WO2012102133A1 - 受信装置、受信方法、供給装置、供給方法、プログラム、および放送システム - Google Patents
受信装置、受信方法、供給装置、供給方法、プログラム、および放送システム Download PDFInfo
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- WO2012102133A1 WO2012102133A1 PCT/JP2012/050835 JP2012050835W WO2012102133A1 WO 2012102133 A1 WO2012102133 A1 WO 2012102133A1 JP 2012050835 W JP2012050835 W JP 2012050835W WO 2012102133 A1 WO2012102133 A1 WO 2012102133A1
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- command
- application
- receiving device
- broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/654—Transmission by server directed to the client
- H04N21/6543—Transmission by server directed to the client for forcing some client operations, e.g. recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4112—Peripherals receiving signals from specially adapted client devices having fewer capabilities than the client, e.g. thin client having less processing power or no tuning capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/654—Transmission by server directed to the client
- H04N21/6547—Transmission by server directed to the client comprising parameters, e.g. for client setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
Definitions
- the present disclosure relates to a reception device, a reception method, a supply device, a supply method, a program, and a broadcast system, and in particular, reception in which operation of a predetermined application program can be controlled in conjunction with the progress of a digital television broadcast program.
- the present invention relates to a device, a receiving method, a supplying device, a supplying method, a program, and a broadcasting system.
- the present disclosure has been made in view of such a situation, and makes it possible to control the operation of an external device connected to a receiving device in conjunction with the progress of a program being received.
- a receiving device includes a receiving device that receives content broadcast via a broadcasting network, a receiving unit that receives a broadcast signal broadcast via the broadcasting network, and a receiving device body Alternatively, command information including command application device information that specifies at least one of external devices that can be connected to the reception device and commands related to a predetermined application program that is linked to the progress of the content is acquired from the received broadcast signal.
- command information acquisition unit that performs processing related to the predetermined application program in response to the command information, and executes processing related to the predetermined application program in response to the command information to the external device And an external device control unit.
- the command application device information can specify at least one of a plurality of types of external devices that can be connected to the reception device body or the reception device.
- the command information analysis unit executes processing related to the predetermined application program in response to the command when the receiving device main body is specified by the command application device information, and the external device control unit When the external device is designated by the applied device information, an external device command for causing the designated external device to execute processing related to the predetermined application program can be generated.
- the receiving apparatus may further include an application control descriptor acquisition unit that acquires an application control descriptor in which an application control type is described from the received broadcast signal.
- the command information acquisition unit can acquire the command information from the broadcast signal according to the application control type of the acquired application control descriptor.
- the receiving device When the command information is not acquired from the broadcast signal according to the application control type of the acquired application control descriptor, the receiving device according to the first aspect of the present disclosure is configured to perform the predetermined control according to the application control descriptor.
- An application control descriptor analysis unit that executes processing related to the application program can be further included.
- the command information may include a command for obtaining, starting, event firing, interruption, or termination of a predetermined application program.
- a reception method is a reception method of a reception device that receives content broadcast via a broadcast network, and receives a broadcast signal broadcast via the broadcast network by the reception device.
- Command information including a receiving step, command application device information that specifies at least one of a receiving device main body or an external device that can be connected to the receiving device, and a command related to a predetermined application program that is linked to the progress of the content,
- a command information obtaining step for obtaining from the received broadcast signal; a command information analyzing step for executing processing relating to the predetermined application program in response to the command information; and the predetermined application program in correspondence with the command information.
- Process on the external device Thereby and an external device control step.
- a program includes a computer that receives content broadcast via a broadcast network, a reception unit that receives a broadcast signal broadcast via the broadcast network, and a receiver main body or the A command for acquiring command information including command application device information for designating at least one of external devices that can be connected to the receiving device and a command related to a predetermined application program linked to the progress of the content from the received broadcast signal
- An information acquisition unit a command information analysis unit that executes processing related to the predetermined application program in response to the command information
- an external that causes the external device to execute processing related to the predetermined application program in response to the command information It functions as a device control unit.
- command application device information for specifying at least one of a reception device main body or an external device that can be connected to the reception device, which receives a broadcast signal broadcast via a broadcast network, Command information including a command related to a predetermined application program to be linked to the progress is acquired from the received broadcast signal, processing related to the predetermined application program is executed corresponding to the command information, and predetermined information corresponding to the command information is executed.
- Command information including a command related to a predetermined application program to be linked to the progress is acquired from the received broadcast signal, processing related to the predetermined application program is executed corresponding to the command information, and predetermined information corresponding to the command information is executed.
- a supply device is a supply device that supplies content to a receiving device via a broadcast network, and applies a command that specifies at least one of the receiving device main body or an external device that can be connected to the receiving device.
- a broadcast unit that broadcasts a broadcast signal including the content via the broadcast network, and command information including device information and a command related to a predetermined application program linked to the progress of the content.
- the command application device information can specify at least one of a plurality of types of external devices that can be connected to the reception device body or the reception device.
- the broadcast unit can broadcast the broadcast signal including an application control descriptor in which an application control type is described via the broadcast network, and the reception device receives the application control descriptor in the received application control descriptor.
- the command information is acquired from the broadcast signal according to the application control type.
- the command information may include a command for obtaining, starting, event firing, interruption, or termination of a predetermined application program.
- a supply method is a supply method of a supply device that supplies content to a reception device via a broadcast network.
- the supply device includes a reception device body or an external device that can be connected to the reception device.
- a broadcast step of broadcasting command information including command application apparatus information specifying at least one, a command related to a predetermined application program linked to the progress of the content, and a broadcast signal including the content via the broadcast network; .
- the program according to the second aspect of the present disclosure is a command application device information that specifies at least one of a reception device main body or an external device that can be connected to the reception device to a computer that supplies content to the reception device via a broadcast network. And command information including a command related to a predetermined application program linked to the progress of the content, and a broadcast unit that broadcasts a broadcast signal including the content via the broadcast network.
- a command including command application device information that specifies at least one of a receiving device main body or an external device that can be connected to the receiving device, and a command related to a predetermined application program that is linked to the progress of content Broadcast signals including information and contents are broadcast via a broadcast network.
- a program according to a third aspect of the present disclosure is a broadcasting system that supplies content from a supply device to a reception device via a broadcast network, wherein the supply device is at least a reception device main body or an external device that can be connected to the reception device.
