60 / p by the component type (Component_Typ), and further, the component type (Component_Typ). Component_Typ) also identifies the aspect ratio,
It is possible to provide a broadcast signal generation method characterized by the above.

FIG. 1 is a diagram conceptually showing the direction of evolution of a video format. FIG. 2 is a diagram showing a configuration example of the entire system of a broadcasting station and a receiver to which the present embodiment is applied. FIG. 3 is a diagram showing a schematic configuration diagram of a broadcasting station. FIG. 4 is a diagram for explaining main streams and information in a broadcast wave transmission path. FIG. 5 is a diagram showing an example of a schematic configuration diagram of a receiver to which the present embodiment is applied. FIG. 6A is a diagram showing the types of tables used when transmitting program specific information and program sequence information. FIG. 6B is a diagram showing an example of a table format. FIG. 7A is a diagram showing bit assignments of the service list descriptor. FIG. 7B is a diagram showing bit assignments of service type types in the service list descriptor. FIG. 7C is a diagram showing bit assignments of the service type types shown in FIG. 7B when operated for terrestrial digital television. FIG. 7D is a diagram showing bit assignments in the case of operation for BS / wideband CS digital broadcasting among the bit assignments of the service type types shown in FIG. 7B. FIG. 8A is a diagram showing an example of bit assignment when the service type type is extended when the service type type is used as the information for designating the dynamic range of the content in the first embodiment. FIG. 8B is a diagram showing an example of bit assignment when the extension of the bit assignment of the service type type shown in FIG. 8A is operated for terrestrial digital television. FIG. 8C is a diagram showing an example of bit assignment when the extension of the bit assignment of the service type type shown in FIG. 8A is operated for BS / wideband CS digital broadcasting. FIG. 9A is a diagram showing an example of a processing flow on the transmitting side of the broadcast wave in the first embodiment. FIG. 9B is a diagram showing an example of a processing flow on the receiving side of the broadcast wave in the first embodiment. FIG. 9C is a diagram showing another example of the processing flow on the receiving side of the broadcast wave in the first embodiment. FIG. 10A is a diagram showing bit assignments of the video decode control descriptor. FIG. 10B is a diagram showing bit assignments of transmission characteristics in the video decode control descriptor. FIG. 10C is a diagram showing bit assignments when the video decode control descriptor shown in FIG. 10A is operated for terrestrial digital television. FIG. 10D is a diagram showing bit assignments when the video decode control descriptor shown in FIG. 10A is operated for BS / wideband CS digital broadcasting. FIG. 11A adds a field of transmission characteristics to the video decode control descriptor operated for terrestrial digital television when the transmission characteristics are used as information specifying the dynamic range of the content in the second embodiment. It is a figure which shows an example of the bit assignment of the video decode control descriptor in the case. FIG. 11B is a diagram showing an example of bit assignment of the transfer characteristic added to the video decode control descriptor shown in FIG. 11A. FIG. 11C shows, as a second embodiment, a field of transmission characteristics in a video decode control descriptor operated for BS / wideband CS digital broadcasting when transmission characteristics are used for information that specifies the dynamic range of the content. It is a figure which shows an example of the bit assignment of the video decode control descriptor when adding. FIG. 11D is a diagram showing an example of bit assignment of the transfer characteristic added to the video decode control descriptor shown in FIG. 11C. FIG. 12 is a diagram showing bit assignment of transmission characteristics in a video-coded VUI defined in Non-Patent Document 5. FIG. 13A is a diagram showing an example of a processing flow on the transmitting side of the broadcast wave in the second embodiment. FIG. 13B is a diagram showing an example of a processing flow on the receiving side of the broadcast wave in the second embodiment. FIG. 13C is a diagram showing another example of the processing flow on the receiving side of the broadcast wave in the second embodiment. FIG. 13D is a diagram showing another example of the processing flow on the receiving side of the broadcast wave in the second embodiment. FIG. 13E is a diagram showing an example of a processing flow on the transmitting side (video coding side) of the broadcast wave in the second embodiment. FIG. 13F is a diagram showing an example of a processing flow on the receiving side (video decoding side) of the broadcast wave in the second embodiment. FIG. 13G is a diagram showing another example of the processing flow on the receiving side of the broadcast wave in the second embodiment. FIG. 14A is a diagram showing the format of the component descriptor. FIG. 14B is a diagram showing bit assignments of component contents and component types in the component descriptor. FIG. 14C is a diagram showing bit assignments of component types when operating for terrestrial digital television among the types of component types shown in FIG. 14B. FIG. 14D is a diagram showing bit assignments of component types when operating for BS / wideband CS digital broadcasting among the types of component types shown in FIG. 14B. FIG. 15A is a diagram showing an example of bit assignment when the component content and the component type are expanded when the component content and the component type are used as the information for designating the dynamic range in the third embodiment. FIG. 15B is a diagram showing an example in the case where the extension of the bit assignment of the component type shown in FIG. 15A is operated for terrestrial digital television. FIG. 15C is a diagram showing an example of a case where the extension of the bit assignment of the component type shown in FIG. 15A is operated for BS / wideband CS digital broadcasting. FIG. 16A is a diagram showing an example of a processing flow on the transmitting side of the broadcast wave in the third embodiment. FIG. 16B is a diagram showing an example of a processing flow on the receiving side of the broadcast wave in the third embodiment. FIG. 16C is a diagram showing another example of the processing flow on the receiving side of the broadcast wave in the third embodiment. FIG. 17A is a diagram showing the format of the content descriptor. FIG. 17B is a diagram showing the types of genre 1 (content_nibble_level_1) of the content descriptor. FIG. 17C is a diagram showing the types of content descriptor genre 2 (content_nibble_level_2). FIG. 17D is a diagram showing another type of content descriptor genre 2 (content_nibble_level_2). FIG. 18A is a diagram showing an example of bit assignment when genre 1 is extended when genre 1 is used as information for designating the dynamic range of the content in the third embodiment. FIG. 18B is a diagram showing an example of bit assignment when genre 2 is extended when genre 2 is used as information for designating the dynamic range of the content in the third embodiment. FIG. 18C is a diagram showing another example of bit assignment when the genre 2 is extended when the genre 2 is used as the information for designating the dynamic range of the content in the third embodiment. FIG. 19A is a diagram showing the state of ES_PID described in the elementary_PID field of PMT for each event. FIG. 19B is a diagram showing the state of ES_PID described in the elementary_PID field of the PMT for each event when the event is shared. FIG. 20A is an example of the contents to be displayed on the display screen when the receiver creates the 12-position list. FIG. 20B is another example of the content to be displayed on the display screen when creating the 12-position list in the receiver. FIG. 20C is another example of the content to be displayed on the display screen when creating the 12-position list in the receiver. FIG. 21A is an example of display contents indicating that the program displayed on the display 220 is HDR content broadcasting. FIG. 21B is an example of display contents for displaying whether the program displayed on the display 220 is HDR content broadcasting or SDR content broadcasting. FIG. 21C is another example of the display content for displaying whether the program displayed on the display 220 is an HDR content broadcast or an SDR content broadcast. FIG. 21D is another example of the display content for displaying whether the program displayed on the display 220 is an HDR content broadcast or an SDR content broadcast. FIG. 22A is an example of display contents for displaying whether the program displayed on the display 220 in the program including a plurality of program data is an HDR content broadcast or an SDR content broadcast table. FIG. 22B is another example of the display content for displaying whether the program displayed on the display 220 in the program including a plurality of program data is an HDR content broadcast or an SDR content broadcast table. FIG. 23 is an example of the display contents of the program table in which the types of the HDR broadcast / SDR broadcast table are displayed. FIG. 24A is an example of the display contents of the program guide when the user selects “Hi-Vision Great Adventure” 2302 of the program guide shown in FIG. 23. FIG. 24B is another example of the display content of the program guide when the user selects “Hi-Vision Great Adventure” 2302 of the program guide shown in FIG. 23. FIG. 25A is an example of the display contents of the recording list. FIG. 25B is another example of the display content of the recording list.

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

First, the outline leading to the idea of the present embodiment will be described. FIG. 1 is a diagram showing the direction of evolution of the video format. The direction of evolution can be broadly divided into the evolution of resolution and the evolution of expression range. The evolution of resolution has three evolutionary directions: the evolution of two-dimensional resolution (plane), the evolution of three-dimensional resolution (gradation), and the evolution of four-dimensional resolution (frame rate). The evolution of the expression range, which is another direction of evolution, has two directions: the evolution of the expression range of color and the evolution of the expression range of brightness.

In recent years, the evolution of video formats has been preceded by the evolution of resolution, but the evolution of the range of expression is also becoming more important.

Furthermore, although the creation of 2K broadcast content is the mainstream at the content (also called program) creation site, the content having the brightness expression range of SDR (Standard Dynamic Range) in the 2K broadcast content (hereinafter referred to as SDR content). It is also becoming easier to simultaneously create content having an expression range of HDR and HDR (hereinafter referred to as HDR content).

There are two methods for realizing HDR, an HLG (Hybrid Log-Gamma) method and a PQ (Perceptual Quantization) method, and the HLG method is a method adopted in 4K broadcasting / 8K broadcasting. The HLG method is characterized by having backward compatibility, but when displaying HDR content (HLG method) on a display that supports only SDR content, it is not that there is no effect on the expected display.

Therefore, when HDR (HLG system) content is introduced in 2K broadcasting, HDR (HLG system) for 2K broadcasting is not affected by the existing receiver dedicated to 2K broadcasting, and even in a receiver compatible with 4K broadcasting. It is hoped that the content will be recognized correctly.

Therefore, in the present embodiment, the HDR content is broadcast in 2K broadcasting by extending the processing for the broadcast waves on the transmitting side and the receiving side.

FIG. 2 is a diagram showing a configuration example of the entire digital broadcasting system to which the present embodiment is applied.

