Solid-state image sensor with improved dark current removal

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United States of America Patent

PATENT NO 11477402
APP PUB NO 20210029314A1
SERIAL NO

17045486

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To improve the correction accuracy in a solid-state image sensor that performs dark current correction. A solid-state image sensor includes a bias voltage supply unit and a signal processing unit. The bias voltage supply unit supplies a bias voltage of a predetermined value to a light-shielded pixel impervious to light in a period in which a light-shielded pixel signal is output from the light-shielded pixel, and supplies a bias voltage of a value different from the predetermined value to a photosensitive pixel not impervious to light in a period in which a photosensitive pixel signal is output from the photosensitive pixel. The signal processing unit executes processing of removing dark current noise from the photosensitive pixel signal using the light-shielded pixel signal.

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Patent Owner(s)

  • SONY SEMICONDUCTOR SOLUTIONS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sekiguchi, Tomohiro Kanagawa, JP 42 214
Urushihara, Minoru Kanagawa, JP 7 13

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