CN103733232B - Magnetic recording media reading device - Google Patents
Magnetic recording media reading device Download PDFInfo
- Publication number
- CN103733232B CN103733232B CN201180072818.9A CN201180072818A CN103733232B CN 103733232 B CN103733232 B CN 103733232B CN 201180072818 A CN201180072818 A CN 201180072818A CN 103733232 B CN103733232 B CN 103733232B
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- China
- Prior art keywords
- magnetic field
- magnetic
- recording media
- disturbing
- generation section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
-
- 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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/0873—Details of the card reader
Abstract
Card reader (1) possesses: insert port (22), inserts for magnetic card (21); Transmission mechanism (25��28), the magnetic card (21) that transmission is inserted from insert port (22); Magnetic head (29), reads data from the magnetic card (21) being transmitted; And magnetic field generation section (8), it is arranged near insert port (22). The front of magnetic field generation section (8) is provided with magnetic (36), forwards partially existed via magnetic (36) by the disturbing magnetic field produced from magnetic field generation section (8), thus strong jamming the action of a magnetic field is in being installed in the illegal reading device (300) before panel (200). On the other hand, owing to being not provided with magnetic at the rear of magnetic field generation section (8), so disturbing magnetic field does not rearward extend, thus magnetic head (29) can not the impact of disturbed magnetic field and read the data of magnetic card (21).
Description
Technical field
The present invention relates to the device for reading the data recorded in the magnetic recording medium, especially relate to the magnetic recording media reading device with the illegal function obtained preventing data.
Background technology
At ATM(AutomatedTellerMachine: Possum, automatic teller machine) or CD(CashDispenser: cash dispenser) etc. in traction processing apparatus, be equipped with the card reader for reading magnetic card. In such traction processing apparatus, recently, create in the magnetic stripe illegally obtaining card when magnetic card is inserted into card reader record data be referred to as the crime stealing (skimming).
As the example typically stolen, there is following methods: will be provided with the illegal reading device of magnetic head and be arranged near the card insert opening of ATM or the CD card reader possessed, by the magnetic head of this illegal reading device, the illegal data obtaining the magnetic card being inserted into card reader.
Above-mentioned is stolen, proposes various countermeasure up to now. Such as, after in the patent documentation 1 chatted, describe the card reader being arranged around disturbing magnetic field generator at card insert opening. In this card reader, by disturbing magnetic field generator, the exterior lateral area at card insert opening produces disturbing magnetic field. Therefore, even if being mounted with illegal reading device in the outside of card insert opening, this device the data read are also affected by the impact of disturbing magnetic field, become the data different from the former data of record in card. Thereby, it is possible to prevent the data of card from illegally being obtained.
Additionally, after in the patent documentation 2 chatted, describe the card reader having arranged the loop aerial for producing disturbing magnetic field around card insert opening. The antenna surface of loop aerial and the frontoparallel of card insert opening. This card reader also produces disturbing magnetic field in the exterior lateral area of card insert opening, even if so being mounted with illegal reading device in the outside of card insert opening, it is also possible to prevent the data of card from illegally being obtained.
Figure 19 represents an example of the card reader possessing disturbing magnetic field generator. Card insert opening unit 24 it is provided with before the casing 100 of card reader 1. On card insert opening unit 24, form the insert port 22 inserted for magnetic card 21. It has been arranged around disturbing magnetic field generator 35 in insert port 22. The magnetic head 29 being internally provided with the data reading magnetic card 21 at casing 100. Card reader 1 is provided in the inner side of the panel 200 of traction processing apparatus. The disturbing magnetic field that disturbing magnetic field generator 35 produces acts on the illegal reading device 300 being installed in before panel 200, stops and illegally obtains data from the magnetic card 21 inserted along A direction.
Prior art literature
Patent documentation
Patent documentation 1: JP 2001-67524 publication
Patent documentation 2: specially permit No. 4425674 publication
The summary of invention
The problem that invention to solve
In the card reader 1 shown in Figure 19, there is problems in that to be reliably prevented stealing in illegal reading device 300, the intensity making disturbing magnetic field is more strong, the intensity in the magnetic field then produced at the rear side of disturbing magnetic field generator 35 also becomes strong, so disturbing magnetic field arrives the magnetic head 29 in casing 100, thus the reading performance of data reduces.
Summary of the invention
Therefore, it is an object of the invention to, it is provided that a kind of magnetic recording media reading device, this magnetic recording media reading device makes strong jamming the action of a magnetic field in illegal reading device, and disturbing magnetic field does not arrive magnetic head, so that the reading performance of data does not reduce.
For solving the means of problem
Magnetic recording media reading device involved in the present invention possesses: insert port, inserts for magnetic recording media; Transmission mechanism, the magnetic recording media that transmission is inserted from this insert port; Magnetic head, reads data from the magnetic recording media transmitted by this transmission mechanism; And magnetic field generation section, it is arranged near insert port, produce the disturbing magnetic field being used for disturbing the data of the illegal reading device reading magnetic recording media by installing in the front of this insert port, additionally, be provided with for making the disturbing magnetic field produced from magnetic field generation section partially not arrive magnetic or the loop aerial of magnetic head at (bias, skewness).
