An apparatus and method for combining digital information with at video stream and for using the digital information to modify or augment video frames in the video stream is disclosed. The apparatus for decoding a video stream comprises a video receiver configured to receive a video stream, the video...http://www.google.com/patents/US6141693?utm_source=gb-gplus-sharePatent US6141693 - Method and apparatus for extracting digital data from a video stream and using the digital data to configure the video stream for display on a television set
