JP5275506B2 - Receiver, program and broadcasting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable detailed information about video content currently in broadcast to be input into the peripheral device of a receiver. <P>SOLUTION: A receiver 20 includes: a broadcast receiving part 21 for receiving,from a broadcast transmitting device 10, video content and BML information including related information related to the content of the video content at a certain clock-time and instruction for causing the related information to be transmitted to peripheral devices; and a related information transmission part 26 for transmitting the related information contained in the BML information according to the instruction contained in the BML information received by the broadcast receiving part 21, and transmitting, to the peripheral devices, the related information contained in an event message when the broadcast receiving part 21 receives the event message. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to a broadcast system including a broadcast transmission device for transmitting broadcast content, a receiver for receiving broadcast content and communication content, and a peripheral device connected to the receiver via a communication network, and the receiver thereof, and It relates to the program of the receiver. This application claims priority based on Japanese Patent Application No. 2011-241597 (filed on November 2, 2011) filed in Japan, the contents of which are incorporated herein by reference.

In recent years, data broadcasting services have been provided in digital television broadcasting, and various information can be displayed on a receiver screen in addition to conventional video content. Information transmitted by data broadcasting is multiplexed on a broadcast wave in a BML (Broadcast Markup Language) format defined in Non-Patent Document 1.
Thereby, the receiver can display information related to the video content currently being broadcast on the screen.

“Data Broadcast Coding and Transmission Standards for Digital Broadcasting”, ARIB STD-B24, 5.4 edition, Japan Radio Industry Association, December 16, 2009

  However, since information transmitted by data broadcasting is displayed on the screen of the receiver, there is a problem in that other viewers who are viewing with the same receiver are obstructed. In addition, since the operation of data broadcasting in the receiver is usually an operation with a television operation remote controller, it is difficult to easily perform input for searching for any related information.

By the way, in recent years, with the spread of the Internet, various information can be examined using a device connected to the Internet. For this reason, there is an increasing demand for information related to the video displayed by the receiver to be checked by the device. In this case, the user searches for information by referring to the web page of the program being broadcast, for example, but since the web page presents static information, the video information at the current time is displayed. It was difficult to know in real time. Moreover, even if information retrieval is performed using the data broadcasting described in Non-Patent Document 1, the information is only displayed on the receiver screen, and the user needs to manually input information to the device while viewing the screen. was there. That is, it is difficult to refer to related information in real time on the peripheral device in synchronization with the program being broadcast.
An object of the present invention is to provide a receiver, a program, and a broadcasting system for inputting detailed information related to video content currently being broadcast to peripheral devices of the receiver.

[1] In order to solve the above-mentioned problem, the receiver according to the present invention provides the video content and related information related to the content of the video content at a certain time from the broadcast transmission apparatus and a command for transmitting the related information to the peripheral device. A broadcast receiving unit that receives the data broadcast content including the event message including the related information, and transmits the related information included in the data broadcast content to the peripheral device in accordance with a command included in the data broadcast content received by the broadcast receiving unit. and when the broadcast receiver receives the event message, and a related information transmitting portion to transmit the related information included in the event message to the peripheral device, the instructions may be defined by ARIB STD-B24 In the startResidentApp () method, specify a constant indicating transmission to the peripheral device as the argument appName , Characterized in that it is obtained by specifying the start information for designating the application of the peripheral device for additional information and the related information as an argument Ex_info.

  [2] The receiver according to [1], further including a display unit configured to display display information generated on the screen based on the data broadcast content received by the broadcast receiving unit, wherein the display unit transmits the related information The display unit continues to display the display information even after the section transmits the related information included in the data broadcast content to the peripheral device.

[3] A program according to the present invention relates a computer to data broadcast content including video content and related information related to the content of the video content at a certain time from a broadcast transmission device and a command to transmit the related information to a peripheral device. A broadcast receiving unit for receiving an event message including information, transmitting related information included in the data broadcast content to a peripheral device according to a command included in the data broadcast content received by the broadcast receiving unit, and the broadcast receiving unit When the event message is received, the related information included in the event message is caused to function as a related information transmitting unit that transmits to the peripheral device, and the command is sent to the startResidentApp () method defined in ARIB STD-B24. Specify a constant indicating transmission to the peripheral device as the argument appName. Characterized in that it is obtained by specifying the start information for designating the application of the peripheral device for additional information and the related information as an argument Ex_info.

