Patent ID: 7852407
Filing Date: 2010-12-14
Classification: H04N

Abstract:
1. A digital broadcasting receiver comprising: a demultiplexer configured to demultiplex a digital television (DTV) stream to a video stream and a supplementary stream, the supplementary stream including an event information table (EIT) describing an event which has one or more closed captioning services; a controller configured to decode a caption service descriptor providing closed captioning information and being in the EIT; a video parser configured to parse the video stream and output MPEG-2 video data and user data from the parsed video stream; a video decoder configured to decode the MPEG-2 video data; a caption decoder configured to decode caption data in the user data; and a video combiner configured to combine the decoded caption data and the MPEG-2 video data, wherein the caption service descriptor comprises information indicating whether a digital television closed caption service is present in the video stream or a line 21 closed caption service is present in the video stream in accordance with electronic industry association (EIA) 708, and wherein the caption service descriptor further comprises information defining a language associated with a closed caption service.