Solid state image sensor having low and high level signal compon

Details Solid state image sensor having low and high level signal compon Solid state image sensor having low and high level signal compon

1990-05-23

1991-10-22

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821316, H04N 314

Patent

active

050600702

ABSTRACT:
A solid state image sensor comprises a CCD type image sensing device and a signal detector. This signal detector comprises an FDA type signal detection circuit connected to a signal pick-up terminal of the image sensing device and having a small amount of saturating signals and low noise, an FDA type signal detection circuit connected to the signal pick-up terminal and having a large amount of saturating signals and high noise, and a signal composing circuit for composing the outputs of both signal detection circuits and outputting a composed output and changing a composing ratio in accordance with the output of the FDA type signal detection circuit.

REFERENCES:
patent: 4495523 (1985-01-01), Ozawa
patent: 4574309 (1986-03-01), Arisawa et al.
patent: 4589024 (1986-05-01), Koch
patent: 4839729 (1989-06-01), Ando et al.
patent: 4902886 (1990-02-01), Smisko
patent: 4974093 (1990-11-01), Murayama et al.
"A High Sensitivity Output Amplifier for CCD Image Sensor" Y. Matsunaga et al., pp. 116-119.

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