The broadcasting station 200 includes a broadcasting station server 201, a first security function 202, and a first basic function 203. The first basic function 203 is a basic function of the broadcasting station 200, which encodes and multiplexes a video signal, an audio signal, etc. of a program to be broadcast, and broadcast signals (this broadcasting signal is BS broadcasting, CS broadcasting, etc. It has a function to transmit as any broadcast wave such as terrestrial digital television broadcasting). The broadcasting station 200 can also transmit digital broadcasting signals, application control information, transmission control signals which are control information related to content display, and the like as broadcasting signals.

The broadcasting station server 201 is an area in which metadata such as a program title, a program ID, a program outline, a performer, a broadcast date and time, and other data is stored in advance in order to be transmitted to a receiver by a broadcast signal.

The first security function 202 can set the protection of the content (program) included in the broadcast wave transmitted by the broadcasting station.

The receiver 210 includes a digital broadcast reception function (second basic function 211), a second security function 212, an API 213, and an application management function 214, and receives broadcast signals to receive various broadcast programs and various service information. can do.

The second basic function 211 is a basic function of the receiver, which receives a broadcast wave sent from the broadcasting station 200 and is a video signal (also called a video stream) which is a broadcast signal included in the broadcast wave. It has a function of separating control signals such as audio signals (also called audio streams) and accompanying transmission control signals, decoding video signals and audio signals, and analyzing control signals such as transmission control signals.

The second basic function 211 includes connection with peripheral devices connected to the receiver 210, for example, a display 220, an HDD (Hard Disk Drive) 230 bound to the display 220, a removable media 240, and a smartphone 250. It also manages the transmission and reception of data.

The second security function 212 reads the transmission control signal analyzed by the second basic function 211, and analyzes the information related to the protection of the program set by the first security function 202 of the broadcasting station 200 included therein. I do.

The API 213 is an I / F for the second basic function 211, the application management function 214, and the application 215 to operate in cooperation with each other.

The application management function 214 has a function of managing the application 215, and operates in cooperation with the application 215 via the second basic function 211 and the API 213. The application management function 214 also includes a user interface function, and has, for example, a function of controlling a screen to be displayed on the display 220.

The application 215 is an application that operates in cooperation with the second basic function 211 and the application management function 214, and can be downloaded / updated by the user or the receiver 210 via a sequential network (not shown). .. These updates can improve the usability of the user who uses the receiver 210.

The display 220 has a built-in speaker 221 and displays the video signal decoded by the second basic function 211 in the display area or outputs the audio signal to the speaker 221. The speaker 221 built in the display 220 may be an external speaker connected by an I / F such as USB.

FIG. 3 schematically shows the main configuration of the broadcasting station 300 (corresponding to 200 in FIG. 2). The broadcasting station 300 generates ancillary data that generates control data and service data such as a video encoder 301, an audio encoder 302, a subtitle encoder 303, and other transmission control signals, and application control information that controls an application 215 operating on the receiver 210. A unit 304 is provided. Further, in the broadcasting station 300, the broadcasting station server 311 (corresponding to 201 in FIG. 2), the first security function 312 (corresponding to 202 in FIG. 2), and the transmission / reception unit 313 are linked. The video encoder 301, the audio encoder 302, the subtitle encoder 303, the attached data generation unit 304, the multiplexing unit 305, the transmitter 306, and the transmission / reception unit 313 are collectively referred to as the first basic function 310 (corresponding to 203 in FIG. 2).

The transmission control signal generated by the attached data generation unit 304 includes, for example, program selection information (PSI: Program Specific Information) or program sequence information (SI: Service Information) defined in Non-Patent Document 1. It includes various information specified for the purpose and various control information specified for improving the convenience of program selection.

The present embodiment realizes broadcasting of HDR contents in 2K broadcasting by expanding the program specific information and the program arrangement information.

The outputs of the video encoder 301, the audio encoder 302, the subtitle encoder 303, and the attached data generation unit 304 are streamed, and these streams are multiplexed in the multiplexing unit 305. The multiplexed stream (broadcast signal) is transmitted to the transmitter 306 as a transport stream, and is transmitted from the antenna by broadcast radio waves.

The codec type of the video encoder 301 is MPEG-2, H.M. 264 (AVC: Advance Video Coding), H. Any of 265 (HEVC: High Efficiency Video Coding) may be used. The codec type of the video encoder 301 is not limited to this.

FIG. 4 shows, in the broadcast wave transmission line 400, a video stream (video signal), an audio stream (audio signal), a data broadcast stream (data broadcast signal), and application control information / service data / control data are multiplexed and transmitted. It shows how it looks.

FIG. 5 schematically shows the main configuration of the receiver 500 (corresponding to 210 in FIG. 2) to which the present embodiment is applied. The receiver 500 has a receiving function (second basic function 510 (corresponding to 211 in FIG. 2)) for receiving broadcast waves.

The second basic function 510 includes a broadcast tuner 501, a descrambler 502, a CAS module 503, a demultiplexer 504, a data broadcast reception process 505, a video decoder 506, an audio decoder 507, a subtitle decoder 508, and a data broadcast engine 509.

The broadcast tuner 501 demodulates the stream (broadcast signal) sent by the broadcast wave. The demodulated stream (broadcast signal) is input to the descrambler 502. The descrambler 502 descrambles the input stream using the key from the CAS (Conditional Access System) module 503. The stream descrambled by the descrambler 502 is input to the demultiplexer 504. The demultiplexer 504 separates the multiplexed video stream (video signal), audio stream (audio signal), data broadcast stream (data broadcast signal), and application control information / service data / control data, and separates the separated streams. Input to the corresponding decoder. The video stream separated by the demultiplexer 504 is decoded by the video decoder 506, the audio stream is decoded by the audio decoder 507, and the subtitle stream included in the application control information / service data / control data is decoded by the subtitle decoder 508. Will be done. The decoded video signal and subtitle signal can be combined by the synthesizer 526 and output to the display 527 (corresponding to 220 in FIG. 2). Further, the audio data decoded by the audio decoder 507 can be output to the speaker 528 (corresponding to 221 in FIG. 2).

Further, the data broadcasting stream separated by the demultiplexer 504 is received by the data broadcasting reception processing unit 505 and input to the data broadcasting engine 509. The data broadcasting engine 509 can analyze the display signal sent by the data broadcasting and output the analysis content to the display 527 via the synthesizer 526.

Further, the receiver 500 has an integrated controller 521 as a means for controlling the overall operation. The integrated controller 521 is composed of a second security function 522 (corresponding to 212 in FIG. 2), an API 523 (corresponding to 213 in FIG. 2), and an application management function 524 (corresponding to 214 in FIG. 2).

The second security function 522 reads information on content protection from the transmission control signal included in the broadcast wave and outputs it to the display 527 or the speaker 528, or to a connected peripheral device (not shown). Performs content protection processing when outputting.

The API 523 is an I / F for the second basic function 510, the application management function 524, and the application 525 to operate in cooperation with each other.

The application management function 524 controls each block of the receiver 500 based on various control information included in the application control information transmitted by the broadcast wave. Further, the application management function 524 manages the application 525 in cooperation with the second basic function 510 via the API 523.

The application management function 524 also analyzes transmission control signals such as program sequence information included in service data / control data transmitted by broadcast waves, and controls each block of the receiver 500 based on the analysis result. ..

The codec type of the video decoder 506 is MPEG-2, H.M. 264 (AVC: Advance Video Coding), H. Any of 265 (HEVC: High Efficiency Video Coding) may be used. The codec type of the video decoder 506 is not limited to this.

FIG. 6A is a list showing the types of tables used when transmitting the program sequence information in the transmission control signal transmitted from the broadcasting station to the receiver, which is defined in Non-Patent Document 1 and the like. The table described in the "Table name" column indicates that the table is used when sending the information of the contents described in the "Function overview" column.

FIG. 6B is a diagram showing an example of a table format by taking NIT (Network Information Table) described in Non-Patent Document 1 and the like as an example.

The transmission control signal is mapped and transmitted according to a format called a table as defined in Non-Patent Document 1 and the like. The table has a table identifier 601 consisting of 1 byte, and the table identifier 601 represents the type of the table. The table is further subdivided into fields, in which information fields 602 and 603 called descriptors are arranged. The descriptor is divided into finer fields, and information elements are specified in each field. The descriptors arranged in each table are defined in Non-Patent Document 1. For example, a service list descriptor is placed in the NIT. The video decode control descriptor is placed in the PMT (Program Map Table).

The receiver 500 can grasp the information related to the transmission line information and the broadcasting service by analyzing the NIT, for example.

<First Embodiment>
Next, a first embodiment for realizing HDR content broadcasting in 2K broadcasting will be described.

The first embodiment realizes HDR content broadcasting in 2K broadcasting on a service-by-service basis. Here, the service is an organization channel.

Therefore, in the first embodiment, the service type (service_type) is used as the information for designating the dynamic range of the content.

Hereinafter, using FIGS. 7A to 7D, the current service list descriptor defined in Non-Patent Documents 1 to 3 and the service type types arranged therein will be described. ..

FIG. 7A shows the overall structure of the service list descriptor described in Non-Patent Document 1. The service type type 701 is arranged in this descriptor.

FIG. 7B shows the bit assignment of the service type type 701 described in Non-Patent Document 1. For example, when the bit assignment is 0x01, this service format type means that it is a digital TV service. There are also undefined bit assignments (702, 703) in the bit assignment of this service type.

FIG. 7C shows the bit assignments of the service type types shown in FIG. 7B, which are described in Non-Patent Document 2 and are used in terrestrial digital television broadcasting. The service type type with a circle in the column of "Operation in terrestrial digital television broadcasting" in the figure is the bit assignment operated in terrestrial digital television broadcasting.

