Current-mediated active-pixel image sensing device with current

Details Current-mediated active-pixel image sensing device with current Current-mediated active-pixel image sensing device with current

1996-02-06

1999-07-13

Moore, David K.

Image analysis

Image sensing

257291, 257292, 25037001, G06K 700

Patent

active

059237945

ABSTRACT:
An image sensing device comprising active pixels is disclosed, each pixel having a charge accumulation region for collecting charges generated by a photosensitive element such as a photodiode. Fixed pattern noise is minimized by utilizing a reference current to reset the pixels and to generate an output current signal.

REFERENCES:
patent: 4407010 (1983-09-01), Baji et al.
patent: 4445117 (1984-04-01), Gaalema et al.
patent: 4463383 (1984-07-01), Soneda et al.
patent: 5477489 (1995-12-01), Weidmann
"Progress in CMOS Active Pixel Inage Sensors," Sunetra K. Mendis et al., Proceedings of the SPIE, vol. 2172, Charge-Coupled Devices and Solid State Optical Sensors IV (1994).

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