Pixel-by-pixel digital control of gain and offset correction...

Details Pixel-by-pixel digital control of gain and offset correction... Pixel-by-pixel digital control of gain and offset correction...

2006-05-02

2006-05-02

Vu, Ngoc-Yen (Department: 2612)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S243000, C348S229100, C348S255000

Reexamination Certificate

active

07038720

ABSTRACT:
A method and apparatus for adjusting, on a pixel-by-pixel basis, the gain and offset in an AFE as the pixels are sequentially processed. Although the method can be used for any purpose, it is directed in particular to light source non-linearity, such as edge effects of a scanner. A unique clocking method clocks the gain and offset values into the register at a higher clock rate than the image sampling rate.

REFERENCES:
patent: 5499112 (1996-03-01), Kawai et al.
patent: 5808295 (1998-09-01), Takeda et al.
patent: 6166766 (2000-12-01), Moore et al.
patent: 6174649 (2001-01-01), Park et al.
patent: 6252536 (2001-06-01), Johnson et al.
patent: 6299329 (2001-10-01), Mui et al.
patent: 6342919 (2002-01-01), Opris
patent: 6346968 (2002-02-01), Domer et al.
patent: 6357904 (2002-03-01), Kawashima
patent: 6747697 (2004-06-01), Lin et al.
patent: 6753913 (2004-06-01), Bilhan et al.
patent: 6774941 (2004-08-01), Boisvert et al.
Buckley, Kevin. “Selecting an Analog Front-End for Imaging Applications”; Analog Dialogue, www.analog.com, vol. 34 No. 06, Oct. 2000.
“XRD98L61, CCD Image Digitizers with CDS, PGA and 12-Bit A/D,” product data sheet, Exar Corporation 48720 Kato Road Fremont, CA 94538 (2001).
“XRD98L63, CCD Image Digitizers with CDS, PGA and 12-Bit A/D,” product data sheet, Exar Corporation 48720 Kato Road Fremont, CA 94538 (2002).

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