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:
Nov. 12, 2019
Filed:
Apr. 03, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image capturing apparatus includes an image capturing unit configured to capture an image focused on a light receiving surface, a gain unit configured to multiply a gain to an image signal output from the image capturing unit and be able to electronically change brightness of an image that the image signal represents, and a focus signal generating unit configured to extract a signal in a frequency band from the image signal output from the gain unit and generate a focus signal from the extracted signal. The focus signal generating unit changes the frequency band for the signal to be used in generating the focus signal in accordance with the magnitude of the gain.