Disparity data transport in standard caption service
View Patent ↗A method of processing disparity data for closed captions for three dimensional video involves receiving closed caption data including closed caption text within a first Standard service block having a service number in the range of 1-6; receiving closed caption disparity data within a Standard service block having a service number equal to n, where n is between 1 and 6; receiving a linkage field which associates each instance of said disparity data to a corresponding Standard service; parsing the disparity data from the closed caption data appearing in service number n; and processing the caption text and disparity data to produce an output suitable for defining a rendering of a three dimensional image on a display of the caption text at a z-axis position defined by the disparity data. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
1. A method for processing disparity data for closed captions for three dimensional video, comprising:
receiving closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receiving closed caption disparity data within a second Standard service block associated with a second Standard caption service having a service number equal to 6;
parsing, by circuitry of a reception apparatus, the disparity data from the second Standard caption service having the service number 6, the disparity data including a linkage field which associates said disparity data with the first Standard caption service;
processing, by the circuitry of the reception apparatus, the caption text and the disparity data to produce an output suitable for defining a three dimensional television display of the caption text at a z-axis position based on the disparity data;
where the disparity data are carried in a CEA-708 compliant variable length command; and
displaying the closed caption text as a stereoscopic image.
2. A method for processing disparity data for closed captions for three dimensional video, comprising:
receiving closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receiving closed caption disparity data within a second Standard service block associated with a second Standard caption service having a service number equal to n, where n is between 1 and 6;
parsing, by circuitry of a reception apparatus, the disparity data from the second Standard caption service having the service number n, the disparity data including a linkage field which associates said disparity data with the first Standard caption service; and
processing, by the circuitry of the reception apparatus, the caption text and the disparity data to produce an output suitable for defining a display of the caption text.
3. The method according to claim 2 , where the disparity data are carried in a CEA-708 compliant variable length command.
4. The method according to claim 3 where the Standard service number n equals 6.
5. The method according to claim 2 , further comprising displaying the closed caption text as a stereoscopic image on the display.
6. The method according to claim 2 , wherein the first Standard caption service and the second Standard caption service have different service numbers.
7. A non-transitory computer readable storage medium storing instructions that when executed on one or more programmed processors execute a method according to claim 2 .
8. A method for processing disparity data for closed captions for three dimensional video, comprising:
receiving closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receiving closed caption disparity data within a second Standard service block associated with a second Standard caption service having service number equal to 6;
parsing, by circuitry of a reception apparatus, the disparity data from the second Standard caption service having the service number 6, the disparity data including a linkage field which associates said disparity data with the first Standard caption service; and
processing, by the circuitry of the reception apparatus, the caption text and the disparity data to produce an output suitable for defining a display of the caption text at a z-axis position based on the disparity data.
9. The method according to claim 8 , where the disparity data are carried in a CEA-708 compliant variable length command.
10. The method according to claim 8 , further comprising displaying the closed caption text as a stereoscopic image on the display.
11. A non-transitory computer readable storage medium storing instructions that when executed on one or more programmed processors execute a method according to claim 8 .
12. A television receiver device that processes disparity data for closed captions, comprising:
circuitry configured to
receive closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receive closed caption disparity data within a second Standard service block associated with a second Standard caption service having a service number equal to n, where n is between 1 and 6;
parse the disparity data from the second Standard caption service having the service number n, the disparity data including a linkage field which associates said disparity data with the first Standard caption service; and
process the caption text and the disparity data to produce an output suitable for defining a display of the caption text.
13. The device according to claim 12 , where the disparity data are carried in a CEA-708 compliant variable length command.
14. The device according to claim 13 , where the Standard service number n equals 6.
15. The device according to claim 12 , further comprising a three dimensional television display configured to display the closed caption text as a stereoscopic image produced by the compositor.
16. A television receiver device that processes disparity data for closed captions, comprising:
circuitry configured to
receive closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receive closed caption disparity data within a second Standard service block associated with a second Standard caption service having a service number equal to n, where n is between 1 and 6;
parse the disparity data from the second Standard caption service having the service number n, the disparity data including a linkage field which associates said disparity data with the first Standard caption service; and
process the caption text and disparity data to produce an output suitable for defining a rendering of the caption text at a z-axis position based on the disparity data.
17. The device according to claim 16 , where the disparity data are carried in a CEA-708 compliant variable length command.
18. The device according to claim 16 , where the Standard caption service number equals service number 6.
19. The device according to claim 16 , further comprising a three dimensional television display configured to display the closed caption text as a stereoscopic image.
20. A television receiver device that processes disparity data for closed captions, comprising:
a three dimensional television display; and
circuitry configured to
receive closed caption data including closed caption text within a first Standard service block associated with a first Standard caption service having a service number in the range of 1-6;
receive closed caption disparity data within a second Standard service block associated with a second Standard caption service having a service number equal to 6;
parse the disparity data from the second Standard caption service having the service number n, the disparity data including a linkage field which associates said disparity data with the first Standard caption service; and
process the caption text and the disparity data to produce an output suitable for defining a display of the caption text at a z-axis position based on the disparity data;
where the disparity data are carried in a CEA-708 compliant variable length command.