- command application device information specifying one, command information including a command related to a predetermined application program linked to the progress of the content, and a broadcast unit that broadcasts a broadcast signal including the content via the broadcast network,
- a receiving device that receives the broadcast signal broadcast via the broadcast network, a command information acquisition unit that acquires the command information from the received broadcast signal, and the command information corresponding to the command information
- a command information analysis unit for executing processing relating to a predetermined application program; In response to de information and an external device control section for executing an operation related to the predetermined application program to the external device.
- command supply device information for designating at least one of the reception device main body or an external device that can be connected to the reception device by the supply device, and a command related to a predetermined application program linked to the progress of the content
- the command information including the content and the broadcast signal including the content are broadcast via the broadcast network.
- the reception device receives a broadcast signal broadcast via the broadcast network, acquires command information from the received broadcast signal, executes processing related to a predetermined application program in response to the command information, and receives the command information.
- the external device is caused to execute processing related to a predetermined application program.
- the operation of the connected external device can be controlled in conjunction with the progress of the content.
- an external device connected to the receiving device can be operated in conjunction with the progress of content.
- an external device connected to the receiving device can be operated in conjunction with the progress of content.
- FIG. It is a block diagram showing an example of composition of a broadcasting system of this indication. It is a figure which shows the outline
- FIG. It is a figure which shows the outline
- FIG. It is a figure which shows the outline
- FIG. It is a block diagram which shows the structural example of a receiver. It is a figure which shows the functional block contained in the analysis part of a receiver. It is a block diagram which shows the structural example of an external device. It is a figure which shows an example of the syntax of an application control descriptor. It is a figure which shows the information item of command information.
- command information syntax An example of command information syntax is shown. It is a figure which shows arrangement
- FIG. 1 shows a broadcasting system according to an embodiment.
- the broadcasting system 10 includes a broadcasting device 21 and a server 22 provided on the broadcasting side, and a receiving device 30 and an external device 40 provided on the receiver side, respectively.
- this broadcasting system 10 is a new one that updates and displays information related to a program or CM being received, for example, in conjunction with its progress.
- a new service (hereinafter referred to as a new information service).
- the new information service is realized by executing an application program supplied from the server 22 in the receiving device 30 or the external device 40.
- the broadcasting device 21 broadcasts a digital broadcast signal via a broadcasting network 2 such as a terrestrial digital broadcasting network, a satellite broadcasting network, or a cable television network.
- This digital broadcast signal includes video, audio, caption, and other signals constituting a program, and a signal for a data broadcast service.
- the predetermined position of the digital broadcast signal includes an application control descriptor and command information for controlling the receiving device 30. Note that application control descriptors and command information having the same contents are repeatedly broadcast for a predetermined period.
- the application control descriptor is broadcast by being included in an SDT (service description table) included in a digital broadcast signal when a new information service is executed on a service (so-called channel) basis.
- SDT service description table
- EIT event information table
- the application control descriptor may be included in a program PMT (program map map) and broadcast.
- the command information is, for example, described in a predetermined position of the video stream of the program, or encoded and embedded in the video of the program, and is repeatedly broadcast for a predetermined period.
- the server 22 In response to a request from the receiving device 30, the server 22 sends an application program for realizing a new information service in the receiving device 30 (hereinafter abbreviated as a new information service application) to the receiving device 30 via the Internet 3. Supply. In response to a request from the external device 40, the server 22 supplies a new information service application for realizing a new information service in the external device 40 to the external device 40 via the Internet 3.
- a new information service application for realizing a new information service in the external device 40 to the external device 40 via the Internet 3.
- the server 22 receives application control data necessary for controlling the acquisition, activation, event firing, interruption, or termination operation of the new information service application in the receiving device 30.
- the data is supplied to the receiving device 30 via the Internet 3.
- the receiving device 30 receives a digital broadcast signal broadcast from the broadcasting device 21 via the broadcast network 2, and outputs a program or CM video and audio to a monitor (not shown) at the subsequent stage based on the received digital broadcast signal. To do.
- the receiving device 30 executes the new information service application acquired from the server 22 to synthesize and display the video of the new information service on the video of the program or CM.
- the receiving device 30 can be connected to the external device 40 via a predetermined interface.
- the receiving device 30 can identify the type (described later) of the connected external device 40.
- the connection between the receiving device 30 and the external device 40 may be a wireless connection using a wireless LAN, Bluetooth (registered trademark), infrared, or the like, or a wired connection via a wired LAN, USB, HDMI, or the like.
- the receiving device 30 may be configured as a single unit, or may be built in, for example, a digital television receiver or a video recorder.
- the external device 40 provides a new information service to the user by performing operations such as acquiring and starting a new information service application from the server 22 in accordance with a command from the receiving device 30.
- Examples of the external device 40 include a smartphone, a portable information terminal, a digital television receiver, and a video recorder.
- smart phones and personal digital assistants as the external device 40 are classified as external device type 1 in which Android (trademark) is used as a platform, external device type 2 in which iOS (trademark) is used, etc. can do.
- FIG. 2 shows a case where the application control type (application_control_type in FIG. 8) described in the application control descriptor is 1.
- the receiving device 30 acquires a new information service application (App) from the server 22 based on the application control descriptor included in the digital broadcast signal.
- the external device 40 acquires a new information service application from the server 22 in accordance with the command generated by the receiving device 30 based on the application control descriptor.
- FIG. 3 shows a case where the application control type described in the application control descriptor is 2.
- the receiving device 30 acquires a new information service application from the server 22 based on the command information included in the digital broadcast signal.
- the external device 40 acquires a new information service application from the server 22 in accordance with the command from the receiving device 30 generated by the receiving device 30 based on the command information.
- FIG. 4 shows a case where the application control type described in the application control descriptor is 3.
- the receiving device 30 acquires application control data from the server 22 based on the application control descriptor included in the digital broadcast signal. Furthermore, the receiving device 30 acquires a new information service application from the server 22 based on the application control data.
- the application control data acquired from the server 22 can include metadata (such as caption data corresponding to a program) in addition to commands related to operations such as acquisition of new information service applications and orbits.
- the external device 40 acquires a new information service application from the server 22 according to the command generated by the receiving device 30 based on the application control data.
- the application control data can be supplied to the receiving device 30 through a route different from the digital broadcast signal.
- FIG. 5 shows a configuration example of the receiving device 30.
- the receiving device 30 includes a tuner 61, a demultiplexing unit 62, an audio decoder 63, an audio output unit 64, a video decoder 65, an analysis unit 66, a video output unit 67, a control unit 68, a memory 69, an operation unit 70, and a communication I / F 72.
- the tuner 61 receives and demodulates a digital broadcast signal corresponding to the service (channel) selected by the user, and outputs a TS (transport stream) obtained as a result to the demultiplexing unit 62.
- the demultiplexing unit 62 separates the TS input from the tuner 61 into an audio encoded signal and a video encoded signal, the audio encoded signal to the audio decoder 63, and the video encoded signal to the video decoder 65 and the analyzing unit 66. Output to. Further, the demultiplexing unit 62 separates the control signal including SDT and EIT that may include the application control descriptor from the TS and outputs the control signal to the analysis unit 66.
- the audio decoder 63 decodes the input audio encoded signal and outputs the resulting audio signal to the audio output unit 64.
- the audio output unit 64 outputs the input audio signal to a subsequent stage (for example, a speaker).
- the video decoder 65 decodes the input video encoded signal and outputs the resulting video signal to the analysis unit 66 and the video output unit 67.
- the analysis unit 66 detects and analyzes the application control descriptor included in the SDT and EIT input from the demultiplexing unit 62, executes processing according to the analysis result, and notifies the control unit 68 of the analysis result. To do.
- the analysis unit 66 detects the command information included in the video encoded signal input from the demultiplexing unit 62 or the command information encoded and embedded in the video signal input from the video decoder 65. It detects and analyzes, performs the process according to an analysis result, and notifies the control part 68 of an analysis result.
- the analysis unit 66 generates a command for the external device 40 according to the analysis result and outputs it to the external I / F 76. Further, the analysis unit 66 acquires application control data from the server 22 via the communication I / F 72 and the Internet 3.
- FIG. 6 shows functional blocks included in the analysis unit 66.
- the analysis unit 66 includes a reception monitoring unit 81, an application control descriptor acquisition unit 82, an application control descriptor analysis unit 83, a command information detection unit 84, a command information analysis unit 85, an external device command generation unit 86, and application control data acquisition.
- a unit 87, a segment data sequence holding unit 88, and a segment data analysis unit 89 are included.
- the reception monitoring unit 81 monitors the start and end of a program in the service being received or the service (channel) being changed by channel selection.
- the application control descriptor acquisition unit 82 holds the SDT and EIT input from the demultiplexing unit 62, and acquires the application control descriptor from the SDT and EIT.
- the application control descriptor analysis unit 83 analyzes the application control descriptor corresponding to the selected service or program.
- the command information detecting unit 84 detects command information included in the video encoded signal input from the demultiplexing unit 62 or is encoded and embedded in the video signal input from the video decoder 65. Detect information.
- the command information analysis unit 85 analyzes the detected command information.
- the external device command generation unit 86 generates a command for the external device 40 based on the application control descriptor, command information, or segment data analysis result.
- the application control data acquisition unit 87 acquires application control data from the server 22 based on the analysis result of the application control descriptor corresponding to the selected service or program.
- the segment data holding unit 88 holds a segment data sequence constituting the acquired application control data.
- the segment data analysis unit 89 analyzes each segment data constituting the segment data sequence.
- the video output unit 67 outputs the video signal input from the video decoder 65 to a subsequent stage (for example, a display).
- the video output unit 67 combines the video of the new information service input from the application engine 74 and the video signal input from the video decoder 65 and outputs the resultant to the subsequent stage.
- the control unit 68 controls the entire receiving device 30 by executing a control program recorded in the memory 69. Further, the control unit 68 controls acquisition (registration), activation, event firing, interruption, termination, and the like of the new information service application based on the analysis result from the analysis unit 66.
- control program executed by the control unit 68 is recorded.
- This control program can be updated based on digital broadcast signals or update data supplied via the Internet 3.
- the operation unit 70 receives various operations from the user and notifies the control unit 68 of operation signals corresponding thereto.
- the memory 69 holds user profile information such as the user's age, sex, and address that has been input in advance by the user.
- This profile information is referred to by, for example, a new information service application that is being executed, and is used for a purpose such as firing an event in the new information service application that is being executed only when the user's profile information satisfies a predetermined condition. it can.
- the communication I / F 72 is connected to the server 22 via the Internet 3 in accordance with control from the analysis unit 66 or the application engine 74.
- the application engine 74 acquires a new information service application from the server 22 via the communication I / F 72 and the Internet 3 according to the control from the control unit 68 and stores the new information service application in the cache memory 73.
- the application engine 74 reads and executes the new information service application held in the cache memory 73 in accordance with the control from the control unit 68.
- the application memory 75 has a work memory 75A and a save memory 75B.
- the application engine 74 records data on the new information service application being executed in the work memory 75A. Further, the application engine 74 moves the data in the work memory 75A of the application memory 75 to the save memory 75B when the new information service application being executed is interrupted. When the interrupted new information service application is resumed, the data in the save memory 75B is moved to the work memory 75A to restore the state before the interruption.
- one of the two areas of the same size in the application memory 75 may be alternately switched as the work memory 75A and the other as the save memory 75B. As a result, data movement between the work memory 75A and the save memory 75B can be eliminated.
- the external I / F 76 establishes a connection with the external device 40 by wireless or wired, identifies the type of the external device 40, and notifies the analysis unit 66 of the identification result. Further, the external I / F 76 transmits a command for the external device 40 input from the analysis unit 66 to the external device 40.
- FIG. 7 shows a configuration example of the external device 40. However, FIG. 7 shows only parts related to the execution of the new information service application, and parts not related to the execution of the new information service application are omitted as appropriate.
- the external device 40 includes an external I / F 91, a command analysis unit 92, a control unit 93, an operation unit 94, a memory 95, an application engine 96, a communication I / F 97, and an output unit 98.
- the external I / F 91 is connected to the external I / F 76 of the receiving device 30 by wireless or wired, and outputs a command from the receiving device 30 to the command analysis unit 92.
- the command analysis unit 92 analyzes the command from the receiving device 30 and outputs the analysis result to the control unit 93.
- the control unit 93 controls the entire external device 40 by executing a control program (for example, Android, iOS, etc. as a platform) recorded in the memory 65.
