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:
Jul. 14, 2020
Filed:
Feb. 13, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomokuni Hirosawa, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); H04N 5/353 (2011.01); G03B 13/36 (2006.01); G02B 7/28 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01); G02B 7/28 (2013.01); G03B 13/36 (2013.01); H04N 5/232122 (2018.08); H04N 5/232123 (2018.08); H04N 5/3535 (2013.01);
Abstract
A focus detection apparatus, comprising: an image sensor having a plurality of pixels arranged two-dimensionally; a drive control unit configured to cause exposure for accumulation times that differ in respective pixel rows of the image sensor to be performed; and a focus detection unit configured to detect a defocus amount by using a signal obtained from pixels of a line that includes pixels of a plurality of pixel rows, wherein the focus detection unit detects the defocus amount based on accumulation times of pixel rows corresponding to each pixel included in the line.