Delay correction circuit

Details Delay correction circuit Delay correction circuit

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.

REFERENCES:
patent: 3763317 (1973-10-01), Coleman, Jr. et al.
patent: 4301417 (1981-11-01), Jansen et al.
patent: 4595953 (1986-06-01), Willis
patent: 4638360 (1987-01-01), Christopher et al.
patent: 4667240 (1987-05-01), Willis et al.
patent: 4668999 (1987-05-01), De La Cierva, Sr. et al.
patent: 5309111 (1994-05-01), McNeely et al.
patent: 5717469 (1998-02-01), Jennes et al.

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