WO2018163505A1

WO2018163505A1 - Card processing device, automated transaction device, and card insertion aperture unit

Info

Publication number: WO2018163505A1
Application number: PCT/JP2017/039955
Authority: WO
Inventors: 明博忠政; 弘之鈴木; 幸男青山
Original assignee: 日立オムロンターミナルソリューションズ株式会社
Priority date: 2017-03-10
Filing date: 2017-11-06
Publication date: 2018-09-13
Also published as: JP6689776B2; JP2018151762A

Abstract

The purpose of the present invention is to make it possible to preserve magnetic information read-out performance of a card processing device while alleviating illicit reading-out of magnetic information from a magnetic card. Provided is a card processing device, comprising: a card conveyance path whereupon a magnetic card is conveyed from being inserted into a card insertion aperture to being ejected from the card insertion aperture; first and second magnetic field emission units which respectively emit jamming magnetic fields in proximity to the card insertion aperture; and a control unit which controls the operation of the first and second magnetic field emission units. While the first magnetic field emission unit and the second magnetic field emission unit are emitting the jamming magnetic fields, if a prescribed operation is to be carrying out with regard to the magnetic card upon the card conveyance path, the control unit causes the first magnetic field emission unit to sustain the emission of the jamming magnetic field and causes the second magnetic field emission unit to suspend the jamming magnetic field.

Description

Card processing device, automatic transaction device, and card slot unit

The present invention relates to a card processing apparatus that takes in and processes a magnetic card.

Transaction processing devices such as ATMs (automated teller machines) are equipped with card processing devices that process information on magnetic cards. The card processing device takes the magnetic card inserted from the card insertion / ejection slot into the main body, and reads the magnetic information recorded on the magnetic stripe of the magnetic card with the magnetic head. Then, after the transaction is completed, the magnetic card is discharged from the main body to the card insertion / discharge port.

There is a crime called skimming in which a fraudulent device equipped with a fake card insertion / ejection slot equipped with a magnetic head is placed over an ATM's regular card insertion / ejection slot to illegally obtain the magnetic information of the magnetic card. For security reasons, the skimming method is only a brief description.

The fraudulent device has an opening connected to the card insertion slot of the card processing device. In the card processing device to which the unauthorized device is attached, the user inserts the card into the opening of the unauthorized device. Therefore, the magnetic card is taken into the main body from the card insertion slot through the unauthorized device. The unauthorized device illegally reads the magnetic data recorded on the magnetic card at this time. In addition, since the magnetic card passes through the fraudulent device even when the magnetic card taken into the card processing device is returned to the user, the magnetic data recorded on the magnetic card is fraudulently. Can be read.

As a countermeasure against skimming, for example, there is a technology that prevents a magnetic field of a fraudulent device from reading magnetic information on a magnetic card by generating a magnetic field for interference in the vicinity of a regular card insertion / extraction port by a magnetic field generator. (For example,

Patent Documents

1, 2, and 3).

The magnetic field generator described in

Patent Documents

1, 2, and 3 is composed of a coil and a loop antenna, and is installed in the main body front portion of the card processing apparatus or in the card insertion slot unit installed in the front portion. A control unit that controls driving of the magnetic field generation unit is installed in the main body.

The card processing device described in Patent Document 3 includes a plurality of magnetic field generation units, making it more difficult for the magnetic information of the magnetic card to be read by the magnetic head of the unauthorized device.

JP 2001-67524 A JP 2005-266999 A JP 2007-164533 A

However, the skimming prevention measures described in

Patent Documents

1 and 2 are not sufficient as countermeasures against theft of magnetic data by unauthorized devices. More specifically, since the magnetic field for interference is a single one, the magnetic field for interference can be canceled by using a magnetic head generally called a differential head as the magnetic head of an unauthorized device. There was a risk of theft of magnetic data.

The skimming prevention measure described in Patent Document 3 is a measure against an unauthorized device having a differential magnetic head, and generates a plurality of magnetic fields for obstructing the reading of magnetic data by the unauthorized device. However, if multiple magnetic fields are generated to interfere with the reading of magnetic data by unauthorized devices, the magnetic stripe detection sensor that detects the card insertion of the card reader itself will also be affected, causing the card insertion to be detected incorrectly or the card to be inserted. There were cases where it was impossible.

It is conceivable that the interfering magnetic field is stopped when the magnetic stripe detection sensor is operated in order for the card reader itself to correctly detect the card insertion by the magnetic stripe detection sensor. However, if the disturbing magnetic field is stopped during the operation of the magnetic stripe detection sensor, skimming becomes possible at the moment of card insertion.

Also, in order to reduce the influence on the card reader itself due to the disturbing magnetic field, weakening the disturbing magnetic field reduces the effect of skimming interference, and not only a differential head but also a magnetic shield or noise filter is provided. There may be cases where the effect cannot be obtained against a fraudulent device.

Similarly, even in a card processing device in which the magnetic reading head is in the vicinity of the tip of the card insertion slot, magnetism cannot be read due to the influence of the disturbing magnetic field, or the reading performance is deteriorated.

An object of the present invention is to provide a technology that makes it possible to maintain the reading performance of magnetic information of a card processing device while suppressing illegal reading of magnetic information of a magnetic card.

A card processing apparatus according to an aspect of the present invention generates a disturbing magnetic field in the vicinity of a card transport path through which a magnetic card is transported while being inserted into a card insertion slot and ejected from the card insertion slot, and in the vicinity of the card insertion slot. First and second magnetic field generation units to be controlled, and a control unit that controls operations of the first and second magnetic field generation units. The control unit includes the first magnetic field generation unit and the first magnetic field generation unit. When a predetermined operation is performed on the magnetic card on the card transport path in a state where the disturbing magnetic field is generated in the second magnetic field generating unit, the disturbing magnetic field is generated in the first magnetic field generating unit. Continue and stop the disturbing magnetic field in the second magnetic field generator.

