Dual gain column structure for column power area efficiency

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12249999
APP PUB NO 20240283460A1
SERIAL NO

18171211

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Abstract

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A pixel cell readout circuit comprises a ramp generator having a ramp generator output. A first gain network is coupled to the ramp generator output and configured to provide a first variable comparator gain. A second gain network is coupled to the ramp generator output and configured to provide a second variable comparator gain. A first comparator has a first input coupled to the first gain network. The first comparator further has a second input selectively coupled to a first bitline and selectively coupled to a second bitline. A second comparator has a first input coupled to the second gain network. The second comparator further has a second input selectively coupled to the first bitline and selectively coupled to the second bitline.

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Patent Owner(s)

Patent OwnerAddress
OMNIVISION TECHNOLOGIES INC4275 BURTON DRIVE SANTA CLARA CA 95054

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebihara, Hiroaki San Jose, US 80 436
Wang, Rui San Jose, US 821 4323

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