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8899401 Differential detection coin discrimination systems and methods for use with consumer-operated kiosks and the like  
Systems and associated methods for coin discrimination are disclosed herein. In one embodiment, a method for discriminating coins includes obtaining an electromagnetic sensor signal of a coin,...
8668069 Differential detection coin discrimination systems and methods for use with consumer-operated kiosks and the like  
Systems and associated methods for coin discrimination are disclosed herein. In one embodiment, a method for discriminating coins includes obtaining an electromagnetic sensor signal of a coin,...
8550227 Auto-positioning sensors for coin counting devices  
Systems and methods for automatically positioning a coin sensor are disclosed herein. An auto-positioning coin sensor configured in accordance with one embodiment of the disclosure includes a coin...
8490771 Coin recognition apparatus and coin recognition method  
In a coin recognition apparatus, when an oscillator control unit applies a synthesized signal containing signals of a plurality of designated frequencies to an oscillator coil, an AD...
7806248 System and method for coin validation  
A system for validating a coin has a passageway through which the coin passes, in use; an oscillator having a component positioned relative to the passageway for the frequency and amplitude of...
7520374 Coin discrimination apparatus and method  
A coin discrimination apparatus and method is provided. Coins, preferably after cleaning, e.g. using a trommel, are singulated by a coin pickup assembly configured to reduce jamming. A coin rail...
7048108 Currency validation apparatus and method  
A currency validator operates by comparing measured properties of inserted articles with acceptance criteria. A set of acceptance criteria can be either enabled or disabled automatically. Some...
6640955 Coin inspection method and device  
A coin inspection method and device of inexpensive composition are provided, whereby the shape of the edge portions of a coin and the indentations patterns on the surface of a coin can be...
6471030 Coin sensing apparatus and method  
A coin discrimination apparatus and method is provided in which an oscillating electromagnetic field is generated on a single sensing core. The oscillating electromagnetic field is composed on one...
6227343 Dual coil coin identifier  
The coin identification device comprises a gravity fed chute structure having an opening for receiving a coin to be identified, walls to guide the coin as it moves through the chute and an opening...
6056105 Device and method for discriminating a circular plate body such as a coin  
A device and method are set forth for determining the authenticity of a coin or token which includes a housing defining a passageway to pass the coin to be tested. Coils are disposed about the...
6039165 Methods for coin sorting, coin change mechanism, and public telephone operable therewith  
A public telephone that has the ability to return change to a user is described. A coin changer that is advantageously sized to fit within the space available in a public telephone built to...
5806651 Coin discrimination system  
A coin-sensing system wherein at least two sensor coils are electrically connected in series and physically arranged so that a coin deposited into the apparatus may pass sequentially through each...
5575057 Method of manufacturing a coin detector  
Coin detector may be manufactured in several steps. An integrated circuit board (ICB) having conductive material on its surface is covered with an etching mask where conductive elements are to be...
5568854 Coin discrimination method  
An electronic coin detector and method for sensing the presence of a valid coin and for providing an indication of the valid coin's type. A coin is guided into position between a first set of...
5444526 System for identifying or validating top crowns to be used as a means for activating a circuit  
A system is used to validate bottle caps, or top crowns, having particular reflectivity characteristics in plastic covering their undersides and in an alloy from which they are made. This permits...
5379876 Coin discrimination apparatus  
In coin discrimination apparatus, a coin under test rolls past first and second inductive sensors (C1, C2) which produce first and second coin signals (x1, x2) in dependence upon the coin under...
5353906 Metal body discriminating apparatus  
In a metal body discriminating apparatus of a simple structure and a high detecting accuracy for discriminating a material, a shape, a size, or the like of a metal body by the magnetical...
5351798 Coin discrimination apparatus and method  
An electronic coin detector and method for sensing the presence of a valid coin and for providing an indication of the valid coin's type. A coin is guided into position between a first set of...
5273151 Resonant coil coin detection apparatus  
A coin detection apparatus is disclosed which is particularly suitable for low power applications. The coin detection apparatus utilizes a detector coil as part of a resonant circuit. The resonant...
5244070 Dual coil coin sensing apparatus  
An apparatus for sensing coins is disclosed which is capable of distinguishing between valid and non-valid coins as well as between the different denominations of coins. The apparatus is useful...
5176380 Method and apparatus for identifying winning and losing tokens used in promotions  
In a preferred embodiment, method and apparatus for identifying winning and losing tokens used in a promotion which includes a machine in which one of such tokens is placed. An eddy current sensor...
5158166 Coin discrimination apparatus with compensation for external ambient conditions  
A coin validator includes improved compensation circuitry for compensating for ambient conditions such as temperature or the presence of metallic objects, includes a path (1) for passage for coins...
5028870 Sensor system method and apparatus for discrimination of metallic objects based on a variation in self inductance  
A device for discriminating metal in an object is provided including a sense coil and related circuitry, with variations in the self inductance of the sense coil being measured as the object is...
