US3918563A - Coin arrival sensor - Google Patents

Coin arrival sensor Download PDF

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Publication number
US3918563A
US3918563A US525840A US52584074A US3918563A US 3918563 A US3918563 A US 3918563A US 525840 A US525840 A US 525840A US 52584074 A US52584074 A US 52584074A US 3918563 A US3918563 A US 3918563A
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US
United States
Prior art keywords
coin
output signal
comparator
signal
reference signal
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.)
Expired - Lifetime
Application number
US525840A
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English (en)
Inventor
Guustaaf Arthur Schwippert
Wouter Smits
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.)
Mars Inc
Original Assignee
Mars Inc
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Filing date
Publication date
Application filed by Mars Inc filed Critical Mars Inc
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Publication of US3918563A publication Critical patent/US3918563A/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • FIG. 3 is a detailed block diagram of one embodiment of circuitry for the arrival sensor of FIGS. 1 and FIG. 4 is a series of signal traces, plotted against a common time axis, useful in understanding the embodiment of FIG. 3;
  • the output signal of the amplifier 276 (shown in FIG. 8d) therefore changes from negative to positive.
  • This positive pulse is applied to a delay unit 282 as a gate open command signal. After a suitable delay, this signal is used to activate the start gate solenoid 42 and coinrecognition circuit 44.
  • the comparing means include two comparators, a first comparator connected to the receiving means for comparing the detected amplitude of the high frequency component with the output of a first. reference signal generator the first comparator producing an output signal if the said detected amplitude so deviates from the reference signal as to correspond to the signal for a conductive coil, and a second comparator connected to the receiving means for comparing the detected amplitude of the lower frequency component with the output of a second reference signal generator, the second comparator producing an output signal if the detected amplitude so deviates from the reference signal as to correspond to the signal for a ferromagnetic coin, and com- 1 1 binatorial means for providing the output signal for the comparing means only when the first comparator is producing its output signal and the second comparator is not producing its output signal.
  • the comparing means include two comparators, a first comparator connected to the receiving means for comparing the detected amplitude of the high frequency component with the output of a first reference signal generator, the first comparator producing an output signal if the said detected amplitude so deviates from the reference signal as to correspond to the signal for a conductive coin, and a second comparator connected to the receiving means for comparing the detected amplitude of the lower frequency component with the output of a second reference signal generator, the second comparator producing an output signal if thedetected amplitude so deviates from the reference signal as to correspond to the signal for a ferromagnetic coin, and combinatorial means for providing the output signal for the comparing means only when the first comparator is producing its output signal and the second comparator is not producing its output signal.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
US525840A 1973-11-22 1974-11-21 Coin arrival sensor Expired - Lifetime US3918563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54319/73A GB1483192A (en) 1973-11-22 1973-11-22 Arrival sensor

Publications (1)

Publication Number Publication Date
US3918563A true US3918563A (en) 1975-11-11

Family

ID=10470622

Family Applications (1)

Application Number Title Priority Date Filing Date
US525840A Expired - Lifetime US3918563A (en) 1973-11-22 1974-11-21 Coin arrival sensor

Country Status (8)

Country Link
US (1) US3918563A (enExample)
JP (1) JPS5738945B2 (enExample)
CA (1) CA1038055A (enExample)
DE (1) DE2455112C2 (enExample)
FR (1) FR2252612B1 (enExample)
GB (1) GB1483192A (enExample)
HK (1) HK183A (enExample)
ZA (1) ZA747460B (enExample)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091908A (en) * 1976-02-10 1978-05-30 Nippon Coinco Co., Ltd. Coin checking device for a vending machine
US4106610A (en) * 1976-06-07 1978-08-15 Mars, Incorporated Coin apparatus having multiple coin-diverting gates
WO1981002354A1 (en) * 1980-02-06 1981-08-20 Mars Inc Improvements in and relating to testing coins
US4353452A (en) * 1980-04-04 1982-10-12 U.M.C. Industries, Inc. Coin-handling device
FR2580098A1 (enExample) * 1985-04-08 1986-10-10 Qonaar Corp
US4625852A (en) * 1985-09-05 1986-12-02 Coil Acceptors, Inc. Coin detection and validation means and method
EP0184393A3 (en) * 1984-12-05 1987-09-30 Mars Incorporated Coin checking apparatus
US4739869A (en) * 1985-09-05 1988-04-26 Coin Acceptors, Inc. Coin detection and validation means and method
US4936435A (en) * 1988-10-11 1990-06-26 Unidynamics Corporation Coin validating apparatus and method
US4971187A (en) * 1988-03-31 1990-11-20 Nippon Conlux Co., Ltd. Method and apparatus for sorting coins utilizing coin-derived signals containing different harmonic components
GB2235559A (en) * 1989-08-21 1991-03-06 Mars Inc Coin testing apparatus
WO1993002431A1 (en) * 1991-07-16 1993-02-04 C.T. Coin A/S Method and apparatus for testing and optionally sorting coins
US5293979A (en) * 1991-12-10 1994-03-15 Coin Acceptors, Inc. Coin detection and validation means
EP0607624A1 (de) * 1993-01-21 1994-07-27 National Rejectors Inc. GmbH Elektrischer Einschaltsensor für batteriebetriebene Münzprüfer
US5526918A (en) * 1995-06-15 1996-06-18 Greenwald Industries Inc. Coin validating apparatus and method
US5673781A (en) * 1995-11-21 1997-10-07 Coin Acceptors, Inc. Coin detection device and associated method
US5799768A (en) * 1996-07-17 1998-09-01 Compunetics, Inc. Coin identification apparatus
US6138813A (en) * 1999-06-03 2000-10-31 Mars, Incorporated Coin mechanism with a piezoelectric film sensor
US6145646A (en) * 1996-04-03 2000-11-14 Electrowatt Technology Innovation Ag Device for checking the authenticity of coins, tokens or other flat metal objects
US6223877B1 (en) 1996-07-29 2001-05-01 Qvex, Inc. Coin validation apparatus
US20040211645A1 (en) * 2002-07-19 2004-10-28 King Katharine Louise Coin validation by signal processing

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119292A (en) * 1975-04-11 1976-10-19 Nippon Signal Co Ltd:The Screening of coin and its device
US4385684A (en) * 1979-07-17 1983-05-31 Kabushiki Kaisha Nippon Coinco Coin selection device
GB2094008B (en) * 1981-02-11 1985-02-13 Mars Inc Improvements in and relating to apparatus for checking the validity of coins
GB2093620B (en) * 1981-02-11 1985-09-04 Mars Inc Checking coins
US4488116A (en) * 1981-09-22 1984-12-11 Mars, Incorporated Inductive coin sensor for measuring more than one parameter of a moving coin
JPS58106453A (ja) * 1981-12-18 1983-06-24 Sanee Denki Kk 金属片の検出装置
GB8400046D0 (en) * 1984-01-03 1984-02-08 Starpoint Electrics Ltd Coin checking
GB2170637A (en) * 1983-04-12 1986-08-06 Fki Electrical Parking metres
GB2160689B (en) * 1984-04-27 1987-10-07 Piper Instr Limited Coin detection
GB2207270B (en) * 1987-07-20 1991-06-19 Thomas Patrick Sorensen Improvements in and relating to determining the characteristics of conducting objects
GB2308004A (en) * 1995-12-05 1997-06-11 John Jervis Comfort Coin recognition apparatus

Citations (1)

* 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936898A1 (de) * 1969-07-19 1971-02-04 Pruemm Georg Verfahren zur Pruefung von Muenzen
GB1397083A (en) * 1971-05-24 1975-06-11 Mars Inc Coin selector utilizing inductive sensors

Patent Citations (1)

