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:
Oct. 19, 1999
Filed:
Jul. 28, 1997
Nobuyuki Mori, Sakai, JP;
Hidekazu Nakajima, Higashioska, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
In an apparatus having a film condition judging device which judges a film condition based on data obtained by reading out bar codes of a bar code disk equipped on a film cartridge, wherein the bar code disk is initially stopped at a predetermined rotational position in response to the film condition, signals which are output from a sensor, are detected at plurality of times during a bar code disk rotation, and so inclinations in changes of the sensor's output are detected, thereby an error signal is distinguished from a correct signal according to the inclinations in the changes. Further, a sensor's output as a correct signal is counted, then the used condition of the film is judged based on the counted value of the sensor's output. Thus, even if there occurs an unstable rotation of the bar code disk, which brings the error signal, the film condition can be correctly judged by one sensor.