System for digitally transmitting and displaying data on television receiver screen
Method of storing and editing data in a television system and apparatus therefor Patent #: 5181113
ApplicationNo. 275332 filed on 07/14/1994
US Classes:348/476, During sync, blanking, or overscan348/478During vertical blanking
ExaminersPrimary: Kostak, Victor R.
Assistant: Flynn, Nathan J.
Attorney, Agent or Firm
Foreign Patent References
International ClassH04N 007/087
AbstractAn apparatus for providing close captioning in a digital program services delivery system comprises: a rate converter circuit for receiving video codes and outputting video data; a video decoder circuit for receiving the video data and outputting digital Y, U, V data; a digital to analog converter/analog encoder circuit for converting the Y, U, V data into an analog video signal in a prescribed format; a line 21 former circuit for receiving close captioning digital data and forming a line 21 analog signal; and a multiplexor for inserting the line 21 analog signal into the analog video signal.