TW202013982A - Information processing device, information processing method, and program - Google Patents

Abstract

The present invention acquires program information from an MMT-format-compliant control information record table, generates an MMT packet sequence or a TS packet sequence including a program information storage packet, and transmits the generated packet sequence, allowing the program information to be utilized at a transmission destination. The present invention has a data processing unit for inputting MMT format data and generating transmission data to be transmitted to a network-connected device. The data processing unit acquires program information compatible with the MMT format data, generates a program information record table, and generates transmission data that includes a program information storage packet. The data processing unit acquires program information from a control information record table such as an MMT-format-compliant event information table (MH-EIT) and transmits transmission data composed of an MMT packet sequence or a TS packet sequence, allowing the program information to be utilized at a transmission destination.

Description

Information processing device, and information processing method, and program

This disclosure relates to information processing devices, information processing methods, and programs. More specifically, it is about the MMT (MPEG Media Transport) data that is scheduled to be standardized as a future data transmission standard for broadcast waves, etc., and the receiving device that receives it sends the received data to other devices. At the same time, by transmitting program information together, an information processing device, an information processing method, and a program that can utilize program information in a data transmission destination can be realized.

At present, the standardization required for data transmission of high-quality images such as 4K images or 8K images is underway. As one of them, the research on the data transmission method using MMT (MPEG Media Transport) format is under way. get on.

The MMT format stipulates the control information (SI) formed by various management information such as video (audio), audio (audio), subtitle (subtitle), etc. that constitute content, or control information or attribute information. : Signaling Information (control information)), etc., data transmission method (transmission format) transmitted by broadcast wave or network.

The MMT format is expected to be used for broadcasting of next-generation content such as 4K video and High Dynamic Range (HDR) video. In addition, as the prior art that has been disclosed regarding data reception and data processing in accordance with the MMT format, there is, for example, Patent Document 1 (International Publication No. WO2018/016294).

The broadcasting station transmits various program contents in accordance with the MMT format. The broadcasting station also records the program information corresponding to the program, for example, the title of the program, the broadcast date and time, the artist, etc., and records it in various tables that constitute the control information (SI) and transmits it. .

The receiving device receiving MMT format data is supposed to be various devices such as TV, set-top box (STB), PC and so on. These receiving devices can obtain program information such as the title of the program, broadcast date and time, and performers from the control information (SI) received by the broadcasting station.

The program content received by the receiving device is sometimes forwarded to other network-connected devices, where it is viewed and used in the forwarding destination. In this case, I want to determine the program information, that is, the program title, broadcast date and time, and the artist's program information will also be used in the transfer destination, but at the current point of time, there is no transfer of program information about MMT format data. The required regulations exist, and there is this problem. [Prior Technical Literature] [Patent Literature]

[Patent Literature 1] International Publication WO2018/016294

[Problems to be solved by the invention]

This disclosure was developed in view of, for example, the above-mentioned problems, and its purpose is to provide a method for outputting data in accordance with the MMT format from a receiving device to an external device such as another network connection device. The program information is transmitted together to make it possible to refer to and utilize the program information in the external device to realize the information processing device, information processing method, and program thus constructed. [Means to solve the problem]

The first aspect of this disclosure is an information processing device, which is It includes: a data processing unit that inputs MMT (MPEG Media Transport) format data and generates transmission data to be sent to the network connection device; Department of data processing Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table.

Furthermore, the second aspect of the disclosure is an information processing device, which includes: a data processing unit, Enter the MMT packet string that stores the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section.

Furthermore, the third aspect of the disclosure is an information processing method, which is an information processing method executed in an information processing device, wherein, The data processing section executes the data processing steps, which input the MMT (MPEG Media Transport) format data and generate the transmission data to be sent to the network connection device; The foreword data processing department is in the foreword data processing step, Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table.

Furthermore, the fourth aspect of the present disclosure is an information processing method, which is an information processing method executed in an information processing device, wherein, The data processing part inputs the MMT packet string storing MMT (MPEG Media Transport) format data, and obtains the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section.

Furthermore, the fifth aspect of the present disclosure is a program that is implemented in an information processing device to make it perform information processing, where, Instruct the data processing unit to execute the data processing steps, which input the MMT (MPEG Media Transport) format data and generate the transmission data to be sent to the network connection device; The predecessor program is tied to the predecessor data processing steps, Let it obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate the transmission data containing the storage package of the program information record table.

Furthermore, the sixth aspect of the present disclosure is a program that is used in an information processing device to make it execute information processing, wherein, Instruct the data processing unit to input the MMT packet string storing the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; Let it read the program information from the previous program information storage package and display it on the display.

In addition, the program disclosed in the present disclosure is a program provided by a memory medium or a communication medium provided in a form readable by a computer for an information processing device or a computer system that can execute various program codes, for example. By providing such a program in a computer-readable form, processing corresponding to the program can be realized on the information processing device or computer system.

More other objects, features, or advantages of the present disclosure can be understood based on the more detailed description made by the embodiments of the present disclosure described below or the accompanying drawings. In addition, in this specification, the so-called system is a logical collection structure of plural devices, and the devices of each structure are not limited to those located in the same frame. [Effect of the invention]

According to the configuration of an embodiment of the present disclosure, the program information is obtained from the control information record table specified in the MMT format, and an MMT packet string or a TS packet string containing the program information storage packet is generated and transmitted, so that the destination of the message The possible use of the program information will be realized. Specifically, for example, a receiving device that receives data from a broadcasting station has a data processing section that inputs MMT format data and generates transmission data to be sent to a network connection device. The data processing unit obtains the program information corresponding to the MMT format data to generate a program information record table, and generates transmission data containing the program information storage package. The data processing department obtains the program information from the control information record table such as the event information table (MH-EIT) specified in the MMT format, and sends the transmission data composed of the MMT packet string or the TS packet string to make the transmission purpose It is possible to use program information in the place. With this configuration, the program information is obtained from the control information record table specified in the MMT format, and the MMT packet string or the TS packet string containing the program information storage packet is generated and transmitted, making it possible to use the program information in the transmission destination Composition will be realized. In addition, the effects described in this specification are only examples and are not limited, and may have additional effects.

The details of the disclosed information processing device, information processing method, and program will be described below with reference to the drawings. In addition, the explanation is performed according to the following items. 1. Regarding the reception of MMT format data and output to network connected devices 2. Outline of the generation and transmission of the previous type of program information 3. Outline of the processing performed by the receiving device of the present disclosure 4. About MMT (MPEG Media Transport) format 5. Management information about program information contained in MMT format data 6. Outline of the process of generating the program information record table executed by the receiving device 7. Specific examples of the process of generating program information record tables (MH-SIT, SIT) 8. About receiving MMT format data, generating program information record table (MH-SIT, SIT) and sending it to the structure and processing of information processing device 9. Configuration example of information processing device 10. Summary of the composition of this disclosure

[1. Reception of MMT format data and output to network connected devices] First, referring to FIG. 1, the reception of MMT (MPEG Media Transport) format data and the output to the network connection device will be described.

The broadcasting station 11 shown in FIG. 1 sends the data according to the MMT format. As mentioned above, the MMT format is a data transmission specification proposed for data transmission of high-quality images such as broadcasting of 4K images or 8K images. The MMT format stipulates the control information (SI) that is made up of various management information such as video (audio), audio (audio), subtitle (subtitle), etc., or attribute information, program information, etc. : Signaling Information (control information)), etc., data transmission method (transmission format) transmitted by broadcast wave or network.

Various program information related to the broadcast content such as the program delivered by the broadcasting station, such as: program title, broadcast date and time, performer, category (news, drama, sports, etc.), various program information is recorded in the composition Control information (SI) in multiple tables. The program information is stored in the packet (TLV packet/MMT packet) transmitted through the broadcast wave together with the program content, and is transmitted to the receiving device on the user side.

In FIG. 1, as a device (receiving device) for receiving MMT format data, a broadcast receiver (STB: Set Top Box) 12, a TV 14, and a recording and reproducing device 16 are shown. These receiving devices can understand the MMT format, and can obtain and output the contents of images, sounds, etc. stored according to the MMT format to TV or media. In these receiving devices, the program information stored in the MMT format packet (TLV packet/MMT packet) can be utilized.

The receiving device sometimes outputs the data received by the receiving device to other network-connected devices such as machines at home, such as a PC or a recording and reproducing device (recorder), etc. to receive the broadcast wave Machines other than the receiver of the message processing.

In this case, the receiving device will directly transfer in the MMT format, or convert the MMT format to other formats, such as MPEG-2TS format and other existing formats before transferring.

The reason why it needs to be converted into an existing format such as MPEG-2TS format and then forwarded is because it is the current transmission format of video (Video), audio (Audio), subtitle (Subtitle), etc., or the data recording format to the media, Mostly because of the MPEG-2TS format. This is because it is assumed that the network connection device of the data output destination is a machine that cannot process MMT format data and can only process MPEG-2 TS format.

When the data received by the receiving device is output to the network connection device, the image or sound data constituting the program content is converted into the MMT format or MPEG-2TS format and then transferred, thereby, for the purpose of transfer The content of the program can be reproduced in the place.

However, for the transfer processing of the program information about the title of the program, the broadcast date and time, the performer, etc., although there is a rule that the reception data from the broadcast station is in the MPEG2-TS format, the reception from the broadcast station The requirement that the information is in MMT format does not exist.

In the future, the received data from the broadcasting station is expected to be gradually switched to the MMT format, but under the current regulations, it is impossible to transfer the program information, and it may become impossible to use the program information in the transfer destination. The data received by the receiving device from the broadcasting station is output to an external device such as a network connection device to be viewed on the external device, or the utilization form of programs recorded to the external device is expected to gradually increase in the future. For example, suppose the usage patterns of (1) to (3) shown in FIG. 1.

The processing of FIGS. 1(1) to (3) will be described. Fig. 1(1) shows that the reception data of the broadcast receiver (STB) 12 is output to the recording and reproduction device (recorder) 13 via the network, and the broadcast content is copied to the recording and reproduction device (recorder) 13 Or move (move) and record the example.

FIG. 1(2) is an example when the broadcast content is recorded on the built-in or external media (HDD, etc.) of the TV 14. However, the HDD has a limitation in recording capacity, and in order to record new content, the old recorded content is output to other devices such as the recording and reproducing device 15 through the network for recording.

FIG. 1(3) is an example in which the recording/reproduction device 16 that has received the broadcast wave records the medium (BD), and the recording data is received by the portable terminal 17 via the network to be streamed and reproduced.

For example, when these content transfer processes are performed, the need to use program information in the content transfer destination does occur.

[2. Outline of previous-type program information generation and transmission processing] As mentioned above, the program information corresponding to the program content received by the receiving device from the broadcasting station 11, such as the title of the program, the broadcast date and time, and the program information of the artist, is generated by the receiving device and sent to the external device. The required processing regulations only exist when the received data from the broadcasting station is in MPEG2-TS format.

Referring to FIG. 2, the program information transfer process performed by the receiving device when receiving MPEG2-TS format data from the broadcasting station will be described. The receiving device receives the previous MPEG-2TS format data from the broadcasting station and transfers it to other network-connected devices. The receiving device will also record the management information recorded in the MPEG-2TS format. It is SIT (Selected Information Form) to generate and transfer. The receiving device records and transfers the program information corresponding to the transferred content in the SIT (Selected Information Table).

In addition, the SIT (Selected Information Table) may not be a table generated by the broadcasting station, but by the receiving device itself. The broadcasting station will include, for example, the video and audio information that constitutes the program, as well as information about the program such as the program title, broadcast date and time, performer, and category (news, drama, sports, etc.). Recorded in a table that constitutes control information (SI), such as mpeg2-ts established program map table (PMT) and sent.

As shown in Figure 2, the receiving device generates: a TS packet storing the video and audio data of the program to be sent to the network connection device, and a SIT (selection information table) formed by storing program information about the transferred program The TS stream formed by the TS packets is the local transmission stream and sent to the network connection device.

The receiving device generates a SIT (selection information table) that records program information about the transferred program when the program content is transferred. The receiving device selects the necessary information from the table (for example, PMT) that constitutes the control information (SI) received by the broadcasting station, records the selected information at the location specified by the SIT, and generates the program information about the transferred program. Of SIT.

There are regulations (specifications) regarding the processing procedures for generating SITs that store program information. However, the regulation is that the receiving data from the broadcasting station is in MPEG-2TS format, and the forwarding data is also in MPEG-2TS format. The receiving device is to obtain the necessary data from the control information (SI) received by the broadcasting station according to the regulations, and record it to the SIT process, and it can record the program information record table for the transferred program, that is, the SIT, together with the program The content is sent to the network connection device together.

However, the current regulations are that the receiving data from the broadcasting station is in the MPEG-2TS format and the forwarding data is also in the MPEG-2TS format. Therefore, when the reception data from the broadcasting station is in MMT format, it cannot be used.

The program information record table corresponding to the MPEG-2TS format transmitted by the broadcasting station and the program information record table corresponding to the MMT format are different tables. If the data received by the receiving device from the broadcasting station is in the MMT format, it must be The program information record table is generated and transferred in a completely different procedure from the past.

According to the current regulations of the program information record table (SIT: selection information table), that is, the receiving data from the broadcasting station is in the MPEG-2TS format, and the forwarding data is also in the MPEG-2TS format. The data structure (grammar) of the SIT is explained with reference to FIG. 3.

SIT (selection information table) is the management information (control information, attribute information, etc.) corresponding to the local TS (transport stream) formed by the TS packet string sent from the receiving device to the external device, as the data type ( PID unit) information is recorded.

In SIT, as shown in FIG. 3, the following data recording fields are set. (1) The first description element loop (transmission information description element loop) (=descriptor record field) (2) The second description element loop (service information description element loop) (=descriptor record field)

(1) In the first description meta loop (transmission information description meta loop), management information applied to each transmission processing unit data is recorded. (2) In the second description meta loop (service information description meta loop), management information of each service (program, etc.) unit is recorded.

A specific example of the description element recorded in the SIT (selection information table) is shown in FIG. 4. The descriptive elements shown in FIG. 4 are the descriptive elements recorded in the SIT (selection information table) specified as the recording table of program information in the current MPEG-2 TS format. In FIG. 4, the value of the tag (descriptor_tag) specified by the MPEG-2 TS format corresponding to each descriptor, the descriptor name, and its meaning are shown in correspondence with each other.

