Active pixel sensor with noise cancellation
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United States of America Patent
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-
Sep 6, 2005
Grant Date -
Mar 28, 2002
app pub date -
Sep 24, 2001
filing date -
Sep 25, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A CMOS active pixel sensor with noise reduction employs a photodetector. A reset switch is coupled between a reset potential line and the photodetector and is controlled by a reset line. An amplifier is coupled to the photodetector. A kTC noise reducing circuit is disposed within the pixel sensor. A readout circuit is coupled to the kTC noise reducing circuit and is controlled by a row-select line.
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