Self-triggered X-ray sensor
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United States of America Patent
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Mar 23, 1999
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N/A
app pub date -
Aug 5, 1997
filing date -
Nov 12, 1996
priority date (Note) -
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Abstract
An imaging pixel array with event detectors for detecting input light signals and activating the imaging pixel array based on a predetermined threshold intensity of an input light. Each event detector is preferably made of auxiliary photosensitive pixels with a thresholding circuit. The imaging pixel array is activated to perform signal integration if the input light signal is above the threshold intensity. A self-triggered X-ray sensor can be realized with such event detectors. A CMOS active pixel sensor can be used as the imaging pixel array with advantages.
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