Image sensor and image capturing apparatus

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United States of America Patent

PATENT NO 8963758
APP PUB NO 20140016010A1
SERIAL NO

13929282

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Abstract

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An image sensor includes a pixel region in which a plurality of pixels are arranged in a row direction and a column direction. An A/D conversion circuit, arranged for each column, which compares an input signal with a ramp signal that changes with temporal unidirectionality, and converts the input signal into digital data. The sensor includes an amplitude control unit configured to compare the pixel signal with a predefined reference voltage, and input, to the A/D conversion circuit, the pixel signal if the pixel signal has a voltage less than the reference voltage, or a signal obtained by reducing an amplitude of the pixel signal if the pixel signal has a voltage of not less than the reference voltage, and a data expansion unit configured to add a predetermined number of bits to an A/D-converted data.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Uchida, Mineo Kawasaki, JP 29 190

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