Apparatus for the demodulation of a carrier chrominance signal i

Details Apparatus for the demodulation of a carrier chrominance signal i Apparatus for the demodulation of a carrier chrominance signal i

1992-07-02

1994-05-24

Powell, Mark R.

Television

Image signal processing circuitry specific to television

Color television signal processing

348609, 348624, H04N 964, H04N 966

Patent

active

053153790

ABSTRACT:
A color signal processing device for processing a carrier chrominance signal is arranged to produce a first sampling signal by sampling the carrier chrominance signal according to a sampling clock signal synchronized with a reference phase of the carrier chrominance signal and a second sampling signal which is of a sampling phase opposite to that of the first sampling signal and to form baseband signals conforming to a color signal by using the first and second sampling signals. This arrangement enables the device to process the color signal without causing any signal deterioration that tends to result from DC fluctuations of the carrier chrominance signal.

REFERENCES:
patent: 4727361 (1988-02-01), Tokumitsu
patent: 4745463 (1988-05-01), Lu
patent: 5063437 (1991-11-01), Owashi et al.
patent: 5132785 (1992-07-01), Choi

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