As shown in FIG. 4, the following description elements are recorded in the first or second description element loop of the SIT (selection information table). (1) Service description element = channel name and its business name, etc. (2) Short format event description element = description of the program name and a brief description of the program (3) Extended format event description element = description of detailed information about the program (4) Component description element = About the type and description of the image component (5) Content description element = program type, etc. (6) Parental rating descriptor = viewing age restriction information (7) Sound component description element = related parameters of the sound component (8) Hyperlink description element = link to other programs or to programs and related information of programs (9) Data content description element = detailed information about data content (10) Fill the description element = ensure the space of the description element, invalidation information of the description element (11) Local transmission stream descriptor=stream information of local TS, such as maximum bit rate information, etc. (12) Event group description element = the grouping of the same content event when the event is shared, and the connection of the event relay (13) Broadcaster name description element = broadcaster name (broadcasting station name) (14) Component group description element = component group in MVTV (15) Series description element = series information across multiple events (16) Network identification descriptor = network information of local TS (transport stream) generation source (17) Local transmission stream time descriptor = local TS (transport stream) generation time information (18) Broadcast ID description element = various IDs at the time of broadcast necessary for the reproduction of the data broadcast

[3. Outline of processing performed by the receiving device of the present disclosure] Next, referring to FIG. 5, the outline of the processing executed by the receiving device of the present disclosure will be described. FIG. 5 illustrates a broadcasting station 11, a receiving device 20, and a network connection device 30 such as a broadcasting server. The broadcasting station 11, such as a broadcasting server, will send the data according to the MMT format.

The receiving device 20 receives MMT format data from the broadcasting station 11. In FIG. 5, as an example of the receiving device 20, a broadcast receiver (STB: Set Top Box) 21, a TV 22, a recording and reproducing device 23, a PC 24, and a portable terminal 25 are shown. These are examples, and other types of receiving devices 20 are available. These devices are all devices that can understand MMT format data and can process data in MMT format data.

These receiving devices 20 send broadcast content to the network connecting device 30 through a communication network such as a home network. At the time of transmission processing of the broadcast content, the receiving device 20 executes any one of the following two processes. (Process 1) Send the MMT format data composed of the MMT packet string to the network connection device 30. (Process 2) Convert the MMT format to MPEG2-TS format, and send the MPEG-2 TS format data composed of the TS packet string to the network connection device 30.

The receiving device 20 performs either of these two processes, or selectively performs both. For example, if the machine that broadcasts the destination of the content is a device that can handle the MMT format (Process 1), if the machine that broadcasts the content is the device that cannot handle the MMT format The following is executed (Process 2).

In addition, no matter which of (Process 1) and (Process 2) is executed, the receiving device 20 generates a table recording program information about the content (program) to be sent to the network connection device 30 , Stored in the MMT packet or TS packet and sent along with the program content. The receiving device 20 selects and obtains program information from control information (SI) contained in the MMT format data received by the broadcasting station 11 to generate a table in which the program information is recorded.

In addition, (Process 1), that is, the program information record table stored in the MMT format data formed by the MMT packet string is called MH-SIT (Select Information Table). On the other hand, (Process 2), that is, the program information record table stored in the MPEG2-TS format data formed by the TS packet string is called SIT (Select Information Table) as before. In addition, "MH" means that this is the data or table corresponding to the MMT format.

In the MMT format, various tables have been defined, and each table is classified into a plurality of message types in accordance with the stored data. For example: PA message, M2 section message, CA message, M2 short section message, data transmission message. The program information record table newly defined this time is MH-SIT (selection information table), which is a table belonging to the M2 section information.

As shown in FIG. 5, the MMT packet storing the MH-SIT (selection information table) is set with: a packet identifier that can identify that this is a MH-SIT storage packet recording program information, for example, [PID=0x9000 ]. On the other hand, the TS packet storing the SIT (selection information table) is set with a packet identifier that can recognize that this is a SIT storage packet recording program information, such as [PID=0x001F].

The data processing unit of the network connection device 30 that has received the MMT packet string or the TS packet string from the receiving device 20 obtains the MH recorded with the program information from each packet string based on the packet identifier in any case -SIT storage package, or SIT storage package, and program information can be used for reference and use. For example, the data processing unit of the network connection device 30 may perform such processing that the program information is read from the program information storage packet and displayed on the display unit.

In addition, although it will be described in detail in the following paragraph, the MH-SIT storage package with recorded program information, or the program information stored in the SIT storage package, is composed of a plurality of different description elements, and at least a part of the description elements , Is the same descriptor as specified in the previous MPEG2-TS format selection information table (SIT), so the network connection device 30 can use the program information by almost the same processing as before .

The generation processing of the MH-SIT (selection information table) corresponding to the MMT format executed in the receiving device 20 and the generation processing of the SIT (selection information table) corresponding to the MPEG2-TS format are described in detail in the following paragraphs.

[4. About MMT (MPEG Media Transport) format] As explained with reference to FIG. 5, the data transmission from the broadcasting station 11 is executed in accordance with the MMT (MPEG Media Transport) format. 6, the MMT (MPEG Media Transport) format will be described below.

Fig. 6 is an illustration of a stacked model in MMT format. In the MMT stacking model shown in FIG. 6, the lowest layer is the physical layer (PHY). The physical layer is divided into: a broadcasting layer that performs the processing of the broadcasting system, and a broadband layer that performs the processing of the network system. The MMT system is designed so that it can be handled by two communication networks, the broadcast system and the network system.

As the upper layer of the physical layer (PHY), there is a TLV (Type Length Value) layer. TLV is a format specification layer that specifies the multiplexing method of IP packets. Multiple IP packets are multiplexed into TLV packets and sent. TLV-SI is a transmission layer of control information (SI) in accordance with control messages in TLV format.

Control information (SI: Signaling Information) is composed of: setting information, introduction information or notification information, control information, management information, etc. necessary for receiving and reproducing content (programs) on the receiving device side . The control information (SI) stored in the TLV packet generated by processing in the TLV layer is TLV-SI, which is mainly composed of control information about receiving processing. The control information (SI) stored in the MMT packet (sometimes also referred to as the MMTP packet) generated according to the MMT protocol (MMTP) is the MMT-SI shown at the top, mainly due to the regeneration Control information constituted by control.

On the TLV layer, the UDP/IP layer is set. The UDP/IP layer can be divided into an IP layer and a UDP layer in detail, but it is a layer that specifies the transmission of storing UDP packets in the payload of an IP packet. On the UDP/IP layer, an MMT layer and a File delivery method layer are set. The MMT packet is stored in an IP packet and sent, and the data transmission method that does not use the MMT packet, that is, the method of using the File delivery method as the IP packet to send data, is a setting that can be used in combination.

On the MMT layer, the following layers are set. The encoded video data of HEVC (High Efficiency Video Coding) according to the video coding standard is also the video data; AAC (Advanced Audio Coding) coded audio data in accordance with the audio coding specifications is also called audio (Audio) data; TTML (Timed Text Markup Language) coded subtitle data in accordance with the subtitle coding standard, that is, subtitle (Subtitle) data; Control information sent using MMT packets (MMT-SI); And, various applications written in accordance with HTML5 (Hyper Text Markup Language 5); These data are stored in the MMT packet and sent.

The control information (MMT-SI) is the control information (control information) sent by MMT packet, which is: the setting information or program necessary for reproducing the content (program) on the side of the information processing device 30 Information, such as introduction information or notification information, control information, etc., consist of various management information.

In addition, the time information (NTP: Network Time Protocol) is absolute time information, which is directly stored in the UDP packet and sent. Data services (Data download) and content downloads (Content download, etc.) that perform other data transfers can be delivered using a different file delivery method (File delivery method) than MMT.

As shown in Figure 6, images, sounds, subtitles, and control information (MMT-SI) or applications made up of various management information such as various notification information or control information are borrowed It is sent by MMT packet.

7, the control information (SI) contained in the MMT format data will be described. As shown in Figure 7, the control information contains the following information. TLV Control Information (TLV-SI) MMT Control Information (MMT-SI)

As previously described with reference to FIG. 6, the control information is managed by: setting information necessary for receiving content (programs, etc.) on the information processing device 30 side, or introducing information or notification information, control information, etc. of program information, etc. Information. The control information stored in the TLV packet generated by processing in the TLV layer is TLV control information (TLV-SI). The packet generated according to the MMT protocol, that is, the control information stored in the MMT packet is the most MMT control information (MMT-SI) shown in the upper layer.

[5. Management information about program information contained in MMT format data] Next, the management information such as the program information included in the MMT format data will be explained. The two types of management information (TLV-SI, MMT-SI) shown in FIG. 7(1), specifically, as shown in FIG. 7(2), are composed of multiple tables (TLV-NIT, MH-BIT , ..., MPT, ...). In these plural tables, as shown in FIG. 7(3), various program information, management information, etc. are recorded in units of descriptors.

Descriptors include, for example, the following descriptors. A description element (service description element) indicating the name of the broadcasting station that represents the main body of the content (program), Descriptor (Content Descriptor) that represents the content (artist, etc.) of the content (program) Descriptor element (copy control descriptor element) indicating copy permission information of content (program) Descriptive element indicating allowable age information for viewing content (program) (Parental Control Information Descriptive Element) In addition, the above system is an example of a descriptive element. In addition to the MMT format, a large number of descriptive elements are specified. Various management information systems corresponding to each descriptive element are recorded in the table.

FIG. 8 is a diagram showing an example of the management information record table transmitted by the broadcasting station 11. FIG. 8(A) shows an example of the management information record table in accordance with the MMT format transmitted by the broadcasting station 11 when the data transmitted by the broadcasting station 11 is in the MMT format. The receiving device 20 receives these tables and generates a table (MH-SIT, SIT) in which program information is recorded based on these tables.

In addition, although not used in the processing of the present disclosure, in the previous processing, that is, when the broadcasting station 11 transmits MPEG2-TS format data as shown in FIG. 2, the broadcasting station 11 transmits the data in accordance with MPEG2-TS The management information recording table, which is an example of a program mapping table (PMT), is shown as a reference example in FIG. 8(B).

(A) The management information record table in MMT format transmitted by the broadcasting station has the following table. (a) TLV-NIT (Network Information Table) (b) MH-BIT (Broadcaster Information Table) (c) MH-SDT (Service Description Table) (d) MH-EIT (Event Information Form) (e) MH-TOT (Time Offset Table) (f) MPT (MMT package table)

(a) TLV-NIT (Network Information Table) is a table included in TLV Control Information (TLV-SI), which is a table recording the combination of TLV stream and tuning information. (b) MH-BIT (broadcaster information table) is a table included in MMT control information (MMT-SI), which is a table recording information of broadcasters on the network.

(c) MH-SDT (Service Description Table) is a table included in MMT control information (MMT-SI), and is a table recording channel related information such as channel name, broadcaster name, etc. (d) MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name of the content (program, etc.), the date and time of broadcasting, the description of the content, etc. A table of related information.

(e) MH-TOT (Time Offset Table) is a table included in MMT control information (MMT-SI), and is a table that records date and time related information such as current date and time information. (f) MPT (MMT package table) is a table included in MMT control information (MMT-SI), which is an asset (image, sound, subtitles, etc.) that records the components of the package (content, program, etc.) The list, or location, etc. of the package constitute a table of information.

On the other hand, (B) the management information record table transmitted according to the MPEG2-TS format transmitted by the broadcasting station has the following table. (a) PMT (Program Map)

(a) PMT (Program Map Table) is a table included in PSI (Program Specific Information) specified in the MPEG-2TS format, and is data management information that records data types (PID units) ( Control information, attribute information, etc.) table.

As in the example described earlier with reference to FIG. 2, in the case where the broadcasting station is transmitting MPEG2-TS format data, the receiving device generates a table (SIT) recording program information based on the PMT and sends it to the network connection Device.

In the processing of the present disclosure, the receiving device 20 performs a table according to the MMT format data shown in FIG. 8(A) from the broadcasting station 11, and generates a table recording program information based on these tables ( MH-SIT, SIT (selection information form)). The receiving device 20 performs a program information recording table (MH-SIT, SIT) containing almost the same data as the previous program information recording table (SIT) based on the MPEG2-TS format, as shown in FIG. 8(A) The record information of the table in accordance with the MMT format data is specifically a process of selecting and generating data such as descriptors recorded in each table.

Therefore, the same data (descriptor) as the previous program information recording table (SIT (selection information table)) based on the previous MPEG2-TS format described with reference to FIGS. 3 and 4 must be obtained from FIG. 8(A) Obtain from each table shown.

9 is a description of the descriptors recorded in the SIT (selection information table) in the MPEG2-TS format, the descriptors available from the control information in the MMT format, and the corresponding data with the processing performed by the receiving device of the present disclosure Illustrating.

Figure 9 illustrates: (A) Descriptive elements recorded in SIT (selection information table) in MPEG2-TS format (B) The description element recorded in the control information (SI) of the MMT format corresponding to the description element shown in (A) (C) The receiving device 20 of the present disclosure obtains a table of descriptors from the MMT format data received by the broadcasting station 11, or the processing performed by the receiving device 20 The corresponding information for these.

Explain the information shown in item (1). The (A) service description element recorded in the SIT (selection information table) of the MPEG2-TS format is also recorded as the MH-service in the control information (SI) of the MMT format as shown in (B) Description element. The description element, as shown in (C), is recorded in the service description table (MH-SDT) corresponding to the MMT format.

Therefore, the receiving device that receives the MMT format data from the broadcasting station can obtain the service description element from the service description table (MH-SDT) corresponding to the MMT and record it to the program information record table (MH-SIT, SIT) in.

The short format event description element shown in item (2) can be obtained from the event information table (MH-EIT) corresponding to MMT, and recorded into the program information record table (MH-SIT, SIT).

However, the description elements corresponding to the description elements other than items (8) to (11) are not recorded in the MMT correspondence table, and the receiving device cannot obtain the corresponding description elements from the MMT format data. In such a case, the processing corresponding to each description element shown in FIG. 9(C) is performed. In addition, the details of the specific processing corresponding to each descriptor will be described later.

As shown in FIG. 9, a table (MH-EIT, etc.) composed of control information (SI) corresponding to MMT sent by the broadcasting station 11 is recorded in the table described above with reference to FIGS. 3 and 4. Data with the same descriptors recorded in the SIT (selection information table) specified in the MPEG-2TS format. Therefore, the receiving device 20 can be generated by MPEG-B by selecting and acquiring the descriptors recorded in the tables constituting the control information (SI) sent by the broadcasting station 11 according to the MMT format. The SIT (selection information table) specified in the 2TS format is almost the same data.

An example of the description meta record of the table corresponding to the MMT format will be described with reference to FIGS. 10 and 11. FIG. 10 is an illustration of the data structure (syntax) of the MMT package table (MPT) specified in the MMT format. The MMT package table (MPT) is a table that records a list of assets (images, sounds, subtitles, etc.) of components (packages, etc.) that encapsulate content (programs, etc.), or package composition information such as location. As shown in FIG. 10, the description element (asset description element) of the asset unit is recorded in the MMT package table (MPT). Here is recorded, for example, the item (8) parent rating description element shown in FIG. 9.

Fig. 11 is an illustration of the data structure (grammar) of the event information table (MH-EIT) specified in the MMT format. The event information table (MH-EIT) is a table that records content-related information such as the name of the content (program, etc.), the broadcast date and time, and the description of the content. As shown in FIG. 11, an event information table (MH-EIT) is also provided with a description element record field, where various description elements are recorded. Here, a plurality of description elements such as the short format event description element of the item (2) shown in FIG. 9 are recorded.

The receiving device 20 can obtain various description elements required to be recorded in the program information record table (MH-SIT, SIT) from the tables corresponding to these MMTs.

[6. Outline of the process of generating the program information record table executed by the receiving device] Next, the outline of the generation process of the program information record table (MH-SIT, SIT (selection information table)) executed by the receiving device that receives MMT format data from the broadcasting station will be described.

As shown in FIG. 12, the receiving device 20 receives MMT format data from the broadcasting station 11. The receiving device 20 is a device that can understand MMT format data and can process data in the MMT format data. The receiving device 20 transmits broadcast content to the network connection device 30 through a communication network such as a home network.

At the time of transmission processing of the broadcast content, the receiving device 20 executes any one of the following two processes. (Process 1) Generate the MMT format data composed of the MMT packet string, and generate a program information record table (MH-SIT), store it in the MMT packet, and then send it to the network connection device 30. (Process 2) Convert the MMT format to MPEG2-TS format, generate MPEG-2 TS format data composed of TS packet strings, and generate a program information record table (SIT) to store in the MPEG2-TS packet and then send it to the network Connecting device 30.

In addition, as the processing aspect of the (processing 1) case, as shown in FIG. 12, it has: (1) Newly added MMT package that stores the program information record table (MH-SIT). (2) Overwrite the data stored in the MMT package of the existing MH-EIT with the data of the program information record table (MH-SIT). In these two aspects, the receiving device 20 executes either of these two processes.

In addition, the setting of overwriting the data of the existing MH-EIT MMT packet with the data of the program information record table (MH-SIT) is feasible because the majority of the recorded information of the existing MH-EIT The information is recorded in the program information record table (MH-SIT) newly created by the receiving device 20. However, in the case where the data of the MH-EIT storage packet is overwritten with the data of the program information record table (MH-SIT), the packet size must sometimes be adjusted. This is to make the length of the existing MH-EIT storage packet equal to the newly created MH-SIT storage packet. In this case, for example, in the newly created MH-SIT storage packet, the blank data (fill bytes) such as [000...00] is recorded as the MH-fill descriptor, and the packet size is adjusted.

Next, referring to FIG. 13, the data structure (grammar) of the two program information recording tables (MH-SIT, SIT) generated by the receiving device 20 will be described. Fig. 13 (1) is the data structure (syntax) of the program information record table (MH-SIT) inserted in the MMT format data row shown in Fig. 12 (process 1). FIG. 13(2) is the data structure (Syntax) of the program information record table (SIT) inserted in the MPEG-2 TS packet string shown in FIG. 12 (Process 2).

The MMT corresponding program information storage table MH-SIT shown in FIG. 13(1) is a new table that has not been defined in the MMT format so far. On the other hand, the MPEG2-TS corresponding program information storage table SIT shown in FIG. 13(2) is equivalent to the table already specified in the MPEG-2TS format, and has the same description as described above with reference to FIGS. 3 and 4 The table composition is the same.

In addition, the MMT corresponding program information storage table MH-SIT shown in FIG. 13(1) basically has the same data structure as the existing MPEG2-TS corresponding program information storage table SIT shown in FIG. 13(2). Either way, as explained earlier with reference to FIG. 3, there are two fields of description meta records as described above. (1) The first description element loop (transmission information description element loop) (=descriptor record field) (2) The second description element loop (service information description element loop) (=descriptor record field)

(1) The first description element loop (transmission information description element loop) is a description element corresponding to management information (including program information) corresponding to each transmission processing unit data. (2) The second description element circle (service information description element circle) is a description element corresponding to management information (including program information) of each service (program, etc.) unit.

In addition, the table ID system of the MMT corresponding program information storage table MH-SIT shown in FIG. 13(1) is [0xE0], and the table ID system of the MPEG2-TS corresponding program information storage table SIT shown in FIG. 13(2) is [0x7F].

The table ID=[0x7F] of the MPEG2-TS corresponding program information storage table SIT shown in FIG. 13(2) is a prescribed ID in the MPEG2-TS format. In contrast, the MMT corresponding to the program information storage table MH-SIT shown in FIG. 13(1) has table ID=[0xE0], which is the current ID in the MMT format. Other IDs can be used as long as there is no conflict.

In addition, the service ID recorded in the program information storage table MH-SIT corresponding to the MMT shown in FIG. 13(1) is the MMT package ID to be recorded in the MMT package table (MPT) specified in the MMT format To be recorded. This is because the same service ID in the MMT format is to record a common service ID.

Similarly, the service ID recorded in the MPEG2-TS corresponding program information storage table SIT shown in FIG. 13(2) will be recorded in the program mapping table (PMT) specified in the MPEG2-TS format The service ID shall be recorded. This is also because the same service ID in the MPEG2-TS format is to record a common service ID.

In this way, the receiving device 20 generates any one of the two program information recording tables (MH-SIT, SIT) shown in FIG. 13 and sends it to the network connection device 30. The data processing unit of the network connection device 30 that has received the MMT packet string or the TS packet string from the receiving device 20 obtains the MH recorded with the program information from each packet string based on the packet identifier in any case -SIT storage package, or SIT storage package, and program information can be used for reference and use. For example, the data processing unit of the network connection device 30 may perform such processing that the program information is read from the program information storage packet and displayed on the display unit.

In addition, the program information is recorded in the descriptive circle in the MH-SIT and SIT shown in FIG. 13 as a descriptive element. The descriptors of at least a part of these descriptors are the same descriptors as specified in the previous MPEG2-TS format selection information table (SIT). The network connection device 30 is almost the same as the previous descriptors Program information.

[7. Specific example of the process of generating program information record table (MH-SIT, SIT)] Next, referring to FIG. 14 and below, the program information record table (MH-SIT, SIT (selection information table)) executed when the receiving device 20 receives MMT format data from the broadcasting station 11 and sends it to the network connection device 30 A specific example of the generation process.

In addition, as described above with reference to FIG. 12, the receiving device 20 performs any of the following two processes. (Process 1) Generate the MMT format data composed of the MMT packet string, and generate a program information record table (MH-SIT), store it in the MMT packet, and then send it to the network connection device 30. (Process 2) Convert the MMT format to MPEG2-TS format, generate MPEG-2 TS format data composed of TS packet strings, and generate a program information record table (SIT) to store in the MPEG2-TS packet and then send it to the network Connecting device 30.

Below FIG. 14, the processing of the recording data (descriptor) unit of the program information recording table (SIT (Select Information Table)) corresponding to the previous type of MPEG2-TS explained with reference to FIG. 4 will be described in order.

(1) Acquisition and record processing of service description element corresponding information First, referring to FIG. 14, the process of obtaining the service descriptor corresponding information from the MMT format data received from the broadcasting station, the program information record table (MH-SIT) corresponding to MMT, and the program information corresponding to MPEG-2TS Record processing of the service description element of the record table (SIT). In addition, as explained earlier with reference to FIG. 4, the service description element is recorded with information such as the channel name and the name of its provider. As shown in FIG. 9, the description element corresponding to the service description element is recorded in the service description table (MH-SDT) specified in the MMT format.

FIG. 14 shows an example of the processing steps S11 to S13 executed by the receiving device 20 and the service description elements in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S11 and S12. As a result of this processing, a service description element with the data structure shown in FIG. 14(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S11 and S13. As a result of this processing, a service description element with the data structure shown in FIG. 14(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S11) First, in step S11, the receiving device 20 obtains the service description table (MH-SDT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the service description table (MH-SDT) To obtain the information corresponding to the service description element recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, the MH-SDT (Service Description Table) is a table included in MMT control information (MMT-SI), which is channel related information in which channel names, broadcaster names, etc. are recorded Table. The receiving device 20 obtains the information corresponding to the service description element recorded in the program information record table (MH-SIT, SIT (selection information table)) from the service description table (MH-SDT). Specifically, information such as the service type indicating the type of the program, the name of the business as the information of the program provider, the name of the channel indicating the channel of the program, and the like are obtained.

In addition, the MH-SDT (Service Description Table) transmitted in the MMT format includes: all broadcast stations are common to all station information, and the information of each station unit is also a two-type table of each station information. The table used here is the MH-SDT (Service Description Table) equivalent to the information of each unit, that is, the information of each station.

(Step S12) The process of step S12 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the service description table (MH-SDT) corresponding to the MMT format in step S11, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Service description element. In addition, the record field of the service description element is set to the second description element loop (service information description element loop).

As a result, it is recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has a service description element composed of the data shown in FIG. 14(a). In the service description element shown in FIG. 14(a), a description element tag=0x48 is recorded, and a service type indicating the type of program, a business name as program provider information, and a program providing channel are also recorded. Channel name and other information. Description meta tag=0x48, which is a tag used as a service description meta tag in the SIT corresponding to the previous MPEG2-TS. The service type, business name, and channel name are information obtained from the service description table (MH-SDT) corresponding to the MMT format in step S11.

In addition, in the SIT corresponding to the previous MPEG2-TS format, as the service type, there are nine types of service types of 0x01 to 0xAA shown in FIG. 15(a). However, in the service description table (MH-SDT) corresponding to the MMT format, there are only two types of digital television services corresponding to 0x01 and temporary video services corresponding to 0xA1 shown in FIG. 15(a).

Therefore, in step S11, the service type information that can be obtained from the service description table (MH-SDT) corresponding to the MMT format is the digital TV service corresponding to 0x01 and the corresponding to 0xA1 shown in FIG. 15(a). For any of the temporary video services, the service type of either of these two will be recorded in the service description element of the program information record table (SIT) corresponding to the MPEG2-TS format shown in Figure 14(a) .

(Step S13) Step S13 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the service description table (MH-SDT) corresponding to the MMT format in step S11, and records it in the program information recording table (MH-SIT) corresponding to the MMT Service description element. In addition, the record field of the service description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to MMT, with the service description element composed of the data shown in FIG. 14(b). In the service description element shown in FIG. 14(b), the description element tag=0x8019 is recorded, and the service type indicating the type of the program, the name of the operator as the program provider information, and the program providing channel are also recorded. Channel name and other information. Description meta tag = 0x8019, which is a tag used as a service description meta tag in the MMT format. The service type, business name, and channel name are information obtained from the service description table (MH-SDT) corresponding to the MMT format in step S11.

In addition, as mentioned above, in step S11, the service type information that can be obtained from the service description table (MH-SDT) corresponding to the MMT format is the digital TV service corresponding to 0x01 shown in FIG. 15(b), and the corresponding For any of the temporary video services at 0xA1, the service type of either of the two will be recorded in the program information record table (MH-SIT) corresponding to the MMT format shown in Figure 14(b) Describe the element.

(2) Acquiring and recording the corresponding information of the short format event description element Next, referring to FIG. 16, the acquisition processing of the short format event descriptor corresponding information from the MMT format data received from the broadcasting station corresponds to the program information recording table (MH-SIT) and MPEG-2TS corresponding to the MMT The recording process of the short form event description element of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, information such as the program name and a brief description of the program is recorded in the short format event description element. Furthermore, as shown in FIG. 9, the description element corresponding to the short format event description element is recorded in the event information table (MH-EIT) specified in the MMT format.

FIG. 16 shows an example of the processing steps S21 to S23 executed by the receiving device 20 and the short-form event descriptors in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates the program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S21 and S22. As a result of this processing, a short-format event descriptor with the data structure shown in FIG. 16(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S21 and S23. As a result of this processing, a short format event description element with the data structure shown in FIG. 16(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S21) First, in step S21, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the short format event description element recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. The receiving device 20 obtains the information corresponding to the short-format event descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, it is to obtain the language information (ISO639 langage code) of the program, program name, program detailed information, etc.

(Step S22) The process of step S22 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S21, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Short format event description element. In addition, the recording field of the short-form event description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, with a short format event description element composed of the data shown in FIG. 16(a). In the short format event description element shown in FIG. 16(a), description element tag=0x4D is recorded, and information such as language information (ISO639 langage code), program name, program detailed information, etc. of the program is also recorded. Description meta tag=0x4D, which is a tag used as a short format event description meta tag in the previous SIT corresponding to MPEG2-TS. The language information, program name, and program detailed information of the program are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S21.

(Step S23) Step S23 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S21, and records it in the program information record table (MH-SIT) corresponding to the MMT Short format event description element. In addition, the recording field of the short-form event description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to MMT, with a short format event description element composed of the data shown in FIG. 16(b). In the short format event description element shown in FIG. 16(b), description element tag=0xF001 is recorded, and information such as language information (ISO639 langage code) of the program, program name, program detailed information, etc. is also recorded. Description meta tag = 0xF001, which is a tag used as a short format event description meta tag in the MMT format. The language information, program name, and program detailed information of the program are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S21.

(3) Acquiring and recording the corresponding information of the extended format event description element Next, referring to FIG. 17 and FIG. 18, description will be given of the acquisition processing of the extended format event descriptor corresponding information from the MMT format data received from the broadcasting station, and the program information record table (MH-SIT), MPEG- 2TS corresponding to the program information record table (SIT) extended format event description element recording process. In addition, as explained before with reference to FIG. 4, detailed information about the program and the like are recorded in the extended format event descriptor. Furthermore, as shown in FIG. 9, the description element corresponding to the event descriptor of the extended format is recorded in the event information table (MH-EIT) specified in the MMT format.

It is illustrated in FIG. 17, the processing steps S31 to S33 performed by the receiving device 20, and illustrated in FIG. 18, the extended format in the program information record table (MH-SIT, SIT) generated by these processing results Record example of event description element.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S31 and S32. As a result of this process, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, which has an extended format event description element composed of the data shown in FIG. 18(a).

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S31 and S33. As a result of this process, it will be recorded in the program information record table (MH-SIT) corresponding to MMT, with an extended format event description element composed of the data shown in FIG. 18(b).

Explain the processing of each step. (Step S31) First, in step S31, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the event descriptor of the extended format recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. The receiving device 20 obtains the information corresponding to the event descriptor of the extended format recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, it is to obtain information such as the language information of the program (ISO639 langage code), the name of the performer or director, and the content of the project.

(Step S32) The process of step S32 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S31, and records it in the program information record table (SIT) corresponding to MPEG2-TS. Extended format event description element. In addition, the recording field of the extended format event description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, with an extended format event description element composed of the data shown in FIG. 18(a). In the extended format event description element shown in FIG. 18(a), the description element tag=0x4E is recorded, and the language information (ISO639 langage code) of the program, the project name and project content of the performer or director, etc. are also recorded. Wait for information. The description meta tag=0x4E is a tag used as an extended format event description meta tag in the SIT corresponding to the previous MPEG2-TS. The language information of the program, the project name and project content information of the performer or director, etc. are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S31.

(Step S33) Step S33 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S31, and records it in the program information record table (MH-SIT) corresponding to the MMT Extended format event description element. In addition, the recording field of the extended format event description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with an extended format event description element composed of the data shown in FIG. 18(b). In the extended format event description element shown in FIG. 18(b), description element tag=0xF002 is recorded, and information such as the language information of the program, the project name of the performer or director, and the item content information is also recorded. Description meta tag=0xF002, which is a tag used as an extended format event description meta tag in the MMT format. The language information of the program, the project name and project content information of the performer or director, etc. are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S31.

(4) Acquiring and recording the corresponding information of the component description element Next, referring to FIG. 19, the description will be given to the process of acquiring the component descriptor corresponding information of the MMT format data received from the broadcasting station, the program information record table (MH-SIT) corresponding to MMT, and the program corresponding to MPEG-2TS Information record table (SIT) component description element record processing. In addition, as explained before with reference to FIG. 4, information about the type and description of the image component is recorded in the component description element. Furthermore, as shown in FIG. 9, the description element corresponding to the component description element is recorded in the MMT package table (MPT) or the event information table (MH-EIT) specified in the MMT format.

FIG. 19 illustrates the processing steps S41 to S43 performed by the receiving device 20, and FIG. 20 illustrates the component description elements in the program information record table (MH-SIT, SIT) generated by these processing results. Record example.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S41 and S42. As a result of this processing, a component description element having the data structure shown in FIG. 20(a) is recorded in the program information recording table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S41 and S43 are executed. As a result of this processing, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and has a component description element composed of the data shown in FIG. 20(b).

Explain the processing of each step. (Step S41) First, in step S41, the receiving device 20 obtains the MMT package table (MPT) or event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11 Obtain the MMT package table (MPT) or event information table (MH-EIT), and obtain the information corresponding to the component description elements recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously described with reference to FIG. 8, the MMT package table (MPT) is a table included in the MMT control information (MMT-SI), and is an asset (image, image, The list of sounds, subtitles, etc., or the packaging of locations, etc. constitute a table of information. MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is related to content related information such as the name of the content (program, etc.), broadcast date and time, description of the content, etc. table.

The receiving device 20 is obtained from the MMT package table (MPT) or the event information table (MH-EIT) to obtain the component descriptors recorded in the program information record table (MH-SIT, SIT (selection information table)) Information.

However, in the MMT format, the component descriptor that records the same information as the component descriptor specified by MPEG2-TS does not exist. In the MMT format, the image component descriptor that records the information about the image component is recorded in the MMT package table (MPT) and event information table (MH-EIT), and the information is obtained and used.

21 is a diagram showing the data composition of the image component description elements recorded in the MMT package table (MPT) and the event information table (MH-EIT). As shown in FIG. 21, the image component description element recorded in MPT and MH-EIT in the MMT format contains the following information. (1a) Video signal resolution (video_resolution) (1b) Video signal aspect ratio (video_aspect_ratio) (1c) Video frame rate (video_frame_rate) (1d) Video signal transmission characteristics (video_rtransfer_characteristics) The specific setting values of these pieces of information are as shown in FIG. 22. In addition, FIG. 22 illustrates only a part of the values specified in the MMT.

In step S41, the receiving device 20 obtains the image component descriptor with the data structure shown in FIG. 21 from the MMT package table (MPT) or the event information table (MH-EIT).

(Step S42) The process of step S42 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the image component descriptor obtained from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format in step S41, that is, it has The record information of the image component description element formed by the data is converted into the record information of the component description element corresponding to MPEG2-TS. Thereafter, the conversion information is recorded as a component description element in a program information recording table (SIT) corresponding to MPEG2-TS. In addition, the record field of the component description element is set to the second description element loop (service information description element loop).

Figure 20(a) illustrates the data structure of the component description elements of the program information record table (SIT) corresponding to MPEG2-TS. It must be recorded in the component description element corresponding to MPEG2-TS: Streaming content (stream_content) information; Component type (component_type) information; This information.

This information, specifically, only records the values shown in Figure 20(a2), that is: Streaming content = 0x9, component type = 0x83; or Streaming content = 0x9, component type = 0x93; Any combination of these is sufficient.

Streaming content = 0x9, component type = 0x83, which corresponds to the case where the resolution of the received data from the broadcasting station is 4320 (8K). In addition, streaming content = 0x9, component type = 0x93, which corresponds to the case where the resolution of the received data from the broadcasting station is 2160 (4K). The resolution of the received data from the broadcasting station can be obtained from the video signal resolution (video_resolution) of the image component descriptor corresponding to the MMT format described with reference to FIGS. 20 and 21. The receiving device 20, according to the obtained value, will Streaming content = 0x9, component type = 0x83; or Streaming content = 0x9, component type = 0x93; Any combination of these is recorded in the component description element corresponding to MPEG2-TS.

As a result, it is recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has a component description element composed of the data shown in FIG. 20(a). In the component description element shown in FIG. 20(a), the description element label=0x50 is recorded, and it is also recorded as: Streaming content = 0x9, component type = 0x83; or Streaming content = 0x9, component type = 0x93; Information about any combination of these. Description meta tag = 0x50, which is a tag used as a component description meta tag in the SIT corresponding to the previous MPEG2-TS.

(Step S43) Step S43 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

The receiving device 20 uses the information obtained from the MMT package table (MPT) or the event information table (MH-EIT) corresponding to the MMT format in step S41, specifically, the image component description element shown in FIG. 21 , Directly recorded as the component description element of the program information record table (MH-SIT) corresponding to MMT. In addition, the record field of the component description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and it has a component description element composed of the data shown in FIG. 20(b). The component description element shown in FIG. 20(b) is the same data structure as the image component description element shown in FIG. The description meta tag = 0x8010 is recorded, and the descriptions with reference to FIG. 21 and FIG. 22 on the left (1a) Video signal resolution (video_resolution) (1b) Video signal aspect ratio (video_aspect_ratio) (1c) Video frame rate (video_frame_rate) (1d) Video signal transmission characteristics (video_rtransfer_characteristics) These pieces of information directly record the setting values of the image component descriptor received from the broadcasting station 11. Description meta tag = 0x8010, which is a tag used as an image component description meta tag in the MMT format.

(5) Acquiring and recording information corresponding to content description elements Next, referring to FIG. 23, the process of obtaining content descriptor corresponding information from MMT format data received from the broadcasting station, and the program information record table (MH-SIT) corresponding to MMT and the program information corresponding to MPEG-2TS The record processing of the content description element of the record table (SIT). In addition, as previously explained with reference to FIG. 4, information such as program type and the like is recorded in the content descriptor. As shown in FIG. 9, the description element corresponding to the content description element is recorded in the event information table (MH-EIT) specified in the MMT format.

23 is a diagram showing the processing steps S51 to S53 executed by the receiving device 20, and a record example of content descriptors in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S51 and S52. As a result of this processing, a content description element having the data structure shown in FIG. 23(a) is recorded in the program information recording table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S51 and S53 are executed. As a result of this processing, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with a content description element composed of the data shown in FIG. 23(b).

Explain the processing of each step. (Step S51) First, in step S51, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the content description element recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. The receiving device 20 obtains the information corresponding to the content descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, it is to obtain information such as program type information.

(Step S52) The process of step S52 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S51, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Content description element. In addition, the recording field of the content description element is set to the second description element loop (service information description element loop).

As a result, it is recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has a content description element composed of the data shown in FIG. 23(a). In the content descriptor shown in FIG. 23(a), the record descriptor tag is 0x54. Description meta tag=0x54, which is a tag used as a content description meta tag in the SIT corresponding to the previous MPEG2-TS.

Furthermore, (a) Content half worship level 1 (content_nibble_level_1) (b) Content half worship level 1 (content_nibble_level_1) (c) User half worship (user_nibble) (d) User half worship (user_nibble) In these data fields (a) to (d), the value (code information) based on the type information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S51 is recorded.

In addition, the values corresponding to the program types recorded in the data fields (a) to (d) are specified in MPEG2-TS, refer to the specified information, and the event information table (MH) corresponding to the MMT format in step S51 -EIT) The value (code information) based on the obtained type information is recorded.

(Step S53) Step S53 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S51, and records it in the program information record table (MH-SIT) corresponding to the MMT Content description element. In addition, the recording field of the content description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and has a content description element composed of the data shown in FIG. 23(b). In the content description element shown in FIG. 23(b), the description element tag=0x8012 is recorded, and the type information of the program is also recorded in: (a) Content half worship level 1 (content_nibble_level_1) (b) Content half worship level 1 (content_nibble_level_1) (c) User half worship (user_nibble) (d) User half worship (user_nibble) These data areas (a) ~ (d).

Description meta tag = 0x8012, which is a tag used as a content description meta tag in the MMT format. The type information of the program is recorded using the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S51.

(6) Acquiring and recording the corresponding information of the parental grade description element Next, referring to FIG. 24, description will be given of the processing of obtaining the parental rating descriptor corresponding information from the MMT format data received from the broadcasting station, and the program information record table (MH-SIT) corresponding to the MMT and the program corresponding to the MPEG-2TS Information record form (SIT) parent grade description element record processing. In addition, as explained earlier with reference to FIG. 4, the parental rating descriptor is recorded with information such as age restriction information of viewers of the program. Furthermore, as shown in FIG. 9, the description element corresponding to the parent description element is recorded in the MMT package table (MPT) or the event information table (MH-EIT) specified in the MMT format.

24 is a diagram showing the processing steps S61 to S63 executed by the receiving device 20, and a record example of parent rating descriptors in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S61 and S62. As a result of this processing, a parental rating descriptor with the data structure shown in FIG. 24(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S61 and S63 are executed. As a result of this processing, a parent rating descriptor with the data structure shown in FIG. 24(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S61) First, in step S61, the receiving device 20 obtains the MMT package table (MPT) or the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11 from which MMT package table (MPT), or event information table (MH-EIT), to obtain the information corresponding to the parent rating descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously described with reference to FIG. 8, the MMT package table (MPT) is a table included in the MMT control information (MMT-SI), and is an asset (image, image, The list of sounds, subtitles, etc., or the packaging of locations, etc. constitute a table of information. MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is related to content related information such as the name of the content (program, etc.), broadcast date and time, description of the content, etc. table.

The receiving device 20 obtains the parental rating descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)) from the MMT package table (MPT) or event information table (MH-EIT) Corresponding information. Specifically, it is to obtain information such as the viewing age restriction information of the program.

(Step S62) The process of step S62 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the MMT package table (MPT) corresponding to the MMT format or the event information table (MH-EIT) in step S61, and the program information corresponding to MPEG2-TS In the record form (SIT), the parental rating description element is recorded. In addition, the record field of the parent-level description element is set as the second description element loop (service information description element loop).

As a result, it will be recorded in the Program Information Recording Table (SIT) corresponding to MPEG2-TS, with a parental rating descriptor composed of the data shown in FIG. 24(a). In the parent grade description element shown in FIG. 24(a), the record description element tag=0x55. Description meta tag=0x55, which is a tag used as a parent-level description meta tag in the SIT corresponding to the previous MPEG2-TS.

Then, the country code (0x6A706E) representing Japan is also recorded in the country code (country_code). Then, the setting value of viewing age restriction information is also recorded in the rating information. Specifically, any one of the following values is recorded. 0x00 = undefined; 0x01～0x11＝The minimum allowable age for viewing is the set value (01～11)+3 0x12～0xFF＝Business definition This value is a value (code) common to MPEG2-TS format and MMT format, as long as the viewing age obtained from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format in step S61 The value corresponding to the restriction information (code information) can be obtained and recorded.

(Step S63) Step S63 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format in step S61, and the program information record table corresponding to the MMT (MH-SIT), record the parental rating description element. In addition, the record field of the parent-level description element is set as the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with the parental rating descriptor composed of the data shown in FIG. 24(b). In the parental rating descriptor shown in FIG. 24(b), the descriptor tag = 0x8013 is recorded. Description meta tag = 0x8013, which is a tag used as a parent grade description meta tag in the MMT format.

Then, the country code (0x6A706E) representing Japan is also recorded in the country code (country_code). Then, the setting value of viewing age restriction information is also recorded in the rating information. Specifically, any one of the following values is recorded. 0x00 = undefined; 0x01～0x11＝The minimum allowable age for viewing is the set value (01～11)+3 0x12～0xFF＝Business definition This value is a value (code) common to MPEG2-TS format and MMT format, as long as the viewing age obtained from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format in step S61 The value corresponding to the restriction information (code information) can be obtained and recorded.

(7) Acquiring and recording the corresponding information of the sound component description element Next, referring to FIG. 25, the following describes the acquisition processing of the sound component descriptor corresponding information from the MMT format data received from the broadcasting station, which corresponds to the program information record table (MH-SIT) and MPEG-2TS corresponding to the MMT The recording process of the sound component description element of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, information about the type, description, etc. of the sound component is recorded in the sound component description element. Furthermore, as shown in FIG. 9, the description element corresponding to the sound element description element is recorded in the MMT package table (MPT) or event information table (MH-EIT) specified in the MMT format.

FIG. 25 illustrates the processing steps S71 to S73 performed by the receiving device 20, and FIG. 26 illustrates the sound component descriptors in the program information recording tables (MH-SIT, SIT) generated by these processing results. Examples of records.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S71 and S72. As a result of this processing, a sound component descriptor with the data structure shown in FIG. 26(a) is recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S71 and S73 are executed. As a result of this processing, a sound component descriptor with the data structure shown in FIG. 26(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S71) First, in step S71, the receiving device 20 obtains the MMT package table (MPT) or the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11. The obtained MMT package table (MPT) or event information table (MH-EIT), and the information corresponding to the description of the sound component recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously described with reference to FIG. 8, the MMT package table (MPT) is a table included in the MMT control information (MMT-SI), and is an asset (image, image, The list of sounds, subtitles, etc., or the packaging of locations, etc. constitute a table of information. MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is related to content related information such as the name of the content (program, etc.), broadcast date and time, description of the content, etc. table.

The receiving device 20 obtains the sound component description elements recorded in the program information record table (MH-SIT, SIT (selection information table)) from the MMT package table (MPT) or event information table (MH-EIT) Corresponding information.

Figure 27 is a diagram showing the data structure of the sound component descriptors recorded in the MMT package table (MPT) and the event information table (MH-EIT). As shown in FIG. 27, the sound component descriptors recorded in MPT and MH-EIT in the MMT format contain the following information. (1a) Streaming content information (stream_content) (1b) Component type information (component_type) (1c) Stream type information (stream_type) (1d) Sound quality identification element (quality_indicator) (1e) Sampling frequency (sampling_rate)

An example of a part of the specific setting values of these pieces of information is shown in FIGS. 28-30. FIG. 28 is an example of (1a) setting values of stream content information (stream_content). FIG. 29 is an example of (1b) setting values of component type information (component_type). Fig. 30 is an example of the setting value of (1e) sampling frequency (sampling_rate). These are the values (codes) specified in the MMT, and the other set values of the above information (1a) to (1d) are specified in the MMT. In step S71, the receiving device 20 obtains the sound component descriptor with the data structure shown in FIG. 27 from the MMT package table (MPT) or the event information table (MH-EIT).

(Step S72) The process of step S72 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the sound component descriptor obtained from the MMT package table (MPT) or the event information table (MH-EIT) corresponding to the MMT format in step S71, which has the The recording information of the sound component description element formed by the data is directly recorded by using the recording information of the sound component description element corresponding to MPEG2-TS. In addition, the recording field of the sound component description element is set as the second description element loop (service information description element loop).

Figure 26(a) illustrates the data structure of the sound component description element of the program information record table (SIT) corresponding to MPEG2-TS. In the sound component description element shown in FIG. 26(a), the description description element tag=0xC4 is recorded, and also records: (1a) Streaming content information (stream_content) (1b) Component type information (component_type) (1c) Stream type information (stream_type) (1d) Sound quality identification element (quality_indicator) (1e) Sampling frequency (sampling_rate) These values.

These (1a) to (1e) values are sound component descriptors with the data structure shown in FIG. 27 obtained from the MMT package table (MPT) or event information table (MH-EIT) of MMT format data The recorded information can be directly reproduced. In addition, the description meta tag=0xC4 is a tag used as a sound component description meta tag in the SIT corresponding to the previous MPEG2-TS. It is the information obtained from the Event Information Table (MH-EIT).

(Step S73) Step S73 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

The receiving device 20 describes the information obtained from the MMT package table (MPT) or the event information table (MH-EIT) corresponding to the MMT format in step S71, and specifically describes the sound image component shown in FIG. 27 The element is directly recorded as the sound element description element of the program information recording table (MH-SIT) corresponding to the MMT. In addition, the recording field of the sound component description element is set as the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and has the sound component description element composed of the data shown in FIG. 26(b). The sound component description element shown in FIG. 26(b) is composed of the same data as the sound component description element shown in FIG. 27. The description meta tag = 0x8014 is recorded, and, as previously explained with reference to FIGS. 27 to 30 (1a) Streaming content information (stream_content) (1b) Component type information (component_type) (1c) Stream type information (stream_type) (1d) Sound quality identification element (quality_indicator) (1e) Sampling frequency (sampling_rate) These pieces of information are directly recorded in the setting values of the description elements of the sound image components received from the broadcasting station 11. Description meta tag=0x8014, which is a tag used as a sound component description meta tag in the MMT format.

(8) Acquiring and recording the corresponding information of the hyperlink description element As previously explained with reference to FIG. 4, in the hyperlink description element, information such as links to other programs or the inside of the program and related information of the program is recorded. Furthermore, as shown in FIG. 9, the description element corresponding to the hyperlink description element is in the table specified in the MMT format, and is not recorded.

The information corresponding to the hyperlink descriptor is not defined in the current MMT format data, so it comes from the acquisition processing of the hyperlink descriptor corresponding information of the MMT format data received from the broadcasting station, and the program corresponding to the MMT The recording process of the Hyperlink Descriptor of the Information Recording Table (MH-SIT) and the Program Information Recording Table (SIT) corresponding to MPEG-2TS is set not to be executed.

In addition, it may also be that in the program information recording table (MH-SIT) corresponding to MMT and the program information recording table (SIT) corresponding to MPEG-2TS, only the description meta tags of the hyperlink description elements are recorded. The information does not record the composition of the entity information, or it may be a setting that does not record even the formal information about the description meta tags and the like of the hyperlink descriptor.

(9) Data content description element corresponding information acquisition and record processing Next, referring to FIG. 31, the process of obtaining the information corresponding to the data content descriptor of the MMT format data received from the broadcasting station, the program information record table (MH-SIT) corresponding to MMT, and the program corresponding to MPEG-2TS Information record table (SIT) data content description element record processing. In addition, as previously explained with reference to FIG. 4, information such as detailed information about the data content is recorded in the data content description element. Also, as shown in FIG. 9, the description element corresponding to the data content description element is in the table specified in the MMT format and is not recorded.

31 is a diagram showing the processing steps S91 to S93 executed by the receiving device 20, and a recording example of the data content descriptor in the program information record table (MH-SIT) generated by these processing results.

The data content descriptor corresponding information recorded in the MMT format data received by the receiving device 20 from the broadcasting station is not compatible with the data content descriptor specified in MPEG2-TS, so it corresponds to the MPEG2-TS In the program information record table (SIT), the recording processing of the data content descriptor based on the information obtained from the MMT format data received from the broadcasting station will not be performed.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S91 and S93. As a result of this processing, a data content description element with the data structure shown in FIG. 31(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S91) First, in step S91, the receiving device 20 obtains the MMT package table (MPT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and obtains the program information from the MMT package table (MPT) The information corresponding to the content description element of the data recorded in the record table (MH-SIT (selection information table)).

As previously described with reference to FIG. 8, the MMT package table (MPT) is a table included in the MMT control information (MMT-SI), and is an asset (image, image, The list of sounds, subtitles, etc., or the packaging of locations, etc. constitute a table of information.

The receiving device 20 obtains the information corresponding to the data content descriptors recorded in the program information record table (MH-SIT (selection information table)) from the MMT package table (MPT). Specifically, it obtains detailed information about the content of the data.

An example of a part of the detailed information about the data content that can be obtained from the MMT package table (MPT) is shown in FIG. 32. The example shown in FIG. 32 is an example of information about subtitles of a program. In the MMT package table (MPT), in addition to the subtitle information, various content (program) related detailed information corresponding to the data content descriptor is recorded. The receiving device 20 is in step S91. Obtain this information from the MMT package table (MPT).

(Step S92) The process of step S92 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

As mentioned above, the information corresponding to the data content descriptors recorded in the MMT format data received from the broadcasting station is not compatible with the data content descriptors specified in MPEG2-TS, so the programs corresponding to MPEG2-TS In the information record form (SIT), the recording processing of the data content descriptor based on the information obtained from the MMT format data received from the broadcasting station will not be performed.

In this case, the receiving device 20 performs the processing of recording only the formal information such as the description meta tag of the data content descriptor in the program information record table (SIT) corresponding to MPEG-2TS, or not recording the physical information, or Any form of processing that does not record formal information, such as descriptive tags about data content descriptors.

(Step S93) Step S93 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the MMT package table (MPT) corresponding to the MMT format in step S91, and records the data content in the program information record table (MH-SIT) corresponding to the MMT Description element. In addition, the record field of the data content description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and it has a data content description element with the data structure shown in FIG. 31(b). In the description element tag (descriptor_tag) of the data content description element shown in FIG. 31(b), the label used as the data content description element tag in the MMT format is recorded.

Then, in the additional data component information (additional_data_component_info) In the recording field, the information obtained from the MMT package table (MPT) in step S91 is recorded.

(10) Acquiring and recording the corresponding information of the filled description element Next, referring to FIG. 33, description will be given on the acquisition processing of the filling descriptor corresponding information of the MMT format data received from the broadcasting station, and the program information recording table (MH-SIT) corresponding to MMT, and the program information corresponding to MPEG-2TS Recording process of the fill description element of the record table (SIT). In addition, as previously described with reference to FIG. 4, the filling description element system is recorded with information such as the data for ensuring the space of the description element, the invalidation information of the description element, and so on. Also, as shown in FIG. 10, the description element corresponding to the fill description element is in the table specified in the MMT format and is not recorded.

33 is a diagram showing the processing steps S101 to S103 performed by the receiving device 20, and a record example of the description descriptor filled in the program information record table (MH-SIT) generated by these processing results.

The padding descriptor is used to ensure the pre-specified descriptor recording space. For example, if there is an extra area outside the recording area of valid information, it will be used as a padding byte for blank data, for example [0000...] The field where the filled bytes are recorded.

For example, when the process of "(2) Overwriting the data of the MH-EIT storage packet with MH-SIT" described in (Process 1) of FIG. 12 was performed, once the original MH-EIT storage packet was changed The size will cause the start position of the subsequent packet to shift. In order to prevent such a situation, in the case of "overwriting the data of the MH-EIT storage packet with MH-SIT", in order to make it the same packet size as the original MH-EIT storage packet, the record will be The padding descriptor with padding bytes is recorded.

This process is performed in the case of "overwriting the data of the MH-EIT storage package with MH-SIT", etc., and will only be performed when it is necessary to describe the adjustment of the meta-record field or the size of the package, otherwise it will not The record of this description element is required.

Explain the processing of each step. (Step S101) First, in step S101, the receiving device 20 calculates the number of adjustment bytes (fill bits) in the case where the description meta record area of the MH-SIT storage packet (MMT packet) corresponding to the MMT or the packet size adjustment is necessary Tuple).

(Step S102) The process of step S102 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

As mentioned above, the record of filling the description element is only required when the description of the meta record area or the adjustment of the packet size is necessary in the case of "overwriting the data of the MH-EIT storage package with MH-SIT". The processing is unnecessary when generating the program information record table (SIT) corresponding to MPEG2-TS.

Therefore, in the program information recording table (SIT) corresponding to MPEG2-TS, the recording process of filling description elements will not be performed. In this case, the receiving device 20 performs a process of recording only formal information such as description meta tags filled with description elements in the program information recording table (SIT) corresponding to MPEG-2TS, or not recording physical information, or even Any form of processing that does not record formal information such as the description meta tag of the description descriptor.

(Step S103) Step S103 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 records the adjustment position calculated in step S101 in at least one of the first and second loops of the program information record table (MH-SIT) corresponding to the MMT The padding description of the padding bytes of the number of tuples.

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with a filled description element composed of the data shown in FIG. 33(b). In the filler descriptor shown in FIG. 33(b), the descriptor tag = 0xFC00 is recorded. At present, as the description meta tags in the MMT format, 0x800B, 0x800E-F, 0x8022, 0x8043-0xEBFF, 0xEC00-0xEFFF, and 0xF004-0xFBFF, 0xFC00-0xFFFF are reserved (idle) states. At this point, in the MMT format, there is no provision for describing meta tags, so if one of these reserved tags is selected, the description meta tag = 0xFC00 will be used as the filled description meta tag in the MMT format.

Furthermore, in the field of stuffing byte (stuffing_byte) recording, the stuffing bytes of the adjusted number of bytes calculated in step S101 are recorded.

(11) Acquiring and recording the corresponding information of the local transmission stream descriptor As previously described with reference to FIG. 4, the local transport stream descriptor is recorded with local TS stream information, such as maximum bit rate information. Also, as shown in FIG. 9, the descriptor corresponding to the descriptor of the partial transmission stream is in the table specified by the MMT format, and is not recorded.

The information corresponding to the local transmission stream descriptor is not defined in the MMT format data, so it comes from the acquisition processing of the local transmission stream descriptor corresponding information of the MMT format data received from the broadcasting station, and corresponds to the MMT The recording process of the partial transmission stream descriptor of the program information record table (MH-SIT) and the program information record table (SIT) corresponding to MPEG-2TS is set not to be executed.

However, the receiving device 20 can also generate the maximum bit rate of the data stored in the generated TS packet string when the program information record table (SIT) corresponding to MPEG-2 TS is generated and transmitted Information, etc. are calculated and the calculated value is recorded in the local transmission stream descriptor of the program information record table (SIT) corresponding to MPEG-2TS. Or, it can be done, only the formal information such as the description meta tag of the local transmission stream description element is recorded, and the processing of not recording the physical information is not recorded, or even the description meta tag of the local transmission stream description element is in the form of Sexual information is not recorded.

(12)Acquisition and record processing of event group description element correspondence information Next, referring to FIG. 34 and FIG. 35, the process of obtaining the event group descriptor corresponding information from the MMT format data received from the broadcasting station, and the program information record table (MH-SIT), MPEG- The recording process of the event group descriptor of the program information record table (SIT) corresponding to 2TS. In addition, as explained earlier with reference to FIG. 4, information is recorded in the event group description element, grouping of the same content event when the event is shared, and link information of the event relay. Furthermore, as shown in FIG. 9, the descriptor corresponding to the descriptor of the event group is recorded in the event information table (MH-EIT) specified in the MMT format.

It is illustrated in FIG. 34, the processing steps S121 to S123 performed by the receiving device 20, and illustrated in FIG. 35, the event groups in the program information record table (MH-SIT, SIT) generated by these processing results Example of group description element record.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processes of steps S121 and S122. As a result of this processing, an event group descriptor with the data structure shown in FIG. 35(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S121 and S123 are executed. As a result of this process, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with an event group description element composed of the data shown in FIG. 35(b).

Explain the processing of each step. (Step S121) First, in step S121, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the event group description element recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. The receiving device 20 obtains the information corresponding to the event group descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT).

Specifically, it is information such as the grouping of events with the same content when the events are shared, and link information such as event relays. Wait, get it. The setting of the event group descriptor is common to MMT and MPEG2-TS formats.

(Step S122) The process of step S122 is a process performed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S121, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Event group description element. In addition, the record area of the event group description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, and it has an event group description element composed of the data shown in FIG. 35(a). In the event group description element shown in FIG. 35(a), description element tag=0xD6 is recorded, and information about the service ID, event ID, etc. of the event group is also recorded. The description meta tag=0xD6 is a tag used as an event group description meta tag in the SIT corresponding to the previous MPEG2-TS. The information about the service ID, event ID, etc. of the event group is the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S121.

(Step S123) Step S123 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S121, and records it in the program information record table (MH-SIT) corresponding to the MMT Event group description element. In addition, the record area of the event group description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with the event group description element composed of the data shown in FIG. 35(b). In the event group description element shown in FIG. 35(b), description element tag=0x800C is recorded, and information about the service ID, event ID, etc. of the event group is also recorded. Description meta tag=0x800C, which is a tag used as an event group description meta tag in the MMT format. The information about the service ID, event ID, etc. of the event group is the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S121.

(13) Acquiring and recording information corresponding to broadcaster name descriptor Next, referring to FIG. 36, it is explained that the acquisition processing of the broadcaster name descriptor corresponding information from the MMT format data received from the broadcasting station corresponds to the program information record table (MH-SIT) corresponding to MMT and MPEG-2TS. Recording process of the broadcaster name descriptor of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, information such as the broadcaster name (broadcasting station name) and the like is recorded in the broadcaster name descriptor. Furthermore, as shown in FIG. 9, the descriptor corresponding to the descriptor of the broadcaster name is recorded in the broadcaster information table (MH-BIT) specified in the MMT format.

