CN104361307A - Magnetic information reading apparatus - Google Patents

Magnetic information reading apparatus Download PDF

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Publication number
CN104361307A
CN104361307A CN201410557984.3A CN201410557984A CN104361307A CN 104361307 A CN104361307 A CN 104361307A CN 201410557984 A CN201410557984 A CN 201410557984A CN 104361307 A CN104361307 A CN 104361307A
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magnetic
circuit
data
conduit
track
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CN201410557984.3A
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CN104361307B (en
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栗林郁郎
濑川武志
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Nidec Sankyo Corp
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Nidec Sankyo Corp
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Abstract

The magnetic information reading apparatus includes: a magnetic head 3 which can read magnetic data recorded in a magnetic stripe formed in the magnetic information recording medium; and a control circuit 23 for demodulating and decoding the magnetic data read by the magnetic head 3. The magnetic head 3 includes channels 3a, 3b and 3c which can read magnetic data with a plurality of recording densities, and the control circuit 23 includes a plurality of processing circuits 26 and 27 that are connected to one channel 3a (3b, 3c) in parallel and process the magnetic data with the plurality of recording densities per recording density, and an operational circuit 24 to which output sides of the plurality of processing circuits 26 and 27 are connected directly or through a predetermined circuit.

Description

Magnetic information reading device
The divisional application that the application is application number is 201010624745.7, the applying date is on Dec 31st, 2010, denomination of invention is the application for a patent for invention of " magnetic information reading device ".
Technical field
The present invention relates to the magnetic information reading device for reading the magnetic data being recorded in magnetic information recording medium.
Background technology
The record format with the magnetic card of magnetic stripe is specified by international standard or JIS standard (Japanese Industrial Standards).As the magnetic card meeting this standard, circulate extensively in Japan as shown in Figure 4, overleaf two faces of 2a and surperficial 2b be formed with the card 2 of magnetic stripe 2c, 2d.According to JIS standard " JISX6302-2 ", in the magnetic stripe 2c being formed at back side 2a, record the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd these 3 magnetic tracks of magnetic track 2g, in the magnetic stripe 2d being formed at surperficial 2b, record the magnetic data of magnetic track 2h (being designated as the 4th magnetic track 2h below) this 1 magnetic track.In addition, according to above-mentioned JIS standard, the recording density (being more specifically average record density) being recorded in the magnetic data of the first magnetic track 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h is 210bpi, and the recording density (being more specifically average record density) being recorded in the magnetic data of the second magnetic track 2f is 75bpi.
In addition, as shown in Figure 4, if set distance from an end 2j of the short side direction of card 2 to one end of the first magnetic track 2e as L1, distance from an end 2j to the other end of the first magnetic track 2e is L2, distance from an end 2j to one end of the second magnetic track 2f is L3, distance from an end 2j to the other end of the second magnetic track 2f is L4, distance from an end 2j to one end of the 3rd magnetic track 2g is L5, distance from an end 2j to the other end of the 3rd magnetic track 2g is L6, distance from an end 2j to one end of the 4th magnetic track 2h is L7, distance from an end 2j to the other end of the 4th magnetic track 2h is L8, then according to JIS standard, distance L1 ~ L8 is such as set as follows.
L1：5.6(mm)，L2：8.46(mm)，L3：8.97(mm)，L4：11.76(mm)，L5：12.27(mm)，L6：15.32(mm)，L7：6.3(mm)，L8：11.7(mm)
In addition, when such setpoint distance L1 ~ L8, when observing from the thickness direction of card 2, a part of the 4th magnetic track 2h is configured in the position roughly overlapping with the gamut of the second magnetic track 2f.
In the past, as the magnetic card reader that the card 2 being recorded in magnetic stripe 2c to the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd these 3 magnetic tracks of magnetic track 2g reads, there will be a known a kind of magnetic card reader, it is mounted with the magnetic head (such as with reference to patent documentation 1) with 3 conduits abutted respectively with the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.
In the magnetic card reader that this patent documentation 1 discloses, such as demodulation is carried out to magnetic data and the reading circuit of decoding as being used for, be connected to the reading circuit of 210bpi at the conduit abutted with the first magnetic track 2e and the conduit that abuts with the 3rd magnetic track 2g, be connected with the reading circuit of 75bpi at the conduit abutted with the second magnetic track 2f.In addition, use a kind of magnetic card reader with contact, its magnetic head loaded has 1 conduit for reading the magnetic stripe 2d of the magnetic data recording 1 magnetic track.In this magnetic card reader, as the reading circuit for carrying out demodulation, decoding to magnetic data, be connected with the reading circuit of 210bpi at the conduit abutted with magnetic stripe 2d.
Prior art document
Patent documentation 1: Japanese Patent Laid-Open 2000-306211 publication
Summary of the invention
The problem to be solved in the present invention
In recent years, there is variation in the magnetic information recording mediums such as the card commercially circulated, commercially have also appeared the magnetic information recording medium not meeting international standard or JIS standard.Such as, commercially occurred: the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is all the magnetic information recording medium of 210bpi; And the recording density of magnetic data being recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is all the magnetic information recording medium of 75bpi.
But, in the card reader that patent documentation 1 discloses, owing to being connected to the reading circuit of 210bpi at the conduit abutted with the first magnetic track 2e and the conduit that abuts with the 3rd magnetic track 2g, be connected with the reading circuit of 75bpi at the conduit abutted with the second magnetic track 2f, the magnetic data being therefore difficult to depart from the recording density of the magnetic data of each magnetic track the magnetic information recording medium of international standard or JIS standard carries out suitable demodulation, decoding.Therefore, when card reader in the past, in order to carry out demodulation, decoding to the magnetic data of the magnetic information recording medium outside such standard, must change reading circuit, making it as the special card reader of this magnetic information recording medium, the versatility of card reader declines.
In addition, card 2 described above is such, it is the card 2 that the two sides of 2a and surperficial 2b is overleaf formed with magnetic stripe 2c, 2d, when observing from the thickness direction of card 2, the part recording the 4th magnetic track 2h of the magnetic data of 210bpi is configured in the position roughly overlapping with the gamut of the second magnetic track 2f of the magnetic data recording 75bpi, when processing such card 2, in card reader in the past, need the magnetic head of the magnetic head of the magnetic data of the magnetic stripe 2c for reading back side 2a and the magnetic data for the magnetic stripe 2d that reads surperficial 2b.Therefore, card reader can maximize, and the cost of card reader also can improve in addition.
Therefore, the object of the present invention is to provide a kind of magnetic information reading device, it can carry out demodulation, decoding to the magnetic data that the recording density of magnetic data departs from the magnetic information recording medium of international standard or JIS standard, can improve versatility.In addition, the object of the present invention is to provide a kind of magnetic information reading device, demodulation, decoding can be carried out with the magnetic data of fairly simple formation to the surface of magnetic information recording medium and the back side, wherein, this magnetic information recording medium is formed with magnetic stripe with the two sides on surface overleaf, when observing from the thickness direction of magnetic information recording medium, the magnetic track recording the magnetic data of different recording densitys is configured in overlapping position on surface and the back side.
For the method for dealing with problems
In order to solve the problem, the feature of magnetic information reading device of the present invention is, comprising: magnetic head, and the magnetic data that can record the magnetic stripe being formed at magnetic information recording medium reads; And control circuit, for carrying out demodulation, decoding to the magnetic data by head read, magnetic head comprise can read the magnetic data of multiple recording density, the conduit of more than 1, control circuit comprises: multiple treatment circuit, be connected in parallel with 1 conduit, and for processing according to the magnetic data of each recording density to multiple recording density; And counting circuit, directly or be connected via the outgoing side of predetermined circuit with multiple treatment circuit.
In magnetic information reading device of the present invention, magnetic head comprise can read the magnetic data of multiple recording density, the conduit of more than 1, control circuit comprises multiple treatment circuit, multiple treatment circuit and 1 conduit are connected in parallel, and for processing according to the magnetic data of each recording density to multiple recording density.Therefore, in the present invention, even if the recording density of the magnetic data that the magnetic stripe of a certain magnetic information recording medium records, different from the recording density of the magnetic data that the magnetic stripe of other magnetic information recording mediums records, also the magnetic data of this different recording density be can read with 1 of a magnetic head conduit, demodulation, decoding carried out with control circuit.That is, in the present invention, can read the magnetic data of recording density and the magnetic data of the recording density that departs from international standard or JIS standard that meet international standard or JIS standard with 1 conduit, carry out demodulation, decoding with control circuit.Therefore, in magnetic information reading device of the present invention, demodulation, decoding can be carried out to the magnetic data that the recording density of magnetic data departs from the magnetic information recording medium of international standard or JIS standard, can versatility be improved.
In addition, in the present invention, magnetic head comprise can read the magnetic data of multiple recording density, the conduit of more than 1, control circuit comprises multiple treatment circuit, multiple treatment circuit and 1 conduit are connected in parallel, and for processing according to the magnetic data of each recording density to multiple recording density.Therefore, in the present invention, user is by by magnetic information recording medium conversely and carry out predetermined operation, can read by 1 magnetic head these two kinds of data of magnetic data to the magnetic data of the magnetic stripe on the surface of magnetic information recording medium and the magnetic stripe at the back side, demodulation is carried out with control circuit, decoding, wherein, the recording density of the magnetic data that the magnetic track of the magnetic stripe on the surface of magnetic information recording medium records, different from the recording density of the magnetic data that the magnetic track of the magnetic stripe at the back side of magnetic information recording medium records, and when observing from the thickness direction of magnetic information recording medium, these magnetic tracks are configured in overlapping position on surface and the back side.That is, in the present invention, with fairly simple formation, demodulation, decoding can be carried out to these two kinds of data of magnetic data of such magnetic information recording medium, the surperficial magnetic data of magnetic stripe and the magnetic stripe at the back side.