By effectively generating a disturbing magnetic field from the first magnetic field generating unit and a disturbing magnetic field from the second magnetic field generating unit, it is possible to effectively prevent the magnetic information of the magnetic card from being read by the fraudulent device. When a predetermined process is performed on the magnetic card, the disturbing magnetic field from the second magnetic field generator is stopped to maintain the reading performance.

It is a block diagram of the automatic transaction apparatus by Example 1. FIG. 1 is a block diagram of a card processing device according to Embodiment 1. FIG. It is the schematic of the internal structure of the card processing apparatus by Example 1. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 1. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 1. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 1. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 1. FIG. It is a block diagram of the card processing apparatus by Example 2. It is the schematic of the internal structure of the card processing apparatus by Example 2. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 2. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 2. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 2. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 2. FIG. It is a figure which shows a series of operation | movement of the card processing apparatus by Example 2. FIG.

Embodiments of the present invention will be described with reference to the drawings.

Example 1 illustrates a card processing apparatus that automatically conveys a magnetic card. The card processing device is used by being incorporated in an automatic transaction device. The automatic transaction apparatus is, for example, ATM.

FIG. 1 is a block diagram of an automatic transaction apparatus according to the first embodiment. Referring to FIG. 1, an automatic transaction apparatus 100 includes a card processing apparatus 1 and a transaction processing apparatus 101. The card processing apparatus 1 according to the present embodiment automatically conveys a magnetic card, reads magnetic information recorded on the magnetic card, and notifies the transaction processing apparatus 101 of the magnetic information. Transaction processing apparatus 101 executes processing using magnetic information.

FIG. 2 is a block diagram of the card processing apparatus according to the first embodiment. Referring to FIG. 2, the card processing apparatus 1 includes a card insertion slot unit 20, a control unit 32, a magnetic information reading unit 33, a card transport path 5, a card position sensor 34, a memory 35, a host interface 36, and a card transport mechanism 37. have.

The control unit 32 is a processing unit that controls the overall operation of the card processing apparatus 1, and includes a card transport control unit 39. The card conveyance control unit 39 controls automatic conveyance of the magnetic card.

The card transport path 5 has an opening (not shown) through which a magnetic card is inserted and ejected, and is a path through which the magnetic card is transported.

The card transport mechanism 37 is a mechanism for transporting the magnetic card inserted from the opening in the card transport path 5.

The magnetic information reading unit 33 is arranged in the card transport path 5 and reads magnetic information recorded on the magnetic card.

The card position sensor 34 detects the position of the magnetic card conveyed along the card conveyance path 5.

The memory 35 is a storage unit in which the control unit 32 stores various types of information as necessary.

The host interface 36 is an interface that is connected to an overall apparatus (not shown) such as an ATM in which the card processing apparatus 1 is provided, and is used for transmitting and receiving information for the card processing apparatus 1 to cooperate with the entire apparatus. For example, magnetic information read from the magnetic card is notified to the entire apparatus via the host interface 36.

The card insertion slot unit 20 is a unit that constitutes the card insertion slot of the card processing apparatus 1 and its peripheral part. The card insertion slot is an opening of the card transport path 5. The card slot unit 20 includes a magnetic field control unit 22, a first magnetic field generation unit 23, a second magnetic field generation unit 24, a magnetic stripe detection sensor 21, and an insertion detection sensor 41.

The first magnetic field generating unit 23 and the second magnetic field generating unit 24 are disposed in the vicinity of the opening of the card transport path 5 to prevent an unauthorized device (not shown) from reading the magnetic data of the magnetic card. Generate a disturbing magnetic field.

The magnetic field control unit 22 controls the generation of the disturbing magnetic field by the first magnetic field generation unit 23 and the second magnetic field generation unit 24 in cooperation with the control unit 32.

The magnetic stripe detection sensor 21 is disposed in the vicinity of the opening of the card transport path 5 and detects that the magnetic card has a magnetic stripe so that a magnetic card having a magnetic stripe is inserted into the card transport path 5. Is detected. The insertion detection sensor 41 is disposed in the vicinity of the opening of the card transport path 5 and detects that a prescribed card-shaped magnetic card has been inserted into the card transport path 5 by detecting the width and thickness of the magnetic card. To detect.

FIG. 3 is a schematic diagram of the internal configuration of the card processing device according to the first embodiment. The card processing device 1 has a card insertion slot 4 and a card insertion slot unit 20 as its peripheral part.

The card transport path 5 is provided so as to pass through the card insertion slot unit 20 and the main body in the card processing apparatus 1. In the card transport path 5, the magnetic card 3 is paired in the main body of the card processing device 1 so as to sandwich the card transport path 5, and is sandwiched by rollers 61 A and 61 B arranged in the transport direction of the card transport path 5. Then, the rollers 61 A and 61 B are rotated to be conveyed through the card conveying path 5. The rollers 61A and 61B correspond to the card transport mechanism 37 in FIG. The rollers 61A and 61B are each composed of two rollers that make a pair. One of the paired rollers is a driving roller to which the rotational force of a motor (not shown) is transmitted, and the other is a driven roller that is rotated by the driving roller. The motor for rotating the drive roller is controlled by the card transport control unit 39. By controlling rotation and stop including the rotation direction and rotation speed of the motor, the magnetic card 3 can be taken in and out.

