EP1847971B1 - Dispositif de traitement du support - Google Patents

Dispositif de traitement du support Download PDF

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Publication number
EP1847971B1
EP1847971B1 EP06015758.3A EP06015758A EP1847971B1 EP 1847971 B1 EP1847971 B1 EP 1847971B1 EP 06015758 A EP06015758 A EP 06015758A EP 1847971 B1 EP1847971 B1 EP 1847971B1
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EP
European Patent Office
Prior art keywords
light
foreign matter
detecting mechanism
emitting body
magnetic
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.)
Not-in-force
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EP06015758.3A
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German (de)
English (en)
Other versions
EP1847971A1 (fr
Inventor
Kenji c/o NIDEC Sankyo Corporation Hirasawa
Kazutoshi c/o NIDEC Sankyo Corporation Ishikawa
Yasuhiro c/o NIDEC Sankyo Corporation Kitazawa
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Nidec Instruments Corp
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Nidec Sankyo Corp
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Publication of EP1847971A1 publication Critical patent/EP1847971A1/fr
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20—Automatic teller machines [ATMs]
    • G07F19/205—Housing aspects of ATMs
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20—Automatic teller machines [ATMs]
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20—Automatic teller machines [ATMs]
    • G07F19/205—Housing aspects of ATMs
    • G07F19/2055—Anti-skimming aspects at ATMs

Definitions

  • the present invention may relate to a medium processing device which is provided with a function for preventing illegal reading (illegal reading preventing function) from a magnetic card.
  • a magnetic card reader which performs reading and writing magnetic data from and on a magnetic card is commonly mounted in an ATM or the like, which is, for example, installed in a bank.
  • the magnetic card reader includes a card slot for inserting and ejecting a magnetic card, a detector for detecting the magnetic card which has been inserted from the card slot, a card introducing passage on which the magnetic card inserted from the card slot is guided to the inside of the magnetic card reader, and a shutter for opening or closing the card introducing passage.
  • a user inserts a tip end of a magnetic card into the card slot. Then, the insertion of the magnetic card is detected by the detector, and the shutter having closed the card introducing passage is opened and, at the same time, the magnetic card is taken into the inside of the magnetic card reader by rollers provided in the card introducing passage. In the magnetic card reader, the taking-in operation of a magnetic card is performed in this manner.
  • the illegal reading device is disposed at the front (outside) of the card slot of the magnetic card reader and provided with a magnetic head for illegally reading information recorded on the magnetic card.
  • a magnetic card is inserted into the card slot (a pseudo-card slot) of the magnetic card reader on which an illegal reading device is mounted, information recorded on the magnetic card is read by the magnetic head without being perceived by a user.
  • a magnetic card transaction device has been disclosed, for example, in Japanese Patent Laid-Open No. 2001-67525 .
  • the magnetic card transaction device disclosed in this reference is provided with a reflecting type photo sensor which detects a foreign matter (illegal reading device) fitted to the vicinity of the card slot.
  • the reflecting type photo sensor is disposed on the inner side of a front panel which partitions the outside from the inside of the device.
  • a light-transmitting hole for detecting a foreign matter is formed on a front side of the reflecting type photo sensor in the front panel.
  • the magnetic card transaction device structured as described above in the event that a foreign matter is fitted to the vicinity of the card slot, the light quantity of a light beam, which is emitted from a light emitting body and is incident on the reflecting type photo sensor through the light-transmitting hole, is varied and thus the fitting of the foreign matter can be detected. Therefore, in this case, an alarm signal is transmitted to a host device, or a shutter that opens or closes a card introducing passage has been kept closed, and thus illegal reading from a magnetic card can be prevented.
  • an erroneous detection due to external (outside) light such as sunlight or indoor fluorescent lamps may occur depending on the environment where the magnetic card reader is installed.
  • WO 2005/001598 A2 and US2004/0178258 each describe a medium processing device in the form of an automated banking machine comprising a front panel formed with an aperture where a magnetic recording medium is inserted into or ejected from and which partitions an outside of the device from an inside of the device; a magnetic head which is provided in the inside of the device for writing or reading information in or from the magnetic recording medium; and a foreign matter detecting mechanism which is provided on an inner side of the device with respect to a housing bounding the aperture for receiving the magnetic recording medium and which is used for detecting a foreign matter that is attached to the outside of the device.
  • the foreign matter detecting mechanism comprises a light emitting body which emits light used for sensing the presence of a foreign matter, in particular an unauthorized card reading device, adjacent to the magnetic recording medium receiving aperture and a light receiving sensor which receives the light.
  • the light emitting body emits invisible light.
  • the light is non-visible light, such as infrared light.
  • EP 1 067 474 A2 describes a magnetic card transaction apparatus comprising a front panel with a card slot through which a magnetic card is insertable, a card transferring means for transferring said magnetic card, a shutter means which opens or closes a card guiding path from the card slot to the card transferring means, and a magnetic head which is provided in the inside of the device for writing or reading information in or from the magnetic card.
  • a magnetic pre-head for detecting a magnetic strip formed in the magnetic card when the magnetic card is inserted, and a control means for controlling transferring of the magnetic card are provided, wherein the control means prevents an illegally attached magnetic head from reading information on an inserted magnetic card by temporarily stopping or reversing transfer direction of the magnetic card.
  • a foreign matter detector is attached on the back side of the front panel in the vicinity of the card slot to detect, whether a foreign matter is attached to the front surface of the front panel.
  • the foreign matter detector employs an optical reflective sensor, which detects a foreign matter on the front surface through a detection opening formed from the outside to the inside through the front panel.