FIG. 7D shows the bit assignments of the service type types shown in FIG. 7B, which are described in Non-Patent Document 3 and are operated in BS / wideband CS digital broadcasting.

The media types in the table are a collection of multiple service type types.

Therefore, in the first embodiment, the service list descriptor described above is extended and used in order to realize HDR content broadcasting in 2K broadcasting on a service-by-service basis. An example of the extension will be described below.

FIG. 8A shows an extended example of the bit assignment of the service type type shown in FIG. 7B. 801 represents the extended bit assignment 0x03 and the HDR-compatible 2K dedicated service, which is the meaning of the value. That is, when the service type of the service list descriptor is 0x03, it means that the organization channel is providing the HDR-compatible 2K dedicated service.

Due to this expansion, the undefined region 702 shown in FIG. 7B is changed to the undefined region 802 shown in FIG. 8A. An example of this extension is an example in which an extension bit assignment is assigned from the undefined 702 shown in FIG. 7B, but an extension bit assignment may be assigned from another undefined area, for example, undefined (standardization). An extension bit assignment may be assigned from the institution-defined area) 703.

FIG. 8B shows an example of the contents of the expansion in the operation of terrestrial digital television broadcasting based on the expansion of FIG. 8A. In this case, as shown by 803 in the media type = television type, 0x03 is expanded and assigned.

FIG. 8C shows an example of the contents of the expansion in operation in BS / wideband CS digital broadcasting based on the expansion of FIG. 8A. In this case, 0x03 is expanded and assigned as shown by 804 in the media type = television type.

In the above example, the service list descriptor (Service list descriptor) has been described as an example, but other descriptors including the service type, for example, the service descriptor (Service descriptor) are also extended in the same manner.

FIG. 9A shows an example of a processing flow on the transmitting side in the first embodiment. The content of this process can be determined by the intention of the transmitting side (for example, the broadcasting station 300 in FIG. 3).

When the transmitting side, for example, the broadcasting station 300 broadcasts HDR content in 2K broadcasting on a service-by-service basis, the value of each field of the service list descriptor is set as follows.

When the transmitting station 300 starts the process of setting the value of each field of the service list descriptor (S900), it determines whether or not the organization channel is an HDR content broadcasting service (S901). When the organization channel is an HDR content broadcasting service, "HDR compatible 2K dedicated service = 0x03" is set in the service format type of the service list descriptor (S902). If the organization channel is not an HDR content broadcasting service, another service type such as "digital TV service = 0x01" is set in the service format type of the service list descriptor (S903).

The transmitting station 300 subsequently sets necessary information in the service identification and the like, which is another field of the service list descriptor (S904). After setting the required values in all the fields of the service list descriptor, the transmitting station 200 sets the required values in all the fields of the NIT (Network Information Table) including the service list descriptor to generate the NIT. (S905).

The broadcasting station 300 multiplexes the generated NIT by the multiplexing unit 305 shown in FIG. 3 at a predetermined timing, and transmits it as a broadcast wave via the transmitter 306.

FIG. 9B shows an example of a processing flow on the receiving side in the first embodiment. Here, the receiver 500 is a television capable of receiving the HDR content broadcasting service in 2K broadcasting, that is, a television capable of recognizing the "HDR compatible 2K dedicated service" bit-assigned to the service type.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) by the broadcast tuner 501, and separates each stream by the demultiplexer 504. The service data / control data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S910).

The integrated controller 521 extracts the NIT from the transmission control signal (S911), and further extracts the service list descriptor from the NIT (S912). When the integrated control 521 extracts the service list descriptor, the integrated control 521 further extracts the service type type (S913). When the integrated controller 521 extracts the service type, the integrated controller 521 determines the value (S914).

As a result of the determination, when the value of the service type type is "digital TV service = 0x01" (S914), the integrated controller 521 sets the organization channel as the channel selection target (S915) and "service" of the organization channel. Various settings (S916) are made as "format type = digital TV service", and the process ends (S921).

Further, as a result of the determination, when the value of the service type type is "temporary video service = 0xA1" (S914), the integrated controller 521 sets the organization channel as the channel selection target (S915) and also sets the organization channel to "S915". Various settings (S916) are made as "service type = temporary video service", and the process ends (S921).

As a result of the determination, when the value of the service type type is "HDR compatible 2K dedicated service = 0x03" (S917), the integrated controller 521 sets the organization channel as the tuning target (S918) and of the organization channel. Various settings (S919) are made as "service type = HDR compatible 2K dedicated service", and processing is terminated (S921).

As a result of the determination, if the value of the service format type is neither "digital TV service = 0x01", "HDR compatible 2K dedicated service = 0x03", or "temporary video service 0xA1", the relevant organization channel is set to non-selection target (S920). ) To end the process (S921).

FIG. 9C shows a television in which the receiver 500 cannot receive the HDR content broadcasting service in 2K broadcasting, that is, a television that cannot recognize the "HDR compatible 2K dedicated service" bit-assigned to the service type. This is an example of the processing flow of the case.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) with the broadcast tuner 501, and separates each stream by the demultiplexer 504. The control data / service data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S930).

The integrated controller 521 extracts the NIT from the transmission control signal (S931), and further extracts the service list descriptor from the NIT (S931). When the integrated control 521 extracts the service list descriptor, the integrated control 521 further extracts the service type type (S933). When the integrated controller 521 extracts the service type, the integrated controller 521 determines the value (S934).

As a result of the determination, when the value of the service type type is "digital TV service = 0x01" (S934), the organization channel is set as the channel selection target (S935), and the service type type of the organization channel = "digital TV service". The receiver is set (S936) and the process is terminated (S938).

As a result of the determination, when the value of the service type type is "temporary video service = 0xA1" (S934), the organization channel is set as the channel selection target (S935), and the service type type of the organization channel = "temporary video". The receiver is set as "service" (S936), and the process is terminated (S938).

As a result of the determination, when the value of the service type type is other than "digital TV service = 0x01" and "temporary video service = 0xA1", the organization channel is set to non-tuning (S937) and the process is terminated (S938). ).

As described above, according to the first embodiment, the receiver 500 can determine whether or not it is an HDR content broadcasting service (channel) at the stage of creating the organization channel information to be received, and based on this determination. It is possible to create channel information of the organization channel received by the receiver 500.

Further, the receiver that does not support the HDR content broadcasting service (channel) can ignore the HDR content broadcasting service (channel) without adding processing. As a result, the transmitting side that provides the HDR content broadcasting service (channel) in 2K broadcasting can also provide HDR content broadcasting without being aware of whether or not the receiver supports the HDR content broadcasting service in 2K broadcasting. This makes it possible, which enhances the convenience of the sender / receiver and the user who uses the receiver.

<Second embodiment>
Next, a second embodiment for realizing HDR content broadcasting in 2K broadcasting will be described.

The second embodiment realizes HDR content broadcasting on a program-by-program basis. Here, a program is a collection of broadcast data stream components whose start and end times belong to the same service, and is, for example, one program such as news or drama. A program can also be called an event.

Therefore, in the second embodiment, transfer characteristics can be used as information for designating the dynamic range of the content.

Hereinafter, using FIGS. 10A to 10D, the current video decode control descriptor described in Non-Patent Document 1 to Non-Patent Document 3 and the transmission characteristics arranged therein will be described. To do.

FIG. 10A shows the overall structure of the video decode control descriptor described in Non-Patent Document 1. The transfer characteristic 1001 is arranged in this descriptor.

FIG. 10B shows the bit assignment of the transmission characteristic 1001. For example, when the bit assignment is 0x10, this transfer characteristic means that transfer_characteristics = 18 of VUI. Here, VUI (Video Usability Info) is control information in video coding. That is, the transmission characteristics are also defined in the video-encoded VUI. The transmission characteristics defined in the VUI will be described with reference to FIG.

FIG. 10C shows the overall structure of the video decode control descriptor described in Non-Patent Document 2 (related to terrestrial digital television broadcasting). In the video decode control descriptor shown in FIG. 10C, the field of transfer characteristics shown in FIG. 10A is defined as reserved_future_use1002.

Further, FIG. 10D shows the overall structure of the video decode control descriptor described in Non-Patent Document 3 (BS / wideband CS digital broadcasting-related). In the video decode control descriptor shown in FIG. 10D, the field of transfer characteristics shown in FIG. 10A is defined as reserved_future_use1003.

Therefore, in the second embodiment, in order to realize HDR content broadcasting in 2K broadcasting on a program-by-program basis, the video decode control descriptor operated in the terrestrial digital television broadcasting shown in FIG. 10C and the video decoding control descriptor shown in FIG. 10D are shown. The video decode control descriptor used in BS / wideband CS digital broadcasting is extended and used. An example of the extension will be described below.

FIG. 11A shows an example of the overall configuration when the video decode control descriptor described in Non-Patent Document 2 (related to terrestrial digital television broadcasting) of FIG. 10C is extended. In the video decode control descriptor shown in FIG. 11A, the transfer characteristic 1101 is arranged.

FIG. 11B shows an example of the bit assignment of the added transmission characteristic 1101.

FIG. 11C shows an example of the overall configuration when the video decode control descriptor described in Non-Patent Document 3 (BS / wideband CS digital broadcasting-related) of FIG. 10D is extended. In the video decode control descriptor shown in FIG. 11C, the transfer characteristic 1102 is arranged.

FIG. 11D shows an example of bit assignment of the added transmission characteristic 1102.

Furthermore, this transmission characteristic is also specified in the VUI (Video Usability Info) of video coding.

FIG. 12 is a diagram showing bit assignments of transfer characteristics (transfer_characteristics) specified in the video-encoded VUI specified in Non-Patent Document 5. For example, 1201 is an HDR (PQ method) and 1202 is an HDR (HLG method) bit assignment.

In the second embodiment, it is possible not only to use the transfer characteristics of the video decode control descriptor as the information that specifies the dynamic range of the content, but also to use the transfer_characteristics of the video-encoded VUI. Alternatively, either one of the transmission characteristics may be used.