An insertion detection sensor 41 that detects the magnetic card 3 inserted into the card insertion slot 4 is provided in the vicinity of the card insertion slot 4. When detecting the magnetic card 3, the insertion detection sensor 41 notifies the control unit 32 of a sensor signal.

In FIG. 3, on the outside of the card insertion slot 4, a magnetic information reading unit (magnetic head) is provided at a position where magnetic information can be read from the magnetic card 3 inserted into the card insertion slot 4 or ejected from the card insertion slot 4. An unauthorized device 11 having 12 is attached. The magnetic information reading unit 12 is a differential head that cancels the influence of the external magnetic field by taking the difference between the output of the magnetic head that contacts the stripe of the magnetic card 3 and the output of the magnetic head that does not contact the magnetic card 3. May be.

In the card processing device 1 of this embodiment, the first magnetic field generating unit 23 and the second magnetic field generating unit 24 are connected to the card insertion slot 4 in order to prevent the magnetic information reading unit 12 of the unauthorized device 11 from reading the magnetic information. The first magnetic field generator 23 and the second magnetic field generator 24 generate disturbing magnetic fields.

The magnetic stripe detection sensor 21 is provided in the vicinity of the card insertion slot 4 and detects the magnetic stripe of the magnetic card 3 so that the magnetic card 3 inserted into the card transport path 5 has a magnetic stripe. This is detected and notified to the control unit 32. The control unit 32 can know from the sensor signal from the magnetic stripe detection sensor 21 that the magnetic card 3 having the magnetic stripe has been inserted into the card insertion slot 4.

As an example, the first magnetic field generator 23 and the second magnetic field generator 24 are coils in which a lead wire (not shown) is wound around an iron core (not shown). The magnetic field control unit 22 can flow currents independently through the coil of the first magnetic field generation unit 23 and the coil of the second magnetic field generation unit 24. The drive signal that the magnetic field control unit 22 passes through the coil of the first magnetic field generation unit 23 and the drive signal that flows through the coil of the second magnetic field generation unit 24 have different frequencies. In addition, the drive signal that the magnetic field control unit 22 sends to the coil of the first magnetic field generation unit 23 and the drive signal that flows to the coil of the second magnetic field generation unit 24 have different intensities. By making the intensity and / or frequency of the two disturbing magnetic fields different from each other, it is difficult to cancel the disturbing magnetic field even when the magnetic information reading unit 12 of the unauthorized device 11 uses a differential head. .

In the disturbing magnetic field generated by the first magnetic field generator 23, a region 231 having a magnetic field strength surrounded by a broken line and having a magnetic field strength higher than a predetermined value extends along the card transport path 5. The disturbing magnetic field generated by the second magnetic field generation unit 24 is such that a region 241 whose magnetic field intensity surrounded by a broken line is higher than a predetermined value passes through an extension line of the card transport path 5 outside the card insertion slot 4, and the card is inserted. It spreads so as not to cover the card transport path 5 inside the mouth 4.

Card position sensors

34A, 34B, 34C are arranged side by side in the transport direction of the card transport path 5. The arrangement interval of the

card position sensors

34A, 34B, 34C is shorter than the length of the magnetic card 3 in the transport direction. Each of the

card position sensors

34A, 34B, and 34C is an optical sensor including a pair of a light emitting unit and a light receiving unit, and the light emitting unit and the light receiving unit are disposed to face each other with the card transport path 5 interposed therebetween.

A sensor signal indicating that the

card position sensors

34A, 34B, 34C have detected the magnetic card 3 is notified to the control unit 32. The control unit 32 can know the position of the magnetic card 3 in the card transport path 5 from the sensor signal. For example, the control unit 32 can know from the sensor signal from the card position sensor 34A that the magnetic card 3 has reached a position between the pair of rollers 61A. Further, the control unit 32 can know from the sensor signal from the card position sensor 34B that the magnetic card 3 has reached a position where the magnetic information reading unit 33 can read the magnetic information.

A magnetic information reading unit 33 for reading magnetic information from the magnetic card 3 in the card transport path 5 is disposed in the vicinity of the card transport path 5. Further, a head facing roller 62 is disposed so as to face the magnetic information reading unit 33 so as to sandwich the card transport path 5. The magnetic information reading unit 33 has a magnetic head, reads magnetic information from the magnetic card 3 in the card transport path 5 with the magnetic head, and notifies the control unit 32 of the magnetic information.

4, FIG. 5, FIG. 6, and FIG. 7 are diagrams showing a series of operations of the card processing device according to the first embodiment. Hereinafter, the skimming preventing operation of the card processing apparatus 1 when the magnetic card 3 is taken and the magnetic information is read will be described with reference to these drawings.

First, referring to FIG. 4, the control unit 32 of the card processing apparatus 1 generates a disturbing magnetic field in the first magnetic field generation unit 23 and the second magnetic field generation unit 24 at normal times. Since the unauthorized device 11 is attached to the outside of the card insertion port 4 of the card processing device 1, when the user inserts the magnetic card 3 into the card processing device 1, the magnetic card 3 is a magnetic information reading unit of the unauthorized device 11. 12 will pass.

When the tip of the magnetic card 3 (the right end in the figure) approaches the magnetic information reading unit 12 of the unauthorized device 11, a disturbing magnetic field is generated from the first magnetic field generating unit 23 and the second magnetic field generating unit 24. Therefore, the unauthorized device 11 cannot read the magnetic information on the magnetic card 3.

