CN104217187B - Magnetic recording media reading device - Google Patents
Magnetic recording media reading device Download PDFInfo
- Publication number
- CN104217187B CN104217187B CN201410234002.7A CN201410234002A CN104217187B CN 104217187 B CN104217187 B CN 104217187B CN 201410234002 A CN201410234002 A CN 201410234002A CN 104217187 B CN104217187 B CN 104217187B
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- China
- Prior art keywords
- magnetic field
- magnetic
- generation section
- field generation
- interference
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Classifications
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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
- G07F19/2055—Anti-skimming aspects at ATMs
Abstract
The present invention provides a kind of magnetic recording media reading device.Card reader (100) possesses the magnetic field generation section (3) for producing interference magnetic field.Magnetic field generation section (3) is made up of interference magnetic field producer (31) arranged opposite and interference magnetic field producer (32).Interference magnetic field from interference magnetic field producer (31) generation is by disturbing magnetic field producer (32), and the interference magnetic field from interference magnetic field producer (32) generation is by disturbing magnetic field producer (31).Region between interference magnetic field producer (31) and interference magnetic field producer (32), the direction in the interference magnetic field produced from respective interference magnetic field producer is identical.
Description
Technical field
The present invention relates to the device for reading the data recorded in magnetic recording media, more particularly to possessing prevents the non-of data
The magnetic recording media reading device for the function that method is obtained.
Background technology
In ATM (Automated Teller Machine：Self-service device, automatic teller machine) or CD (Cash
Dispenser：Cash dispenser) etc. in traction processing apparatus, be equipped with the card reader for reading magnetic card.In such transaction
In processing unit, being claimed for the data that are recorded in the illegal magnetic stripe for obtaining card is generated when magnetic card is inserted into card reader recently
To steal the crime of (skimming).
As the example typically stolen, there are following methods：Will be provided with magnetic head illegal reading device be arranged on ATM or
The vicinity of the card insert opening for the card reader that CD possesses, by the magnetic head of the illegal reading device, illegal obtain is inserted into Card Reader
The data of the magnetic card of device.
Stolen for above-mentioned, various countermeasures are proposed so far.For example, in patent document 1 described later, describing
The card reader of interference magnetic field producer is provided with the vicinity of card insert opening.In the card reader, by disturbing magnetic field producer,
Interference magnetic field is produced in the exterior lateral area of card insert opening.Therefore, illegal reading device is mounted with the outside of card insert opening,
The data read by the device are also interfered the influence in magnetic field, as the different data of the former data from being recorded in card.Thus,
It can prevent that the data of card from illegally being obtained.
In patent document 2 described later, the ring arranged around card insert opening for producing interference magnetic field is described
The card reader of shape antenna.The antenna surface of loop aerial and the frontoparallel of card insert opening.Also in card insert opening in the card reader
Exterior lateral area produce interference magnetic field, so being mounted with illegal reading device on the outside of card insert opening, can also prevent
The data of card are illegally obtained.
In patent document 3 described later, describe with the direction of the magnetic line of force sent from interference magnetic field producer relative to
The inclined mode of direction of insertion of card is configured with the card reader of interference magnetic field producer.In the card reader, due to interference magnetic field
Direction and the direction of insertion of card it is not parallel, so can reduce in interference magnetic field producer rear digital independent use
Magnetic head apply interference magnetic field influence.
Figure 15 represents possess the hand card reader of interference magnetic field producer one.In the matrix 30 of card reader 300
Inside, there is provided magnetic head 33 and interference magnetic field producer 34.In the front portion of matrix 30, there is provided panel part 31.In panel part 31
On, form the insert port 32 for being inserted for magnetic card 50.Magnetic head 33 reads what is recorded in the magnetic card 50 inserted from insert port 32
Data.Interference magnetic field producer 34 is configured near insert port 32, produces interference magnetic field Y.Interference magnetic field Y, which is acted on, to be pacified
Illegal reading device SK near the insert port 32 before panel part 31, prevention is illegally read by illegal reading device SK
Take the data of magnetic card 50.
Figure 16 represents possess the motor-type card reader of interference magnetic field producer one.In the matrix 40 of card reader 400
Inside, there is provided magnetic head 42, delivery roll 43 and card detection sensor 44.Delivery roll 43 is rotated by motor (not shown),
Transmit magnetic card 50.Magnetic head 42 reads the data recorded in the magnetic card 50 being transmitted.Card detection sensor 44 detects the magnetic being transmitted
The position of card 50.In the front portion of matrix 40, there is provided insertion unit 41.In insertion unit 41, form for supplying magnetic card 50
The insert port 47 of insertion.In the inside of insertion unit 41, there is provided magnetic head 45 and interference magnetic field producer 46.Magnetic head 45 detects quilt
It is inserted into the magnetic stripe of the magnetic card 50 of insert port 47.Disturb magnetic field producer 46 to be located near insert port 47, produce interference magnetic field Y.