In the present invention, preferably control circuit comprises commutation circuit, this commutation circuit is connected in parallel to multiple treatment circuit at input side, and at outgoing side directly or be connected with counting circuit via predetermined circuit, counting circuit is based on the signal of input, differentiate the recording density of the magnetic data that magnetic stripe records, commutation circuit being switched, making the output signal from the treatment circuit for processing the magnetic data of the recording density determined input to counting circuit.If form like this, even if then the outgoing side of multiple treatment circuit is connected with counting circuit via predetermined circuit, but when demodulation, the decoding of carrying out magnetic data, also only counting circuit can be inputed to by from the output signal be used for the treatment circuit that the magnetic data of the recording density that magnetic stripe records processes.Therefore, the process of counting circuit when demodulation, decoding carried out to magnetic data can be simplified, the processing time of counting circuit when demodulation, decoding carried out to magnetic data can be shortened.
In the present invention, preferably control circuit comprises solution and calls signal generating circuit between commutation circuit and counting circuit, this solution calls signal generating circuit based on the output signal from commutation circuit, generate the solution call signal that rectangle that magnetic data solution calls is wavy, treatment circuit comprises: filtering circuit, removes predetermined frequency component from the output signal of conduit; And differentiating circuit, differential is carried out to the output signal from filtering circuit.If form like this, even if then when control circuit comprises multiple treatment circuit, also signal generating circuit generating solution call signal can be called by common solution.Therefore, can the structure of simplified control circuit.
In the present invention, preferably, in the front of magnetic information recording medium to the magnetic stripe of the direction of insertion of magnetic information reading device, record the synchronous data that magnetic is reversed with some cycles, counting circuit, based on the reading result of the synchronous data at conduit, differentiates the recording density of the magnetic data that magnetic stripe records.If form like this, even if then the outgoing side of multiple treatment circuit is connected with counting circuit via predetermined circuit, but carry out magnetic data valid data part demodulation, decoding time, also only can input to counting circuit by from the output signal be used for the treatment circuit that the magnetic data of the recording density that magnetic stripe records processes.Therefore, the process of counting circuit when demodulation, decoding carried out to the valid data part of magnetic data can be simplified, the processing time of counting circuit when demodulation, decoding carried out to the valid data part of magnetic data can be shortened.In addition, if form like this, then due to when counting circuit differentiates the recording density of the magnetic data that records of magnetic stripe, the reading result of the synchronous data that magnetic can be utilized to reverse with some cycles, therefore easily differentiates the recording density of magnetic data.Thus, the process of counting circuit when differentiating the recording density of magnetic data can be simplified, the processing time of counting circuit when can shorten the recording density differentiating magnetic data.
In the present invention, preferably magnetic information reading device comprises the connecting gear for transmitting magnetic information recording medium, and counting circuit, based on the frequency of the signal of input, differentiates the recording density of the magnetic data that magnetic stripe records.If form like this, if then utilize connecting gear to transmit magnetic information recording medium with approximately constant speed, then can with counting circuit than being easier to and the suitably recording density of magnetic data that records of differentiation magnetic stripe.
In the present invention, also can be, magnetic information reading device comprises the first testing agency and the second testing agency, for detecting the direction of insertion of magnetic information recording medium to magnetic information reading device, the leading section of magnetic information recording medium, first testing agency is in the direction of insertion of magnetic information recording medium, the insert port side of magnetic information recording medium is configured in relative to the second testing agency, counting circuit is based on the signal of input, reversal of magnetism number till the leading section of magnetic information recording medium is detected with the second testing agency from detecting that with the first testing agency the leading section of magnetic information recording medium is played, differentiate the recording density of the magnetic data that magnetic stripe records.In this case, even if magnetic information recording medium does not move with approximately constant speed, also can with counting circuit than being easier to and suitably differentiating the recording density of magnetic data that magnetic stripe records.
In the present invention, preferably for magnetic information reading device, as magnetic head, comprise medium and insert detection head and data demodulates head, this medium inserts detection head and inserts magnetic information reading device for detecting magnetic information recording medium, the magnetic data that data demodulates head is used for recording magnetic stripe reads, demodulation, decoding, the synchronous data that counting circuit reads based on the conduit inserting detection head by medium, the recording density of the magnetic data that differentiation magnetic stripe records.If form like this, then, before reading magnetic data with data demodulates head, can reliably commutation circuit be switched.
In the present invention, preferably control circuit comprises head commutation circuit, this head commutation circuit is connected in parallel to medium at input side and inserts 1 conduit of detection head and 1 conduit of data demodulates head, and is connected in parallel to multiple treatment circuit at outgoing side.If form like this, be then connected in parallel to multiple treatment circuit with 1 conduit inserting detection head at medium and when 1 conduit of data demodulates head is connected in parallel to multiple treatment circuit compared with, can the structure of simplified control circuit.
In the present invention, also can be, treatment circuit comprises: amplifying circuit, amplifies the output signal from conduit; Filtering circuit, removes predetermined frequency component from the output signal of amplifying circuit; Differentiating circuit, carries out differential to the output signal from filtering circuit; And solution calls signal generating circuit, based on the output signal from differentiating circuit, generate the solution call signal that rectangle that magnetic data solution calls is wavy.In this case, signal generating circuit can be called directly or input multiple signal via predetermined circuit to counting circuit from multiple solution simultaneously.Therefore, the processing time of counting circuit when demodulation, decoding carried out to magnetic data or when magnetic data is decoded can be shortened.
In the present invention, such as, control circuit calls between signal generating circuit and counting circuit in multiple solution respectively and comprises demodulating data generative circuit, this demodulating data generative circuit is based on the solution call signal calling signal generating circuit from multiple solution and export respectively, generating solution adjusting data, counting circuit is based on the signal from multiple demodulating data generative circuit input, generating solution code data, and differentiate that the decoded data based on the signal from which the demodulating data generative circuit input in multiple demodulating data generative circuit is effective.In addition, in the present invention, such as, counting circuit also can based on the solution call signal calling signal generating circuit input from multiple solution, generating solution adjusting data and decoded data, and differentiate that the decoded data of signal calling signal generating circuit input based on which solution called in signal generating circuit from multiple solution is effective.
In the present invention, preferably magnetic head comprises the conduit of the magnetic data that at least can read these 2 kinds of recording densitys of 210bpi and 75bpi, and control circuit comprises the treatment circuit of the treatment circuit for the treatment of the magnetic data of 210bpi and the magnetic data for the treatment of 75bpi.Generally speaking the recording density of the magnetic data recorded due to the magnetic information recording medium commercially occurred mostly is 210bpi and 75bpi, if therefore form like this, then can simplify the structure of magnetic head and control circuit, improves the versatility of magnetic information reading device.In addition, if form like this, then can read by 1 magnetic head these two kinds of data of magnetic data to magnetic information recording medium, the surperficial magnetic data of magnetic stripe and the magnetic stripe at the back side, demodulation, decoding is carried out with control circuit, wherein, this magnetic information recording medium is in the magnetic data of the track recording 210bpi of the magnetic stripe on the surface of magnetic information recording medium, the magnetic data of the track recording 75bpi of the magnetic stripe at the back side of magnetic information recording medium, and when observing from the thickness direction of magnetic information recording medium, these magnetic tracks are configured in overlapping position on surface and the back side.
In the present invention, as conduit, magnetic head such as comprises the second conduit of the magnetic data that can read these 2 kinds of recording densitys of 210bpi and 75bpi, and comprise the first conduit and the 3rd conduit of the magnetic data that can read 210bpi, first conduit, the second conduit and the 3rd conduit with the direction of insertion approximately perpendicular direction of magnetic information recording medium to magnetic information reading device, be arranged in order with this.
In the present invention, such as, magnetic stripe is formed with respectively on the surface of magnetic information recording medium and the back side, magnetic stripe is formed along with magnetic information recording medium to the long side direction of the approximately parallel magnetic information recording medium of direction of insertion of magnetic information reading device, the first magnetic track is had in the magnetic stripe recording at the back side being formed at magnetic information recording medium, the magnetic data of the second magnetic track and the 3rd these 3 magnetic tracks of magnetic track, first magnetic track, second magnetic track and the 3rd magnetic track are arranged in order from an end side of the short side direction with the approximately perpendicular magnetic information recording medium of the long side direction of magnetic information recording medium with this, the magnetic data of 210bpi is had at the first track recording, the magnetic data of 75bpi is had at the second track recording, the magnetic data of 210bpi is had at the 3rd track recording, the magnetic data of 1 magnetic track of the 4th magnetic track is had in the magnetic stripe recording on the surface being formed at magnetic information recording medium, the magnetic data of 210bpi is had at the 4th track recording, when observing from the thickness direction of magnetic information recording medium, 4th magnetic track overlapping with the second magnetic track at least partially.
In the present invention, magnetic information reading device such as comprises image fetching unit, and this image fetching unit is opposed with magnetic head and configure, and obtains the image of magnetic information recording medium.In the present invention, due to can with 1 magnetic head to magnetic information recording medium, the magnetic data of magnetic stripe on surface and these two kinds of data of magnetic data of the magnetic stripe at the back side read, demodulation is carried out with control circuit, decoding, wherein, the recording density of the magnetic data of the track recording of the magnetic stripe on the surface at magnetic information recording medium of magnetic information recording medium, different from the recording density of the magnetic data of the track recording of the magnetic stripe at the back side at magnetic information recording medium, and when observing from the thickness direction of magnetic information recording medium, these magnetic tracks are configured in overlapping position on surface and the back side, therefore, it is possible to ground opposed with magnetic head configuration image reading unit.Thus, in the present invention, if configuration image reading unit, then can read the magnetic data of magnetic information recording medium, and obtain the image of magnetic information recording medium.
The effect of invention
As mentioned above, in magnetic information reading device of the present invention, demodulation, decoding can be carried out to the magnetic data that the recording density of magnetic data departs from the magnetic information recording medium of international standard or JIS standard, can versatility be improved.In addition, in magnetic information reading device of the present invention, demodulation, decoding can be carried out with the magnetic data of fairly simple formation to the surface of magnetic information recording medium and the back side, wherein, this magnetic information recording medium is formed with magnetic stripe with the two sides on surface overleaf, when observing from the thickness direction of magnetic information recording medium, the magnetic track recording the magnetic data of different recording densitys is configured in overlapping position on surface and the back side.
Accompanying drawing explanation
Fig. 1 is the vertical view of the brief configuration for illustration of the magnetic information reading device involved by embodiments of the present invention 1.
