Method, apparatus, and system providing multi-column shared...

Details Method, apparatus, and system providing multi-column shared... Method, apparatus, and system providing multi-column shared...

2007-07-31

2010-06-29

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C250S208100

Reexamination Certificate

active

07746400

ABSTRACT:
An imager and method of operating an imager employing multi-column shared readout circuitry. Columns of a pixel array are organized into groups, each group having a respective multi-column shared readout circuit. The columns of each group are readout serially but in parallel with the columns of other groups. Each multi-column shared readout circuit may comprise a black level correction clamp, a multi-column analog gain amplifier, a analog-to-digital converter, a digital offset correction block, and a digital gain calibration block. A single-column analog gain amplifier may amplify an analog pixel signal value of each column prior to processing by a respective multi-column shared readout circuit.

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International Search Report (4 pages).

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