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:
Mar. 29, 2016
Filed:
Mar. 23, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshitsugu Sohara, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
In conventional image reading in a large-sized scanner using plural CIS sensors, overall linearity of an original is poor, and a shift occurs particularly at connection portions of the CIS sensors in the read image. To solve this, an image reading apparatus in which CISs are arranged zigzag, and an original is read while conveying the original by a conveyance roller in a direction different from an arrayed direction of the reading elements of the CIS sensors performs following correction. That is, a shift from an image position in a calibration sheet corresponding to a rotation angle of the conveyance roller for at each position of the CIS sensors is detected from image data obtained by reading the calibration sheet while conveying the calibration sheet by the conveyance roller. The shift is corrected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile