MY123288A - Method and device for checking coin for forgery - Google Patents

Method and device for checking coin for forgery

Info

Publication number
MY123288A
MY123288A MYPI99000723A MYPI9900723A MY123288A MY 123288 A MY123288 A MY 123288A MY PI99000723 A MYPI99000723 A MY PI99000723A MY PI9900723 A MYPI9900723 A MY PI9900723A MY 123288 A MY123288 A MY 123288A
Authority
MY
Malaysia
Prior art keywords
coins
exciting coil
coin
irregularity pattern
surface irregularity
Prior art date
Application number
MYPI99000723A
Inventor
Yonezo Furuya
Original Assignee
Nippon Conlux Co Ltd
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 Nippon Conlux Co Ltd filed Critical Nippon Conlux Co Ltd
Publication of MY123288A publication Critical patent/MY123288A/en

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 APARATUS (30) FOR DETERMINING AUTHENTICITY OF COINS BASED ON DIFFERENCE IN SURFACE IRREGULARITY PATTERN OF COINS (3). A COIN PASSAGE (6) IS INCLINED AT A PREDETERMINED ANGLE, AND AN EXCITING COIL (1) IS ARRANGED NEAR ONE SIDE WALL (7A) OF THE COIN PASAGE SUCH THAT THE TWO MAGNETIC POLES OF THE EXCITING COIL FACE THE COIN PASSAGE. TWO RECEIVINIG COILS (2A,2B) HAVING SUBSTANTIALLY IDENTICAL CHARACTERISTICS ARE ARRAGED NEAR THE SAME PASSAGE WALL SUCH THAT THEY ARE ELECTROMAGNETICALLY COUPLED WITH THE EXCITING COIL (1). 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 (3) IS DETECTED BY THE RECEIVING COILS (2A,2B). THE LEVER OF THE DEMAGNETIZING OR REACTIVE MAGNET FIELD VARIES DEPENDING ON DIFFERENCE IN SURFACE IRREGULARITY PATTERN OF COINS (3), AND THUS AUTHENTICITY OF COINS CAN BE DETERMINED BASED ON THE DIFFRENCE IN SURFACE IRREGULARITY PATTERN. THIS CAN BE ATTAINED WITH A SIMPLE, INEXPENSIVE ARRANGEMENT. EVEN THOSE COINS (3) WHICH ARE ALMOST IDENTICAL IN MATERIAL, OUTSIDE DIAMETER AND THICKNESS IRREGULARITY PATTERN.(FIG.2)
MYPI99000723A 1998-02-26 1999-02-26 Method and device for checking coin for forgery MY123288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06037798A JP3660496B2 (en) 1998-02-26 1998-02-26 Method and apparatus for inspecting authenticity of coin

Publications (1)

Publication Number Publication Date
MY123288A true MY123288A (en) 2006-05-31

Family

ID=13140398

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI99000723A MY123288A (en) 1998-02-26 1999-02-26 Method and device for checking coin for forgery

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
KR100390251B1 (en) * 1999-10-06 2003-07-04 가부시키가이샤 닛폰 콘락스 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
WO2003091657A1 (en) * 2002-04-26 2003-11-06 Azuma Systems Co., Ltd 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
GB2266400B (en) * 1991-09-28 1995-11-22 Anritsu Corp Coin discriminating apparatus
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
KR100562857B1 (en) 2006-03-24
CA2288297A1 (en) 1999-09-02
JPH11250305A (en) 1999-09-17
AU2549499A (en) 1999-09-15
JP3660496B2 (en) 2005-06-15
CA2288297C (en) 2004-04-27
EP0978807A1 (en) 2000-02-09
EP0978807A4 (en) 2002-03-06
AU729021B2 (en) 2001-01-25
WO1999044176A1 (en) 1999-09-02
KR20000076308A (en) 2000-12-26

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