CN102117622A - Magnetic information reading device - Google Patents

Magnetic information reading device Download PDF

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Publication number
CN102117622A
CN102117622A CN2010106247457A CN201010624745A CN102117622A CN 102117622 A CN102117622 A CN 102117622A CN 2010106247457 A CN2010106247457 A CN 2010106247457A CN 201010624745 A CN201010624745 A CN 201010624745A CN 102117622 A CN102117622 A CN 102117622A
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magnetic
circuit
data
conduit
track
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CN2010106247457A
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CN102117622B (en
Inventor
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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Priority to CN201410557984.3A priority Critical patent/CN104361307B/en
Priority to CN201510127780.0A priority patent/CN104751091B/en
Publication of CN102117622A publication Critical patent/CN102117622A/en
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  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

The invention provides a magnetic information reading device, wherein the magnetic data recording density of the magnetic data of the magnetic information recording medium deviating from the international standard or JIS standard is demodulated and decoded, thereby improving the versatility.The magnetic information reading device comprises a magnetic head (3) for reading the magnetic data of the magnetic stripes formed on 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) comprises a plurality of groove channels (3a, 3b, 3c) for reading the magnetic data recording the density.The control circuit (23) comprises a plurality of processing circuits (26, 27) respectively connected with one groove channel (3a, 3b, 3c) in parallel for processing the magnetic data of a plurality of recording densities according to each of the recording densities and a calculation circuit (24) connected with the output terminals of the plurality of processing circuits (26, 27) directly or via predetermined circuits.

Description

The magnetic information reading device
Technical field
The present invention relates to be used for magnetic information reading device that the magnetic data that is recorded in magnetic information recording medium is read.
Background technology
Record format with magnetic card of magnetic stripe is stipulated by international standard or JIS standard (Japanese Industrial Standards).As the magnetic card that meets this standard, circulate extensively in Japan as shown in Figure 4, two faces of 2a and surperficial 2b are formed with the card 2 of magnetic stripe 2c, 2d overleaf.According to JIS standard " JISX6302-2 ", in being formed at the magnetic stripe 2c of 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 being formed at the magnetic stripe 2d of surperficial 2b, record the magnetic data of this 1 magnetic track of magnetic track 2h (below be designated as the 4th magnetic track 2h).In addition, according to above-mentioned JIS standard, the recording density (more specifically being average record density) that is 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 (more specifically being average record density) that is recorded in the magnetic data of the second magnetic track 2f is 75bpi.
In addition, as shown in Figure 4, if the distance of establishing from the end 2j that blocks 2 short side direction to the end of the first magnetic track 2e is L1, distance from an end 2j to the other end of the first magnetic track 2e is L2, the distance of the end from an end 2j to the second magnetic track 2f is L3, distance from an end 2j to the other end of the second magnetic track 2f is L4, from the distance of the end of an end 2j to the three magnetic track 2g is L5, from the distance of the other end of an end 2j to the three magnetic track 2g is L6, from the distance of the end of an end 2j to the four magnetic track 2h is L7, from the distance of the other end of an end 2j to the four magnetic track 2h is L8, then according to the JIS standard, distance L 1～L8 for example is 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 blocking 2 thickness direction and observe, the part of the 4th magnetic track 2h is configured in and the gamut of second magnetic track 2f position overlapped roughly.
In the past, be recorded in the magnetic card reader that the card 2 of magnetic stripe 2c reads as magnetic data to the first magnetic track 2e, the second magnetic track 2f and the 3rd these 3 magnetic tracks of magnetic track 2g, known have a kind of magnetic card reader, and it is mounted with has the magnetic head (for example with reference to patent documentation 1) of 3 conduits of butt 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, for example as the circuit that reads that is used for magnetic data is carried out demodulation and decoding, be connected with the circuit that reads that 210bpi uses respectively with the conduit of the first magnetic track 2e butt and with the conduit of the 3rd magnetic track 2g butt, be connected with the circuit that reads that 75bpi uses at conduit with the second magnetic track 2f butt.In addition, use a kind of magnetic card reader with contact, the magnetic head of its loading has and is used for 1 conduit that the magnetic stripe 2d to the magnetic data that records 1 magnetic track reads.In this magnetic card reader,, be connected with the circuit that reads that 210bpi uses at conduit with magnetic stripe 2d butt as the circuit that reads that is used for magnetic data is carried out demodulation, decoding.
The prior art document
Patent documentation 1: the Jap.P. spy opens the 2000-306211 communique
Summary of the invention
The problem to be solved in the present invention
In recent years, variation appears in magnetic information recording mediums such as the card that circulates on market, has also occurred not meeting the magnetic information recording medium of international standard or JIS standard on market.For example, occurred on market: the recording density that is recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g all is the magnetic information recording medium of 210bpi; And the recording density that is recorded in the magnetic data of the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g all is the magnetic information recording medium of 75bpi.
Yet, in the card reader that patent documentation 1 discloses, owing to be connected with the circuit that reads that 210bpi uses respectively with the conduit of the first magnetic track 2e butt and with the conduit of the 3rd magnetic track 2g butt, be connected with the circuit that reads that 75bpi uses at conduit, therefore be difficult to the magnetic data that recording density to the magnetic data of each magnetic track departs from the magnetic information recording medium of international standard or JIS standard and carry out suitable demodulation, decoding with the second magnetic track 2f butt.Therefore, under the situation of in the past card reader,, must change and read circuit, make its card reader, the versatility decline of card reader as this magnetic information recording medium special use for the magnetic data of the outer magnetic information recording medium of such standard is carried out demodulation, decoding.
In addition, as above-mentioned card 2, it is the card 2 that the two sides of 2a and surperficial 2b overleaf is formed with magnetic stripe 2c, 2d, when observing from blocking 2 thickness direction, the part of the 4th magnetic track 2h that records the magnetic data of 210bpi is configured in and records the gamut position overlapped roughly of the second magnetic track 2f of the magnetic data of 75bpi, when such card 2 is handled, in card reader in the past, the magnetic head and being used to of magnetic data that need be used to read the magnetic stripe 2c of back side 2a reads the magnetic head of magnetic data of the magnetic stripe 2d of 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, its magnetic data that can depart from the magnetic information recording medium of international standard or JIS standard to the recording density of magnetic data is carried out demodulation, decoding, can improve versatility.In addition, the object of the present invention is to provide a kind of magnetic information reading device, can carry out demodulation, decoding to the surface of magnetic information recording medium and the magnetic data at the back side with fairly simple formation, wherein, this magnetic information recording medium is formed with magnetic stripe with the two sides on surface overleaf, when the thickness direction of magnetic information recording medium is observed, the magnetic track that records the magnetic data of different recording densitys is configured in position overlapped on the surface and the back side.
The method that is used to deal with problems
In order to address the above problem, magnetic information reading device of the present invention is characterised in that, comprising: magnetic head, can read the magnetic data that magnetic stripe write down that is formed at magnetic information recording medium; And control circuit, be used for the magnetic data that is read by magnetic head is carried out demodulation, decoding, magnetic head comprise the magnetic data that can read a plurality of recording densitys, the conduit more than 1, control circuit comprises: a plurality of treatment circuits, be connected in parallel with 1 conduit, and be used for the magnetic data of a plurality of recording densitys being handled according to each recording density; And counting circuit, directly or via predetermined circuit be connected with the outgoing side of a plurality of treatment circuits.
In magnetic information reading device of the present invention, magnetic head comprise the magnetic data that can read a plurality of recording densitys, the conduit more than 1, control circuit comprises a plurality of treatment circuits, a plurality of treatment circuits and 1 conduit are connected in parallel, and are used for according to each recording density the magnetic data of a plurality of recording densitys being handled.Therefore, in the present invention, even the recording density of the magnetic data that magnetic stripe write down of a certain magnetic information recording medium, different with the recording density of the magnetic data that magnetic stripe write down of other magnetic information recording mediums, also can read the magnetic data of this different recording density with 1 conduit of magnetic head, carry out demodulation, decoding with control circuit.That is, in the present invention, can carry out demodulation, decoding with control circuit with 1 conduit to the magnetic data of the recording density that meets international standard or JIS standard with depart from international standard or the magnetic data of the recording density of JIS standard reads.Therefore, in magnetic information reading device of the present invention, can depart from the magnetic data of the magnetic information recording medium of international standard or JIS standard to the recording density of magnetic data and carry out demodulation, decoding, can improve versatility.
