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. 01, 2016
Filed:
Oct. 20, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroyuki Ogino, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image pickup apparatus arranged to perform a focus adjustment by moving a focus lens based on an image pickup signal, parallelly reading out the image pickup signal obtained in a period set by a timing signal for setting a first exposure period and the image pickup signal obtained in a period set by a timing signal for setting a second exposure period from an image pickup unit by shifting the timing signals from each other in phase, obtain a focus evaluation value from the image pickup signal obtained in the set exposure period, and determine a position of the focus lens corresponding to the focus evaluation value based on a focus lens position when the image pickup signal is read out for the first exposure period and a focus lens position when the image pickup signal is read out for the second exposure period.