CN103733232A - Device for reading magnetic recording medium - Google Patents
Device for reading magnetic recording medium Download PDFInfo
- Publication number
- CN103733232A CN103733232A CN201180072818.9A CN201180072818A CN103733232A CN 103733232 A CN103733232 A CN 103733232A CN 201180072818 A CN201180072818 A CN 201180072818A CN 103733232 A CN103733232 A CN 103733232A
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- China
- Prior art keywords
- magnetic field
- magnetic
- generating unit
- disturbing
- field generating
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- 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.)
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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
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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
This card reader (1) is provided with: an insertion opening (22) to which a magnetic card (21) is inserted; a conveyance means (25-28) that conveys the magnetic card (21) inserted from the insertion opening (22); a magnetic head (29) that reads data from the conveyed magnetic card (21); and a magnetic field generating unit (8) provided to the vicinity of the insertion opening (22). A magnetic body (36) is provided anteriorly to the magnetic field generating unit (8), and by means of the interfering magnetic field generated from the magnetic field generating unit (8) being biased anteriorly via the magnetic body (36), a strong interfering magnetic field acts on illicit reading devices (300) attached to the front surface of a panel (200). Meanwhile, a magnetic body is not provided posteriorly to the magnetic field generating unit (8), and so an interfering magnetic field does not extend posteriorly and the magnetic head (29) can read data from the magnetic card (21) without being affected by the interfering magnetic field.
Description
Technical field
The present invention relates to, for reading in the device of the data that magnetic recording media records, especially relate to the magnetic recording media reading device of the function illegally obtaining with the data of preventing.
Background technology
At ATM(Automated Teller Machine: Possum, automatic teller machine) or CD(Cash Dispenser: cash dispenser) etc. in traction processing apparatus, carried for reading the card reader of magnetic card.In such traction processing apparatus, recently, produced the crime of stealing (skimming) that is called as that illegally obtains the data that record in the magnetic stripe of card when magnetic card is inserted into card reader.
As the example of typically stealing, there is following methods: the illegal reading device that possesses magnetic head is arranged on the card reader that ATM or CD possess card insert opening near, by the magnetic head of this illegal reading device, illegally obtain the data of the magnetic card that is inserted into card reader.
For above-mentioned stealing, various countermeasures have been proposed up to now.For example, after in the patent documentation 1 chatted, recorded near the card reader that is provided with disturbing magnetic field generator card insert opening.In this card reader, by disturbing magnetic field generator, at the exterior lateral area generation disturbing magnetic field of card insert opening.Therefore,, even illegal reading device has been installed in the outside of card insert opening, be also the interfered impact in magnetic field of the data that read by this device, becomes the data different from the former data of record in card.The data that thus, can prevent card are illegally obtained.
In addition, after in the patent documentation 2 chatted, the surrounding having recorded at card insert opening has set the card reader for generation of the tours antenna of disturbing magnetic field.The antenna surface of tours antenna is parallel above with card insert opening.In this card reader, also the exterior lateral area at card insert opening produces disturbing magnetic field, so even illegal reading device has been installed in the outside of card insert opening, also can prevent that the data of card from illegally being obtained.
Figure 19 represents to possess an example of the card reader of disturbing magnetic field generator.At the casing 100 of card reader 1, be provided with card insert opening unit 24 above.On card insert opening unit 24, form the insert port 22 of inserting for magnetic card 21.Near insert port 22, be provided with disturbing magnetic field generator 35.In the inside of casing 100, be provided with the magnetic head 29 of the data that read magnetic card 21.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 above that is installed in panel 200, stops the magnetic card 21 from inserting along A direction illegally to obtain data.
Prior art document
Patent documentation
Patent documentation 1: JP 2001-67524 communique
Patent documentation 2: specially permit No. 4425674 communique
The summary of invention
The problem that invention will solve
In the card reader 1 shown in Figure 19, there is following problem: in order to prevent reliably stealing in illegal reading device 300, make the intensity of disturbing magnetic field stronger, the intensity in the magnetic field producing at the rear side of disturbing magnetic field generator 35 is grow also, so disturbing magnetic field arrives the magnetic head 29 in casing 100, thereby the reading performance of data reduces.
Summary of the invention
Therefore, the object of the invention is to, a kind of magnetic recording media reading device is provided, this magnetic recording media reading device makes strong jamming magnetic fields in illegal reading device, and disturbing magnetic field do not arrive magnetic head, thereby the reading performance of data is not reduced.
For solving the means of problem
Magnetic recording media reading device involved in the present invention possesses: insert port, for magnetic recording media, insert; Transport sector, the magnetic recording media that transmission is inserted from this insert port; Magnetic head, from the magnetic recording media reading out data transmitting by this transport sector; And magnetic field generating unit, be arranged near insert port, produce for disturbing the illegal reading device of installing by the place ahead in this insert port to read the disturbing magnetic field of the data of magnetic recording media, in addition be provided with for making the disturbing magnetic field producing from magnetic field generating unit partially not arrive magnetic or the tours antenna of magnetic head at (bias, skewness).
