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. 16, 1995
Filed:
Sep. 03, 1993
Robert Danek, Marlborough, CT (US);
Richard Menelly, Burlington, CT (US);
Other;
Abstract
A linear array of photo-emitters and photodetectors is positioned on one side of currency paper subjected to verification for authenticity under transmitted and reflected light. The focus of the photo emitters is adjusted for the top surface, center and bottom surface of the currency paper. A logic circuit-determines the presence or absence of the security feature and correspondingly provides visual or audible indication thereof. A memory device contains stored information identifying currency denomination and a comparison is made at the time of verification to also determine the denomination of the proffered currency. The photo emitters, photo-detectors and related circuitry are arranged within an enclosure that is located next to a currency-receiving device such as a cash register. Visual or audible indicators are mounted on the device for immediate indication of the currency verification to the cashier along with the currency denomination. The arrangement of the photo emitters and photo-detectors transverse to the major length of the currency paper detects the security feature while confirming that the security feature is within the currency paper and not on either surface.