Broadcast receiver and method for launching broadcaster application based on URL in application signaling information

1. A digital broadcast receiver for receiving a broadcast signal, the digital broadcast receiver comprising:

a tuner configured to receive the broadcast signal including a table for service, video data for a broadcast program and application signaling information,

wherein the table for service includes IP (Internet Protocol) address of a LCT (Layered Coding Transport) channel carrying service signaling information and UDP (User Datagram Protocol) port number of the LCT channel carrying the service signaling information,

wherein the application signaling information includes a URL (Uniform Resource Locator) of an entry page of a broadcaster application;

a network interface configured to receive at least one content;

a cache configured to store the at least one content; and

a processor configured to launch the broadcaster application after the digital broadcast receiver receives the application signaling information and then forwards the URL to a first module capable of processing HTML5,

wherein the first module loads the entry page of the broadcaster application from the URL, and the URL is used to point to an external internet server or to a second module within the digital broadcast receiver.

2. The digital broadcast receiver of claim 1 , wherein the service signaling information includes DASH (Dynamic Adaptive Streaming over HTTP) MPD (Media Presentation Description).

3. The digital broadcast receiver of claim 2 , wherein the table for service is represented as an XML (eXtensible Markup Language) document.

4. The digital broadcast receiver of claim 3 , wherein the table for service further includes URL for the service signaling information via broadband.

5. The digital broadcast receiver of claim 4 , wherein the digital broadcast receiver includes a television.

6. A method for receiving a broadcast signal in a digital broadcast receiver, the method comprising:

receiving the broadcast signal including a table for service, video data for a broadcast program and application signaling information,

wherein the table for service includes IP (Internet Protocol) address of a LCT (Layered Coding Transport) channel carrying service signaling information and UDP (User Datagram Protocol) port number of the LCT channel carrying the service signaling information,

wherein the application signaling information includes a URL (Uniform Resource Locator) of an entry page of a broadcaster application;

receiving at least one content via a network interface;

storing the at least one content in a memory; and

launching the broadcaster application after receiving the application signaling information and then forwarding the URL to a first module capable of processing HTML5,

wherein the first module loads the entry page of the broadcaster application from the URL, and the URL is used to point to an external internet server or to a second module within the digital broadcast receiver.

7. The method of claim 6 , wherein the service signaling information includes DASH (Dynamic Adaptive Streaming over HTTP) MPD (Media Presentation Description).

8. The method of claim 7 , wherein the table for service is represented as an XML (eXtensible Markup Language) document.

9. The method of claim 8 , wherein the table for service further includes URL for the service signaling information via broadband.

10. The method of claim 9 , wherein the digital broadcast receiver includes a television.