36 is a diagram showing the processing steps S131 to S133 executed by the receiving device 20, and an example of the record of the broadcaster name descriptor in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates the program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processes of steps S131 and S132. As a result of this processing, a broadcaster name descriptor with the data structure shown in FIG. 36(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S131 and S133. As a result of this process, the broadcaster name descriptor with the data structure shown in FIG. 36(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S131) First, in step S131, the receiving device 20 obtains the broadcast information table (MH-BIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the broadcast information table (MH-BIT) To obtain the information corresponding to the descriptor of the broadcaster name recorded in the program information record table (MH-SIT, SIT (selection information table)).

As explained earlier with reference to FIG. 8, the broadcaster information table (MH-BIT) is a table included in the MMT control information (MMT-SI), and is a table recording information of broadcasters on the network. The receiving device 20 obtains the information corresponding to the descriptor of the broadcaster name recorded in the program information record table (MH-SIT, SIT (selection information table)) from the broadcaster information table (MH-BIT). Specifically, information such as the broadcaster name (broadcasting station name) is obtained.

(Step S132) The process of step S132 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131, and in the program information record table (SIT) corresponding to MPEG2-TS, Record the broadcaster name description element. In addition, the record field of the broadcaster name description element is set to the second description element loop (service information description element loop).

As a result, it is recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has the broadcaster name descriptor of the data structure shown in FIG. 36(a). In the broadcaster name description element shown in FIG. 36(a), description element tag=0xD8 is recorded, and information such as the broadcaster name (broadcasting station name) and the like are also recorded. Description meta tag=0xD8, which is a tag used as a broadcaster name description meta tag in the previous SIT corresponding to MPEG2-TS. The broadcaster name (broadcasting station name) and other information are obtained from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131.

(Step S133) Step S133 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131, and in the program information record table (MH-SIT) corresponding to the MMT, Record the broadcaster name description element. In addition, the record field of the broadcaster name description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, and the broadcaster name descriptor with the data structure shown in FIG. 36(b) will be recorded. In the broadcaster name description element shown in FIG. 36(b), description element tag=0x8018 is recorded, and information such as the broadcaster name (broadcasting station name) and the like is also recorded. Description meta tag = 0x8018, which is a tag used as a description meta tag for the broadcaster name in the MMT format. The broadcaster name (broadcasting station name) and other information are obtained from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131.

(14) Acquiring and recording the corresponding information of the component group description element As previously described with reference to FIG. 4, information on how much attention is paid to the component group in the TV set (MVTV) is recorded in the component group description element. Furthermore, as shown in FIG. 9, the description element corresponding to the component group description element is in the table specified in the MMT format and is not recorded.

The information corresponding to the component group descriptor is not defined in the current MMT format data. Therefore, the process of obtaining the component group descriptor corresponding information from the MMT format data received from the broadcasting station corresponds to the MMT The recording process of the component group descriptor of the program information record table (MH-SIT) and the program information record table (SIT) corresponding to MPEG-2TS is set to not be executed.

In addition, it may also be in the form of recording only the description element label of the component group description element in the program information record table (MH-SIT) corresponding to MMT and the program information record table (SIT) corresponding to MPEG-2TS The sexual information does not record the composition of the entity information, or it may be a setting that does not record the formal information about the description meta tag of the component group description element.

(15)Acquisition and record processing of corresponding information of series description elements Next, referring to FIG. 37 and FIG. 38, it is explained that the acquisition processing of the series description element corresponding information from the MMT format data received from the broadcasting station corresponds to the program information record table (MH-SIT) and MPEG-2TS corresponding to the MMT The recording process of the series description element of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, the series description element stores information such as series information that spans multiple events. Furthermore, as shown in FIG. 9, the description elements corresponding to the series of description elements are recorded in the event information table (MH-EIT) specified in the MMT format.

Shown in FIG. 37, the processing steps S151 to S153 performed by the receiving device 20, shown in FIG. 38, the series of descriptions in the program information record table (MH-SIT, SIT) generated by these processing results Examples of Yuan's records.

When the receiving device 20 generates the program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processes of steps S151 and S152. As a result of this processing, a series of descriptors with the data structure shown in FIG. 38(a) will be recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S151 and S153 are executed. As a result of this processing, it will be recorded in the program information record table (MH-SIT) corresponding to MMT, with a series of description elements composed of the data shown in FIG. 38(b).

Explain the processing of each step. (Step S151) First, in step S151, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the series description elements recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. The receiving device 20 obtains the information corresponding to the series description elements recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, it is a series of information that spans multiple events. The setting of this series of descriptors is common to MMT and MPEG2-TS formats.

(Step S152) The process of step S152 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S151, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Series description element. In addition, the record field of the series description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has a series of descriptors composed of the data shown in FIG. 38(a). In the series description element shown in FIG. 38(a), description element tag=0xD5 is recorded, and information such as series information spanning plural events is also recorded. Description meta tag=0xD5, which is a tag used as a series of description meta tags in the previous SIT corresponding to MPEG2-TS. The series of information that spans multiple events is recorded as: series ID, number of rebroadcasts, program type, series name, etc. In the program type recording field, values corresponding to the information shown in the lower part of FIG. 38 are recorded. These information are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S151.

(Step S153) Step S153 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S151, and records it in the program information record table (MH-SIT) corresponding to the MMT Series description element. In addition, the record field of the series description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to MMT, with a series of description elements composed of the data shown in FIG. 38(b). In the series description element shown in FIG. 38(b), description element tag=0x8016 is recorded, and information such as series information across plural events is also recorded. Description meta tag = 0x8016, which is a tag used as a series of description meta tags in the MMT format. The record information of the series of information that spans multiple events is the same information as MPEG2-TS, and is obtained from the event information table (MH-EIT) corresponding to the MMT format.

(16) Acquisition and recording of information corresponding to network identification descriptors Next, referring to FIG. 39, it is explained that the acquisition processing of the network identification descriptor correspondence information from the MMT format data received from the broadcasting station corresponds to the program information record table (MH-SIT) corresponding to the MMT and MPEG-2TS. The recording process of the network identification descriptor of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, the network information of the source of the generation of the local TS (Transport Stream) is recorded in the network identification descriptor. Furthermore, as shown in FIG. 9, the description element corresponding to the component description element is recorded in the event information table (MH-EIT) specified in the MMT format.

39 is a diagram showing the processing steps S161 to S163 executed by the receiving device 20, and a recording example of the network identification descriptor in the program information record table (SIT) generated by these processing results. In addition, the network identification descriptor is the network information of the source of the local TS (transport stream), as described above, and is necessary information when sending TS packets in accordance with the MPEG2-TS format. It is unnecessary information when sending data composed of MMT packets in accordance with the MMT format.

Therefore, when the receiving device 20 generates the program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S161 and S162, and corresponds to MPEG2-TS In the program information record table (SIT), a network identification descriptor with the data structure shown in FIG. 39(a) is recorded.

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, the processes of steps S161 and S163 are executed. In this case, the network identification descriptor is not recorded in the program information recording table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S161) First, in step S161, the receiving device 20 obtains the event information table (MH-EIT) from the control information (SI) of the MMT format data received by the broadcasting station 11, and from the event information table (MH-EIT) To obtain the information corresponding to the network identification descriptor recorded in the program information record table (SIT (Select Information Table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description.

The receiving device 20 obtains the information corresponding to the network identification descriptor recorded in the program information record table (SIT (Select Information Table)) from the event information table (MH-EIT). Specifically, it obtains information such as the network information of the local TS (transport stream) generation source.

(Step S162) The process of step S162 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S161, and records it in the program information recording table (SIT) corresponding to MPEG2-TS. Network identification descriptor. In addition, the recording field of the network identification descriptor is set as the first descriptor loop (transmission information describes the meta loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, and it has a network identification descriptor composed of the data shown in FIG. 39(a). In the network identification descriptor shown in FIG. 39(a), the record descriptor meta tag=0xC2. Description meta tag = 0xC2, which is a tag used as a network identification description meta tag in the SIT corresponding to the previous MPEG2-TS.

Then, the country code (country_code), media type (media_type), network ID (network_id), etc. are also recorded. These are the information obtained from the event information table (MH-EIT) corresponding to the MMT format in step S161.

The information of the event information table (MH-EIT) corresponding to the MMT format as the source of the acquisition of these pieces of information will be described with reference to FIG. 40. Country code (country_code) is based on the language code (ISO_639_langage_code) recorded in the MH-short format event description element of the event information table (MH-EIT) corresponding to the MMT format shown in Figure 40(1). The country code of the language is recorded.

The media type (media_type) refers to the information recorded in the service list description element of the MH-EIT (MH Event Information Table) specified in the MMT format shown in FIG. 40(2), or the service type information of the service description element. Obtain and record.

The network ID (network_id) is obtained and recorded by the original network ID (original_network_id) recorded in the MH-EIT (event information table) specified in the MMT format shown in FIG. 40(3).

(Step S163) Step S163 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

As mentioned above, the network identification descriptor is the network information of the local TS (transport stream) generation source, which is necessary information when sending TS packet strings in accordance with the MPEG2-TS format. It is unnecessary information when sending data composed of MMT packets in accordance with the MMT format.

Therefore, the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, and then the program information record table (MH-SIT) corresponding to the MMT Inside, the network identification descriptor is not recorded.

(17) Acquiring and recording the corresponding information of the local transmission stream time descriptor Next, referring to FIG. 41, the process of obtaining information corresponding to the local transmission stream time descriptor of the MMT format data received from the broadcasting station, and the program information record table (MH-SIT), MPEG-2TS corresponding to the MMT Corresponding recording processing of the local transmission stream time descriptor of the program information record table (SIT). In addition, as explained earlier with reference to FIG. 4, the generation time information of the local TS (transport stream) is recorded in the local transmission stream time descriptor. Also, as shown in FIG. 9, the descriptor corresponding to the descriptor of the local transmission stream time is in the table specified in the MMT format and is not recorded.

Although the table specified in the MMT format does not set the same descriptor as the local transmission stream time descriptor, the same physical data as the local transmission stream time descriptor can be obtained from each table.

41 is a diagram showing the processing steps S171 to S173 executed by the receiving device 20, and a recording example of the local transmission stream time descriptor in the program information record table (SIT) generated by these processing results. In addition, the local transmission stream time descriptor is the generation time information of the local TS (transport stream) as described above, and is necessary information when sending TS packets in accordance with the MPEG2-TS format. It is unnecessary information when sending data composed of MMT packets in accordance with the MMT format.

Therefore, when the receiving device 20 generates the program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processing of steps S171 and S172, and corresponds to MPEG2-TS The program information record table (SIT) records the local transmission stream time descriptor with the data shown in FIG. 41(a).

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S171 and S173. In this case, in the program information record table (MH-SIT) corresponding to MMT, the local transmission stream time descriptor is not recorded.

Explain the processing of each step. (Step S171) First, in step S171, the receiving device 20 obtains the event information table (MH-EIT) and the time offset table (MH-TOT) from the control information (SI) of the MMT format data received by the broadcasting station 11. From these event information tables (MH-EIT) and time offset tables (MH-TOT), the information corresponding to the local transmission stream time descriptors recorded in the program information record table (SIT (selection information table)) is obtained.

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. In addition, the time offset table (MH-TOT) is a table included in the MMT control information (MMT-SI), and is a table that records date and time related information such as the current date and time information.

The receiving device 20 obtains the local transmission stream time description recorded in the program information record table (SIT (selection information table)) from these event information tables (MH-EIT) and time offset tables (MH-TOT) Information corresponding to yuan. Specifically, the generation time information of the local TS (transport stream) is obtained.

(Step S172) The process of step S172 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) and the time offset table (MH-TOT) corresponding to the MMT format in step S171, and corresponds to the MPEG2-TS In the program information record table (SIT), the local transmission stream time descriptor is recorded. In addition, the recording field of the local transmission stream time descriptor is set to the first descriptor meta loop (transmission information description meta loop) or the second descriptor meta loop (service information description meta loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, which has the local transmission stream time descriptor of the data shown in FIG. 41(a). In the local transmission stream time description element shown in FIG. 41(a), the record description element tag=0xC3 is recorded. Description meta tag = 0xC3, which is a tag used as a partial transmission stream time description meta tag in the previous SIT corresponding to MPEG2-TS.

Then it is also recorded: the event version (event_version_number), event start time (event_start_time), event duration (Duration) and other information. Then it also records: the offset that represents the time difference of summer time (Offset), the offset flag (offset_flag) that represents the time before the offset (0) is the back (1), and the change of the descriptor of other SIT (descriptor) Status (other_descriptor_status), etc. These are the information obtained from the event information table (MH-EIT) and the time offset table (MH-TOT) corresponding to the MMT format in step S171.

The information of the event information table (MH-EIT) and the time offset table (MH-TOT) corresponding to the MMT format as the source of the acquisition of these pieces of information will be described with reference to FIG. 42.

The event version (event_version_number), event start time (event_start_time), event duration (Duration), etc., are recorded in the event information table (MH-EIT) corresponding to the MMT format shown in Figure 42(1) The information of (a) version number (version_number), (b) start time (start_time), (c) duration (duration) is obtained and recorded.

The offset (Offset) and offset flag (offset_flag) representing the time difference of summer time are recorded in the time offset table (MH-TOT) specified in the MMT format shown in Figure 42(2) ( d) The offset (time difference) information (local_time_offset, etc.) is obtained and recorded.

The change status (descriptor_status) of the descriptor of other SIT (other_descriptor_status) is the (e) time information (JST_time) recorded in the time offset table (MH-TOT) specified in the MMT format shown in Figure 42(3) ) Obtain and record.

(Step S173) Step S173 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

As described above, the local transmission stream time descriptor is the generation time information of the local TS (transport stream), and is necessary information when sending TS packet strings in accordance with the MPEG2-TS format. It is unnecessary information when sending data composed of MMT packets in accordance with the MMT format.

Therefore, the receiving device 20 generates the program information record table (MH-SIT) corresponding to the MMT based on the MMT format data received from the broadcasting station, and then the program information record table (MH-SIT) corresponding to the MMT In the system, the local transmission stream time description element is not recorded.

(18) Acquiring and recording the corresponding information of the broadcast ID descriptor Next, referring to FIG. 43, the acquisition processing of the broadcast ID descriptor corresponding information from the MMT format data received from the broadcast station, the program information record table (MH-SIT) corresponding to MMT, and the program corresponding to MPEG-2TS The record processing of the broadcast ID description element of the information record table (SIT).

In addition, as explained earlier with reference to FIG. 4, information such as various IDs at the time of broadcasting necessary for reproduction of the data broadcasting is recorded in the broadcasting ID descriptor. Also, as shown in FIG. 9, the description element corresponding to the broadcast ID description element is in the table specified in the MMT format and is not recorded. Although the table specified in the MMT format does not have the same descriptor as the broadcast ID descriptor, the same physical data as the broadcast ID descriptor can be obtained from each table.