- the control unit 93 controls acquisition (registration), activation, event firing, interruption, termination, and the like of the new information service application based on the analysis result from the command analysis unit 92.
- control program executed by the control unit 93 is recorded.
- the operation unit 94 receives various operations from the user and notifies the control unit 93 of operation signals corresponding thereto.
- the application engine 96 acquires and executes a new information service application from the server 22 via the communication I / F 97 and the Internet 3 according to the control from the control unit 93, and obtains the execution result.
- a video signal or audio signal of information related to the program is output to the output unit 98.
- the communication I / F 97 is connected to the server 22 via the Internet 3 in accordance with control from the application engine 96.
- the output unit 98 displays video corresponding to the video signal input from the application engine 96, and outputs audio corresponding to the audio signal.
- FIG. 8 shows an example of the syntax of the application control descriptor.
- descriptor_tag indicating the corresponding service (channel) or program
- descriptor_length indicating the data length of the application control descriptor
- application_control_type indicating the application control type
- descriptor_device_type for specifying a device (descriptor application device) that performs operations such as acquisition and execution of a new information service application based on the application control descriptor is described.
- an external device in addition to the receiving device main body that has received the application control descriptor, an external device can be specified by distinguishing its type. Further, for example, the external device type 1 and the external device type 2 are simultaneously designated as descriptor application devices, or the reception device main body and the external device type 2 are designated simultaneously as descriptor application devices. It is also possible to specify a combination of each type of device.
- the application control descriptor includes application_id for specifying the new information service application to be acquired, app_url_length indicating the data length of the URL for specifying the acquisition destination (server 22) of the new information service application, and the URL App_url_byte indicating is described.
- app_type indicating the type of the new information service application (for example, HTML5, BML, Java (registered trademark), etc.)
- operation of the new information service application when the channel or program is changed An app_life_scope indicating the range and an app_expire_date indicating the expiration date of the new information service application are described.
- app_control_data_url_length indicating the data length of the URL for specifying the application control data acquisition destination (server 22)
- app_control_data_url_byte indicating the URL
- FIG. 9 shows information items included in the command information
- FIG. 10 shows an example of the syntax of the command information.
- the command ID is identification information of the command information.
- the provider ID is information indicating a provider that provides the user with the new information service application.
- the command application device type indicates a device (command application device) that controls operations related to the new information service application based on the command information.
- a device command application device
- an external device can be specified by distinguishing its type. Further, for example, the external device type 1 and the external device type 2 are simultaneously designated as command devices, and the reception device main body and the external device type 2 are simultaneously designated as command application devices. It is also possible to specify a combination of types.
- command_code indicates the type of the command information, specifically, acquisition (registration), activation, termination, event, or interruption of the new information service application.
- the command validity probability parameter (command_validity) is a probability when each receiving device 30 that has received the command information determines to execute processing according to the command information in order to distribute access to the server 22 from a plurality of receiving devices 30. Indicates the value N for specifying.
- the effective probability parameter N in the second command information may be set to 3
- the effective probability parameter N in the third command information may be set to 2
- the effective probability parameter N in the fourth command information may be set to 1.
- command validity probability In the case of command information that does not access the server 22 or the like (command code is interrupted, terminated, etc. of the new information service application), the command validity probability should always be set to 1.
- Application ID is identification information of a new information service application corresponding to the command information.
- the application URL is the URL of the acquisition destination of the new information service application (in this case, the server 22).
- Application type is information indicating the type (for example, HTML5, BML, Java (registered trademark), etc.) of the new information service application corresponding to the command information.
- the application valid range indicates a range in which the operation of the new information service application being executed continues when the channel or program is changed.
- the application expiration date indicates a period during which the acquired new information service application can be activated (expiration date and time when the acquired new information service application is deleted).
- Event ID is event identification information when the command code of the command information is an event.
- the event additional information is data that is injected into the new information service application when the event is fired.
- 11 to 13 show the arrangement of command information in a digital broadcast signal.
- the command information is broadcasted by being placed in extensions_and_user_data in the MPEG2 video stream corresponding to the video of the program.
- the command information is encoded and embedded in the video of the program for broadcasting.
- FIG. 7A shows an example in which command information is converted into a two-dimensional bar code and superimposed on a predetermined position on the video (in this case, the lower right corner).
- FIG. 5B shows an example in which command information is converted into video code and combined into several lines at the bottom of the video.
- the command information combined with the video is detected by the analysis unit 66 of the receiving device 30.
- the command information is arranged on the video of the program. For example, even when a television program is redistributed using the CATV network, The command information can be transmitted to the receiving device 30 without being deleted.
- the command information on the video can be visually recognized by the user of the receiving device 30, but if this is not desirable, a two-dimensional barcode or video code corresponding to the command information May be displayed after being masked with the same pixels as the surrounding pixels.
- command information in a digital broadcast signal is not limited to the examples shown in FIGS.
- FIG. 14 shows the structure of application control data.
- the application control data includes a segment data sequence composed of a plurality of segment data, as shown in FIG.
- the segment data is composed of start_pts and end_pts indicating two points on the progress time axis of the corresponding program as the segment valid period, and command data.
- the segment data is composed of a segment valid period and metadata, as shown in FIG. That is, the segment data includes either command data or metadata, and segment data including command data and segment data including metadata are mixed in one application control data (segment data sequence). be able to.
- 15 to 20 show detailed examples of the data structure of the segment data data sequence.
- the data structure is assumed to be expressed in XML. Items with @ indicate attributes associated with the upper element, and other items indicate elements.
- FIG. 15 shows the data structure of the segment data sequence.
- segment_sequence for each segment data, @segment_number indicating the number, start_pts indicating the PTS value at the start timing of the segment valid period, and end_pts indicating the PTS value at the end timing of the segment valid period are described Is done.
- PTS value a counter value of a 90 KHz clock embedded in a video stream or an audio stream can be used, but an absolute time indicated in hours, minutes and seconds or a relative time from the start of a program may be used. Further, command data or metadata is described.
- 16 and 17 show the structure of command data in the segment data.
- @Destination indicates a device (command application device) that controls operations related to the new information service application based on the command data.
- the command application device in addition to the receiving device main body that has received the command information, an external device can be specified by distinguishing its type. Further, for example, the external device type 1 and the external device type 2 are simultaneously designated as command devices, or the receiving device main body and the external device type 2 are simultaneously designated as command application devices. It is also possible to specify a combination of types.