The illegal reading device SK that interference magnetic field Y is acted near the insert port 47 being installed in before insertion unit 41, is prevented
The data of magnetic card 50 are illegally read by illegal reading device SK.
Patent document 1：Japanese Unexamined Patent Publication 2001-67524 publications
Patent document 2：No. 4425674 publications of Japanese Patent Publication No.
Patent document 3：Japanese Unexamined Patent Publication 2013-12022 publications
In the card reader 300 shown in Figure 15, there is problems with：If in order to reliably prevent illegal reading device SK's
Steal and make interference magnetic field Y intensity enhancing, then due to the intensity in the magnetic field for the rear side generation for disturbing magnetic field producer 34
Also become strong, so interference magnetic field Y involves the reading performance reduction of (arrival) magnetic head 33 and data, or the peripheral equipment at rear is produced
Raw harmful effect.
In addition, in the card reader 400 shown in Figure 16, there is problems with：If in order to reliably prevent illegal read from filling
Put stealing for SK and make interference magnetic field Y intensity enhancing, then due to the magnetic field produced in the rear side of interference magnetic field producer 46
Intensity also become strong, so interference magnetic field Y involves magnetic head 45 and the reduction of the detection performance of magnetic stripe, or interference magnetic field Y involves magnetic head
42 and the reading performance reduction of data, or harmful effect is produced to the peripheral equipment at rear.
Problem as described above can be solved by the way that interference magnetic field producer is configured as described in Patent Document 3, but
In patent document 3, single interference magnetic field producer is only provided with.Now, due to the interference sent from interference magnetic field producer
Magnetic field is dissipated, so being difficult to make interference magnetic field concentration install the place of illegal reading device, one can not be said preventing from stealing
It is fixed perfectly sound.In addition, in the case where magnetic head is located at the vicinity of interference magnetic field producer, the interference magnetic field for having diverging is involved (arrival)
The danger of the magnetic head.
The content of the invention
Therefore, it is an object of the present invention to provide can be reliable to the interference magnetic field of illegal reading device effect strength
Ground prevents from stealing, and such interference magnetic field does not result in dysgenic magnetic recording media to magnetic head or peripheral equipment and reads dress
Put.
Magnetic recording media reading device involved in the present invention possesses：Insert port, is inserted for magnetic recording media；Magnetic head, from
Magnetic recording media after being inserted to the insert port reads data；And magnetic field generation section, produce for disturbing by being installed in
Illegal reading device near insert port reads the interference magnetic field of the data of magnetic recording media.Magnetic field generation section is produced by the first magnetic field
Life portion and the second magnetic field generation section are constituted.Interference magnetic of first and second magnetic field generation section to be produced from the first magnetic field generation section
The second magnetic field generation section and from the second magnetic field generation section produce interference magnetic field by the first magnetic field generation section by way of
It is disposed facing.In addition, in region between the first magnetic field generation section and the second magnetic field generation section, being produced from respective magnetic field
The direction in the interference magnetic field that portion is produced is identical.
By so constituting, the magnetic field produced respectively in the first magnetic field generation section and the second magnetic field generation section, in two magnetic
In region between the generating unit of field, direction turns into identical and mutually strengthened.In addition, the magnetic produced in respective magnetic field generation section
Field will not be dissipated by the magnetic field generation section of opposed other side side.Therefore, in the region between two magnetic field generation sections, strength
Interference magnetic field concentration produce.Thus, by the interference magnetic fields of such strength in illegal reading device, so as to reliably
Prevent from stealing.On the other hand, due to being concentrated in region of the interference magnetic field between two magnetic field generation sections of strength, so can be by
The situation of influence in magnetic field of magnetic head or peripheral equipment being interfered prevents trouble before it happens.
In the present invention, when the width of the magnetic recording media by insert port is inserted into is set to left and right directions,
Can be the side for the left and right that the first magnetic field generation section is arranged on insert port, the second magnetic field generation section is arranged on insert port
The opposite side of left and right.Now, the side in the interference magnetic field in the region between the first magnetic field generation section and the second magnetic field generation section
To substantial parallel with the width of magnetic recording media.
According to so, relative to illegal reading device, make interference magnetic fields in the width (left and right of magnetic recording media
Direction), so that it can be reliably prevented that stealing.
In the present invention, when the thickness direction of the magnetic recording media by insert port is inserted into is set to above-below direction,
Can the first magnetic field generation section be arranged on side above and below insert port, the second magnetic field generation section is arranged on insert port
Opposite side up and down.Now, the side in the interference magnetic field in the region between the first magnetic field generation section and the second magnetic field generation section
To substantial parallel with the thickness direction of magnetic recording media.
According to so, relative to illegal reading device, make interference magnetic fields in magnetic recording media thickness direction (up and down
Direction), so that it can be reliably prevented that stealing.
In the present invention, left and right directions is set in the width of the magnetic recording media by insert port is inserted into, by thickness
Spend when direction is set to above-below direction or the first magnetic field generation section is arranged on side and the insert port of the left and right of insert port
Above and below side, the second magnetic field generation section is arranged on another above and below the opposite side of the left and right of insert port and insert port
Side.Now, the direction in the interference magnetic field in the region between the first magnetic field generation section and the second magnetic field generation section is relative to magnetic
The width and thickness direction of recording medium are tilted.