  • an embodiment of the present invention may advantageously provide a medium processing device in which a sensor for detecting a foreign matter is set to be difficult to be recognized from the outside to improve the illegal reading preventing function and which is capable of improving reliability by reducing an erroneous detection due to the external light.
  • the present invention is defined in independent claim 1; preferred embodiments are subject-matter of dependent claims.
  • a medium processing device comprising a front panel which is formed with an aperture where a magnetic recording medium is inserted into or ejected from and which partitions an outside of a device from an inside of the device, a magnetic head which is provided in the inside of the device for writing or reading information in or from the magnetic recording medium, a foreign matter detecting mechanism for utilizing an invisible light to detect a foreign matter that is attached to the outside of the device; a pre-head which is provided on an inner side of the device with respect to the front panel for checking whether magnetic data is present in the magnetic recording medium; a shading filter which is provided in at least one part of the front panel for shading visible light and transmitting the invisible light utilized by the foreign matter detecting mechanism, wherein the foreign matter detecting mechanism is provided between the shading filter and the pre-head.
  • the foreign matter detecting mechanism comprises a light emitting body which emits invisible light and a light receiving sensor which receives the invisible light, and the shading filter makes it difficult that the foreign matter detecting mechanism is visually confirmed from the outside
  • the medium processing device includes a front panel formed with an aperture and partitioning the outside of a device from the inside of the device, a magnetic head provided in the inside of the device, a (visible light) shading filter provided in at least one part of the front panel, and a foreign matter detecting mechanism which is provided on an inner side of the device with respect to the shading filter for detecting a foreign matter that is attached to the outside of the device. Therefore, since the shading filter is provided, it is difficult that the foreign matter detecting mechanism is visually confirmed from the outside.
  • the possibility that the foreign matter detecting mechanism is recognized from the outside is reduced and the illegal reading preventing function (security performance) can be improved.
  • the shading filter is provided with a visible light blocking function, an erroneous detection in the foreign matter detecting mechanism due to visible light can be reduced to improve reliability.
  • shading visible light means that visible light is completely shaded and, in addition, that the visible light is partly shaded.
  • shading in this specification means that the shading rate is less than 100% in addition that the shading rate is equal to 100%.
  • foreign matter detecting mechanism may be structured with any means which is capable of detecting a foreign matter that is attached to the outer side of the device, and may utilize, for example, a photo reflector, a microwave sensor, a metal detection sensor or the like.
  • the foreign matter detecting mechanism comprises a light emitting body for emitting invisible light and a light receiving sensor for receiving the invisible light, and the shading filter transmits the invisible light.
  • the foreign matter detecting mechanism comprises a light emitting body (light emitting element) for emitting invisible light (infrared light, for example) and a light receiving sensor (light receiving element) for receiving the invisible light, and the shading filter transmits the invisible light. Therefore, it can be detected that a foreign matter is attached by means of that, when the light emitting body is turned on, the variation of the light quantity received by the light receiving sensor is detected. In addition, it becomes difficult by using the shading filter that the light emitting body and the light receiving sensor are visually confirmed from the outside. Accordingly, the illegal reading preventing function (security performance) can be improved.
  • the invisible light is infrared light.
  • the invisible light is infrared light. Therefore, for example, with the use of a widely spread infrared LED, the illegal reading preventing function can be simply improved at a low cost.
  • the foreign matter detecting mechanism comprises a light emission control section for controlling the light emitting body and a comparing section for comparing an emitted light from the light emitting body with a received light in the light receiving sensor.
  • the foreign matter detecting mechanism comprises a light emission control section for controlling the light emitting body and a comparing section for comparing an emitted light from the light emitting body with a received light in the light receiving sensor. Therefore, when the light emitting body is turned on (light is emitted) by the light emission control section, a characteristic difference between the emitted light from the light emitting body and the received light in the light receiving sensor (for example, a difference of the light quantities, a difference of the time periods of the lights or a difference of the timings of the lights) can be detected by the comparing section. Accordingly, the foreign matter can be accurately detected.
  • the light emitting body in the foreign matter detecting mechanism is turned on an off flickeringly at random or pseudo-random time intervals and, when the light receiving sensor receives the invisible light at time intervals that coincide with the time intervals of the emitted light from the light emitting body, it is judged that a foreign matter is attached to the outside of the front panel.
  • the light emitting body in the foreign matter detecting mechanism is turned on and off flickeringly at random or pseudo-random time intervals and, when the light receiving sensor receives the invisible light at time intervals that coincide with the time intervals of the emitted light from the light emitting body, it is judged that a foreign matter is attached to the outside of the front panel. Therefore, the attachment of a foreign matter can be accurately detected.
  • the light receiving sensor receives the invisible light depending on the artificial timing of the emitted light from the light emitting body, which is flickeringly turned on or off at random or pseudo-random time intervals, it is judged that the possibility that the received light is natural light such as sunlight is extremely low and thus it can be accurately determined that a foreign matter is attached.
  • light is emitted from the light emitting body in the foreign matter detecting mechanism at the timing of turning on a power source of the device, and when an output of received light in the light receiving sensor is not more than a specified value, it is judged that abnormality occurs in the foreign matter detecting mechanism.
  • the medium processing device in accordance with this embodiment is provided with a self-diagnosis function for failure.
  • the light emitting body of the foreign matter detecting mechanism for emitting invisible light is provided in the outside of the device.
  • the foreign matter detecting mechanism comprises a light receiving sensor for receiving the invisible light and a light emitting body for emitting invisible light is provided in the outside of the device. Therefore, the exchange of the light emitting body can be easily performed and thus versatility is enhanced. Further, the light emitting body provided in the outside of the device is effectively utilized and only the light receiving sensor is provided in the inside of the device, and thus cost can be reduced.
