Solid-state image sensor circuit

Details Solid-state image sensor circuit Solid-state image sensor circuit

1987-12-15

1989-03-21

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

35821316, H04N 5217

Patent

active

048148814

ABSTRACT:
A solid-state image sensor circuit includes a solid-state image sensor, an optical system, an amplifier, a hold circuit, and an A/D converter. In the solid-state image sensor, some of light-receiving elements are shielded from light. The optical system forms an image on the solid-state image sensor. The amplifier amplifies an output from the solid-state image sensor. The hold circuit holds an output from a shielded portion of the solid-state image sensor. The A/D converter A/D-converts an output voltage from the hold circuit using the output from the amplifier as a lowest analog reference voltage.

REFERENCES:
patent: 3800078 (1974-03-01), Cochran et al.
patent: 4525741 (1985-06-01), Chahal et al.

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