By such formation, the disturbing magnetic field producing from magnetic field generating unit exists partially due to the effect of magnetic or tours antenna, so disturbing magnetic field does not arrive magnetic head.Therefore, in magnetic head, do not read the data of magnetic recording media disturbed influence of magnetic field, thereby avoid the reading performance of data to reduce.
In the present invention, also can magnetic be set in the place ahead of magnetic field generating unit, the disturbing magnetic field producing from magnetic field generating unit forwards exists partially via magnetic.
In the present invention, also can tours antenna be set in the place ahead of magnetic field generating unit, the disturbing magnetic field based on producing from magnetic field generating unit, further produce disturbing magnetic field, thereby disturbing magnetic field forwards exists partially by electromagnetic induction in tours antenna.
In the present invention, also can tours antenna be set in the place ahead of magnetic field generating unit, the disturbing magnetic field based on producing from magnetic field generating unit, further produce disturbing magnetic field, thereby disturbing magnetic field forwards exists partially by magnetic resonance in tours antenna.
In the present invention, also can in tours antenna, be inserted with magnetic.
The frequency of the disturbing magnetic field that in the present invention, tours antenna produces can be also than the low frequency of frequency of the disturbing magnetic field of magnetic field generating unit generation.
In the present invention, also can magnetic be set at the rear of magnetic field generating unit, this magnetic be configured in magnetic head near.Now, magnetic also can form a part for the roller arranging opposed to each other with magnetic head.In addition, magnetic also can be opposed with magnetic head, is configured in the one-sided or both sides of this magnetic head.
In the present invention, magnetic is arranged on the place ahead and the rear of magnetic field generating unit.
In the present invention, tours antenna is arranged on the place ahead of magnetic field generating unit, and magnetic is arranged on the rear of magnetic field generating unit.
Invention effect
According to the present invention, can provide a kind of magnetic recording media reading device, even in the situation that making strong jamming magnetic fields in illegal reading device, because disturbing magnetic field does not arrive magnetic head, so the reading performance of data does not reduce.
Accompanying drawing explanation
Fig. 1 means the block diagram of the electric structure of the card reader that embodiments of the present invention are related.
Fig. 2 is side cut away view and the front view of the card reader of the 1st embodiment.
Fig. 3 is the vertical view of magnetic card.
Fig. 4 means the figure of the distribution of the disturbing magnetic field in the 1st embodiment.
Fig. 5 is for the oscillogram of the detection of magnetic stripe is described.
Fig. 6 is the side cut away view of the card reader of the 2nd embodiment.
Fig. 7 means the figure of the distribution of the disturbing magnetic field in the 2nd embodiment.
Fig. 8 means the figure of the distribution of the disturbing magnetic field in the 3rd embodiment.
Fig. 9 is for the circuit diagram of magnetic resonance is described.
Figure 10 is the side cut away view of the card reader of the 4th embodiment.
Figure 11 means the figure of the distribution of the disturbing magnetic field in the 4th embodiment.
Figure 12 is the side cut away view of card reader and the side cut away view of roller of the 5th embodiment.
Figure 13 means the figure of the distribution of the disturbing magnetic field in the 5th embodiment.
Figure 14 means 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.
Figure 19 is the side cut away view of card reader in the past.
Embodiment
Below, with reference to the accompanying drawings of embodiments of the present invention.In each figure, 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 shown in Figure 1, the card reader 1 of present embodiment possesses: control part 2, consists of the CPU of the action of control device integral body; Magnetic information reading part 3, reads in the magnetic data recording in magnetic card; Card transport part 4, transmission magnetic card; Card detecting sensor 5, detects magnetic card; Storer 6, the magnetic data that storage is read by magnetic information reading part 3; Host interface 7, as for example, connecting portion with upper stage arrangement (ATM); Magnetic stripe test section 10, the magnetic stripe of detection magnetic card; And magnetic field generating unit 8, produce for disturbing the disturbing magnetic field reading of the data that record at magnetic stripe.
Control part 2 comprises: magnetic field control part 9, controlling magnetic field generating unit 8; And card transmission control part 12, control card transport part 4.Magnetic stripe test section 10 and magnetic field generating unit 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, at the casing 100 of card reader 1, be provided with card insert opening unit 24 above.On card insert opening unit 24, form the insert port 22 of inserting for magnetic card (being designated hereinafter simply as " card ") 21.Card 21 as shown in Figure 3, has magnetic stripe 21a.Fig. 3 sees the figure of card 21 from the back side.Near insert port 22, be provided with: card inserts detecting sensor 23, detect the card 21 being inserted into; Magnetic head 34, the magnetic stripe 21a of test card 21; And magnetic field generating unit 8, produce disturbing magnetic field.
