Image reading apparatus

Details Image reading apparatus Image reading apparatus

2004-10-07

2008-03-11

Tran, Douglas Q. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Specific to image source

C358S450000

Reexamination Certificate

active

07342680

ABSTRACT:
The present invention provides an image reading apparatus capable of reading images with a sufficiently wide dynamic range. An image reading apparatus of this invention has a light source, a reading section which generates image data based on light obtained from an original illuminated with light from the light source, a first level changing section which changes a light receiving level in the reading section in a first manner, a second level changing section which changes the light receiving level in a second manner different from the first manner, a control section in which plural light receiving levels are generated by synergistically changing a light receiving level, and a combining section which combines plural image data obtained by reading an image of an original at plural light receiving levels.

REFERENCES:
patent: 5155596 (1992-10-01), Kurtz et al.
patent: 5932861 (1999-08-01), Iwaguchi et al.
patent: 6657653 (2003-12-01), Nakatsuka et al.
patent: RE39226 (2006-08-01), Lappe
patent: 2003-5545 (2003-01-01), None

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