Fig. 2 is the side view of the brief configuration of magnetic information reading device for illustration of the E-E direction from Fig. 1.
Fig. 3 is the front view of the brief configuration of magnetic information reading device for illustration of the F-F direction from Fig. 1.
Fig. 4 is the figure of the magnetic information recording medium for illustration of magnetic information reading device process as shown in Figure 1, and (A) is the figure at the back side representing magnetic information recording medium, and (B) is the figure on the surface representing magnetic information recording medium.
Fig. 5 is the block diagram of the brief configuration of control circuit for illustration of the magnetic information reading device shown in Fig. 1.
Fig. 6 is the figure of the waveform for illustration of the solution call signal inputing to the CPU shown in Fig. 5.
Fig. 7 is the block diagram of the brief configuration of control circuit for illustration of the magnetic information reading device involved by embodiments of the present invention 2.
Fig. 8 is the figure of the method for discrimination of recording density for illustration of the magnetic data in the CPU shown in Fig. 7.
Fig. 9 is the stereographic map of the magnetic information reading device involved by embodiments of the present invention 3.
Figure 10 is the figure of the configuration relation for illustration of the magnetic head in the G-G direction from Fig. 9, scanner and liner roll.
Figure 11 is the cut-open view of the magnetic information reading device in the H-H cross section being equivalent to Figure 10.
Figure 12 is the figure for illustration of being crossed the magnetic information recording medium in path and the configuration relation of magnetic head by the cartoon shown in Fig. 9, (A) be figure for illustration of the back side of magnetic information recording medium and the configuration relation of magnetic head, (B) is the figure for illustration of the surface of magnetic information recording medium and the configuration relation of magnetic head.
Figure 13 is the block diagram of the brief configuration of control circuit for illustration of the magnetic information reading device shown in Fig. 9.
Figure 14 is effective process flow diagram judging an example of the flow process controlled of the decoded data represented in the CPU shown in Figure 13.
Label declaration
1,51 card reader (magnetic information reading device)
2 cards (magnetic information recording medium)
The 2a back side
2b surface
2c, 2d magnetic stripe
2j mono-end
3 magnetic heads (data demodulates head)
3a first conduit (conduit)
3b second conduit (conduit)
3c the 3rd conduit (conduit)
4 magnetic heads
5 connecting gears
6 insert ports
9 fore heads (magnetic head, medium insert detection head, the first testing agency)
9a first conduit (conduit)
9b second conduit (conduit)
9c the 3rd conduit (conduit)
10 testing agencies (the first testing agency, the second testing agency)
11 testing agencies (the second testing agency)
23,43,63 control loops
24,64 CPU (counting circuit)
26,72 first treatment circuits (treatment circuit)
27,73 second treatment circuits (treatment circuit)
28 switching circuits
29,68 call signal generation loop is separated
31,33,66,77 filtering circuits
32,34,67,78 differential loops
46 head switching circuits
55 magnetic heads
55a first conduit
55b second conduit (conduit)
55c the 3rd conduit
56 scanners (image fetching unit)
74 second magnetic track demodulating data generative circuits (demodulating data generative circuit)
75 the 4th magnetic track demodulating data generative circuits (demodulating data generative circuit)
76,79 amplifying return circuits
The long side direction of X magnetic information recording medium
The direction of insertion of X1 magnetic information recording medium
The short side direction of Y magnetic information recording medium
The thickness direction of Z magnetic information recording medium
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.
Embodiment 1
(brief configuration of magnetic information reading device)
Fig. 1 is the vertical view of the brief configuration for illustration of the magnetic information reading device 1 involved by embodiments of the present invention 1.Fig. 2 is the side view of the brief configuration of magnetic information reading device 1 for illustration of the E-E direction from Fig. 1.Fig. 3 is the front view of the brief configuration of magnetic information reading device 1 for illustration of the F-F direction from Fig. 1.Fig. 4 is the figure of the magnetic information recording medium 2 for illustration of magnetic information reading device 1 process as shown in Figure 1, and (A) is the figure of the back side 2a representing magnetic information recording medium 2, and (B) is the figure of the surperficial 2b representing magnetic information recording medium 2.
The magnetic information reading device 1 of this embodiment is the card reader to being recorded in magnetic data that namely magnetic information recording medium block 2 and reading, decode to magnetic data.Therefore, below the magnetic information reading device 1 of this embodiment is designated as " card reader 1 ".This card reader 1 as shown in FIG. 1 to 3, comprising: for the magnetic head 3,4 read the magnetic data being recorded in card 2; And for the connecting gear 5 of transfer card 2 in card reader 1.In the inside of card reader 1, as shown in Figure 2, be formed with the card transfer path 7 of linearity, the card 2 inserted from insert port 6 is transmitted.
In addition, card reader 1 comprises: for the gate part 8 of insert port 6 one side closure by card transfer path 7; For inserting the fore head 9 that card reader 1 detects to card 2; And 4 testing agencies 10 ~ 13 for detecting the position of card 2 in card reader 1.Further, card reader 1 comprises: for the IC contact block 14 with IC contact processed the card 2 being fixed with IC chip; And the communication antenna 15 for processing the card 2 being built-in with communication antenna.
In this embodiment, transfer card 2 is carried out along shown X-directions such as Fig. 1.Specifically, insert card 2 to X1 direction and sucked, discharging card 2 to X2 direction.That is, X1 direction is the direction of insertion of card 2.In addition, X-direction is the long side direction of the card 2 inserted in card reader 1.In addition, approximately perpendicular Y-direction is the short side direction of the card 2 inserted in card reader 1 with X-direction.
The card of card 2 to be such as thickness the be vinyl chloride of the rectangle of about 0.7 ~ 0.8mm.Be formed with the magnetic stripe 2c recording magnetic data at the back side 2a of card 2, be formed with the magnetic stripe 2d recording magnetic data at the surperficial 2b of card 2.Magnetic stripe 2c, 2d are formed along the long side direction of card 2.
The magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd these 3 magnetic tracks of magnetic track 2g is recorded at magnetic stripe 2c.First magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, be arranged in order from a 2j side, end of the short side direction of card 2 with this.The magnetic data of the 4th this 1 magnetic track of magnetic track 2h is recorded at magnetic stripe 2d.
At the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h, such as, with the recording mode record magnetic data of F2F.In addition, the scope of the distance L11 predetermined from front end (the X1 direction end) 2k of magnetic stripe 2c in direction of insertion of card 2, becomes the preamble portion 2m recording the synchronous data that magnetic is reversed with some cycles.That is, synchronous position " 0 " is recorded at preamble portion 2m.Equally, the scope of the distance L12 predetermined from front end (the X1 direction end) 2n of magnetic stripe 2d in direction of insertion of card 2, become the preamble portion 2p recording the synchronous data that magnetic is reversed with some cycles, record synchronous position " 0 " at preamble portion 2p.In addition, be provided with preamble portion 2m, 2p specified by JIS standard " JISX6302-2 " at magnetic stripe 2c, 2d, according to this JIS standard, L11 is 7.44 (mm), L12 is 5 (mm).
In this embodiment, the recording density being recorded in the magnetic data of the first magnetic track 2e is 210bpi or 75bpi, the recording density being recorded in the magnetic data of the second magnetic track 2f is 210bpi or 75bpi, the recording density being recorded in the magnetic data of the 3rd magnetic track 2g is 210bpi or 75bpi, and the recording density being recorded in the magnetic data of the 4th magnetic track 2h is 210bpi or 75bpi.That is, according to the card 2 inserting card reader 1, the recording density being recorded in the magnetic data of each magnetic track 2e ~ 2h is different sometimes.Such as, in the card 2 inserting card reader 1, have the card 2 all recording the magnetic data of 210bpi at the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h, also have the card 2 all recording the magnetic data of 75bpi at the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h.
In addition, also IC chip can be fixed at the surperficial 2b of card 2.In addition, also can to the antenna of card 2 built-in communication.In addition, card 2 also can be thickness is PET (polyethylene terephthalate) card of about 0.18 ~ 0.36mm or the paper card etc. of predetermined thickness.
Magnetic head 3 and magnetic head 4 clip card transfer path 7, configure opposite one another.In addition, magnetic head 3 and magnetic head 4 are arranged so that magnetic head 3 abuts with the magnetic stripe 2c of the back side 2a of card 2, and magnetic head 4 abuts with the magnetic stripe 2d of the surperficial 2b of card 2.In addition, magnetic head 3 and magnetic head 4 are configured in the side, close X2 direction of card transfer path 7.
Magnetic head 3 comprises 3 conduits, is the first conduit 3a for reading the magnetic data being recorded in the first magnetic track 2e (with reference to Fig. 5) respectively, for the second conduit 3b (with reference to Fig. 5) of reading the magnetic data being recorded in the second magnetic track 2f and the 3rd conduit 3c (with reference to Fig. 5) for reading the magnetic data being recorded in the 3rd magnetic track 2g.First conduit 3a, the second conduit 3b and the 3rd conduit 3c are arranged in order with this in the Y direction.In addition, the first conduit 3a, the second conduit 3b and the 3rd conduit 3c can read the magnetic data of these 2 kinds of recording densitys of 210bpi and 75bpi.That is, the first conduit 3a, the second conduit 3b of this embodiment and the 3rd conduit 3c are the conduits that can read the magnetic data of multiple recording density.
Magnetic head 4 comprises 1 conduit (not shown), for reading the magnetic data being recorded in the 4th magnetic track 2h.This conduit can read the magnetic data of these 2 kinds of recording densitys of 210bpi and 75bpi.That is, the conduit of the magnetic head 4 of this embodiment is the conduit that can read the magnetic data of multiple recording density.
Connecting gear 5 comprises: abut with card 2 and the transfer roller 17 of transfer card 2; And drive the motor 18 of transfer roller 17.Transfer roller 17 and motor 18 link via predetermined gear train.Configuration transfer roller 17, make its in the Y direction with magnetic head 3,4 adjacent.Motor 18 is provided with to the scrambler 19 of the rotating speed for detecting motor 18.Scrambler 19 is such as made up of the sensor of discoideus slit plate and optical profile type.In this embodiment, block 2 utilizes connecting gear 5 with constant speed transmission in card reader 1.