[4] A broadcast system according to the present invention is connected to a broadcast transmission device that transmits broadcast content including video content and data broadcast content, a receiver that receives the broadcast content, and the receiver via a communication network. The broadcast transmission apparatus includes the video broadcast content and the related information related to the content of the video content at a certain time, and the data broadcast content including instructions for transmitting the related information to the peripheral device. And a broadcast transmission unit that transmits an event message including the related information at a timing when the related information to be displayed needs to be switched in accordance with the progress of the program represented by the video content. machine, the video content and the data broadcast content and the event main from the broadcast transmitting apparatus A broadcast receiving unit that receives a message, and transmits related information included in the data broadcast content to a peripheral device according to a command included in the data broadcast content received by the broadcast receiving unit, and the broadcast receiving unit receives an event message. A related information transmitting unit that transmits the related information included in the event message to the peripheral device, the peripheral device receiving the related information from the receiver, and a predetermined application. The application execution unit refers to the related information received by the related information receiving unit by the application, and the instruction is used as a peripheral device as an argument appName to the startResidentApp () method defined in ARIB STD-B24. Specify the constant indicating transmission to the related information as the argument Ex_info and the related Characterized in that it is obtained by specifying the start information for designating the application of the peripheral device to reference the multi-address.

  According to the present invention, the receiver receives the data broadcast content from the broadcast transmission device, and transmits related information included in the data broadcast content to the peripheral device in accordance with a command included in the data broadcast content. As a result, related information, which is detailed information regarding the video content currently being broadcast, can be input to the peripheral device of the receiver.

It is a schematic block diagram which shows the structure of the broadcast system by the 1st Embodiment of this invention. It is a sequence diagram which shows the operation example of the broadcast system by the 1st Embodiment of this invention. It is a schematic block diagram which shows the structure of the broadcast system by the 2nd Embodiment of this invention. It is a flowchart which shows the operation example of the receiver by the 2nd Embodiment of this invention in the case of broadcasting the program of a complete package media. It is a figure which shows the example of the URI list | wrist which stores URI which should be transmitted to a peripheral device. It is a flowchart which shows the 1st operation example of the receiver by the 2nd Embodiment of this invention in the case of broadcasting a live broadcast program. It is a flowchart which shows the 2nd operation example of the receiver by the 2nd Embodiment of this invention in the case of broadcasting a live broadcast program.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic block diagram showing the configuration of a broadcasting system according to the first embodiment of the present invention.
The broadcast system is a system including a broadcast transmission device 10, a receiver 20, a peripheral device 30, and a server device 40. The broadcast sending device 10 is owned by the broadcaster, and the receiver 20 and the peripheral device 30 are owned by the user. Examples of the peripheral device 30 include a PC (Personal Computer) and a mobile phone terminal. The receiver 20 and the peripheral device 30 are connected by some communication means such as a wireless LAN (Local Area Network).

  The broadcast transmission device 10 multiplexes TS (Transport Stream) including video content, which is broadcast content, and BML information (data broadcast content), and sequentially transmits the broadcast wave. The video content is multiplexed to the TS as PES (Packetized Elementary Stream) data, and the BML information is multiplexed to the TS as data carousel section data. Note that the BML information includes related information related to the content of the video content at the current time, a command for transmitting the related information to the peripheral device 30, and a command for acquiring receiver instruction information from the peripheral device 30. Note that the command for transmitting the related information to the peripheral device 30 includes activation information that specifies an application of the peripheral device 30 that refers to the related information.

