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:
Mar. 03, 1998
Filed:
Jun. 07, 1995
Hideo Tamamura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A camera, which uses a film with a magnetic memory portion, or a control apparatus for such a camera, includes a first detection sensor for detecting a perforation of the film, arranged at a first position where the perforation of the film passes, a second detection sensor for detecting the perforation of the film, arranged at a second position where the perforation of the film passes and which is shifted from the first position in the direction in which the film is transported, and a control circuit for determining a starting time, a first stopping time, a writing frequency of writing information to the magnetic memory portion of the film, and a second stopping time to stop transporting the film, in response to the first and second detection sensors.