FIG. 13A shows an example of a processing flow on the transmitting side in the second embodiment. The content of this process can be determined by the intention of the transmitting side (for example, the broadcasting station 300 in FIG. 1).

When the transmitting side, for example, the broadcasting station 300 broadcasts HDR content in 2K broadcasting on a program-by-program basis, the value of each field of the video decode control descriptor is set as follows.

When the transmitting station 300 starts the process of setting the value of each field of the video decode control descriptor (S1300), it determines whether or not the program is an HDR content broadcasting program (S1301). When the program is an HDR content broadcast program, "10 (= HDR)" is set in the transmission characteristic of the video decode control descriptor (S1302). If the program is not an HDR content broadcast program, "00 (= SDR)" is set in the transmission characteristic of the video decode control descriptor (S1303).

The transmitting station 300 subsequently sets necessary information in the video encoding format or the like, which is another field of the video decoding control descriptor (S1304).

The information required to be set includes the descriptor length (descriptor_length) and the video encoding format (video_encode_format).
After setting the required values in all the fields of the video decode control descriptor, the transmitting station 300 sets the required values in all the fields of the PMT including the video decode control descriptor to generate the PMT (S1305). ..

The broadcasting station 300 multiplexes the generated PMT by the multiplexing unit 305 at a predetermined timing, and transmits the generated PMT as a broadcast wave via the transmitter 306.

FIG. 13B shows an example of the processing flow on the receiving side in the second embodiment. Here, the receiver 500 is a television capable of receiving an HDR content broadcast program in 2K broadcasting, that is, a television capable of recognizing "10 (VUI transfer_characteristics = 18)" bit-assigned to the transmission characteristics. To do.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) by the broadcast tuner 501, and separates each stream by the demultiplexer 504. The service data / control data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S1310).

The integrated controller 521 extracts the PMT from the transmission control signal (S1311), and further extracts the video decode control descriptor from the PMT (S1312). When the integrated controller 521 extracts the video decode control descriptor, the integrated controller 521 further extracts the transmission characteristic from the video decode control descriptor (S1313). When the integrated controller 521 extracts the transmission characteristic, the integrated controller 521 determines the value (S1314).

As a result of the determination, when the value of the transmission characteristic is "00" (S1314), the integrated controller 521 recognizes the program as SDR content, and sets the program as "transmission characteristic = SDR" in various settings (S1314). S1315) is performed, and the process is terminated (S1319).

As a result of the determination, when the value of the transmission characteristic is "10" (S1316), the integrated controller 521 recognizes the program as HDR (HLG method) content, and sets the setting of the program as "transmission characteristic = HDR". (HLG method) ”is set in various ways (S1317), and the process is terminated (S1319).

As a result of the determination, if the value of the transmission characteristic is neither "00" nor "10", the integrated controller 521 sets the program as undisplayable (S1318) and ends the process (S1319).

FIG. 13C shows another example of the processing flow on the receiving side in the second embodiment. As in the case of FIG. 13B, the receiver 500 sets a television capable of receiving the HDR content broadcast program in the 2K broadcast, that is, "10 (VUI transfer_characteristics = 18)" bit-assigned to the transmission characteristics. The television should be recognizable. However, in the processing flow of FIG. 13C, when it is determined that the received program is HDR content, the content is displayed as HDR content or converted to SDR content when displayed on the display 527, for example. It differs from the processing flow of FIG. 13B in that it performs a process of inquiring the user.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) by the broadcast tuner 501, and separates each stream by the demultiplexer 504. The service data / control data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S1320).

The integrated controller 521 extracts the PMT from the transmission control signal (S1321), and further extracts the video decode control descriptor from the PMT (S1322). When the integrated controller 521 extracts the video decode control descriptor, the integrated controller 521 further extracts the transmission characteristic from the video decode control descriptor (S1323). When the integrated controller 521 extracts the transmission characteristic, the integrated controller 521 determines the value (S1324).

As a result of the determination, when the value of the transmission characteristic is "00" (S1324), the integrated controller 521 recognizes the program as SDR content, and sets the program as "transmission characteristic = SDR" in various settings (S1324). S1325) is performed, and the process is terminated (S1331).

As a result of the determination, when the value of the transmission characteristic is "10" (S1326), the integrated controller 521 displays on the display 527 that the program is HDR content via the GUI 520, and receives the receiver. It prompts 500 users to select whether or not to watch the program as HDR content (S1327).

When the user selects to watch the program as HDR (S1328), the integrated controller 521 makes various settings (S1329) with the setting of the program as "transmission characteristic = HDR (HLG method)" and processes it. Is terminated (S1331).

When the user does not choose to watch the program as HDR (S1328), the integrated controller 521 sets the program as "transmission characteristic = SDR" in various settings (S1329) and ends the process (S1331). ..

As a result of the determination, if the value of the service type type is neither "00" nor "10", the integrated controller 521 makes various settings (S1330) so that the program cannot be displayed, and ends the process (S1331).

FIG. 13D shows a television in which the receiver 500 cannot receive the HDR content broadcast program in the 2K broadcast, that is, a television that cannot recognize "10 (VUI transfer_characteristics = 18)" bit-assigned to the transmission characteristics. This is an example of the processing flow in the case of John.

When the receiver 500 receives the broadcast wave, the receiver 500 decodes the multiplexed stream (broadcast signal) with the broadcast tuner 501, and separates each stream by the demultiplexer 504. The control data / service data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S1340).

The integrated controller 521 extracts the PMT from the transmission control signal (S1341), and further extracts the video decode control descriptor from the PMT (S1342). When the integrated controller 521 extracts the video decode control descriptor, the integrated controller 521 further extracts the transmission characteristics (S1343). When the transmission characteristic is extracted, the value is determined (S1344).

As a result of the determination, when the value of the transmission characteristic is "00" (S1344), the integrated controller 521 recognizes the program as SDR content, and sets the program as "transmission characteristic = SDR" in various settings (SDR). S1345) is performed to end the process (S1347).

As a result of the determination, when the value of the transmission characteristic is not "00" (S1344), the integrated controller 521 makes various settings (S1346) so that the program cannot be displayed, and ends the process (S1347).

The processing flow of FIGS. 13A to 13D is a processing flow when the transmission characteristic included in the video decode control descriptor is used as the information for designating the dynamic range of the content. The video-encoded VUI shown in FIG. The dynamic range of the content may be specified using the transfer characteristics (transfer_characteristics) in. In this case, the transmitting side sets a value indicating that the content is HDR content in the transmission characteristic in the VUI based on the video coding syntax, and the receiving side sets the value in the VUI based on the video coding syntax. The transmission characteristics of the above may be analyzed to extract a value indicating that the content is HDR content.

FIG. 13E shows a processing flow of VUI (Video Usability Information) setting in the video coding process on the transmitting side in the second embodiment. The content of this process can be determined by the intention of the transmitting side (for example, the broadcasting station 300 in FIG. 1).

When broadcasting HDR content in 2K broadcasting, the transmitting side, for example, broadcasting station 300, sets the transmission characteristics of the video-encoded VUI as follows.

When the transmitting station 300 starts the VUI setting process in the video coding (S1350), the transmitting station 300 determines whether or not the program to be encoded is an HDR content broadcasting program (S1351). When the program to be encoded is a program of HDR content broadcasting, "18 (= HDR)" is set in the transmission characteristic of the VUI to be encoded (S1352). When the program to be encoded is not a broadcasting service of HDR contents, "1 (= SDR)" is set to the transmission characteristic of the VUI to be encoded (S1353). When the setting of the transmission characteristic is completed, the broadcasting station 300 sets the values of the other fields of the VUI (S1353). When the setting of the values of the other fields of the VUI (S1354) is completed, the broadcasting station 300 ends the VUI setting process in the video coding (S1355).

The broadcasting station 300 multiplexes the generated video coding by the multiplexing unit 305 at a predetermined timing, and transmits it as a broadcast wave via the transmitter 306.

FIG. 13F shows a processing flow of VUI analysis in the video decoding processing on the receiving side in the second embodiment. Here, the receiver 500 is a television capable of receiving a program of HDR content broadcasting in 2K broadcasting, that is, a television capable of recognizing "18" bit-assigned to the video-encoded VUI.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) by the broadcast tuner 501, and separates each stream by the demultiplexer 504. The video stream shown in FIG. 4 is extracted from the separated streams, and the video decoder 506 performs an analysis process of the syntax of the video stream (S1360).

The video decoder 506 extracts the VUI from the video stream (S1361), and further extracts the transmission characteristics from the VUI (S1362). When the video decoder 506 extracts the VUI, the video decoder 506 determines the value (S1363).

As a result of the determination, when the value of the transmission characteristic is "1" (S1363), the video decoder 506 recognizes the decoded program as SDR content, and sets the decoded program as "transmission characteristic = SDR". Various settings (S1364) are performed, and the process ends (S1368).

As a result of the determination, when the value of the transmission characteristic is "18" (S1365), the video decoder 506 recognizes the decoded program as HDR (HLG method) content, and "transmits" the setting of the decoded program. Various settings (S1366) are made as "characteristic = HDR (HLG method)", and the process ends (S1368).

As a result of the determination, if the value of the transmission characteristic is neither "1" nor "18", the video decoder 506 sets the decoded program as undisplayable (S1637) and ends the process (S1368).

The processing of S1318 in FIG. 13B, S1330 in FIG. 13C, S1346 in FIG. 13D, and S1367 in FIG. 13F is set to "set the program as undisplayable". It may be replaced with processing.

FIG. 13G shows an example of a processing flow when only the processing of S1318 in the processing flow of FIG. 13B is replaced with “setting of the corresponding program as SDR” S1378. By adopting such a processing flow, the receiver 500 can display the received program at least without interruption, which may be convenient for some users.

