Resettable pixel amplifier for an image sensor array

Details Resettable pixel amplifier for an image sensor array Resettable pixel amplifier for an image sensor array

1994-10-28

1996-02-20

Rogers, Scott A.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358463, 348241, 348248, 348294, 348300, H04N 104, H04N 312, H04N 314

Patent

active

054934230

ABSTRACT:
In an input scanner for recording hard-copy images by exposing areas of the image to an array of photosensors, a system ensures sensor array uniformity. With each cycle of passing a discrete image signal through an amplifier associated with each photosensor, a low standby current is applied to certain transistors within the amplifier until the next signal is to be output. Critical nodes within the amplifier are caused to settle to known charge values before each image signal is passed therethrough.

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patent: 5027148 (1991-06-01), Anagnostopoulos
patent: 5081536 (1992-01-01), Tandon et al.
patent: 5142286 (1992-08-01), Ribner et al.
patent: 5144447 (1992-09-01), Akimoto et al.
patent: 5172249 (1992-12-01), Hashimoto
patent: 5311319 (1994-05-01), Moroi
patent: 5321528 (1994-06-01), Nakamura

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