Magnetic field generating unit 8 for example forms by iron core with by the coil of its winding.From Fig. 2 (b), magnetic field generating unit 8, towards insert port 22, is arranged on magnetic head 34 sides that magnetic stripe detects use.
Inside at the casing 100 of card reader 1, is provided with delivery roll 25～28, card position detecting 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 via transport tape (omitting diagram) and motor (omitting diagram).Among 1 pair of delivery roll, a side is for transmitting the driven roller of the revolving force of motor, and the opposing party is driven in the driven voller that this driven roller rotates.Delivery roll 25～28, with together with above-mentioned transport tape and motor, forms card transport part 4(Fig. 1).Card transport part 4 is examples of " transport sector " in the present invention.
Card position detecting sensor 30～33rd, the optical sensor of infiltration type, has respectively across transmission path P and opposed illuminating part and light accepting part.The configuration space of these sensors 30～33 is shorter than the length of the transmission direction of magnetic card 21.Sensor 30 detects from the situation of retaining wedge 21 on the nearest delivery roll 25 of insert port 22.Sensor 33 detects the situation that the card 21 being inserted into arrives the storage part (omitting diagram) of temporarily depositing card.The position of the card 21 in sensor 31,32 detected transmission.Together with these card position detecting sensors 30～33 are inserted detecting sensor 23 with described card, form card detecting sensor 5(Fig. 1).
Then, as shown in Figure 2 (a) shows, illustrate in the situation that the countermeasure of stealing that the illegal reading device 300 that comprises magnetic head has been installed above of panel 200.
If based on magnetic field control part 9(Fig. 1) control, in magnetic field generating unit 8, flow through drive current, magnetic field generating unit 8 produces disturbing magnetic fields.In the present embodiment, the Continuous-flow electric current of overdriving in magnetic field generating unit 8, thus when magnetic field generating unit 8 is normal, produce disturbing magnetic field.The disturbing magnetic field being produced by magnetic field generating unit 8, as shown in the dotted line of Fig. 4, is imported into the magnetic 36 that becomes a kind of waveguide road, and forwards (directions X) extends, and acts on illegal reading device 300.Therefore, the be interfered impact in magnetic field of the data that read by illegal reading device 300, becomes the data different from the former data of record in card 21.The data that thus, can prevent card 21 are illegally obtained.
On the other hand, the disturbing magnetic field being produced by magnetic field generating unit 8 is also present in the rear (Y-direction) of magnetic field generating unit 8.But, because the rear in magnetic field generating unit 8 does not arrange magnetic, so disturbing magnetic field can rearward not extend via magnetic.Therefore, disturbing magnetic field can not arrive the magnetic head 29 that magnetic data reads use, thereby magnetic head 29 can not disturbed influence of magnetic field and read the data of card 21.
Like this, in the 1st embodiment, by the place ahead in magnetic field generating unit 8, magnetic 36 is set, the disturbing magnetic field being produced by magnetic field generating unit 8 forwards exists partially via magnetic 36.Its result, a little less than the intensity of disturbing magnetic field becomes Qiang Er rear, the place ahead.Thereby, make strong jamming magnetic fields in the illegal reading device 300 above that is installed in panel 200, thereby can prevent from reliably stealing, in addition, disturbing magnetic field does not arrive the magnetic head 29 in card reader 1, thereby can avoid the reading performance of data to reduce.
In addition the disturbing magnetic field being produced by magnetic field generating unit 8, also acts on the magnetic head 34 that magnetic stripe detects use.Therefore, even illegal reading device is connected to magnetic head 34 via lead-in wire in the situation that, also can prevent that data from illegally being obtained.In addition, even if act on magnetic head 34 when disturbing magnetic field is normal, because magnetic head 34 does not need to reproduce magnetic data itself, so for example can utilize the pattern difference at the front and back detection signal of the detection of magnetic stripe 21a to detect magnetic stripe 21a.This situation describes with Fig. 5.
Fig. 5 (a) is the waveform of the drive current that flows through in magnetic field generating unit 8.From magnetic field generating unit 8, produce and the corresponding disturbing magnetic field of this drive current.Fig. 5 (b) is in the situation that not there is not disturbing magnetic field, the waveform of the detection signal of exporting from magnetic head 34.Fig. 5 (c) is in the situation that there is disturbing magnetic field, and the waveform of the detection signal of exporting from magnetic head 34, becomes the waveform that has synthesized Fig. 5 (a) and Fig. 5 (b).From Fig. 5 (c), in the front and back that the moment t of magnetic stripe detected, the pattern of detection signal is different.Thereby, according to the variation of this pattern, can detect magnetic stripe.