Specifically, a command for transmitting related information to the peripheral device 30 is implemented by a startResidentApp () method defined in ARIB STD-B24. That is, in the startResidentApp () method, “PeripheralApp” that is a constant indicating transmission to the peripheral device 30 is specified as the argument appName, and the startup information and the related information are specified as the argument Ex_info. Configure instructions to be sent.
The instruction to acquire the receiver instruction information from the peripheral device 30 is a script that monitors the occurrence of PeripheralEventOccured which is an interrupt process from the peripheral device 30 and executes the getArrayFromPeripheral () method on condition of the occurrence of the interrupt process. Implemented. Thereby, the receiver instruction information can be acquired as the return value Array [1] of the getArrayFromPeripheral () method.
The mounting described above is merely an example, and the mounting method is not limited to the above.

  Further, the related information included in the BML sent out by the broadcast sending unit 11 is related to the video content reproduced by the receiver, and changes gradually according to the content of the video content that changes over time. Note that the video content may be multiplexed simultaneously with the related information and transmitted to the peripheral device.

The receiver 20 includes a broadcast receiving unit 21, a TS decoding unit 22, a video / audio decoding unit 23, a data broadcast decoding unit 24, a BML browser unit 25, a related information transmitting unit 26, a receiver instruction information receiving unit 27, and a VOD reproducing unit. 28 and a display unit 29 are provided.
The broadcast receiving unit 21 receives broadcast waves sent from the broadcast sending device 10.
The TS decoding unit 22 separates the TS multiplexed on the broadcast wave into PES data and section data, outputs the PES data to the video / audio decoding unit, and outputs the section data to the data broadcast decoding unit.
The video / audio decoding unit 23 decodes the PES data received from the TS decoding unit 22 into video content.
The data broadcast decoding unit 24 decodes BML from the section data received from the TS decoding unit 22.
The BML browser unit 25 reads the BML information decoded by the data broadcast decoding unit 24 and generates display information. Further, the BML browser unit 25 executes a command described in a script included in the BML information.
When the script executed by the BML browser unit 25 includes a command for transmitting the related information to the peripheral device 30, the related information transmission unit 26 indicates activation information indicating the related information and an application that refers to the related information according to the command. Is transmitted to the peripheral device 30.
The receiver instruction information receiving unit 27 receives receiver instruction information that is information related to video content from the peripheral device 30. Here, the receiver instruction information is information that specifies information to be displayed on the receiver, such as a URI (Uniform Resource Identifier) of VOD (Video On Demand) content, for example.
When the receiver instruction information received by the receiver instruction information receiving unit 27 indicates the URI of the VOD content, the VOD reproducing unit 28 reproduces the VOD content indicated by the URI according to the instruction from the BML browser unit 25.
The display unit 29 synthesizes the video content decoded by the video / audio decoding unit 23, the display information generated by the BML browser unit 25, and the VOD content reproduced by the VOD reproduction unit, and displays them on the screen.

The peripheral device 30 includes a related information reception unit 31, an application execution unit 32, and a receiver instruction information transmission unit 33.
The related information receiving unit 31 receives related information and activation information from the receiver 20.
The application execution unit 32 executes the application indicated by the activation information received by the related information receiving unit 31, and refers to the related information received by the related information receiving unit 31 by the application.
When the application execution unit 32 acquires reference information that is information related to the video content currently being broadcast by referring to the related information, the receiver instruction information transmission unit 33 receives the receiver included in the receiver instruction information. The instruction information is transmitted to the receiver 20. Examples of the reference information include a WEB page for video content.

The server device 40 includes a reference information providing unit 41 and a VOD providing unit 42.
The reference information providing unit 41 provides the peripheral device 30 with a WEB page (reference information) including display information to be displayed on the peripheral device 30 and a playback command that is a command to cause the receiver 20 to play back the VOD content related to the display information. provide.
The VOD providing unit 42 provides VOD content to the receiver 20.

