Solid state image pickup device

Details Solid state image pickup device Solid state image pickup device

2008-11-21

2011-11-08

Selby, Gevell (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S302000, C348S306000

Reexamination Certificate

active

08054358

ABSTRACT:
This invention improves linearity of a solid-state image pickup device beyond that of the prior art source follower to improve image quality. The image pickup device has plural pixels disposed in an array. Each pixel includes: a photodiode (PD); a transfer transistor (Tr1); a floating diffusion (FD); and an amplification transistor (Tr4). A compensating circuit has an amplifier (AP) receiving the output of the amplification transistor (Tr4), and a compensating transistor (M2) matched to the pixel amplification transistor (Tr4). Compensation is provided using negative feedback in the amplifier (AP).

REFERENCES:
patent: 6831685 (2004-12-01), Ueno et al.
patent: 2002/0134918 (2002-09-01), Miida
patent: 2008/0062296 (2008-03-01), Ogura et al.
patent: 2008/0303058 (2008-12-01), Mori et al.
patent: 05-090556 (1993-04-01), None
patent: 2000-165754 (2000-06-01), None
patent: 2002-077737 (2002-03-01), None
patent: 2003-134396 (2003-05-01), None
patent: 2005-083790 (2005-03-01), None
patent: 2006-217410 (2005-08-01), None
patent: 2005-328493 (2005-11-01), None

Affiliated with

Also associated with

Rating

Solid state image pickup device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid state image pickup device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state image pickup device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4303264