H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 21/431 (2011.01) H04N 5/445 (2011.01)
Patent
CA 2736071
A digital broadcast receiver includes a demultiplexer for demultiplexing a digital television (DTV) stream to a video stream and a supplementary steam, where the supplementary stream includes an Event information table (EIT) describing an event which has one or more closed captioning services. The receiver includes a controller for decoding a caption service descriptor providing closed captioning information and which is in the EIT, the descriptor comprising information that indicates whether a digital television closed caption service or a line 21 closed caption service is present in the video stream. The receiver further includes a video parser for parsing the video stream and outputting MPEG-2 video data and user data from the parsed video stream, a video decoder for decoding the MPEG-2 video data, a caption decoder for decoding caption data in the user data and a video combiner for combining the decoded caption data and MPEG-2 video data.
Lg Electronics Inc.
Smart & Biggar
LandOfFree
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