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:
May. 31, 1983
Filed:
Oct. 17, 1980
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
This disclosure concerns currency identification systems for examining an authenticity characteristic of a detected currency and comparing it to an authenticity characteristic of a genuine currency to determine if the detected currency is genuine. The systems comprises memory means for storing a series of first electrical signals representing the authenticity characteristic of the genuine currency, each of the first signals corresponding to a discrete successive area of the genuine currency and representing a component of a first authenticity vector, detecting means for scanning the detected currency and generating a series of second electrical signals representing the authenticity characteristic of the detected currency, each of the second signals corresponding to a discrete successive area of the detected currency and representing a component of a second authenticity vector, calculating means coupled to the detecting means and the memory means to calculate a value of similarity corresponding to an angle between the first authenticity vector and the second authenticity vector, and comparing means for comparing the value of similarity with a predetermined value which represents a permissable authenticity value for the detected currency corresponding to a genuine currency.