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:
May. 10, 2016
Filed:
Aug. 29, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Kengo Takeuchi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A plurality of image signals for focus detection are generated from combined signals obtained by combining output signals of a pixel in which a plurality of photoelectric conversion areas obtained by dividing are arranged in a predetermined direction, in units of the photoelectric conversion areas, and the defocus amount is detected based on a correlation amount between the plurality of image signals. The combined signals are generated for each pixel block, for a plurality of pixel block lines in which pixel blocks each having a predetermined size are arranged in the predetermined direction. The pixel data amount for focus detection can be effectively reduced by, in the combining, making combining central points of signals, in the plurality of pixel block lines, shifted relative to each other or phases of positions of the pixel blocks different from each other.