As described above, according to the second embodiment, the receiver 500 can determine whether or not the content is HDR content for each received program, and the receiver setting can be optimized for each program. It will be possible. In particular, the PMT in which the video decode control descriptor is placed has a short retransmission cycle of 200 ms or less, so when the program to be received is switched, for example, when selecting a channel, the receiver 500 optimizes various settings in a short period of time. It becomes possible to do. As a result, the user who uses the receiver 500 can watch the program after tuning without feeling uncomfortable at the time of tuning, which enhances the convenience of the user.

Further, in the second embodiment, not only the transmission characteristics in the video decode control descriptor but also the transmission characteristics in the video-encoded VUI can be used to determine whether the content is HDR content.

Depending on the receiver, when recording the received program and saving it in the HDD 230, for example, the information of the video decode control descriptor or the component descriptor shown in the third embodiment may not be saved. The receiver 500 determines whether the program recorded without such information on the video decode control descriptor and the component descriptor is SDR content or HDR content, and the transmission characteristics and components in the video decode control descriptor. It is possible to discriminate by using the transmission characteristics in the VUI of the video coding instead of using the component type of the descriptor.

When the receiver 500 creates a recorded program list of a recorded program, for example, the receiver 500 reads the program stored in the HDD 230 at an arbitrary timing, and the transmission characteristic in the VUI of the video coding of the program. May be referred to. Alternatively, the receiver 500 may refer to the transmission characteristics in the VUI of the video coding of the program when the user selects a specific program in the recorded program list.

As a result, the receiver 500 can recognize whether the program stored in the HDD 230 is HDR content or SDR content, and can display the recognition result, for example, a recorded program list.

As described above, in an example of playing a program recorded by a certain television receiver on a plurality of television receivers, for example, a plurality of television receivers are connected by a home network and the plurality of television receivers connected to the television receiver are connected to each other. This applies to the case of playing back a recorded program stored in an HDD also connected to a network in the television receiver of the above.

Further, by using the component type (component_type) in the component descriptor shown in the third embodiment described later, the receiver 500 can recognize whether the next program or later is HDR content or SDR content. Is. Therefore, by using the information of both the transmission characteristic of the second embodiment and the component type of the third embodiment, it is possible to determine whether the content is HDR content or SDR content in both the current program and the next program. Is possible. As a result, the receiver 500 can notify the user who is currently watching the program of information on the brightness of the next program in advance, which enhances the convenience of the user.

<Third embodiment>
Next, a third embodiment for realizing HDR content broadcasting in 2K broadcasting will be described.

The third embodiment is for displaying the existence of HDR content broadcasting in 2K broadcasting on the GUI. Displaying the fact that it is an HDR content broadcast on the GUI means, for example, displaying that a certain program is HDR content in the program information display.

Therefore, in the third embodiment, the component content (stream_content) and the component type (component_type) are used as the information for specifying the dynamic range of the content.

Hereinafter, using FIGS. 14A to 14D, the current component descriptors described in Non-Patent Documents 1 to 3 and the component contents and component types arranged therein will be described. ..

FIG. 14A shows the overall structure of the component descriptor described in Non-Patent Document 1. In this descriptor, the component content 1401 and the component type 1402 are arranged.

FIG. 14B shows the bit assignment of the combination of the component content 1401 and the component type 1402. For example, when the component content = 0x1 and the component type = 0xB3, it means that the encoded video format is 1080i (1125i), the aspect ratio is 16: 9, and there is no pan vector.

FIG. 14C shows the bit assignment of the component type described in Non-Patent Document 2 (related to terrestrial digital television broadcasting).

FIG. 14D shows the bit assignment of the component type described in Non-Patent Document 3 (BS / wideband CS digital broadcasting related).

Therefore, in the third embodiment, in order to display on the GUI that it is HDR content broadcasting, the component contents and component types described in Non-Patent Document 1 shown in FIG. 14B, and the terrestrial digital television shown in FIG. 14C. The component contents and component types operated in broadcasting and the component contents and component types operated in BS / broadband CS digital broadcasting shown in FIG. 14D are expanded and used. An example of the extension will be described below.

FIG. 15A shows an extended example of the bit assignment of the component type shown in FIG. 14B. The "component type = 0xB4" of 1501 and the "component type = 0xE4" of 1503 are extended bit assignments. For example, when the component content = 0x9 and the component type = 0xB4, 1501, the video coding codec type is H. It means that the HDR content has 265, the encoded video format is 1080i (1125i), and the aspect ratio is 16: 9. This transforms the undefined regions 1403 and 1404 shown in FIG. 14B into regions 1502 and 1504 in FIG. 15A.

FIG. 15B shows an example in which the extension of FIG. 15A is applied to the bit assignment in the case of operation in the terrestrial digital television broadcasting shown in FIG. 14C. The bit assignments from 1505 to 1508 are extended in the operation of terrestrial digital television broadcasting in response to the expansion shown in FIG. 15A. 1501 in the extension of FIG. 15A corresponds to 1506 and 1503 in the extension of FIG. 15A corresponds to 1508. In addition, with the addition of codec types, 1505 and 1507 have also been added.

FIG. 15C shows an example in which the extension of FIG. 15A is applied to the bit assignment in the case of operating in the BS / wideband CS digital broadcasting shown in FIG. 14D. The bit assignments from 1509 to 1512 are extended in the operation of BS / wideband CS digital broadcasting in response to the expansion shown in FIG. 15A. 1501 in the extension of FIG. 15A corresponds to 1510 and 1503 in the extension of FIG. 15A corresponds to 1512. In addition, 1509 and 1511 have been added along with the addition of codec types.

FIG. 16A shows an example of a processing flow on the transmitting side in the third embodiment. The content of this process can be determined by the intention of the transmitting side (for example, the broadcasting station 300 in FIG. 3).

When broadcasting HDR content in 2K broadcasting, the transmitting side, for example, broadcasting station 300, sets the value of each field of the component descriptor as follows.

When the transmitting station 200 starts the process of setting the value of each field of the component descriptor (S1600), the transmitting station 200 determines whether or not the program is an HDR content broadcasting program (S1601). If the program is an HDR content broadcast program, the combination of component descriptors (component content, component type) includes "H.265 | MPEG-H HEVC, video 1080i (1125i), aspect ratio 16: 9, HDR". = (0x9, 0xB4) or "H.265 | MPEG-H HEVC, video 1080p (1125p), aspect ratio 16: 9, with HDR" = (0x9, 0xE4) is set (S1602). If the program is not an HDR content broadcast program, add "Video 1080i (1125i), aspect ratio 16: 9, no pan vector" = (0x1, 0xB3) to the combination of (component content, component type) in the component descriptor. Set (S1603).

The transmitting station 300 subsequently sets necessary information in the language code or the like, which is another field of the component descriptor (S1604). After setting the required values in all the fields of the component descriptor, the transmitting station 300 sets the required values in all the fields of the EIT including the component descriptor, generates an EIT (S1605), and ends the process. (S1606).

The broadcasting station 300 multiplexes the generated EIT by the multiplexing unit 305 shown in FIG. 3 at a predetermined timing, and transmits it as a broadcast wave via the transmitter 306.

FIG. 16B shows an example of a processing flow on the receiving side in the third embodiment. Here, the receiver 500 recognizes a television capable of receiving an HDR content broadcast program in 2K broadcasting, that is, (0x9, 0xB4) (0x9, 0xE4) of a combination of bit assignments (component content, component type). Make it a television that can be done.

Upon receiving the broadcast wave, the receiver 500 demodulates the multiplexed stream (broadcast signal) by the broadcast tuner 501, and separates each stream by the demultiplexer 504. The service data / control data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S1610).

The integrated controller 521 extracts the EIT from the transmission control signal (S1611), and further extracts the component descriptor from the EIT (S1612). When the integrated controller 521 extracts the component descriptor, it further extracts the component contents and the component type (S1613). When the integrated controller 521 extracts the component contents and the component types, the integrated controller 521 determines each value (S1614).

As a result of the determination, when the combination of the values of (component content, component type) is (0x1, 0xB3) (S1614), the integrated controller 521 sets the program to "video 1080i (1125i), aspect ratio 16: 9". Recognizes that the content is "without pan vector", sets various settings (S1615) as "component type" = "video 1080i (1125i), aspect ratio 16: 9, no pan vector" of the program, and ends the process. (S1619).

As a result of the determination, when the combination of the values of (component content, component type) is either (0x9, 0xB4) or (0x9, 0xE4) (S1616), the integrated controller 521 sets the program to "H.265 | MPEG-H HEVC, video 1080i (1125i), aspect ratio 16: 9, with HDR "or" H.265 | MPEG-H
Recognizing that the content is "HEVC, video 1080p (1125p), aspect ratio 16: 9, with HDR", set the program to "H.265 | MPEG-H HEVC, video 1080i (1125i), aspect ratio 16: Various settings (S1617) are made as "9, with HDR" or "H.265 | MPEG-H HEVC, video 1080p (1125p), aspect ratio 16: 9, with HDR", and the process ends (S1619).

As a result of the determination, if the combination of the values of (component content, component type) is neither (0x1, 0xB3) (0x9, 0xB4) (0x9, 0xE4), the integrated controller 521 does not display the setting of the program. It is set as possible (S1618) and the process is terminated (S1619).

FIG. 16C shows televisions in which the receiver 500 cannot receive HDR content broadcast programs in 2K broadcasting, that is, (0x9, 0xB4) (0x9, 0xE4) of a combination of bit assignments (component content, component type). This is an example of the processing flow in the case of a television that cannot recognize.

When the receiver 500 receives the broadcast wave, the receiver 500 decodes the multiplexed stream (broadcast signal) with the broadcast tuner 501, and separates each stream by the demultiplexer 504. The control data / service data shown in FIG. 4 is extracted from the separated streams, and the integrated controller 521 analyzes the transmission control signal (S1640).