- @action indicates the type of the command data, specifically, acquisition, activation, termination, event, or interruption of the new information service application.
- “Diffusion” is information for distributing the application timing of the command data, like the command validity probability parameter in the command information.
- diffusion is information for distributing the application timing of the command data, like the command validity probability parameter in the command information.
- rate indicates the number of distributions
- range indicating the maximum delay time
- @period indicating the command application diffusion period
- event is information related to an event that is fired by the new information service application being executed.
- Event identification information, @id, and @related_data indicating data injected into the new information service application when the event is fired Described.
- FIG. 18 shows a metadata structure in the segment data.
- @Type indicates the metadata type. Examples of metadata types include application data (application_data), text subtitle data (caption), bitmap subtitle data (subtitle), and the like. @target describes the identification information of the new information service application corresponding to the metadata. Thereafter, information for each type of metadata is described.
- FIG. 19 shows a structure when the metadata type is bitmap subtitle data.
- bitmap subtitle data @id indicating the subtitle sequence number, @left indicating the left end position of the subtitle display area, @upper indicating the upper end position of the subtitle display area, @right indicating the right end position of the subtitle display area, the lower end position of the subtitle display area @Lower indicating, and bitmap which is bitmap data corresponding to the character string of the subtitle is included.
- FIG. 20 shows a structure when the metadata type is text subtitle data.
- For text subtitle data @id indicating the subtitle sequence number, @color specifying the subtitle color, @region_left indicating the subtitle display start horizontal position, @region_upper indicating the subtitle display start vertical position, and @ indicating the subtitle character size size, @font indicating the subtitle character font, and text that is the subtitle character string are included.
- FIG. 21 shows an example of the syntax of the segment data sequence.
- the segment data sequence is composed of three segment data.
- the segment data of segment number 1 is command data with a segment validity period of 12000 to 15000
- the command application device is the receiving device body
- the command type is activation.
- the segment data of segment number 2 is command data with a segment validity period of 13000 to 13100
- the command application device is the receiving device body
- the command type is the event.
- the segment data of segment number 3 is metadata with a segment validity period of 12000 to 20000, and the metadata type is application data.
- FIG. 22 shows an example of syntax when the metadata type of the segment data is bitmap subtitle data (subtitle).
- the segment number is 10
- the segment valid period is 10000 to 12000
- the metadata type is subtitle.
- the subtitle sequence number is 1, the subtitle display area left end position is 200, the subtitle display area upper end position is 100, the subtitle display area right end position is 1400, and the subtitle display area lower end position is 300.
- the subtitles based on the bitmap are combined and displayed on the video of the program.
- FIG. 24 shows an example of syntax when the metadata type of the segment data is text caption data (caption).
- the segment number is 10
- the segment valid period is 10000 to 12000
- the metadata type is caption.
- the subtitle sequence number is 1, the subtitle display start horizontal position is 200, the subtitle display start vertical position is 100, the character size is 20, and the subtitle color is red.
- subtitles based on text are synthesized and displayed on the video of the program.
- FIG. 26 is a flowchart for explaining the new information service handling process by the receiving device 30.
- This new information service handling process is repeatedly executed while the receiving device 30 is receiving a program, and the receiving device 30 has already acquired and held the SDT and EIT included in the digital broadcast signal.
- step S1 the reception monitoring unit 81 of the analysis unit 66 determines whether or not the service (channel) has been changed by the user. If it is determined that the service has been changed, the process proceeds to step S2.
- step S2 the application control descriptor acquisition unit 82 determines whether or not the application control descriptor is included in the SDT corresponding to the changed service. If the application control descriptor is included, in step S3, the application control descriptor acquisition unit 82 determines whether the application control descriptor is included. Get the descriptor. Conversely, if it is determined that the application control descriptor is not included in the SDT corresponding to the service after the change, the process returns to step S1.
- step S1 If it is determined in step S1 that the service has not been changed by the user, the process proceeds to step S4.
- step S4 the reception monitoring unit 81 determines whether or not the next program is started with the service being received. If the next program is started, the process proceeds to step S5. If the next program has not yet started, the process returns to step S1.
- step S5 the application control descriptor acquisition unit 82 determines whether or not the application control descriptor is included in the EIT corresponding to the started program. If included, in step S6, the application control descriptor is acquired. Get the descriptor. Conversely, if it is determined that the application control descriptor is not included in the EIT corresponding to the started program, the process returns to step S1.
- step S7 the application control descriptor analysis unit 83 analyzes the application control descriptor acquired in step S3 or step S6, and determines whether the application control type is 1, 2, or 3.
- step S7 If it is determined in step S7 that the application control type of the application control descriptor is 1, the process proceeds to step S8.
- step S8 the application control descriptor analysis unit 83 notifies the control unit 68 of the analysis result of the application control descriptor according to the analysis result of the application control descriptor if the descriptor application device is the main body of the receiving device.
- the application engine 74 acquires and activates a new information service application from the server 22 under the control of the control unit 68. Note that the activated new information service application is subsequently executed within the operation effective range indicated by app_life_scope included in the application control descriptor. Then, the new information service application is terminated when the service or program being received exceeds the valid operation range.
- a new information service application can be acquired and activated in conjunction with a program or CM by the application control descriptor.
- step S7 If it is determined in step S7 that the application control type of the application control descriptor is 2, the process proceeds to step S9. In step S9, processing corresponding to the command information being broadcast (command information corresponding processing) is performed.
- FIG. 27 is a flowchart detailing command information handling processing.
- step S11 the command information detection unit 84 starts detecting command information from the digital broadcast signal being received, and waits until command information is detected. If command information is detected, the process proceeds to step S12.
- step S12 the command information analysis unit 85 reads the command ID of the command information detected in step S11, and determines whether or not the processing after step S14 has already been executed for the command information. If it is determined that the processing after step S14 has already been executed, the processing returns to processing step S11. On the other hand, when it is determined that the process after step S14 is not executed for the command information, the process proceeds to step S13.
- step S14 the command information analysis unit 85 refers to the command application device type of the command information, determines whether the command application device is a reception device body, and determines that the command application device is a reception device body. If so, the process proceeds to step S15.
- step S15 the command information analysis unit 85 refers to the command code of the command information and determines whether the command type is acquisition (registration), activation, event, interruption, or termination.
