Method and apparatus employing dynamic element matching for...

Details Method and apparatus employing dynamic element matching for... Method and apparatus employing dynamic element matching for...

2009-05-29

2010-12-28

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C348S241000

Reexamination Certificate

active

07858916

ABSTRACT:
An imager having a switching circuit that couples pixel columns to different sample and hold circuits to reduce the noticeability of column-wise fixed pattern noise. A controller randomly couples a pixel column to a sample and hold circuit, therefore fixed pattern noise emanating from a particular sample and hold circuit is not always associated with a single pixel column. Therefore the visual perception of fixed pattern noise associated with a particular sample and hold circuit is reduced.

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