According to so, for illegal reading device, make interference magnetic fields in tilted direction, so that it can be reliably prevented that stealing
Take.
In the present invention, it is preferred to first and second magnetic field generation section across located at magnetic recording media magnetic stripe passed through
Position it is arranged opposite.
According to so, because magnetic stripe is contained between the first magnetic field generation section and the second magnetic field generation section by position
The region of the interference magnetic field concentration of strength, so can effectively prevent from illegally obtaining by illegal reading device on position at this
The data of magnetic stripe.
In the present invention, it is preferred to disturb region of the magnetic field between the first magnetic field generation section and the second magnetic field generation section to show
Most strong magnetic force.
Thus, for illegal reading device, most strong interference magnetic field is acted on, can be more reliably prevented from stealing.
In the present invention, the first and second magnetic field generation section can also comprising the magnetic core that is made up of magnetic material and
The coil wound on the magnetic core.
According to so, due to interference magnetic core of the magnetic field by the second magnetic field generation section produced in the first magnetic field generation section,
Interference magnetic core of the magnetic field by the first magnetic field generation section produced in second magnetic field generation section, will not send out respective interference magnetic field
Dissipate, region of the interference magnetic field concentration between two magnetic field generation sections can be made.Furthermore it is possible to the electric current crossed according to coil midstream,
The intensity in adjustment interference magnetic field.
In the present invention, it is preferred in the central shaft of the magnetic core of the first magnetic field generation section and the magnetic core of the second magnetic field generation section
Heart axle is consistent.
Thus, in the region between the first magnetic field generation section and the second magnetic field generation section, it can be easier to make interference magnetic
Concentrate field.
In the present invention, guiding magnetic circuit can also be set across first and second magnetic field generation section, and the guiding magnetic circuit is used for
The magnetic field in outside among guiding interference magnetic field, towards the region between the first magnetic field generation section and the second magnetic field generation section.
According to so, the magnetic field (stray field) in the outside in the region between two magnetic field generation sections of direction is directed to guiding magnetic
Road and be suppressed extension, so stray field can be avoided to have undesirable effect magnetic head or peripheral equipment.
Invention effect：
In accordance with the invention it is possible to which the interference magnetic field of strength can be acted on reliably to prevent to illegal reading device by providing
Steal, and the magnetic recording media reading device that such interference magnetic field will not have undesirable effect to magnetic head or peripheral equipment.
Brief description of the drawings
Fig. 1 is the electrical module figure of the card reader of first embodiment.
Fig. 2A is the top view of the card reader of first embodiment.
Fig. 2 B are the side views of the card reader of first embodiment.
Fig. 2 C are the front views of the card reader of first embodiment.
Fig. 3 is the configuration diagram for disturbing magnetic field producer in first embodiment.
Fig. 4 is the front view for the distribution for illustrating the interference magnetic field in first embodiment.
Fig. 5 A are the top views for the effective coverage for illustrating the interference magnetic field in first embodiment.
Fig. 5 B are the side views for the effective coverage for illustrating the interference magnetic field in first embodiment.
Fig. 5 C are the front views for the effective coverage for illustrating the interference magnetic field in first embodiment.
Fig. 6 A are the top views of the card reader of second embodiment.
Fig. 6 B are the side views of the card reader of second embodiment.
Fig. 6 C are the front views of the card reader of second embodiment.
Fig. 7 A are the top views of the card reader of the 3rd embodiment.
Fig. 7 B are the side views of the card reader of the 3rd embodiment.
Fig. 7 C are the front views of the card reader of the 3rd embodiment.
Fig. 8 is the configuration diagram for disturbing magnetic field producer in the 3rd embodiment.
Fig. 9 is the front view for the distribution for illustrating the interference magnetic field in the 3rd embodiment.
Figure 10 A are the top views for the effective coverage for illustrating the interference magnetic field in the 3rd embodiment.
Figure 10 B are the side views for the effective coverage for illustrating the interference magnetic field in the 3rd embodiment.
Figure 10 C are the front views for the effective coverage for illustrating the interference magnetic field in the 3rd embodiment.
Figure 11 is the front view for the effective coverage for illustrating the interference magnetic field in the 4th embodiment.
Figure 12 is the top view of the card reader of the 5th embodiment.
Figure 13 is the profile of the card reader of the 6th embodiment.
Figure 14 is the electrical module figure of the card reader of the 6th embodiment.
Figure 15 is the profile of conventional hand card reader.
Figure 16 is the profile of conventional motor-type card reader.