- step S16 the command information analysis unit 85 determines whether or not the command type is acquisition. If the command type is acquisition, the process proceeds to step S17.
- step S17 the command information analysis unit 85 supplies command information to the control unit 68.
- the control unit 68 controls the application engine 74 to acquire the new information service application specified by the application ID of the command information from the server 22 specified by the application URL.
- the acquired new information service application is held in the cache memory 73.
- step S16 If it is determined in step S16 that the type of command is not acquisition, the process proceeds to step S18.
- step S18 the command information analysis unit 85 determines whether or not the command type is activation. If it is activation, the process proceeds to step S19.
- step S 19 the command information analysis unit 85 supplies command information to the control unit 68.
- the control unit 68 determines whether or not the new information service application specified by the application ID of the command information is being suspended (suspended state). Specifically, when data indicating the interruption state is saved in the new information service application in the save memory 75B, it is determined that the data is being interrupted.
- step S19 If it is determined in step S19 that the new information service application is not suspended, the process proceeds to step S20.
- step S ⁇ b> 20 the application engine 74 follows the control from the control unit 68 when the program data of the new information service application specified by the application ID of the command information has not been acquired (when not stored in the cache memory 73). Get it.
- step S21 if there is a new information service application currently being executed, the application engine 74 terminates it according to the control from the control unit 68.
- step S22 the application engine 74 starts a new information service application specified by the application ID of the command information in accordance with the control from the control unit 68. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S19 If it is determined in step S19 that the new information service application specified by the application ID is suspended (suspended), the process proceeds to step S23.
- step S ⁇ b> 23 the application engine 74 moves the data in the save memory 75 ⁇ / b> B to the work memory 75 ⁇ / b> A according to the control from the control unit 68 and starts the new information service application specified by the application ID. Thereby, the suspended new information service application is resumed from the suspended state. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S18 If it is determined in step S18 that the command type is not activated, the process proceeds to step S24.
- step S24 the command information analysis unit 85 determines whether or not the command type is an event. If it is determined that the command type is an event, the process proceeds to step S25.
- step S25 the command information analysis unit 85 supplies command information to the control unit 68.
- the control unit 68 controls the application engine 74 only when the application ID of the command information matches the application ID of the operating new information service application, and the command information event is executed in the operating new information service application. Fire (execute) the event corresponding to the ID. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S24 If it is determined in step S24 that the command type is not event, the process proceeds to step S26.
- step S26 the command information analysis unit 85 determines whether or not the command type is interrupted. If it is determined that the command type is interrupted, the process proceeds to step S27.
- step S27 the command information analysis unit 85 supplies command information to the control unit 68.
- the application engine 74 saves data indicating the status of the new information service application currently being executed (that is, data currently written in the work memory 75A) in the save memory 75B. Close the currently running new information service app. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S26 If it is determined in step S26 that the command type is not interrupted, the command type should have been terminated, and the process proceeds to step S28.
- step S ⁇ b> 28 the command information analysis unit 85 supplies command information to the control unit 68. If the new information service application specified by the application ID of the command information is being executed, the application engine 74 ends the application engine 74 according to the control from the control unit 68.
- step S29 the application engine 74 deletes the data related to the new information service application specified by the application ID from the work memory 75A and the save memory 75B according to the control from the control unit 68, and stores the new information service application in the cache memory. Delete from 73. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S14 If it is determined in step S14 that the command application device is not the receiving device body, the process proceeds to step S30.
- step S30 the command information analysis unit 85 determines whether or not the external device 40 corresponding to the command application device type of the command information is connected based on the notification from the external I / F 76. The process proceeds to step S31.
- step S31 the external device command generation unit 86 generates a command for the connected external device 40 based on the command application device type, command code, and the like of the command information.
- the generated command is notified to the external device 40 via the external I / F 76.
- processing according to this command is executed. Thereafter, the process returns to step S11, and the subsequent steps are repeated.
- step S31 is skipped.
- the command information may be supplied to the external device 40 as it is, the command information may be analyzed by the external device 40, and a process corresponding to the analysis result may be performed.
- a new information service application is acquired in conjunction with a program or CM, activated, or an event is fired. Can be finished. Furthermore, the new information service application can be interrupted while maintaining the state in which the new information service application is being executed, and can be resumed from the interrupted state.
- step S7 If it is determined in step S7 that the application control type of the application control descriptor is 3, the process proceeds to step S10.
- step S10 a process corresponding to the application control data acquired from the server 22 (application control data corresponding process) is performed.
- FIG. 28 is a flowchart detailing the application control data handling process.
- step S41 the application control data acquisition unit 87 acquires application control data from the server 22 specified by app_control_data_url_byte of the application control descriptor.
- the acquired application control data (segment data sequence) is held in the segment data sequence holding unit 88.
- step S42 the segment data analyzing unit 89 detects the segment data constituting the held segment data sequence that matches the progress timing of the program being received. Specifically, a PTS indicating the progress position of the program being received is detected within the segment valid period of the segment data.
- step S43 if the detected segment data includes command data, the segment data analysis unit 89 performs the same processing as the command information handling processing described above.
- processing corresponding to the metadata for example, processing for displaying captions as described above with reference to FIGS. 19 to 25 is performed. Thereafter, the process returns to step S42, and the subsequent steps are repeated.
- a new information service application is acquired or activated in conjunction with a program or CM, as in the command information handling process. , Fire an event, or finish an event.
- the new information service application can be interrupted while holding the running state, and can be resumed from the suspended state.
- the method for distributing the access timings from the plurality of receiving apparatuses 30 to the server 22 is different from the command information handling process in the application control data handling process, based on the diffusion in the command data of the segment data. Disperse.
- FIG. 29 shows a method of distributing the access timing to the server 22 based on diffusion (number of distributions Rate, maximum delay time range, and command application diffusion period period).
- the access timings from the plurality of receiving devices 30 to the server 22 can be distributed within the command application diffusion period.
- the receiving device 30 whose channel selection has been changed from the other service to the service executes the command at the timing when the delay time d has elapsed from the channel selection timing if the channel selection timing is within the command application diffusion period. (In the case of the receiving device D in the figure). If the tuning timing is outside the command application spreading period, the command is executed at the tuning timing (in the case of the receiving device E in the figure).
- FIG. 30 shows the state transition of the new information service application in the receiving device 30 or the external device 40.