By such composition, the disturbing magnetic field produced from magnetic field generation section exists partially due to the effect of magnetic or loop aerial, so disturbing magnetic field does not arrive magnetic head. Therefore, in magnetic head, it is possible to impact ground, not disturbed magnetic field reads the data of magnetic recording media, thus avoiding the reading performance of data to reduce.
In the present invention, it is also possible to arrange magnetic in the front of magnetic field generation section, the disturbing magnetic field produced from magnetic field generation section forwards exists partially via magnetic.
In the present invention, it is also possible to arrange loop aerial in the front of magnetic field generation section, based on the disturbing magnetic field produced from magnetic field generation section, in loop aerial, produce disturbing magnetic field further by electromagnetic induction, thus disturbing magnetic field forwards exists partially.
In the present invention, it is also possible to arrange loop aerial in the front of magnetic field generation section, based on the disturbing magnetic field produced from magnetic field generation section, in loop aerial, produce disturbing magnetic field further by magnetic resonance, thus disturbing magnetic field forwards exists partially.
In the present invention, it is also possible in loop aerial, be inserted with magnetic.
In the present invention, the frequency of the disturbing magnetic field that loop aerial produces can also be the frequency lower than the frequency of the disturbing magnetic field of magnetic field generation section generation.
In the present invention, it is also possible to arrange magnetic at the rear of magnetic field generation section, this magnetic is configured near magnetic head. Now, magnetic can also constitute a part for the roller being opposed to setting with magnetic head. Additionally, magnetic can also be opposed with magnetic head, it is configured in one side or the both sides of this magnetic head.
In the present invention, magnetic is arranged on front and the rear of magnetic field generation section.
In the present invention, loop aerial is arranged on the front of magnetic field generation section, and magnetic is arranged on the rear of magnetic field generation section.
Invention effect
In accordance with the invention it is possible to provide a kind of magnetic recording media reading device, even if when making strong jamming the action of a magnetic field in illegal reading device, do not arrive magnetic head due to disturbing magnetic field, so the reading performance of data does not reduce.
Accompanying drawing explanation
Fig. 1 indicates that the block diagram of the electric structure of the card reader involved by embodiments of the present invention.
Fig. 2 is side cut away view and the front view of the card reader of the 1st embodiment.
Fig. 3 is the top view of magnetic card.
Fig. 4 indicates that the figure of the distribution of the disturbing magnetic field in the 1st embodiment.
Fig. 5 is an illustration for the oscillogram of the detection of magnetic stripe.
Fig. 6 is the side cut away view of the card reader of the 2nd embodiment.
Fig. 7 indicates that the figure of the distribution of the disturbing magnetic field in the 2nd embodiment.
Fig. 8 indicates that the figure of the distribution of the disturbing magnetic field in the 3rd embodiment.
Fig. 9 is an illustration for the circuit diagram of magnetic resonance.
Figure 10 is the side cut away view of the card reader of the 4th embodiment.
Figure 11 indicates that the figure of the distribution of the disturbing magnetic field in the 4th embodiment.
Figure 12 is the side cut away view of the side cut away view of the card reader of the 5th embodiment and roller.
Figure 13 indicates that the figure of the distribution of the disturbing magnetic field in the 5th embodiment.
Figure 14 indicates that the major part expanded view of the distribution of the disturbing magnetic field in the 6th embodiment.
Figure 15 is the side cut away view of the card reader of the 7th embodiment.
Figure 16 is the side cut away view of the card reader of the 8th embodiment.
Figure 17 is the side cut away view of the card reader of the 9th embodiment.
Figure 18 is the side cut away view of the card reader of the 10th embodiment.
The side cut away view of the card reader that Figure 19 is those that have previously been.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention. In the various figures, same reference numerals represents same section or corresponding part.
(the 1st embodiment)
First, with reference to Fig. 1 and Fig. 2, the structure of the card reader of the 1st embodiment is described.
As it is shown in figure 1, the card reader 1 of present embodiment possesses: control portion 2, it is made up of the CPU controlling the overall action of device; Magnetic information reading part 3, reads the magnetic data of record in magnetic card; Card transport part 4, transmits magnetic card; Card detection sensor 5, detects magnetic card; Memorizer 6, the magnetic data that storage is read by magnetic information reading part 3; HPI 7, as the connecting portion with upper stage arrangement (such as ATM); Magnetic stripe test section 10, the magnetic stripe of detection magnetic card; And magnetic field generation section 8, produce for disturbing the disturbing magnetic field of the reading of the data of record in magnetic stripe.
Control portion 2 comprises: magnetic field control unit 9, controls magnetic field generation section 8; And card transmission control portion 12, control card transport part 4. Magnetic stripe test section 10 and magnetic field generation section 8 are arranged in card insert opening unit 24. Magnetic stripe test section 10 comprises magnetic head 34(Fig. 2 described later).
