Image sensor for detecting flicker noise and method thereof
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United States of America Patent
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Sep 2, 2008
Grant Date -
N/A
app pub date -
Sep 2, 2010
filing date -
Apr 27, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An image sensor has improved functions so as to automatically eliminate a flicker noise. For the purpose, the image sensor includes a pixel array for capturing information about an image provided from the outside and having N pixel rows and M pixel columns for maximizing a feature of reacting to light, wherein M and N are integers, respectively, a flicker noise detective pixel unit containing X pixel rows, which has a form extended from the N pixel rows of the pixel array, and M pixel columns, wherein each pair of X pixel rows has an identical exposure time and X is an even number, and a flicker noise for controlling an exposure point for the flicker noise detective pixel unit and detecting the flicker noise by using outputs of the flicker noise detective pixel unit.
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