- the new information service application is transitioned to one of four states: a released state (Released), a ready state (Ready), a running state (Active), or a suspended state (Suspended). .
- Open state refers to a state where a new information service application has not been acquired.
- the ready state indicates a state in which the new information service application has been acquired and is not being executed.
- the running state indicates a state in which the new information service application is being executed.
- the suspended state refers to a state in which execution of the new information service application is suspended and data indicating the state at the time of suspension is retained in the save memory 75B.
- the state transits to the preparation state.
- the state transits to the running state.
- the new information service application In the ready state, when the expiration date of the acquired new information service application elapses, the new information service application is erased and transitions to the open state.
- the state transits to the preparation state.
- the new information service application for which tuning has been suspended In the suspended state, if the new information service application for which tuning has been suspended is outside the effective range of the application, it transitions to the ready state.
- FIG. 31 shows a first operation scenario of the new information service application.
- the first operation scenario corresponds to a case where the application control type of the application control descriptor is 1.
- the EIT for the program 2 is referred to.
- the EIT includes an application control descriptor and the application control type is 1, processing based on the application control descriptor is performed. That is, if the receiving device body is designated as the descriptor application device, the receiving device 30 acquires and activates the new information service application from the server 22. If the external device 40 is specified as the descriptor application device, the receiving device 30 generates a command for the external device 40 and notifies the external device 40, and the external device 40 acquires and executes a new information service application from the server 22 To do.
- the new information service application is activated based on the application control descriptor included in the EIT corresponding to the program, the activated new information service application is terminated when the program ends.
- the application control type of the application control descriptor is 1, detection or reception of command information by the receiving device 30 or acquisition of application control data from the server 22 is not necessary, so that the processing load on the receiving device 30 is reduced. be able to.
- FIG. 32 shows a second operation scenario of the new information service application.
- the second operation scenario corresponds to a case where the application control type of the application control descriptor is 2.
- the receiving device 30 receives command information broadcast included in a digital broadcast signal and the receiving device body is designated as the command application device, the receiving device 30 operates according to the command type of the command information. I do. Specifically, acquisition, activation, event firing, interruption, resumption (activation), and termination of a new information service application are performed. If the external device 40 is specified as the command application device of the command information, the receiving device 30 generates a command for the external device 40 and notifies the external device 40, and the external device 40 acquires the new information service application from the server 22. Execute, end.
- FIG. 33 shows a third operation scenario of the new information service application.
- the third operation scenario corresponds to the case where the application control type of the application control descriptor is 3.
- the receiving device body is specified as the command application device of the command data included in the segment data of the application control data acquired by the receiving device 30 from the server 22, the receiving device 30 corresponds to the command type of the command data.
- Perform the action Specifically, acquisition, activation, event firing, interruption, resumption (activation), and termination of a new information service application are performed.
- the external device 40 is specified as the command application device of the command data, the receiving device 30 generates a command for the external device 40 and notifies the external device 40, and the external device 40 acquires the new information service application from the server 22. Execute, end.
- FIG. 34 shows a fourth operation scenario of the new information service application.
- the fourth operation scenario corresponds to the case where the application control type of the application control descriptor is 3, like the third operation scenario.
- the fourth operation scenario operations of a plurality of receiving devices 30 are shown.
- the receiving device A that continuously receives the same service acquires (registers) the new information service application from the server 22 in accordance with the acquisition (registration) command at the timing of the start_PTS of the sequence command.
- the receiving device B whose channel selection has been changed from another service to the service acquires (registers) a new information service application from the server 22 in response to an acquisition (registration) command at the timing of channel selection. Then, the receiving devices A and B activate (execute) the new information service application in response to the activation command at the timing of the sequence command start_PTS.
- the receiving device C whose channel selection has been changed from another service to the service acquires (registers) and starts (executes) a new information service application from the server 22 in response to the activation command at the timing of channel selection. To do.
- the receiving device D changes the channel selection from another service to the corresponding service further later than the receiving device C, the segment data validity period of the segment data that already includes the activation command has passed. The processing related to is not executed.
- the broadcasting side specifies not only the receiving device 30 but also the external device 40 connected to the receiving device 30 by specifying the type of the program. It becomes possible to control in conjunction with the progress of the CM.
- a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a program recording medium in a general-purpose personal computer or the like.
- FIG. 35 is a block diagram showing an example of the hardware configuration of a computer that executes the series of processes described above by a program.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- An input / output interface 105 is further connected to the bus 104.
- the input / output interface 105 includes an input unit 106 including a keyboard, a mouse, and a microphone, an output unit 107 including a display and a speaker, a storage unit 108 including a hard disk and a non-volatile memory, and a communication unit 109 including a network interface.
- a drive 110 for driving a removable medium 111 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is connected.
- the CPU 101 loads, for example, the program stored in the storage unit 108 to the RAM 103 via the input / output interface 105 and the bus 104 and executes the program. Is performed.
- the program executed by the computer may be a program that is processed in time series in the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program for processing.
- the program may be processed by a single computer or may be distributedly processed by a plurality of computers. Furthermore, the program may be transferred to a remote computer and executed.
- system represents the entire apparatus composed of a plurality of apparatuses.
