US3918563A - Coin arrival sensor - Google Patents
Coin arrival sensor Download PDFInfo
- 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
- Authority
- 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
Links
Images
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
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)
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 (de) |
JP (1) | JPS5738945B2 (de) |
CA (1) | CA1038055A (de) |
DE (1) | DE2455112C2 (de) |
FR (1) | FR2252612B1 (de) |
GB (1) | GB1483192A (de) |
HK (1) | HK183A (de) |
ZA (1) | ZA747460B (de) |
Cited By (21)
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 (de) * | 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)
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)
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)
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 |
-
1973
- 1973-11-22 GB GB54319/73A patent/GB1483192A/en not_active Expired
-
1974
- 1974-11-21 ZA ZA00747460A patent/ZA747460B/xx unknown
- 1974-11-21 DE DE2455112A patent/DE2455112C2/de not_active Expired
- 1974-11-21 US US525840A patent/US3918563A/en not_active Expired - Lifetime
- 1974-11-21 FR FR7438249A patent/FR2252612B1/fr not_active Expired
- 1974-11-21 CA CA214,346A patent/CA1038055A/en not_active Expired
- 1974-11-22 JP JP13374274A patent/JPS5738945B2/ja not_active Expired
-
1983
- 1983-01-06 HK HK1/83A patent/HK183A/xx unknown
Patent Citations (1)
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)
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 (de) * | 1980-02-06 | 1981-09-02 | Mars Incorporated | Münzprüfung |
JPH0570196B2 (de) * | 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 (de) * | 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 |
---|---|
FR2252612A1 (de) | 1975-06-20 |
DE2455112A1 (de) | 1975-05-28 |
JPS5087097A (de) | 1975-07-12 |
DE2455112C2 (de) | 1986-11-27 |
GB1483192A (en) | 1977-08-17 |
FR2252612B1 (de) | 1978-06-16 |
AU7560674A (en) | 1976-05-27 |
JPS5738945B2 (de) | 1982-08-18 |
HK183A (en) | 1983-01-06 |
ZA747460B (en) | 1975-11-26 |
CA1038055A (en) | 1978-09-05 |
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