The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2003
Filed:
May. 26, 1999
Hiroshi Sato, Kawasaki, JP;
Hiroyoshi Maruyama, Shizuoka-ken, JP;
Ken Tanabe, Mishima, JP;
Masashi Minami, Misato, JP;
Shigeo Yamagata, Yokohama, JP;
Mitsuru Kurita, Yokohama, JP;
Koji Arai, Kawaguchi, JP;
Tsutomu Utagawa, Yokohama, JP;
Koichi Ishimoto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile