Correlated double sampling circuit, method thereof and devices having the same
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United States of America Patent
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Jun 3, 2014
Grant Date -
May 31, 2012
app pub date -
Sep 21, 2011
filing date -
Nov 29, 2010
priority date (Note) -
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Abstract
A CDS circuit is provided. The CDS circuit includes a signal compressor which compresses each of a pixel signal and a ramp signal using capacitive dividing and outputs a compressed pixel signal and a compressed ramp signal, and a comparator which compares the compressed pixel signal with the compressed ramp signal and outputs a comparative signal corresponding to a comparison result.
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