Title:
MONEY ITEM ACCEPTOR WITH ENHANCED SECURITY
Document Type and Number:
WIPO Patent Application WO2004063995
Kind Code:
A3
Abstract:
An acceptor for money items such as coins or banknotes produces a money item parameter signal (x1) depending on a sensed characteristic of the money item. A store (12) provides window data corresponding to normal acceptance ranges of values of the parameter signal for a money item of a particular denomination (NAW), as well as restricted acceptance windows (RAW). A processor (11) determines when an occurrence of the parameter signal (x1) may represent a fraudulent money item and then for subsequent sensed money items compares the value of the parameter signals (x1) with the restricted acceptance range (RAW). The RAW range is used until n succAn acceptor for money items such as coins or banknotes produces a money item parameter signal (x1) depending on a sensed characteristic of the money item. A store (12) provides window data corresponding to normal acceptance ranges of values of the parameter signal for a money item of a particular denomination (NAW), as well as restricted acceptance windows (RAW). A processor (11) determines when an occurrence of the parameter signal (x1) may represent a fraudulent money item and then for subsequent sensed money items compares the value of the parameter signals (x1) with the restricted acceptance range (RAW). The RAW range is used until n successive true coins are inserted or a time t has lapsed. After a fraudulent attempt, the values of n and t are increased so that a fraudster cannot then insert n true coins or wait a time t and attempt another fraudulent coin insertion. Also, a focussed rejection window (FRW) rejects coins with suspiciously close parameter signals, which could form part of a counterfeit set.
Inventors:
BELL MALCOLM REGINALD HALLAS (GB)
BARSON ANDREW WILLIAM (GB)
MULVEY KEVIN CHARLES (GB)
BARSON ANDREW WILLIAM (GB)
MULVEY KEVIN CHARLES (GB)
Application Number:
PCT/GB2004/000070
Publication Date:
March 17, 2005
Filing Date:
January 09, 2004
Export Citation:
Assignee:
MONEY CONTROLS LTD (GB)
BELL MALCOLM REGINALD HALLAS (GB)
BARSON ANDREW WILLIAM (GB)
MULVEY KEVIN CHARLES (GB)
BELL MALCOLM REGINALD HALLAS (GB)
BARSON ANDREW WILLIAM (GB)
MULVEY KEVIN CHARLES (GB)
International Classes:
G07D5/08; G07D7/04; G07D7/12; G07D7/16; (IPC1-7): G07D7/00
Domestic Patent References:
| WO2000048138A1 | 2000-08-17 |
Foreign References:
| US5355989A | 1994-10-18 | |||
| EP1156458A2 | 2001-11-21 |
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