Description of reference numerals：
2 magnetic heads
3 magnetic field generation sections
12 insert ports
15 guiding magnetic circuits
31 interference magnetic field producers (the first magnetic field generation section)
31a magnetic cores (core)
31b coils
32 interference magnetic field producers (the second magnetic field generation section)
32a magnetic cores
32b coils
50 magnetic cards
51 magnetic stripes
100th, 200 card reader (magnetic recording media reading device)
Y disturbs magnetic field
Z effective coverages
Embodiment
It is described with reference to embodiments of the present invention.In the various figures, same reference numerals represent same section or right
Answer part.In following each embodiment, as magnetic recording media reading device, enumerate and read the data that are recorded in magnetic card
Exemplified by card reader.
(first embodiment)
1~Fig. 3 of reference picture illustrates the structure of the card reader of first embodiment.
As shown in figure 1, the card reader 100 of first embodiment possesses being made up of CPU for control device overall action
Control unit 1, the magnetic field generation section 3 for reading the magnetic head 2 of the magnetic data of record in magnetic card 50 (reference picture 2A), producing interference magnetic field,
Detect card detection sensor 4, solenoid (solenoid, the electromagnetism of driven opening/closing device (folding baffle plate, omission diagram) of magnetic card 50
Element) 5, the memory 6 of the data that storage head 2 is read or other information and as with superior device (such as ATM)
The HPI 7 of connecting portion.In addition, Fig. 1 structure is also common in the described later second to the 5th embodiment.
Fig. 2A~Fig. 2 C represent the construction of card reader 100.The card reader 100 is identical with the card reader 300 shown in Figure 15
Hand card reader.Arrow F in figure represents front direction, and arrow B represents rear to arrow L represents left direction, arrow R tables
Show right direction, arrow U represents direction, and arrow D represents lower direction (in other figs. similarly).As shown in Figure 2 A, left and right
(LR) direction is the width of magnetic card 50, as shown in Figure 2 B, and (UD) direction is the thickness direction of magnetic card 50 up and down.
The matrix 10 of card reader 100 is formed by resin, is provided with magnetic head 2 as shown in dotted line in Fig. 2 B inside it.
In the inside of matrix 10, in addition to magnetic head 2, Fig. 1 control unit 1, card detection sensor 4, solenoid 5, storage are also provided with
Device 6 and HPI 7, but in Fig. 2A~Fig. 2 C, eliminate these diagrams.
In the front portion of matrix 10, there is provided the panel part 11 formed by resin.In panel part 11, as shown in Figure 2 C, shape
The recess 13 connected into the insert port 12 inserted for magnetic card 50, with the insert port 12.Magnetic card 50 is inserted by user from arrow a directions
Enter to insert port 12.Magnetic head 2 reads the data recorded in the magnetic stripe 51 for the magnetic card 50 being inserted into.Magnetic stripe 51 is arranged on magnetic card 50
The back side (reverse side).Magnetic card 50 is one of " magnetic recording media " in the present invention.
In the front face side of panel part 11, there is provided incorporating section 11a and incorporating section 11b.11a, 11b also may be used for these incorporating sections
With integrally formed with panel part 11, can also with the split of panel part 11 and panel part is fixed on by fixed component or binding agent etc.
On 11.Incorporating section 11a, 11b inside are cavity, interference magnetic field producer 31 have been stored in the 11a of incorporating section, in incorporating section
Interference magnetic field producer 32 has been stored in 11b.Magnetic field producer 31,32 is disturbed via lead (not shown), with being installed in base
Control unit 1 (Fig. 1) electrical connection on circuit substrate in body 10.
As shown in Figure 2 C, interference magnetic field producer 31 is arranged on the right side of insert port 12, disturbs the quilt of magnetic field producer 32
It is arranged on the left side of insert port 12.These interference magnetic field producer 31, magnetic field generation sections 3 of 32 pie graphs 1.Magnetic field is disturbed to produce
Device 31 is equivalent to " the first magnetic field generation section " in the present invention, and interference magnetic field producer 32 is equivalent to " the second magnetic in the present invention
Field generating unit ".
As shown in figure 3, interference magnetic field producer 31 passes through columned magnetic core 31a, Yi Ji for being made up of magnetic material
The coil 31b wound on magnetic core 31a is constituted.Equally, interference magnetic field producer 32 by by magnetic material constitute it is cylindric
Magnetic core 32a and the coil 32b that is wound on magnetic core 32a constitute.Here, the magnetic core 31a of interference magnetic field producer 31
Magnetic core 32a of the central shaft with disturbing magnetic field producer 32 central shaft is consistent as shown in chain-dotted line L, but both central shafts
There can also be slight deviations.
Interference magnetic field producer 31 and interference magnetic field producer 32 are disposed facing.Therefore, because for the logical of coil 31b
Electricity and the interference magnetic field that produces from interference magnetic field producer 31 are by disturbing the magnetic core 32a of magnetic field producer 32.Further, since pin
The interference magnetic field produced to coil 32b energization from interference magnetic field producer 32 is by disturbing the magnetic core of magnetic field producer 31
31a.Also, with interference magnetic field producer 31 and interference magnetic field producer 32 between region, from interference magnetic field producer 31,
The direction in the 32 interference magnetic fields produced turns into identical mode, by (Fig. 1) control coil of control unit 1 31b, 32b energization.This
Outside, control unit 1 is according to the electric current flowed through in coil 31b, 32b, the intensity in adjustment interference magnetic field.
Fig. 4 represents the interference magnetic field Y produced from interference magnetic field producer 31,32 distribution.Produced in interference magnetic field
In region between device 31 and interference magnetic field producer 32, interference magnetic field Y and the width that left and right (LR) direction is magnetic card 50
Essentially become parallel.In this region, the respective interference magnetic field from the interference generation of magnetic field producer 31,32 is due to direction phase
Mutually strengthen together, and because magnetic core 31a, 32a of the interference magnetic field producer by opposed other side side are so will not dissipate.
Especially because magnetic core 31a, 32a central shaft are consistent, so being easier to make interference magnetic field concentration.Therefore, in the production of interference magnetic field
In region between raw device 31,32, the interference magnetic field concentration of strength is produced.On the other hand, in the region in the outside in the region,
Disturb the weakened in magnetic field.
Thus, due to showing to disturb magnetic field most strong magnetic force in the region between interference magnetic field producer 31,32, so
Make the interference magnetic fields in the region in illegal reading device, so that it can be reliably prevented that stealing.Hereinafter, will be in interference magnetic field
The region of the interference magnetic field concentration of between generator 31,32, strength is referred to as " effective coverage ".In Fig. 5 A~Fig. 5 C, symbols Z
Shown region is effective coverage.
According to above-mentioned first embodiment, magnetic field producer 31,32 is disturbed in the left and right sides configuration of insert port 12, by force
The interference magnetic field concentration of power is in the effective coverage Z between them.Therefore, as shown in Fig. 5 A~Fig. 5 C, even in insert port 12
Illegal reading device SK is set on the neighbouring corresponding position of magnetic head 2, due to for illegal reading device SK, effective coverage Z's
The interference magnetic field of strength is acted in the lateral direction, so illegal reading device SK can not normally read the magnetic stripe 51 of magnetic card 50
The data of middle record.On the other hand, due to strength interference magnetic field concentration in interference magnetic field producer 31,32 between effective district
Domain Z, so the situation for the influence that (can omit and illustrate) magnetic field that is interfered by magnetic head 2 or peripheral equipment prevents trouble before it happens.
In addition, in the first embodiment, as shown in Fig. 2A~Fig. 2 C, interference magnetic field producer 31,32 is across magnetic card 50
The position (in Fig. 2 C near the right-hand member of insert port 12) that is passed through of magnetic stripe 51 be disposed facing.Therefore, because magnetic stripe 51 is logical
Cross position and be contained in effective coverage Z shown in Fig. 5 A~Fig. 5 C, so can effectively prevent at this by illegally being read on position
Device SK is taken illegally to obtain the data of magnetic stripe 51.
(second embodiment)
Fig. 6 A~Fig. 6 C represent the card reader 100 of second embodiment.In first embodiment (Fig. 2A~Fig. 2 C),
The front face side of panel part 11 sets incorporating section 11a, 11b, stored respectively in these incorporating sections interference magnetic field producer 31,
32.On the other hand, in this second embodiment, incorporating section 11a, 11b are omitted, interference magnetic field producer is stored in panel part 11
31、32。
On other points, due to identical with first embodiment, so omitting detailed description.In second embodiment
In card reader 100, the situation identical effect with first embodiment can be also obtained.In addition, in the 3rd embodiment party described later
Formula can also use the construction of second embodiment into the 5th embodiment.
(the 3rd embodiment)
Fig. 7 A~Fig. 7 C represent the card reader 100 of the 3rd embodiment.In first embodiment (Fig. 2A~Fig. 2 C),
The left and right of insert port 12 is configured with interference magnetic field producer 31,32, but in the third embodiment, in matching somebody with somebody up and down for insert port 12
Put interference magnetic field producer 31,32.Magnetic field producer 31,32 is disturbed as shown in Figure 8 by magnetic core 31a, 32a and coil
31b, 32b are constituted, and the structure is identical with Fig. 3.
Fig. 9 represents the interference magnetic field Y produced from interference magnetic field producer 31,32 distribution.Produced in interference magnetic field
In region (effective coverage) between device 31 and interference magnetic field producer 32, interference magnetic field Y is magnetic card 50 with (UD) direction up and down
Thickness direction essentially become parallel.It is identical with first embodiment, in effective coverage, from interference magnetic field producer 31,
The 32 respective interference magnetic fields produced are identical so mutually reinforcement, and due to the interference magnetic by opposed other side side due to direction
Magnetic core 31a, 32a of field generator are so will not dissipate.Therefore, the interference magnetic field concentration of strength is produced in effective coverage.Separately
On the one hand, in the region in the outside of effective coverage, the weakened in magnetic field is disturbed.
Thus, in the case of the third embodiment, due to also showing to disturb magnetic field most strong magnetic force in effective coverage,
So the interference magnetic fields in the region are in illegal reading device, so that it can be reliably prevented that stealing.