  • the foreign matter detecting mechanism performs detection for a foreign matter in a waiting state for insertion of the magnetic recording medium or at a time when the insertion of the magnetic recording medium is detected.
  • the foreign matter detecting mechanism performs detection for a foreign matter in a waiting state for insertion of the magnetic recording medium or at a time when the insertion of the magnetic recording medium is detected. Therefore, the detection for a foreign matter is performed, for example, whenever a card is used in the medium processing device and thus the illegal reading preventing function (security performance) can be improved.
  • the magnetic recording medium is a card having a magnetic stripe
  • a detection region of the foreign matter detecting mechanism is set to be a region which faces a passage of the magnetic stripe of the card.
  • the detection region of the foreign matter detecting mechanism is set to be a region which faces a passage of the magnetic stripe that is provided on a surface of the magnetic recording medium (magnetic card). Therefore, the accuracy of the illegal reading preventing function can be enhanced.
  • the position of the magnetic stripe of a magnetic card is determined by the technical standard, and thus a foreign matter is assumed to be attached to the vicinity of the passage of the magnetic stripe of a magnetic card. Accordingly, the region that faces the passage of the magnetic stripe of a magnetic card is set to be a detection region for the foreign matter detecting mechanism to accurately detect the attachment of a foreign matter.
  • a warning is notified to a user or to a host device or a processing to the magnetic recording medium is suspended when the foreign matter detecting mechanism detects the foreign matter.
  • a warning is notified to a user or to a host device or a processing to the magnetic recording medium is suspended when the foreign matter detecting mechanism detects the foreign matter. Therefore, it can be prevented information recorded in a magnetic recording medium from being read out by a foreign matter in advance, and thus the illegal reading preventing function can be improved.
  • the illegal reading preventing function can be improved. Further, an erroneous detection due to external light is reduced to enhance the reliability for the detection of a foreign matter.
  • Fig. 1(a) is a perspective view showing a mechanical structure of a card reader 1 in accordance with an embodiment of the present invention.
  • Fig. 2(a) is a front view showing the card reader 1 shown in Fig. 1(a) that is viewed from the front side and
  • Fig. 2(b) is its plan view that is viewed from above.
  • a card reader is used as a medium processing device, but the present invention is not limited to a card reader.
  • Fig. 1(a) and Figs. 2(a) and 2(b) illustrate the front portion of the card reader 1.
  • the card reader 1 is provided with a front panel 10 in which an opening 10a for inserting or ejecting a magnetic card is formed and which partitions the outside from the inside of a device.
  • a front panel 10 in which an opening 10a for inserting or ejecting a magnetic card is formed and which partitions the outside from the inside of a device.
  • the opening 10a functions as a card slot for inserting and ejecting a magnetic card.
  • any arranging area, shape, size and the like of the front panel 10 may be utilized when the front panel 10 partitions the inside of the device from the outside and is capable of permitting the insertion and the ejection of a magnetic card into and from the opening 10a.
  • an opening portion including the opening 10a (slot) may be formed, as shown in Fig. 1(b) , to be the same shape as that shown in Fig. 1(a) , or the opening portion may be formed in a flat face shape as shown in Fig. 1(c) .
  • a photo reflector 50 (see Fig. 3 ) described below is preferably positioned near the opening (see the photo reflector 50 at a middle position in Fig. 1(d) ) but the photo reflector 50 may be positioned apart from the opening, for example, at the upper or the lower position as shown in Fig. 1(d) .
  • a magnetic head for writing or reading information on or from a magnetic card is provided in the inside of the device.
  • a magnetic head which is invisible in Fig. 1(a) or Figs. 2(a) and 2(b) , is disposed under a feeding roller 11 through a feeding passage.
  • the writing or reading of information is performed by the magnetic head that contacts with and slides on a magnetic stripe of the magnetic card.
  • the magnetic head includes, for example, a magnetic core which is disposed so as to sandwich a gap (spacer), a winding coil for writing which is wound around the magnetic core, a winding coil for reading which is wound around the magnetic core, and a case which houses the magnetic core, the winding coil for writing and the winding coil for reading.
  • a width detection switch 15 for detecting a length in a widthwise direction of the magnetic card is turned “ON”.
  • a shutter solenoid 12 (see Fig. 2(a) ) is actuated to open a shutter 18 that has closed the feeding passage (see Fig. 3 ) and, as a result, a shutter opening and closing switch 14 (see Fig. 2(a) ) is tuned "ON”.
  • the rotating operation of a take-in roller 16 (see Fig. 2(b) ) arranged in the feeding passage is started to take the magnetic card into the inside of the card reader 1. In this manner, the taking-in operation of the magnetic card is performed in the card reader 1.
  • an illegal device (skimmer) 20 for illegally reading information which is recorded on a magnetic card is attached on the front side of the front panel 10 of the card reader 1.
  • a photo reflector 50 (see Fig. 3 ) described below is provided as an example of a foreign matter detecting means for detecting the skimmer 20 being attached.
  • a shading filter 13 for shading visible light is arranged in a part of the front panel 10. Positional relationship between the photo reflector 50 and the shading filter 13 is described in detail with reference to Fig. 3 .
  • Fig. 3 is a longitudinal sectional view showing the card reader 1 shown in Fig. 1(a) which is longitudinally cut so as to include the shading filter 13 and the skimmer 20.
  • the width detection switch 15 is used as a trigger for opening or closing the shutter 18.
  • a pre-head 17 magnetic head
  • the pre-head 17 recognizes the card as a card on which magnetic data is not present and thus transactions may be prohibited. Therefore, in this embodiment, both the width detection switch 15 and the pre-head 17 are used.
