DISPARITY DATA TRANSPORT IN UNANNOUNCED STANDARD CAPTION SERVICE
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Abstract
A method of a reception apparatus for processing closed caption data. The method includes receiving, by circuitry of the reception apparatus, audio/video (A/V) content and closed caption data for a first caption service and a second caption service. The closed caption data for the first caption service includes closed caption text and the closed caption data for the second caption service includes additional data. Caption service blocks are extracted from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content. The additional data included in the closed caption data for the second caption service is parsed from the caption services blocks for the second caption service. Further, a presentation of the A/V content and the closed caption text is output by the circuitry for display to a user of the reception apparatus based on the additional data parsed from the caption service blocks for the second caption service.
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Citations
14 Claims
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1. (canceled)
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2. A method of a reception apparatus for processing closed caption data, the method comprising:
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receiving, by circuitry of the reception apparatus, audio/video (A/V) content and closed caption data for a first caption service and a second caption service, the closed caption data for the first caption service including closed caption text and the closed caption data for the second caption service including additional data; extracting caption service blocks from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content; parsing the additional data included in the closed caption data for the second caption service from the caption service blocks for the second caption service; and outputting, by the circuitry, a presentation of the A/V content and the closed caption text for display to a user of the reception apparatus based on the additional data parsed from the caption service blocks for the second caption service. - View Dependent Claims (3, 4, 5, 6)
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7. A non-transitory computer readable medium storing instructions that when executed by a computer causes the computer to perform a method for processing closed caption data, the method comprising:
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receiving audio/video (A/V) content and closed caption data for a first caption service and a second caption service, the closed caption data for the first caption service including closed caption text and the closed caption data for the second caption service including the additional data; extracting caption service blocks from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content; parsing the additional data included in the closed caption data for the second caption service from the caption service blocks for the second caption service; and outputting a presentation of the A/V content and the closed caption text for display to a user of the reception apparatus based on the additional data parsed from the caption service blocks for the second caption service.
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8. A reception apparatus, comprising:
circuitry configured to receive audio/video (A/V) content and closed caption data for a first caption service and a second caption service, the closed caption data for the first caption service including closed caption text and the closed caption data for the second caption service including additional data; extract caption service blocks from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content; parse the additional data included in the closed caption data from the second caption service from the caption service blocks for the second caption service; and output a presentation of the A/V content and the closed caption text for display to a user of the reception apparatus based on the additional data parsed from the caption service blocks for the second caption service. - View Dependent Claims (9, 10, 11, 12)
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13. A method of a transmission apparatus for transmitting additional data, comprising:
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generating, by circuitry of the transmission apparatus, closed caption data for a first caption service and a second caption service, the closed caption data for the first caption service including closed caption text and the closed caption data for the second caption service including the additional data; generating, by the circuitry of the transmission apparatus, a data stream including audio/video (A/V) content and the closed caption data for the first caption service and the second caption service; and transmitting the data stream to a reception apparatus, which extracts caption service blocks from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content.
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14. A transmission apparatus, comprising:
circuitry configured to generate closed caption data for a first caption service and a second caption service, the closed caption data for the first caption service including closed caption text and the closed caption data for the second caption service including additional data; generate a data stream including audio/video (A/V) content and the closed caption data for the first caption service and the second caption service; and transmit the data stream to a reception apparatus, which extracts caption service blocks from the closed caption data for both the first caption service and the second caption service when the first caption service is to be displayed with the A/V content.
Specification