Gate part 8 is configured in the side, X2 direction of card transfer path 7.Be linked with solenoid 20 with this gate part 8, gate part 8 utilizes the power of solenoid 20, as shown in the solid line of Fig. 3, is opened by card transfer path 7, in addition as shown in the double dot dash line of Fig. 3, is closed by card transfer path 7.
Fore head 9 is configured near insert port 6.In addition, fore head 9 is configured to make it abut with the magnetic stripe 2c of the back side 2a of card 2.In addition, the fore head 9 of this embodiment comprises 1 conduit for detecting with or without magnetic stripe 2c.
Testing agency 10 ~ 13 is such as the end of the sensor of the optical profile type comprising light-emitting component and light receiving element, the long side direction of test card 2.As shown in Figure 1, testing agency 10 is configured in the X2 direction end of card transfer path 7, testing agency 11 is configured in before the magnetic head 3,4 of the direction of insertion of card 2, and testing agency 12 is configured in after the magnetic head 3,4 of the direction of insertion of card 2, and testing agency 13 is configured in the X1 direction end of card transfer path 7.
IC contact block 14 is configured in the side, X1 direction of card transfer path 7.IC contact block 14 and predetermined link mechanism link, and slide and move up and down in X-direction.IC contact block 14, by moving up and down, makes IC contact abut with the IC chip of card 2, in addition, IC contact is left from the IC chip of card 2.Communication antenna 15 is configured in the side, X1 direction of card transfer path 7.
(structure of control circuit)
Fig. 5 is the block diagram of the brief configuration of control circuit 23 for illustration of the magnetic information reading device 1 shown in Fig. 1.Fig. 6 is the figure of the waveform for illustration of the solution call signal inputing to the CPU24 shown in Fig. 5.In addition, in Figure 5, illustrate and control relevant structure to the reading of the magnetic data involved by magnetic head 3.
Card reader 1 comprises control circuit 23, for carrying out demodulation, decoding to the magnetic data read by magnetic head 3,4.As shown in Figure 5, magnetic head 3 is connected with control circuit 23.Specifically, the first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c and control circuit 23 are connected in parallel.In addition, the conduit of magnetic head 4 is also connected with control circuit 23.
Control circuit 23 comprises the CPU24 as counting circuit.In addition, in control circuit 23, as for the circuit that processes of magnetic data read by the first conduit 3a, comprising: amplifying circuit 25, for the magnetic data of 210bpi is processed treatment circuit 26 (being designated as the first treatment circuit 26 below), call signal generating circuit 29 for the treatment circuit 27 (being designated as the second treatment circuit 27 below), commutation circuit 28 and the solution that process the magnetic data of 75bpi.In addition, in control circuit 23, as the circuit for processing the magnetic data read by the second conduit 3b, comprising: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and solution call signal generating circuit 29; As the circuit for processing the magnetic data read by the 3rd conduit 3c, comprising: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and solution call signal generating circuit 29.
Amplifying circuit 25 is connected with the first conduit 3a, the second conduit 3b and the 3rd conduit 3c respectively, amplifies the output signal from the first conduit 3a, the second conduit 3b and the 3rd conduit 3c.
First treatment circuit 26 and the second treatment circuit 27 are connected in parallel with the outgoing side of amplifying circuit 25.Differentiating circuit 32, second treatment circuit 27 of filtering circuit 31 and 210bpi that the first treatment circuit 26 comprises 210bpi comprises the filtering circuit 33 of 75bpi and the differentiating circuit 34 of 75bpi.Filtering circuit 31,33 is connected with the outgoing side of amplifying circuit 25, removes predetermined frequency component from the output signal of amplifying circuit 25.Specifically, filtering circuit 31,33 is so-called low-pass filters, removes the frequency component of more than predetermined frequency.Differentiating circuit 32,34 is connected with filtering circuit 31,33, carries out differential to the output signal from filtering circuit 31,33.
At the input side of commutation circuit 28, be connected in parallel to the first treatment circuit 26 and the second treatment circuit 27.In addition, at the outgoing side of commutation circuit 28, be connected with solution and call signal generating circuit 29.Commutation circuit 28, based on the control signal from CPU24, is connected switches which in the first treatment circuit 26 or the second treatment circuit 27 being called signal generating circuit 29 with solution.That is, commutation circuit 28 realizes any one in the first treatment circuit 26 or the second treatment circuit 27 and solution to call the function that signal generating circuit 29 is connected.In addition, about the changing method of commutation circuit 28 by aftermentioned.
The outgoing side that solution calls signal generating circuit 29 is connected with CPU24.Solution calls signal generating circuit 29 based on the output signal from commutation circuit 28, generates the solution call signal that rectangle that magnetic data solution calls is wavy.Specifically, solution is called signal generating circuit 29 and is generated the wavy solution call signal of rectangle, and the cycle that the wavy solution call signal of this rectangle determines with the recording density of certain transfer rate of the card 2 undertaken by connecting gear 5 and magnetic data changes.
Such as, when the output signal from commutation circuit 28 is the signal based on the magnetic data of 210bpi and all positions of magnetic data are " 0 ", solution calls signal generating circuit 29 as shown in Fig. 6 (A), generates the solution call signal SG1 of certain cycle T 1.In addition, when the output signal from commutation circuit 28 is the signal based on the magnetic data of 75bpi and all positions of magnetic data are " 0 ", solution calls signal generating circuit 29 as shown in Fig. 6 (B), generates the solution call signal SG2 of certain cycle T 2.In addition, cycle T 2 becomes about 2.8 times of cycle T 1.
As mentioned above, in this embodiment, according to the card 2 inserting card reader 1, the recording density being recorded in the magnetic data of each magnetic track of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is different sometimes.Therefore, in this embodiment, CPU24, based on the solution call signal calling signal generating circuit 29 input from solution, differentiates that the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is 210bpi or 75bpi.
Specifically, CPU24, based in the first conduit 3a, the second conduit 3b of magnetic head 3 and the reading result of the 3rd conduit 3c, differentiates the recording density of the magnetic data of the card 2 transmitted by connecting gear 5.In addition, CPU24, based on the reading result of synchronous data being recorded in preamble portion 2m, differentiates the recording density of magnetic data.Further, CPU24, based on the frequency calling the solution call signal that signal generating circuit 29 inputs from solution, differentiates the recording density of magnetic data.In addition, because the position being recorded in the synchronous data of preamble portion 2m is all " 0 ", as mentioned above, the cycle T 2 of separating call signal SG2 is about 2.8 times of the cycle T 1 of separating call signal SG1, therefore CPU24 is based on the frequency calling the solution call signal that signal generating circuit 29 inputs from solution, easily can differentiate the recording density of magnetic data.
In addition, be connected with commutation circuit 28, CPU24 with CPU24 and commutation circuit 28 is switched, make the first treatment circuit 26 for processing the magnetic data of the recording density determined or the second treatment circuit 27 call signal generating circuit 29 with solution and be connected.That is, commutation circuit 28 switches by CPU24, makes when being determined as recording density and being 210bpi, and the first treatment circuit 26 and solution are called signal generating circuit 29 and be connected; When being determined as recording density and being 75bpi, the second treatment circuit 27 and solution are called signal generating circuit 29 and are connected.
In this embodiment, the commutation circuit 28 before magnetic data is read in setting, makes the first treatment circuit 26 and solution call signal generating circuit 29 and is connected.Therefore, when being determined as recording density and being 210bpi, CPU24 is not to the control signal of commutation circuit 28 output switching.On the other hand, when being determined as recording density and being 75bpi, commutation circuit 28, to the control signal of commutation circuit 28 output switching, switches by CPU24, makes the second treatment circuit 27 and solution call signal generating circuit 29 and is connected.
The switching of commutation circuit 28 terminates in the reading of synchrodata.That is, the switching of commutation circuit 28 terminates before the valid data part of magnetic data then after magnetic head 3 reads synchronous data.After the finishing switching of commutation circuit 28, card 2 also continues to transmit to X1 direction, and the valid data part of magnetic head 3 pairs of magnetic data reads.In addition, CPU24, after differentiation recording density, continues, based on the solution call signal calling signal generating circuit 29 input from solution, to carry out demodulation, decoding to the valid data part of magnetic data.
In addition, in control circuit 23, as the circuit that the magnetic data for reading the conduit by magnetic head 4 processes, comprising: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and solution call signal generating circuit 29.The magnetic data read by the conduit of magnetic head 4, same with the magnetic data read by the first conduit 3a, the second conduit 3b and the 3rd conduit 3c, differentiate recording density by CPU24, then carry out demodulation, decoding.
(main efficacy results of the manner)
As described above, in this embodiment, first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c are configured to read these 2 kinds of recording densitys of 210bpi and 75bpi, and the conduit of magnetic head 4 is configured to read these 2 kinds of recording densitys of 210bpi and 75bpi.In addition, in this embodiment, control circuit 23 comprises the second treatment circuit 27 of the first treatment circuit 26 for the treatment of the magnetic data of 210bpi and the magnetic data for the treatment of 75bpi, first treatment circuit 26 and the second treatment circuit 27, via amplifying circuit 25, are connected in parallel respectively with the conduit of the first conduit 3a, the second conduit 3b, the 3rd conduit 3c and magnetic head 4.
Therefore, in this embodiment, the recording density of the magnetic data that each magnetic track 2e ~ 2h no matter blocking 2 records is 210bpi or 75bpi, can read the magnetic data of 210bpi and 75bpi, carry out demodulation, decoding with control circuit 23 with magnetic head 3,4.Namely, in this embodiment, magnetic head 3,4 can be used to process the card 2 of the magnetic data with the recording density meeting international standard or JIS standard and have the card 2 of magnetic data of the recording density departing from international standard or JIS standard, wherein, front a kind of card 2 specifically records the magnetic data of 210bpi at the first magnetic track 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h, and records the magnetic data of 75bpi at the 3rd magnetic track 2f; Rear a kind of card 2 specifically records the magnetic data of 75bpi at the first magnetic track 2e, the 3rd magnetic track 2g and/or the 4th magnetic track 2h, and/or records the magnetic data of 210bpi at the 3rd magnetic track 2f.Therefore, in this embodiment, demodulation, decoding can be carried out to the magnetic data that the recording density of magnetic data departs from the card 2 of international standard or JIS standard, can versatility be improved.