As shown in Figure 2 (a) shows, before the casing 100 of card reader 1, card insert opening unit 24 it is provided with. On card insert opening unit 24, form the insert port 22 inserted for magnetic card (hereinafter referred to as " card ") 21. Card 21 is as it is shown on figure 3, have magnetic stripe 21a. Fig. 3 is the figure of card 21 in terms of the back side. Near insert port 22, it is provided with card and inserts detection sensor 23, the card 21 that detection is inserted into; Magnetic head 34, the magnetic stripe 21a of detection card 21; And magnetic field generation section 8, produce disturbing magnetic field.
Magnetic field generation section 8 is such as constituted by iron core with by the coil of its winding. From Fig. 2 (b) it can be seen that magnetic field generation section 8 is towards insert port 22, it is arranged on magnetic head 34 side of magnetic stripe detection.
In the inside of the casing 100 of card reader 1, it is provided with delivery roll 25��28, card position detection sensor 30��33, magnetic head 29. Delivery roll 25��28, transmits with 1 pair roller retaining wedge 21 respectively with 1 pair of setting across transmission path P. These delivery rolls 25��28 link with motor (omitting diagram) via transmission band (omitting diagram). Among 1 pair of delivery roll, a side is the driving roller of the revolving force of transmission motor, and the opposing party is driven in the driven voller that this driving roller rotates. Delivery roll 25��28, together with above-mentioned transmission band and motor, constitutes card transport part 4(Fig. 1). Card transport part 4 is an example of " transmission mechanism " in the present invention.
Card position detection sensor 30��33 is through the optical sensor of type, is respectively provided with opposed illuminating part and light accepting part across transmission path P. The configuration space of these sensors 30��33 is more shorter than the length in the transmission direction of magnetic card 21. Sensor 30 detects the situation of retaining wedge 21 on the nearest delivery roll 25 of insert port 22. The situation of the storage part (omitting diagram) of card is temporarily deposited in card 21 arrival that sensor 33 detection is inserted into. The position of the card 21 in sensor 31,32 detection transmission. These card position detection sensor 30��33 inserts together with detection sensor 23 with described card, constitutes card detection sensor 5(Fig. 1).
Magnetic head 29, between delivery roll 26 and delivery roll 27, is arranged on the downside of transmission path P. This magnetic head 29 in the process of transmission, reads the data of record on the magnetic stripe 21a of card 21 at the card 21 being inserted in transmission path P. Aforesaid magnetic head 34 is that magnetic head 29 is the magnetic head of the data recorded for being reproduced in magnetic stripe itself on the other hand for detecting the presence of the magnetic head of the data of record in magnetic stripe. The interval of magnetic head 29 and sensor 33 is slightly longer than the length in the transmission direction of card 21. Thus, when card 21 reaches storage part, namely when the front end of card 21 reaches the position of sensor 33, magnetic head 29 completes the reading of the data of record in card 21.
Card reader 1 is provided in the inner side of the panel 200 of traction processing apparatus. 21 insert ports 22 being imported into card reader 1 are blocked from what the opening of panel 200 inserted to A direction. Between the front of magnetic field generation section 8, panel 200 and card insert opening unit 24, it is equipped with the magnetic 36 that the high material of permeability as ferrite (ferrite) or ferrum is constituted. This magnetic 36 is installed on the support parts (omitting diagram) such as arranged on panel 200. By card reader 1 and magnetic 36, constitute the magnetic recording media reading device of the present invention.
Then, as shown in Figure 2 (a) shows, countermeasure is stolen when illustrating to be mounted with before panel 200 illegal reading device 300 comprising magnetic head.
If based on magnetic field control unit 9(Fig. 1) control, magnetic field generation section 8 flows through driving electric current, then magnetic field generation section 8 produces disturbing magnetic field. In the present embodiment, magnetic field generation section 8 flows continuously through driving electric current, thus producing disturbing magnetic field when magnetic field generation section 8 is normal. The disturbing magnetic field produced by magnetic field generation section 8, as indicated with broken lines in fig. 4, is imported into the magnetic 36 becoming a kind of waveguide, and forwards (X-direction) extends, and acts on illegal reading device 300. Therefore, the impact in the magnetic field that is interfered by the data of illegal reading device 300 reading, become the data different from the former data of record in card 21. Thereby, it is possible to prevent the data of card 21 from illegally being obtained.
On the other hand, magnetic field generation section 8 disturbing magnetic field produced is also present in the rear (Y-direction) of magnetic field generation section 8. But, owing to being not provided with magnetic at the rear of magnetic field generation section 8, so disturbing magnetic field rearward will not extend via magnetic. Therefore, disturbing magnetic field will not arrive the magnetic head 29 that magnetic data reads, thus magnetic head 29 can not the impact of disturbed magnetic field and read the data of card 21.
Like this, in the 1st embodiment, by arranging magnetic 36 in the front of magnetic field generation section 8, magnetic field generation section 8 disturbing magnetic field produced forwards exists partially via magnetic 36. Its result, the intensity of disturbing magnetic field becomes that front is strong and rear is weak. Thus, make strong jamming the action of a magnetic field in being installed in the illegal reading device 300 before panel 200 such that it is able to be reliably prevented and steal, additionally, disturbing magnetic field does not arrive the magnetic head 29 in card reader 1 such that it is able to avoid the reading performance of data to reduce.