* 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

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091908A (en) * 1976-02-10 1978-05-30 Nippon Coinco Co., Ltd. Coin checking device for a vending machine
US4106610A (en) * 1976-06-07 1978-08-15 Mars, Incorporated Coin apparatus having multiple coin-diverting gates
WO1981002354A1 (en) * 1980-02-06 1981-08-20 Mars Inc Improvements in and relating to testing coins
EP0034887A1 (en) * 1980-02-06 1981-09-02 Mars Incorporated Improvements in and relating to testing coins
JPH0570196B2 (enExample) * 1980-02-06 1993-10-04 Mars Inc
JPH01213782A (ja) * 1980-02-06 1989-08-28 Mars Inc 硬貨検査法
US4353452A (en) * 1980-04-04 1982-10-12 U.M.C. Industries, Inc. Coin-handling device
EP0184393A3 (en) * 1984-12-05 1987-09-30 Mars Incorporated Coin checking apparatus
FR2580098A1 (enExample) * 1985-04-08 1986-10-10 Qonaar Corp
US4739869A (en) * 1985-09-05 1988-04-26 Coin Acceptors, Inc. Coin detection and validation means and method
US4625852A (en) * 1985-09-05 1986-12-02 Coil Acceptors, Inc. Coin detection and validation means and method
US4971187A (en) * 1988-03-31 1990-11-20 Nippon Conlux Co., Ltd. Method and apparatus for sorting coins utilizing coin-derived signals containing different harmonic components
US4936435A (en) * 1988-10-11 1990-06-26 Unidynamics Corporation Coin validating apparatus and method
GB2235559A (en) * 1989-08-21 1991-03-06 Mars Inc Coin testing apparatus
US5323891A (en) * 1989-08-21 1994-06-28 Mars Incorporated Coin testing apparatus
WO1993002431A1 (en) * 1991-07-16 1993-02-04 C.T. Coin A/S Method and apparatus for testing and optionally sorting coins
US5293979A (en) * 1991-12-10 1994-03-15 Coin Acceptors, Inc. Coin detection and validation means
US5454463A (en) * 1993-01-21 1995-10-03 Meyer; Wilfried Electric starting sensor for battery-operated coin acceptors
EP0607624A1 (de) * 1993-01-21 1994-07-27 National Rejectors Inc. GmbH Elektrischer Einschaltsensor für batteriebetriebene Münzprüfer
US5526918A (en) * 1995-06-15 1996-06-18 Greenwald Industries Inc. Coin validating apparatus and method
US5673781A (en) * 1995-11-21 1997-10-07 Coin Acceptors, Inc. Coin detection device and associated method
US6145646A (en) * 1996-04-03 2000-11-14 Electrowatt Technology Innovation Ag Device for checking the authenticity of coins, tokens or other flat metal objects
US5799768A (en) * 1996-07-17 1998-09-01 Compunetics, Inc. Coin identification apparatus
US6015037A (en) * 1996-07-17 2000-01-18 Compunetics, Inc. Coin identification apparatus
US6148987A (en) * 1996-07-17 2000-11-21 Compunetics, Inc. Coin identification apparatus
US6223877B1 (en) 1996-07-29 2001-05-01 Qvex, Inc. Coin validation apparatus
US6138813A (en) * 1999-06-03 2000-10-31 Mars, Incorporated Coin mechanism with a piezoelectric film sensor
US20040211645A1 (en) * 2002-07-19 2004-10-28 King Katharine Louise Coin validation by signal processing
US7025190B2 (en) 2002-07-19 2006-04-11 Mars, Incorporated Coin validation by signal processing

Also Published As

Publication number Publication date
FR2252612B1 (enExample) 1978-06-16
AU7560674A (en) 1976-05-27
CA1038055A (en) 1978-09-05
JPS5738945B2 (enExample) 1982-08-18
JPS5087097A (enExample) 1975-07-12
HK183A (en) 1983-01-06
FR2252612A1 (enExample) 1975-06-20
DE2455112A1 (de) 1975-05-28
DE2455112C2 (de) 1986-11-27
ZA747460B (en) 1975-11-26
GB1483192A (en) 1977-08-17

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