Clock signal generating apparatus and clock signal generating me

Details Clock signal generating apparatus and clock signal generating me Clock signal generating apparatus and clock signal generating me

1997-02-26

1998-11-03

Grant, Chris

Television

Synchronization

Sync separation

348537, H04N 521, H04N 512

Patent

active

058316833

ABSTRACT:
An apparatus and method for generating a clock signal phase-locked to a horizontal synchronization signal of a digital video signal in which noise superposed on the horizontal synchronization signal is eliminated or reduced. To eliminate or reduce such noise, a noise suppressing device located prior to a phase comparator may be utilized. Such noise suppressing block may include a slice circuit and/or a spike removing circuit.

REFERENCES:
patent: 3740470 (1973-06-01), Rhee
patent: 4496978 (1985-01-01), Sakamoto et al.
patent: 4707740 (1987-11-01), Stratton
patent: 4775890 (1988-10-01), Balaban et al.
patent: 4905085 (1990-02-01), Faulhaber
patent: 5568201 (1996-10-01), Matsumoto
patent: 5657089 (1997-08-01), Onagawa

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