Additionally, the disturbing magnetic field produced by magnetic field generation section 8 also acts on the magnetic head 34 of magnetic stripe detection. Therefore, even if when illegal reading device is connected to magnetic head 34 via lead-in wire, it is also possible to prevent data from illegally being obtained. Even if it addition, act on magnetic head 34 when disturbing magnetic field is normal, owing to magnetic head 34 need not reproduce magnetic data itself, so the front and back in the detection of magnetic stripe 21a such as can be utilized to detect the pattern difference of signal to detect magnetic stripe 21a. This situation illustrates with Fig. 5.
Fig. 5 (a) is the waveform driving electric current flow through in magnetic field generation section 8. Disturbing magnetic field corresponding with this driving electric current is produced from magnetic field generation section 8. Fig. 5 (b) is when being absent from disturbing magnetic field, from the waveform of the detection signal of magnetic head 34 output. Fig. 5 (c) is when there is disturbing magnetic field, from the waveform of the detection signal of magnetic head 34 output, becomes the waveform having synthesized Fig. 5 (a) and Fig. 5 (b). From Fig. 5 (c) it can be seen that in the front and back of moment t magnetic stripe being detected, the pattern of detection signal is different. Thus, according to the change of this pattern, it is possible to detection magnetic stripe.
(the 2nd embodiment)
Then, the 2nd embodiment of the present invention is described. It addition, about the electric structure of the card reader in the 2nd embodiment, due to identical with Fig. 1, so omitting the description.
Fig. 6 represents the card reader of the 2nd embodiment. In the 1st described embodiment (Fig. 2), in the front of magnetic field generation section 8, it is provided with magnetic 36. On the other hand, in the 2nd embodiment, in the front of magnetic field generation section 8, it is provided with loop aerial 37. This loop aerial 37 is also identical with magnetic 36, is arranged on the support parts (omitting diagram) being arranged on panel 200. By card reader 1 and loop aerial 37, constitute the magnetic recording media reading device of the present invention. About other structures, due to identical with Fig. 2, so omitting the explanation of repeating part.
From magnetic field generation section 8 often time produce disturbing magnetic field. In the present embodiment, magnetic field generation section 8 disturbing magnetic field (disturbing magnetic field) produced as shown in phantom in fig. 7, interlinks with loop aerial 37. Therefore, in loop aerial 37, by electromagnetic induction, produce such disturbing magnetic field (secondary disturbing magnetic field) as indicated by chain dotted lines. Further, even if a disturbing magnetic field does not arrive illegal reading device 300, secondary disturbing magnetic field also acts on illegal reading device 300. Therefore, the data read by illegal reading device 300 are subject to the impact of secondary disturbing magnetic field, become the data different from the former data of record in card 21. Thereby, it is possible to prevent the data of card 21 from illegally being obtained.
On the other hand, magnetic field generation section 8 disturbing magnetic field produced is also present in the rear (Y-direction) of magnetic field generation section 8. But, owing to being not provided with magnetic or loop aerial at the rear of magnetic field generation section 8, one time disturbing magnetic field will not rearward extend. Therefore, one time disturbing magnetic field will not arrive the magnetic head 29 that magnetic data reads, thus magnetic head 29 can not be read the data of card 21 by a disturbing magnetic field impact. It addition, the impact of the magnetic head 34 magnetic stripe detected about disturbing magnetic field, identical with the situation of the 1st embodiment.
Like this, in the 2nd embodiment, loop aerial 37 is set in the front of magnetic field generation section 8, based on the disturbing magnetic field produced by magnetic field generation section 8, produces the secondary disturbing magnetic field based on electromagnetic induction by loop aerial 37. Its result, one time disturbing magnetic field phenomenologically forwards exists partially via loop aerial 37. " partially at (skewness) " of the present invention, what also comprise in such performance is inclined to (skewness). Its result, the intensity of disturbing magnetic field becomes that front is strong and rear is weak. Thus, make strong jamming the action of a magnetic field in being installed in the illegal reading device 300 before panel 200 such that it is able to be reliably prevented and steal, additionally, disturbing magnetic field will not arrive the magnetic head 29 in card reader 1 such that it is able to avoid the reading performance of data to reduce.
(the 3rd embodiment)
Then, the 3rd embodiment of the present invention is described. It addition, about the structure of the card reader in the 3rd embodiment, due to identical with Fig. 1 and Fig. 6, so omitting the description.
In the 3rd embodiment, identical with the 2nd embodiment (Fig. 6), the front of magnetic field generation section 8 is provided with loop aerial 37. Wherein, when 2 embodiment, make loop aerial 37 produce secondary disturbing magnetic field by electromagnetic induction, on the other hand, when 3 embodiment, make loop aerial 37 produce secondary disturbing magnetic field by magnetic resonance.
As shown in Figure 9, magnetic resonance is following phenomenon: in time being configured with two resonant circuits with identical resonant frequency, the vibration in magnetic field produced by the resonance of the resonant circuit of a side is passed to the resonant circuit of the opposing party, the resonant circuit resonance of the opposing party and produce the vibration in the magnetic field of identical frequency.
