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:
Mar. 31, 2015
Filed:
Dec. 16, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Naoki Iwasaki, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); G03B 13/36 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01); G03B 13/36 (2013.01);
Abstract
Subject distances of a plurality of subject areas included in a captured image are computed based on a plurality of focus evaluation values indicating in-focus positions of a plurality of focus detection areas set in the captured image. Upon detection of a change in the captured image, the subject distances of the plurality of subject areas are re-computed by re-moving a focus lens. In this case, a driving range of the focus lens includes in-focus positions corresponding to previously-calculated subject distances and corresponds to the distribution of the previously-calculated subject distances.