(the 2nd embodiment)
Then, the 2nd embodiment of the present invention is described.In addition, about the electric structure of the card reader in the 2nd embodiment, due to identical with Fig. 1, so description thereof is omitted.
Fig. 6 represents the card reader of the 2nd embodiment.In the 1st described embodiment (Fig. 2), in the place ahead of magnetic field generating unit 8, be provided with magnetic 36.On the other hand, in the 2nd embodiment, in the place ahead of magnetic field generating unit 8, be provided with tours antenna 37.This tours antenna 37 is also identical with magnetic 36, is arranged on the support component (omitting diagram) being arranged on panel 200.By card reader 1 and tours antenna 37, form magnetic recording media reading device of the present invention.About other structures, due to identical with Fig. 2, so omit the explanation of repeating part.
When normal from magnetic field generating unit 8, produce disturbing magnetic field.In the present embodiment, the disturbing magnetic field (disturbing magnetic field) being produced by magnetic field generating unit 8 is as shown in the dotted line of Fig. 7, with tours antenna 37 interlinkages.Therefore,, in tours antenna 37, by electromagnetic induction, produce the disturbing magnetic field (secondary disturbing magnetic field) as shown in dot-and-dash line.And 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 that 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.The data that thus, can prevent card 21 are illegally obtained.
On the other hand, the disturbing magnetic field being produced by magnetic field generating unit 8 is also present in the rear (Y-direction) of magnetic field generating unit 8.But because the rear in magnetic field generating unit 8 does not arrange magnetic or tours antenna, one time disturbing magnetic field can rearward not extend.Therefore, one time disturbing magnetic field can not arrive the magnetic head 29 that magnetic data reads use, thereby magnetic head 29 can not read the data of card 21 by a disturbing magnetic field impact.In addition, about a disturbing magnetic field, magnetic stripe is detected to the impact of the magnetic head 34 of use, identical with the situation of the 1st embodiment.
Like this, in the 2nd embodiment, in the place ahead of magnetic field generating unit 8, tours antenna 37 is set, a disturbing magnetic field based on being produced by magnetic field generating unit 8, the secondary disturbing magnetic field producing based on electromagnetic induction by tours antenna 37.Its result, one time disturbing magnetic field forwards partially exists via tours antenna 37 in performance." partially at (skewness) " of the present invention, also comprise in such performance partially at (skewness).Its result, a little less than the intensity of disturbing magnetic field becomes Qiang Er rear, the place ahead.Thereby, make strong jamming magnetic fields in the illegal reading device 300 above that is installed in panel 200, thereby can prevent from reliably stealing, in addition, disturbing magnetic field can not arrive the magnetic head 29 in card reader 1, thereby can avoid the reading performance of data to reduce.
(the 3rd embodiment)
Then, the 3rd embodiment of the present invention is described.In addition, about the structure of the card reader in the 3rd embodiment, due to identical with Fig. 1 and Fig. 6, so description thereof is omitted.
In the 3rd embodiment, identical with the 2nd embodiment (Fig. 6), in the place ahead of magnetic field generating unit 8, be provided with tours antenna 37.Wherein, the in the situation that of the 2nd embodiment, by electromagnetic induction, make tours antenna 37 produce secondary disturbing magnetic field, on the other hand, the in the situation that of the 3rd embodiment, by magnetic resonance, make tours antenna 37 produce secondary disturbing magnetic field.
As shown in Figure 9, magnetic resonance is following phenomenon: when having configured two resonant circuits with identical resonant frequency, the vibration in the magnetic field that the resonance of the resonant circuit by a side produces is passed to the opposing party's resonant circuit, the opposing party's resonant circuit resonance 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.When normal from magnetic field generating unit 8, produce a disturbing magnetic field shown in dotted line.In the present embodiment, owing to utilizing magnetic resonance, so a disturbing magnetic field does not need and tours antenna 37 interlinkages.If produce disturbing magnetic field by magnetic field generating unit 8 one time by resonance, tours antenna 37 resonates by magnetic resonance, in tours antenna 37, produces the secondary disturbing magnetic field as shown in dot-and-dash line.And this secondary disturbing magnetic field acts on illegal reading device 300.Therefore, identical with the situation of the 2nd embodiment, can prevent from illegally obtaining by illegal reading device 300 data of card 21.
On the other hand, the disturbing magnetic field being produced by magnetic field generating unit 8 is also present in the rear (Y-direction) of magnetic field generating unit 8.But, due to the rear in magnetic field generating unit 8, magnetic or tours antenna are not set, so a disturbing magnetic field can rearward not extend.Therefore, identical with the situation of the 2nd embodiment, magnetic head 29 can not read the data of card 21 by a disturbing magnetic field impact.In addition, about the impact on a disturbing magnetic field of the magnetic head 34 of magnetic stripe detection use, identical with the situation of the 1st embodiment.
