Pixel sensor with charge evacuation element and systems and...

Details Pixel sensor with charge evacuation element and systems and... Pixel sensor with charge evacuation element and systems and...

2007-05-01

2007-05-01

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100, C348S308000

Reexamination Certificate

active

10485707

ABSTRACT:
The pixel includes a reset element (350) used in relation to charging a light sensitive element (390). Further, the pixel includes a charge evacuation element (380) for dissipating charge build up about the reset element. Dissipation of the charge results in a reduction of noise at the output of the pixel.

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patent: 6046444 (2000-04-01), Afghahi
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patent: 6350663 (2002-02-01), Kopley et al.
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patent: 2005/0128325 (2005-06-01), Fraenkel et al.
Tian et al.,“Analysis of Temporal Noise in CMOS Photodiode Active Pixel Sensor” IEEE Journal of Solid State Circuits, vol. 36, No. 1, Jan. 2001.
Fossum, “CMOS Image Sensors: Electronic Camera-On-A-Chip” IEEE Transactions on Electronic Devices, vol. 44, No. 10, Oct. 1997.

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