Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2007-06-26
2007-06-26
Nguyen, Madeleine A V (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S514000, C358S529000
Reexamination Certificate
active
10285468
ABSTRACT:
An image reading apparatus includes an imaging unit which has a plurality of channels and which, for the channels, outputs effective signals output from photo-receiving sections for receiving light from a subject, and optical black signals output from light-shielding sections in which the light from the subject is shielded. The image reading apparatus also includes a monitoring unit for monitoring the optical black signal output from the imaging unit, a correcting unit for performing shading correction on the signals output from the imaging unit, and a controller for controlling timing with which the shading correction by the correcting unit is performed. In an image reading method for the apparatus, the shading correction is performed in response to a job start signal, and based on an optical black signal monitored thereafter, the shading correction is performed again.
REFERENCES:
patent: 4644403 (1987-02-01), Sakai et al.
patent: 5070414 (1991-12-01), Tsutsumi
patent: 5703696 (1997-12-01), Sakai et al.
patent: 5726779 (1998-03-01), Kadowaki et al.
patent: 5748335 (1998-05-01), Honma et al.
patent: 5926579 (1999-07-01), Uejo et al.
patent: 5940125 (1999-08-01), Suganuma
patent: 5946112 (1999-08-01), Kobayashi
patent: 6084634 (2000-07-01), Inagaki et al.
patent: 6118895 (2000-09-01), Hirota et al.
patent: 6121994 (2000-09-01), Kuribayashi et al.
patent: 6337713 (2002-01-01), Sato
patent: 6700609 (2004-03-01), Abe
patent: 6721009 (2004-04-01), Iizuka
patent: 6791615 (2004-09-01), Shiomi et al.
patent: 7050098 (2006-05-01), Shirakawa et al.
patent: 02-224467 (1990-09-01), None
patent: 02-254855 (1990-10-01), None
patent: 05-236274 (1993-09-01), None
patent: 09-163077 (1997-06-01), None
patent: 2001-223895 (2001-08-01), None
U.S. Appl. No. 10/021,246, filed Sep. 19, 2001.
U.S. Appl. No. 10/267,643, filed Oct. 10, 2002.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Nguyen Madeleine A V
LandOfFree
Image reading apparatus, image forming system, image reading... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image reading apparatus, image forming system, image reading..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image reading apparatus, image forming system, image reading... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3853482