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Abstract
Description
[放送システムの構成例について]
図1は、実施の形態である放送システムを示している。この放送システム10は、放送側に設けられる放送装置21およびサーバ22、並びに受信者側にそれぞれ設けられる受信装置30および外部装置40から構成される。
図5は、受信装置30の構成例を示している。受信装置30は、チューナ61、多重分離部62、オーディオデコーダ63、音声出力部64、ビデオデコーダ65、解析部66、映像出力部67、制御部68、メモリ69、操作部70、通信I/F72、キャッシュメモリ73、アプリエンジン74、アプリ用メモリ75、および外部I/F76から構成される。
図7は、外部装置40の構成例を示している。ただし、図7には、新情報サービスアプリの実行に関係する部位のみが示されており、新情報サービスアプリの実行に関係しない部位については適宜省略されている。
次に、デジタル放送信号に含めて放送されるアプリケーション制御記述子について説明する。アプリケーション制御記述子は、デジタル放送信号のSDTまたはEITに含めて放送される。
次に、デジタル放送信号の映像ストリームなどに含めて放送されるコマンド情報について説明する。
次に、サーバ22から受信装置30に供給されるアプリケーション制御データについて説明する。
次に、受信装置30の動作について説明する。図26は、受信装置30による新情報サービス対応処理を説明するフローチャートである。
図30は、受信装置30または外部装置40における新情報サービスアプリの状態遷移を示している。
図31は、新情報サービスアプリの第1の動作シナリオを示している。当該第1の動作シナリオは、アプリケーション制御記述子のアプリケーション制御タイプが1である場合に対応する。
81 受信監視部, 82 アプリケーション制御記述子取得部, 83 アプリケーション記述子解析部, 84 コマンド情報検出部, 85 コマンド情報解析部, 86 外部装置コマンド生成部, 87 アプリケーション制御データ取得部, 88 セグメントデータシーケンス保持部, 89 セグメントデータ解析部,100 コンピュータ, 101 CPU
Claims (15)
- 放送網を介して放送されたコンテンツを受信する受信装置において、
前記放送網を介して放送された放送信号を受信する受信部と、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報を、受信された前記放送信号から取得するコマンド情報取得部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を実行するコマンド情報解析部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を前記外部装置に実行させる外部装置制御部と
を含む受信装置。 - 前記コマンド適用装置情報は、前記受信装置本体または前記受信装置に接続され得る複数タイプの外部装置のうちの少なくとも1つを指定する
請求項1に記載の受信装置。 - 前記コマンド情報解析部は、前記コマンド適用装置情報で前記受信装置本体が指定されている場合、前記コマンドに対応して前記所定のアプリケーションプログラムに関する処理を実行し、
前記外部装置制御部は、前記コマンド適用装置情報で前記外部装置が指定されている場合、前記所定のアプリケーションプログラムに関する処理を指定された前記外部装置に実行させるための外部装置用コマンドを生成する
請求項2に記載の受信装置。 - アプリケーション制御タイプが記述されているアプリケーション制御記述子を、受信された前記放送信号から取得するアプリケーション制御記述子取得部を
さらに含み、
前記コマンド情報取得部は、取得された前記アプリケーション制御記述子の前記アプリケーション制御タイプに応じて、前記コマンド情報を前記放送信号から取得する
請求項2に記載の受信装置。 - 取得された前記アプリケーション制御記述子の前記アプリケーション制御タイプに応じて前記コマンド情報が前記放送信号から取得されない場合、前記アプリケーション制御記述子に従い、前記所定のアプリケーションプログラムに関する処理を実行するアプリケーション制御記述子解析部を
さらに含む請求項4に記載の受信装置。 - 前記コマンド情報は、所定のアプリケーションプログラムの取得、起動、イベント発火、中断、または終了のうちのいずれかのコマンドを含む
請求項2に記載の受信装置。 - 放送網を介して放送されたコンテンツを受信する受信装置の受信方法において、
前記受信装置による、
前記放送網を介して放送された放送信号を受信する受信ステップと、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報を、受信された前記放送信号から取得するコマンド情報取得ステップと、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を実行するコマンド情報解析ステップと、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を前記外部装置に実行させる外部装置制御ステップと
を含む受信方法。 - 放送網を介して放送されたコンテンツを受信するコンピュータを、
前記放送網を介して放送された放送信号を受信する受信部と、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報を、受信された前記放送信号から取得するコマンド情報取得部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を実行するコマンド情報解析部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を前記外部装置に実行させる外部装置制御部と
して機能させるプログラム。 - 放送網を介して受信装置にコンテンツを供給する供給装置において、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報と、前記コンテンツを含む放送信号を前記放送網を介して放送する放送部を
含む供給装置。 - 前記コマンド適用装置情報は、前記受信装置本体または前記受信装置に接続され得る複数タイプの外部装置のうちの少なくとも1つを指定する
請求項9に記載の供給装置。 - 前記放送部は、アプリケーション制御タイプが記述されているアプリケーション制御記述子も含む前記放送信号を前記放送網を介して放送し、
前記受信装置では、受信された前記アプリケーション制御記述子の前記アプリケーション制御タイプに応じて、前記放送信号から前記コマンド情報が取得される
請求項10に記載の供給装置。 - 前記コマンド情報は、所定のアプリケーションプログラムの取得、起動、イベント発火、中断、または終了のうちのいずれかのコマンドを含む
請求項10に記載の供給装置。 - 放送網を介して受信装置にコンテンツを供給する供給装置の供給方法において、
供給装置による、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報と、前記コンテンツを含む放送信号を前記放送網を介して放送する放送ステップを
含む供給方法。 - 放送網を介して受信装置にコンテンツを供給するコンピュータに、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報と、前記コンテンツを含む放送信号を前記放送網を介して放送する放送部と
して機能させるプログラム。 - 供給装置から放送網を介して受信装置にコンテンツを供給する放送システムにおいて、 供給装置は、
受信装置本体または前記受信装置に接続され得る外部装置の少なくとも一方を指定するコマンド適用装置情報と、前記コンテンツの進行に連動させる所定のアプリケーションプログラムに関するコマンドとを含むコマンド情報と、前記コンテンツを含む放送信号を前記放送網を介して放送する放送部を
含み、
受信装置は、
前記放送網を介して放送された前記放送信号を受信する受信部と、
受信された前記放送信号から前記コマンド情報を取得するコマンド情報取得部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を実行するコマンド情報解析部と、
前記コマンド情報に対応して前記所定のアプリケーションプログラムに関する処理を前記外部装置に実行させる外部装置制御部と
を含む
放送システム。
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- 2012-01-17 BR BR112013018413A patent/BR112013018413A2/pt not_active Application Discontinuation
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CN103329562A (zh) | 2013-09-25 |
EP2670137A1 (en) | 2013-12-04 |
US8966564B2 (en) | 2015-02-24 |
MX2013008348A (es) | 2013-08-27 |
CA2822054A1 (en) | 2012-08-02 |
KR102046938B1 (ko) | 2019-11-20 |
BR112013018413A2 (pt) | 2016-10-11 |
JP2012156712A (ja) | 2012-08-16 |
US10194211B2 (en) | 2019-01-29 |
US20150163557A1 (en) | 2015-06-11 |
US20130291049A1 (en) | 2013-10-31 |
KR20140000306A (ko) | 2014-01-02 |
EP2670137A4 (en) | 2015-04-29 |
JP5783402B2 (ja) | 2015-09-24 |
CN103329562B (zh) | 2017-02-22 |
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