In addition, in the present invention, magnetic head comprise the magnetic data that can read a plurality of recording densitys, the conduit more than 1, control circuit comprises a plurality of treatment circuits, a plurality of treatment circuits and 1 conduit are connected in parallel, and are used for according to each recording density the magnetic data of a plurality of recording densitys being handled.Therefore, in the present invention, the user is by with magnetic information recording medium conversely and the operation of being scheduled to, can read with 1 magnetic head these two kinds of data of magnetic data the magnetic stripe at the magnetic data of the magnetic stripe on the surface of magnetic information recording medium and the back side, carry out demodulation with control circuit, decoding, wherein, the recording density of the magnetic data that magnetic track write down of the magnetic stripe on the surface of magnetic information recording medium, different with the recording density of the magnetic data that magnetic track write down of the magnetic stripe at the back side of magnetic information recording medium, and when the thickness direction of magnetic information recording medium is observed, these magnetic tracks are configured in position overlapped on the surface and the back side.That is, in the present invention, can be with fairly simple formation, these two kinds of data of magnetic data of the magnetic stripe at the magnetic data of magnetic stripe such magnetic information recording medium, the surface and the back side are carried out demodulation, decoding.
In the present invention, preferably control circuit comprises commutation circuit, this commutation circuit is connected in parallel to a plurality of treatment circuits at input side, and directly or via predetermined circuit be connected with counting circuit at outgoing side, counting circuit is based on the signal of input, differentiate the recording density of the magnetic data that magnetic stripe write down, commutation circuit is switched, make that the output signal from the treatment circuit that is used for the magnetic data of the recording density that determines is handled inputs to counting circuit.If constitute like this, even then the outgoing side of a plurality of treatment circuits is connected with counting circuit via predetermined circuit, but, also can be only the output signal of the treatment circuit handled from the magnetic data of the recording density that is used for magnetic stripe is write down be inputed to counting circuit in the demodulation of carrying out magnetic data, when decoding.Therefore, the processing of magnetic data being carried out the counting circuit in demodulation, when decoding can be simplified, the processing time of the counting circuit when magnetic data carried out demodulation, decoding can be shortened.
In the present invention, preferably control circuit comprises separating between commutation circuit and counting circuit and calls signal generating circuit, this is separated and calls signal generating circuit based on the output signal from commutation circuit, the generation magnetic data is separated wavy the separating of rectangle of calling and is called signal, treatment circuit comprises: filtering circuit, remove predetermined frequency component from the output signal of conduit; And differentiating circuit, the output signal from filtering circuit is carried out differential.If constitute like this,, also can call signal generating circuit generating solution call signal with common separating even then when control circuit comprises a plurality of treatment circuit.Therefore, structure that can 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 synchronous the use data of magnetic with the some cycles counter-rotating, counting circuit is differentiated the recording density of the magnetic data that magnetic stripe write down based on the synchronous result that reads with data at conduit.If constitute like this, even then the outgoing side of a plurality of treatment circuits is connected with counting circuit via predetermined circuit, but when the demodulation of the valid data part of carrying out magnetic data, decoding, also can be only the output signal of the treatment circuit handled from the magnetic data of the recording density that is used for magnetic stripe is write down be inputed to counting circuit.Therefore, the processing of the counting circuit in the time of can simplifying valid data to magnetic data and partly carry out demodulation, decoding, the processing time of the counting circuit in the time of can shortening valid data to magnetic data and partly carry out demodulation, decoding.In addition, if constitute like this, then, therefore differentiate the recording density of magnetic data easily with data owing to when counting circuit is differentiated the recording density of the magnetic data that magnetic stripe write down, can utilize the synchronous result that reads of magnetic with the some cycles counter-rotating.Thereby, the processing of the counting circuit in the time of can simplifying the recording density of differentiating magnetic data, the processing time of the counting circuit in the time of can shortening the recording density of differentiating magnetic data.
In the present invention, preferably the magnetic information reading device comprises the connecting gear that is used to transmit magnetic information recording medium, and counting circuit is differentiated the recording density of the magnetic data that magnetic stripe write down based on the frequency of the signal of input.If constitute like this, then if utilize connecting gear to transmit magnetic information recording medium with approximately constant speed, then can be with the recording density of counting circuit than the magnetic data that is easier to and suitably differentiates magnetic stripe and write down.
In the present invention, also can for, the magnetic information reading device comprises first testing agency and second testing agency, be used to detect magnetic information recording medium to the direction of insertion of 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, be configured in the insertion oral-lateral of magnetic information recording medium with respect to second testing agency, counting circuit is based on the signal of input, play with second testing agency to detect reversal of magnetism number till the leading section of magnetic information recording medium from the leading section that detects magnetic information recording medium with first testing agency, differentiate the recording density of the magnetic data that magnetic stripe write down.In this case, even magnetic information recording medium does not move with approximately constant speed, also can be with the recording density of counting circuit than the magnetic data that is easier to and suitably differentiates magnetic stripe and write down.
In the present invention, preferably for the magnetic information reading device, as magnetic head, comprise that medium inserts detection head and data demodulates head, this medium inserts to detect with head and is used to detect magnetic information recording medium insertion magnetic information reading device, data demodulates with the magnetic data that head is used for that magnetic stripe is write down read, demodulation, decoding, counting circuit detects the synchronous data of using that the conduit with head reads, the recording density of the differentiation magnetic data that magnetic stripe write down based on being inserted by medium.If constitute like this, then before reading magnetic data with head, can reliably commutation circuit be switched with data demodulates.
In the present invention, preferably control circuit comprises the head commutation circuit, this head commutation circuit is connected in parallel to medium at input side and insert detects with 1 conduit of head and data demodulates 1 conduit with head, and is connected in parallel to a plurality of treatment circuits at outgoing side.If constitute like this, then be connected in parallel to a plurality of treatment circuits and when data demodulates is connected in parallel to a plurality of treatment circuit with 1 conduit of head, compare, structure that can simplified control circuit with insert 1 conduit that detects with head at medium.
In the present invention, also can for, treatment circuit comprises: amplifying circuit, the output signal from conduit is amplified; Filtering circuit is removed predetermined frequency component from the output signal of amplifying circuit; Differentiating circuit carries out differential to the output signal from filtering circuit; And separate and call signal generating circuit, based on the output signal from differentiating circuit, the generation magnetic data is separated wavy the separating of rectangle of calling and is called signal.In this case, can call signal generating circuit and directly or via predetermined circuit import a plurality of signals simultaneously from a plurality of separating to counting circuit.Therefore, can shorten magnetic data is carried out demodulation, when decoding or the processing time of counting circuit when magnetic data decoded.
In the present invention, for example, control circuit respectively a plurality of separate to call comprise the demodulating data generative circuit between signal generating circuit and the counting circuit, this demodulating data generative circuit is based on calling separating that signal generating circuit exports respectively and call signal from a plurality of separating, the generating solution adjusting data, counting circuit is based on the signal from a plurality of demodulating data generative circuit inputs, the generating solution code data, and the decoded data of differentiating based on the signal of which the demodulating data generative circuit input from a plurality of demodulating data generative circuits is effective.In addition, in the present invention, for example, counting circuit also can be based on calling separating of signal generating circuit input and call signal from a plurality of separating, generating solution adjusting data and decoded data, and differentiate based on separating from a plurality of that to call the decoded data that the signal generating circuit which separate the signal that calls the signal generating circuit input be effective.
In the present invention, preferably magnetic head comprises the conduit of the magnetic data that can read 210bpi and these 2 kinds of recording densitys of 75bpi at least, and control circuit comprises the treatment circuit of the magnetic data that is used to handle 210bpi and is used to handle the treatment circuit of the magnetic data of 75bpi.Because generally speaking the recording density of the magnetic data that magnetic information recording medium write down that occurs on market mostly is 210bpi and 75bpi, therefore, then can simplify the structure of magnetic head and control circuit if constitute like this, improve the versatility of magnetic information reading device.In addition, if constitute like this, then can read with 1 magnetic head these two kinds of data of magnetic data to the magnetic stripe at the magnetic data of magnetic stripe magnetic information recording medium, the surface and the back side, carry out demodulation, decoding 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, magnetic data at the track recording 75bpi of the magnetic stripe at the back side of magnetic information recording medium, and when the thickness direction of magnetic information recording medium is observed, these magnetic tracks are configured in position overlapped on the surface and the back side.
In the present invention, as conduit, magnetic head for example comprises second conduit of the magnetic data that can read 210bpi and these 2 kinds of recording densitys of 75bpi, and first conduit and the 3rd conduit that comprise the magnetic data that can read 210bpi, first conduit, second conduit and the 3rd conduit with magnetic information recording medium to the approximately perpendicular direction of the direction of insertion of magnetic information reading device, with this arranged in order.
In the present invention, for example, be formed with magnetic stripe at the surface and the back side of magnetic information recording medium respectively, magnetic stripe 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 and form, magnetic stripe recording at the back side that is formed at magnetic information recording medium has first magnetic track, the magnetic data of second magnetic track and these 3 magnetic tracks of the 3rd magnetic track, first magnetic track, second magnetic track and the 3rd magnetic track from an end side of the short side direction of the approximately perpendicular magnetic information recording medium of long side direction of magnetic information recording medium with this arranged in order, the magnetic data that 210bpi is arranged at first track recording, the magnetic data that 75bpi is arranged at second track recording, the magnetic data that 210bpi is arranged at the 3rd track recording, magnetic stripe recording on the surface that is formed at magnetic information recording medium has the magnetic data of 1 magnetic track of the 4th magnetic track, the magnetic data that 210bpi is arranged at the 4th track recording, when the thickness direction of magnetic information recording medium is observed, at least a portion of the 4th magnetic track and second magnetic track are overlapping.
In the present invention, the magnetic information reading device for example comprises image fetching unit, and this image fetching unit and magnetic head are opposed and dispose, and obtain the image of magnetic information recording medium.In the present invention, since can be with 1 magnetic head to magnetic information recording medium, these two kinds of data of magnetic data of the magnetic data of the magnetic stripe on surface and the magnetic stripe at the back side read, carry out demodulation with control circuit, decoding, wherein, the recording density in the magnetic data of the track recording of the magnetic stripe on the surface of magnetic information recording medium of magnetic information recording medium, different with recording density in the magnetic data of the track recording of the magnetic stripe at the back side of magnetic information recording medium, and when the thickness direction of magnetic information recording medium is observed, these magnetic tracks are configured in position overlapped on the surface and the back side, thus can with magnetic head configuration image reading unit opposed to each other.Thereby, in the present invention, if the configuration image reading unit then can read the magnetic data of magnetic information recording medium, and obtains the image of magnetic information recording medium.
The effect of invention
As mentioned above, in magnetic information reading device of the present invention, can depart from the magnetic data of the magnetic information recording medium of international standard or JIS standard to the recording density of magnetic data and carry out demodulation, decoding, can improve versatility.In addition, in magnetic information reading device of the present invention, can carry out demodulation, decoding to the surface of magnetic information recording medium and the magnetic data at the back side with fairly simple formation, wherein, this magnetic information recording medium is formed with magnetic stripe with the two sides on surface overleaf, when the thickness direction of magnetic information recording medium is observed, the magnetic track that records the magnetic data of different recording densitys is configured in position overlapped on the surface and the back side.
Description of drawings
Fig. 1 is the vertical view that is used to illustrate the brief configuration of the magnetic information reading device that embodiments of the present invention 1 are related.
Fig. 2 is the side view that is used to illustrate from the brief configuration of the magnetic information reading device of the E-E direction of Fig. 1.
Fig. 3 is the front view that is used to illustrate from the brief configuration of the magnetic information reading device of the F-F direction of Fig. 1.
Fig. 4 is the figure that is used to illustrate the magnetic information recording medium of being handled by magnetic information reading device shown in Figure 1, (A) is the figure at the back side of expression magnetic information recording medium, (B) is the figure on the surface of expression magnetic information recording medium.
Fig. 5 is the block diagram of brief configuration that is used to illustrate the control circuit of magnetic information reading device shown in Figure 1.
Fig. 6 is used to illustrate input to the figure that separating of CPU shown in Figure 5 called the waveform of signal.
Fig. 7 is the block diagram of brief configuration that is used to illustrate the control circuit of the magnetic information reading device that embodiments of the present invention 2 are related.
Fig. 8 is the figure that is used for illustrating at the method for discrimination of the recording density of the magnetic data of CPU shown in Figure 7.
Fig. 9 is the stereographic map of the related magnetic information reading device of embodiments of the present invention 3.
Figure 10 is the figure that is used to illustrate from the configuration relation of magnetic head, scanner and the liner roll of the G-G direction of Fig. 9.
Figure 11 is the cut-open view of magnetic information reading device that is equivalent to the H-H cross section of Figure 10.
Figure 12 is used to illustrate the figure that crosses the configuration relation of the magnetic information recording medium in path and magnetic head by cartoon shown in Figure 9, (A) being the figure that is used to illustrate the configuration relation of the back side of magnetic information recording medium and magnetic head, (B) is the figure that is used to illustrate the configuration relation of the surface of magnetic information recording medium and magnetic head.
Figure 13 is the block diagram of brief configuration that is used to illustrate the control circuit of magnetic information reading device shown in Figure 9.
Figure 14 is the process flow diagram of an example of flow process that is illustrated in effective judgement control of decoded data among 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
The 2b surface
2c, 2d magnetic stripe
2j one 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 mouth
9 fore heads (magnetic head, medium insert and detect with head, first testing agency)
9a first conduit (conduit)
9b second conduit (conduit)
9c the 3rd conduit (conduit)
10 testing agencies (first testing agency, second testing agency)
11 testing agencies (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 separate and call signal and generate the loop
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 that is used to illustrate the brief configuration of the magnetic information reading device 1 that embodiments of the present invention 1 are related.Fig. 2 is the side view that is used to illustrate from the brief configuration of the magnetic information reading device 1 of the E-E direction of Fig. 1.Fig. 3 is the front view that is used to illustrate from the brief configuration of the magnetic information reading device 1 of the F-F direction of Fig. 1.Fig. 4 is the figure that is used to illustrate the magnetic information recording medium of being handled by magnetic information reading device shown in Figure 112, (A) is the figure of the back side 2a of expression magnetic information recording medium 2, (B) is the figure of the surperficial 2b of expression magnetic information recording medium 2.
The magnetic information reading device 1 of this embodiment is promptly to block the card reader that 2 magnetic data reads, magnetic data is decoded to being recorded in magnetic information recording medium.Therefore, below the magnetic information reading device 1 of this embodiment is designated as " card reader 1 ".This card reader 1 comprises as Fig. 1～shown in Figure 3: be used for magnetic head 3,4 that the magnetic data that is recorded in card 2 is read; And the connecting gear 5 that is used for 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, to transmitting from inserting mouthful 6 cards 2 that insert.
In addition, card reader 1 comprises: be used for the gate part 8 with insertion mouth 6 one side closures of card transfer path 7; Be used for inserting the fore head 9 that card reader 1 detects to blocking 2; And be used for blocking 4 testing agencies 10～13 that 2 positions in card reader 1 are detected.And card reader 1 comprises: be used for the IC contact block 14 with IC contact that the card 2 that is fixed with the IC chip is handled; And be used for being built-in with the communication antenna 15 that communication is handled with the card 2 of antenna.
In this embodiment, come transfer card 2 along the directions X shown in Fig. 1 etc.Particularly, insert card 2 and, discharge card 2 to the X1 direction to the X2 direction with its suction.That is, the X1 direction is the direction of insertion of card 2.In addition, directions X is the long side direction that inserts the card 2 in the card reader 1.In addition, be to insert the short side direction of the card 2 in the card reader 1 with the approximately perpendicular Y direction of directions X.
Card 2 for example is that thickness is the card of the vinyl chloride system of the rectangle about 0.7～0.8mm.Back side 2a at card 2 is formed with the magnetic stripe 2c that records magnetic data, is formed with the magnetic stripe 2d that records magnetic data at the surperficial 2b of card 2. Magnetic stripe 2c, 2d form along the long side direction of card 2.
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 at magnetic stripe 2c.The first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, from an end 2j one side of blocking 2 short side direction with this arranged in order.Record the magnetic data of the 4th this 1 magnetic track of magnetic track 2h 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, for example the recording mode with F2F writes down magnetic data.In addition, card 2 in the scope of direction of insertion from the predetermined distance L 11 of front end (the X1 direction end) 2k of magnetic stripe 2c, become and record the synchronous preamble portion 2m with data of magnetic with some cycles counter-rotating.That is, record the position " 0 " of synchronous usefulness at the 2m of preamble portion.Equally, the card 2 in the scope of direction of insertion from the predetermined distance L 12 of front end (the X1 direction end) 2n of magnetic stripe 2d, become and record the synchronous preamble portion 2p with data of magnetic, record the position " 0 " of synchronous usefulness at the 2p of preamble portion with some cycles counter-rotating.In addition, be provided with the 2m of preamble portion, 2p by JIS standard " JISX6302-2 " regulation at magnetic stripe 2c, 2d, according to this JIS standard, L11 is 7.44 (mm), and L12 is 5 (mm).
In this embodiment, the recording density that is recorded in the magnetic data of the first magnetic track 2e is 210bpi or 75bpi, the recording density that is recorded in the magnetic data of the second magnetic track 2f is 210bpi or 75bpi, the recording density that is recorded in the magnetic data of the 3rd magnetic track 2g is 210bpi or 75bpi, and the recording density that is recorded in the magnetic data of the 4th magnetic track 2h is 210bpi or 75bpi.That is, according to the card 2 that inserts card reader 1, the recording density of magnetic data that is recorded in each magnetic track 2e～2h is different sometimes.For example, in the card 2 that inserts card reader 1, have the card 2 that all records 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 that all records 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 can be at the fixing IC chip of card 2 surperficial 2b.In addition, also can be to blocking the antenna of 2 built-in communication usefulness.In addition, card 2 also can be that thickness is PET (polyethylene terephthalate) card about 0.18～0.36mm or the paper card of predetermined thickness etc.
Magnetic head 3 and magnetic head 4 clip card transfer path 7, dispose opposite one another.In addition, magnetic head 3 and magnetic head 4 are arranged such that the magnetic stripe 2c butt of magnetic head 3 and the back side 2a of card 2, the magnetic stripe 2d butt of magnetic head 4 and the surperficial 2b of card 2.In addition, magnetic head 3 and magnetic head 4 are configured in the close X2 direction side of card transfer path 7.
Magnetic head 3 comprises 3 conduits, is respectively to be used for the first conduit 3a (with reference to Fig. 5) that the magnetic data that is recorded in the first magnetic track 2e is read, the 3rd conduit 3c (with reference to Fig. 5) that is used for the second conduit 3b (with reference to Fig. 5) that the magnetic data that is recorded in the second magnetic track 2f is read and is used for the magnetic data that is recorded in the 3rd magnetic track 2g is read.The first conduit 3a, the second conduit 3b and the 3rd conduit 3c in the Y direction with this arranged in order.In addition, the first conduit 3a, the second conduit 3b and the 3rd conduit 3c can read the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi.That is, the first conduit 3a of this embodiment, the second conduit 3b and the 3rd conduit 3c are the conduits that can read the magnetic data of a plurality of recording densitys.
Magnetic head 4 comprises 1 conduit (not shown), is used for the magnetic data that is recorded in the 4th magnetic track 2h is read.This conduit can read the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi.That is, the conduit of the magnetic head 4 of this embodiment is the conduit that can read the magnetic data of a plurality of recording densitys.
Connecting gear 5 comprises: with the transfer roller 17 of card 2 butts and transfer card 2; And the motor 18 that drives transfer roller 17.Transfer roller 17 links via predetermined gear train with motor 18.Configuration transfer roller 17 makes it adjacent with magnetic head 3,4 in the Y direction.Motor 18 is equipped with the scrambler 19 of the rotating speed that is used to detect motor 18.Scrambler 19 for example is made of the sensor of discoideus slit plate and optical profile type.In this embodiment, card 2 utilizes connecting gear 5 to transmit with constant speed in card reader 1.
It is distolateral that gate part 8 is configured in the X2 direction of card transfer path 7.With these gate part 8 bindings solenoid 20 is arranged, gate part 8 utilizes the power of solenoid 20, shown in the solid line of Fig. 3, will block transfer path 7 and open, and shown in the double dot dash line of Fig. 3, will block transfer path 7 and close in addition.
Fore head 9 be configured in insert mouthfuls 6 near.In addition, fore head 9 is configured to make itself and the magnetic stripe 2c butt of the back side 2a of card 2.In addition, the fore head 9 of this embodiment comprises and is used to detect 1 conduit that has or not magnetic stripe 2c.
Testing agency 10～13 for example is the sensor that comprises the optical profile type of light-emitting component and light receiving element, the end of 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 the front of magnetic head 3,4 of the direction of insertion of card 2, and testing agency 12 is configured in the back of 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.
It is distolateral that IC contact block 14 is configured in the X1 direction of card transfer path 7.IC contact block 14 links with predetermined link mechanism, slides and moves up and down at directions X.IC contact block 14 is by moving up and down, and makes the IC chip butt of IC contact and card 2, in addition, the IC contact left from blocking 2 IC chip.Communication is distolateral with the X1 direction that antenna 15 is configured in card transfer path 7.
(structure of control circuit)
Fig. 5 is the block diagram of brief configuration that is used to illustrate the control circuit 23 of magnetic information reading device 1 shown in Figure 1.Fig. 6 is used to illustrate input to the figure that separating of CPU24 shown in Figure 5 called the waveform of signal.In addition, in Fig. 5, illustrate with the related magnetic data of magnetic head 3 read the relevant structure of control.
Card reader 1 comprises control circuit 23, is used for the magnetic data that is read by magnetic head 3,4 is carried out demodulation, decoding.As shown in Figure 5, be connected with magnetic head 3 with control circuit 23.Particularly, the first conduit 3a of magnetic head 3, the second conduit 3b and the 3rd conduit 3c and control circuit 23 are connected in parallel.In addition, also be connected with the conduit of magnetic head 4 with control circuit 23.
Control circuit 23 comprises the CPU24 as counting circuit.In addition, in control circuit 23, circuit as being used for the magnetic data that is read by the first conduit 3a is handled comprises: amplifying circuit 25, the treatment circuit 26 (below be designated as first treatment circuit 26) that is used for the magnetic data of 210bpi is handled, the treatment circuit 27 (below be designated as second treatment circuit 27), the commutation circuit 28 that are used for the magnetic data of 75bpi is handled and separate and call signal generating circuit 29.In addition, in control circuit 23, the circuit as being used for the magnetic data that is read by the second conduit 3b is handled comprises: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and separate and call signal generating circuit 29; Circuit as being used for the magnetic data that is read by the 3rd conduit 3c is handled comprises: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and separate and 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, to amplifying from the output signal of the first conduit 3a, the second conduit 3b and the 3rd conduit 3c.
First treatment circuit 26 and second treatment circuit 27 are connected in parallel with the outgoing side of amplifying circuit 25.First treatment circuit 26 comprises the differentiating circuit 34 that filtering circuit 33 that differentiating circuit 32, the second treatment circuits 27 that filtering circuit 31 that 210bpi uses and 210bpi use comprise that 75bpi uses and 75bpi use. 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.Particularly, filtering circuit the 31, the 33rd, so-called low-pass filter is removed the above frequency component of predetermined frequency.Differentiating circuit 32,34 is connected with filtering circuit 31,33, to carrying out differential from the output signal of filtering circuit 31,33.
At the input side of commutation circuit 28, be connected in parallel to first treatment circuit 26 and second treatment circuit 27.In addition, at the outgoing side of commutation circuit 28, be connected with to separate and call signal generating circuit 29.Commutation circuit 28 is based on the control signal from CPU24, in first treatment circuit 26 or second treatment circuit 27 which called signal generating circuit 29 and be connected and switch with separating.That is, commutation circuit 28 realizes in first treatment circuit 26 or second treatment circuit 27 any called the function that signal generating circuit 29 is connected with separating.In addition, about the changing method of commutation circuit 28 with aftermentioned.
Separating the outgoing side that calls signal generating circuit 29 is connected with CPU24.Separate and call signal generating circuit 29 based on the output signal from commutation circuit 28, the generation magnetic data is separated wavy the separating of rectangle of calling and is called signal.Particularly, separate and call signal generating circuit 29 and generate wavy the separating of rectangles and call signal, this rectangle is wavy separates and calls signal and change with the certain transfer rate of the card 2 that undertaken by connecting gear 5 and the cycle that recording density was determined of magnetic data.
For example, when being " 0 ", separating and call signal generating circuit 29 shown in Fig. 6 (A), generate separating of certain period T 1 and call signal SG1 in all positions that the output signal from commutation circuit 28 is based on the signal of magnetic data of 210bpi and magnetic data.In addition, when being " 0 ", separating and call signal generating circuit 29 shown in Fig. 6 (B), generate separating of certain period T 2 and call signal SG2 in all positions that the output signal from commutation circuit 28 is based on the signal of magnetic data of 75bpi and magnetic data.In addition, period T 2 becomes about 2.8 times of period T 1.
As mentioned above, in this embodiment, according to the card 2 that inserts card reader 1, the recording density of magnetic data of each magnetic track that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is different sometimes.Therefore, in this embodiment, CPU24 is based on calling separating of signal generating circuit 29 input and call signal from separating, and the recording density of differentiating the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g is 210bpi or 75bpi.
Particularly, CPU24 differentiates the recording density of the magnetic data of the card 2 that is transmitted by connecting gear 5 based on the result that reads at the first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c.In addition, CPU24 differentiates the recording density of magnetic data based on the synchronous result that reads with data who is recorded in the 2m of preamble portion.And CPU24 differentiates the recording density of magnetic data based on from separating the frequency of calling signal of separating of calling signal generating circuit 29 inputs.In addition, because being recorded in the synchronous position with data of the 2m of preamble portion all is " 0 ", as mentioned above, separate the period T 2 of calling signal SG2 and be about 2.8 times that separate the period T 1 of calling signal SG1, therefore CPU24 can differentiate the recording density of magnetic data easily based on from separating the frequency of calling signal of separating of calling signal generating circuit 29 inputs.
In addition, be connected with commutation circuit 28 with CPU24, CPU24 switches commutation circuit 28, makes that be used for first treatment circuit 26 that the magnetic data of the recording density that determines is handled or second treatment circuit 27 calls signal generating circuit 29 and be connected with separating.That is, CPU24 switches commutation circuit 28, makes differentiating when being 210bpi for recording density, and first treatment circuit 26 calls signal generating circuit 29 and is connected with separating; Differentiating when being 75bpi for recording density, second treatment circuit 27 calls signal generating circuit 29 and is connected with separating.
In this embodiment, set the commutation circuit 28 read before the magnetic data, make the treatment circuit 26 of winning call signal generating circuit 29 and be connected with separating.Therefore, when differentiation was 210bpi for recording density, CPU24 did not export the control signal of switching usefulness to commutation circuit 28.On the other hand, differentiating when being 75bpi for recording density, CPU24 switches the control signal of usefulness to commutation circuit 28 outputs, and commutation circuit 28 is switched, and makes second treatment circuit 27 call signal generating circuit 29 and be connected with separating.
The switching of commutation circuit 28 is in the middle end of reading of synchrodata.That is, the switching of commutation circuit 28 is end before the valid data part of the magnetic data followed after magnetic head 3 reads synchronously with data.After the finishing switching of commutation circuit 28, card 2 also continues to transmit to the X1 direction, and the valid data of 3 pairs of magnetic data of magnetic head partly read.In addition, CPU24 continues based on calling signal generating circuit 29 separating of input and call signal from separating after differentiating recording density, and the valid data of magnetic data are partly carried out demodulation, decoding.
In addition, in control circuit 23, the circuit as being used for the magnetic data that the conduit by magnetic head 4 reads is handled comprises: amplifying circuit 25, first treatment circuit 26, second treatment circuit 27, commutation circuit 28 and separate and call signal generating circuit 29.By the magnetic data that the conduit of magnetic head 4 reads, same with the magnetic data that reads by the first conduit 3a, the second conduit 3b and the 3rd conduit 3c, differentiate recording density by CPU24, carry out demodulation, decoding then.
(the main effect of the manner)
As described above such, in this embodiment, the first conduit 3a of magnetic head 3, the second conduit 3b and the 3rd conduit 3c constitute and can read 210bpi and these 2 kinds of recording densitys of 75bpi, and the conduit of magnetic head 4 constitutes and can read 210bpi and these 2 kinds of recording densitys of 75bpi.In addition, in this embodiment, control circuit 23 comprises first treatment circuit 26 of the magnetic data that is used to handle 210bpi and is used to handle second treatment circuit 27 of the magnetic data of 75bpi, first treatment circuit 26 and second treatment circuit 27 be via amplifying circuit 25, is 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 no matter blocking the magnetic data that each magnetic track 2e～2h of 2 write down is 210bpi or 75bpi, can read the magnetic data of 210bpi and 75bpi with magnetic head 3,4, carries out demodulation, decoding with control circuit 23.Promptly, in this embodiment, the card 2 that can use magnetic head 3,4 to handle the card 2 of magnetic data and have the magnetic data of the recording density that departs from international standard or JIS standard with the recording density that meets international standard or JIS standard, wherein, preceding a kind of card 2 particularly 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; A kind of card 2 in back particularly 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, can depart from the magnetic data of the card 2 of international standard or JIS standard to the recording density of magnetic data and carry out demodulation, decoding, can improve versatility.
In addition, in this embodiment,, therefore can extensively utilize the card reader 1 on the market because the general recording density of the magnetic data that can be write down the card 2 that occurs on the market is that the magnetic data of 210bpi and the magnetic data of 75bpi are carried out demodulation, decoding.
In this embodiment, between commutation circuit 28 and CPU24, dispose separating of generating solution call signal and call signal generating circuit 29.Therefore, even when control circuit 23 comprises first treatment circuit 26 and second treatment circuit 27, also can call signal generating circuit 29 generating solution call signals with common separating.Therefore, in this embodiment, structure that can simplified control circuit 23.
In this embodiment, CPU24 is based on the synchronous result that reads with data who is recorded in the 2m of preamble portion, 2p, differentiate the recording density of magnetic data, commutation circuit 28 is switched, made that be used for first treatment circuit 26 that the magnetic data of the recording density that determines is handled or second treatment circuit 27 calls signal generating circuit 29 and be connected with separating.Therefore, even the outgoing side of first treatment circuit 26 or second treatment circuit 27 is via commutation circuit 28 and separate and call signal generating circuit 29 and be connected with CPU24, but when the valid data to magnetic data partly carry out demodulation, decoding, also only there is output signal to input to CPU24 from first treatment circuit 26 or second treatment circuit 27, wherein, first treatment circuit 26 or second treatment circuit 27 are used for the magnetic data of the recording density that is recorded in magnetic stripe 2c, 2d is handled.Therefore, in this embodiment, the processing of magnetic data being carried out the CPU24 in demodulation, when decoding can be simplified, the processing time of the CPU24 when magnetic data carried out demodulation, decoding can be shortened.
