Signal processing circuit of solid state image pickup device

Details Signal processing circuit of solid state image pickup device Signal processing circuit of solid state image pickup device

1986-09-10

1987-12-08

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821319, H04N 5335

Patent

active

047121360

ABSTRACT:
There is a solid state image pickup device having a signal voltage output circuit to output a charge signal as voltage information through a charge-voltage converter and a correction voltage output circuit to generate a reference voltage into which no signal charge is input and which has a circuit arrangement similar to the signal voltage output circuit. The invention intends to provide a signal processing circuit of such a solid state image pickup device in which the output of the correction voltage output circuit is provided with a time constant circuit, and this signal processing circuit consists of a differential amplifier to amplify the difference between the correction voltage output derived through the time constant circuit and the output of the signal voltage output circuit.

REFERENCES:
patent: 4500924 (1985-02-01), Ohta
patent: 4511804 (1985-04-01), Ozawa
patent: 4600843 (1986-07-01), Kizu
patent: 4623927 (1986-11-01), Hoshino
patent: 4635126 (1987-01-01), Kinoshita

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