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:
Jun. 10, 2014
Filed:
Jul. 21, 2011
Yoshiharu Ikegawa, Kawasaki, JP;
Yoshiharu Ikegawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an image reading apparatus, based on image data obtained by reading a white image, detection is performed of an abnormal pixel based on a foreign substance adhering to a reading position of an original and data indicating a position of the abnormal pixel is outputted, then image data obtained by reading an original is corrected based on that data, and detection of the abnormal pixel is carried out immediately prior to reading of a first original, and a correction process based on data indicating a position of the abnormal pixel is carried out on image data obtained by reading a second original following on from the first original.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile