Multiplied resolution scanner

Details Multiplied resolution scanner Multiplied resolution scanner

2007-03-13

2007-03-13

Lee, Cheukfan (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S486000, C358S497000, C358S483000

Reexamination Certificate

active

10304498

ABSTRACT:
A multiplied resolution, single pass flatbed scanner having a charge-coupled device (CCD) sensor of n pixels with a scan width of W, which gives a subject pixel center to center distance of W
, two independently moveable carriages capable of incremental advancement of W/2n so that for each read of a scan line Y, two reads of all segments of X along the scan line of Y are taken, with each segment of X having a width of half pixel distance, W/2n, and each line Y having a height of half pixel distance, W/2n, to thereby double the resolution.

REFERENCES:
patent: 6147780 (2000-11-01), Chiang
patent: 6603581 (2003-08-01), Lam et al.
patent: 6707583 (2004-03-01), Tsai et al.
patent: 6724505 (2004-04-01), Lin
patent: 6762862 (2004-07-01), Lam et al.

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