URLs for acquiring or transmitting data

1. A method of a reception apparatus for communicating with a server to download or upload data, the method comprising:

receiving a digital television broadcast signal that includes content and a URI (Uniform Resource Identifier) message, the URI message including a URI type and a DNS (Domain Name System) name registered with the IANA (Internet Assigned Numbers Authority);

generating a URL (Uniform Resource Locator) based on the registered DNS name included in the received URI message and a predetermined domain name;

downloading data from the server using the generated URL when the URI type included in the received URI message includes a first value; and

uploading data to the server using the generated URL when the URI type included in the received URI message includes a second value, wherein

the predetermined domain name includes a top-level domain name and a second-level domain name of the URL.

2. The method according to claim 1 , wherein the registered DNS name includes at least one lower-level domain name of the URL, the at least one lower-level domain name being subordinate to the second-level domain name.

3. The method according to claim 1 , further comprising:

extracting the URI message from an audio or a video watermark embedded in the content.

4. The method according to claim 1 , wherein

the URI message includes a URI string, and

the step of generating the URL includes generating the URL based on the registered DNS name included in the received URI message, the URI string included in the received URI message, and the predetermined domain name.

5. The method according to claim 1 , wherein the URI type indicates that the URL corresponds to a signaling server, an electronic service guide server, a service usage data gathering report server, an emergency information server, or an application manifest server.

6. The method according to claim 1 , further comprising:

outputting the received content for display to a user, wherein

the data is an application to be executed in synchronization with the displayed content.

7. A non-transitory computer-readable medium storing instructions which when executed by a computer cause the computer to perform a method for communicating with a server to download or upload data, the method comprising:

receiving a digital television broadcast signal that includes content and a URI (Uniform Resource Identifier) message, the URI message including a URI type and a DNS (Domain Name System) name registered with the IANA (Internet Assigned Numbers Authority);

generating a URL (Uniform Resource Locator) based on the registered DNS name included in the received URI message and a predetermined domain name;

downloading data from the server using the generated URL when the URI type included in the received URI message includes a first value; and

uploading data to the the server using the generated URL when the URI type included in the received URI message includes a second value, wherein

the predetermined domain name includes a top-level domain name and a second-level domain name of the URL.

8. The non-transitory computer-readable medium according to claim 7 , wherein the registered DNS name includes at least one lower-level domain name of the URL, the at least one lower-level domain name being subordinate to the second-level domain name.

9. The non-transitory computer-readable medium according to claim 7 , further comprising:

extracting the URI message from an audio or a video watermark embedded in the content.

10. The non-transitory computer-readable medium according to claim 7 , wherein

the URI message includes a URI string, and

the step of generating the URL includes generating the URL based on the registered DNS name included in the received URI message, the URI string included in the received URI message, and the predetermined domain name.

11. The non-transitory computer-readable medium according to claim 7 , wherein the URI type indicates that the URL corresponds to a signaling server, an electronic service guide server, a service usage data gathering report server, an emergency information server, or an application manifest server.

12. The non-transitory computer-readable medium according to claim 7 , further comprising:

outputting the received content for display to a user, wherein

the data is an application to be executed in synchronization with the displayed content.

13. A reception apparatus, comprising:

circuitry configured to

receive a digital television broadcast signal that includes content and a URI (Uniform Resource Identifier) message, the URI message including a URI type and a DNS (Domain Name System) name registered with the IANA (Internet Assigned Numbers Authority);

generate a URL (Uniform Resource Locator) based on the registered DNS name included in the received URI message and a predetermined domain name;

download data from a server using the generated URL when the URI type included in the received URI message includes a first value; and

upload data to the the server using the generated URL when the URI type included in the received URI message includes a second value, wherein

the predetermined domain name includes a top-level domain name and a second-level domain name of the URL.

14. The reception apparatus according to claim 13 , wherein the registered DNS name includes at least one lower-level domain name of the URL, the at least one lower-level domain name being subordinate to the second-level domain name.

15. The reception apparatus according to claim 13 , wherein the circuitry is configured to

extract the URI message from an audio or a video watermark embedded in the content.

16. The reception apparatus according to claim 13 , wherein

the URI message includes a URI string, and

the circuitry is further configured to

generate the URL based on the registered DNS name included in the received URI message, the URI string included in the received URI message, and the predetermined domain name.

17. The reception apparatus according to claim 13 , wherein the URI type indicates that the URL corresponds to a signaling server, an electronic service guide server, a service usage data gathering report server, an emergency information server, or an application manifest server.

18. The reception apparatus according to claim 13 ,

wherein

the circuitry is configured to output the received content for display to a user, and

the data is an application to be executed in synchronization with the displayed content.

19. The method according to claim 4 , wherein the URI type is an 8-bit unsigned integer that identifies a type of the URI string.

20. The method according to claim 19 , wherein, in the URI message, the URI type precedes the DNS name and the URI string.