Facsimile and static presentation processing – Natural color facsimile – Scanning
Reexamination Certificate
2006-07-04
2006-07-04
Lee, Cheukfan (Department: 2627)
Facsimile and static presentation processing
Natural color facsimile
Scanning
C358S475000, C358S482000, C358S483000, C358S514000
Reexamination Certificate
active
07072083
ABSTRACT:
In an image reading apparatus for reading an original image using a light source containing a plurality of color components, a control pulse for dimming the light source is generated by pulse-width modulation symmetrically with respect to a reference timing (for example, the central position in one storage time or the storage start timing) in one predetermined storage time of a line sensor.
REFERENCES:
patent: 4642679 (1987-02-01), Nagano
patent: 4731661 (1988-03-01), Nagano
patent: 5278674 (1994-01-01), Webb et al.
patent: 5450215 (1995-09-01), Iwama
patent: 5625470 (1997-04-01), Ueta et al.
patent: 5920408 (1999-07-01), Nagano
patent: 6084692 (2000-07-01), Ohtani et al.
patent: 6181442 (2001-01-01), Ogura et al.
patent: 6545777 (2003-04-01), Amimoto
patent: 6552829 (2003-04-01), Maciey et al.
patent: 0 158 962 (1985-10-01), None
patent: 000973327 (2002-01-01), None
patent: 02000069232 (2000-03-01), None
patent: 02000209399 (2000-07-01), None
patent: 02000050017 (2002-02-01), None
patent: 02000050018 (2002-02-01), None
patent: 02000069225 (2002-03-01), None
patent: 02000069227 (2002-03-01), None
U.S. Appl. No. 09/377,562 (filed Aug. 19, 1999) entitled “Image Reading Apparatus and Control Method Thereof.”
Derwent Acct. No. 2000-263805, “Image reader has pulse width modulator to reduce central deviation of each color based on amount of light emitted from fluorescent lamp”, Derwent-Week 200023 (Mar. 3, 2000).
Derwent Acct. No. 2001-251005, “Image reader has determination unit which updates control value used to center light emitted from fluorescent lamp around preset position.” Derwent-Week 200126 (Feb. 16, 2001).
English Abstract of JP 02000209399.
English Abstract of JP02000069232A.
English Abstract of JP02000069227A.
English Abstract of JP02000069225A.
English Abstract of JP02000050018A.
English Abstract of JP02000050017A.
Arai Koji
Ishimoto Koichi
Kurita Mitsuru
Maruyama Hiroyoshi
Minami Masashi
Canon Kabushiki Kaisha
Lee Cheukfan
Morgan & Finnegan L.L.P.
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