Next, the operation of the broadcast system according to the present embodiment will be described.
FIG. 2 is a sequence diagram showing an operation example of the broadcasting system according to the first embodiment of the present invention. In this operation example, the related information is a URI of a WEB page indicating the description of the video content, and a command included in the BML refers to the URI by an HTML (HyperText Markup Language) browser of the peripheral device 30. In this operation example, the receiver instruction information acquired by the peripheral device 30 is the URI of the VOD content related to the video content. Note that this operation example is an example of the operation of the broadcasting system according to the present embodiment, and the contents of related information, commands, and receiver instruction information are not limited to those shown here.

First, the broadcast receiver 21 of the receiver 20 receives a broadcast wave transmitted from the broadcast transmitter 10 (step S1). Next, the TS decoding unit separates the PES data and the section data from the TS multiplexed on the broadcast wave. Next, the data broadcast decoding unit 24 decodes the BML information from the section data separated by the TS decoding unit 22. Next, the BML browser unit 25 reads the script described in the BML information, and sequentially executes the script (step S2). When the script includes a startResidentApp () method in which a PeripheralApp is specified in appName, that is, a PeripheralApp is specified in appName, and a related information URI and startup information indicating an HTML browser are specified in Ex_info (Step S3), the related information transmitting unit 26 transmits the URI specified in Ex_info and the activation information to the peripheral device 30 in accordance with the instruction of the BML browser unit 25 (Step S4). The display unit 29 continues to display the display information generated by the BML browser unit 25 even after the related information transmission unit 26 transmits the URI and the activation information to the peripheral device 30 by the startResidentApp () method. When the user includes a plurality of peripheral devices 30, the related information transmission unit 26 transmits the URI and activation information to the peripheral device 30 by broadcasting. As a result, the URI and activation information are transmitted to all peripheral devices 30 associated in advance with the receiver 20.
The implementation using these methods is merely an example, and implementation using methods other than the methods listed here may be used.

  The related information receiving unit 31 of the peripheral device 30 receives the URI and activation information from the receiver 20 (step S5). Next, the application execution unit 32 activates an HTML browser that is an application indicated by the activation information received by the related information reception unit 31 (step S6). Next, the application execution unit 32 accesses the WEB page provided by the server device 40 by referring to the URI received by the related information reception unit 31 by the activated HTML browser (step S7). As a result, the reference information providing unit 41 of the server device 40 provides the WEB page to the peripheral device 30. Since the broadcast transmission apparatus 10 transmits BML information including a URI that is appropriately different according to the progress of the video content, the peripheral device 30 can access a WEB page indicating detailed information regarding the video content currently being broadcast. .

Here, the WEB page indicates a list of VOD contents related to the currently broadcast video content, and a link URI to the VOD content is associated with each item of the list as receiver instruction information. explain. Each item in the list is associated with a script that is executed upon selection, and that notifies the receiver 20 of the occurrence of an event.
When the user operates the peripheral device 30 and the HTML browser activated by the application execution unit 32 selects one item in the list (step S8), the receiver instruction information transmission unit 33 displays the reference information ( The receiver instruction information (link URI) included in the WEB page is transmitted to the receiver 20 (step S9).

On the other hand, when the BML browser unit 25 of the receiver 20 detects the occurrence of the reception event of the receiver instruction information (PeripheralEventOccured), the BML browser unit 25 executes the command when the interruption occurs (step S10). When the command at the time of the occurrence of an interrupt includes a command for acquiring receiver instruction information from the peripheral device 30, that is, the getArrayFromPeripheral () method, the receiver instruction information receiving unit 27 instructs the BML browser unit 25 to execute an instruction (getArrayFromPeripheral () method). ), The receiver instruction information is acquired from the peripheral device 30 (step S11).
The implementation using these methods is merely an example, and implementation using methods other than the methods listed here may be used.

Next, the BML browser unit 25 analyzes the receiver instruction information acquired as the return value Array [1] of the getArrayFromPeripheral () method (step S12). Next, the receiver 20 executes a process according to the analysis content. For example, if the analysis indicates that the receiver instruction information is a link URI to the VOD content, the VOD playback unit 28 uses the startVOD () method executed by the BML browser unit 25 to acquire the link URI acquired in step S12. Is obtained from the server device 40 (step S13). Specifically, the VOD providing unit 42 of the server device 40 transmits VOD content in response to a request from the receiver 20. Then, the display unit 29 displays the VOD content on the screen. Thereafter, when the receiver 20 finishes the execution of the process according to the analysis content, the processes after step S1 are repeatedly executed.
The implementation using these methods is merely an example, and implementation using methods other than the methods listed here may be used.

