Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1975-05-12
1976-09-28
Richardson, Robert L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
178 75DC, 358 39, H04N 9535, H04N 558
Patent
active
039835758
ABSTRACT:
A control circuit used in a color television receiver for controlling a reproduced picture in response to an ambient light level has a photo-sensitive device, a transistor whose base electrode is connected to the photo-sensitive device, a variable resistor connected in series to the transistor, a voltage controlled contrast control circuit and a voltage controlled color saturation control circuit both controlled by a control voltage obtained at a movable contact of said variable resistor, and a switch connected in parallel to the transistor which is adapted to be manually closed.
REFERENCES:
patent: 3813686 (1974-05-01), Mierzwinski
patent: 3814852 (1974-06-01), Mierzwinski
Akutagawa Tooru
Nagai Kunio
Eslinger Lewis H.
Richardson Robert L.
Sinderbrand Alvin
Sony Corporation
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