When the magnetic card 3 further advances in the direction (insertion direction) inserted into the card insertion slot 4, the leading end of the magnetic card 3 is detected by the insertion detection sensor 41, as shown in FIG. Is done. The control unit 32 learns that the magnetic card 3 has been inserted into the card insertion slot 4 and causes the second magnetic field generation unit 24 to stop generating the disturbing magnetic field. Thereby, in the card processing apparatus 1, it is possible to reliably detect the magnetic stripe by the magnetic stripe detection sensor 21 and read the magnetic information of the magnetic card 3 by the magnetic information reading unit 33. Thereby, troubles such as erroneous detection of card insertion and the inability to insert a card are reduced.

When the magnetic card 3 further advances in the insertion direction, first, the magnetic card 3 passes over the magnetic stripe detection sensor 21 from the head. At that time, a magnetic stripe is detected by the magnetic stripe detection sensor 21 and notified to the control unit 32. When notified of the detection of the magnetic stripe, the control unit 32 determines that the magnetic card 3 having the magnetic stripe is inserted, and the card conveyance control unit 39 uses the rollers 61A and 61B and the head for conveying the magnetic card 3. The counter roller 62 starts to be driven.

When the magnetic card 3 further advances in the insertion direction, the top of the magnetic card 3 reaches the roller 61A on the card insertion slot 4 side. Thereby, automatic conveyance of the magnetic card 3 starts. Immediately thereafter, the magnetic card 3 is detected by the card position sensor 34A on the card insertion slot 4 side, and this is notified to the control unit 32. The control unit 32 can determine that the tip of the magnetic card 3 has reached the card position sensor 34A by detecting the magnetic card 3 from a state in which the magnetic card 3 is not detected by the card position sensor 34A. .

Further, when the magnetic card 3 advances in the insertion direction by automatic conveyance, the leading end of the magnetic card 3 is detected by the central card position sensor 34B, and this is notified to the control unit 32. The control unit 32 receives the notification and knows that the tip of the magnetic card 3 has reached the card position sensor 34B. Immediately thereafter, reading of magnetic information from the magnetic card 3 by the magnetic information reading unit 33 is started. The controller 32 automatically conveys the magnetic card 3 while reading the magnetic information with the magnetic information reader 33.

Further, when the magnetic card 3 advances in the insertion direction by automatic conveyance, the magnetic card 3 is not detected by the card position sensor 34A on the card insertion port 4 side. When the magnetic card 3 is not detected from the state in which the magnetic card 3 is detected by the card position sensor 34A on the card insertion port 4 side, the control unit 32 causes the rear end of the magnetic card 3 to be on the card insertion port 4 side. It is determined that the card position sensor 34A has been reached.

Further, when the magnetic card 3 advances in the insertion direction by automatic conveyance, the magnetic card 3 is not detected by the central card position sensor 34B as shown in FIG. When the magnetic card 3 is not detected from the state in which the magnetic card 3 is detected by the central card position sensor 34B, the control unit 32 determines that the rear end of the magnetic card 3 has reached the central card position sensor 34B. to decide. Immediately thereafter, the reading of the magnetic information of the magnetic card 3 by the magnetic information reading unit 33 is completed.

When the rear end of the magnetic card 3 passes through the magnetic information reading unit 33, the control unit 32 starts to automatically convey the magnetic card 3 in the ejection direction by the card conveyance control unit 39, as shown in FIG. At this time, the control unit 32 restarts the generation of the disturbing magnetic field by the second magnetic field generation unit 24. As a result, the magnetic information reading unit 12 of the unauthorized device 11 cannot read the magnetic information of the magnetic card 3.

Further, the magnetic card 3 advances in the discharge direction by automatic conveyance, and finally the magnetic card 3 is discharged from the card insertion slot 4. Meanwhile, when the magnetic stripe of the magnetic card 3 passes through the magnetic information reading unit 12, the first magnetic field generation unit 23 and the second magnetic field generation unit 24 generate disturbing magnetic fields. The unauthorized device 11 is prevented from reading the magnetic information.

As described above, according to this embodiment, the card processing apparatus 1 includes the card transport path 5 through which the magnetic card 3 is transported while being inserted into the card insertion slot 4 and ejected from the card insertion slot 4, and the card. First and second

magnetic field generators

23 and 24 that generate disturbing magnetic fields in the vicinity of the insertion port 4 and a control unit 32 that controls the operation of the first and second

magnetic field generators

23 and 24 are provided. is doing. When the control unit 32 performs a predetermined operation on the magnetic card 3 on the card transport path 5 in a state where the first magnetic field generation unit 23 and the second magnetic field generation unit 24 generate the disturbing magnetic field, The first magnetic field generator 23 continues to generate a disturbing magnetic field, and the second magnetic field generator 24 stops the disturbing magnetic field. By effectively generating the disturbing magnetic field from the first magnetic field generating unit 23 and the disturbing magnetic field from the second magnetic field generating unit 24, the magnetic information of the magnetic card 3 read by the unauthorized device 11 is effectively suppressed, When a predetermined process is performed on the magnetic card 3 in the own apparatus (card processing apparatus 1), the disturbing magnetic field from the second magnetic field generator 24 can be stopped and the process can be executed satisfactorily.

Note that, according to this embodiment, the predetermined operation on the magnetic card 3 is reading of magnetic information recorded on the magnetic card. It is possible to effectively suppress reading of magnetic information by the unauthorized device 11 and to maintain the reading performance by stopping the disturbing magnetic field from the second magnetic field generator 24 when the device itself reads the magnetic information.

