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:
Apr. 25, 1989
Filed:
Feb. 09, 1987
Applicant:
Inventor:
Masaru Ono, Tokyo, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G03B / ;
U.S. Cl.
CPC ...
364518 ; 355 40 ; 353 / ;
Abstract
In a microfilm retrieval device, the frame which is located at the position corresponding to the frame address is automatically retrieved to project the object frame on the screen of the reader. In such a retrieval device, it is necessary to be able to appropriately and precisely position the object frame regardless of the type and size of the frame pitch on the microfilm. Precise positioning of the object frame is accomplished by designating two arbitrary frames of different addresses and calculating the reference frame pitch between them.