High-speed scanner having image processing for improving the...

Facsimile and static presentation processing – Static presentation processing – Attribute control

Reexamination Certificate

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Details

C358S001900, C358S002100, C358S505000, C358S425000, C358S518000, C370S329000

Reexamination Certificate

active

06924909

ABSTRACT:
A scanner for digitizing a document includes a digitizer for digitizing the document into a first color space; a circuit for converting the digitized data into a second color space having a luminance channel and two chrominance channels; a multiplexer having text, approximate actual color of a uniform area and a predetermined color as input for selecting either the text, approximate actual color or the predetermined color as outputs; and multiplexer control input which determines which of the outputs will be selected as actual output based on a uniform area of the document.

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patent: 5903360 (1999-05-01), Honma et al.
patent: 5926292 (1999-07-01), Ishikawa et al.
patent: 6097510 (2000-08-01), Kanno et al.
patent: 6268939 (2001-07-01), Klassen et al.
patent: 6426809 (2002-07-01), Hayashi et al.

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