According to the 3rd above-mentioned embodiment, magnetic field producer 31,32 is disturbed in the configuration of both sides up and down of insert port 12, by force
The interference magnetic field concentration of power is in the effective coverage between them.Therefore, as shown in Figure 10 A~Figure 10 C, even in insert port 12
Illegal reading device SK is provided with the neighbouring corresponding position of magnetic head 2, due to for illegal reading device SK, effective coverage Z
The interference magnetic field of strength act in the vertical direction, so illegal reading device SK can not normally read the magnetic stripe of magnetic card 50
The data recorded in 51.On the other hand, effective coverage of the magnetic field between interference magnetic field producer 31,32 is disturbed due to strength
Concentrated in Z, so the situation for the influence that (can omit and illustrate) magnetic field that is interfered by magnetic head 2 or peripheral equipment is prevented in not
So.
In addition, in the third embodiment, as shown in Fig. 7 A~Fig. 7 C, interference magnetic field producer 31,32 is across magnetic card 50
The position (in Fig. 7 C near the right-hand member of insert port 12) that is passed through of magnetic stripe 51 be disposed facing.Therefore, because magnetic stripe 51 is logical
Cross position and be contained in effective coverage Z shown in Figure 10 A~Figure 10 C, thus can effectively prevent this pass through it is illegal on position
Reading device SK illegally obtains the data of magnetic stripe 51.
(the 4th embodiment)
Figure 11 represents the front view (omitting top view and side view) of the card reader 100 of the 4th embodiment.It is real the 4th
Apply in mode, in the left side of insert port 12 and upside (upper left) configuration interference magnetic field producer 31, on the right side of insert port 12 and
Downside (bottom right) configuration interference magnetic field producer 32.Disturb the structure of magnetic field producer 31,32 identical with Fig. 3 and Fig. 8.On it
His point, due to identical with first embodiment etc., so omitting detailed description.
In the card reader 100 of the 4th embodiment, due to strength interference magnetic field concentration in interference magnetic field producer 31,
Effective coverage Z between 32, so the interference magnetic field in the region is acted on relative to illegal reading device SK on tilted direction, from
And can reliably prevent from stealing.
In addition, position (insert port 12 in Figure 11 that interference magnetic field producer 31,32 is passed through across the magnetic stripe 51 of magnetic card 50
Right-hand member near) be disposed facing, magnetic stripe 51 is contained in effective coverage Z by position, so can effectively prevent from being based on
The illegal acquirement of illegal reading device SK data.
In addition, size and the position etc. of insert port 12 on panel part 11, can also be with Figure 11 on the contrary, in insert port 12
Left side and downside (lower-left) configuration interference magnetic field producer 31, the right side of insert port 12 and upside (upper right) configuration interference magnetic
Field generator 32.
(the 5th embodiment)
Figure 12 represents the front view (omitting top view and side view) of the card reader 100 of the 5th embodiment.It is real the 5th
Apply in mode, the guiding for the U-shaped being made up of magnetic is set across interference magnetic field producer 31 and interference magnetic field producer 32 ground
Magnetic circuit 15.The guiding magnetic circuit 15 is used for the magnetic field (leakage for being directed towards disturbing the outside of the effective coverage between magnetic field producer 31,32
Magnetic field).On other points, due to identical with first embodiment, so omitting detailed description.
According to the 5th embodiment, because stray field is directed to guiding magnetic circuit 15 and is suppressed extension, so can keep away
Exempt from stray field to have undesirable effect magnetic head 2 or peripheral equipment.In addition, in foregoing second embodiment to the 4th embodiment party
In formula and the 6th embodiment described later, above-mentioned guiding magnetic circuit 15 can be set.
(the 6th embodiment)
Figure 13 represents the card reader 200 of the 6th embodiment.In first embodiment into the 5th embodiment, hand is enumerated
Exemplified by the card reader 100 of dynamic formula.On the other hand, the card reader 200 of the 6th embodiment is and the phase of card reader 400 shown in Figure 16
The card reader of same motor-type.
In the inside of the matrix 20 of card reader 200, there is provided the first magnetic head 21, delivery roll 8a and card detection sensor 4.
Delivery roll 8a is rotated by motor (not shown), transmits magnetic card 50.First magnetic head 21 reads in the magnetic card 50 being transmitted and recorded
Data.Card detection sensor 4 detects the position for the magnetic card 50 being transmitted.
In the front portion of matrix 20, there is provided insertion unit 20a.In insertion unit 20a, form what is inserted for magnetic card 50
Insert port 20b.In insertion unit 20a inside, there is provided the second magnetic head 22.The detection of second magnetic head 22 is inserted into insert port
The magnetic stripe of 20b magnetic card 50.Insertion unit 20a before, interference magnetic field producer 31 and interference magnetic field producer 32 across
Insert port 20b is setting up and down.