In addition, in this embodiment, because the magnetic data of the general recording density of magnetic data that can record the card 2 that market occurs and the magnetic data of 210bpi and 75bpi carries out demodulation, decoding, the card reader 1 on market can therefore extensively be utilized.
In this embodiment, the solution being configured with generating solution call signal between commutation circuit 28 and CPU24 calls signal generating circuit 29.Therefore, even if when control circuit 23 comprises the first treatment circuit 26 and the second treatment circuit 27, also signal generating circuit 29 generating solution call signal can be called by common solution.Therefore, in this embodiment, can the structure of simplified control circuit 23.
In this embodiment, CPU24 is based on the reading result of synchronous data being recorded in preamble portion 2m, 2p, differentiate the recording density of magnetic data, commutation circuit 28 is switched, makes the first treatment circuit 26 for processing the magnetic data of the recording density determined or the second treatment circuit 27 call signal generating circuit 29 with solution and be connected.Therefore, even if the outgoing side of the first treatment circuit 26 or the second treatment circuit 27 calls signal generating circuit 29 via commutation circuit 28 and solution and is connected with CPU24, but when carrying out demodulation, decoding to the valid data part of magnetic data, also the output signal from the first treatment circuit 26 or the second treatment circuit 27 is only had to input to CPU24, wherein, the first treatment circuit 26 or the second treatment circuit 27 are for processing the magnetic data of the recording density being recorded in magnetic stripe 2c, 2d.Therefore, in this embodiment, the process of CPU24 when demodulation, decoding carried out to magnetic data can be simplified, the processing time of CPU24 when demodulation, decoding carried out to magnetic data can be shortened.
In this embodiment, CPU24, based on the reading result of synchronous data being recorded in preamble portion 2m, 2p, differentiates the recording density of magnetic data.That is, when CPU24 differentiation is recorded in the recording density of the magnetic data of magnetic stripe 2c, 2d, the reading result of the synchronous data utilizing magnetic to reverse with some cycles.Therefore, CPU24 easily differentiates the recording density of magnetic data.Therefore, the process of CPU24 when differentiating the recording density of magnetic data can be simplified, the processing time of CPU24 when can shorten the recording density differentiating magnetic data.
In this embodiment, CPU24, based on the frequency calling the solution call signal that signal generating circuit 29 inputs from solution, differentiates the recording density of magnetic data.As mentioned above, due to about 2.8 times that the cycle T 2 of separating call signal SG2 is the cycle T 1 of separating call signal SG1, therefore in this embodiment, CPU24, can the recording density of easily and suitable differentiation magnetic data based on the frequency of solution call signal called signal generating circuit 29 from solution and input.
(variation of embodiment 1)
In embodiment 1, the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 is configured to read the magnetic data of these 2 kinds of recording densitys of 210bpi and 75bpi, first treatment circuit 26 comprises filtering circuit 33 and the differentiating circuit 34 that the filtering circuit 31 of 210bpi and differentiating circuit 32, second treatment circuit 27 comprise 75bpi.In addition, also can be such as, the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 is configured to read the magnetic data of kind of the recording density of 2 beyond 210bpi and/or 75bpi, first treatment circuit 26 and the second treatment circuit 27 comprise filtering circuit and differentiating circuit, and this filtering circuit and differentiating circuit can process the magnetic data of the recording density that can be read by the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4.In this case, control circuit 23 comprises amplifying circuit, and this amplifying circuit can process the magnetic data of the recording density that can be read by the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4.
In addition, also can be, the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 is configured to read the magnetic data of the recording density of more than 3 kinds, control circuit 23 comprises the treatment circuit of more than 3, for processing the magnetic data of the recording density of more than 3 kinds respectively.Such as, also can be, the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 is configured to read the magnetic data of 3 kinds of recording densitys, and control circuit 23 comprises for respectively to these 3 treatment circuits of the first treatment circuit, the second treatment circuit and the 3rd treatment circuit that the magnetic data of 3 kinds of recording densitys processes.
In embodiment 1, between commutation circuit 28 and CPU24, be configured with solution call signal generating circuit 29.In addition, such as, commutation circuit 28 also directly can be connected with CPU24.In this case, the first treatment circuit 26 and the second treatment circuit 27 comprise solution respectively and call signal generating circuit 29.
In embodiment 1, amplifying circuit 25 is connected with the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 respectively, is connected in parallel to the first treatment circuit 26 and the second treatment circuit 27 at amplifying circuit 25.In addition, also can be such as, first treatment circuit 26 and the second treatment circuit 27 comprise amplifying circuit 25, the conduit of the first conduit 3a, the second conduit 3b of magnetic head 3, the 3rd conduit 3c and magnetic head 4 respectively with the first treatment circuit 26 and the second treatment circuit 27 in parallel and be directly connected.
In embodiment 1, be formed with magnetic stripe 2d at the surperficial 2b of card 2.In addition, such as magnetic stripe 2d can not formed at the surperficial 2b of card 2 yet.In this case, card reader 1 also can not comprise magnetic head 4.In addition, in embodiment 1, record the magnetic data of 3 magnetic tracks at the magnetic stripe 2c of card 2, but the track number being recorded in the magnetic data of magnetic stripe 2c can be less than 2, also can be more than 4.
In embodiment 1, the switching of commutation circuit 28 terminates before the valid data part of magnetic data then after magnetic head 3 reads synchronous data, after the finishing switching of commutation circuit 28, card 2 also continues to transmit to X1 direction, and the valid data part of magnetic head 3 pairs of magnetic data reads.In addition, at the end of such as, before, magnetic head 3 narrower at the posting field of synchronous data reads the valid data part of magnetic data, the switching of commutation circuit 28 does not have, also after can first card 2 being sent to and can reading the position of valid data part of magnetic data temporarily to X2 direction with magnetic head 3, card 2 is transmitted to X1 direction again, reads the valid data part of magnetic data with magnetic head 3.In addition, even if before magnetic head 3 reads the valid data part of magnetic data during the finishing switching of commutation circuit 28, after also can first card 2 being transmitted temporarily to X2 direction, card 2 is transmitted to X1 direction again, reads the valid data part of magnetic data with magnetic head 3.Like this, if after first card 2 being transmitted temporarily to X2 direction, card 2 is transmitted to X1 direction again, read the valid data part of magnetic data with magnetic head 3, then delinquency prevention person wrongly the reading device being used for obtaining magnetic data can be arranged on insert port 6 to obtain so-called robber's card (skimming) of magnetic data.
Embodiment 2
Fig. 7 is the block diagram of the brief configuration of control circuit 43 for illustration of the magnetic information reading device 1 involved by embodiments of the present invention 2.Fig. 8 is the figure of the method for discrimination of recording density for illustration of the magnetic data in the CPU24 shown in Fig. 7.In addition, illustrate in the figure 7 and control relevant structure to the reading of the magnetic data involved by magnetic head 3 and fore head 9.
In embodiment 1, CPU24, based in the first conduit 3a, the second conduit 3b of magnetic head 3 and the reading result of the 3rd conduit 3c, differentiates the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.With it unlike, in embodiment 2, fore head 9 comprises: for the magnetic data being recorded in the first magnetic track 2e is read the first conduit 9a, for the second conduit 9b of reading the magnetic data being recorded in the second magnetic track 2f and these 3 conduits of the 3rd conduit 9c for reading the magnetic data being recorded in the 3rd magnetic track 2g, first conduit 9a, the second conduit 9b of CPU24 based on the portion of being in advance 9 and the reading result of the 3rd conduit 9c, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.
Because this point is embodiment 1 and the main difference point of embodiment 2, therefore below centered by this difference, the structure of the card reader 1 involved by embodiment 2 is described.In addition, in Fig. 7, Fig. 8, same mark is marked for the same structure with embodiment 1.
As mentioned above, fore head 9 comprises these 3 conduits of the first conduit 9a, the second conduit 9b and the 3rd conduit 9c.First conduit 9a, the second conduit 9b and the 3rd conduit 9c are configured to read these 2 kinds of recording densitys of 210bpi and 75bpi.That is, the first conduit 9a, the second conduit 9b of this embodiment and the 3rd conduit 9c are the conduits that can read the magnetic data of multiple recording density.
Control circuit 43 comprises: the amplifying circuit 45 be connected respectively with the first conduit 9a, the second conduit 9b and the 3rd conduit 9c; The head commutation circuit 46 of the amplifying circuit 25 be connected with the first conduit 3a and the amplifying circuit 45 be connected with the first conduit 9a is connected in parallel at input side; The head commutation circuit 46 of the amplifying circuit 25 be connected with the second conduit 3b and the amplifying circuit 45 be connected with the second conduit 9b is connected in parallel at input side; And the head commutation circuit 46 of the amplifying circuit 25 be connected with the 3rd conduit 3c and the amplifying circuit 45 be connected with the 3rd conduit 9c is connected in parallel at input side.The first treatment circuit 26 and the second treatment circuit 27 is connected in parallel at the outgoing side of head commutation circuit 46.In this embodiment, the head commutation circuit 46 before magnetic data is read in setting, and the first conduit 9a of fore head 9, the second conduit 9b and the 3rd conduit 9c are connected with the first treatment circuit 26 and the second treatment circuit 27.
As mentioned above, in this embodiment, first conduit 9a, the second conduit 9b of CPU24 based on the portion of being in advance 9 and the reading result of the 3rd conduit 9c, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.In addition, in this embodiment, identical with embodiment 1, CPU24, based on the reading result of synchronous data being recorded in preamble portion 2m, differentiates the recording density of magnetic data.Herein, fore head 9 is configured near insert port 6.Therefore, when preamble portion 2m is by fore head 9, card 2 is manually inserted in card reader 1 by user, instead of transmitted by connecting gear 5.That is, preamble portion 2m may not be certain by the translational speed of the card 2 during fore head 9.