The integrated controller 521 extracts the PMT from the transmission control signal (S1641), and further extracts the component descriptor from the PMT (S1642). When the integrated controller 521 extracts the component descriptor, it further extracts the component type (S1643). When the integrated controller 521 extracts the component type, the integrated controller 521 determines the value thereof (S1644).

As a result of the determination, when the value of the component type is "0xB3" (S1644), the integrated controller 521 sets the program to "video 1080i (1125i), aspect ratio 16: 9, no pan vector". (S1645), various settings (S1645) are made with the program "component type" = "video 1080i (1125i), aspect ratio 16: 9, no pan vector", and the process ends (S1647).

As a result of the determination, if the value of the component type is not "0xB3", the integrated controller 521 sets the setting of the program as undisplayable (S1646) and ends the process (S1647).

The processing of S1618 of FIG. 16B and S1646 of FIG. 16C is set to "set the program as undisplayable", but like the processing flow of FIG. 13G of the second embodiment, for example, "the setting of the program is set as SDR". It may be replaced with the process of "setting".

From the above, the receiver 500 can determine whether or not it is HDR content for each program to be received. EIT is a table containing time-series information about programs included in each service (organization channel). By adding information that specifies the dynamic range of the content to the component type according to the processing flow shown in FIGS. 16A to 16C above, for example, the content type of HDR content / SDR content can be added to the program information scheduled to be broadcast in the future. It becomes possible to add, and the convenience when the user selects a program to watch is enhanced. In addition, this makes it possible for the transmitting side to appeal in the program guide that the broadcasting service using the HDR content is being implemented, and it is possible to increase the user satisfaction with the created HDR content.

Further, the receiver 500 sets the receiver 500 and the display 220 to the optimum state in accordance with the dynamic range of each program not only for viewing the broadcasted program but also for playing back the recorded program. It is possible. When the receiver 500 records the received program and saves it in the HDD 230, for example, the receiver 500 also saves the information of the component descriptor. As a result, the receiver 500 determines whether the recorded program is HDR content or SDR content by using the component type in the component descriptor when creating the recording list of the recorded program. For example, it is possible to display whether the program is HDR content or SDR content on the recording list based on the determination result. As a result, the user who uses the receiver 500 can know whether the program is HDR content or SDR content even when playing back the recorded program, which enhances the convenience of the user.

The processing flow of FIGS. 16A to 16C is a case where the component type of the component descriptor is used as the information for specifying the dynamic range. For example, genre 1 (content_nibble_level_1) or genre 2 (content_nibble_level_2) in the content descriptor (content descriptor). It is also possible to use.

Hereinafter, the current content descriptor described in Non-Patent Document 1 and the genres 1 and 2 arranged therein will be described with reference to FIGS. 17A to 17D.

FIG. 17A shows the overall structure of the content descriptor, which is the descriptor described in Non-Patent Document 1 (related to digital broadcasting). In the figure, 1701 indicates genre 1 (content_nibble_level_1), and 1702 indicates genre 2 (content_nibble_level_2). Genre 1 indicates a major classification of genres. Genre 2 indicates a middle classification in each major classification of genre 1.

The maximum number of loops N in FIG. 17A is 7, and a plurality of content_nibble and user_nibble can be set in one content descriptor. The maximum number of content_nibble_level1 and content_nibble_level2 that can be set in one content descriptor as defined in Non-Patent Document 2 or Non-Patent Document 3 is 3.

FIG. 17B shows bit assignments for the genre classification of genre 1. The major genre classifications in the figure represent genre 1.

17C and 17D show bit assignments for the genre classification of genre 2 (content_nibble_level_2). FIG. 17C shows the bit assignment of genre 2 (content_nibble_level_2) when genre 1 (content_nibble_level_1) = 0x6 (movie), and FIG. 17D shows the bit assignment of genre 2 when genre 1 = 0x8 (documentary / education). ing.

Therefore, in order to display on the GUI that it is an HDR content broadcast, the genre 1 shown in FIG. 17B or the genre 2 shown in FIGS. 17C and 17D is expanded and used.

FIG. 18A is an example in which HDR content 1801 is added to the genre 1 shown in FIG. 17B. As a result, the spare 1703 shown in FIG. 17B is changed to the spare 1802 shown in FIG. 18A.

FIG. 18B is an example in which HDR content 1803 is added to the genre 2 shown in FIG. 17C.

Similarly, FIG. 18C is an example in which HDR content 1804 is added to the genre 2 shown in FIG. 17D.

In addition to FIGS. 18A, 18B and 18C, "HDR content = 0x0" may be added to genre 2 in "genre 1 = other (0xF)" of FIG. 17B, for example.

When broadcasting HDR content of a movie genre, for example, by using the extension of the genre shown above, the transmitting side uses the extended genre 1 shown in FIG. 18A to "genre 1 = movie (0x6)" and " "Genre 1 = HDR content (0xc)" may be set and transmitted. The receiving side 500 extracts all the genres 1 and 2 from the received content descriptors, so that the contents are genre 1 = movie (0x6) and genre 1 = HDR contents (0xc). Can be recognized. That is, the receiver 500 can recognize that the received content is the HDR content of the movie.

Further, for example, when broadcasting HDR content of a movie genre, the transmitting side uses the extended genre 2 shown in FIG. 18B to "genre 1 =" movie (0x6) "and" genre 2 = HDR content (0x3) ". Can also be set and sent. The receiver 500 extracts all genres 1 and 2 from the received content descriptors, so that the contents are "genre 1 = movie (0x6)" and "genre 2 = HDR contents (0x3)". You can recognize that there is. That is, the receiver 500 can recognize that the received content is the HDR content of the movie.

Furthermore, for example, when broadcasting HDR content of a movie genre, genre 1 = "movie (0x6)", "genre 1 = other (0xF)" and "genre 2 = HDR content (0x0)" are set and transmitted. You can also do it. The receiver 500 extracts all genres 1 and 2 from the received content descriptors, and the contents are "genre 1 = movie (0x6)", "genre 1 = other (0xF)" and " It can be recognized that "genre 2 = HDR content (0x0)". That is, the receiver 500 can recognize that the received content is the HDR content of the movie.

The processing on the transmitting side and the processing on the receiving side is a component of the processing flow of FIGS. 16A to 16C even when genre 1 or genre 2 in the content descriptor is used to specify the dynamic range of the content. The same processing flow can be obtained simply by replacing the descriptor with the content descriptor and the combination of the component contents and the component type with the combination of genre 1 and genre 2.

Further, when the user searches for a program, there is a method of searching by specifying a genre. In this case, the receiver 500 uses the information of the genre 1 and the genre 2 of each content to narrow down the content corresponding to the genre input by the user. By adding "HDR content" to genre 1 and genre 2 as shown in FIGS. 18A, 18B and 18C, when the user specifies "HDR content" as the genre, the receiver 500 is included in all the contents. It is possible to narrow down the HDR content from.

As a form of broadcasting a program, there is what is called event sharing. By describing the same ES_PID in the elementary_PID field of PMT of multiple services (channels), it is possible to watch the same event (program) regardless of which service (channel) is watched. Is. The PMT includes information indicating the location of a TS packet that transmits each coded signal (a coded signal such as a video coded signal or an audio coded signal) that constitutes a program. In the elementary_PID field in the PMT, ES_PID, which is the PID (Packet ID) of the TS packet for transmitting each coded signal, is described. The value of elementary_PID is basically unchanged during the program.

FIG. 19A is a diagram showing the state of ES_PID described in the elementary_PID field of PMT of each event (program) with the vertical axis representing service_id and the horizontal axis representing time. The squares in the figure represent one event (program). service_id is an identification value assigned to each service, and is a unique value assigned to each organization channel in television broadcasting nationwide. The service_id is arranged in the service list descriptor shown in FIG. 7A, is included in the NIT (Network Information Table), and is sent to the receiver.

In the example of FIG. 19A, ES_PID = 0x0030, 0x0031, 0x0032 are assigned to each of service_id = 101, 102, and 103 until 20:00. On the other hand, between time 20:00 and time 21:00 (section = T1), ES_PID = 0x0033, which is the same ES_PID, is assigned to each of service_id = 101, 102, and 103. This indicates that the three train channels corresponding to service_id = 101, 102, and 103 are composed of the same coded signals between the time 20:00 and the time 21:00 (section = T1). There is. That is, the user can watch a program composed of the same coded signal (same broadcast content) regardless of which of the three channels corresponding to service_id = 101, 102, 103 is selected.

In the section = T1 where this event sharing is performed, the video coded signal and the audio coded signal of ES_PID0x0033 are sent using any one band of service_id = 101, 102, 103, and the remaining two bands. No video-encoded signal or audio-encoded signal is sent. In the example of FIG. 19A, for example, the video coded signal and voice coded signal of ES_PID0x0033 are sent using the band of service_id = 101, and the video coded signal and voice coded of ES_PID0x0033 are sent in the band of service_id = 102 and service_id = 103. This is an example where no signal is sent.

When event sharing is performed, the video-encoded signal and the audio-encoded signal are sent in only one of the bands, and the encoded signal is not sent in the remaining bands. It is possible to use the band that is not sent for other purposes.

Since the amount of information of HDR content is larger than that of SDR content, it is possible that a bandwidth wider than the bandwidth of the current broadcast wave may be required when performing HDR content broadcasting in the current 2K broadcasting. As a method of securing a bandwidth wider than the current bandwidth, for example, a method of using a band in which the video-encoded signal and the audio-encoded signal are not sent by using the event sharing shown in FIG. 19B can be considered.

FIG. 19B is a diagram showing an example in which a wide bandwidth for transmitting HDR content is secured by using service_id = 101 and service_id = 102 by event sharing. In the example of FIG. 19B, the video coded signal (ES_PID =) of the HDR content is used between the time 20:00 and the time 21:00 (interval = T2) using the two bands of service_id = 101 and 102 where the event is shared. 0x0034) This is an example of transmission.

