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:
Dec. 30, 2008
Filed:
Jul. 26, 2005
Yasuhiko Shiomi, Tokyo, JP;
Yasuhiko Shiomi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image sensing device of this invention corrects sensitivity nonuniformity of an image sensing element. This image sensing device has an image sensing element () having a two-dimensional matrix of pixels, a first multiplier circuit () for multiplying the output from the image sensing element () output via an A/D converter () by horizontal linear correction data, a second multiplier circuit () for multiplying the product of the first multiplier circuit by vertical linear correction data, a selector () for selecting horizontal linear correction data, and a selector () for selecting vertical linear correction data. The device switches the selectors () in accordance with the position (horizontal and vertical addresses) of the pixel of interest.