Image-reading apparatus and method

Details Image-reading apparatus and method Image-reading apparatus and method

2008-03-21

2010-12-07

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S461000, C358S474000, C358S496000

Reexamination Certificate

active

07847985

ABSTRACT:
An image-reading apparatus includes a first light-receiving device that receives light reflected from a sheet, a second light-receiving device disposed a predetermined distance from the first light-receiving device along a sheet-transfer direction, a first lighting unit that illuminates a readout position to be read by the first light-receiving device, a second lighting unit that illuminates a readout position to be read by the second light-receiving device, a delay unit that delays one of a first signal output from the first light-receiving device and a second signal output from the second light-receiving device, a correction signal generation unit that generates a correction signal by reference to a difference between the first signal and the second signal, one of which has been delayed by the delay unit, and a correcting unit that corrects for at least one of the first signal and the second signal by using the correction signal.

REFERENCES:
patent: 2004165787 (2004-06-01), None

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