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:
Jan. 21, 2020
Filed:
Aug. 10, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Masaaki Uenishi, Kawasaki, JP;
Satoshi Kimoto, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A control apparatus includes an acquirer () which acquires a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system, a calculator () which performs a plurality of filtering processes with different bands for the first signal and the second signal to calculate a plurality of defocus amounts and reliabilities based on the first signals and the second signals where the respective filtering processes have been performed, and a determiner () which determines a defocus amount used for focusing from among the plurality of defocus amounts based on a difference between the plurality of defocus amounts and at least one of the plurality of reliabilities.