Chroma signal amplitude control apparatus

Details Chroma signal amplitude control apparatus Chroma signal amplitude control apparatus

1984-10-24

1987-01-06

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 968

Patent

active

046351027

ABSTRACT:
A chroma overload system includes an up/down counter to develop a chroma gain/attenuation signal. Overload conditions are detected and responsive thereto pulses are generated to cause the counter to decrease chroma gain. In the absence of overload conditions, a pulse generator conditions the up/down counter to increase chroma gain to a predetermined limit. ACC is incorporated by monitoring burst and establishing the counting range and thereby the range of gain developed by the up/down counter.

REFERENCES:
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patent: 3943560 (1976-03-01), Freestone
patent: 3967313 (1976-06-01), Miyamoto
patent: 4106054 (1978-08-01), Tzakis
patent: 4106055 (1978-08-01), Burdick et al.
patent: 4183047 (1980-01-01), Kim et al.
patent: 4349834 (1982-09-01), Tonomura et al.
patent: 4447826 (1984-05-01), Lewis, Jr. et al.
patent: 4523223 (1985-06-01), Luder et al.

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