  Note that, when the related application is referred to by the application of the peripheral device 30 using startResidentApp (), if the specified application has already been started, the application execution unit 32 has already started without starting a new application. Use the application to browse related information. This makes it possible to provide related information over time without giving a complicated impression to the user.

  As described above, according to the present embodiment, the receiver 20 receives BML information from the broadcast transmission device 10 and transmits related information included in the BML information to the peripheral device 30 in accordance with a command included in the BML information. As a result, related information, which is detailed information regarding the video content currently being broadcast, can be input to the peripheral device 30 of the receiver 20. In addition, according to the present embodiment, the receiver 20 can display video content related to the WEB page on the television only by operating the peripheral device 30 without using the remote controller.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to

  For example, in the present embodiment, the case where the application executed by the peripheral device 30 is an HTML browser has been described, but the present invention is not limited to this. For example, the mail order application may be executed on the peripheral device 30 to display a purchase screen for a product advertised in a CM (Commercial Message) currently being played.

  In the present embodiment, the case where the related information is the URI of the WEB page has been described. However, the present invention is not limited to this. For example, the receiver 20 may transmit a keyword list such as a person appearing in the video content currently being broadcast or a location as the related information. Thereby, the user can perform a search using the keyword as a query based on the keyword list received by the peripheral device 30.

In this embodiment, the case where the receiver instruction information transmission unit 33 transmits the URI of the VOD content as the receiver instruction information has been described. However, the present invention is not limited to this, and other information is transmitted as the receiver instruction information. Also good. For example, a channel selection command may be transmitted as receiver instruction information. In this case, the BML browser unit 25 of the receiver 20 switches the channel through which the broadcast receiving unit 21 receives video content in accordance with the channel selection command received by the receiver instruction information receiving unit 27. Thereby, the display unit reproduces the video content after the channel switching and displays it on the screen.
Thereby, the user can change the channel of the broadcast wave received by the receiver 20 only by operating the peripheral device 30 without using the remote controller.

  In this embodiment, the receiver instruction information transmitting unit 33 of the peripheral device 30 transmits the receiver instruction information included in the WEB page (reference information) obtained by referring to the URI received from the receiver 20. However, the present invention is not limited to this. For example, the application execution unit 32 acquires receiver instruction information from a WEB page (reference information) obtained by referring to a URI specified by the user, and the receiver instruction information transmission unit 33 acquires the receiver instruction information. It may be transmitted to the receiver 20. That is, the peripheral device 30 can independently execute the above-described processing after step S6.

  In the present embodiment, the case has been described in which the BML information includes related information related to the content of the video content at the current time and a command for transmitting the related information to the peripheral device 30, but is not limited thereto. For example, instead of the above information and command, a plurality of related information related to the contents of the video content at a plurality of times and a command for transmitting the related information related to the current time among the related information to the peripheral device 30 are included. It may be.

  In the present embodiment, a command for transmitting related information to the peripheral device 30 and a command for acquiring receiver instruction information from the peripheral device 30 include a startResidentApp () method and a getArrayFromPeripheral () method specified in BML. Although the description has been made using the description, the present invention is not limited to this. In other words, if a method for transmitting activation information and related information to a peripheral device or a method for acquiring information by detecting transmission of information from a peripheral device by an interrupt is defined in BML, the instruction is used using them. May be described.

  The broadcast transmission device 10, the receiver 20, and the peripheral device 30 described above have a computer system inside. The operation of each processing unit described above is stored in a computer-readable recording medium in the form of a program, and the above processing is performed by the computer reading and executing this program. Here, the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

Next, a second embodiment of the present invention will be described.
FIG. 3 is a schematic block diagram showing a configuration of a broadcasting system according to the second embodiment of the present invention. In the broadcasting system according to the second embodiment, the configuration of the receiver 120 is different from the receiver 20 of the first embodiment. Specifically, in the BML browser unit 125 included in the receiver 120, a method for implementing a command for transmitting a URI to the peripheral device 30 and a method for determining the URI are different.

