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:
Jun. 12, 1990
Filed:
Oct. 04, 1988
Applicant:
Inventor:
Shinichi Matsuyama, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354400 ; 3541951 ;
Abstract
In a camera system capable of automatic focusing and manual focusing, a mode setting signal set by an automatic or manual focusing setting member provided in a lens device is transmitted to a camera and, depending on the mode setting signal, a manual focusing allowance signal is transmitted from the camera to the lens device, wherein the lens device comes into a manual focusing possible state in response to the manual focusing allowance signal from the camera.
Matsuyama, Shinichi. (1990). Camera and lens system capable of automatic focusing and manual focusing (U.S. Patent No. 4933701). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4933701
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