The card processing apparatus 1 according to the present embodiment also includes an insertion detection sensor 41 that detects that the magnetic card 3 has been inserted into the card insertion slot 4 and magnetic information that reads magnetic information from the magnetic card 3 in the card transport path 5. And a reading unit 33. When the magnetic card 3 is detected by the insertion detection sensor 41, the control unit 32 stops the disturbing magnetic field in the second magnetic field generation unit 24, and the magnetic card 3 advances in the insertion direction of the card transport path 5. In the meantime, the magnetic information reading unit 33 is caused to read the magnetic information, and after the magnetic information reading unit 33 finishes reading the magnetic information, the second magnetic field generation unit 24 is caused to resume the generation of the disturbing magnetic field. Good. In the card processing apparatus 1 that reads magnetic information when traveling in the insertion direction as exemplified in the first embodiment, when the magnetic card 3 is inserted into the card insertion slot 4, the second magnetic field generator 24 Stop the disturbing magnetic field. When the unauthorized device 11 is attached to the outside of the card insertion slot 4, when the magnetic card 3 is inserted into the card insertion slot 4, a part of the magnetic card 3 passes through the magnetic information reading unit 33 of the unauthorized device 11. It is assumed that Even if the generation of the disturbing magnetic field by the second magnetic field generator 24 is stopped when the magnetic card 3 is inserted into the card insertion slot 4, the magnetic information reading section of the unauthorized device 11 attached outside the card insertion slot 4 It is possible to suppress reading of magnetic information by the unauthorized device 11 due to the disturbing magnetic field from the first magnetic field generating unit 23 and the disturbing magnetic field from the second magnetic field generating unit 24 in a state where the magnetic card 3 is on the 33. . When the magnetic information is read by itself, the disturbing magnetic field from the second magnetic field generator 24 is stopped, so that the reading performance of the magnetic information is maintained.

The card processing device 1 according to the present embodiment further includes a card transport mechanism 37 that transports the magnetic card 3 in the card transport path 5. When the magnetic card is detected by the insertion detection sensor 41, the control unit 32 causes the card transport mechanism 37 to transport the magnetic card 3 in the insertion direction in the card transport path 5. Further, the control unit 32 causes the second magnetic field generation unit 24 to stop the disturbing magnetic field, and causes the magnetic information reading unit 33 to read the magnetic information while the magnetic card 3 is transported in the insertion direction in the card transport path 5. . After reading the magnetic information by the magnetic information reading unit 33, the control unit 32 causes the second magnetic field generation unit 24 to resume the generation of the disturbing magnetic field, and causes the card transport mechanism 37 to place the magnetic card 3 in the card transport path. 5, the sheet is conveyed in the discharging direction and discharged from the card insertion slot 4. In the card processing apparatus 1 that reads the magnetic information when the magnetic card 3 is conveyed by automatic conveyance and is conveyed in the insertion direction, the second magnetic field generator 24 is inserted when the magnetic card 3 is inserted into the card insertion slot 4. Stop the disturbing magnetic field from. Therefore, in the state where the magnetic card 3 is on the magnetic information reading unit 12 of the unauthorized device 11, the magnetic information is illegally generated by the disturbing magnetic field from the first magnetic field generating unit 23 and the disturbing magnetic field from the second magnetic field generating unit 24. In addition to being able to prevent reading, when the device reads magnetic information from the magnetic card 3 conveyed in the insertion direction, the disturbing magnetic field from the second magnetic field generator 24 can be stopped to ensure reading performance.

In the present embodiment, the first magnetic field generator 23 and the second magnetic field generator 24 may alternately generate a disturbing magnetic field. The time interval for switching is preferably set to a time that is about 1 to a fraction of the tens of times required to read the magnetic information of the magnetic card 3. The switching time interval is as short as several tens of ms to several hundreds of ms. According to this configuration, the unauthorized device 11 uses the differential head by changing the strength and / or frequency of the disturbing magnetic field with time and changing the influence of the two disturbing magnetic fields alternately. In this case, it is difficult to continuously cancel the disturbing magnetic field, and the magnetic information can be effectively read.

Further, the disturbing magnetic field generated by the first magnetic field generating unit 23 and the disturbing magnetic field generated by the second magnetic field generating unit 24 may overlap each other in the vicinity of the card insertion slot 4. Since it is assumed that the unauthorized device 11 is attached to the outside in the vicinity of the card insertion slot 4, the two disturbing magnetic fields overlap on the outside in the vicinity of the card insertion slot 4. Reading of magnetic information can be effectively suppressed.

The first magnetic field generator 23 generates a disturbing magnetic field that extends in parallel with the card transport path 5 (region 231), and the second magnetic field generator 24 is located near the card insertion slot 4 in the card transport path 5. A disturbing magnetic field may be generated (region 241). By making the disturbing magnetic field from the first magnetic field generator 23 continuously generated parallel to the card transport path 5, it is possible to effectively suppress reading of the magnetic information of the magnetic card 3 by the unauthorized device 11. it can.

In the present embodiment, an example is shown in which one each of the first magnetic field generation unit 23 and the second magnetic field generation unit 24 is provided, but the present invention is not limited to this. As another example, a plurality of second magnetic field generators 24 may be provided. The effect of obstructing the reading of magnetic information by the unauthorized device 11 can be further enhanced.

Example 2 illustrates a card processing device for manually inserting and removing a magnetic card.

FIG. 8 is a block diagram of the card processing apparatus according to the second embodiment. Referring to FIG. 8, the card processing apparatus 1 includes a card insertion slot unit 20, a control unit 32, a card transport path 5, a card position sensor 34, a memory 35, and a host interface 36.

The control unit 32 is a processing unit that controls the overall operation of the card processing apparatus 1.

The card transport path 5 has an opening (not shown) through which a magnetic card is inserted and removed, and is a path through which the magnetic card is transported. Since the magnetic card is manually inserted and removed in the second embodiment, there is a wall against which the inserted magnetic card abuts at the end opposite to the opening of the card transport path 5 so that the progress of the magnetic card stops at the wall. It has become.

