Active pixel sensor with reduced fixed pattern noise

Details Active pixel sensor with reduced fixed pattern noise Active pixel sensor with reduced fixed pattern noise

2011-07-05

2011-07-05

Giles, Nicholas G (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S241000

Reexamination Certificate

active

07973843

ABSTRACT:
An image sensor includes pixels each of which is designed to transfer charge, accumulated in a photoactive region of the pixel during a first period, through a second active region of the pixel to a power supply node, and to transfer charge, accumulated in the photoactive region during a second period, through the second active region to a sense node in the pixel. Passing charge through the second active region prior to transferring it either to the power supply node or the sense node can help reduce fixed pattern noise. The image sensor can be operated in snap-shot mode.

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