Television – Synchronization – Automatic phase or frequency control
Patent
1996-09-20
1999-10-05
Peng, John K.
Television
Synchronization
Automatic phase or frequency control
358409, H04N 504
Patent
active
059632674
ABSTRACT:
A delay correction circuit includes a source of a clock signal and a source of a timing signal asynchronous with the clock signal. A timing signal detector is responsive to the clock signal and the timing signal, and is properly operative only when the timing signal is stable for a predetermined time period around the clock signal. A control circuit conditions utilization circuitry to operate after a delay time after the timing signal is detected. Adjusting circuitry conditions the control circuit to adjust the delay time if the timing signal was not stable within the predetermined time period.
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Chu D.C. Peter
Emanuel Peter M.
Peng John K.
Shedd Robert D.
Thomson Consumer Electronics Inc.
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