The host interface 36 is an interface that is connected to an entire apparatus (not shown) in which the card processing apparatus 1 is provided, and that transmits and receives information for the card processing apparatus 1 to cooperate with the entire apparatus. For example, magnetic information read from the magnetic card is notified to the entire apparatus via the host interface 36.

The card insertion slot unit 20 is a unit that constitutes the card insertion slot of the card processing apparatus 1 and its peripheral part. The card insertion slot is an opening of the card transport path 5. The card slot unit 20 includes a magnetic field control unit 22, a first magnetic field generation unit 23, a second magnetic field generation unit 24, a magnetic stripe detection sensor 21, and a magnetic information reading unit 33. In the second embodiment, the magnetic information reading unit 33 is in the card insertion slot unit 20.

The magnetic stripe detection sensor 21 is disposed in the vicinity of the opening of the card transport path 5 and detects that the magnetic card has a magnetic stripe so that a magnetic card having a magnetic stripe is inserted into the card transport path 5. Is detected.

FIG. 9 is a schematic diagram of the internal configuration of the card processing device according to the second embodiment. The card processing device 1 has a card insertion slot 4 and a card insertion slot unit 20 as its peripheral part.

The card transport path 5 is provided so as to pass through the card insertion slot unit 20 and the main body in the card processing apparatus 1. The magnetic card 3 is manually transported in the card transport path 5.

In FIG. 9, on the outside of the card insertion slot 4, a magnetic information reading unit (magnetic head) is positioned at a position where magnetic information can be read from the magnetic card 3 inserted into the card insertion slot 4 or discharged from the card insertion slot 4. An unauthorized device 11 having 12 is attached. The magnetic information reading unit 12 is a differential head that cancels the influence of the external magnetic field by taking the difference between the output of the magnetic head that contacts the stripe of the magnetic card 3 and the output of the magnetic head that does not contact the magnetic card 3. May be.

As an example, the first magnetic field generator 23 and the second magnetic field generator 24 are coils in which a lead wire (not shown) is wound around an iron core (not shown). The magnetic field control unit 22 can flow currents independently through the coil of the first magnetic field generation unit 23 and the coil of the second magnetic field generation unit 24.

Card position sensors

34A and 34B are arranged side by side in the transport direction of the card transport path 5. The arrangement interval of the

card position sensors

34A and 34B is substantially the same as the length of the magnetic card 3 in the transport direction. The card position sensors 34 A and 34 B are optical sensors composed of a pair of a light emitting unit and a light receiving unit, and the light emitting unit and the light receiving unit are arranged to face each other with the card transport path 5 interposed therebetween.

A sensor signal indicating that the

card position sensors

34A and 34B have detected the magnetic card 3 is notified to the control unit 32. The control unit 32 can know the position of the magnetic card 3 in the card transport path 5 from the sensor signal. For example, the control unit 32 can know from the sensor signal from the card position sensor 34A that the magnetic card 3 has reached a position where the magnetic information reading unit 33 can read magnetic information. Further, the control unit 32 can know that the magnetic card 3 has reached the end point of the card transport path 5 from the sensor signal from the card position sensor 34B. In the present embodiment, the end point of the card transport path 5 is blocked by a wall that restricts the progression, and the magnetic card 3 inserted manually from the card insertion slot 4 hits the end wall of the card transport path 5, and beyond that, It cannot be made to progress.

A magnetic information reading unit 33 for reading magnetic information from the magnetic card 3 in the card transport path 5 is disposed in the vicinity of the card insertion slot 4 in the vicinity of the card transport path 5. The magnetic information reading unit 33 has a magnetic head, reads magnetic information from the magnetic card 3 in the card transport path 5 with the magnetic head, and notifies the control unit 32 of the magnetic information. In the card processing apparatus 1 of this embodiment, the magnetic information reading unit 33 reads magnetic information from the magnetic card 3 when the magnetic card 3 is manually pulled out.

10, FIG. 11, FIG. 12, FIG. 13 and FIG. 14 are diagrams showing a series of operations of the card processing device according to the second embodiment. Hereinafter, the skimming preventing operation of the card processing apparatus 1 when reading the magnetic information of the magnetic card 3 inserted and pulled out will be described with reference to these drawings.

First, referring to FIG. 10, the control unit 32 of the card processing apparatus 1 normally generates a disturbing magnetic field in the first magnetic field generation unit 23 and the second magnetic field generation unit 24. Since the unauthorized device 11 is attached to the outside of the card insertion port 4 of the card processing device 1, when the user inserts the magnetic card 3 into the card processing device 1, the magnetic card 3 is a magnetic information reading unit of the unauthorized device 11. 12 will pass.

When the leading end of the magnetic card 3 reaches the magnetic information reading unit 12 of the unauthorized device 11, since the disturbing magnetic field is generated from the first magnetic field generating unit 23 and the second magnetic field generating unit 24, the unauthorized device 11 The magnetic information on the magnetic card 3 cannot be read. Further, the magnetic card 3 advances in the insertion direction, and from the first magnetic field generator 23 and the second magnetic field generator 24 until the tip of the magnetic card 3 reaches the end point of the card transport path 5 as shown in FIG. Since the disturbing magnetic field is generated, the magnetic information reading unit 12 of the unauthorized device 11 cannot read the magnetic information of the magnetic card 3.