  • a skimmer 20 having a magnetic head 21 for illegally reading information recorded in a magnetic card is mounted on the front side of the front panel 10 of the card reader 1 (left side in Fig. 3 ).
  • the position of a magnetic stripe on the surface of a magnetic card is determined by the ISO specification (standard) and thus the position where the skimmer 20 is attached can be estimated by taking into consideration of the height of the card feeding passage.
  • a photo reflector 50 for detecting the skimmer 20 is disposed at a position shown in Fig. 3 .
  • the detection region by the photo reflector 50 is set to be a region where the photo reflector 50 faces a passing route of the magnetic stripe of a card.
  • the disposed position of the photo reflector 50 is at the front of the pre-head 17.
  • a combination of a photo-diode (photo-transistor) and an LED may be used as another foreign matter detecting means.
  • the photo reflector 50 is used as a foreign matter detecting means and thus mounting space can be reduced.
  • an LED light source of the photo reflector 50 is preferably an infrared LED.
  • a coating for blocking a light with a wavelength other than the infrared light may be applied to a light receiving sensor 50b of the photo reflector 50 (see Fig. 6 described below). According to the structure described above, a light other than the infrared light which is incident on the light receiving sensor 50b from the outside can be prevented.
  • a shading filter 13 for blocking visible light and transmitting infrared light is disposed in front of the photo reflector 50. Specifically, as shown in Fig. 4 , the shading filter 13 is separately fitted to the front panel 10 as one part of the front panel 10 (see the arrow "X" in Fig. 4).
  • Fig. 4 is a perspective view showing a state where the shading filter 13 is fitted to the card reader shown in Fig. 1(a) .
  • the shading filter 13 is provided as one part of the front panel 10 but may be, for example, provided in the entire lower portion (spread portion or throat portion) which forms one part of the opening 10a in the front panel 10 as shown in Figs. 5(a) and 5(b).
  • Figs. 5(a) and 5(b) are perspective views showing other arrangements of a shading filter.
  • Fig. 5(a) when the entire lower portion is formed with the shading filter 13, an illegal person cannot recognize which portion is formed with a shading filter (see Fig. 5 (b) ) when the shading filter 13 is mounted on the front panel 10 (see the arrow "Y" in Fig. 5(a) ). In this manner, the security can be improved.
  • Fig. 6 is a block diagram showing an electrical circuit relating to the photo reflector 50.
  • An LED on/off control circuit 51, an A/D converter circuit 53 and a CPU 54 are disposed on a control board (not shown) in the card reader 1 and other electrical elements are disposed on a sensor circuit board 60 shown in Fig. 3 .
  • an operational amplifier OP in Fig. 6 may be disposed on the above-mentioned control board and the electrical arrangement may be adequately modified.
  • the photo reflector 50 is structured of a light emitting body 50a which emits infrared light and a light receiving sensor 50b for receiving the infrared light.
  • a cathode of the light emitting body 50a is connected with a collector terminal of a transistor T R 1 .
  • a control signal from the LED on/off control circuit 51 is inputted to a base terminal of the transistor T R through a base resistor R 1 .
  • a pull-down resistor R 2 is connected between the base terminal and an emitter terminal of the transistor T R 1 for preventing the input to the transistor T R 1 from being in an opened state and the emitter terminal of the transistor T R 1 is connected to the earth.
  • an anode of the light emitting body 50a is connected with a power source 52 through a load resistor R 3 .
  • An anode of a light receiving sensor 50b is connected to the earth and a cathode of the light receiving sensor 50b is connected with an inverting input terminal of the operational amplifier OP.
  • a non-inverting input terminal of the operational amplifier OP is connected to the earth.
  • a parallel circuit comprised of a feedback resistor R 4 and a capacitor C is connected between the inverting input terminal and an output terminal of the operational amplifier OP.
  • a sensor output from the operational amplifier OP is passed through the A/D converter circuit 53 to be digitized and inputted to the CPU 54.
  • the LED on/off control circuit 51 functions as an example of a light emission control section which controls the emission of light from the light emitting body 50a.
  • the CPU 54 functions as an example of a comparing section which compares the received light in the light receiving sensor 50b with the emitted light from the light emitting body 50a.
  • FIG. 7 is a flow chart showing the flow for detecting a foreign matter.
  • Figs. 8(a) through 8(d) are waveform diagrams showing sensor outputs of the photo reflector 50 which are detected in the CPU 54 when a foreign matter is to be detected.
  • Fig. 8(a) is a waveform diagram when a skimmer 20 is attached
  • Fig. 8(b) is a waveform diagram when a skimmer 20 is not attached
  • Fig. 8(c) is a waveform diagram when an erroneous detection is occurred by external light
  • Fig. 8(d) is a waveform diagram when external light is present but an erroneous detection is not occurred.
  • a count-up of a variable showing a detection number of times is performed (step S1). More specifically, the LED on/off control circuit 51 counts up (increment) a variable "Nd" by one in a memory region such as a memory (RAM or the like) arranged in the inside of the LED on/off control circuit 51. In this manner, "1" is substituted for the variable "Nd" whose initial value is "0".
  • the LED on/off control circuit 51 performs an LED lighting (turn on) processing after having waited with an indefinite (irregular) interval (step S2). More specifically, the LED on/off control circuit 51 has determined a plurality of random time intervals (intervals of T 1 second, T 2 second, T 3 second, T 4 second, ... ) in advance by using, for example, a random number generator provided in the inside of the LED on/off control circuit 51 and stored them in the memory. Then, the LED on/off control circuit 51 waits until a first time interval (the interval of T second) determined above has passed.
  • a control signal (ON signal) is transmitted to the transistor TR 1 to turn on the transistor TR 1 and a collector current is supplied to the light emitting element 50a. Therefore, the light emitting body 50a is turned on or lighted (step S3).
  • step S4 a count-up of a variable "Non” which means the lighting number of times of the LED is performed. More specifically, similarly to the step S1, a count-up of the variable “Non” is performed in a memory region of a memory provided in the inside of the LED on/off control circuit 51. In this manner, "1" is substituted for the variable "Non” whose initial value is "0".
  • step S5 the measurement of the output of the light receiving sensor 50b is performed (step S5). More specifically, when the LED is turned on by the LED on/off control circuit 51, the CPU 54 detects a sensor output (digital data) of the photo reflector 50 which is obtained through the operational amplifier OP and the A/D converter circuit 53.
  • step S6 it is judged whether the sensor output (output level) which is measured in the step S5 is not less than a predetermined slice level (predetermined voltage) or not (step S6). More specifically, the CPU 54 judges whether the sensor output is not less than the predetermined slice level or not.
  • the CPU 54 detects a sensor output from the photo reflector 50 (see the arrow "A" in the drawing) immediately after the LED is first lighted (ON). In this case, a reflected light is occurred by the skimmer 20 and thus it is judged that the sensor output is not less than the predetermined slice level and the Result of "YES" is obtained by the processing of the step S6.
  • step S11 the LED on/off control circuit 51 performs an LED turning-off processing. More specifically, the LED on/off control circuit 51 waits until the time interval T 2 has passed and then, when it is judged that the time interval T 2 has passed, the transmission of the control signal to the transistor T R 1 its stopped (in other words, an OFF signal is transmitted). As a result, the transistor TR 1 its turned off and thus a collector current is not supplied to the light emitting body 50a to cause the light emitting body 50a to be turned off (step S11).
  • step S12 a count-up of a variable "Noff” that means the turning-off number of times of the LED is performed (step S12) and the measurement of the output of the light receiving sensor 50b is performed (step S13). Then, it is judged whether the sensor output (output level) which is measured in the step S13 is not more than a predetermined slice level (predetermined voltage) or not (step S14). More specifically, the CPU 54 judges whether the sensor output is not more than the predetermined slice level or not.
  • the CPU 54 detects the sensor output of the photo reflector 50 (see the arrow "B" in Fig. 8(a) ) immediately after that the LED is first turned off (OFF). In this case, the reflected light from the skimmer 20 does not occur and, in Fig. 8(a) , it is assumed that a level shift due to external light is not occurred, in other words, the entire sensor output is not increased by a constant value by the external light.
  • step S18 it is judged whether the variable "Nd" which means the detected number of times is not less than a predetermined specified value or not (step S18). More specifically, the LED on/off control circuit 51 judges whether the variable Nd (current value is "1") is not less than the predetermined specified value or not.
  • the predetermined specified value is "4" and thus the first processing of the step S18 results in "NO” and the processing is returned to the step S1.
  • the processing of the step S1 through the step S6, the step S10 through the step S14, and the step S18 is repeated three times in total.
  • the measurements of the sensor output in the step S5 and the step S13 are performed as shown in Fig.
  • the CPU 54 judges that the skimmer 20 is attached in the card reader 1 (step S19). In this manner, it is detected that the skimmer 20 is attached.
  • a warning is transmitted to its host device (ATM or the like). Further, the CPU 54 and the LED on/off control circuit 51 are transmitted and received information to and from each other and are capable of communicating data required to detect a foreign matter with each other.
  • the sensor output of the photo reflector 50 is not less than (or not more than) the predetermined slice level or not (see the step S6 and the step S14).
  • a memory RAM or the like may be connected with the CPU 54 and, after the data has been accumulated in the memory, the data may be collectively judged later.
  • Fig. 7 firstly, the processing of the step S1 through the step S5 is performed. Then, since the skimmer 20 is not attached in the card reader, the result of "NO" is obtained by the processing of the step S6.
  • the CPU 54 detects the sensor output of the photo reflector 50 (see the arrow "A" in the drawing) immediately after that the LED is lighted (turned ON) first. However, in this case, since there is no reflected light from the skimmer 20, it is judged that the sensor output is not more than a predetermined slice level and the result of "NO" is obtained by the processing of the step S6.
  • step S7 it is judged whether the variable "Non” showing the lighting number of times of the LED is not less than the predetermined specified value or not (step S7). More specifically, the LED on/off control circuit 51 judges whether the variable "Non” (current value is "1") is not less than the predetermined specified value or not. In accordance with an embodiment shown in Fig. 7 , since the predetermined specified value is "4", the first processing of the step S7 indicates "NO" and, after the light emitting element 50a is turned off (step S9), the process is returned to the step S2.
  • the processing of the step S2 through the step S6 is repeated three times in total.
  • the measurements of the sensor output in the step S5 are performed as shown in Fig. 8(b) such that the arrow "A” shows the first measurement, the arrow “B” shows the second measurement, the arrow “C” shows the third measurement, and the arrow "D” shows the fourth measurement.
  • step S7 When the fourth measurement has finished and the processing of the step S7 indicates "YES” (when the variable “Non” showing the lighting number of times of the LED is "4"), the CPU 54 judges that the skimmer 20 is not attached in the card reader 1 (step S8). In this manner, it is detected that no skimmer 20 is attached.
  • the sensor output of the photo reflector 50 varies in a pulse-shaped manner by the external light shown in the upper diagram in Fig. 8(c) . Therefore, as shown in the middle diagram in Fig. 8(c) , the CPU 54 detects the sensor output of the photo reflector 50 (see the arrow "A" in the drawing) immediately after that the LED is lighted (turned ON) first (the first step S3 in Fig. 7 ). In this case, it is judged that the sensor output is not less than a predetermined slice level due to the pulse-shaped external light and thus the result of "YES" is obtained by the processing of the step S6. After that, in Fig.
