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:
Dec. 03, 1991
Filed:
Jul. 09, 1990
Applicant:
Inventors:
Kanji Ito, Tokyo, JP;
Mitsuhiro Kakuta, Tokyo, JP;
Assignee:
Seikosha Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354412 ; 354429 ; 354435 ; 3542671 ;
Abstract
An exposure control unit for controlling a motor-driven shutter includes an arrangement for interpolating, with linear approximation, between values in an exposure data table, in order to enable finer adjustment of the shutter without increasing the amount of stored table data.