Like this, in the 3rd embodiment, in the place ahead of magnetic field generating unit 8, tours antenna 37 is set, a disturbing magnetic field based on being produced by magnetic field generating unit 8, the secondary disturbing magnetic field producing based on magnetic resonance by tours antenna 37.Its result, one time disturbing magnetic field forwards partially exists via tours antenna 37 in performance.Its result, a little less than the intensity of disturbing magnetic field becomes Qiang Er rear, the place ahead.Thereby, make strong jamming magnetic fields in the illegal reading device 300 above that is installed in panel 200, thereby can prevent from reliably stealing, in addition, disturbing magnetic field can not arrive the magnetic head 29 in card reader 1, thereby can avoid the reading performance of data to reduce.
(the 4th embodiment)
Then, the 4th embodiment of the present invention is described.In addition, about the electric structure of the card reader in the 4th embodiment, due to identical with Fig. 1, so description thereof is omitted.
Figure 10 represents the card reader of the 4th embodiment.In Figure 10, the tours antenna 37 in Fig. 6 is inserted to the magnetic 38 consisting of ferrite or the such high material of magnetoconductivity of iron.About other structures, due to identical with Fig. 6, so omit the explanation of repeating part.
Figure 11 represents the distribution of the disturbing magnetic field in the 4th embodiment.When normal from magnetic field generating unit 8, produce a disturbing magnetic field shown in dotted line.This disturbing magnetic field is fed to the magnetic 38 that becomes a kind of guided wave road, and forwards (directions X) extends, and acts on illegal reading device 300.In addition,, by disturbing magnetic field and tours antenna 37 interlinkages, in tours antenna 37, by electromagnetic induction, produce the secondary disturbing magnetic field shown in dot-and-dash line.And this secondary disturbing magnetic field also acts on illegal reading device 300.The both sides of the disturbing magnetic field therefore, being produced by magnetic field generating unit 8 and the secondary disturbing magnetic field being produced by tours antenna 37 act on illegal reading device 300.Thereby, can more effectively prevent that the data of card 21 from illegally being obtained.
In addition, about a disturbing magnetic field, magnetic data is read to the impact of the magnetic head 29 of use, and disturbing magnetic field detects the impact of the magnetic head 34 of use on magnetic stripe, identical with the situation of the 1st embodiment.
In addition,, at this, take and by electromagnetic induction, produce secondary disturbing magnetic field and illustrate as example, but in the situation that producing secondary disturbing magnetic field by magnetic resonance, the 4th embodiment also can be suitable for.
Like this, in the 4th embodiment, by the place ahead in magnetic field generating unit 8, tours antenna 37 is set and 38, disturbing magnetic fields of magnetic forwards exist partially via magnetic 38, and produces secondary disturbing magnetic field in tours antenna 37.Its result, the both sides of disturbing magnetic field and secondary disturbing magnetic field can act on illegal reading device 300, make stronger disturbing magnetic field act on illegal reading device 300, thereby can prevent from more reliably stealing.In addition, disturbing magnetic field can not arrive the magnetic head 29 in card reader 1, thereby can avoid the reading performance of data to reduce.
(the 5th embodiment)
Then, the 5th embodiment of the present invention is described.In addition, about the electric structure of the card reader in the 5th embodiment, due to identical with Fig. 1, so description thereof is omitted.
Figure 12 (a) represents the card reader of the 5th embodiment.In Figure 12 (a), be provided with opposed to each other for press the roller 27a of card 21 to magnetic head 29 with magnetic head 29.This roller 27a, as shown in Figure 12 (b), consists of core components 27b and the coating member 27c such as rubber that cover its periphery.And core components 27b consists of ferrite or the such high material of magnetoconductivity of iron.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.When normal from magnetic field generating unit 8, produce the disturbing magnetic field shown in dotted line.Because this disturbing magnetic field intensity is strong, so forwards (directions X) extends, act on illegal reading device 300.Therefore, can prevent from illegally being obtained by the data of illegal reading device 300 cards 21.
On the other hand, the disturbing magnetic field being produced by magnetic field generating unit 8 is because intensity is strong, and also rearward (Y-direction) extends.Yet, due to the core components 27b of the opposed roller 27a of magnetic head 29 be magnetic, so the first half of the disturbing magnetic field rearward extending is concentrated on roller 27a, can not arrive magnetic head 29.In addition, the below of the latter half of the disturbing magnetic field rearward extending in magnetic head 29, can not affect magnetic head 29.Therefore, magnetic head 29 can not disturbed influence of magnetic field and is read the data of card 21.
Like this, in the 5th embodiment, owing to being provided with opposed to each other magnetic with magnetic head 29, so be present in disturbing magnetic field (the first half) the magnetropism body at the rear of magnetic field generating unit 8, partially exist.Its result, even make disturbing magnetic field grow in order to prevent from stealing, because disturbing magnetic field can not arrive magnetic head 29, so can avoid the reading performance of data to reduce.
(the 6th embodiment)
Then, the 6th embodiment of the present invention is described.In addition, about the electric structure of the card reader in the 6th embodiment, due to identical with Fig. 1, so description thereof is omitted.
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 and the opposed magnetic 40 of magnetic head 29.This magnetic 40 consists of ferrite or the such high material of magnetoconductivity of iron.
Like this, in the situation that being provided with opposed to each other magnetic 40 with magnetic head 29, the disturbing magnetic field at rear that is present in magnetic field generating unit 8 is shown in dotted line, and also magnetropism body 40 exists partially.Therefore, identical with the 5th embodiment, even make disturbing magnetic field grow in order to prevent from stealing, because disturbing magnetic field can not arrive magnetic head 29, so can avoid the reading performance of data to reduce.
In Figure 14 (a), at the one-sided of magnetic head 29, be provided with magnetic 40, but also can as shown in Figure 14 (b), in the both sides of magnetic head 29, magnetic 40a, 40b be set.In addition,, in Figure 12, the magnetic 40b of Figure 14 (b) also can be set at the downside of magnetic head 29.If like this, can effectively stop by the magnetic 40b of downside the disturbing magnetic field of the latter half in Figure 13 to arrive magnetic head 29.
In addition, in Figure 12 and Figure 14, with the opposed position of magnetic head 29 on be provided with magnetic, but the position of magnetic is not limited only to and the opposed position of magnetic head 29, is near the position of magnetic head 29.
(the 7th embodiment)
Figure 15 represents the 7th embodiment of the present invention.The 7th embodiment has combined the 1st embodiment (Fig. 2) and the 5th embodiment (Figure 12).That is, in the place ahead of magnetic field generating unit 8, be provided with magnetic 36, and be provided with opposed to each other at rear and the magnetic head 29 of magnetic field generating unit 8 the roller 27a that comprises magnetic.About other structures, due to identical with Fig. 2 and Figure 12, so omit the explanation of repeating part.
According to the 7th embodiment, the disturbing magnetic field being produced by magnetic field generating unit 8 forwards exists partially via magnetic 36, thereby strong jamming magnetic fields can prevent from stealing in illegal reading device 300, in addition, the disturbing magnetic field at rear exists partially to roller 27a, thereby disturbing magnetic field does not arrive magnetic head 29, can avoid the reading performance of data to reduce.
(the 8th embodiment)
Figure 16 represents the 8th embodiment of the present invention.The 8th embodiment has combined the 1st embodiment (Fig. 2) and the 6th embodiment (Figure 14 (a)).That is, in the place ahead of magnetic field generating unit 8, be provided with magnetic 36, and be provided with opposed to each other magnetic 40 at rear and the magnetic head 29 of magnetic field generating unit 8.About other structures, due to identical with Fig. 2 and Figure 14 (a), so omit the explanation of repeating part.
According to the 8th embodiment, the disturbing magnetic field being produced by magnetic field generating unit 8 forwards exists partially via magnetic 36, thereby strong jamming magnetic fields can prevent from stealing in illegal reading device 300, in addition, the disturbing magnetic field magnetropism body 40 at rear exists partially, thereby disturbing magnetic field does not arrive magnetic head 29, can avoid the reading performance of data to reduce.
In addition, as the variation of the 8th embodiment, can also carry out the combination of Fig. 2 and Figure 14 (b).
(the 9th embodiment)
Figure 17 represents the 9th embodiment of the present invention.The 9th embodiment has combined the 2nd embodiment or the 3rd embodiment (being all Fig. 6) and the 5th embodiment (Figure 12).That is, in the place ahead of magnetic field generating unit 8, be provided with tours antenna 37, and be provided with opposed to each other at rear and the magnetic head 29 of magnetic field generating unit 8 the roller 27a that comprises magnetic.About other structures, due to identical with Fig. 6 and Figure 12, so omit the explanation of repeating part.
According to the 9th embodiment, the disturbing magnetic field being produced by magnetic field generating unit 8 forwards partially exists via tours antenna 37 in performance, thereby strong jamming magnetic fields can prevent from stealing in illegal reading device 300, in addition, the disturbing magnetic field at rear exists partially to roller 27a, thereby disturbing magnetic field can not arrive magnetic head 29, can avoid the reading performance of data to reduce.
In addition, as the variation of the 9th embodiment, can also 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.The 10th embodiment has combined the 2nd embodiment or the 3rd embodiment (being all Fig. 6) and the 6th embodiment (Figure 14 (a)).That is, in the place ahead of magnetic field generating unit 8, be provided with tours antenna 37, and be provided with opposed to each other magnetic 40 at rear and the magnetic head 29 of magnetic field generating unit 8.About other structures, due to identical with Fig. 6 and Figure 14 (a), so omit the explanation of repeating part.
According to the 10th embodiment, the disturbing magnetic field being produced by magnetic field generating unit 8 forwards partially exists via tours antenna 37 in performance, thereby strong jamming magnetic fields can prevent from stealing in illegal reading device 300, in addition, the disturbing magnetic field magnetropism body 40 at rear exists partially, thereby disturbing magnetic field can not arrive magnetic head 29, can avoid the reading performance of data to reduce.
In addition, as the variation of the 10th embodiment, can also carry out the combination of Fig. 6 and Figure 14 (b).In addition, can also 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 the embodiment with above-mentioned, can also adopt various embodiments.
For example, in each embodiment with above-mentioned, magnetic field generating unit 8 forms by iron core with by the coil of its winding, but magnetic field generating unit 8 in the present invention is not only defined in this.For example, magnetic field generating unit 8 also can consist of tours antenna.
In addition,, in Fig. 2 or Fig. 6, enumerated the magnetic 36 in the place ahead that is arranged on magnetic field generating unit 8 or the example that tours antenna 37 is installed in panel 200 sides, but also can, according to the structure of card reader, magnetic 36 or tours antenna 37 be arranged on to card reader side.
In addition,, in the embodiment of tours antenna 37 is set, the frequency f 2 of the disturbing magnetic field (secondary disturbing magnetic field) that also tours antenna 37 can be produced is made as the low frequency of frequency f 1 of the disturbing magnetic field (disturbing magnetic field) producing than magnetic field generating unit 8.Now, on tours antenna 37, set up frequency-conversion circuit.If like this, from tours antenna 37, produce the magnetic field of (the being difficult to filtering) low frequency that is suitable for disturbing, so can effectively prevent from stealing.In addition, owing to producing the magnetic field that can be transmitted to remote high frequency from magnetic field generating unit 8, so even if the distance of tours antenna 37 and magnetic field generating unit 8 also can transmit magnetic field from magnetic field generating unit 8 to tours antenna 37 reliably.
In addition, in the above description, narrated the countermeasure of stealing in the situation of inserting card 21, but produced disturbing magnetic field when normal from magnetic field generating unit 8, so in the situation that returning card 21, also can prevent from stealing.
In addition, not to produce disturbing magnetic field often time for the present invention, also can arrange between stand-down disturbing magnetic field.
In addition in the above description, narrated being installed in each countermeasure of stealing of stealing and magnetic stripe being detected the magnetic head 34 of use of the illegal reading device 300 above of panel 200.On the other hand, as magnetic data is read use magnetic head 29 steal countermeasure, for example, take data to being read by magnetic head 29 countermeasure such as to be encrypted.
In addition,, in each above embodiment, as magnetic recording media, the magnetic card that (reverse side) have a magnetic stripe of take overleaf carries out as example.But the present invention can also be applicable to process has magnetic stripe or at the front-back two-sided magnetic recording media reading device that has the magnetic card of magnetic stripe in front.
In addition,, in each above embodiment, as magnetic recording media, take magnetic card as example explanation.But, the invention is not restricted to magnetic card, can also be applicable to read the device with the such magnetic recording media of the bankbook of magnetic stripe.
Industrial applicibility
The present invention can generally be applicable to the card reader of carrying in the such device for automatic processing of transactions of ATM or read to roll over device or the card reader of carrying etc. reads the device of magnetic recording media in card authentication terminal.
Description of reference numerals
1 card reader
4 card transport parts
8 magnetic field generating units
9 magnetic field control parts
21 magnetic cards
22 insert ports
27a roller
29 magnetic heads
36 magnetics
37 tours antennas
38 magnetics
40,40a, 40b magnetic
Claims (11)
1. a magnetic recording media reading device, possesses:
Insert port, inserts for magnetic recording media;
Transport sector, the magnetic recording media that transmission is inserted from described insert port;
Magnetic head, from the magnetic recording media reading out data transmitting by described transport sector; And
Magnetic field generating unit, is arranged near described insert port, produces disturbing magnetic field, and the illegal reading device that this disturbing magnetic field is installed the place ahead by this insert port reads the data of described magnetic recording media and disturbs;
Described magnetic recording media reading device is characterised in that,
This magnetic recording media reading device is provided with magnetic or tours antenna, this magnetic or tours antenna for the disturbing magnetic field that makes to produce from described magnetic field generating unit partially and do not arrive described magnetic head.
2. magnetic recording media reading device as claimed in claim 1, is characterized in that,
The place ahead in described magnetic field generating unit is provided with described magnetic,
The disturbing magnetic field producing from described magnetic field generating unit forwards exists partially via described magnetic.