  • the CPU 54 detects the sensor output of the photo reflector 50 (see the arrow "B" in the drawing) immediately after that the LED is turned off (OFF) first.
  • the pulse-shaped external light is also in an off state (see the upper diagram in Fig. 8(c) ) and a level shift due to the external light does not occur in Fig. 8(c) , and thus it is judged that the sensor output is not more than the predetermined slice level and the result of "YES" is obtained by the processing of the step S14.
  • the CPU 54 detects the sensor output of the photo reflector 50 (see the arrow "B" in the drawing) immediately after that the LED is turned off (OFF) first.
  • the pulse-shaped external light is also in an off state (see the upper diagram in Fig. 8(c) ) and a level shift due to the external light does not occur in Fig. 8(c) , and thus it is judged that the sensor output is not more than the predetermined slice level and the result of "YES" is obtained by the processing
  • the measurements of the sensor output in the step S5 and the step S13 are performed such that the arrow "A” and the arrow “B” show the first measurements, the arrow “C” and the arrow “D” show the second measurements, the arrow “E” and the arrow “F” show the third measurements, and the arrow "G” and the arrow “H” show the fourth measurements.
  • a skimmer 20 is not attached to the card reader 1
  • an erroneous detection that the skimmer 20 is attached is obtained similarly to the case in Fig. 8(a) . Therefore, in accordance with an embodiment, as shown in Fig. 8(d) , a plurality of random time intervals (intervals of T 1 second, T 2 second, T 3 second, T 4 second, ... ) is used. As a result, the erroneous detection that occurs in the case shown in Fig. 8(c) is avoided.
  • a pulse-shaped light is incident on the light receiving sensor 50b from the outside (or from a gap space between the front panel and the shading filter 13).
  • the sensor outputs are respectively not less than a predetermined slice level or not more than a predetermined slice level and thus the process is returned to the step S1.
  • both measured sensor outputs are not less than the predetermined slice level (see the arrow "D” shown in Fig. 8(d) ).
  • the processing of the step S15 is performed instead of performing the processing of the step S18.
  • the processing of the step S16 is performed and thus a correct detection that a skimmer 20 is not attached can be performed.
  • the specified value is set to be “1” but the specified value may be "2" or more.
  • a skimmer 20 is attached to the card reader 1 or not.
  • the light emitting body 50a is turned on or emits light flickeringly at random (or pseudo-random) time intervals and, when the light receiving sensor 50b receives invisible light at the time interval coinciding with the flickering light emission of the light emitting body 50a, it is judged that a foreign matter is attached to the outside of the front panel. Therefore, even when a periodical pulse-shaped external light is incident on the light receiving sensor 50b, a foreign matter can be accurately detected.
  • Figs. 9(a) through 9(c) are waveform diagrams showing states where the slice level is updated.
  • Fig. 9(a) is a waveform diagram showing the lighting (turned ON) timing of the light emitting body 50a
  • Fig. 9(b) is a waveform diagram before the slice level is updated
  • Fig. 9 (c) is a waveform diagram after the slice level is updated.
  • Fig. 10 is a flow chart showing the flow of information processing when a slice level is updated.
  • the processing of the step S10 is performed after the judgment processing of the step S6 (step S6 YES) but, in the latter case, the processing of the step S15 is performed instead of the step S18 after the judgment processing of the step S14 (step S14 NO).
  • the judgment processing of the step S15 becomes "YES” and thus it is judged that a skimmer 20 is not attached in the card reader 1 (step S16).
  • this is an erroneous detection.
  • an information processing (updating processing of the specified slice level) shown in Fig. 10 is performed before "detection start" in the flow chart shown in Fig. 7 . Specifically, first, after the LED is turned off (step S21), the output of a light receiving sensor is measured (step S22).
  • step S23 it is judged whether the level of the sensor output is a rewritable level or not. Specifically, it is judged whether the level shift due to external light is within a level, which is capable of being coped with by updating of the slice level, or not.
  • the sensor output is not in a level that is rewritable, in other words, when the intensity of the external incident light is too large, it is judged that a skimmer 20 is not attached and the detection process is ended (step S24).
  • the slice value (slice level) is updated (step S25).
  • the slice level is updated. Therefore, the slice level "P" (see Fig. 9(b) ) which is to be judged as “ON” is changed to the slice level "R” (see Fig. 9(c) ) and the slice level "Q" (see Fig. 9(b) ) which is to be judged as "OFF” is changed to the slice level "S” (see Fig. 9(c) ).
  • step S26 in Fig. 10 since the output measurement is performed (step S26 in Fig. 10 ) after the slice level has been updated in a proper value (step S25 in Fig. 10 ), an erroneous detection that it is judged due to the external light, that a skimmer 20 is not attached although the skimmer 20 is attached in the card reader 1, can be prevented.
  • Fig. 11 is an explanatory schematic view showing an outline on the failure diagnosis of a photo reflector.
  • a cover 30 (the shading filter 13 in Fig. 1 ) is disposed in the front of the light emitting body (LED) 50a and the light receiving sensor (photo sensor) 50b.
  • the cover 30 (the shading filter 13 in Fig. 1 ) is structured by using material that transmits infrared light but the cover 30 slightly reflects the infrared light. Therefore, a failure diagnosis can be performed by detecting the reflected light with the light receiving sensor 50b.
  • Fig. 12 is a flow chart showing a flow of information processing when the failure diagnosis of the photo reflector is performed.
