Solid-state imaging device, imaging apparatus, and ad conversion gain adjusting method
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United States of America Patent
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Apr 23, 2013
Grant Date -
Apr 1, 2010
app pub date -
Sep 30, 2009
filing date -
Oct 1, 2008
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Abstract
A solid-state imaging device includes: a pixel unit in which unit pixels outputting processing target signals are arranged in a horizontal direction and scanning lines are wired such that the processing target signals can be read out in order in a vertical direction within a repetition unit of an array of the unit pixels in the horizontal direction; an AD conversion unit including comparing units that compare a reference signal supplied from a reference-signal generating unit and the processing target signals, and counter units that perform count operation, the AD conversion unit performing AD conversion processing based on output data of the counter units; and a driving control unit that performs control to read out the processing target signals in order in the vertical direction and controls the reference-signal generating unit and the AD conversion unit such that AD conversion gains are individually adjusted in order to correct an output amplitude characteristic difference within the repetition unit during AD conversion processing.
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