RECEIVER, RECEPTION METHOD, TRANSMITTER, TRANSMISSION METHOD, PROGRAM AND BROADCASTING SYSTEM

• US 20120050620A1
• Filed: 08/18/2011
• Published: 03/01/2012
• Est. Priority Date: 08/27/2010
• Status: Active Grant

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Inventors: KITAZATO, Naohisa
• Granted Patent: US 8,988,612 B2
• Time in Patent Office: Days
• US Class Current: 348/723
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4343 Extraction or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/443 OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
• CPC Class Codes: H04N 21/6543 for forcing some client operations, e.g. recording remote booting in general G06F9/4416
• CPC Class Codes: H04N 21/8173 End-user applications, e.g. Web browser, game

Abstract

Disclosed herein is a receiver for receiving transmitted AV content, the receiver including an extraction section adapted to extract trigger information, transmitted together with the AV content, about control over an application program to be executed in response to the AV content, and a control section adapted to control the acquisition, registration or activation of the application program, the firing of an event in the active application program, or the suspension or termination of the active application program according to one of the following commands indicated by the extracted trigger information, namely, Pre-cache, Register, Execute, Inject_event, Suspend or Terminate.

Claims

1. A receiver for receiving transmitted AV content, the receiver comprising:

an extraction section adapted to extract trigger information, transmitted together with the AV content, about control over an application program to be executed in response to the AV content; and

a control section adapted to control the acquisition, registration or activation of the application program, the firing of an event in the active application program, or the suspension or termination of the active application program according to one of the following commands indicated by the extracted trigger information, namely, Pre-cache, Register, Execute, Inject_event, Suspend or Terminate,

AV standing for audio/visual.

2. The receiver of claim 1, wherein

if the extracted trigger information is the Suspend command, the control section suspends the active application program and stores information about the state of the application program at the time of suspension in a memory.

3. The receiver of claim 2, wherein

if the extracted trigger information is the Execute command and when suspended state information is stored in the memory that indicates the state of the application program to be activated at the time of suspension, the control section resumes the application program from the state in which the program is at the time of suspension based on the suspended state information.

4. The receiver of claim 1, wherein

if the extracted trigger information is the Pre-cache command, the control section causes the application program to be acquired from the broadcasting signal of the AV content or a predetermined server based on the trigger information.

5. The receiver of claim 1, wherein

if the extracted trigger information is the Execute command and when the application program to be activated has yet to be acquired, the control section causes the application program to be acquired from the broadcasting signal of the AV content or the predetermined server based on the trigger information.

6. The receiver of claim 1, wherein

if the extracted trigger information is the Register command, the control section causes the application program to be acquired from the broadcasting signal of the AV content or the predetermined server and the program to be stored based on the trigger information, and then the control section manages the acquired application program so as to be associated with the expire date included in the trigger information.

7. The receiver of claim 6, wherein

if the extracted trigger information is the Register command, the control section causes the application program to be acquired from the broadcasting signal of the AV content or the predetermined server and the program to be stored based on the identification information of the application program also serving as location information of the application program, and then the control section manages the acquired application program so as to be associated with the expire date included in the trigger information.

8. The receiver of claim 7, wherein

if the expire date of the registered application program is exceeded, the control section causes the application program to be deleted.

9. The receiver of claim 7, wherein

if the extracted trigger information is the Register command, the control section causes the application program to be acquired from the broadcasting signal of the AV content or the predetermined server and the program to be stored based on the trigger information, and then the control section manages the acquired application program so as to be also associated with the priority level included in the trigger information.

10. The receiver of claim 9, wherein

if the storage capacity is insufficient to store the application program when acquired, the control section provides sufficient storage capacity by deleting, of the application programs that have been registered, the application program with a lower priority level than that to be acquired.

11. A reception method for receiving transmitted AV content, the reception method comprising:

extracting trigger information, transmitted together with the AV content, about control over an application program to be executed by the receiver in response to the AV content; and

controlling the acquisition, registration or activation of the application program, the firing of an event in the active application program, or the suspension or termination of the active application program according to one of the following commands indicated by the extracted trigger information, namely, Pre-cache, Register, Execute, Inject_event, Suspend or Terminate,

AV standing for audio/visual.

12. A program for controlling a receiver adapted to receive transmitted AV content, the program causing a computer of the receiver to:

extract trigger information, transmitted together with the AV content, about control over an application program to be executed in response to the AV content; and

control the acquisition, registration or activation of the application program, the firing of an event in the active application program, or the suspension or termination of the active application program according to one of the following commands indicated by the extracted trigger information, namely, Pre-cache, Register, Execute, Inject_event, Suspend or Terminate,

AV standing for audio/visual.

13. A transmitter for transmitting AV content, comprising:

a transmission section adapted to transmit, together with the AV content, trigger information about control over an application program to be executed by a receiver in response to the AV content, wherein

the trigger information indicates at least one of the following commands, namely, Pre-cache instructing the acquisition of the application program, Register instructing the registration thereof, Execute instructing the activation thereof, Inject_event instructing the firing of an event in the active application program, Suspend instructing the suspension of the active application program and Terminate instructing the termination of the active application program,

AV standing for audio/visual.

14. The transmitter of claim 13, wherein

the transmission section transmits the trigger information as contained in the adaptation field of the packet making up the transport stream for the AV content.

15. The transmitter of claim 14, wherein

the transmission section transmits the trigger information together with program clock reference as contained in the adaptation field of the packet making up the transport stream for the AV content.

16. The transmitter of claim 13, wherein

the transmission section transmits the trigger information as embedded in the image for the AV content.

17. A transmission method of a transmitter for transmitting AV content, the transmission method comprising:

transmitting, together with the AV content, trigger information about control over an application program to be executed by a receiver in response to the AV content, wherein

the trigger information indicates at least one of the following commands, namely, Pre-cache instructing the acquisition of the application program, Register instructing the registration thereof, Execute instructing the activation thereof, Inject_event instructing the firing of an event in the active application program, Suspend instructing the suspension of the active application program and Terminate instructing the termination of the active application program,

AV standing for audio/visual.

18. A program for controlling a transmitter adapted to transmit AV content, the program causing a computer of the transmitter to:

transmit, together with the AV content, trigger information about control over an application program to be executed by a receiver in response to the AV content, wherein

the trigger information indicates at least one of the following commands, namely, Pre-cache instructing the acquisition of the application program, Register instructing the registration thereof, Execute instructing the activation thereof, Inject_event instructing the firing of an event in the active application program, Suspend instructing the suspension of the active application program and Terminate instructing the termination of the active application program,

AV standing for audio/visual.

19. A broadcasting system comprising:

a transmitter operable to transmit AV content; and

a receiver operable to receive the AV content, wherein

the transmitter includes a transmission section adapted to transmit, together with the AV content, trigger information about control over an application program to be executed by the receiver in response to the AV content, and

the receiver includes

an extraction section adapted to extract trigger information, transmitted together with the AV content, about control over an application program to be executed in response to the AV content, and

a control section adapted to control the acquisition, registration or activation of the application program, the firing of an event in the active application program, or the suspension or termination of the active application program according to one of the following commands indicated by the extracted trigger information, namely, Pre-cache, Register, Execute, Inject_event, Suspend or Terminate,

AV standing for audio/visual.