Fig. 8 represents the distribution of the disturbing magnetic field in the 3rd embodiment. From magnetic field generation section 8 often time produce a disturbing magnetic field shown in dotted line. In the present embodiment, owing to utilizing magnetic resonance, so a disturbing magnetic field need not interlink with loop aerial 37. If being produced a disturbing magnetic field by magnetic field generation section 8 by resonating, then loop aerial 37 is resonated by magnetic resonance, in loop aerial 37, produces such secondary disturbing magnetic field as indicated by chain dotted lines. Further, this secondary disturbing magnetic field acts on illegal reading device 300. Therefore, identical with the situation of the 2nd embodiment, it is possible to prevent from illegally being obtained the data of card 21 by illegal reading device 300.
On the other hand, magnetic field generation section 8 disturbing magnetic field produced is also present in the rear (Y-direction) of magnetic field generation section 8. But, due to the rear in magnetic field generation section 8, it does not have arrange magnetic or loop aerial, so a disturbing magnetic field will not rearward extend. Therefore, identical with the situation of the 2nd embodiment, magnetic head 29 can not be read the data of card 21 by a disturbing magnetic field impact. It addition, the impact of a disturbing magnetic field about the magnetic head 34 that magnetic stripe is detected, identical with the situation of the 1st embodiment.
Like this, in the 3rd embodiment, loop aerial 37 is set in the front of magnetic field generation section 8, based on the disturbing magnetic field produced by magnetic field generation section 8, produces the secondary disturbing magnetic field based on magnetic resonance by loop aerial 37. Its result, one time disturbing magnetic field phenomenologically forwards exists partially via loop aerial 37. Its result, the intensity of disturbing magnetic field becomes that front is strong and rear is weak. Thus, make strong jamming the action of a magnetic field in being installed in the illegal reading device 300 before panel 200 such that it is able to be reliably prevented and steal, additionally, disturbing magnetic field will not arrive the magnetic head 29 in card reader 1 such that it is able to avoid the reading performance of data to reduce.
(the 4th embodiment)
Then, the 4th embodiment of the present invention is described. It addition, about the electric structure of the card reader in the 4th embodiment, due to identical with Fig. 1, so omitting the description.
Figure 10 represents the card reader of the 4th embodiment. In Fig. 10, the loop aerial 37 in Fig. 6 is inserted the magnetic 38 that the high material of permeability as ferrite or ferrum is constituted. About other structures, due to identical with Fig. 6, so omitting the explanation of repeating part.
Figure 11 represents the distribution of the disturbing magnetic field in the 4th embodiment. From magnetic field generation section 8 often time produce a disturbing magnetic field shown in dotted line. This disturbing magnetic field is fed to the magnetic 38 becoming a kind of guided wave road, and forwards (X-direction) extends, and acts on illegal reading device 300. Additionally, interlinked with loop aerial 37 by a disturbing magnetic field, in loop aerial 37, by electromagnetic induction, produce the secondary disturbing magnetic field shown in chain-dotted line. Further, this secondary disturbing magnetic field also acts on illegal reading device 300. Therefore, magnetic field generation section 8 both sides of the disturbing magnetic field produced and the secondary disturbing magnetic field produced by loop aerial 37 act on illegal reading device 300. Thus, it is possible to the data more efficiently preventing from card 21 are illegally obtained.
It addition, the impact of the magnetic head 29 magnetic data read about disturbing magnetic field, and the impact of magnetic head 34 that magnetic stripe is detected by disturbing magnetic field, identical with the situation of the 1st embodiment.
Additionally, at this, to be illustrated by electromagnetic induction generation secondary disturbing magnetic field, but when producing secondary disturbing magnetic field by magnetic resonance, the 4th embodiment also is able to be suitable for.
Like this, in the 4th embodiment, by arranging loop aerial 37 and magnetic 38 in the front of magnetic field generation section 8, one time disturbing magnetic field forwards exists partially via magnetic 38, and produces secondary disturbing magnetic field in loop aerial 37. Its result, the both sides of a disturbing magnetic field and secondary disturbing magnetic field can act on illegal reading device 300, makes higher disturbing magnetic field act on illegal reading device 300 such that it is able to be more reliably prevented from stealing. Additionally, disturbing magnetic field will not arrive the magnetic head 29 in card reader 1 such that it is able to avoid the reading performance of data to reduce.
(the 5th embodiment)
Then, the 5th embodiment of the present invention is described. It addition, about the electric structure of the card reader in the 5th embodiment, due to identical with Fig. 1, so omitting the description.
Figure 12 (a) represents the card reader of the 5th embodiment. In fig. 12 (a), it is opposed to magnetic head 29 be provided with the roller 27a for magnetic head 29 pressing card 21. This roller 27a, such as shown in Figure 12 (b), is made up of coating member 27c such as core components 27b and the rubber covering its periphery. Further, the material that core components 27b permeability as ferrite or ferrum is high is constituted. That is, in the present embodiment, a part of roller 27a becomes magnetic.