Therefore, in this embodiment, such as, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with fore head 9 leading section (end, X1 direction) of card 2 is played with testing agency 10, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.Or, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with testing agency 10 leading section of card 2 is played with testing agency 11, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.Or, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with fore head 9 leading section of card 2 is played with testing agency 10; With input to CPU24 solution call signal, both reversal of magnetism numbers till the leading section of card 2 detected from detecting that with testing agency 10 leading section of card 2 is played with testing agency 11, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.
In addition, as shown in Figure 8, due to when recording density is 210bpi, card 2 moves reversal of magnetism number during predetermined distance, become when recording density is 75bpi, card 2 moves reversal of magnetism number during predetermined distance about 2.8 times, therefore CPU24 is based on the reversal of magnetism number calling the solution call signal that signal generating circuit 29 inputs from solution, easily can differentiate the recording density of magnetic data.
In addition, CPU24 is based on the result of the recording density of differentiation magnetic data, same with embodiment 1, commutation circuit 28 is switched, makes the first treatment circuit 26 for processing the magnetic data of the recording density determined or the second treatment circuit 27 call signal generating circuit 29 with solution and be connected.In this embodiment, the switching of commutation circuit 28 terminates before magnetic head 3 reads magnetic data.
Head commutation circuit 46 is connected with CPU24, if the finishing switching of commutation circuit 28, then head commutation circuit 46 switches by CPU24, and the first conduit 3a of magnetic head 3, the second conduit 3b and the 3rd conduit 3c are connected with the first treatment circuit 26 and the second treatment circuit 27.Afterwards, CPU24, based in the first conduit 3a, the second conduit 3b of magnetic head 3 and the reading result of the 3rd conduit 3c, carries out demodulation, decoding to the valid data part of the magnetic data being recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.
As described above, in this embodiment, CPU24 is based on the first conduit 9a, the second conduit 9b of fore head 9 that configure near insert port 6 and the reading result of the 3rd conduit 9c, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, commutation circuit 28 is switched.Therefore, in this embodiment, can reliably commutation circuit 28 be switched before reading magnetic data with magnetic head 3.
In this embodiment, CPU24 moves the reversal of magnetism number of the solution call signal during predetermined distance based on card 2, differentiates the recording density of magnetic data.Therefore, even if card 2 does not move with constant speed, the recording density of the magnetic data being recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g can also suitably be differentiated with CPU24.
In this embodiment, amplifying circuit 25,45 is connected in parallel at the input side of head commutation circuit 46, and the first treatment circuit 26 and the second treatment circuit 27 are connected in parallel at the outgoing side of head commutation circuit 46.Therefore, compared with the situation being connected to the first treatment circuit 26 or the second treatment circuit 27 with the outgoing side at amplifying circuit 25,45, can the structure of simplified control circuit 43.
In addition, in this embodiment, fore head 9 is that the medium inserting card reader 1 for test card 2 inserts detection head, magnetic head 3 be for reading the magnetic data being recorded in magnetic stripe 3c, demodulation, decoding data demodulates head.In addition, in this embodiment, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with fore head 9 leading section of card 2 is played with testing agency 10, when differentiation is recorded in the recording density of the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, fore head 9 is first testing agencies being configured in insert port 6 side relative to testing agency 10, and testing agency 10 is second testing agencies.In addition, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with testing agency 10 leading section of card 2 is played with testing agency 11, when differentiation is recorded in the recording density of the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, testing agency 10 is first testing agencies being configured in insert port 6 side relative to testing agency 11, and testing agency 11 is second testing agencies.
(variation of embodiment 2)
In embodiment 2, amplifying circuit 25,45 is connected in parallel at the input side of head commutation circuit 46, and the first treatment circuit 26 and the second treatment circuit 27 are connected in parallel at the outgoing side of head commutation circuit 46.In addition, such as also the first treatment circuit 26, second treatment circuit 27 can be connected respectively at the outgoing side of amplifying circuit 25,45.
In embodiment 2, CPU24 based on input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with fore head 9 leading section of card 2 is played with testing agency 10; With input to CPU24 solution call signal, reversal of magnetism number till the leading section of card 2 detected from detecting that with testing agency 10 leading section of card 2 is played with testing agency 11, differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.In addition, such as also can when card 2 inserts, with gate part 8, card transfer path 7 is closed, the leading section of card 2 is after encountering gate part 8, gate part 8 is made to avoid being opened by card transfer path 7, and CPU24 based on input to CPU24 solution call signal, to play to the position of encountering gate part 8 from the leading section of card 2 and to detect with testing agency 10 or testing agency 11 and reversal of magnetism number till the leading section of card 2 differentiate the recording density being recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.If form like this, then delinquency prevention person wrongly the reading device being used for obtaining magnetic data can be arranged on insert port 6 to obtain so-called robber's card of magnetic data.
Embodiment 3
(brief configuration of magnetic information reading device)
Fig. 9 is the stereographic map of the magnetic information reading device 51 involved by embodiments of the present invention 3.Figure 10 is the figure of the configuration relation for illustration of the magnetic head 55 in the G-G direction from Fig. 9, scanner 56 and liner roll 57.Figure 11 is the cut-open view of the magnetic information reading device 51 in the H-H cross section being equivalent to Figure 10.Figure 12 is the figure for illustration of the magnetic information recording medium 2 with the configuration relation of magnetic head 55 being crossed path 53 by the cartoon shown in Fig. 9, (A) be figure for illustration of the back side 2a of magnetic information recording medium 2 and the configuration relation of magnetic head 55, (B) is the figure for illustration of the surperficial 2b of magnetic information recording medium 2 and the configuration relation of magnetic head 55.
In addition, in the following description, as shown in Fig. 9 etc., if mutually perpendicular 3 directions are X-direction, Y-direction and Z-direction, X-direction is fore-and-aft direction, and Y-direction is above-below direction, and Z-direction is left and right directions.In addition, if the side, X1 direction of Fig. 9 is " afterwards " side, side, X2 direction is " front " side, side, Y1 direction be " on " side, side, Y2 direction is D score side.
The magnetic information reading device 51 of this embodiment is that user manually operates card 2, device for reading the magnetic data being recorded in card 2, decoding.In addition, the magnetic information reading device 51 of this embodiment is that user manually operates card 2, for obtaining the device of the image on card 2.Specifically, magnetic information reading device 51 is card reader of so-called hand brush formula, moves (making it cross path 53 by cartoon) while make card 2 cross path 53 along the cartoon being formed as channel-shaped, and the magnetic data of card 2 is read and the image obtained on card 2 in limit.Therefore, below the magnetic information reading device 51 of this embodiment is designated as " card reader 51 ".
Card reader 51, as shown in Fig. 9 ~ 11, comprising: the magnetic head 55 that the magnetic data for recording the card 2 being crossed path 53 by cartoon is read; As the character read on card 2 or bar code etc., the scanner 56 obtaining the image fetching unit of the image on card 2; And arranged opposite with scanner 56, that the card 2 being crossed path 53 by cartoon is pressed to scanner 56 liner roll 57.
In this embodiment, form card reader 51, make user limit make card 2 mobile to rear side (i.e. X1 direction) from the front side of card reader 51, while read the magnetic data of card 2, obtain the image on card 2.That is, in this embodiment, X1 direction is the direction of insertion of card 2, and is pass through direction.In addition, in this embodiment, left and right directions is the thickness direction of card 2, and fore-and-aft direction is the long side direction of card 2, and above-below direction is the short side direction of card 2.
As explained in Embodiment 1, the card of card 2 to be such as thickness the be vinyl chloride of the rectangle of about 0.7 ~ 0.8mm, 2a is formed with magnetic stripe 2c overleaf, is formed with magnetic stripe 2d at surperficial 2b.The magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd these 3 magnetic tracks of magnetic track 2g is recorded at magnetic stripe 2c.The magnetic data of the 4th this 1 magnetic track of magnetic track 2h is recorded at magnetic stripe 2d.
At the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h, such as, with the recording mode record magnetic data of F2F.In addition, in this embodiment, the recording density being recorded in the magnetic data of the first magnetic track 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h is 210bpi, and the recording density being recorded in the magnetic data of the second magnetic track 2f is 75bpi.That is, the card 2 inserting card reader 51 is the cards meeting international standard or JIS standard.
In addition, in this embodiment, as shown in figure 12, for an end 2j to the distance L1 of one end of the first magnetic track 2e of the short side direction from card 2, from an end 2j to the distance L2 of the other end of the first magnetic track 2e, from an end 2j to the distance L3 of one end of the second magnetic track 2f, from an end 2j to the distance L4 of the other end of the second magnetic track 2f, from an end 2j to the distance L5 of one end of the 3rd magnetic track 2g, from an end 2j to the distance L6 of the other end of the 3rd magnetic track 2g, from an end 2j to the distance L7 of one end of the 4th magnetic track 2h, from an end 2j to the distance L8 of the other end of the 4th magnetic track 2h, as follows according to JIS standard setting.
L1：5.6(mm)，L2：8.46(mm)，L3：8.97(mm)，L4：11.76(mm)，L5：12.27(mm)，L6：15.32(mm)，L7：6.3(mm)，L8：11.7(mm)
That is, in this embodiment, when observing from the thickness direction of card 2, a part of the 4th magnetic track 2h is configured in the position roughly overlapping with the gamut of the second magnetic track 2f.
In addition, at back side 2a and/or the surperficial 2b of card 2, describe have character or figure, pattern etc.Or, at back side 2a and/or the surperficial 2b of card 2, be printed with bar code etc.In addition, IC chip can be fixed at the surperficial 2b of card 2, also can to the antenna of card 2 built-in communication.
Magnetic head 55 comprises: for the magnetic data being recorded in the first magnetic track 2e is read the first conduit 55a, for the second conduit 55b of reading the magnetic data being recorded in the second magnetic track 2f and the magnetic data that is recorded in the 4th magnetic track 2h and these 3 conduits of the 3rd conduit 55c for reading the magnetic data being recorded in the 3rd magnetic track 2g.Namely, the first conduit 55a and the 3rd conduit 55c is configured to read the magnetic data of 210bpi.In addition, the second conduit 55b is configured to read the magnetic data of these 2 kinds of recording densitys of 210bpi and 75bpi.That is, the second conduit 55b of this embodiment is the conduit that can read the magnetic data of multiple recording density.In addition, the first conduit 55a, the second conduit 55b and the 3rd conduit 55c are arranged in order with this at left and right directions.
