Image analysis – Image sensing – Optical
Patent
1997-07-02
1999-12-28
Couso, Jose L.
Image analysis
Image sensing
Optical
382312, G06K 710
Patent
active
060092157
ABSTRACT:
In an image reader, an original is irradiated with a light source. A reading of the original in a main scan direction is performed for each line by a line sensor. An optical system is movable relative to the original in a subsidiary scan direction of the original. The relative movement of the original and the optical system in the subsidiary scan direction is caused by a driving section. A line clamp of a DC level of an output signal of the line sensor is performed by a line clamp section. The timing at which the line clamp is to be performed and the presence/absence of the line clamp are controlled by a control section.
REFERENCES:
patent: 5070414 (1991-12-01), Tsutsumi
patent: 5121230 (1992-06-01), Honma et al.
patent: 5566006 (1996-10-01), Yoshinaga et al.
patent: 5712929 (1998-01-01), Kawamura et al.
Couso Jose L.
Do Anh Hong
Frank Robert J.
Matsushita Electric - Industrial Co., Ltd.
Wood Allen
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