  • Fig. 12 for example, at the time of turning on the power supply of a device or at an irregular timing, firstly the light emitting body (LED) 50a is turned on and lighted (step S31). Immediately after that, the sensor output of the light receiving sensor 50b is measured (step S32). The measured value at this time is set to be "S1". Next, the light emitting body 50a is turned off (step S33). Immediately after that, the sensor output of the light receiving sensor 50b is measured (step S34). The measured value at this time is set to be "S0".
  • LED light emitting body
  • the LED on/off control circuit 51 performs the control of the light emitting body in the step S31 and the step S33 and the CPU 54 performs the output measurement in the step S32 and the step S34.
  • step S37 it is judged by the CPU 54 whether the measured value (S1-S0) is not less than a specified value or not.
  • the subtraction processing of (S1 - S0) is performed to cancel the adverse effect (level shift) of external light.
  • the sensor output from the light receiving sensor 50b is measured in a normal manner depending on the on-and-off of the light emitting body 50a and thus it is judged that the sensor is normal and the self diagnosis is ended (step S37).
  • step S36 when it is judged that the measured value does not reach the specified value, in other words, in the case that the sensor output from the light receiving sensor 50b is hardly changed even when the light emitting body 50a is turned on or off, it is judged that the sensor failure occurs and an alarm is transmitted to a host device (step S36).
  • the light emitting body 50a is turned on and lighted and, when the light receiving output (sensor output) on the light receiving sensor 50b is less than a specified value (step S35 NO), it is judged that abnormality occurs in the light receiving sensor 50b. Therefore, the card reader 1 can be provided with a self-diagnosis function for failure of the light receiving sensor 50b.
  • the photo reflector 50 is disposed in the inner side of the device with respect to the shading filter 13, which is disposed at least one part of the front panel 10, as a sensor for detecting a skimmer 20. Therefore, it is difficult that the photo reflector 50 is visually confirmed from the outside and thus a function for preventing an illegal reading (security performance) can be improved. Further, since the photo reflector 50 is disposed so as to match with the position of the magnetic head 21 provided in the skimmer 20 (see Fig. 3 ), the detection accuracy for the skimmer 20 can be improved.
  • the infrared light is emitted from the photo reflector 50, an illegal person cannot recognize the sensor light by naked eyes and thus the sensor can be prevented from being noticed by the illegal person. Further, in the case that the entire lower part of the opening 10a is formed with the shading filter 13, the sensor can be further surely prevented from being noticed by the illegal person.
  • adverse effects due to external light pulse-shaped external light or roughly equal and continuous level of external light
  • a self-diagnosis function for failure can be obtained.
  • the light emitting body 50a is disposed in the inside of the device (the inner side with respect to the shading filter 13).
  • the light emitting body 50a may be disposed, for example, on the outside of the device.
  • the shading filter 13 is structured so as to transmit invisible light
  • the photo reflector 50 is structured so as to be comprised of the light receiving sensor 50b which receives invisible light
  • the light emitting body 50a which emits invisible light may be disposed on the outside of the device. According to the structure described above, the light emitting body 50a can be easily exchanged while the illegal reading preventing function is improved similarly to the embodiment described above.
  • the detection of a foreign matter is performed in a card waiting state where a magnetic card will be inserted.
  • the detection of a foreign matter may be performed whenever the insertion of a magnetic card is detected. In this case, the detection of a foreign matter is performed frequently and thus the security performance can be improved.
  • a warning is notified to the host device.
  • a warning that the information of a magnetic card is illegally read may be notified to a user by using a display (not shown) before the magnetic card is ejected, or a processing in the magnetic card may be suspended.
  • the shutter 18 may be kept to be closed. According to the structure described above, since a magnetic card is not completely inserted into the card reader 1, recorded information on the magnetic card can be prevented from being completely read.
  • Fig. 13 is a view showing a state where the photo reflector 50 is mounted on a DIP type of a card reader 1A.
  • the detection region of the photo reflector 50 is set to be a region where the photo reflector 50 faces the passage of the magnetic stripe of a magnetic card.
  • the position of the photo reflector 50 is disposed in front of a pre-head (see Fig. 13 ).
  • the photo reflector 50 may be mounted, for example, on a swipe type of a card reader as well as a DIP type of a card reader shown in Fig. 13.
  • Fig. 14 is a view showing a state where the photo reflector 50 is mounted on a swipe type of a card reader.
  • the photo reflector 50 is disposed on an insertion side in a card swipe direction and on the side on which a magnetic head is mounted (see Fig. 14 ).
  • a medium processing device in accordance with the present invention is effectively applicable to an application for improving an illegal reading preventing function and for reducing an erroneous detection due to external light to enhance reliability.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Claims (9)

  1. Dispositif de traitement de support (1) comprenant
    un panneau avant (10) qui est forme avec une ouverture dans laquelle un support d'enregistrement magnétique est inséré ou de laquelle il est éjecté et qui sépare un extérieur du dispositif (1) d'un intérieur du dispositif (1) ;
    une tête magnétique qui est placée dans l'intérieur du dispositif (1) pour écrire ou lire des informations dans ou depuis le support d'enregistrement magnétique ;
    un mécanisme de détection de matière étrangère pour utiliser une lumière invisible pour détecter une matière étrangère qui est fixée sur l'extérieur du dispositif ;
    une pré-tête (17) qui est placée sur un côté intérieur du dispositif (1) par rapport au panneau avant (10) pour vérifier si des données magnétiques sont présentes dans le support d'enregistrement magnétique ;
    un filtre de masquage (13) qui est placé dans au moins une partie du panneau avant (10) pour masquer la lumière visible et transmettre la lumière invisible utilisée par le mécanisme de détection de matière étrangère :
    dans lequel le mécanisme de détection de matière étrangère est placé entre le filtre de masquage (13) et la pré-tête (17),
    dans lequel le mécanisme de détection de matière étrangère comprend un corps d'émission de lumière (50a) qui émet de la lumière invisible et un capteur de déception de lumière (50b) qui reçoit la lumière invisible, et le filtre de masquage (13) rend difficile que le mécanisme de détection de matière étrangère soit visuellement confirmé depuis l'extérieur.