Scanner 56 is scanners (imageing sensor) of so-called closing-type.Scanner 56 is opposed with magnetic head 55 and configure at left and right directions.Liner roll 57 is adjacent with magnetic head 55 and configure at above-below direction.
Cartoon crosses path 53 as shown in Figure 10, is formed as the channel-shaped of upper end side opening.In addition, cartoon crosses path 53 as shown in figure 11, throughout the gamut from the front end of card reader 51 to rear end, is formed as linearity.The degree of depth (degree of depth of above-below direction) that cartoon crosses path 53 is more shallow than the width of the short side direction of card 2, and the upper end side being crossed the card 2 in path 53 by cartoon is exposed in the outside of card reader 51.In the magnetic data reading card 2 or when obtaining on card 2 image, user catches the upper end side of the card 2 exposed in the outside of card reader 51, and card 2 is moved side backward, crosses path 53 to make card 2 by cartoon.
In this embodiment, if an end 2j of card 2 is formed by being pressed in the bottom surface 53a that cartoon crosses the lower surface in path 53 by limit, while make the back side 2a of card 2 abut with magnetic head 55, card 2 is moved, then the magnetic data being recorded in magnetic stripe 2c can be read by magnetic head 55.Specifically, the magnetic data being recorded in the first magnetic track 2e is read by the first conduit 55a, and the magnetic data being recorded in the second magnetic track 2f is read by the second conduit 55b, and the magnetic data being recorded in the 3rd magnetic track 2g is read by the 3rd conduit 55c.In addition, if limit by an end 2j of card 2 by the bottom surface 53a being pressed in cartoon and crossing path 53, while make the surperficial 2b of card 2 abut with magnetic head 55, card 2 is moved, then the magnetic data being recorded in magnetic stripe 2d can be read by magnetic head 55.Specifically, the magnetic data being recorded in the 4th magnetic track 2h is read by the second conduit 55b.
Like this, in this embodiment, the bottom surface 53a that cartoon crosses path 53 becomes at the reference field of above-below direction by the aligned in position of the position of magnetic head 55 and magnetic stripe 2c, 2d.In addition, by limit by an end 2j of card 2 by the bottom surface 53a being pressed in cartoon and crossing path 53, while make card 2 move, the character on the card 2 of above-below direction etc. also with the position consistency of scanner 56.
In addition, in this embodiment, as shown in figure 12, for the distance L21 of the bottom surface 53a to one end of the first conduit 55a that cross path 53 from cartoon, from bottom surface 53a to the distance L22 of the other end of the first conduit 55a, from bottom surface 53a to the distance L23 of one end of the second conduit 55b, from bottom surface 53a to the distance L24 of the other end of the second conduit 55b, from bottom surface 53a to the distance L25 of one end of the 3rd conduit 55c, from bottom surface 53a to the distance L26 of the other end of the 3rd conduit 55c, be set as follows respectively.
L21：6.16(mm)，L22：7.56(mm)，L23：9.71(mm)，L24：11.11(mm)，L25：13.01(mm)，L26：14.41(mm)
(structure of control circuit)
Figure 13 is the block diagram of the brief configuration of control circuit 63 for illustration of the magnetic information reading device 51 shown in Fig. 9.Figure 14 is effective process flow diagram judging an example of the flow process controlled of the decoded data represented in the CPU64 shown in Figure 13.In addition, in fig. 13, illustrate and control relevant structure to the reading of the magnetic data involved by magnetic head 55.
Card reader 51 comprises control circuit 63, for carrying out demodulation, decoding to the magnetic data read by magnetic head 55.As shown in figure 13, magnetic head 55 is connected with control circuit 63.Specifically, at control circuit 63, the first conduit 55a, the second conduit 55b of magnetic head 55 and the 3rd conduit 55c are connected in parallel.
Control circuit 63 comprises the CPU64 as counting circuit.In addition, in control circuit 63, as the circuit for processing the magnetic data read by the first conduit 55a, comprising: the amplifying circuit 65 of 210bpi, the filtering circuit 66 of 210bpi, the differentiating circuit 67 of 210bpi, solution call signal generating circuit 68 and the first magnetic track demodulating data generative circuit 69.
In addition, in control circuit 63, as the circuit for processing the magnetic data read by the 3rd conduit 55c, comprising: the amplifying circuit 65 of 210bpi, the filtering circuit 66 of 210bpi, the differentiating circuit 67 of 210bpi, solution call signal generating circuit 68 and the 3rd magnetic track demodulating data generative circuit 70.
And, in control circuit 63, as the circuit for processing the magnetic data read by the second conduit 55b, comprising: for the treatment circuit 72 (being designated as the first treatment circuit 72 below), the treatment circuit 73 (being designated as the second treatment circuit 73 below) for processing the magnetic data of 210bpi, the second magnetic track demodulating data generative circuit 74 and the 4th magnetic track demodulating data generative circuit 75 that process the magnetic data of 75bpi.
First treatment circuit 72 and the second treatment circuit 73 and the second conduit 55b are connected in parallel.First treatment circuit 72 comprises: differentiating circuit 78 and the solution of the amplifying circuit 76 of 75bpi, the filtering circuit 77 of 75bpi, 75bpi call signal generating circuit 68.Second treatment circuit 73 comprises: differentiating circuit 67 and the solution of the amplifying circuit 79 of 210bpi, the filtering circuit 66 of 210bpi, 210bpi call signal generating circuit 68.
Amplifying circuit 65 is connected with the first conduit 55a and the 3rd conduit 55c respectively, amplifies the output signal from the first conduit 55a and the 3rd conduit 55c.Amplifying circuit 76 and amplifying circuit 79 and the second conduit 55b are connected in parallel, and amplify the output signal from the second conduit 55b.
Filtering circuit 66 is connected with the outgoing side of amplifying circuit 65,79, removes predetermined frequency component from the output signal of amplifying circuit 65,79.Filtering circuit 77 is connected with the outgoing side of amplifying circuit 76, removes predetermined frequency component from the output signal of amplifying circuit 76.Specifically, filtering circuit 66,77 is so-called low-pass filters, removes the frequency component of more than predetermined frequency.Differentiating circuit 67,78 is connected with filtering circuit 66,77, carries out differential to the output signal from filtering circuit 66,77.
Solution is called signal generating circuit 68 and is connected with the outgoing side of differentiating circuit 67,78.This solution calls signal generating circuit 68 based on the output signal from differentiating circuit 67,78, generates the solution call signal that rectangle that magnetic data solution calls is wavy.
First magnetic track demodulating data generative circuit 69, second magnetic track demodulating data generative circuit the 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75 are connected with the outgoing side that solution calls signal generating circuit 68.First magnetic track demodulating data generative circuit 69 is based on the solution call signal calling signal generating circuit 68 output from solution, generate the demodulating data corresponding with the magnetic data read by the first conduit 55a, 3rd magnetic track demodulating data generative circuit 70, based on the solution call signal calling signal generating circuit 68 output from solution, generates the demodulating data corresponding with the magnetic data read by the 3rd conduit 55c.In addition, the second magnetic track demodulating data generative circuit 74 and the 4th magnetic track demodulating data generative circuit 75, based on the solution call signal calling signal generating circuit 68 output from solution, generate the demodulating data corresponding with the magnetic data read by the second conduit 55b.
CPU64 is connected with the outgoing side of the first magnetic track demodulating data generative circuit 69, second magnetic track demodulating data generative circuit the 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.CPU64 based on from the first magnetic track demodulating data generative circuit 69, second magnetic track demodulating data generative circuit the 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75 input demodulating data, generating solution code data.
As mentioned above, in this embodiment, if limit by an end 2j of card 2 by the bottom surface 53a being pressed in cartoon and crossing path 53, while make the back side 2a of card 2 abut with magnetic head 55, card 2 is moved, then the magnetic data being recorded in the second magnetic track 2f is read by the second conduit 55b; If while by an end 2j of card 2 by being pressed in bottom surface 53a, while make the surperficial 2b of card 2 abut with magnetic head 55, card 2 is moved, then the magnetic data being recorded in magnetic stripe 2d is read by the second conduit 55b.That is, in this embodiment, any one in the second conduit 55b reading magnetic data of 75bpi or the magnetic data of 210bpi is utilized.
In addition, when the magnetic data of the 75bpi being recorded in the second magnetic track 2f is read by the second conduit 55b, CPU64 can based on the demodulating data from the second magnetic track demodulating data generative circuit 74 input, generate suitable decoded data, but based on the demodulating data from the 4th magnetic track demodulating data generative circuit 75 input, suitable decoded data cannot be generated.On the other hand, when the magnetic data of the 210bpi being recorded in the 4th magnetic track 2h is read by the second conduit 55b, CPU64 can based on the demodulating data from the 4th magnetic track demodulating data generative circuit 75 input, generate suitable decoded data, but based on the demodulating data from the second magnetic track demodulating data generative circuit 74 input, suitable decoded data cannot be generated.
In this embodiment, utilize this point, CPU64 differentiates that the magnetic data read by the second conduit 55b is recorded in the magnetic data of the second magnetic track 2f or is recorded in the magnetic data of the 4th magnetic track 2h.That is, CPU64 differentiates based on the decoded data of signal from the second magnetic track demodulating data generative circuit 74 input be effective or based on the signal from the 4th magnetic track demodulating data generative circuit 75 input decoded data is effective.
Specifically, shown in flow process as shown in figure 14, first CPU64 judges whether to decode (step S1) to the magnetic data of 75bpi.That is, CPU64 is based on the demodulating data from the second magnetic track demodulating data generative circuit 74 input, determines whether to generate suitable decoded data.In step sl, when decoding to the magnetic data of 75bpi, CPU64 differentiates that the decoded data based on the signal from the second magnetic track demodulating data generative circuit 74 input is effective (step S2).That is, CPU64 is determined as the magnetic data read by the second conduit 55b is the magnetic data being recorded in the second magnetic track 2f.
