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:
Feb. 03, 2004
Filed:
May. 16, 2001
Masanori Sugata, Saitama, JP;
Akira Onodera, Kawagoe, JP;
Kabushiki Kaisha Nippon Conlux, Tokyo, JP;
Abstract
A coin discrimination method and device reliably acquires stable two-dimensional images of the surfaces of coins, and using the acquired two-dimensional images is able to perform discrimination, reliably and at high speed, between genuine and counterfeit coins, and between coin types. In a coin pathway configured so as to block interfering light, sensors are positioned at an image-capture position and at a position upstream from the image-capture position; an image sensor is caused to begin image capture simultaneously with the detection, by the sensor upstream of the image-capture position, of a coin, and illumination is emitted for a short time simultaneously with the detection, by the sensor at the image-capture position, of the coin, to acquire an image of the coin. Specific patterns are detected in a binary image obtained by converting the acquired image to binary level, and coin discrimination is performed based on the detected patterns.