High flux detection and imaging using capacitor transimpedance amplifier (CTIA)-based unit cells in imaging devices

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United States of America Patent

PATENT NO 12206369
APP PUB NO 20240267006A1
SERIAL NO

18165713

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus includes a photodetector configured to generate an electrical current based on received illumination. The apparatus also includes a capacitor transimpedance amplifier (CTIA) unit cell configured to generate an integration voltage based on the electrical current. The CTIA unit cell includes (i) an amplifier configured to receive the electrical current and a first reference voltage, (ii) a feedback capacitor coupled in parallel across the amplifier, and (iii) a reset switch coupled in parallel across the feedback capacitor. The apparatus further includes a comparator configured to compare an input voltage of the amplifier and a second reference voltage, where generation of the integration voltage is modifiable based on the comparison.

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Patent Owner(s)

Patent OwnerAddress
RAYTHEON COMPANY870 WINTER STREET WALTHAM MA 02451-1449

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kean, Bryan W Denver, US 14 24

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