Differential detection coin discrimination systems and methods for use with consumer-operated kiosks and the like
US8668069B1 · kind B1 · utility
3Cited by
15References
46Claims
0Family size
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Inventor
Key dates
| Filing date | Nov 30, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D9/00
- WIPO fieldControl
- WIPO sectorInstruments
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, generating a contour signal by digitizing the sensor signal, identifying an active interval in the contour signal by eliminating the segments of the contour signal which are close to zero, and detecting the coin approach, pivot and departure points (coin features) from the contour signal in the active interval. The coin features can be compared to known values for different coins to discriminate the coin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.