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. 17, 1984
Filed:
Mar. 08, 1982
Kazuo Shiozawa, Hachioji, JP;
Hiroshi Sawano, Hachioji, JP;
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
A camera is provided with a series of interchangeable lenses each provided with a source of information preferably in the form of a variable resistor, which is indicative of the type of lens. The camera body is provided with a source of power and an information processing unit. The variable resistor in each lens is connected to the camera body through an electrical contact and provides information to the camera not only of the type of lens attached, through a stepped range of voltages, but secondary information variable according to focal length, etc. in increments smaller than the individual steps in the voltage range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile