Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2005-04-13
2009-06-30
Luu, Thanh X (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C348S241000
Reexamination Certificate
active
07554066
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.
REFERENCES:
patent: 5790191 (1998-08-01), Zhang
patent: 6787752 (2004-09-01), Tsai
patent: 2002/0044211 (2002-04-01), Tujii et al.
patent: 2002/0100862 (2002-08-01), Liu
patent: 2002/0154347 (2002-10-01), Funakoshi et al.
patent: 2003/0133625 (2003-07-01), Pain et al.
patent: 2004/0041931 (2004-03-01), Tu et al.
patent: 2004/0159771 (2004-08-01), Yang et al.
patent: 2006/0125940 (2006-06-01), Tinkler et al.
patent: 1 115 244 (2001-07-01), None
Analog Integrated Circuit Design by David Johns, Ken Martin John Wiley & sons; New York 1997 pp. 475-471, 507-509, and 565-576.
Korean Office Action, Jan. 19, 2009.
Aptina Imaging Corporation
Dickstein & Shapiro LLP
Luu Thanh X
LandOfFree
Method and apparatus employing dynamic element matching for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus employing dynamic element matching for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus employing dynamic element matching for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4141055