Since the card position sensor 34B is disposed in the vicinity of the end point of the card transport path 5, the control unit 32 detects that the tip of the magnetic card 3 has reached the end point of the card transport path 5 from the sensor signal from the card position sensor 34B. Can know by. In addition, since the distance between the card position sensor 34A and the card position sensor 34B is substantially equal to the length of the magnetic card 3, the card position sensor 34A is magnetic at substantially the same time as the card position sensor 34B detects the tip of the magnetic card 3. The rear end of the card 3 (left end in the figure) is detected. It can be known that the tip of the magnetic card 3 has reached the card position sensor 34 from the state where the card position sensor 34 does not detect the magnetic card 3 to the state where the magnetic card 3 is detected. Further, it can be known that the rear end of the magnetic card 3 has reached the card position sensor 34 because the card position sensor 34 has changed from detecting the magnetic card 3 to not detecting the magnetic card 3. .

When the tip of the magnetic card 3 hits the end wall of the card transport path 5, the user can remove the magnetic card 3 from the card insertion slot 4 in the direction opposite to the insertion direction as shown in FIG. Direction). When the magnetic card 3 is pulled out, when the rear end of the magnetic card 3 reaches the card position sensor 34A disposed in the vicinity of the magnetic information reading unit 33, the control unit 32 uses the sensor signal from the card position sensor 34A. As a result, the generation of the disturbing magnetic field by the second magnetic field generator 24 is stopped as shown in FIG. Thereby, in the card processing apparatus 1, the magnetic information reading unit 33 can reliably read the magnetic information of the magnetic card 3. This reduces troubles such as erroneous recognition of magnetic information.

Further, while the magnetic card 3 is pulled out in the removal direction, the magnetic information reading unit 33 reads the magnetic information from the magnetic stripe of the magnetic card 3. At this time, since the disturbing magnetic field from the second magnetic field generator 24 is stopped, the magnetic information of the magnetic card 3 can be read by the magnetic information reader 12 of the fraudulent device 11 and is actually halfway. It is also assumed that magnetic information is read.

When the magnetic card 3 further advances in the removal direction and the leading end of the magnetic card 3 returns to the position of the card position sensor 34A, the card position sensor 34A detects the magnetic card 3 as shown in FIG. As shown in FIG. 14, the magnetic card 3 is not detected. At this time, the control unit 32 determines that the reading of the magnetic information of the magnetic card 3 is completed, and restarts the generation of the disturbing magnetic field by the second magnetic field generation unit 24. Thereafter, the magnetic information reading unit 12 of the unauthorized device 11 cannot read magnetic information from the magnetic card 3.

Further, the magnetic card 3 advances in the pulling direction, and the unauthorized device 11 tries to read the magnetic information of the magnetic card 3 by the magnetic information reading unit 12, but the disturbing magnetic field and the second magnetic field are generated from the first magnetic field generating unit 23. The magnetic information cannot be read due to being disturbed by the disturbing magnetic field from the unit 24. Thereafter, the magnetic card 3 is pulled out from the card insertion slot 4 to the tip.

As described above, according to the present embodiment, the control unit 32 causes the second magnetic field generation unit 24 to stop the disturbing magnetic field after the magnetic card 3 has finished moving in the insertion direction, and the magnetic card 3 When the magnetic information is read by the magnetic information reading unit 33 and the magnetic card 3 passes through the magnetic information reading unit 33 while proceeding in the removal direction of the transport path 5, the second magnetic field generation unit 24 causes the disturbing magnetic field to be generated. Resume occurrence. In the card processing apparatus 1 of the type that reads magnetic information from the magnetic card 3 while proceeding in the removal direction, when the magnetic information reading unit 33 reads the magnetic information when the magnetic card 3 is removed, the second magnetic field generation unit 24 Stop the disturbing magnetic field. Therefore, the magnetic information of the magnetic card 3 by the unauthorized device 11 is prevented from being read by the disturbing magnetic field from the first magnetic field generating unit 23 and the disturbing magnetic field from the second magnetic field generating unit 24, and the own device is magnetic. When reading information, the disturbing magnetic field from the second magnetic field generator 24 can be stopped.

In this embodiment, the magnetic card 3 is manually inserted into the card insertion slot 4 and manually removed from the card insertion slot 4. The card processing apparatus 1 for manually inserting and removing the magnetic card 3 normally reads magnetic information when the magnetic card 3 is removed when the conveyance of the magnetic card 3 is stable. In this embodiment, in this case, it is possible to effectively prevent unauthorized reading of the magnetic information by the unauthorized device 11 while ensuring the reading performance of the magnetic information by the own device at the time of removal.

In the present embodiment, the card position sensor 34 detects that the leading end (right end in the figure) or the trailing end (left end in the figure) of the magnetic card 3 has reached the magnetic information reading unit 33. When the inserted magnetic card 3 is pulled out in the removal direction, when the rear end of the magnetic card 3 reaches the magnetic information reading unit 33, the control unit 32 causes the second magnetic field generation unit 24 to stop the disturbing magnetic field and When the card 3 advances in the card removal path 5 in the removal direction, the magnetic information reading unit 33 is caused to read the magnetic information. Further, when the leading end of the magnetic card 3 reaches the magnetic information reading unit 33, the control unit 32 causes the second magnetic field generation unit 24 to resume generation of the disturbing magnetic field. In the card processing device 1 that reads magnetic information while the magnetic card 3 is moving in the removal direction, a disturbing magnetic field is generated by the second magnetic field generator 24 for as long as possible except when the magnetic information is read by the device itself. The reading of the magnetic information of the magnetic card 3 by the unauthorized device 11 can be suppressed.

The embodiments of the present invention described above are examples for explaining the present invention, and are not intended to limit the scope of the present invention only to those embodiments. A person skilled in the art, for example, interchanges the operations of the first magnetic field generation unit and the second magnetic field generation unit or provides a plurality of second magnetic field generation units without departing from the gist of the present invention. The present invention can be implemented in various ways.

