Solid state imaging apparatus

Details Solid state imaging apparatus Solid state imaging apparatus

1989-03-13

1991-04-23

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 34, 358 41, 358 98, 358172, 358178, A61B 104, H04N 518

Patent

active

050103954

ABSTRACT:
The solid state imaging apparatus having a black level correcting circuit of this invention has an imaging device provided with a solid state imaging device and a signal processing device connected to this imaging device, processing the picture image signal obtained by the solid state imaging device and outputting a video signal. The signal processing device is provided with a gain controlling amplifier receiving the photoelectrically converted output of the solid state imaging device and variably gain-controlling it and a direct current-clamping circuit direct current-clamping the optical black part included in the output signal of the solid state imaging device and stabilizing the black level of the video signal.

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patent: 4928172 (1990-05-01), Uehara

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