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:
Feb. 18, 1992
Filed:
Mar. 20, 1991
Applicant:
Inventors:
Masaki Higashihara, Yokohama, JP;
Ichiro Ohnuki, Kawasaki, JP;
Akira Akashi, Yokohama, JP;
Terutake Kadohara, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354402 ;
Abstract
An auto focus device for predicting the position of a moving objerct after a predetermined time on the basis of past autofocus operations and driving the lens to focus on the predicted position. The predetermined time being calculated based on the discrimination of the direction of movement of the object. The predicting calculations place the lens in a closer near state rather than making the lens in focus to the moving object.
Higashihara, Masaki. (1992). Auto focus device with predictive focussing (U.S. Patent No. 5089843). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5089843
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile