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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.:

US 4284333 B1

PDFFull Text
Date of Patent:
Aug. 18, 1981

Filed:

Apr. 11, 1980

Exposure control device for camera

Applicant:
Inventors:

Masaharu Kawamura, Kawasaki, JP;

Yoshihiro Shigeta, Tokyo, JP;

Masanori Uchidoi, Yokohama, JP;

Yoji Sugiura, Yokohama, JP;

Hiroshi Yamamoto, Yokohama, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Toren, McGeady and Stanger

Primary Examiner:

Michael L Gellner

Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 / ; 354 51 ; 354 / ;
Abstract

An exposure control device for a camera having a first counter which performs analog-to-digital conversion for a photometric purpose and a second counter for sequence control of each part of the camera. For use of a self-timer, the first and second counters are connected in series with each other to use them in a state of having their steps added together. Upon completion of a self-timer photographing operation, the first and second counters are separated from each other and are brought back into their original conditions.

Find Patent Forward Citations

Kawamura, Masaharu. (1981). Exposure control device for camera (U.S. Patent No. 4284333). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4284333

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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