In this embodiment, CPU24 differentiates the recording density of magnetic data based on the synchronous result that reads with data who is recorded in the 2m of preamble portion, 2p.That is, when CPU24 differentiates the recording density of the magnetic data that is recorded in magnetic stripe 2c, 2d, utilize synchronous the read result with data of magnetic with the some cycles counter-rotating.Therefore, CPU24 differentiates the recording density of magnetic data easily.Therefore, the processing of the CPU24 in the time of can simplifying the recording density of differentiating magnetic data, the processing time of the CPU24 in the time of can shortening the recording density of differentiating magnetic data.
In this embodiment, CPU24 differentiates the recording density of magnetic data based on from separating the frequency of calling signal of separating of calling signal generating circuit 29 inputs.As mentioned above, owing to separate the period T 2 of calling signal SG2 and be about 2.8 times that separate the period T 1 of calling signal SG1, therefore in this embodiment, CPU24 is based on from separating the frequency of calling signal of separating of calling signal generating circuit 29 inputs, can be easily and suitably differentiate the recording density of magnetic data.
(variation of embodiment 1)
In embodiment 1, the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 constitutes and can the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi be read, first treatment circuit 26 comprises that filtering circuit 31 and differentiating circuit 32, the second treatment circuits 27 that 210bpi uses comprise filtering circuit 33 and the differentiating circuit 34 that 75bpi uses.In addition, for example also can for, the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 constitutes and can the magnetic data of 2 kinds of recording densitys beyond 210bpi and/or the 75bpi be read, first treatment circuit 26 and second treatment circuit 27 comprise filtering circuit and differentiating circuit, and this filtering circuit and differentiating circuit can be handled the magnetic data of the recording density that can be read by the conduit of the first conduit 3a, the second conduit 3b, the 3rd conduit 3c and the magnetic head 4 of magnetic head 3.In this case, control circuit 23 comprises amplifying circuit, and this amplifying circuit can be handled the magnetic data of the recording density that can be read by the conduit of the first conduit 3a, the second conduit 3b, the 3rd conduit 3c and the magnetic head 4 of magnetic head 3.
In addition, also can for, the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 constitutes and can the magnetic data of the recording density more than 3 kinds be read, control circuit 23 comprises the treatment circuit more than 3, is used for respectively the magnetic data of the recording density more than 3 kinds being handled.For example, also can for, the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 constitutes and can the magnetic data of 3 kinds of recording densitys be read, and control circuit 23 comprises and is used for these 3 treatment circuits of first treatment circuit, second treatment circuit and the 3rd treatment circuit of respectively magnetic data of 3 kinds of recording densitys being handled.
In embodiment 1, between commutation circuit 28 and CPU24, dispose to separate and call signal generating circuit 29.In addition, for example, commutation circuit 28 also can directly be connected with CPU24.In this case, first treatment circuit 26 and second treatment circuit 27 comprise respectively separating 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, the 3rd conduit 3c and the magnetic head 4 of magnetic head 3 respectively, is connected in parallel to first treatment circuit 26 and second treatment circuit 27 at amplifying circuit 25.In addition, for example also can for, first treatment circuit 26 and second treatment circuit 27 comprise amplifying circuit 25, and the conduit of the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 is in parallel with second treatment circuit 27 with first treatment circuit 26 respectively and directly be connected.
In embodiment 1, be formed with magnetic stripe 2d at the surperficial 2b of card 2.In addition, for example can not form magnetic stripe 2d 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 1,2 magnetic stripe 2c records the magnetic data of 3 magnetic tracks at card, but the track number that is recorded in the magnetic data of magnetic stripe 2c can be below 2, also can be more than 4.
In embodiment 1, the switching of commutation circuit 28 is end before the valid data part of the magnetic data followed after magnetic head 3 reads synchronously with data, after the finishing switching of commutation circuit 28, card 2 also continues to transmit to the X1 direction, and the valid data of 3 pairs of magnetic data of magnetic head partly read.In addition, when for example the switching of commutation circuit 28 does not finish before the valid data part synchronous narrower with the posting field of data, that magnetic head 3 reads magnetic data, also can will block 2 temporarily after the X2 direction is sent to the position of the valid data part that can read magnetic data with magnetic head 3 earlier, to block 2 and transmit to the X1 direction once more, read the valid data part of magnetic data with magnetic head 3.In addition, even before magnetic head 3 reads the valid data part of magnetic data during the finishing switching of commutation circuit 28, also can be earlier with card 2 temporarily after the X2 direction transmits, will block 2 once more to the transmission of X1 direction, read the valid data part of magnetic data with magnetic head 3.Like this, if will block 2 earlier temporarily after the X2 direction transmits, to block 2 transmits to the X1 direction once more, read the valid data part of magnetic data with magnetic head 3, the reading device that then can delinquency prevention person will be used to obtain magnetic data wrongly is installed in and inserts mouthfuls 6 so-called robbers' cards (skimming) that obtain magnetic data.
Embodiment 2
Fig. 7 is the block diagram of brief configuration that is used to illustrate the control circuit 43 of the magnetic information reading device 1 that embodiments of the present invention 2 are related.Fig. 8 is the figure that is used for illustrating at the method for discrimination of the recording density of the magnetic data of CPU24 shown in Figure 7.In addition, in Fig. 7, illustrate with the related magnetic data of magnetic head 3 and fore head 9 read the relevant structure of control.
In embodiment 1, CPU24 differentiates the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g based on the result that reads at the first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c.Different with it is, in embodiment 2, fore head 9 comprises: be used for the first conduit 9a that the magnetic data that is recorded in the first magnetic track 2e is read, these 3 conduits of the 3rd conduit 9c that are used for the second conduit 9b that the magnetic data that is recorded in the second magnetic track 2f is read and are used for the magnetic data that is recorded in the 3rd magnetic track 2g is read, CPU24 differentiates the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g based on the result that reads of the first conduit 9a, the second conduit 9b of the portion of being in advance 9 and the 3rd conduit 9c.
Because this point is an embodiment 1 and the main difference point of embodiment 2, is the center with this difference below therefore, the structure of the card reader 1 that embodiment 2 is related is described.In addition, in Fig. 7, Fig. 8, mark same mark for same structure with embodiment 1.
As mentioned above, fore head 9 comprises the first conduit 9a, the second conduit 9b and these 3 conduits of the 3rd conduit 9c.The first conduit 9a, the second conduit 9b and the 3rd conduit 9c constitute and can read 210bpi and these 2 kinds of recording densitys of 75bpi.That is, the first conduit 9a of this embodiment, the second conduit 9b and the 3rd conduit 9c are the conduits that can read the magnetic data of a plurality of recording densitys.
Control circuit 43 comprises: the amplifying circuit 45 that is connected respectively with the first conduit 9a, the second conduit 9b and the 3rd conduit 9c; Be connected in parallel to the head commutation circuit 46 of amplifying circuit 25 that is connected with the first conduit 3a and the amplifying circuit 45 that is connected with the first conduit 9a at input side; Be connected in parallel to the head commutation circuit 46 of amplifying circuit 25 that is connected with the second conduit 3b and the amplifying circuit 45 that is connected with the second conduit 9b at input side; And the head commutation circuit 46 that is connected in parallel to amplifying circuit 25 that is connected with the 3rd conduit 3c and the amplifying circuit 45 that is connected with the 3rd conduit 9c at input side.Outgoing side in head commutation circuit 46 is connected in parallel to first treatment circuit 26 and second treatment circuit 27.In this embodiment, set and read the preceding head commutation circuit 46 of magnetic data, make the first conduit 9a, the second conduit 9b of fore head 9 and the 3rd conduit 9c be connected with first treatment circuit 26 and second treatment circuit 27.
As mentioned above, in this embodiment, CPU24 differentiates the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g based on the result that reads of the first conduit 9a, the second conduit 9b of the portion of being in advance 9 and the 3rd conduit 9c.In addition, identical with embodiment 1 in this embodiment, CPU24 differentiates the recording density of magnetic data based on the synchronous result that reads with data who is recorded in the 2m of preamble portion.Herein, fore head 9 be configured in insert mouthfuls 6 near.Therefore, when the 2m of preamble portion passed through fore head 9, card 2 was interior by manually inserting card reader 1 by the user, rather than transmit by connecting gear 5.That is the translational speed of the card 2 when, the 2m of preamble portion is by fore head 9 may not be certain.
Therefore, in this embodiment, for example, CPU24 based on input to separating of CPU24 call signal, play with testing agency 10 from the leading section (X1 direction end) that detects card 2 with fore head 9 and to detect reversal of magnetism number till the leading section of card 2, differentiate the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.Perhaps, CPU24 based on input to separating of CPU24 call signal, play with testing agency 11 from the leading section that detects card 2 with testing agency 10 and to detect reversal of magnetism number till the leading section of card 2, differentiate the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.Perhaps, CPU24 based on input to separating of CPU24 call signal, play with testing agency 10 from the leading section that detects card 2 with fore head 9 and to detect reversal of magnetism number till the leading section of card 2; With input to separating of CPU24 call signal, play the reversal of magnetism that detects till the leading section of card 2 with testing agency 11 from the leading section that detects card 2 with testing agency 10 and count the two, differentiate the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.
In addition, as shown in Figure 8, since recording density when being 210bpi, card 2 moves the reversal of magnetism number during the predetermined distance, when becoming recording density and being 75bpi, card 2 moves about 2.8 times of reversal of magnetism number during the predetermined distance, therefore CPU24 can differentiate the recording density of magnetic data easily based on from separating the reversal of magnetism number that calls signal of separating that calls signal generating circuit 29 inputs.
In addition, CPU24 is based on the result of the recording density of differentiating magnetic data, same with embodiment 1, commutation circuit 28 is switched, made that be used for first treatment circuit 26 that the magnetic data of the recording density that determines is handled or second treatment circuit 27 calls signal generating circuit 29 and be connected with separating.In this embodiment, the switching of commutation circuit 28 is to finish before magnetic head 3 reads magnetic data.
Be connected with head commutation circuit 46 with CPU24, if the finishing switching of commutation circuit 28, then CPU24 switches head commutation circuit 46, makes the first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c be connected with first treatment circuit 26 and second treatment circuit 27.Afterwards, CPU24 is based on the result that reads at the first conduit 3a, the second conduit 3b of magnetic head 3 and the 3rd conduit 3c, and the valid data of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g are partly carried out demodulation, decoding.
As described above such, in this embodiment, CPU24 based on insert mouthfuls 6 near the first conduit 9a, the second conduit 9b of fore head 9 of configuration and the 3rd conduit 9c read the result, differentiate the recording density of the magnetic data that is recorded in 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, before reading magnetic data, can reliably commutation circuit 28 be switched with magnetic head 3.
In this embodiment, CPU24 moves the reversal of magnetism number that calls signal of separating during the predetermined distance based on card 2, differentiates the recording density of magnetic data.Therefore, do not move, also can suitably differentiate the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g with CPU24 with constant speed even block 2.
In this embodiment, amplifying circuit 25,45 input sides in head commutation circuit 46 are connected in parallel, and first treatment circuit 26 and second treatment circuit 27 are connected in parallel at the outgoing side of head commutation circuit 46.Therefore, the situation that is connected with first treatment circuit 26 or second treatment circuit 27 with outgoing side at amplifying circuit 25,45 is respectively compared, structure that can simplified control circuit 43.
In addition, in this embodiment, fore head 9 be used for test card 2 insert the medium of card reader 1 insert detect use head, magnetic head 3 be used for to the magnetic data that is recorded in magnetic stripe 3c read, the data demodulates head of demodulation, decoding.In addition, in this embodiment, call reversal of magnetism number signal, till playing the leading section that detects card 2 with testing agency 10 from the leading section that detects card 2 with fore head 9 at CPU24 based on inputing to separating of CPU24, when differentiating the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, fore head 9 is to be configured in first testing agency that inserts mouthful 6 one sides with respect to testing agency 10, and testing agency 10 is second testing agencies.In addition, call reversal of magnetism number signal, till playing the leading section that detects card 2 with testing agency 11 from the leading section that detects card 2 with testing agency 10 at CPU24 based on inputing to separating of CPU24, when differentiating the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, testing agency 10 is configured in first testing agency that inserts mouthful 6 one sides with respect to testing agency 11, and testing agency 11 is second testing agencies.
(variation of embodiment 2)
In embodiment 2, amplifying circuit 25,45 input sides in head commutation circuit 46 are connected in parallel, and first treatment circuit 26 and second treatment circuit 27 are connected in parallel at the outgoing side of head commutation circuit 46.In addition, for example also can connect first treatment circuit 26, second treatment circuit 27 respectively at the outgoing side of amplifying circuit 25,45.
In embodiment 2, CPU24 based on input to separating of CPU24 call signal, play with testing agency 10 from the leading section that detects card 2 with fore head 9 and to detect reversal of magnetism number till the leading section of card 2; With input to separating of CPU24 call signal, play with testing agency 11 from the leading section that detects card 2 with testing agency 10 and to detect reversal of magnetism number till the leading section of card 2, differentiate the recording density of the magnetic data that is recorded in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g.In addition, for example also can be when card 2 inserts, to block transfer path 7 with gate part 8 closes, after the leading section of card 2 supports and runs into gate part 8, make gate part 8 avoid opening will block transfer path 7, and CPU24 based on input to separating of CPU24 call signal, support the position of running into gate part 8 and play with testing agency 10 or testing agency 11 and detect reversal of magnetism number till the leading section of card 2 from blocking 2 leading section, 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.If constitute like this, the reading device that then can delinquency prevention person will be used to obtain magnetic data wrongly is installed in and inserts mouthfuls 6 so-called robbers' cards that obtain magnetic data.
Embodiment 3
(brief configuration of magnetic information reading device)
Fig. 9 is the stereographic map of the related magnetic information reading device 51 of embodiments of the present invention 3.Figure 10 is the figure that is used to illustrate from the configuration relation of magnetic head 55, scanner 56 and the liner roll 57 of the G-G direction of Fig. 9.Figure 11 is the cut-open view of magnetic information reading device 51 that is equivalent to the H-H cross section of Figure 10.Figure 12 is used to illustrate by cartoon shown in Figure 9 cross the magnetic information recording medium 2 in path 53 and the figure of the configuration relation of magnetic head 55, (A) being the figure that is used to illustrate the configuration relation of the back side 2a of magnetic information recording medium 2 and magnetic head 55, (B) is the figure that is used to illustrate the configuration relation of the surperficial 2b of magnetic information recording medium 2 and magnetic head 55.
In addition, in the following description, shown in Fig. 9 waited, establishing mutually perpendicular 3 directions was directions X, Y direction and Z direction, and directions X is a fore-and-aft direction, and the Y direction is an above-below direction, and the Z direction is a left and right directions.In addition, X1 direction one side of establishing Fig. 9 is " back " side, and X2 direction one side is " preceding " side, Y1 direction one side be " on " side, Y2 direction one side is the D score side.
The magnetic information reading device 51 of this embodiment is the user by manually 2 operate, be used for the device that the magnetic data that is recorded in card 2 is read, decodes to blocking.In addition, the magnetic information reading device 51 of this embodiment is the user by manually to blocking 2 devices of operating, be used to obtain the image on the card 2.Particularly, magnetic information reading device 51 is card reader of so-called hand brush formula, and the limit makes card 2 cross path 53 along the cartoon that forms the groove shape and moves (making it cross path 53 by cartoon), and the limit is read the magnetic data of card 2 and obtained image on the card 2.Therefore, below the magnetic information reading device 51 of this embodiment is designated as " card reader 51 ".
Card reader 51 comprises shown in Fig. 9～11: be used for magnetic head 55 that the magnetic data that the card 2 of crossing path 53 by cartoon is write down is read; As reading character on the card 2 or bar code etc., obtaining the scanner 56 of the image fetching unit of the image on the card 2; And with scanner 56 arranged opposite, will cross the liner roll 57 that the card 2 in path 53 is pushed to scanner 56 by cartoon.
