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. 09, 2001
Filed:
Jan. 23, 1996
Applicant:
Inventors:
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 1/724 ;
U.S. Cl.
CPC ...
G03B 1/724 ;
Abstract
A camera has a function of determining whether a frame is exposed or unexposed by reproducing signals recorded on a magnetic-recording region of a film. When a film cartridge is loaded into the camera, the film is fed out therefrom. If it is determined that a noise having a level higher than a reference level is included in a reproduced signal read by a magnetic head, for reading the signals recorded on the magnetic-recording region, before the magnetic head reaches the magnetic-recording region, film feeding is stopped and a warning is issued.