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:
May. 16, 2006
Filed:
Jun. 05, 2002
Noriyuki Okisu, Osaka, JP;
Keiji Tamai, Osaka, JP;
Masahiro Kitamura, Osaka, JP;
Motohiro Nakanishi, Osaka, JP;
Noriyuki Okisu, Osaka, JP;
Keiji Tamai, Osaka, JP;
Masahiro Kitamura, Osaka, JP;
Motohiro Nakanishi, Osaka, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
An automatic focusing device capable of focus detection so that the in-focus state can be adequately realized, even if the magnification changes or a camera shake occurs. The sum total of the absolute values of the differences between two pixels in an evaluation area is calculated, the sum total of the square values of the differences between the two pixels in the evaluation area is calculated, and the evaluation value is obtained based on the sum total of the absolute values of the differences and the sum total of the square values of the differences to obtain the in-focus position of the taking lens.