Photoelectric conversion device, substrate, and equipment comprising a circuit to determine an internal temperature of the photoelectric conversion device based on a current following in a resistive element

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United States of America Patent

PATENT NO 11688755
APP PUB NO 20220302199A1
SERIAL NO

17693521

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Abstract

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A photoelectric conversion device includes a light receiving circuit configured to convert light into an electrical signal, a first hold circuit configured to hold a data signal which represents the electrical signal, a second hold circuit configured to hold a noise signal read out from the light receiving circuit in a reset state, a first resistive element to which a voltage corresponding to a difference between the data signal held by the first hold circuit and the noise signal held by the second hold circuit is applied, an A/D converter configured to convert an analog current flowing in the first resistive element into digital data, a second resistive element, and a temperature detection circuit configured to generate, based on a current flowing in the second resistive element, an analog output corresponding to an internal temperature of the photoelectric conversion device.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Hideo Tokyo, JP 416 4477

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