4895238 Coin discriminator for electronic parking meter  
A coin discriminator system for use in an electronic parking meter. A deposited coin is inserted in the electronic parking meter and a chute guides the deposited coin past an inductor. The...
4754862 Metallic article discriminator  
A multicoin tester has a coin inlet path 1 along which coins under test run edgewise past coils 2, 3 on opposite sides of the path, and through the windings of a coil 4. Electronic circuitry...
4705154 Coin selection apparatus  
A coin selection apparatus comprises a plurality of detection coils and an oscillation circuit which detects changes of impedances of the detection coils caused when a coin pass through the...
4696385 Electronic coin detection apparatus  
Electronic coin or token detector apparatus is provided in accordance with the teachings of the present invention wherein a predetermined parameter of a coin under test is measured to determine...
4664245 Coin chute assembly  
An improved coin chute assembly wherein the housing contains a coin receiving opening, a first coin exit opening, a second coin exit opening, and a coin passageway disposed therein and...
4662501 Coin checking  
The invention relates to a coin acceptor mechanism in which a coil (101) is wound on a former (102) having a central opening (104) of a shape corresponding to the outline of a coin (103) to be...
4574935 Coin checking method and apparatus employing wave train comparison  
A coin 12 to be checked is passed through a test coil 1 connected in parallel with a capacitor 2. A comparison coil 3 having an adjustable core 5 is also connected in parallel with a capacitor 4...
4488116 Inductive coin sensor for measuring more than one parameter of a moving coin  
An apparatus for use in identification of coins is disclosed in which a coin is passed through the electromagnetic field of an inductive coil wound on a ferrite core having two poles, at least one...
4448297 Ferromagnetic coin validator and method  
A sensing device determines whether the ferromagnetic properties of a standard acceptable coin are matched by a coin under test. The two are compared in a sensing device which consists of a pair...
4416364 Coin validating arrangement  
A coin validating arrangement for a coin operated machine, comprising a coin chute (5) having an upstream coil (8) for sensing a true coin and producing a Q signal output only when a true coin is...
4359148 Coin acceptor or rejector  
The present invention relates to an apparatus for accepting or rejecting a single type of coin, which is designed and constructed only to accept genuine coins of a particular value or...
4353453 Valid coin acceptor for coin actuated apparatus  
An improved coin acceptor mechanism employing an oscillator and a resonant circuit for detecting the electromagnetic effect of valid and invalid coins passing through a coil of the tuned circuit....
4334604 Coin detecting apparatus for distinguishing genuine coins from slugs, spurious coins and the like  
A coin, spurious coin and the like is passed in close proximity with the inductance of the resonant tank circuit of an oscillator and varies the losses of the tank circuit and thereby the...
4254857 Detection device  
A detector device adapted to be used for detecting coins and other metal objects for various purposes including to distinguish between genuine and non-genuine or counterfeit coins, the subject...
4124111 Coin inspecting apparatus  
In a coin inspecting apparatus wherein two secondary coils of a differential transformer are disposed along a coin passage and connected in series opposition, the secondary coils are disposed with...
4105105 Method for checking coins and coin checking apparatus for the performance of the aforesaid method  
A method of, and apparatus for, checking coins, wherein the coin to be checked is moved through a constantly regulated alternating-current field of a measuring coil. The influence of the coin upon...
3980168 Method and apparatus for authenticating and identifying coins  
In a coin selector, a coin moving in a nearly vertical path under the influence of gravity is first tested to determine whether it is made of a ferromagnetic or non-ferromagnetic, conductive...
3962627 Electronic apparatus for testing moving coins employing successive time significant sensings of the effects of proximity of a coin under test to inductive impedance elements upon the effective impedances thereof  
An improved method and apparatus for testing coins, metallic credit tokens and similar objects, capable of determining both type or denomination and genuineness thereof, utilize the effect upon...
3956692 Metal object comparator utilizing a ramp having a V-shaped slot for mounting the object accurately within the test coil  
A radio frequency oscillator circuit has its tuning circuit coil mounted so as to conveniently receive an object to be tested in preselected precisely defined positions proximate to the windings...
3796295 ELECTRONIC METAL COIN ANALYSER  
The novel electronic metal coin analyzer is disclosed wherein a coin to be analyzed falls through an inductance coil which is coupled to the resonance circuit of an oscillator. As the coil falls...
3749220 COIN DISCRIMINATING APPARATUS  
The coin discriminating apparatus comprising a bridge circuit including an electromagnetic detection coil, a reference element, a bandpass filter connected to the output of the bridge circuit, an...
3596744 COIN-TESTING APPARATUS  
A coin tester for vending machines in which the coin to be tested forms a core to concentrate the magnetic flux between a first coil provided with a constant voltage AC current, and a second...
3587809 COIN TESTER WITH SLOTTED COIN GUIDE DUCT  
3401780 Electrical coin tester  
3379969 Magnetic bridge means for detecting the electrical properties of substances  
3378126 Coin-actuated credit-storing device  
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