According to the first to third embodiments described above, the receiver 500 can recognize that the content transmitted by the broadcast wave is HDR content at various timings.

Hereinafter, the content to be displayed on the display 527 when the receiver 500 recognizes that the content transmitted by the broadcast wave is the HDR content will be described based on the specific usage scene of the receiver 500. ..

FIG. 20A is an example of the display contents of the 12-position list displayed by the display 527 when the receiver 500 creates the 12-position list.

The receiver 500 uses the service type (service_type) as described in the first embodiment to determine whether the target channel is a channel that broadcasts HDR content when creating a 12-position list. Can be done.

FIG. 20A is displayed on the display 527 when 27ch is determined to be HDR content broadcasting as a result of determining the service type of each service (channel) based on the processing flow shown in FIG. 9B by the receiver 500. An example of the display contents of the 12 position list to be displayed is shown. The display 2001 of the HDR content broadcast indicates that 27ch is an HDR content broadcast.

FIG. 20B is another example of the display contents of the 12-position list when the receiver 500 creates the 12-position list.

As explained earlier, event sharing may be used to broadcast HDR content in 2K broadcasts. When sharing an event The receiver 500 recognizes that a plurality of channels of the broadcasting service from the same broadcasting station are HDR content broadcasting by the process shown in FIG. 9B. In this case, the 12-position list display may be able to imagine that the video-encoded data constituting one program is transmitted by a plurality of channels, for example, as shown in FIG. 20B. In the example of FIG. 20B, 26ch and 27ch are surrounded by one frame so that one program of HDR content can be imagined using 27ch and 26ch, and the frame is HDR content broadcasting. This is an example of visually displaying.

Visually displaying that the HDR content broadcasting is as shown in FIG. 20B also has the effect of intuitively appealing to the user of the receiver 500 that the HDR content broadcasting is superior to the SDR content broadcasting. is there.

FIG. 20C is another example of the display contents of the 12-position list when the receiver creates the 12-position list.

As shown in the process of FIG. 9C, in the conventional 2K television in which only "digital TV service" can be identified as the service format type, even if there is a service (channel) that broadcasts HDR content, the influence of its existence. Existence can be ignored without receiving. FIG. 20C is an example of displaying a 12-position list in a conventional 2K television in which only the service type type = "digital TV service" can be discriminated when HDR content broadcasting as shown in FIG. 20A exists. .. The HDR content broadcasting channel 2001 existing in the 12 position list shown in FIG. 20A is not displayed as shown in 2002 in FIG. 20C.

As described above, in the first embodiment, at the stage of creating the 12-position list, the conventional 2K television can exclude the HDR content broadcast from the reception target, so that the conventional 2K television mistakenly selects the HDR content. There is no trouble of displaying. Therefore, not only the convenience of the user of the receiver 500 but also the convenience of the user of the conventional 2K television is improved.

FIG. 21A is an example of a case where the user selects or watches a program that can be received by the receiver 500 and clearly indicates whether the program displayed by the display 527 is an HDR content broadcast or an SDR content broadcast. is there.

The receiver 500 uses the component contents and the component types in the component descriptor as described in the third embodiment, so that the program currently being received by the receiver 500 and the program to be broadcast from now on are HDR contents. It is possible to recognize whether it is a broadcast or an SDR content broadcast. The receiver 500 can also present the recognized result to the user.

FIG. 21A shows a case where the receiver 500 determines that the program is SDR content broadcasting as a result of determining the transmission characteristics of the program selected or viewed by the user based on the processing flow shown in FIG. 16B. This is an example of displaying on the display 527 that the program is an SDR content broadcast. The receiver 500 displays "SDR broadcast" 2101 at the lower right of the display screen to indicate that the program is an HDR content broadcast.

In FIG. 21B, as a result of the receiver 500 determining the transmission characteristics of the next program based on the processing flow shown in FIG. 16B with respect to the state shown in FIG. 21A, it was determined that the next program is HDR content broadcasting. In this case, it is an example in which the display 527 clearly indicates that the next program is an HDR content broadcast. The receiver 500 displays "SDR broadcast ⇒ HDR broadcast" 2102 at the lower right of the display screen, indicating that the current program is an SDR content broadcast and the next program is an HDR content broadcast.

Further, the receiver 500 can display the progress status of the current program together by using other PSI (Program Specific Information) and SI (Service Information) information related to the program.

FIG. 21C is an example showing the progress of SDR content broadcasting, which is the current program. The horizontal length of the hatched part of 2103 "SDR broadcast" indicates the progress of the program. As a result, the user of the receiver 500 can easily grasp the time until the timing of switching to HDR content broadcasting. Furthermore, when the timing of switching from SDR content broadcasting to HDR content broadcasting is near, the display of "HDR broadcasting" is enlarged to further understand that the user of the receiver 500 is approaching the switching time to HDR content broadcasting. It can also be made easier.

FIG. 21D is an example in which the display of “HDR broadcasting” is enlarged as shown in 2104 in order to make it easier to understand that the switching time to HDR content broadcasting is approaching.

The HDR content broadcasting service in 2K broadcasting includes a plurality of program data in one program of simultaneously broadcasting HDR content broadcasting and SDR content broadcasting in consideration of users using existing 2K broadcasting compatible televisions. It is expected that the broadcast format will be changed. In other words, HDR content broadcasting in 2K broadcasting is a broadcasting form in which while broadcasting HDR content broadcasting programs, SDR content broadcasting programs are also broadcast in parallel for users who are using existing 2K broadcasting compatible televisions. Is expected to be.

In one event (program), a plurality of ESs (ElementaryStream, basic stream, which correspond to encoded video, audio, and independent data), which are program data, can be defined. As defined in Non-Patent Document 2, the ES is assigned a component tag (component_tag) value described in a stream identifier descriptor arranged in the PMT. A component tag is an 8-bit field and is a label for identifying a component stream. The component tag value assigned to each ES is unique within the service (channel). The component tag value of this stream identification descriptor is the same as the component tag value of the component descriptor shown in FIG. 14A.

When a plurality of program data ESs exist in an event (program), the ES that is first displayed on the display 527 of the receiver 500 when the service is selected is called a default ES.

The component tag value of the default ES is defined in Non-Patent Document 2 as follows.

The component tag values of the default ES are: -Video stream: Component tag value = 0x00-Audio stream: Component tag value = 0x010
As explained earlier, considering the users who are using the existing 2K broadcasting compatible television, the broadcasting form in which one program includes a plurality of program data, that is, HDR content broadcasting and SDR content broadcasting are broadcast at the same time. Is expected to be.

As a method of realizing such a broadcasting form, as method 1, (1-1) the default ES is set as SDR content.

(1-2) HDR content other than the default ES.

There is a way.

By assigning HDR content / SDR content to the default ES in this way, users using existing 2K broadcast compatible televisions can watch the program as before even if HDR content broadcast exists. Is possible.

When this method 1 is realized, the processing on the transmitting side is among the program data existing in a plurality of events (programs).
(1-3) Set the component tag value of the SDR content to 0x00 (1-4) Set the component tag value of the HDR content to something other than 0x00 (for example, 0x04) to create and transmit the PMT.

This processing becomes the same processing flow only by replacing the video decode control descriptor of the processing flow of FIG. 13A of the second embodiment with the stream descriptor and the transmission characteristic with the component tag.

Further, the processing on the receiving side when this method 1 is realized is to analyze the inside of the PMT (1-5) and display the component tag value = 0x00 as the default ES on the display 527 of the receiver 500.

This processing becomes the same processing flow only by replacing the video decode control descriptor of the processing flow of FIG. 13D, which is the processing flow of the existing 2K broadcasting compatible television, with the stream descriptor and the transmission characteristic with the component tag.

That is, even if HDR content broadcasting and SDR content broadcasting are simultaneously broadcast in one program, by setting the default ES as in (1-3) and (1-4) above, the existing 2K broadcasting compatible TV John will be able to watch the SDR content broadcast as before.

In this case, the user who is viewing the receiver 500 capable of displaying the HDR content may be prompted to select which program to watch, for example, SDR content broadcasting or HDR content broadcasting.

FIG. 22A is an example of a display screen that prompts the user to select whether to watch the SDR content broadcast or the HDR content broadcast in the program including the HDR content broadcast and the SDR content. In this example, the current program is SDR content broadcasting. Further, the next program is a program including a plurality of program data, and the default ES is an SDR content broadcast, and the non-default ES is an HDR content broadcast.

2201 indicates that when the next program contains a plurality of program data, one of them is the SDR content broadcast which is the default ES, and the other is the two programs of the HDR content broadcast which is other than the default ES. There is.

Further, 2202 is an example in which the user of the receiver 500 is prompted to select whether or not to watch the HDR content broadcast other than the default ES as the next program.

FIG. 22B shows that the next program includes a plurality of program data as in FIG. 22A, one of which is the SDR content broadcast which is the default ES, and the other is the HDR content broadcast which is other than the default ES. This is an example. Among the displays of the next program 2203, the display "SDR broadcast" indicating the SDR content broadcast, which is the program to be displayed by default, is displayed in a large size.

With such a display, the user can easily recognize that the program displayed by default as the next program is the SDR content broadcast. As a result, for example, as shown in FIG. 22A, "The next program can watch HDR content. Do you want to watch HDR content?" 2202 is displayed to prompt the selection of HDR content other than the default ES. It is no longer necessary, and the display content of the display screen can be simplified. Depending on the user, simplification of the display content may be required, and displaying the display content such as 2203 has an advantage that the display content is not bothersome. In this case, the user may select himself / herself so that the HDR content can be viewed as the next program according to the display content of 2203.

In contrast to the method 1 described above, the following method 2 can be further considered.

