Circuit for the reading of linear arrays of photodetectors
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United States of America Patent
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Dec 7, 1999
Grant Date -
N/A
app pub date -
Jul 16, 1997
filing date -
Jul 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The read circuit can be applied to optomechanical scanning imaging devices. The circuit is designed for the reading of batteries of photodetectors comprising a specified number N of detection channels, each constituted by N.sub.d sensors positioned in the scanning direction, such that each point of an image is successively analyzed by N.sub.d sensors of a channel. The circuit includes a current summation scale, associated with each detection channel, formed by a specified number M of current summation circuits and coupled to the detection channel by means of a voltage-current conversion device. Application to the thermal imaging devices.
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