43 is a diagram showing the processing steps S181 to S183 executed by the receiving device 20, and a record example of the broadcast ID descriptor in the program information record table (MH-SIT, SIT) generated by these processing results.

When the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station, it executes the processes of steps S181 and S182. As a result of this processing, a broadcast ID descriptor with the data structure shown in FIG. 43(a) is recorded in the program information record table (SIT) corresponding to MPEG2-TS.

On the other hand, when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station, it executes the processes of steps S181 and S183. As a result of this processing, a broadcast ID descriptor with the data structure shown in FIG. 43(b) will be recorded in the program information record table (MH-SIT) corresponding to MMT.

Explain the processing of each step. (Step S181) First, in step S181, the receiving device 20 obtains the event information table (MH-EIT) and the broadcaster information table (MH-BIT) from the control information (SI) of the MMT format data received by the broadcasting station 11 from The event information table (MH-EIT) and broadcaster information table (MH-BIT) obtain the information corresponding to the broadcast ID descriptor recorded in the program information record table (MH-SIT, SIT (selection information table)).

As previously explained with reference to FIG. 8, MH-EIT (event information table) is a table included in MMT control information (MMT-SI), which is the name, broadcast date and time of the content (program, etc.) recorded Table of content related information such as content description. MH-BIT (broadcaster information table) is a table included in MMT control information (MMT-SI), which is a table recording information of broadcasters on the network. The receiving device 20 obtains the broadcast ID recorded in the program information record table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT) and broadcaster information table (MH-BIT) Describe the information corresponding to the element. Specifically, it is information such as information such as various IDs at the time of broadcasting necessary for the reproduction of data broadcasting.

(Step S182) The process of step S182 is a process executed when the receiving device 20 generates a program information record table (SIT) corresponding to MPEG2-TS based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) and the broadcaster information table (MH-BIT) corresponding to the MMT format in step S181, and corresponds to the MPEG2-TS In the program information record table (SIT), the broadcast ID descriptor is recorded. In addition, the record field of the broadcast ID description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (SIT) corresponding to MPEG2-TS, and has a broadcast ID descriptor that is composed of the data shown in FIG. 43(a). In the broadcast ID description element shown in FIG. 43(a), the description element tag=0x85 is recorded, and the original network ID (original_network_id), TLV stream ID (tlv_stream_id), and event ID (event_id) are also recorded. , Broadcaster ID (broadcaster_id) and other information. Description meta tag=0x85, which is a tag used as a broadcast ID description meta tag in the SIT corresponding to the previous MPEG2-TS. The original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id) and other information are the event information table (MH-EIT) corresponding to the MMT format in step S181 ), the information obtained by the broadcaster information table (MH-BIT).

(Step S183) Step S183 is a process executed when the receiving device 20 generates a program information record table (MH-SIT) corresponding to MMT based on the MMT format data received from the broadcasting station.

In this case, the receiving device 20 uses the information obtained from the event information table (MH-EIT) and broadcaster information table (MH-BIT) corresponding to the MMT format in step S181, and the program information corresponding to the MMT In the record table (MH-SIT), the broadcast ID descriptor is recorded. In addition, the record field of the broadcast ID description element is set to the second description element loop (service information description element loop).

As a result, it will be recorded in the program information record table (MH-SIT) corresponding to the MMT, with the broadcast ID description element composed of the data shown in FIG. 43(b). In the broadcast ID description element shown in FIG. 43(b), the description element tag=0xFC01 is recorded, and the original network ID (original_network_id), TLV stream ID (tlv_stream_id), and event ID (event_id) are also recorded , Broadcaster ID (broadcaster_id) and other information. Description meta tag = 0xFC01, which is a tag used as a broadcast ID description meta tag in the MMT format. The original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id) and other information are the event information table (MH-EIT) corresponding to the MMT format in step S181 ), the information obtained by the broadcaster information table (MH-BIT).

The record information of the event information table (MH-EIT) and the broadcaster information table (MH-BIT) corresponding to the MMT format as the source of the acquisition of these information will be described with reference to FIG. 44.

The original network ID (original_network_id) is obtained and recorded by (a) the original network ID (original_network_id) recorded in the event information table (MH-EIT) corresponding to the MMT format shown in FIG. 44(1).

TLV stream ID (tlv_stream_id) and event ID (event_id) are (b) TLV stream ID (tlv_stream_id) recorded in the event information table (MH-EIT) corresponding to the MMT format shown in Figure 44(1) ), (c) Event ID (event_id), obtain and record.

The broadcaster ID (broadcaster_id) is obtained and recorded by (d) the broadcaster ID (broadcaster_id) recorded in the broadcaster information table (MH-BIT) corresponding to the MMT format shown in FIG. 44(2).

[8. About the composition and processing of the information processing device that receives MMT format data, generates a program information record table (MH-SIT, SIT) and sends it] Next, referring to FIG. 45, the configuration and processing of an information processing device that receives MMT format data, generates a program information record table (MH-SIT, SIT), and transmits it will be described.

As explained before, the receiving device 20 inputs data in the MMT format from the broadcasting station 11 and executes the following processing 1 or processing 2. (Process 1) Generate the MMT format data composed of the MMT packet string, and generate a program information record table (MH-SIT), store it in the MMT packet, and then send it to the network connection device 30. (Process 2) Convert the MMT format to MPEG2-TS format, generate MPEG-2 TS format data composed of TS packet strings, and generate a program information record table (SIT) to store in the MPEG2-TS packet and then send it to the network Connecting device 30.

45 is a diagram showing the configuration of the information processing device 400 corresponding to the receiving device 20. The data input unit 401 uses MMT format data 431, that is, image data, audio data, and various tables (MPT, MH-EIT, MH-BIT, MH-SDT, etc.) as control information (SI). MH-TOT, etc.) MMT format data 431, input. The data input part 401 is a receiving part that receives transmission data from a broadcasting station or a content server that sends MMT format data 431, or performs data reading from a medium in which MMT format data 431 is recorded Is composed of a media reading unit, etc.

The MMT format data 431 input from the data input section 401 is data in accordance with the data format described above with reference to FIG. 2 and contains high-definition image data such as HEVC images.

The MMT format data 431 is stored in the memory section 404 under the control of the control section 403. The user input unit 402 inputs, for example, a request to start data transmission to a network connection device.

Once a data transmission start request is input from the user input part 402, the MMT format data 431 stored in the memory part 404 is input to the demultiplexer (DeMUX) 405 based on the input as a trigger. Demultiplexer (DeMUX) 405, from MMT format data 431, obtains a packet storing various data such as images, sounds, subtitles, etc., or control information (TLV-SI, MMT-SI) containing various tables mentioned above, and Packets classified into data types are inputted to the caption data generation unit 411, video data generation unit 412, audio data generation unit 413, and control information analysis unit 414 of the data processing unit 406 according to the type of data.

The subtitle data generating unit 411 is input from the data input unit 401 and stored in the MMT format data 331 in the memory unit 404, obtains the subtitle data, and generates streaming file storage data specified in the BDAV format. The video data generating unit 412 is input from the data input unit 401 and is stored in the MMT format data 331 in the memory unit 404 to obtain video data and generate streaming file storage data specified in the BDAV format. The audio data generating unit 413 is input from the data input unit 401 and is stored in the MMT format data 431 in the memory unit 404 to obtain audio data to generate streaming file storage data specified in the BDAV format.

The control information analysis unit 414 is input from the data input unit 401 and stored in the MMT format data 431 in the memory unit 404 to obtain control information (TLV-SI including notification information, reproduction control information, copy control information, etc.) , MMT-SI) and other control information.

The program information record table generation unit 416 is a control information analysis unit 414, which controls the control information (SI) contained in the MMT format data, that is, a plurality of various tables (MPT, MH-EIT, MH-BIT , MH-SDT, MH-TOT, etc.) are inputted, and the program information record table (MH-SIT, SIT) is generated.

In addition, when the transmission data is composed of MMT packets in accordance with the MMT format, a program information record table (MH-SIT) corresponding to the MMT format is generated. On the other hand, if the transmission data is composed of TS packets in accordance with the MPEG2-TS format, a program information record table (SIT) corresponding to the MPEG2-TS format is generated.

The multiplexer (MUX) 415 converts the subtitle, video, and audio data converted by the subtitle data generating unit 411, video data generating unit 412, and audio data generating unit 413, and the control information analyzing unit 414 from the MMT format data 331 Control information (TLV-SI, MMT-SI), etc., and the program information record table (MH-SIT, SIT) generated by the program information record table generation unit 416 are input to generate a packet storing these data string.

The packet string generated here is: MMT format data composed of MMT packet strings, or Any one of MPEG2-TS format data composed of TS packets.

The MMT format data formed by the MMT packet string includes: MMT packets storing a program information record table (MH-SIT) corresponding to the MMT format. In addition, the MPEG2-TS format data composed of TS packet strings includes: TS packets storing a program information record table (SIT) corresponding to the MPEG2-TS format.

The transmission data 432 generated by the data processing unit 406 is sent to the network connection device through the communication unit 407 under the control of the control unit 403.

Next, the procedure of the processing executed by the information processing device 400 described with reference to FIG. 45 will be described with reference to the flowchart shown in FIG. 46.

The processing according to the flow shown in FIG. 46 can be performed according to the program stored in the memory section of the information processing device under the control of the data processing section (control section) equipped with a CPU having a program execution function, for example. carried out. The processing of each step shown in the flow of FIG. 46 is explained in order below.

(Step S201) First, the information processing device 400 enters MMT format data through the data input unit 401 in step S201. The data includes image data, audio data, subtitle data, and control information (TLV-SI, MMT-SI), etc. in which notification information or control information is stored. In addition, the control information includes: a plurality of various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH-TOT, etc.) in which program information is recorded.

(Step S202) Next, in step S202, the information processing device 400 performs demultiplexing processing of the input MMT format data, that is, data separation processing of data type units. Perform separation processing of images, sounds, subtitles, control information, etc.

(Step S203) Next, in step S203, the information processing device 400 determines whether the transfer data sent to an external device such as a network connection device is MMT format data or MPEG2-TS format data. The determination is to confirm whether the sending destination device can process MMT format data by prior communication with the sending destination device, if it is processable, set the sending data to MMT format data, if it is not processable, set In this way, MPEG2-TS format data is processed.

When the transmission data is set to MMT format data, the processes of steps S204 to S205 are executed. On the other hand, when the transmission data is set to MPEG2-TS format data, the processes of steps S206 to S207 are executed.

(Step S204) When the transmission data is set to MMT format data, in step S204, the information processing device 400 generates a program information record table (MH-SIT) corresponding to the MMT format.

That is, the program information record table generating unit 416 of the data processing unit 406 shown in FIG. 45 is a plurality of various tables (MPT, MH-EIT, MH-BIT, MH) included in the MMT format data -The information recorded in SDT, MH-TOT, etc.) is selected and obtained, and a program information record table (MH-SIT) corresponding to the MMT format is generated.

(Step S205) Next, in step S205, the information processing device 400 generates, from the MMT packet storing the program information record table (MH-SIT) corresponding to the MMT format generated in step S204, and storing the image constituting the transmission content, The MMT packet string corresponding to the MMT format of the MMT packet of the content data such as sound is sent through the network.

(Step S206) On the other hand, in step S203, when the transmission data is set to MPEG2-TS format data, in step S206, the information processing device 400 generates a program information record table (SIT) corresponding to the MPEG2-TS format.

That is, the program information record table generating unit 416 of the data processing unit 406 shown in FIG. 45 is a plurality of various tables (MPT, MH-EIT, MH-BIT, MH) included in the MMT format data -The information recorded in SDT, MH-TOT, etc.) is selected and obtained, and a program information record table (SIT) corresponding to the MPEG2-TS format is generated.

(Step S207) Next, in step S207, the information processing device 400 generates, from the TS packet storing the program information record table (SIT) corresponding to the MPEG2-TS format generated in step S206, and storing the image constituting the transmission content, The TS packet string corresponding to the MPEG2-TS format formed by the TS packet of the content data such as sound is transmitted through the network.

In step S205 or step S207, the MMT packet or TS packet sent from the information processing device 400 is sent to the network connection device. The data processing unit of the network connection device that received the MMT packet string or TS packet string will obtain the MH-SIT storage packet recorded with the program information from each packet string based on the packet identifier in any case, or SIT stores the package, and the program information can be used for reference and use. For example, the data processing unit of the network connection device can perform such processing that the program information is read from the program information storage packet and displayed on the display unit.

[9. Configuration example of information processing device] Next, an example of the hardware configuration of the network connection device (external device) that receives the transmission data from the information processing device 400 and the information processing device 400 described with reference to FIG. 45 will be described with reference to FIG. 47.

The CPU (Central Processing Unit) 601 is a data processing unit that performs various processes according to a program stored in the ROM (Read Only Memory) 602 or the memory unit 608, and functions. For example, the processing is executed in accordance with the program described in the above embodiment. The RAM (Random Access Memory) 603 stores programs or data to be executed by the CPU 601. These CPU 601, ROM 602, and RAM 603 are connected to each other via a bus 604.

The CPU 601 is connected to the I/O interface 605 through the bus 604, and the I/O interface 605 is connected with an input portion 606 made of various switches, a keyboard, a mouse, a microphone, etc., a display, a speaker, etc. Output section 607. The CPU 601 executes various processes in accordance with the designation input from the input unit 606, and outputs the processing result to, for example, the output unit 607.

The memory section 608 connected to the I/O interface 605 is made of, for example, a hard disk, etc., and stores programs executed by the CPU 601 or various data. The communication section 609 functions as a transmission and reception section for data communication and a transmission and reception section for broadcast waves through a network such as the Internet or a local area network to communicate with external devices.

The driver 610 connected to the I/O interface 605 drives a removable medium 611 such as a magnetic disk, an optical disk, an optical disk, or a semiconductor memory such as a memory card to perform data recording or reading.

[10. Summary of the composition of this disclosure] The above, with reference to specific embodiments, explains the disclosed embodiments in detail. However, at the same time, within the scope of not deviating from the purpose of the present disclosure, the practitioner may modify or substitute the embodiments, which is self-evident. That is to say, these are only to exemplify the present invention and should not be interpreted in a limited way. To judge the purpose of this disclosure, you should refer to the scope of patent application.

In addition, the technology disclosed in this specification may adopt the following configuration. (1) An information processing device It includes: a data processing unit that inputs MMT (MPEG Media Transport) format data and generates transmission data to be sent to the network connection device; Department of data processing Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table.

(2) The information processing device according to (1), wherein, Department of data processing Obtain program information from the control information record table specified in the MMT format.

