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. 12, 2017
Filed:
Jan. 22, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hideyuki Hamano, Kawasaki, JP;
Yumi Watanabe, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A focusing adjustment apparatus includes a recording unit, a focusing adjustment unit, a calculation unit, and a calculation unit. The recording unit records a recording signal output from an image sensor. The focusing adjustment unit adjusts focusing on an object image entering the image sensor based on information about an image-forming position in a first evaluation band of the recording signal. The calculation unit calculates the image-forming position in the first evaluation band of the recording signal by correcting, using a correction value, an image-forming position in a second evaluation band of a focusing adjustment signal obtained from the image sensor. The calculation unit changes the correction value using information about the first evaluation band of the recording signal.