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. 24, 2018
Filed:
Jul. 19, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Takayuki Akaguma, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A focus adjusting apparatus detects a first area of a subject and reliability of a tracking position from an image signal output from an image sensor on which a subject image is formed by an optical system, detects focus states of focus detection areas based on the image signal, determines an in-focus area for which focus adjustment of the optical system is to be performed, predicts a focus state in next focus detection based on a history of focus states of the in-focus area, and selects a second area from the focus detection areas. The first area is determined as the in-focus area in a case where a state in which the reliability is higher than a predetermined first threshold continues for a predetermined time period or longer, and the second area is determined as in-focus area otherwise.