In the present embodiment, a command for transmitting related information to the peripheral device 30, a profile specifying an external device cooperation function profile, data specifying data to be transmitted, and additionalData specifying additional information related to the function are transmittedDataToSmartDevice Implement by () method. When the transmitDataToSmartDevice () method is called, the related information transmission unit 26 transmits data specified by the argument data to the peripheral device 30 when the profile specified by the argument profile indicates related information transmission. The display unit 29 continues to display the display information generated by the BML browser unit 125 even after the related information transmission unit 26 transmits the URI and the activation information to the peripheral device 30 by the transmitDataToSmartDevice () method.

  Note that the type of profile specified in the argument profile is “SmartDeviceMode1”, which is a profile for displaying information on the peripheral device 30 based on the specified URI, or the character string specified in the peripheral device 30 is interpreted, and the application For example, “SmartDeviceMode2” that activates and displays information. When either “SmartDeviceMode1” or “SmartDeviceMode2” is specified in the profile, the related information transmission unit 26 broadcasts information transmission to all peripheral devices 30 linked to the own device.

Next, the operation of the broadcast system according to the present embodiment will be described.
FIG. 4 is a flowchart showing an operation example of the receiver 120 according to the second embodiment of the present invention in the case of broadcasting a complete package media program.

  First, the broadcast receiving unit 21 of the receiver 120 receives a broadcast wave sent from the broadcast sending device 10 (step S101). Next, the TS decoding unit 22 separates the PES data and the section data from the TS multiplexed on the broadcast wave. Next, the data broadcast decoding unit 24 decodes the BML information from the section data separated by the TS decoding unit 22.

FIG. 5 is a diagram illustrating an example of a URI list that stores URIs to be transmitted to the peripheral device 30.
Here, in the present embodiment, it is assumed that the BML information designates a URI list file as reference information. The BML browser unit 125 acquires the URI list file based on the BML information (step S102). The URI list file is data in which an elapsed time from the program start time is associated with a URI to be displayed when the elapsed time has elapsed from the program start time. In the example shown in FIG. 5, http://xxxxxxxxxx.com/01.html is displayed until 3 minutes and 25 seconds have elapsed since the start of broadcasting, and 6 minutes after 3 minutes and 25 seconds have elapsed since the start of broadcasting. Http://xxxxxxxxxx.com/02.html is displayed until 5 minutes and 5 seconds have elapsed, and after 6 minutes and 5 seconds have elapsed since the start of broadcasting, http://xxxxxxxxxx.com/03.html is displayed. The display is defined in the URI list file.

  Next, the BML browser unit 125 reads the script described in the BML information and sequentially executes the script (step S103). When the script includes a command for transmitting a URI to the peripheral device 30, that is, the transmitDataToSmartDevice () method (step S104), the BML browser unit 125 first executes the getProgramRelativeTime () method to execute the relative time from the start of the program. That is, the elapsed time from the program start time is acquired (step S105). Next, the BML browser unit 125 extracts a URI associated with the latest time before the acquired elapsed time from the URI list file (step S106).

  Next, the related information transmission unit 26 transmits the URI extracted in step S106 to the peripheral device 30 according to the instruction of the BML browser unit 125 (step S107). The display unit 29 continues to display the display information generated by the BML browser unit 125 even after the related information transmission unit 26 transmits the URI and the activation information to the peripheral device 30 using the transmitDataToSmartDevice () method.

  Next, the BML browser unit 125 extracts a URI associated with the most recent time after the acquired elapsed time from the URI list file, and calculates a difference time between the elapsed time and the elapsed time acquired in step S105. Next (step S108) Next, the BML browser unit 125 executes the setTimeout () method, and sets a timer that generates an interrupt after the calculated time has elapsed (step S109). Then, the BML browser unit 125 ends the process, and executes the processes in and after step S101 when the interrupt set in step S109 occurs.

