Digital integrated chrominance-channel circuit with gain control

Details Digital integrated chrominance-channel circuit with gain control Digital integrated chrominance-channel circuit with gain control

1983-04-20

1985-09-03

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 9535

Patent

active

045395837

ABSTRACT:
An improved digital integrated chrominance-channel circuit having gain control for color-television receivers includes at least one integrated circuit for digitally processing the composite color signal. The circuit includes a first limiter inserted between a parallel multiplier and a burst-amplitude-measuring stage, and a control stage including a parallel subtracter whose minuend input is fed with a reference signal, and whose subtrahend input is connected to the output of the burst-amplitude-measuring stage. A digital accumulator whose enable input is presented with a signal derived from the trailing edge of a burst gating signal is used as an integrator.

REFERENCES:
patent: 4419688 (1983-12-01), Miskin et al.

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