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:
Sep. 03, 1996
Filed:
Jun. 07, 1995
Norikazu Yokonuma, Yokohama, JP;
Kazuyuki Kazami, Tokyo, JP;
Hideo Hibino, Kawasaki, JP;
Youichi Yamazaki, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
The present invention is applicable to a camera capable of reading in film specific information recorded by means of a bar code. This film specific information is inscribed upon a display portion which rotates together with the forwarding of a film stored within a cartridge. The camera includes: a photointerruptor which optically reads the bar code on the bar code display portion as the bar code display portion rotates together with the forwarding of the film, and which outputs as an electrical signal of the result thus read; a comparator which compares the output signal from the photointerruptor with a threshold level; a calculation device for calculating a standard value for setting the threshold level based upon the output signal from the photointerruptor; a reference value control device which controls the threshold level according to the standard value; and a determination device which determines the film specific information based upon the output of the comparator.