Information reading apparatus, method and system for...

Details Information reading apparatus, method and system for... Information reading apparatus, method and system for...

2004-12-14

2008-12-09

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

C358S463000, C358S474000, C358S475000

Reexamination Certificate

active

07463390

ABSTRACT:
An image reading apparatus detecting scratch and dirt information of a film document without the need for complex structures and complex control in the image reading apparatus. The apparatus can read a transmissive original document and/or a reflective original document. The apparatus includes a first light source that illuminates the transmissive original document, a second light source that illuminates one of the reflective original document and the transmissive original document, an image sensor that generates electronic image data, a detector unit that detects non-image information from the image data, and a correction unit that corrects the image data, based on the non-image information detected by the detector unit.

REFERENCES:
patent: 6195161 (2001-02-01), Edgar
patent: 6660987 (2003-12-01), Koshimizu
patent: 2002/0051248 (2002-05-01), Cook et al.
patent: 05-14721 (1993-01-01), None

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