  As a result, the receiver 120 can transmit the URI to the peripheral device without delay when broadcasting a complete package media program.

  FIG. 6 is a flowchart illustrating a first operation example of the receiver 120 according to the second embodiment of the present invention when a live broadcast program is broadcast.

  First, the broadcast receiving unit 21 of the receiver 120 receives a broadcast wave sent from the broadcast sending device 10 (step S201). Next, the TS decoding unit separates the PES data and the section data from the TS multiplexed on the broadcast wave. Next, the data broadcast decoding unit 24 decodes the BML information from the section data separated by the TS decoding unit 22.

  Next, the BML browser unit 125 acquires the URI list file based on the BML information (step S202). Note that only one URI is stored in the URI list file associated with the BML information of the live broadcast program.

  Next, the BML browser unit 125 reads the script described in the BML information, and sequentially executes the script (step S203). If the script includes a command for transmitting a URI to the peripheral device 30, that is, the transmitDataToSmartDevice () method (step S204), the BML browser unit 125 extracts the URI stored in the URI list file (step S205). . Since only one URI is stored in the URI list file of a program that is not a complete package medium, in this operation example, the elapsed time from the program start time is not acquired. Similarly to the case, the elapsed time from the program start time may be acquired.

  Next, the related information transmission unit 26 transmits the URI extracted in step S205 to the peripheral device 30 according to the instruction of the BML browser unit 125 (step S206). The display unit 29 continues to display the display information generated by the BML browser unit 125 even after the related information transmission unit 26 transmits the URI and the activation information to the peripheral device 30 using the transmitDataToSmartDevice () method.

  In a program that is not a complete package medium, only one URI is stored in the URI list file. This is because, in a program that is not a complete package medium, even if the next URI to be transmitted to the peripheral device 30 is determined, the time to transmit the URI cannot be determined. Therefore, the receiver 120 does not execute the timer setting by the setTimeout () method. Therefore, when it is time to transmit the next URI in the program, the program provider rewrites the URI stored in the URI list file with a new URI, and updates the URI list file to the receiver 120. Generate an interrupt. When a URI list file update interrupt occurs, the receiver 120 executes the processing from step S201 onward. As a result, the receiver 120 can transmit the URI to the peripheral device 30 in real time even when a program that is not a complete package medium is broadcast.

  The URI list file update interrupt is generated only when the update is detected after the URI list file is updated. Therefore, the URI time is updated and the URI is transmitted to the peripheral device 30. A blank time may occur between the two times. Therefore, when it is necessary to update the URI in real time, processing according to the second operation example shown below is performed.

  FIG. 7 is a flowchart showing a second operation example of the receiver 120 according to the second embodiment of the present invention in the case of broadcasting a live broadcast program. In the second operation example, the receiver 120 receives the event message storing the URI, and transmits the URI to the peripheral device.

  First, the broadcast receiving unit 21 of the receiver 120 receives a broadcast wave sent from the broadcast sending device 10 (step S301). Next, the TS decoding unit 22 separates the PES data and the section data from the TS multiplexed on the broadcast wave. Here, when the TS decoding unit 22 determines that the event message is included in the section data, the TS decoding unit 22 accepts an event message interrupt (step S302). In the present embodiment, an event message is transmitted at a timing at which switching of the URI to be displayed is necessary according to the progress of the program. The private data of the event message stores a URI that should be presented to the peripheral device 30 at the timing. Next, the data broadcast decoding unit 24 decodes the event message and reads out the URI stored in the private data of the event message (step S303). Next, the related information transmission unit 26 transmits the URI read by the data broadcast decoding unit 24 to the peripheral device 30 (step S304).