Figure 13 represents the distribution of the disturbing magnetic field in the 5th embodiment. From magnetic field generation section 8 often time produce the disturbing magnetic field shown in dotted line. Owing to this disturbing magnetic field intensity is strong, so forwards (X-direction) extends, act on illegal reading device 300. Illegally obtained therefore, it is possible to prevent blocking the data of 21 by illegal reading device 300.
On the other hand, magnetic field generation section 8 disturbing magnetic field produced is strong due to intensity, and also rearward (Y-direction) extends. But, owing to the core components 27b of the roller 27a opposed with magnetic head 29 is magnetic, so the first half of the disturbing magnetic field rearward extended is focused into roller 27a, magnetic head 29 will not be arrived. Additionally, the latter half of the disturbing magnetic field rearward extended is in the lower section of magnetic head 29, without influence on magnetic head 29. Therefore, magnetic head 29 can not the impact of disturbed magnetic field and read the data of card 21.
Like this, in the 5th embodiment, owing to being opposed to be provided with magnetic with magnetic head 29, so disturbing magnetic field (the first half) the magnetropism body being present in the rear of magnetic field generation section 8 exists partially. Its result, even if making disturbing magnetic field become strong, owing to disturbing magnetic field will not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce in order to prevent from stealing.
(the 6th embodiment)
Then, the 6th embodiment of the present invention is described. It addition, about the electric structure of the card reader in the 6th embodiment, due to identical with Fig. 1, so omitting the description.
Figure 14 (a) represents the major part of the card reader of the 6th embodiment. In the 6th embodiment, replace the roller 27a of the 5th embodiment (Figure 12), be provided with the magnetic 40 opposed with magnetic head 29. The material that this magnetic 40 permeability as ferrite or ferrum is high is constituted.
Like this, when being opposed to be provided with magnetic 40 with magnetic head 29, the disturbing magnetic field at the rear being present in magnetic field generation section 8 is shown in dotted line, and also magnetropism body 40 exists partially. Therefore, identical with the 5th embodiment, even if make disturbing magnetic field become strong to prevent from stealing, owing to disturbing magnetic field will not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce.
In Figure 14 (a), the one side of magnetic head 29 is provided with magnetic 40 but it also may as shown in Figure 14 (b), magnetic 40a, 40b are set in the both sides of magnetic head 29. Additionally, in fig. 12, it is also possible to the magnetic 40b of Figure 14 (b) is set in the downside of magnetic head 29. If the disturbing magnetic field that the magnetic 40b that so, then can pass through downside stops the latter half in Figure 13 effectively arrives magnetic head 29.
It addition, in Figure 12 and Figure 14, the position opposed with magnetic head 29 is provided with magnetic, but the position of magnetic is not limited only to the position opposed with magnetic head 29, it it is the position of the vicinity of magnetic head 29.
(the 7th embodiment)
Figure 15 represents the 7th embodiment of the present invention. 7th embodiment is combined with the 1st embodiment (Fig. 2) and the 5th embodiment (Figure 12). That is, it is provided with magnetic 36 in the front of magnetic field generation section 8, and is opposed to be provided with the roller 27a comprising magnetic with magnetic head 29 at the rear of magnetic field generation section 8. About other structures, due to identical with Fig. 2 and Figure 12, so omitting the explanation of repeating part.
According to the 7th embodiment, the disturbing magnetic field produced by magnetic field generation section 8 forwards exists partially via magnetic 36, thus strong jamming the action of a magnetic field is prevented from stealing in illegal reading device 300, in addition, the disturbing magnetic field at rear exists partially to roller 27a, thus disturbing magnetic field does not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce.
(the 8th embodiment)
Figure 16 represents the 8th embodiment of the present invention. 8th embodiment is combined with the 1st embodiment (Fig. 2) and the 6th embodiment (Figure 14 (a)). That is, it is provided with magnetic 36 in the front of magnetic field generation section 8, and is opposed to be provided with magnetic 40 with magnetic head 29 at the rear of magnetic field generation section 8. About other structures, due to identical with Fig. 2 and Figure 14 (a), so omitting the explanation of repeating part.
According to the 8th embodiment, the disturbing magnetic field produced by magnetic field generation section 8 forwards exists partially via magnetic 36, thus strong jamming the action of a magnetic field is prevented from stealing in illegal reading device 300, in addition, the disturbing magnetic field magnetropism body 40 at rear exists partially, thus disturbing magnetic field does not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce.
It addition, as the variation of the 8th embodiment, additionally it is possible to carry out the combination of Fig. 2 and Figure 14 (b).
(the 9th embodiment)
Figure 17 represents the 9th embodiment of the present invention. 9th embodiment is combined with the 2nd embodiment or the 3rd embodiment (being all Fig. 6) and the 5th embodiment (Figure 12). That is, it is provided with loop aerial 37 in the front of magnetic field generation section 8, and is opposed to be provided with the roller 27a comprising magnetic with magnetic head 29 at the rear of magnetic field generation section 8. About other structures, due to identical with Fig. 6 and Figure 12, so omitting the explanation of repeating part.
