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, 2000
Filed:
Jan. 29, 1997
Kenji Mizumoto, Osaka, JP;
Satoshi Hamada, Habikino, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
An apparatus having a judging device judges whether a film frame is exposed or not by detecting that a magnetically recorded signal exists or not on a magnetic recording section arranged correspondingly on each frame of a film. The device judges, when it is judged that one frame is an unexposed frame by detecting no recorded signal on the magnetic recording section, whether a following frame is exposed or not. And, if it is judged that the following frame is also an unexposed frame, it is judged that the previous frame is not exposed. Thus, an accurate judgment of an unexposed frame and film feeding of a head frame of unexposed frames to a photographing position can be achieved.