  Accordingly, the receiver 120 can transmit a URI corresponding to the content of the program to the peripheral device in real time even when broadcasting a program that is not a complete package medium such as a live broadcast. In broadcasting a program that is not a complete package medium, it is preferable that the first operation example and the second operation example described above are used in combination. That is, first, as shown in the second operation example, it is possible to change the URI for the user who is viewing by the event message, and then update the URI list file to stop the transmission of the event message.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to

  The above-described receiver 120 has a computer system inside. The operation of each processing unit described above is stored in a computer-readable recording medium in the form of a program, and the above processing is performed by the computer reading and executing this program. Here, the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  DESCRIPTION OF SYMBOLS 10 ... Broadcast transmission apparatus 11 ... Broadcast transmission part 20,120 ... Receiver 21 ... Broadcast reception part 22 ... TS decoding part 23 ... Video / audio decoding part 24 ... Data broadcast decoding part 25, 125 ... BML browser part 26 ... Related information Transmission unit 27 ... Receiver instruction information reception unit 28 ... VOD reproduction unit 29 ... Display unit 30 ... Peripheral device 31 ... Related information reception unit 32 ... Application execution unit 33 ... Receiver instruction information transmission unit 40 ... Server device 41 ... Reference information Providing part 42 ... VOD providing part

Claims (4)

A broadcast receiving unit that receives video content, related information related to the content of the video content at a certain time, and data broadcast content including an instruction to transmit the related information to a peripheral device and an event message including the related information from the broadcast transmission device When,
And sends the relevant information included in the data broadcast content in accordance with instructions the broadcast receiving unit are included in the data broadcast content received in the peripheral device, also when the broadcast receiving unit receives the event message, in the event message A related information transmitting unit for transmitting the related information contained in the peripheral device ,
The instruction designates a constant indicating transmission to a peripheral device as an argument appName in the startResidentApp () method defined in ARIB STD-B24, and relates to the related information and the related information referring to the related information as an argument Ex_info. A receiver characterized by designating activation information for designating an application . A display unit for displaying on the screen display information generated based on the data broadcast content received by the broadcast receiving unit;
2. The receiver according to claim 1, wherein the display unit continues displaying the display information even after the related information transmission unit transmits the related information included in the data broadcast content to a peripheral device. . Computer
A broadcast receiving unit that receives video content, related information related to the content of the video content at a certain time, and data broadcast content including an instruction to transmit the related information to a peripheral device and an event message including the related information from the broadcast transmission device ,
And sends the relevant information included in the data broadcast content in accordance with instructions the broadcast receiving unit are included in the data broadcast content received in the peripheral device, also when the broadcast receiving unit receives the event message, in the event message It functions as a related information transmitter that transmits the related information contained in the peripheral device ,
The instruction designates a constant indicating transmission to a peripheral device as an argument appName in the startResidentApp () method defined in ARIB STD-B24, and relates to the related information and the related information referring to the related information as an argument Ex_info. Specifies the startup information that specifies the application.
A program characterized by that . A broadcast system comprising: a broadcast transmission device that transmits broadcast content including video content and data broadcast content; a receiver that receives the broadcast content; and a peripheral device connected to the receiver via a communication network. And
The broadcast sending device is
In accordance with the progress of the program represented by the video content, the video content and the related information related to the content of the video content at a certain time and the data broadcast content including a command for transmitting the related information to the peripheral device are sequentially transmitted. A broadcast transmission unit that transmits an event message including the related information at a timing when the related information to be displayed needs to be switched,
The receiver
A broadcast receiving unit that receives the video content and the data broadcast content and the event message from the broadcast transmitting apparatus,
The related information included in the data broadcast content is transmitted to the peripheral device according to the instruction included in the data broadcast content received by the broadcast receiving unit, and is included in the event message when the broadcast receiving unit receives the event message. A related information transmitting unit that transmits related information to a peripheral device,
The peripheral device is
A related information receiving unit for receiving the related information from the receiver;
An application execution unit that executes a predetermined application and refers to the related information received by the related information reception unit by the application,
The instruction designates a constant indicating transmission to a peripheral device as an argument appName in the startResidentApp () method defined in ARIB STD-B24, and relates to the related information and the related information referring to the related information as an argument Ex_info. A broadcast system characterized by specifying startup information for specifying an application .

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