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:
Nov. 26, 2019
Filed:
Oct. 25, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Katsuhiro Ishido, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an image reading apparatus capable of accurately detecting an inclination amount of an original image by recognizing an edge part of the original image with high precision even when dust, stain, or the like adheres to a background part. The image reading apparatus includes: an original reader configured to read an image of an original; and a volume resistor configured to represent an original width of the original by a resistance value. The image reading apparatus further includes: a skew feed amount detector configured to set a predetermined range including the edge part of the original in a width direction as an edge detection range based on the original width, to acquire an edge image being the edge part of the original from an image within the edge detection range.