According to the 9th embodiment, the disturbing magnetic field produced by magnetic field generation section 8 phenomenologically forwards exists partially via loop aerial 37, thus strong jamming the action of a magnetic field is prevented from stealing in illegal reading device 300, in addition, the disturbing magnetic field at rear exists partially to roller 27a, thus disturbing magnetic field will not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce.
It addition, as the variation of the 9th embodiment, additionally it is possible to carry out the combination of the 4th embodiment (Figure 10) and the 5th embodiment (Figure 12).
(the 10th embodiment)
Figure 18 represents the 10th embodiment of the present invention. 10th embodiment is combined with the 2nd embodiment or the 3rd embodiment (being all Fig. 6) and the 6th embodiment (Figure 14 (a)). That is, it is provided with loop aerial 37 in the front of magnetic field generation section 8, and is opposed to be provided with magnetic 40 with magnetic head 29 at the rear of magnetic field generation section 8. About other structures, due to identical with Fig. 6 and Figure 14 (a), so omitting the explanation of repeating part.
According to the 10th embodiment, the disturbing magnetic field produced by magnetic field generation section 8 phenomenologically forwards exists partially via loop aerial 37, thus strong jamming the action of a magnetic field is prevented from stealing in illegal reading device 300, in addition, the disturbing magnetic field magnetropism body 40 at rear exists partially, thus disturbing magnetic field will not arrive magnetic head 29, it is possible to avoid the reading performance of data to reduce.
It addition, as the variation of the 10th embodiment, additionally it is possible to carry out the combination of Fig. 6 and Figure 14 (b). Additionally it is possible to carry out the combination of Figure 10 and Figure 14 (a), and the combination of Figure 10 and Figure 14 (b).
(other embodiments)
In the present invention, except with above-mentioned embodiment, additionally it is possible to adopt various embodiment.
Such as, with in above-mentioned each embodiment, magnetic field generation section 8 is constituted by iron core with by the coil of its winding, but the magnetic field generation section 8 in the present invention is not limited to this. Such as, magnetic field generation section 8 can also be made up of loop aerial.
Additionally, in Fig. 2 or Fig. 6, list the magnetic 36 in the front being arranged on magnetic field generation section 8 or loop aerial 37 is installed in the example of panel 200 side but it also may the structure according to card reader, magnetic 36 or loop aerial 37 are arranged on card reader side.
Additionally, in the embodiment arranging loop aerial 37, it is also possible to the frequency f2 of the disturbing magnetic field (secondary disturbing magnetic field) produced by loop aerial 37 is set to the frequency low for frequency f1 of the disturbing magnetic field (disturbing magnetic field) produced than magnetic field generation section 8. Now, frequency-conversion circuit set up by loop aerial 37. If so, then produce to be suitable to the magnetic field of (being difficult to filter) low frequency of interference from loop aerial 37, steal it is possible to be effectively prevented. Additionally, due to produce, from magnetic field generation section 8, the magnetic field that can propagate to remote high frequency, even if so the distance of loop aerial 37 and magnetic field generation section 8, it is also possible to reliably transmit magnetic field from magnetic field generation section 8 to loop aerial 37.
Additionally, in the above description, describe the countermeasure of stealing when inserting card 21, but due to from magnetic field generation section 8 often time produce disturbing magnetic field, so when returning card 21, it is also possible to prevent from stealing.
It addition, produce disturbing magnetic field when being not necessary to normal for the present invention, it is also possible to disturbing magnetic field is arranged period of stopping.
Additionally, in the above description, describe stealing and each countermeasure stolen of magnetic head 34 to magnetic stripe detection the illegal reading device 300 being installed in before panel 200. On the other hand, countermeasure is stolen as the magnetic head 29 that magnetic data is read, for instance, take countermeasures such as the data read by magnetic head 29 are encrypted.
Additionally, in above each embodiment, as magnetic recording media, have the magnetic card of magnetic stripe to carry out for (reverse side) overleaf. But, the present invention can also be applicable to process magnetic stripe or the magnetic recording media reading device at the front-back two-sided magnetic card having magnetic stripe in front.
Additionally, in above each embodiment, illustrate for magnetic card as magnetic recording media. But, the invention is not restricted to magnetic card, additionally it is possible to be applicable to read the device of magnetic recording media as the bankbook with magnetic stripe.
Industrial applicibility
Card reader that the present invention can be generally applicable in device for automatic processing of transactions as ATM to carry or read folding device or the card reader etc. carried in card authentication terminal reads the device of magnetic recording media.
Description of reference numerals
1 card reader
4 card transport parts
8 magnetic field generation section
9 magnetic field control unit
21 magnetic cards
22 insert ports
27a roller
29 magnetic heads
36 magnetics
37 loop aerials
38 magnetics
40,40a, 40b magnetic
Claims (11)
1. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
The front of described magnetic field generation section is provided with magnetic, and this magnetic does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
From disturbing magnetic field relatively front existence via described magnetic that described magnetic field generation section produces.
2. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
The front of described magnetic field generation section is provided with loop aerial, and this loop aerial does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Based on the disturbing magnetic field produced from described magnetic field generation section, in described loop aerial, produce disturbing magnetic field further by electromagnetic induction, thus interfere with magnetic field and be partial to front existence.
3. magnetic recording media reading device as claimed in claim 2, it is characterised in that
Described loop aerial is inserted with magnetic.
4. magnetic recording media reading device as claimed in claim 2 or claim 3, it is characterised in that
The frequency of disturbing magnetic field produced by described loop aerial is the frequency lower than the frequency of disturbing magnetic field produced by described magnetic field generation section.
5. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
The front of described magnetic field generation section is provided with loop aerial, and this loop aerial does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Based on the disturbing magnetic field produced from described magnetic field generation section, in described loop aerial, produce disturbing magnetic field further by magnetic resonance, thus interfere with magnetic field and be partial to front existence.
6. magnetic recording media reading device as claimed in claim 5, it is characterised in that
Described loop aerial is inserted with magnetic.
7. the magnetic recording media reading device as described in claim 5 or 6, it is characterised in that
The frequency of disturbing magnetic field produced by described loop aerial is the frequency lower than the frequency of disturbing magnetic field produced by described magnetic field generation section.
8. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
The rear of described magnetic field generation section is provided with magnetic, and this magnetic does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Described magnetic is configured near described magnetic head,
Described magnetic is a part for the roller being opposed to setting with described magnetic head.
9. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
The rear of described magnetic field generation section is provided with magnetic, and this magnetic does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Described magnetic is configured near described magnetic head,
Described magnetic is opposed with described magnetic head, is configured in one side or the both sides of this magnetic head.
10. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
This magnetic recording media reading device is provided with magnetic, and this magnetic does not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Described magnetic is arranged on front and the rear of described magnetic field generation section.
11. a magnetic recording media reading device, possess:
Insert port, inserts for magnetic recording media;
Transmission mechanism, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, reads data from the magnetic recording media transmitted by described transmission mechanism; And
Magnetic field generation section, is arranged near described insert port, produces disturbing magnetic field, and the data that the illegal reading device by installing in the front of this insert port is read described magnetic recording media by this disturbing magnetic field are disturbed;
Described magnetic recording media reading device is characterised by,
This magnetic recording media reading device is provided with magnetic and loop aerial, and this magnetic and loop aerial do not arrive described magnetic head for making the disturbing magnetic field bias produced from described magnetic field generation section exist,
Described loop aerial is arranged on the front of described magnetic field generation section,
Described magnetic is arranged on the rear of described magnetic field generation section.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/004826 WO2013030876A1 (en) | 2011-08-30 | 2011-08-30 | Device for reading magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103733232A CN103733232A (en) | 2014-04-16 |
| CN103733232B true CN103733232B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180072818.9A Expired - Fee Related CN103733232B (en) | 2011-08-30 | 2011-08-30 | Magnetic recording media reading device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5695204B2 (en) |
| CN (1) | CN103733232B (en) |
| WO (1) | WO2013030876A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6492984B2 (en) * | 2015-06-03 | 2019-04-03 | 沖電気工業株式会社 | Automatic transaction equipment |
| CN105929276B (en) * | 2016-05-09 | 2019-01-01 | 广州广电运通金融电子股份有限公司 | A kind of detection method and equipment of anti-side record electromagnetic interference |
| JP7085814B2 (en) * | 2017-08-31 | 2022-06-17 | 日本電産サンキョー株式会社 | Card reader |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185877A (en) * | 1996-12-25 | 1998-07-14 | Sumitomo Metal Ind Ltd | Apparatus and method for probe rotation-type flaw detection |
| JP3294231B2 (en) * | 1999-03-15 | 2002-06-24 | 株式会社東芝 | Magnetic recording device and magnetic recording method |
| JP3936496B2 (en) * | 1999-08-31 | 2007-06-27 | 日本電産サンキョー株式会社 | Magnetic card transaction device |
| US7090130B2 (en) * | 2001-10-09 | 2006-08-15 | Mag-Tek, Inc. | Method and apparatus for generating images of magnetic fields in at least two dimensions |
| JP4425674B2 (en) * | 2004-03-17 | 2010-03-03 | 日立オムロンターミナルソリューションズ株式会社 | Magnetic card reader |
| JP4525242B2 (en) * | 2004-08-23 | 2010-08-18 | 富士ゼロックス株式会社 | Medium provided with magnetic substance and magnetic substance detection device |
| 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 |
| JP2011109762A (en) * | 2009-11-16 | 2011-06-02 | Honda Motor Co Ltd | Unipolar motor |
-
2011
- 2011-08-30 JP JP2013530867A patent/JP5695204B2/en active Active
- 2011-08-30 WO PCT/JP2011/004826 patent/WO2013030876A1/en active Application Filing
- 2011-08-30 CN CN201180072818.9A patent/CN103733232B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013030876A1 (en) | 2013-03-07 |
| CN103733232A (en) | 2014-04-16 |
| JP5695204B2 (en) | 2015-04-01 |
| JPWO2013030876A1 (en) | 2015-03-23 |
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