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. 29, 1997
Filed:
Dec. 19, 1994
Kazuyuki Kazami, Tokyo, JP;
Norikazu Yokonuma, Kanagawa-ken, JP;
Hideo Hibino, Kanagawa-ken, JP;
Youichi Yamazaki, Kanagawa-ken, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A camera communicates with an external device using light signals that are transmitted using one or more photoelectric elements. Preferably, the communications are facilitated by using one or more camera photoelectric elements located in a cartridge chamber of the camera, which usually is used to receive a film cartridge. The one or more camera photoelectric elements usually are used to read a bar code on the film cartridge. In order to perform data communications with the external device, a dummy cartridge, which is linked to the external device, is placed in the cartridge chamber and includes one or more cartridge photoelectric elements that oppose the one or more camera photoelectric elements when placed in the cartridge chamber. Communications can take place in one or both directions between the camera and the external device.