Circuit structure for providing conversion gain of a pixel array
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United States of America Patent
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Jul 14, 2015
Grant Date -
Aug 21, 2014
app pub date -
Feb 21, 2013
filing date -
Feb 21, 2013
priority date (Note) -
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Abstract
Techniques and mechanisms for a pixel array to provide a level of conversion gain. In an embodiment, the pixel array includes conversion gain control circuitry to be selectively configured at different times for different operational modes, each mode for implementing a respective conversion gain. The conversion gain control circuitry selectively provides switched coupling of the pixel cell to—and/or switched decoupling of the pixel cell from—a supply voltage. In another embodiment, the conversion gain control circuitry selectively provides switched coupling of the pixel cell to—and/or switched decoupling of the pixel cell from—sample and hold circuitry.
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