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:
Oct. 11, 2011
Filed:
Feb. 05, 2009
Yasuyuki Ikeda, Yokohama, JP;
Yasuyuki Ikeda, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image capturing apparatus comprises an image capturing unit which has an image sensor, a storage unit which stores foreign substance information of a foreign substance adhering to an optical element arranged in front of the image sensor, a buffer unit which temporarily stores the image signal output from the image capturing unit, a correction unit which corrects, based on the foreign substance information, an image signal corresponding to a shadow of the foreign substance among image signals output from the buffer unit and outputs a corrected image signal, and a control unit which controls the buffer unit and the correction unit to change, in accordance with a free area of the buffer unit, an amount of the image signal corresponding to the shadow of the foreign substance that is to be corrected among image signals output from the image capturing unit.