Active cell with analog storage for a CMOS technology...

Details Active cell with analog storage for a CMOS technology... Active cell with analog storage for a CMOS technology...

2005-01-04

2005-01-04

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100, C257S297000

Reexamination Certificate

active

06838652

ABSTRACT:
An active cell for a photosensitive sensor that includes photosensitive diode in which the transistors of the cell are implemented using CMOS technology. The cell operates with an exposure phase in which the quantity of light impinging on the cell is detected followed by a scanning phase during which the luminance information caused by the impinging light is extracted from the cell. The cell is arranged in such a way to virtually completely isolate the charge accumulation node from the remainder of the cell after the exposure phase to eliminate stray accumulation of charge carriers.

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patent: WO9319489 (1993-09-01), None
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A 128×128-Pixel Standard—CMOS Image Sensor With Electronic Shutter, by Chye Huat AW and Bruce A. Wooley,Fellow, IEEE,IEEE Journal of Solid-State Circuits, vol. 31, No. 12, Dec. 1996.

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