(2-1) Set the default ES as the SDR content (2-2) Define the HDR content as the second default ES other than the default ES and assign the component tag value (for example, the component tag value = 0x08 is set to the second). Assign as default ES).

In this method 2, in a television receiver capable of recognizing the component tag value = 0x08 of the second default ES, if the PMT includes the component tag value = 0x08 which is the second default ES, the second method 2 is performed. The default ES is prioritized over the default ES, and the HDR content, which is the second default ES, is displayed on the display screen of the television receiver.

The processing on the transmitting side when the method 2 is realized is the same as the processing on the transmitting side in the case of the method 1. However, the component tag value of the HDR content data is set to 0x08.

Further, in the processing on the receiving side when this method 2 is realized, when the inside of the PMT is analyzed and (1-3) the component tag value = 0x08 is recognized, the second default ES takes precedence over the default ES. The HDR content is displayed on the display 527 of the receiver 500.

By the method 2, a user having a television receiver capable of receiving HDR content can view the HDR content without any special operation when there is a program of HDR content broadcasting, and the user can view the HDR content. Convenience is improved. Also, some users may want to view SDR content instead of HDR content. In this case, a display prompting the selection of "Do you want to watch the SDR content?" May be performed, as in the display prompting the selection shown in 2202 of FIG. 22A.

FIG. 23 is an example of displaying a program guide including HDR content broadcasting. When the receiver 500 recognizes that the program is an HDR content program based on the process of FIG. 16B as described in the third embodiment, the program table indicates that the program is an HDR content broadcast. This is an example of doing. The display of the HDR broadcast from 2301 to 2303 indicates that the corresponding program is an HDR content broadcast program.

In addition, an HDR content broadcast program may be included as a program containing a plurality of program data. Reference numeral 2303 is a display example in which the default ES is a program of SDR content broadcasting as a program including a plurality of program data, and a program of HDR content broadcasting is included in addition to the default ES. This is an example in which the display of the SDR content broadcast, which is a program of the default ES, is displayed large, and the display of the HDR content broadcast, which is a program other than the default ES, is displayed small.

It is also possible to add an indication of whether the program is HDR content or SDR content to the detailed information of each program in the program guide or the display content of the recording list.

24A and 24B are examples of displaying detailed information of each program in the program guide, and FIGS. 25A and 25B are examples of adding the display of whether the program is HDR content or SDR content to the display content of the recording list. Shown.

FIG. 24A is an example of the display of the detailed information display 2400 regarding the program, which is displayed when the program name = high-definition adventure shown in 2302 shown in FIG. 23 is selected by using a TV remote controller or the like.

Area 2401 is an area indicating whether the program displayed by default is SDR content or HDR content when the program includes a plurality of program data. In the example of FIG. 24A, the program displayed by default is SDR content.

Area 2402 is an area indicating whether the program other than the program displayed other than the default is SDR content or HDR content when the program includes a plurality of program data. In the example of FIG. 24A, it is shown that the programs other than the programs displayed by default are HDR contents.

Area 2404 is an area indicating that the display of the SDR content and the HDR content can be switched when the program includes a plurality of program data and the plurality of programs include two of the SDR content and the HDR content. Is.

Further, unlike the methods 1 and 2 described above, the receiver 500 uses the contents set by the receiver 500 as the method 3 when displaying a program including a plurality of program data, regardless of the default ES setting contents. It is also possible to set the content to be displayed on the display 527 based on the above.

Area 2405 is a selection button selected by the user when displaying HDR content on the display 527 regardless of the default ES of the corresponding program. Similarly, the area 2406 is a selection button selected by the user when displaying the SDR content on the display 527 regardless of the default ES of the program.

When the user presses the "Select HDR display" 2405 or "Select SDR display" 2406 button using, for example, a television remote control, the receiver 500 receives the SDR content broadcast selected by the user regardless of the default ES. A program or a program of HDR content broadcasting can be displayed on the display 527 by default.

The area 2403 is an area for displaying a lead wire to a recording function when recording an SDR program and an HDR program in a program including a plurality of program data. Compared to SDR content, HDR content tends to have a larger recording size when recorded because it has a wider dynamic range. Therefore, as shown in FIG. 24A, the display may be devised so that the content to be recorded can be easily selected according to the user's preference. For example, as shown in FIG. 24A, a display that recommends recording of SDR content to a user who wants to reduce the recording size, and a display that recommends recording of HDR content to a user who wants to pursue a beautiful display. You may.

FIG. 24B shows a case where the user presses the “Select HDR display” button 2415 and selects HDR content as the content to be displayed on the display 527 by default regardless of the default ES of the corresponding program in the program including a plurality of program data. Is a display example of. When the user selects "Select HDR display" 2415, the area 2411 of the detailed information display 2410 is switched from the "SDR display" of the area 2401 of the detailed information display 2400 to the "HDR display". At the same time, the area 2412, which is an area for displaying programs other than the programs displayed by default on the display 527, is switched from the “HDR display” of the area 2402 of the detailed information display 2400 to the “SDR display”. As a result, the HDR content selected by the user by pressing the button 2415 is displayed on the display 527 by default regardless of the setting content of the default ES in the descriptor.

FIG. 25A is an example of the display contents of the recording list. Area 2501 indicates the time zone of the program in the recording list displayed on the display 527. Area 2502 indicates the current time. Area 2503 is an area for displaying thumbnails of programs in the recording list when the user puts the cursor on them. Below the place where the thumbnail is displayed, detailed information of the program is displayed. In the example of FIG. 25A, the cursor is on the program of 2504, and the thumbnail of the program is displayed on 2503.

When a program containing a plurality of program data is recorded, all of the plurality of program data may be saved depending on the receiver. In this case, if the plurality of program data includes the HDR content broadcast, the recording list of the receiver that cannot recognize the HDR content broadcast does not indicate that the HDR content is recorded as shown in FIG. 25A. The program data displayed in the recording list of FIG. 25A can be referred to by, for example, a receiver 500 that exists on a home network to which a plurality of television receivers are connected and can recognize HDR content broadcasting.

In this case, the receiver 500 capable of recognizing the HDR content broadcast uses the value of the component type in the component descriptor shown in the third embodiment, or the second embodiment when the component type is not saved. By referring to the value of the transmission characteristic arranged in the VUI in the shown video coding, it is possible to display that the HDR content is recorded.

FIG. 25B shows the HDR content as a result of the receiver 500 referring to the data in which the program in the recording list of FIG. 25A is stored and referring to the value of the transmission characteristic arranged in the VUI in the video coding of the program. This is an example of displaying that fact for a program that was found to be. In the area 2515, detailed information of the program 2514 on which the cursor is located is described, and it is displayed that the program is an HDR content broadcast.

In this way, the present embodiment can determine whether or not the program is HDR content even for the recorded program.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof. Furthermore, in each of the constituent elements of the claim, even if the constituent elements are divided and expressed, a plurality of the constituent elements are expressed together, or a combination thereof is expressed, it is within the scope of the present invention. Further, the apparatus of the present invention is applied even when the claim is expressed as a control logic, when it is expressed as a program including an instruction for executing a computer, and when it is expressed as a computer-readable recording medium in which the instruction is described. is there. Further, the names and terms used are not limited, and other expressions are included in the present invention as long as they have substantially the same contents and the same purpose.

200 ... Broadcasting station, 201 ... Broadcasting station server, 202 ... First security function, 203 ... First basic function, 210 ... Receiver, 211 ... Second basic Function, 212 ... Second security function, 214 ... Application management function, 215 ... Application, 220 ... Display, 230 ... HDD, 301 ... Video encoder, 506 ... Video decoder, 521 ... integrated controller, 527 ... display, 528 ... speaker.

Claims (4)

When transmitting a 1080 / i or 1080/60 / p video signal included in the broadcast signal as 2K broadcasting, High Efficiency Video Coding (HEVC) is adopted as the coding type of the video signal. In a broadcast signal generation method using a control means for describing information specifying the dynamic range of the video signal in video usability information (Video_usablity_information: VUI) inserted into the video stream of HEVC.
The control means
A transmission control signal different from the VUI is arranged for the broadcast signal,
Information corresponding to the transmission characteristics in the VUI is also arranged in the transmission control signal, and the dynamic range of the video signal is set to a position different from the information corresponding to the transmission characteristics. : HDR) is described, and the identification information also identifies the 1080 / i or 1080/60 / p by the component type (Component_Typ), and further, the component type (Component_Typ). Component_Typ) also identifies the aspect ratio,
A broadcasting signal generation method characterized by that. The identification information also identifies the 1080 / i or 1080/60 / p by the component type (Component_Typ), and the dynamic range of the video signal is the High Dynamic Range (HDR). Is identifying,
The broadcast signal generation method according to claim 1. When transmitting a 1080 / i or 1080/60 / p video signal included in the broadcast signal as 2K broadcasting, High Efficiency Video Coding (HEVC) is adopted as the coding type of the video signal. In a broadcast signal transmission device using a control means for describing information specifying the dynamic range of the video signal in video usability information (Video_usablity_information: VUI) inserted into the video stream of HEVC.
The control means
A means for arranging a transmission control signal different from the VUI with respect to the broadcast signal, and
Information corresponding to the transmission characteristics in the VUI is also arranged in the transmission control signal, and the dynamic range of the video signal is set to a position different from the information corresponding to the transmission characteristics. : HDR) is described, and the identification information is used to identify the 1080 / i or 1080/60 / p by the component type (Component_Typ), and further, the component type (Component_Typ). A means to identify the aspect ratio by Component_Typ),
A broadcast signal generator, characterized in that it comprises. The identification information also identifies the 1080 / i or 1080/60 / p by the component type (Component_Typ), and the dynamic range of the video signal is the High Dynamic Range (HDR). The broadcast signal generation device according to claim 3, wherein the broadcast signal generator is identified.

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