Kabushiki Kaisha Nippon Conlux

Nippon Conlux Co., Ltd.

Yonezo Furuya

Osamu Kobayashi

Ichiro Fukuda

Yukichi Hayashi

Masaki Akagawa

Genzo Yoshizawa

Ichiroh Fukuda

Takeshi Ishida

Kenji Nishiumi

Koichi Yamazaki

Kazuo Noda

Susumu Kojima

Osamu Sugimoto

Yasuyuki Kimura

Shusuke Sumi

A coin inspection method and apparatus capable of inspecting coins having different materials and surface patterns with high accuracy by a simple coil arrangement. An exciting coil is arranged in the vicinity of one side of a coin passage inclined at a predetermined angle so that two magnetic poles thereof face the coin passage. Two receiving coils having substantially identical characteristics are arranged in the vicinity of the same side of the coin passage so that the receiving coils are electromagnetically coupled with the exciting coil. The exciting coil is excited at a predetermined frequency and an oscillation voltage of the exciting coil is detected. Also, an influence of a reactive magnetic field produced by eddy current induced on a surface of the coin is detected by the receiving coil. Material of the coin can be determined based on the oscillation voltage level of the exciting coil. The degree of the reactive magnetic field differs depending on a difference in surface irregularity of the coin, so that the coin can be discriminated based on the difference in irregularity. The apparatus is simple in construction and thus manufacturable at low cost.

Coin inspection method and apparatus therefor

An apparatus adapted for testing, in a non-contact manner, true/false property of bill, coin or magnetic card to be tested, comprises a non-contact type magnetic sensor disposed, at a predetermined position of a carrying passage of the bill, in a manner close to the carrying path, and a testing circuit for testing true/false property of the bill on the basis of a signal outputted from the magnetic sensor according as the bill is carried along the carrying passage. This testing apparatus permits improvement in the security and prevention of wear of bill and the apparatus itself.

Method and apparatus for taking out information using magnetic sensor and carrying out test of article by using that information

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 inspected with a high level of accuracy by means of a simple, single group of coils. Detecting coils generating a double-peak shaped magnetic field are formed by providing a first detecting coil and a second detecting coil respectively on two adjacent leg sections of a comb-shaped core, wherein a plurality of leg sections are disposed in approximately linear fashion at prescribed intervals, and the first detecting coil and the second detecting coil are excited in such a manner that the magnetic fluxes generated at the magnetic poles formed by the two leg sections repel with each other; a coin under inspection is caused to pass through the double-peak shaped magnetic field generated by the detecting coils; and the authenticity of the coin under inspection is identified on the basis of the changes in the impedance generated by the detecting coils during the passage of the coin under inspection.

Coin inspection method and device

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 te exciting coil. The exciting coil is excited at a predetermined frequency, and an influence of a demagnetizing or reactive magnetic field caused by eddy current induced on the surface of a coin is detected by the receiving coils. The level of the demagnet or reactive magnetic 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 regularity pattern.

Method and device for checking coin for forgery

A method and device for detecting a coin, wherein one of a plurality of coils (,) is selectively connected to an oscillation unit (,) via a switching unit (,) and a coin is detected based on an output from an oscillation circuit comprising the connected coil (one of,) and the oscillation unit (,).

Method and device for detecting coin

An apparatus adapted for testing, in a non-contact manner, true/false property of bill, coin or magnetic card to be tested, comprises a non-contact type magnetic sensor,disposed, at a predetermined position of a carrying passage of the bill, in a manner close to the carrying path, and a testing circuit,for testing true/false property of the bill on the basis of a signal outputted from the magnetic sensor according as the bill is carried along the carrying passage. This testing apparatus permits improvement in the security and prevention of wear of bill and the apparatus itself.

Apparatus for taking out information using magnetic sensor and carrying out test of article by using that information

The current invention is an apparatus and method for determining types of recorded data cards, capable of shortening card processing time, preventing card deterioration such as damage to the cards, and correctly processing recorded data cards. An apparatus for determining types of recorded data cards, without contacting the cards, has non-contacting magnetic sensors (10), which are provided adjacent to a carry path of the recorded data cards at predetermined positions thereon, and determining elements (12.about.16) for determining the types of the cards, as the cards are carried along the carry path, based on signals output from the magnetic sensors.

Apparatus and method for determining types of recorded data cards

In a tracking or focusing servo control loop, there are provided a switch element for switch-controlling a tracking or focusing error signal, and a smoothing circuit for switching passage the error signal. An amount of detected reflection from an optical recording medium is monitored by a controller section, and the switching action of the switch element is ON/OFF-controlled by the controller section so as to maintain a servo loop gain at a predetermined standard. Thus, it is possible to maintain a constant servo loop gain without being influenced by variation in the laser light amount or difference in reflectivity characteristics of the recording layers of individual optical recording media, and constantly stable tracking servo control and/or focusing servo control can be performed.

Optical recording and reproducing system using servo control, switches

The present invention provides a coin-identifying method that is fast and that can reject any counterfeit coin that closely resembles a genuine coin, or a counterfeit coin that has a distribution that partially overlaps into a genuine-coin identification region, without reducing the acceptance ratio of genuine coins. It also provides an inexpensive apparatus that utilizes this method. The method and apparatus of the present invention perform a identification in which a first region is set to define a comparison reference for values measured by a first sensor and a second sensor that detect characteristics of a coin, a second region is set in such a manner as to partially overlap the first region, a preliminary identification is performed using this second region to determine whether the coin is a counterfeit. If the identification result is such that the coin is not determined to be a counterfeit, the first region is then used for further identification.

Coin-distinguishing method and apparatus therefor

There is provided a method and apparatus for discriminating between true and false coins wherein a coin satisfying both the electrical success conditions at their lowest levels is regarded as a false coin, and a coin satisfying at least one of the two electrical success conditions at a high level is regarded as a true coin. According to the method discriminating apparatus is mounted relative to a predetermined passage along which a coin or the like to be discriminated passes, wherein true/false discrimination is carried out in accordance with whether or not the two or three different data detected from the coin and developed on a two- or three-dimensional coordinate system falls within a predetermined two- or three-dimensional function closed area. The apparatus includes: a coin passage along which a coin to be discriminated passes; exciting units mounted relative to the coin passage for exciting the coin passing along the coin passage; detecting units for detecting the state of the coin excited by the exciting units; and a unit for discriminating the coin between true and false in accordance with whether or not the data detected by the detecting units falls within a predetermined two or three-dimensional function closed area on a predetermined two or three-dimensional coordinate system.

Method and apparatus for discriminating between true and false coins or

A controller for a vending machine capable of selecting a mode in which the machine is made possible to sell commodities even if change lacks. If a forced acceptance switch sets a forced acceptance mode, put-in coins are accepted even if no change can be paid. When the sum of the put-in coins arrives at a predetermined set selling price, the controller generates a selling enable signal. If the machine sells a commodity in response to the selling enable signal, it pays out change in the range of the sum in which change can be paid or within the sum of the coins remaining in change coin tubes. In this case, if the coins remaining in the change coin tubes do not satisfy the required sum of change, the overall sum of change is not paid out, but a user of the machine can get a desired commodity.

Controller for vending machine

A classification accuracy setting device and a method therefor of a coin selector used in an automatic vending machine, a money exchanger and other various automatic service apparatuses. In accordance with the operation of the device, a reed switch is turned on to set a classification accuracy selection mode, the number of coins of each denomination received in this mode is counted, and reference values of classification accuracies which have been stored in a memory are rewritten in response to the counted number.

Classification accuracy setting device for a coin selector

A coin selecting apparatus includes a coin detection coil disposed in a coin channel for outputting a coin detection signal having a waveform changing gradually as the coin passes in the channel and uniquely accordance with the kind of the coin, and window device having a plurality of different windows for corresponding coins to be detected for producing a pulse signal when the coin detection signal is in a window. A timer device monitors the time duration of the pulse signal to thereby determine the validation and kind of the coin in accordance with the output from the timer device. A counter counts pulse signals produced by the window device to thereby determine the validation and kind of the coin in accordance with the count therein.

Coin selecting apparatus

A coin selector comprises a first receiving coil and a first exciting coil disposed along one side of a coin path, a second receiving coil and a second exciting coil disposed along the other side of the coin path facing the first receiving coil and the first exciting coil, and drive devices for exciting and driving the first and second exciting coils. A magnetic field developed by the first exciting coil acts on the first and second receiving coils and a magnetic field developed by the second excitign coil acts on the second and first receiving coils. The coin selector further comprises judging devices. When a coin is put into and passes through the coin path, the magnetic fields presented to the first and second receiving coils change and consequence a change in the output voltages of these coils. The judging devices judge the coin passing through the coin path on the basis of the sum of the output signals of the first and second receiving coils.

Coin selector

A coin to be judged is passed near an oscillation coil excited by an exciting signal containing a plurality of harmonic components, that is nonsinusoidal alternating current, and the coin is sorted in accordance with a signal produced by a receiving coil electromagnetically coupled with the oscillation coil and containing at least two harmonic components. The signal induced in the receiving coil may be a composite signal of at least two harmonic components. This signal may consist of a first signal of a composite of at least two harmonic components and a second signal of a composite of at least two other harmonic components.

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Hatoyama-machi, Japan

Yonezo Furuya