Image capturing apparatus and method of controlling the same
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United States of America Patent
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Apr 12, 2016
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N/A
app pub date -
Mar 25, 2014
filing date -
Apr 10, 2013
priority date (Note) -
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Abstract
An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.
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