Figure 14 represents the electrical module of card reader 200.Here, Fig. 1 magnetic head 2 is replaced into the first magnetic head 21 and the second magnetic
First 22, in addition, having added card transport part 8.The motor of card transport part 8 by making delivery roll 8a rotations etc. is constituted.
In the card reader 200 of the 6th embodiment, because the interference magnetic field concentration for being also strength is produced in interference magnetic field
Between device 31,32, so making the interference magnetic fields in illegal reading device (omitting diagram), so that it can be reliably prevented that stealing
Take.Further, since the interference magnetic field of strength is concentrated between interference magnetic field producer 31,32, so can be by the second magnetic head 22
Or the situation of the influence in peripheral equipment (the omitting diagram) magnetic field that is interfered prevents trouble before it happens.
In addition, interference magnetic field producer 31,32 can also match somebody with somebody in insert port 20b left and right as shown in the first embodiment
Put, can also be oblique arranged opposite as shown in the 4th embodiment.In addition it is also possible to which interference magnetic field producer 31,32 is stored
In in insertion unit 20a.
(other embodiment)
In the present invention, in addition to above-mentioned embodiment, additionally it is possible to using following such various embodiments.
In above-mentioned each embodiment, the example for being provided with two interference magnetic field producers 31,32 is shown, but it is also possible to
Appropriately combined first embodiment (Fig. 2A~Fig. 2 C), the 3rd embodiment (Fig. 7 A~Fig. 7 C) and the 4th embodiment (figure
11).For example, in the case where being combined with first embodiment and the 3rd embodiment, dividing into the left and right of insert port 12 and above
Put total four interference magnetic field producer.
In above-mentioned each embodiment, will interference magnetic field producer 31,32 by magnetic core 31a, 32a and coil 31b,
32b is constituted, but interference magnetic field producer 31,32 only can also be made up of coil 31b, 32b.In addition it is also possible to which magnetic field will be disturbed
Generator 31,32 is made up of loop aerial.
In above-mentioned each embodiment, the situation for describing insertion magnetic card 50 steals countermeasure, if but being produced from magnetic field
Portion 3 produces interference magnetic field all the time, then in the case where returning magnetic card 50, can also prevent from stealing.In addition, producing interference magnetic all the time
Field is not essential for purposes of the invention, interference magnetic field can also be set during stopping.
In above-mentioned each embodiment, as magnetic recording media, list exemplified by the back side has a magnetic card 50 of magnetic stripe 51.
But, the present invention can also be applied to the magnetic recording media reading device that processing magnetic stripe is in positive or front-back two-sided magnetic card.
In above-mentioned each embodiment, exemplified by listing magnetic card 50 as magnetic recording media.But, the invention is not restricted to
Magnetic card, additionally it is possible to the device applied to magnetic recording media as reading the bankbook with magnetic stripe.
Industrial applicibility
The present invention can be applied in device for automatic processing of transactions as ATM the card reader carried or read bankbook device or
Card reader carried in card authentication terminal etc., the various devices for reading magnetic recording media.
Claims (7)
1. a kind of magnetic recording media reading device, possesses：
Insert port, is inserted for magnetic recording media；
Magnetic head, the magnetic recording media after being inserted to the insert port reads data；And
Magnetic field generation section, produces interference magnetic field, and the interference magnetic field is used for the illegal reading by being installed near the insert port
The data for taking device to read the magnetic recording media are disturbed；
The magnetic recording media reading device is characterised by,
The magnetic field generation section is made up of the first magnetic field generation section and the second magnetic field generation section,
First magnetic field generation section includes the first magnetic core for being made up of magnetic material and wound on first magnetic core
First coil,
Second magnetic field generation section includes the second magnetic core for being made up of magnetic material and wound on second magnetic core
Second coil,
End on the central axis direction of first magnetic core and the end on the central axis direction of second magnetic core, with from the
What one magnetic field generation section was produced disturbs magnetic field by the second magnetic core of the second magnetic field generation section and is produced from the second magnetic field generation section
Interference magnetic field be disposed facing by way of the first magnetic core of the first magnetic field generation section,
End and second magnetic field generation section on the central axis direction of the first magnetic core of first magnetic field generation section
The region between end on the central axis direction of second magnetic core, the direction in the interference magnetic field produced from respective magnetic field generation section
It is identical,
The central shaft of first magnetic core of first magnetic field generation section and second magnetic of second magnetic field generation section
The central shaft of core is consistent, and the interference magnetic field from first magnetic field generation section generation from second magnetic field generation section with producing
Interference magnetic field direction identical mode by the second magnetic core of second magnetic field generation section, produced from second magnetic field
The interference magnetic field that portion is produced passes through institute in the direction identical mode with the interference magnetic field produced from first magnetic field generation section
The first magnetic core of the first magnetic field generation section is stated, so that interference magnetic field concentration results from the first of first magnetic field generation section
End on the central axis direction of second magnetic core of end and second magnetic field generation section on the central axis direction of magnetic core it
Between region.
