Receiver, reception method, transmitter and transmission method

1. A receiver comprising:

circuitry configured to

receive a broadcasting signal, the broadcasting signal including AV (audio and visual) content and control information synchronized with the AV content,

activate a downloadable application program responsive to the control information, the downloadable application program having a URL (uniform resource locator) of related content relating to the AV content defined therein,

execute a function of the downloadable application program to register the URL responsive to occurrence of a user input event while the downloadable application program is active, and

exercise control in such a manner that when the registered URL of the related content is selected, the related content is output for display.

2. The receiver of claim 1 , wherein the circuitry is configured to

store registration information relating to the related content in a memory, and

present the related content selected from a list that matches the registration information.

3. The receiver of claim 2 , wherein

the related content is a webpage, and

the circuitry is configured to

store, as the registration information, the URL of the webpage, and

output for display the webpage acquired according to the URL.

4. The receiver of claim 2 , wherein

the related content includes recorded content obtained by recording the AV content, and

the circuitry is configured to

store, as the registration information, identification information of the recorded content, and

reproduce the recorded content specified by the identification information.

5. The receiver of claim 4 , wherein the circuitry is configured to

store, as the registration information, time information indicating the reproduction start time of the recorded content together with the identification information, and

reproduce the recorded content specified by the identification information from the time indicated by the time information.

6. The receiver of claim 2 , wherein

the related content includes VOD (Video On Demand) content, and

the circuitry is configured to

store, as the registration information, identification information of the VOD content, and

output for display the VOD content acquired according to the identification information.

7. The receiver of claim 6 , wherein the circuitry is configured to

store, as the registration information, time information indicating the reproduction start time of the VOD content together with the identification information, and

output for display the VOD content specified by the identification information from the time indicated by the time information.

8. The receiver of claim 1 , wherein

the user input event corresponds to receiving an instruction to register the URL of the related content.

9. The receiver of claim 1 , wherein

the downloadable application program is an HTML (Hyper Text Markup Language) document written in HTML, and

the function is written as a script in the HTML document.

10. The receiver of claim 1 , wherein

the downloadable application program is delivered via the Internet.

11. A reception method of a receiver comprising:

receiving, by circuitry of the receiver, a broadcasting signal, the broadcasting signal including AV (audio and visual) content and control information synchronized with the AV content;

activating a downloadable application program responsive to the control information, the downloadable application program having a URL (uniform resource locator) of related content relating to the AV content defined therein,

executing, by the circuitry, a function of the downloadable application program to register the URL responsive to occurrence of a user input event while the downloadable application program is active; and

exercising control in such a manner that when the registered URL of the related content is selected, the related content is output for display.

12. A transmitter comprising:

circuitry configured to

acquire a downloadable application program to be activated responsive to control information synchronized with AV content, the control information and the AV content being included in a broadcasting signal, and

transmit the downloadable application program, wherein

the downloadable application program includes information indicating a URL (uniform resource locator) of related content relating to the AV content, and comprises a function that, when being executed responsive to occurrence of a user input event while the downloadable application program is active, registers the URL.

13. A transmission method of a transmitter comprising:

acquiring, by circuitry of the transmitter, a downloadable application program to be activated responsive to control information synchronized with AV content, the control information and the AV content being included in a broadcasting signal; and

transmitting, by the circuitry, the downloadable application program, wherein

the downloadable application program includes information indicating a URL (uniform resource locator) of related content relating to the AV content, and comprises a function that, when being executed responsive to occurrence of a user input event while the downloadable application program is active, registers the URL.

14. The receiver of claim 1 , further comprising:

a memory, wherein

the downloadable application is configured to cause the circuitry to store the URL in the receiver's set of Links, which is stored in the memory.

15. The receiver of claim 1 , wherein the circuitry is configured to receive a plurality of downloadable application programs from different television broadcasters.

16. The receiver of claim 15 , wherein each of the plurality of downloadable application programs is programmed to cause the circuitry to store a different URL in the receiver's set of Links.

17. The receiver of claim 1 , wherein the control information comprises trigger information.

18. The transmitter of claim 12 , wherein the control information comprises trigger information.