Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1990-12-28
1992-07-28
Peng, John K.
Facsimile and static presentation processing
Facsimile
Recording apparatus
35821327, 35821329, 35821331, 250211J, H04N 5335
Patent
active
051344890
ABSTRACT:
An X-Y addressable imager utilizes a gate connection of a source-follower-connected MOSFET to isolate inherent capacitance of each horizontal signal line of the imager from a vertical signal line that couples the MOSFETs to a common output circuit, including a load resistor for the source followers. In one embodiment the horizontal signal lines are assigned to different groups, and each group is coupled through a different one of plural vertical signal lines to the common output circuit. At least one multiplexer couples one vertical signal line at a time to the common output circuit. Also shown is imager array scanning logic for effecting variable integration of array pixels.
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D. J. Sauer et al., "A 640.times.480-Element PtSi IR Sensor with Low-Noise MOS X-Y Addressable Multiplexer", Apr. 18, 1990, Paper No. 1308-07, SPIE 1990 Technical Symposium on Optical Engineering and Photonics in Aerospace Sensing, Orlando, FL.
Burgess Glenton B.
Burke William J.
David Sarnoff Research Center Inc.
Peng John K.
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