  2. Dispositif de traitement de support selon la revendication 1, dans lequel la lumière invisible est une lumière infrarouge.
  3. Dispositif de traitement de support selon la revendication 1, dans lequel le mécanisme de détection de matière étrangère comprend une section de commande d'émission de lumière qui commande le corps d'émission de lumière (50a) et une section de comparaison qui compare une lumière émise depuis le corps d'émission de lumière (50a) avec une lumière reçue dans le capteur de réception de lumière,
  4. Dispositif de traitement de support selon la revendication 1, dans lequel le corps d'émission de lumière (50a) dans le mécanisme de détection de matière étrangère est émis de manière clignotante à intervalles de temps aléatoires ou pseudo-aléatoires et, quand le capteur de réception de lumière (50b) reçoit la lumière invisible à intervalles de temps qui coïncident avec des intervalles de temps de lumière émise depuis le corps d'émission de lumière, il est jugé qu'une matière étrangère est fixée sur l'extérieur du panneau avant.
  5. Dispositif de traitement de support selon la revendication 1, dans lequel la lumière invisible est émise depuis le corps d'émission de lumière (50a) dans le mécanisme de détection de matière étrangère au moment d'allumer une source d'alimentation du dispositif (1) et, quand une sortie de lumière reçue dans le capteur de réception de lumière (50b) n'est pas supérieure à une valeur spécifiée, il est jugée qu'une normalité a lieu dans le mécanisme de détection de matière étrangère.
  6. Dispositif de traitement de support selon la revendication 1, dans lequel le corps d'émission de lumière pour émettre une lumière invisible est placé dans l'extérieur du dispositif (1).
  7. Dispositif de traitement de support selon la revendication 1, dans lequel le mécanisme de détection de matière étrangère réalise une détection pour une matière étrangère dans un état d'attente d'insertion du support d'enregistrement magnétique ou à un moment où l'insertion du support d'enregistrement magnétique est détectée.
  8. Dispositif de traitement de support selon la revendication 1, dans lequel le support d'enregistrement magnétique est une carte comportant une bande magnétique, et une région de détection du mécanisme de détection de matière étrangère est installée pour être une région qui fait face à un passage de la bande magnétique de la carte.
  9. Dispositif de traitement de support selon la revendication 1, dans lequel un avertissement est notifié à un utilisateur ou à un dispositif hôte, ou un traitement du support d'enregistrement magnétique est suspendu, quand le mécanisme de détection de matière étrangère détecte la matière extérieure.
EP06015758.3A 2006-03-29 2006-07-28 Dispositif de traitement du support Not-in-force EP1847971B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006091431A JP4992092B2 (ja) 2006-03-29 2006-03-29 媒体処理装置

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EP1847971A1 EP1847971A1 (fr) 2007-10-24
EP1847971B1 true EP1847971B1 (fr) 2018-05-09

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US8251282B2 (en) * 2007-12-20 2012-08-28 Ncr Corporation Card reader device with sensor for sensing card trapping device
JP5210900B2 (ja) * 2009-01-23 2013-06-12 日立オムロンターミナルソリューションズ株式会社 取引処理装置
JP5325645B2 (ja) * 2009-04-20 2013-10-23 日立オムロンターミナルソリューションズ株式会社 自動取引装置、異物検知方法、異物検知システム
IT1396589B1 (it) * 2009-11-03 2012-12-14 M I B S P A Dispositivo di sicurezza per bancomat, atm o simili
JP5536525B2 (ja) * 2010-04-26 2014-07-02 日立オムロンターミナルソリューションズ株式会社 記録媒体受付装置
TWI486911B (zh) * 2012-12-06 2015-06-01 Int Currency Tech Anti - light damage price file channel structure
JP6167232B2 (ja) * 2014-05-26 2017-07-19 日立オムロンターミナルソリューションズ株式会社 カード処理装置
JP6472649B2 (ja) * 2014-12-08 2019-02-20 日本電産サンキョー株式会社 カードリーダ
JP2018010600A (ja) * 2016-07-15 2018-01-18 沖電気工業株式会社 自動取引装置
JP7085814B2 (ja) * 2017-08-31 2022-06-17 日本電産サンキョー株式会社 カードリーダ

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JP3410920B2 (ja) * 1997-03-31 2003-05-26 東芝テック株式会社 釣り銭自動払出装置
JP3806271B2 (ja) * 1999-07-09 2006-08-09 日本電産サンキョー株式会社 磁気カード取引装置
JP3850595B2 (ja) * 1999-08-31 2006-11-29 日本電産サンキョー株式会社 磁気カード取引装置
JP3668124B2 (ja) * 2000-11-13 2005-07-06 シャープ株式会社 光検出装置
JP3884348B2 (ja) * 2002-08-02 2007-02-21 日立オムロンターミナルソリューションズ株式会社 カードリーダ
CN101410879B (zh) * 2003-03-10 2011-04-06 迪布尔特有限公司 具有改进的卡保持能力的现金分发自动银行机及方法
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CN101046898B (zh) 2012-07-04
CN101046898A (zh) 2007-10-03
EP1847971A1 (fr) 2007-10-24
JP4992092B2 (ja) 2012-08-08
JP2007265189A (ja) 2007-10-11

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