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:
Feb. 04, 2020
Filed:
Feb. 20, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroyuki Hosogoshi, Yokohama, JP;
Miho Funabashi, Yokohama, JP;
Norikazu Honda, Yokohama, JP;
Masataka Iura, Ichikawa, JP;
Yuichi Yanagiwara, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image scanning apparatus determines whether there is an influence of external light from the outside of the image scanning apparatus on scanning; decides a correction value corresponding to each of a plurality of sensors based on received light amounts of at least some of the plurality of sensors; and corrects, using the correction value corresponding to each of the plurality of sensors and decided, data corresponding to a received light amount of each of the plurality of sensors when scanning the original, wherein if it is determined that there is the influence of the external light, the image scanning apparatus decides the correction value corresponding to a first sensor and the correction value corresponding to a second sensor arranged at a position that is readily influenced by the external light based on the received light amount of the first sensor.