Method and apparatus for accurately recovering the synchronizati

Details Method and apparatus for accurately recovering the synchronizati Method and apparatus for accurately recovering the synchronizati

1998-09-04

2000-10-10

Peng, John K.

Television

Synchronization

Sync separation

348530, 348531, H04N 510

Patent

active

06130719&

ABSTRACT:
A method of recovering synchronization signals contained in a composite video signal. The synchronization signals are generally represented by voltage levels less than the blanking level of the video signal, and display data is represented by blanking level. A digital circuit controls a biasing circuit to generate a biasing voltage. A video signal is biased using the biasing voltage and the resulting biased video signal is provided as an input to an operational amplifier. A second input of the operational amplifier is driven by a reference voltage. The digital circuit monitors the output of the operational amplifier and controls the biasing voltage to cause the operational amplifier to clip the display data from the biased video signal and generate a signal representing synchronization signals.

REFERENCES:
patent: 4707740 (1987-11-01), Stratton
patent: 4812907 (1989-03-01), Hathaway
patent: 4853782 (1989-08-01), Asano et al.
patent: 4859872 (1989-08-01), Hyakutake
patent: 5027017 (1991-06-01), Fling
patent: 5053869 (1991-10-01), Pletz-Kirsch
patent: 5191422 (1993-03-01), Cho et al.
patent: 5280356 (1994-01-01), Hiramatsu et al.
patent: 5345117 (1994-09-01), Tomotsume
patent: 5436667 (1995-07-01), Logoni et al.
patent: 5805150 (1998-09-01), Nishino et al.
patent: 5929900 (1999-07-01), Yamanaka et al.

Affiliated with

Also associated with

Rating

Method and apparatus for accurately recovering the synchronizati does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for accurately recovering the synchronizati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for accurately recovering the synchronizati will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2260673