CA2288297A1 - Method of and apparatus for determining authenticity of coins - Google Patents

Method of and apparatus for determining authenticity of coins Download PDF

Info

Publication number
CA2288297A1
CA2288297A1 CA002288297A CA2288297A CA2288297A1 CA 2288297 A1 CA2288297 A1 CA 2288297A1 CA 002288297 A CA002288297 A CA 002288297A CA 2288297 A CA2288297 A CA 2288297A CA 2288297 A1 CA2288297 A1 CA 2288297A1
Authority
CA
Canada
Prior art keywords
coins
difference
exciting coil
surface irregularity
irregularity pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002288297A
Other languages
French (fr)
Other versions
CA2288297C (en
Inventor
Yonezo Furuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Conlux Co Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2288297A1 publication Critical patent/CA2288297A1/en
Application granted granted Critical
Publication of CA2288297C publication Critical patent/CA2288297C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/005—Testing the surface pattern, e.g. relief

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)

Abstract

A method of and apparatus for determining authenticity of coins based on difference in surface irregularity pattern of coins. A coin passage is inclined at a predetermined angle, and an exciting coil is arranged near one side wall of the coin passage such that the two magnetic poles of the exciting coil face the coin passage. Two receiving coils having substantially identical characteristics are arranged near the same passage wall such that they are electromagnetically coupled with the exciting coil. The exciting coil is excited at a predetermined frequency, and an influence of a demagnetizing field caused by eddy current induced on the surface of a coin is detected by the receiving coils. The level of the demagnetizing field varies depending on difference in surface irregularity pattern of coins, and thus authenticity of coins can be determined based on the difference in surface irregularity pattern. This can be attained with a simple, inexpensive arrangement.
Even those coins which are almost identical in material, outside diameter and thickness can be discriminated from one another based on the difference in surface irregularity pattern.
CA002288297A 1998-02-26 1999-02-25 Method of and apparatus for determining authenticity of coins Expired - Fee Related CA2288297C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP06037798A JP3660496B2 (en) 1998-02-26 1998-02-26 Method and apparatus for inspecting authenticity of coin
JP10/60377 1998-02-26
PCT/JP1999/000881 WO1999044176A1 (en) 1998-02-26 1999-02-25 Method and device for checking coin for forgery

Publications (2)

Publication Number Publication Date
CA2288297A1 true CA2288297A1 (en) 1999-09-02
CA2288297C CA2288297C (en) 2004-04-27

Family

ID=13140398

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002288297A Expired - Fee Related CA2288297C (en) 1998-02-26 1999-02-25 Method of and apparatus for determining authenticity of coins

Country Status (7)

Country Link
EP (1) EP0978807A4 (en)
JP (1) JP3660496B2 (en)
KR (1) KR100562857B1 (en)
AU (1) AU729021B2 (en)
CA (1) CA2288297C (en)
MY (1) MY123288A (en)
WO (1) WO1999044176A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3773689B2 (en) * 1999-03-17 2006-05-10 株式会社日本コンラックス Coin inspection method and apparatus
US6640955B1 (en) * 1999-10-06 2003-11-04 Kabushiki Kaisha Nippon Conlux Coin inspection method and device
US6340082B1 (en) * 1999-10-22 2002-01-22 Japan Tobacco Inc. Coin discriminating apparatus
EP1241636B1 (en) * 2001-03-15 2009-08-12 Glory Ltd. Coin processing apparatus
JP4039578B2 (en) * 2002-04-26 2008-01-30 株式会社アヅマシステムズ Magnetic probe
DE102007046390B3 (en) 2007-09-20 2008-11-27 National Rejectors, Inc. Gmbh Method for checking coins
JP7443733B2 (en) * 2019-11-28 2024-03-06 沖電気工業株式会社 Coin recognition device and coin handling device using the coin recognition device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870137A (en) 1972-02-23 1975-03-11 Little Inc A Method and apparatus for coin selection utilizing inductive sensors
JPS6180491A (en) * 1984-09-28 1986-04-24 株式会社日本コンラックス Coin inspector
US4705154A (en) * 1985-05-17 1987-11-10 Matsushita Electric Industrial Co. Ltd. Coin selection apparatus
JPH0589319A (en) * 1991-09-26 1993-04-09 Tdk Corp Coin sensor
WO1993007589A1 (en) * 1991-09-28 1993-04-15 Anritsu Corporation Device for sorting coins
JP2964057B2 (en) * 1992-10-09 1999-10-18 アンリツ株式会社 Coin sensor of coin discriminator
JP3478602B2 (en) * 1994-07-28 2003-12-15 株式会社日本コンラックス Coin inspection method and device
JPH08212416A (en) * 1995-02-03 1996-08-20 Anritsu Corp Coin discriminating device
US5630494A (en) * 1995-03-07 1997-05-20 Cummins-Allison Corp. Coin discrimination sensor and coin handling system

Also Published As

Publication number Publication date
AU2549499A (en) 1999-09-15
CA2288297C (en) 2004-04-27
JP3660496B2 (en) 2005-06-15
EP0978807A4 (en) 2002-03-06
KR100562857B1 (en) 2006-03-24
AU729021B2 (en) 2001-01-25
KR20000076308A (en) 2000-12-26
MY123288A (en) 2006-05-31
EP0978807A1 (en) 2000-02-09
WO1999044176A1 (en) 1999-09-02
JPH11250305A (en) 1999-09-17

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20160225