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:
Jul. 23, 1991
Filed:
Oct. 30, 1989
Tamura Electric Works, Ltd., , JP;
Abstract
A coin diameter discriminating device includes a plurality of optical sensors, a measuring section, and a calculating section, and a discriminating section. The plurality of optical sensors are arranged along the coin path so as to be separated from each other in a direction to cross a coin rolling direction and to oppose different positions of a coin which rolls downs. The measuring section measures a detection time of the coin on the basis of outputs from the optical sensors. The calculating section calculates a ratio of the detection times of two specific optical sensors which are supplied from the measuring section. The discriminating section discriminates a diameter of the inserted coin on the basis of a calculation result from the calculating section.