2. magnetic recording media reading device as claimed in claim 1, it is characterised in that
During using the width of the magnetic recording media that is inserted to the insert port as left and right directions,
First magnetic field generation section is arranged on the side of the left and right of the insert port,
Second magnetic field generation section is arranged on the opposite side of the left and right of the insert port,
In region between first magnetic field generation section and second magnetic field generation section interference magnetic field direction with it is described
The width of magnetic recording media is substantial parallel.
3. magnetic recording media reading device as claimed in claim 1, it is characterised in that
During using the thickness direction of the magnetic recording media that is inserted to the insert port as above-below direction,
First magnetic field generation section is arranged on the side above and below the insert port,
Second magnetic field generation section is arranged on the opposite side above and below the insert port,
In region between first magnetic field generation section and second magnetic field generation section interference magnetic field direction with it is described
The thickness direction of magnetic recording media is substantial parallel.
4. magnetic recording media reading device as claimed in claim 1, it is characterised in that
Using the width of the magnetic recording media that is inserted to the insert port as left and right directions, and thickness direction is upper and lower
Xiang Shi,
First magnetic field generation section is arranged on the side above and below the side of the left and right of the insert port and the insert port,
Second magnetic field generation section is arranged on another above and below the opposite side of the left and right of the insert port and the insert port
Side,
In region between first magnetic field generation section and second magnetic field generation section interference magnetic field direction relative to
The width and thickness direction of the magnetic recording media are tilted.
5. the magnetic recording media reading device as described in any one of Claims 1-4, it is characterised in that
First magnetic field generation section and the second magnetic field generation section across located at the magnetic recording media magnetic stripe passed through
Position is disposed facing.
6. the magnetic recording media reading device as described in any one of Claims 1-4, it is characterised in that
Region of the interference magnetic field between first magnetic field generation section and second magnetic field generation section shows most strong
Magnetic force.
7. the magnetic recording media reading device as described in any one of Claims 1-4, it is characterised in that
Guiding magnetic circuit is set across first magnetic field generation section and the second magnetic field generation section, the guiding magnetic circuit is used to guide institute
State among interference magnetic field, outside towards the region between first magnetic field generation section and second magnetic field generation section
Magnetic field.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/003515 WO2014195991A1 (en) | 2013-06-04 | 2013-06-04 | Magnetic recording medium reader |
| JPPCT/JP2013/003515 | 2013-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104217187A CN104217187A (en) | 2014-12-17 |
| CN104217187B true CN104217187B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410234002.7A Expired - Fee Related CN104217187B (en) | 2013-06-04 | 2014-05-29 | Magnetic recording media reading device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6039070B2 (en) |
| CN (1) | CN104217187B (en) |
| WO (1) | WO2014195991A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062872B (en) * | 2014-03-06 | 2018-12-14 | 日本电产三协株式会社 | Card reader |
| JP2016189055A (en) * | 2015-03-30 | 2016-11-04 | 日本電産サンキョー株式会社 | Card reader |
| JP7115882B2 (en) * | 2018-03-29 | 2022-08-09 | 日本電産サンキョー株式会社 | Disturbing magnetic field generator and card reader |
| JP7178846B2 (en) * | 2018-09-26 | 2022-11-28 | 日本電産サンキョー株式会社 | Magnetic recording media processor |
| JP7328014B2 (en) * | 2019-06-06 | 2023-08-16 | ニデックインスツルメンツ株式会社 | card reader |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2560126A2 (en) * | 2011-08-19 | 2013-02-20 | Wincor Nixdorf International GmbH | Anti skimming module with minimized global interference field |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2621850C (en) * | 2005-09-09 | 2013-01-08 | Diebold, Incorporated | Automated banking machine anti-skimming card reader |
| JP4644592B2 (en) * | 2005-12-14 | 2011-03-02 | 日立オムロンターミナルソリューションズ株式会社 | Card processing device and data processing device |
| WO2010123471A1 (en) * | 2009-04-20 | 2010-10-28 | Cihat Celik Basar | Anti-fraud device for self service terminals |
| EP2572340A1 (en) * | 2010-05-18 | 2013-03-27 | Kronik Elektrik Elektronik Ve Bilgisayar Sistemleri Sanayi Ticaret Limited Sirketi | Driver circuit for transmitting coil of active antimagnetic card copying device |
| JP5759807B2 (en) * | 2011-06-29 | 2015-08-05 | 日本電産サンキョー株式会社 | Card insertion part and card reader |
-
2013
- 2013-06-04 WO PCT/JP2013/003515 patent/WO2014195991A1/en active Application Filing
- 2013-06-04 JP JP2015521155A patent/JP6039070B2/en active Active
-
2014
- 2014-05-29 CN CN201410234002.7A patent/CN104217187B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2560126A2 (en) * | 2011-08-19 | 2013-02-20 | Wincor Nixdorf International GmbH | Anti skimming module with minimized global interference field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104217187A (en) | 2014-12-17 |
| JP6039070B2 (en) | 2016-12-07 |
| JPWO2014195991A1 (en) | 2017-02-23 |
| WO2014195991A1 (en) | 2014-12-11 |
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