DESCRIPTION OF SYMBOLS 1 ... Card processing apparatus, 100 ... Automatic transaction apparatus, 101 ... Transaction processing apparatus, 11 ... Fraud apparatus, 12 ... Magnetic information reading part, 20 ... Card insertion slot unit, 21 ... Magnetic stripe detection sensor, 22 ... Magnetic field control part, DESCRIPTION OF SYMBOLS 23 ... 1st magnetic field generation part, 231 ... area | region, 24 ... 2nd magnetic field generation part, 241 ... area | region, 3 ... Magnetic card, 32 ... Control part, 33 ... Magnetic information reading part, 34 ... Card position sensor, 35 ... Memory, 36 ... Host interface, 39 ... Card transport controller, 4 ... Card insertion slot, 41 ... Insertion detection sensor, 5 ... Card transport path, 61 ... Roller, 62 ... Head facing roller

Claims

A card conveyance path through which a magnetic card is conveyed while being inserted into the card insertion slot and ejected from the card insertion slot;
First and second magnetic field generators for generating disturbing magnetic fields in the vicinity of the card insertion slot,
A control unit that controls the operation of the first and second magnetic field generation units,
When the control unit performs a predetermined operation on the magnetic card on the card transport path in a state where the disturbing magnetic field is generated in the first magnetic field generation unit and the second magnetic field generation unit, The card processing apparatus, wherein the first magnetic field generation unit continuously generates the disturbing magnetic field and the second magnetic field generation unit stops the disturbing magnetic field.
The predetermined operation with respect to the magnetic card is reading of magnetic information recorded on the magnetic card.
The card processing apparatus according to claim 1.
An insertion detection sensor for detecting that the magnetic card has been inserted into the card insertion slot;
A magnetic information reader for reading magnetic information from the magnetic card in the card transport path,
The controller is
When the magnetic card is detected by the insertion detection sensor, the second magnetic field generation unit stops the disturbing magnetic field,
While the magnetic card travels in the insertion direction of the card conveyance path, the magnetic information reading unit reads the magnetic information,
After the reading of the magnetic information by the magnetic information reading unit, the second magnetic field generation unit restarts the generation of the disturbing magnetic field,
The card processing apparatus according to claim 2.
A card transport mechanism for transporting the magnetic card in the card transport path;
When the magnetic card is detected by the insertion detection sensor,
The controller is
The card transport mechanism transports the magnetic card in the insertion direction in the card transport path,
Causing the second magnetic field generator to stop the disturbing magnetic field;
While the magnetic card is transported in the insertion direction in the card transport path, the magnetic information reading unit reads the magnetic information,
After finishing the reading of the magnetic information by the magnetic information reading unit, the second magnetic field generation unit restarts the generation of the disturbing magnetic field,
In the card transport mechanism, the magnetic card is transported in the ejection direction in the card transport path, and is ejected from the card insertion slot.
The card processing apparatus according to claim 3.
A magnetic information reader for reading magnetic information from the magnetic card in the card transport path;
A card position sensor for detecting the position of the magnetic card;
The controller is
After the magnetic card has finished moving in the insertion direction, the second magnetic field generation unit stops the disturbing magnetic field,
While the magnetic card travels in the direction of removing the card conveyance path, the magnetic information reading unit is caused to read the magnetic information,
When the magnetic card passes through the magnetic information reading unit, the second magnetic field generation unit restarts the generation of the disturbing magnetic field.
The card processing apparatus according to claim 2.
The magnetic card is manually inserted into the card insertion slot, and is manually removed from the card insertion slot.
The card processing apparatus according to claim 5.
The card position sensor detects that the leading or trailing end of the magnetic card has reached the magnetic information reading unit;
The controller is
When the inserted magnetic card is pulled out in the removal direction, when the rear end of the magnetic card reaches the magnetic information reading unit, the second magnetic field generation unit stops the disturbing magnetic field,
When the magnetic card travels in the direction of removing the card conveyance path, the magnetic information reading unit is caused to read the magnetic information,
When the leading end of the magnetic card reaches the magnetic information reading unit, the second magnetic field generation unit restarts the generation of the disturbing magnetic field,
The card processing apparatus according to claim 5.
The first magnetic field generator and the second magnetic field generator generate disturbing magnetic fields having different frequencies or strengths from each other;
The card processing apparatus according to claim 1.
The disturbing magnetic field generated by the first and second magnetic field generators changes in frequency or intensity over time.
The card insertion / discharge port unit according to claim 8.
2. The card processing apparatus according to claim 1, wherein the disturbing magnetic field generated by the first magnetic field generating unit and the disturbing magnetic field generated by the second magnetic field generating unit overlap outside in the vicinity of the card insertion slot.
The first magnetic field generator generates the disturbing magnetic field that extends in parallel with the card transport path,
The second magnetic field generator generates the disturbing magnetic field outside the card insertion path in the vicinity of the card insertion slot.
The card processing apparatus according to claim 10.
A card processing device according to claim 1;
A transaction processing device connected to the card processing device and executing processing using the magnetic information read by the card processing device;
An automatic transaction apparatus.
A card conveyance path through which a magnetic card is conveyed while being inserted into the card insertion slot and ejected from the card insertion slot;
A first and a second magnetic field generator for generating a disturbing magnetic field in the vicinity of the card insertion slot,
The disturbing magnetic field is generated in the first magnetic field generating unit and the second magnetic field generating unit, and the disturbing magnetic field is generated in the first magnetic field generating unit while the magnetic information of the magnetic card is normally read. And the second magnetic field generating unit temporarily stops the disturbing magnetic field in the card insertion slot unit.