(3) The information processing device according to (2), wherein, The control information record form prescribed in the previous MMT format is: At least the event information table (MH-EIT), or MMT package table (MMT), or service description table (MH-SDT), or broadcaster information table (MH-BIT), or time offset table (MH-TOT) Any table.

(4) The information processing device according to any one of (1) to (3), wherein, The predecessor data processing department generates: The transmission data is composed of MMT packets in accordance with the MMT format or TS packets in accordance with the MPEG2-TS format.

(5) The information processing device according to any one of (1) to (4), wherein, Department of data processing In the case of generating transmission data composed of TS packets in accordance with the MPEG2-TS format, format conversion is performed to convert the input data, that is, the MMT format data, into the MPEG2-TS format.

(6) The information processing device according to any one of (1) to (5), wherein, The MMT format data input by the predecessor data processing department is the transmission data of the broadcasting station.

(7) The information processing device according to any one of (1) to (6), wherein, The predecessor data processing department generates: A program information record table in which program information is recorded in at least any one of two description meta loops of the first description meta loop and the second description meta loop.

(8) The information processing device according to any one of (1) to (7), wherein, The predecessor data processing department generates: A program information record table that records descriptors specified in a selection information table (SIT) specified in the MPEG2-TS format.

(9) The information processing device according to any one of (1) to (8), wherein, Department of data processing In the case where the transmission data sent to the preceding network connection device is an MMT packet string in accordance with the MMT format, Generate a program information record table (MH-SIT) in MMT format.

(10) The information processing device according to any one of (1) to (9), wherein, Department of data processing In the case where the transmission data sent to the preceding network connection device is a TS packet string in accordance with the MPEG2-TS format, Generate a program information record table (SIT) in accordance with the MPEG2-TS format.

(11) The information processing device according to any one of (1) to (10), wherein, Department of data processing The description elements that are the same as those specified in the program information record table (SIT) in the MPEG2-TS format are selected from the control information record table specified in the predecessor MMT format and recorded in the predecessor program information record table.

(12) The information processing device according to any one of (1) to (11), wherein, Department of data processing In the case that the same descriptors as those specified in the program information record table (SIT) of the MPEG2-TS format do not exist in the control information record table specified in the predecessor MMT format, it will be the same as the predecessor program information record table ( SIT) The physical data similar to the description element specified in the description is selected from the control information record table specified in the previous MMT format and recorded in the previous program information record table.

(13) The information processing device according to any one of (1) to (12), wherein, Department of data processing In the storage package of the program information record table, the record can identify that this is the packet identification element of the storage package of the program information record table.

(14) An information processing device including: a data processing section Enter the MMT packet string that stores the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section.

(15) The information processing device according to (14), wherein, The predecessor program information is composed of a plurality of different descriptors. At least a part of the descriptors of the predecessor descriptors are the descriptors specified in the selection information table (SIT) specified in the MPEG2-TS format. The same description element.

(16) An information processing method belongs to an information processing method executed in an information processing device, wherein, The data processing section executes the data processing steps, which input the MMT (MPEG Media Transport) format data and generate the transmission data to be sent to the network connection device; The foreword data processing department is in the foreword data processing step, Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table.

(17) An information processing method belongs to an information processing method executed in an information processing device, wherein, The data processing part inputs the MMT packet string storing MMT (MPEG Media Transport) format data, and obtains the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section.

(18) A program belongs to a program that allows it to perform information processing in an information processing device, where, Instruct the data processing unit to execute the data processing steps, which input the MMT (MPEG Media Transport) format data and generate the transmission data to be sent to the network connection device; The predecessor program is tied to the predecessor data processing steps, Let it obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate the transmission data containing the storage package of the program information record table.

(19) A program belongs to a program that allows it to perform information processing in an information processing device, where, Instruct the data processing unit to input the MMT packet string storing the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; Let it read the program information from the previous program information storage package and display it on the display.

In addition, a series of processing described in the specification can be executed by hardware, software, or a combination of both. In the case of the processing caused by the execution of the software, although the program recorded with the processing procedure is installed and executed in the memory of the computer equipped with the dedicated hardware, it may be executed on a general-purpose computer capable of performing various processing Install the program to run. For example, the program system may be recorded in a recording medium in advance. In addition to installing from a recording medium to a computer, it can also receive programs through networks such as LAN (Local Area Network) and the Internet, and install it on recording media such as a built-in hard disk.

In addition, the various processes described in the specification are not only performed in accordance with the chronological order described, but may also be performed in parallel or individually according to the processing capacity or necessity of the device performing the process. In addition, in this specification, the so-called system is a logical collection structure of plural devices, and the devices of each structure are not limited to those located in the same casing. [Possibility of industrial use]

As described above, according to the configuration of one embodiment of the present disclosure, program information is obtained from the control information record table specified in the MMT format, and an MMT packet string or a TS packet string containing a program information storage packet is generated and sent, so that The possible use of the program information in the destination will be realized. Specifically, for example, a receiving device that receives data from a broadcasting station has a data processing section that inputs MMT format data and generates transmission data to be sent to a network connection device. The data processing unit obtains the program information corresponding to the MMT format data to generate a program information record table, and generates transmission data containing the program information storage package. The data processing department obtains the program information from the control information record table such as the event information table (MH-EIT) specified in the MMT format, and sends the transmission data composed of the MMT packet string or the TS packet string to make the transmission purpose It is possible to use program information in the place. With this configuration, the program information is obtained from the control information record table specified in the MMT format, and the MMT packet string or the TS packet string containing the program information storage packet is generated and transmitted, making it possible to use the program information in the transmission destination Composition will be realized.

11: Broadcasting station (broadcasting server) 12: Broadcast receiver 13: Recording and reproducing device 14:TV 15: Recording and reproducing device 16: Recording and reproducing device 17: portable terminal 20: receiving device 21: Broadcast receiver 22:TV 23: Recording and reproducing device 24: PC 25: portable terminal 30: Network connection device 31:TV 32: Recording and reproducing device 33: PC 34: portable terminal 400: Information processing device 401: Data input section 402: User input section 403: Control Department 404: Memory Department 405: Demultiplexer 406: Data Processing Department 407: Ministry of Communications 411: Subtitle data generation unit 412: Image data generation unit 413: Audio data generation unit 414: Control Information Analysis Department 415: Multiplexer 416: Program Information Record Form Generation Department 431: MMT format data 432: Sending information 601: CPU 602: ROM 603: RAM 604: busbar 605: I/O interface 606: Input section 607: output section 608: Memory Department 609: Ministry of Communications 610: Driver 611: Removable media

[FIG. 1] An explanatory diagram of the transmission processing of the broadcast content through the network. [FIG. 2] An explanatory diagram of a program information transfer process performed when a receiving device receives MPEG2-TS format data. [Fig. 3] An explanatory diagram of the data structure (grammar) of SIT (Select Information Table) generated by a receiving device. [FIG. 4] An explanatory diagram of a specific example of the description element recorded in the SIT (selection information table). [Fig. 5] An explanatory diagram of the outline of the processing executed by the receiving device of the present disclosure. [Fig. 6] An explanatory diagram of the MMT (MPEG Media Transport) format. [Figure 7] An explanatory diagram of control information (SI) contained in MMT format data. [Figure 8] An explanatory diagram of the management information record table transmitted by the broadcasting station. [Figure 9] Descriptors recorded in the SIT (selection information table) of the MPEG2-TS format, descriptors available from the control information in the MMT format, and corresponding data of the processing performed by the receiving device of the present disclosure Illustration. [Figure 10] An illustration of the data structure (grammar) of the MMT package table (MPT) specified in the MMT format. [Figure 11] An illustration of the data structure (grammar) of the event information table (MH-EIT) specified in the MMT format. [Fig. 12] An explanatory diagram of the processing performed by the receiving device of the present disclosure. [FIG. 13] An explanatory diagram of the data structure (grammar) of two program information recording tables (MH-SIT, SIT) generated by the receiving device. [FIG. 14] An explanatory diagram of the acquisition and recording process of the service description element correspondence information. [Figure 15] An explanatory diagram of the acquisition and recording process of the service description element correspondence information. [Fig. 16] An explanatory diagram of the acquisition and recording process of the short-form event description element corresponding information. [FIG. 17] An explanatory diagram of the acquisition and recording process of the extended format event descriptor corresponding information. [Figure 18] An explanatory diagram of the acquisition and recording process of the correspondence information of the event descriptors in the extended format. [FIG. 19] An explanatory diagram of the component description meta-acquisition information acquisition and recording process. [Fig. 20] An explanatory diagram of the component description meta-acquisition information acquisition and recording process. [FIG. 21] An explanatory diagram of a component description element acquisition information acquisition and recording process. [FIG. 22] An explanatory diagram of the component description meta-acquisition information acquisition and recording process. [FIG. 23] An explanatory diagram of acquisition and recording processing of content description element correspondence information. [FIG. 24] An explanatory diagram of the acquisition and recording process of parent-level description meta-correspondence information. [Fig. 25] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [Fig. 26] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [Fig. 27] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [FIG. 28] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [FIG. 29] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [Fig. 30] An explanatory diagram of the acquisition and recording process of the sound component description element correspondence information. [Fig. 31] An explanatory diagram of the acquisition and recording process of information corresponding to data content description elements. [Fig. 32] An explanatory diagram of the acquisition and recording process of information corresponding to data content description elements. [FIG. 33] An explanatory diagram of the process of obtaining and recording the meta description information. [FIG. 34] An explanatory diagram of the acquisition and recording process of event group description element correspondence information. [FIG. 35] An explanatory diagram of the acquisition and recording process of event group description element correspondence information. [FIG. 36] An explanatory diagram of acquisition and recording processing of broadcaster name descriptor meta-correspondence information. [Figure 37] A series of explanatory diagrams describing the acquisition and recording processing of meta-correspondence information. [Figure 38] A series of explanatory diagrams describing the acquisition and recording processing of meta correspondence information. [FIG. 39] An explanatory diagram of the process of acquiring and recording information corresponding to network identification descriptors. [FIG. 40] An explanatory diagram of the process of acquiring and recording information corresponding to network identification descriptors. [FIG. 41] An explanatory diagram of the acquisition and recording process of the corresponding information of the local transmission stream time descriptor. [FIG. 42] An explanatory diagram of the acquisition and recording process of the corresponding information of the local transmission stream time descriptor. [FIG. 43] An explanatory diagram of the acquisition and recording process of the broadcast ID descriptor corresponding information. [Fig. 44] An explanatory diagram of acquisition and recording processing of broadcast ID description element correspondence information. [Fig. 45] A diagram showing an example of a device configuration of an information processing device (receiving device). [Fig. 46] An illustration of a flowchart for explaining a processing procedure of processing executed by an information processing device. [Fig. 47] An explanatory diagram of a hardware configuration example of the information processing device of the present disclosure.

Claims (19)

An information processing device It includes: a data processing unit that inputs MMT (MPEG Media Transport) format data and generates transmission data to be sent to the network connection device; Department of data processing Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table. The information processing device described in claim 1, wherein, Department of data processing Obtain program information from the control information record table specified in the MMT format. The information processing device described in claim 2, wherein, The control information record form prescribed in the previous MMT format is: At least the event information table (MH-EIT), or MMT package table (MMT), or service description table (MH-SDT), or broadcaster information table (MH-BIT), or time offset table (MH-TOT) Any table. The information processing device described in claim 1, wherein, The predecessor data processing department generates: The transmission data is composed of MMT packets in accordance with the MMT format or TS packets in accordance with the MPEG2-TS format. The information processing device described in claim 1, wherein, Department of data processing In the case of generating transmission data composed of TS packets in accordance with the MPEG2-TS format, format conversion is performed to convert the input data, that is, the MMT format data, into the MPEG2-TS format. The information processing device described in claim 1, wherein, The MMT format data input by the predecessor data processing department is the transmission data of the broadcasting station. The information processing device described in claim 1, wherein, The predecessor data processing department generates: A program information record table in which program information is recorded in at least any one of two description meta loops of the first description meta loop and the second description meta loop. The information processing device described in claim 1, wherein, The predecessor data processing department generates: A program information record table that records descriptors specified in a selection information table (SIT) specified in the MPEG2-TS format. The information processing device described in claim 1, wherein, Department of data processing In the case where the transmission data sent to the preceding network connection device is an MMT packet string in accordance with the MMT format, Generate a program information record table (MH-SIT) in MMT format. The information processing device described in claim 1, wherein, Department of data processing In the case where the transmission data sent to the preceding network connection device is a TS packet string in accordance with the MPEG2-TS format, Generate a program information record table (SIT) in accordance with the MPEG2-TS format. The information processing device described in claim 1, wherein, Department of data processing The description elements that are the same as those specified in the program information record table (SIT) in the MPEG2-TS format are selected from the control information record table specified in the predecessor MMT format and recorded in the predecessor program information record table. The information processing device described in claim 1, wherein, Department of data processing In the case that the same descriptors as those specified in the program information record table (SIT) of the MPEG2-TS format do not exist in the control information record table specified in the predecessor MMT format, it will be the same as the predecessor program information record table ( SIT) The physical data similar to the description element specified in the description is selected from the control information record table specified in the previous MMT format and recorded in the previous program information record table. The information processing device described in claim 1, wherein, Department of data processing In the storage package of the program information record table, the record can identify that this is the packet identification element of the storage package of the program information record table. An information processing device including: a data processing section Enter the MMT packet string that stores the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section. The information processing device described in claim 14, wherein, The predecessor program information is composed of a plurality of different descriptors. At least a part of the descriptors of the predecessor descriptors are the descriptors specified in the selection information table (SIT) specified in the MPEG2-TS format. The same description element. An information processing method belongs to an information processing method executed in an information processing device, wherein, The data processing section executes the data processing steps, which input the MMT (MPEG Media Transport) format data and generate the transmission data to be sent to the network connection device; The foreword data processing department is in the foreword data processing step, Obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate transmission data containing the storage package of the program information record table. An information processing method belongs to an information processing method executed in an information processing device, wherein, The data processing part inputs the MMT packet string storing MMT (MPEG Media Transport) format data, and obtains the program information storage packet contained in the MMT packet string; The program information is read from the previous program information storage packet and displayed on the display section. A program belongs to a program that allows it to perform information processing in an information processing device, where, Instruct the data processing department to perform the data processing steps, which is the MMT (MPEG Media Transport) format data is input, and the transmission data to be sent to the network connection device is generated; The predecessor program is tied to the predecessor data processing steps, Let it obtain the program information corresponding to the MMT format data contained in the input data, generate a program information record table, and generate the transmission data containing the storage package of the program information record table. A program belongs to a program that allows it to perform information processing in an information processing device, where, Instruct the data processing unit to input the MMT packet string storing the MMT (MPEG Media Transport) format data, and obtain the program information storage packet contained in the MMT packet string; Let it read the program information from the previous program information storage package and display it on the display.

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