3. magnetic recording media reading device as claimed in claim 1, is characterized in that,
The place ahead in described magnetic field generating unit is provided with described tours antenna,
Disturbing magnetic field based on producing from described magnetic field generating unit further produces disturbing magnetic field in described tours antenna by electromagnetic induction, disturbing magnetic field forwards exists partially thus.
4. magnetic recording media reading device as claimed in claim 1, is characterized in that,
The place ahead in described magnetic field generating unit is provided with described tours antenna,
Disturbing magnetic field based on producing from described magnetic field generating unit further produces disturbing magnetic field in described tours antenna by magnetic resonance, disturbing magnetic field forwards exists partially thus.
5. the magnetic recording media reading device as described in claim 3 or 4, is characterized in that,
In described tours antenna, be inserted with magnetic.
6. the magnetic recording media reading device as described in any one in claim 3 to 5, is characterized in that,
The frequency of the disturbing magnetic field that described tours antenna produces is the low frequency of frequency of the disturbing magnetic field that produces than described magnetic field generating unit.
7. magnetic recording media reading device as claimed in claim 1, is characterized in that,
Rear in described magnetic field generating unit is provided with described magnetic,
Described magnetic be configured in described magnetic head near.
8. magnetic recording media reading device as claimed in claim 7, is characterized in that,
Described magnetic is a part for the roller that arranges opposed to each other with described magnetic head.
9. magnetic recording media reading device as claimed in claim 7, is characterized in that,
Described magnetic and described magnetic head are opposed, are configured in the one-sided or both sides of this magnetic head.
10. magnetic recording media reading device as claimed in claim 1, is characterized in that,
Described magnetic is arranged on the place ahead and the rear of described magnetic field generating unit.
11. magnetic recording media reading devices as claimed in claim 1, is characterized in that,
Described tours antenna is arranged on the place ahead of described magnetic field generating unit,
Described magnetic is arranged on the rear of described magnetic field generating unit.
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 true CN103733232A (en) | 2014-04-16 |
| CN103733232B CN103733232B (en) | 2016-06-01 |
Family
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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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193887A1 (en) * | 2016-05-09 | 2017-11-16 | 广州广电运通金融电子股份有限公司 | Anti-skimming electromagnetic interference detection method and device |
Families Citing this family (2)
| 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 |
| JP7085814B2 (en) * | 2017-08-31 | 2022-06-17 | 日本電産サンキョー株式会社 | Card reader |
Citations (7)
| 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 |
| JP2000331303A (en) * | 1999-03-15 | 2000-11-30 | Toshiba Corp | Magnetic recording device and method for magnetic recording |
| US20030085277A1 (en) * | 2001-10-09 | 2003-05-08 | Deland Robert S. | Method and apparatus for generating images of magnetic fields in at least two dimensions |
| JP2005266999A (en) * | 2004-03-17 | 2005-09-29 | Hitachi Omron Terminal Solutions Corp | Magnetic card reader |
| JP2006059258A (en) * | 2004-08-23 | 2006-03-02 | Fuji Xerox Co Ltd | Medium given magnetic substance and magnetic substance detector |
| CN1983338A (en) * | 2005-12-14 | 2007-06-20 | 日立欧姆龙金融系统有限公司 | Card processor |
| JP2011109762A (en) * | 2009-11-16 | 2011-06-02 | Honda Motor Co Ltd | Unipolar motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2011
- 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
- 2011-08-30 JP JP2013530867A patent/JP5695204B2/en active Active
Patent Citations (7)
| 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 |
| JP2000331303A (en) * | 1999-03-15 | 2000-11-30 | Toshiba Corp | Magnetic recording device and method for magnetic recording |
| US20030085277A1 (en) * | 2001-10-09 | 2003-05-08 | Deland Robert S. | Method and apparatus for generating images of magnetic fields in at least two dimensions |
| JP2005266999A (en) * | 2004-03-17 | 2005-09-29 | Hitachi Omron Terminal Solutions Corp | Magnetic card reader |
| JP2006059258A (en) * | 2004-08-23 | 2006-03-02 | Fuji Xerox Co Ltd | Medium given magnetic substance and magnetic substance detector |
| CN1983338A (en) * | 2005-12-14 | 2007-06-20 | 日立欧姆龙金融系统有限公司 | Card processor |
| JP2011109762A (en) * | 2009-11-16 | 2011-06-02 | Honda Motor Co Ltd | Unipolar motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193887A1 (en) * | 2016-05-09 | 2017-11-16 | 广州广电运通金融电子股份有限公司 | Anti-skimming electromagnetic interference detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013030876A1 (en) | 2013-03-07 |
| JP5695204B2 (en) | 2015-04-01 |
| CN103733232B (en) | 2016-06-01 |
| JPWO2013030876A1 (en) | 2015-03-23 |
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