Active pixel sensor with capacitorless correlated double sampling
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United States of America Patent
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Mar 18, 2003
Grant Date -
N/A
app pub date -
May 19, 1998
filing date -
May 19, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An imager pixel including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier, a second MOS transistor functioning as a pixel readout transistor, and a third transistor performing a dual function to reset the photodetector during a first time interval and cancel reset noise by serving as a weak current source during a second time interval.
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