On the other hand, in step sl, when decoding to the magnetic data of 75bpi, CPU64 judges whether to decode (step S3) to the magnetic data of 210bpi.That is, CPU64 is based on the demodulating data from the 4th magnetic track demodulating data generative circuit 75 input, determines whether to generate suitable decoded data.In step s3, when decoding to the magnetic data of 210bpi, CPU64 differentiates that the decoded data based on the signal from the 4th magnetic track demodulating data generative circuit 75 input is effective (step S4).That is, CPU64 is determined as the magnetic data read by the second conduit 55b is the magnetic data being recorded in the 4th magnetic track 2h.
In addition, in step s3, when decoding to the magnetic data of 210bpi, CPU64 is determined as by the magnetic data of the second conduit 55b reading neither be recorded in the magnetic data of the second magnetic track 2f, neither be recorded in the magnetic data of the 4th magnetic track 2h, be invalid (step S5).
In addition, CPU64 is used in step S2 or step S4 and is determined as effective decoded data, carries out predetermined process afterwards.In addition, when the magnetic data read by magnetic head 55 is the magnetic data of magnetic stripe 2c, CPU64 utilizes based on the decoded data of the demodulating data from the first magnetic track demodulating data generative circuit 69 input and the decoded data based on the demodulating data from the 3rd magnetic track demodulating data generative circuit 70 input, carries out predetermined process.
(main efficacy results of the manner)
As described above, in this embodiment, the second conduit 55b of magnetic head 55 can read these 2 kinds of recording densitys of 210bpi and 75bpi.In addition, in this embodiment, in control circuit 63, as the circuit for processing the magnetic data read by the second conduit 55b, comprise: for the magnetic data of 75bpi is processed the first treatment circuit 72, be connected in parallel for the second treatment circuit 73, first treatment circuit 72 of processing the magnetic data of 210bpi and the second treatment circuit 73 and the second conduit 55b.
Therefore, in this embodiment, if while by an end 2j of card 2 by the bottom surface 53a being pressed in cartoon and crossing path 53, while make the back side 2a of card 2 abut with magnetic head 55, card 2 is moved, then can read the magnetic data of the 75bpi being recorded in the second magnetic track 2f with the second conduit 55b, carry out demodulation, decoding with control circuit 63; If in addition limit by an end 2j of card 2 by being pressed in bottom surface 53a, while make the surperficial 2b of card 2 abut with magnetic head 55, card 2 is moved, then can read by the magnetic data of the second conduit 55b to the 210bpi being recorded in magnetic stripe 2d, carry out demodulation, decoding with control circuit 63.
Namely, in this embodiment, when observing from the thickness direction of card 2, even if the 4th magnetic track 2h of the second magnetic track 2f recording the magnetic data of 75bpi and the magnetic data recording 210bpi is configured in overlapping position on surface and the back side, but user is by moving it card 2 conversely, an end 2j of card 2 is made to be connected to bottom surface 53a, also can read by these two kinds of data of magnetic data of the 4th magnetic track 2h of the magnetic data of the second magnetic track 2f of 1 magnetic head, 55 couples of back side 2a and surperficial 2b, carry out demodulation, decoding with control circuit 63.That is, in this embodiment, with fairly simple formation, demodulation, decoding can be carried out to these two kinds of data of magnetic data of the magnetic data of the magnetic stripe 2c of the back side 2a of such card 2 and the magnetic stripe 2d of surperficial 2b.
In addition, in this embodiment, owing to can read by 1 magnetic head 55 these two kinds of data of magnetic data to the magnetic data of the second magnetic track 2f and the 4th magnetic track 2h, carry out demodulation, decoding with control circuit 63, therefore can configure scanner 56 opposedly with magnetic head 55.Therefore, in this embodiment, the magnetic data of card 2 can be read, and the image of card 2 can be obtained.
In this embodiment, first treatment circuit 72 comprises: differentiating circuit 78 and the solution of the amplifying circuit 76 of 75bpi, the filtering circuit 77 of 75bpi, 75bpi call signal generating circuit 68, and the second treatment circuit 73 comprises: differentiating circuit 67 and the solution of the amplifying circuit 79 of 210bpi, the filtering circuit 66 of 210bpi, 210bpi call signal generating circuit 68.Therefore, signal generating circuit 68 can be called via the second magnetic track demodulating data generative circuit 74 or the 4th magnetic track demodulating data generative circuit 75 from 2 solutions, input 2 kinds of demodulating datas to CPU64 simultaneously.Thus, the processing time of CPU64 when magnetic data is decoded can be shortened.
(variation of embodiment 3)
In embodiment 3, control circuit 63, except CPU64, also comprises: the first magnetic track demodulating data generative circuit 69, second magnetic track demodulating data generative circuit the 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.In addition, such as, control circuit 63 also can not comprise the first magnetic track demodulating data generative circuit 69, second magnetic track demodulating data generative circuit the 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.In this case, CPU64 based on call from solution signal generating circuit 68 input solution call signal, generating solution adjusting data, in addition, CPU64 based on generate demodulating data, generating solution code data.In addition, in this case, the decoded data that CPU64 differentiation calls based on which solution called in signal generating circuit 68 from 2 solutions the signal that signal generating circuit 68 inputs is effective.
In embodiment 3, second conduit 55b of magnetic head 55 is configured to read the magnetic data of these 2 kinds of recording densitys of 210bpi and 75bpi, first treatment circuit 72 comprises the amplifying circuit 76 of 75bpi, filtering circuit 77 and differentiating circuit 78, second treatment circuit 73 and comprises the amplifying circuit 79 of 210bpi, filtering circuit 66 and differentiating circuit 67.In addition, also can be such as, second conduit 55b is configured to read the magnetic data of kind of the recording density of 2 beyond 210bpi and/or 75bpi, and the first treatment circuit 72 and the second treatment circuit 73 comprise amplifying circuit, filtering circuit and the differentiating circuit that can process the magnetic data of the recording density that can be read by the second conduit 55b.
In addition, also can be that the second conduit 55b is configured to read the magnetic data of the recording density of more than 3 kinds, be connected in parallel to the treatment circuit of more than 3 of the magnetic data for the recording density processing more than 3 kinds respectively at the second conduit 55b.In addition, also can be, first conduit 55a and/or the 3rd conduit 55c is configured to read the magnetic data of recording density of more than two kinds, is connected in parallel to the treatment circuit of more than 2 of the magnetic data for processing recording density of more than two kinds respectively at the first conduit 55a and/or the 3rd conduit 55c.
Other embodiments
Above-mentioned mode is an example of optimal way of the present invention, but is not limited thereto, and in the scope not changing main points of the present invention, can carry out various distortion and implement.
In embodiment 1, in the card reader 1 of card conveying type comprising connecting gear 5, use control circuit 23, but control circuit 23 also may be used for the card reader of hand.In this case, card reader can be the card reader of the hand brush formula identical with embodiment 3, also can be the card reader of so-called impregnated.In addition, in this case, CPU24 moves the reversal of magnetism number of the solution call signal during predetermined distance based on card 2, differentiates the recording density of magnetic data.
In embodiment 3, in the card reader 51 of hand brush formula, use control circuit 63, but control circuit 63 also may be used for the card reader of impregnated.In addition, control circuit 63 can also be used for the card reader of card conveying type.
In the above-described embodiment, card reader 1,51 is card reader of the card for the treatment of the card 2 of vinyl chloride, the card 2 of PET or card 2 made of paper etc.In addition, such as, the magnetic information reading device of structure of the present invention is adopted also can be magnetic information reading device for the treatment of magnetic information recording mediums such as passports.

Claims (3)

1. a magnetic information reading device, is characterized in that, comprising:
Magnetic head, the magnetic data that can record the magnetic stripe being formed at magnetic information recording medium reads; And
Control circuit, for carrying out demodulation, decoding to the magnetic data by described head read,
Described magnetic head comprise can read magnetic data, the conduit of more than 1,
Described control circuit comprises:
Be connected in parallel with 1 described conduit, and for the treatment circuit that processes the magnetic data of 210bpi and treatment circuit i.e. 2 the described treatment circuits for processing the magnetic data of 75bpi; And
Counting circuit, directly or be connected via the outgoing side of predetermined circuit with 2 described treatment circuits,
Described treatment circuit comprises:
Amplifying circuit, amplifies the output signal from described conduit;
Filtering circuit, removes predetermined frequency component from the output signal of described amplifying circuit;
Differentiating circuit, carries out differential to the output signal from described filtering circuit; And
Solution calls signal generating circuit, based on the output signal from described differentiating circuit, generates the solution call signal that rectangle that magnetic data solution calls is wavy,
Described counting circuit is based on the described solution call signal calling signal generating circuit input from 2 described solutions, generating solution adjusting data and decoded data, and differentiate that the decoded data based on calling in signal generating circuit described in which solution from 2 described solutions and call the signal of signal generating circuit input is effective
Wherein, bpi is bit per inch, i.e. bit per inch.
2. magnetic information reading device as claimed in claim 1, is characterized in that,
Described magnetic stripe is formed respectively on the surface of described magnetic information recording medium and the back side,
Described magnetic stripe is formed along with the long side direction of described magnetic information recording medium to the substantial parallel described magnetic information recording medium of the direction of insertion of described magnetic information reading device,
The magnetic data of the first magnetic track, the second magnetic track and the 3rd these 3 magnetic tracks of magnetic track is had in the described magnetic stripe recording at the back side being formed at described magnetic information recording medium,
There is the magnetic data of 210bpi at described first track recording, have the magnetic data of 75bpi at described second track recording, have the magnetic data of 210bpi at described 3rd track recording,
Described first magnetic track, described second magnetic track and described 3rd magnetic track, from an end side of the short side direction of the described magnetic information recording medium of the long side direction substantial orthogonality with described magnetic information recording medium, are arranged in order with this,
The magnetic data of 1 magnetic track of the 4th magnetic track is had in the described magnetic stripe recording on the surface being formed at described magnetic information recording medium,
The magnetic data of 210bpi is had at described 4th track recording,
When observing from the thickness direction of described magnetic information recording medium, described 4th magnetic track overlapping with described second magnetic track at least partially.
3. magnetic information reading device as claimed in claim 2, is characterized in that,
Comprise image fetching unit, described image fetching unit is configured in the mode opposed with described magnetic head, to obtain the image of described magnetic information recording medium.
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