Imaging system with gain and error correction circuitry

Details Imaging system with gain and error correction circuitry Imaging system with gain and error correction circuitry

1998-01-02

2000-08-29

Ham, Seungsook

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

348308, H01L 2700

Patent

active

061112429

ABSTRACT:
Imaging system with gain and error correction circuitry particularly suitable for metal-oxide-semiconductor (MOS) image sensors. The correction circuitry allows the analog output signal for an active pixel to substantially track an input signal in the pixel. Voltage dependent distortion and attenuation in the output signal, with respect to the input signal, is minimized, without significantly increasing the size of each pixel.

REFERENCES:
patent: 5471515 (1995-11-01), Fossum et al.
patent: 5877715 (1999-03-01), Gowda et al.
J.E.D. Hurwitz, Peter B. Denyer, Donald J. Baxter, Graham Townsend, "An 800K-Pixel Color CMOS Sensor for Consumer Still Cameras," SPIE vol. 3019, pp. 115-124 (1997).
Sunetra K. Mendis, Sabrina E. Kemeny, Russell C. Gee, Bedabrata Pain, Quiesup Kim and Eric R. Fossum, "Progress in CMOS Active Pixel Image Sensors," SPIE vol. 2172, pp. 19-29 (1994).

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