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:
Jun. 03, 2014
Filed:
Mar. 11, 2013
Applicant:
Coinstar, Inc., Bellevue, WA (US);
Inventor:
Daniel D. Everhart, Edmonds, WA (US);
Assignee:
Outerwall Inc., Bellevue, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07F 7/04 (2006.01); G06K 7/00 (2006.01); G06K 9/00 (2006.01); G07D 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and associated methods for coin discrimination are disclosed herein. In one embodiment, a method for discriminating coins includes obtaining an electromagnetic sensor signal of a coin, sampling the sensor signal, generating a fingerprint of the coin from the sampled sensor signal, and calculating an appraisal using the fingerprint and a linear discriminant vector. The appraisal can be compared to a threshold to determine whether the coin is valued or impostor. In some embodiments, the linear discriminant vector can be calculated using the valued and impostor coin populations' covariance and means.