Optical scanner

Details Optical scanner Optical scanner

2007-07-24

2007-07-24

Lee, Cheukfan (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S497000, C358S461000, C358S527000

Reexamination Certificate

active

10812076

ABSTRACT:
An optical scanner includes a first reference white board and a second reference white board perpendicular to two sides of a glass window that holds an object to be scanned. When the optical scanner is powered on, the optical module scans the first reference white board and the second reference white board to obtain data of image quality test and brightness variations in Y direction first, and through software compensation and correction, to obtain a normal digital image data thereby to achieve rapid preview and scanning.

REFERENCES:
patent: 6229627 (2001-05-01), Taguchi et al.
patent: 6747765 (2004-06-01), Kitamura et al.
patent: 2001230910 (2001-08-01), None

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