H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/30
H04N 7/04 (2006.01) H04N 5/60 (2006.01) H04N 7/167 (2006.01)
Patent
CA 1328917
ABSTRACT A television transmission system replaces the standard FM audio portion of a television signal with digital audio. Three digital audio channels are time division multiplexed on the sound carrier, using combined multi-phase and AM modulation. The audio signals are digitized using adaptive delta modulation techniques. Video vertical and horizontal framing, as well as the audio carrier phase reference, audio data bit time and frame reference, and various control data is carried using AM modulation. The digital audio information is carried using multi-phase modulation. The composite data stream may be serially encrypted to provide security and prevent unauthorized reproduction of the video and/or audio portions of the television signal.
560315
General Instrument Corporation
Ridout & Maybee Llp
LandOfFree
Apparatus and method for providing digital audio on the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for providing digital audio on the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for providing digital audio on the... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1238833