In this embodiment, constitute card reader 51, make the user limit make card 2 mobile to rear side (being the X1 direction) from the front side of card reader 51, read blocking 2 magnetic data on the limit, obtains the image on the card 2.That is, in this embodiment, the X1 direction is the direction of insertion of card 2, and is direction of passage.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 implement mode 1 explanation, card 2 for example is that thickness is the card of the vinyl chloride system of the rectangle about 0.7～0.8mm, 2a is formed with magnetic stripe 2c overleaf, is formed with magnetic stripe 2d at surperficial 2b.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 at magnetic stripe 2c.Record the magnetic data of the 4th this 1 magnetic track of magnetic track 2h 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, for example the recording mode with F2F writes down magnetic data.In addition, in this embodiment, the recording density that is 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 that is recorded in the magnetic data of the second magnetic track 2f is 75bpi.That is, the card 2 of insertion card reader 51 is the cards that meet international standard or JIS standard.
In addition, in this embodiment, as shown in figure 12, for distance L 1 from the end 2j that blocks 2 short side direction to the end of the first magnetic track 2e, distance L 2 from an end 2j to the other end of the first magnetic track 2e, the distance L 3 of a end from an end 2j to the second magnetic track 2f, distance L 4 from an end 2j to the other end of the second magnetic track 2f, distance L 5 from the end of an end 2j to the three magnetic track 2g, distance L 6 from the other end of an end 2j to the three magnetic track 2g, distance L 7 from the end of an end 2j to the four magnetic track 2h, from the distance L 8 of the other end of an end 2j to the four magnetic track 2h, as follows according to the 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 blocking 2 thickness direction and observe, the part of the 4th magnetic track 2h is configured in and the gamut of second magnetic track 2f position overlapped roughly.
In addition, back side 2a and/or surperficial 2b at card 2 have described character or figure, pattern etc.Perhaps, back side 2a and/or surperficial 2b at card 2 are printed with bar code etc.In addition, can be at the fixing IC chip of card 2 surperficial 2b, also can be to blocking the antenna of 2 built-in communication usefulness.
Magnetic head 55 comprises: the first conduit 55a that is used for the magnetic data that is recorded in the first magnetic track 2e is read, these 3 conduits of the 3rd conduit 55c that are used for the second conduit 55b that the magnetic data that is recorded in the second magnetic track 2f and the magnetic data that is recorded in the 4th magnetic track 2h are read and are used for the magnetic data that is recorded in the 3rd magnetic track 2g is read.Promptly, the first conduit 55a and the 3rd conduit 55c constitute and can the magnetic data of 210bpi be read.In addition, the second conduit 55b constitutes and can the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi be read.That is, the second conduit 55b of this embodiment is the conduit that can read the magnetic data of a plurality of recording densitys.In addition, the first conduit 55a, the second conduit 55b and the 3rd conduit 55c at left and right directions with this arranged in order.
Scanner 56 is scanners (imageing sensor) of so-called closing-type.Scanner 56 is opposed and dispose at left and right directions and magnetic head 55.Liner roll 57 is adjacent and dispose at above-below direction and magnetic head 55.
Cartoon is crossed path 53 as shown in figure 10, forms the groove shape of upper end side opening.In addition, cartoon is crossed path 53 as shown in figure 11, spreads all over the gamut from the front end of card reader 51 to the rear end, forms linearity.The degree of depth (degree of depth of above-below direction) that cartoon is crossed path 53 is more shallow than the width of the short side direction of card 2, and the upper end side of crossing the card 2 in path 53 by cartoon is exposed the outside in card reader 51.In the magnetic data that reads card 2 or when obtaining image on the card 2, the user catches the upper end side of exposing at the card 2 of the outside of card reader 51, makes card 2 side shifting backward, crosses path 53 so that block 2 by cartoon.
In this embodiment, cross the bottom surface 53a of the lower surface in path 53 if an end 2j of 2 will block in the limit by being pressed in the formation cartoon, the limit makes the back side 2a of card 2 and magnetic head 55 butts that card 2 is moved, and the magnetic data that then is recorded in magnetic stripe 2c can be read by magnetic head 55.Particularly, the magnetic data that is recorded in the first magnetic track 2e is read by the first conduit 55a, and the magnetic data that is recorded in the second magnetic track 2f is read by the second conduit 55b, and the magnetic data that is recorded in the 3rd magnetic track 2g is read by the 3rd conduit 55c.In addition, cross the bottom surface 53a in path 53 if an end 2j of 2 will be blocked in the limit by being pressed in cartoon, the limit makes the surperficial 2b of card 2 and magnetic head 55 butts that card 2 is moved, and the magnetic data that then is recorded in magnetic stripe 2d can be read by magnetic head 55.Particularly, the magnetic data that is 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 is crossed path 53 becomes and is used at the reference field of above-below direction with the aligned in position of the position of magnetic head 55 and magnetic stripe 2c, 2d.In addition, will block an end 2j of 2 by the limit and cross the bottom surface 53a in path 53 by being pressed in cartoon, the limit is moved card 2, 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 bottom surface 53a that crosses path 53 from cartoon to the distance L 21 of the end of the first conduit 55a, from bottom surface 53a to the first conduit 55a the other end distance L 22, from bottom surface 53a to the second conduit 55b an end distance L 23, from bottom surface 53a to the second conduit 55b the other end distance L 24, from the distance L 25 of the end of bottom surface 53a to the three conduit 55c, from the distance L 26 of the other end of bottom surface 53a to the three 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 brief configuration that is used to illustrate the control circuit 63 of magnetic information reading device 51 shown in Figure 9.Figure 14 is the process flow diagram of an example of flow process that is illustrated in effective judgement control of decoded data among the CPU64 shown in Figure 13.In addition, in Figure 13, illustrate with the related magnetic data of magnetic head 55 read the relevant structure of control.Card reader 51 comprises control circuit 63, is used for the magnetic data that is read by magnetic head 55 is carried out demodulation, decoding.As shown in figure 13, be connected with magnetic head 55 with control circuit 63.Particularly, at control circuit 63, the first conduit 55a of magnetic head 55, the second conduit 55b and the 3rd conduit 55c are connected in parallel.
Control circuit 63 comprises the CPU64 as counting circuit.In addition, in control circuit 63, circuit as being used for the magnetic data that is read by the first conduit 55a is handled comprises: the amplifying circuit 65 that 210bpi uses, the filtering circuit 66 that 210bpi uses, differentiating circuit 67 that 210bpi uses, separate and call the signal generating circuit 68 and the first magnetic track demodulating data generative circuit 69.
In addition, in control circuit 63, circuit as being used for the magnetic data that is read by the 3rd conduit 55c is handled comprises: the amplifying circuit 65 that 210bpi uses, the filtering circuit 66 that 210bpi uses, differentiating circuit 67 that 210bpi uses, separate and call signal generating circuit 68 and the 3rd magnetic track demodulating data generative circuit 70.
And, in control circuit 63, circuit as being used for the magnetic data that is read by the second conduit 55b is handled comprises: the treatment circuit 72 that is used for the magnetic data of 75bpi is handled (below be designated as first treatment circuit 72), the treatment circuit 73 (below be designated as second treatment circuit 73), the second magnetic track demodulating data generative circuit 74 and the 4th magnetic track demodulating data generative circuit 75 that are used for the magnetic data of 210bpi is handled.
First treatment circuit 72 and second treatment circuit 73 and the second conduit 55b are connected in parallel.First treatment circuit 72 comprises: the amplifying circuit 76 that 75bpi uses, the filtering circuit 77 that 75bpi uses, differentiating circuit 78 that 75bpi uses and separate and call signal generating circuit 68.Second treatment circuit 73 comprises: the amplifying circuit 79 that 210bpi uses, the filtering circuit 66 that 210bpi uses, differentiating circuit 67 that 210bpi uses and separate and call signal generating circuit 68.
Amplifying circuit 65 is connected with the first conduit 55a and the 3rd conduit 55c respectively, to amplifying from the output signal of 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, to amplifying from the output signal of 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.Particularly, filtering circuit the 66, the 77th, so-called low-pass filter is removed the above frequency component of predetermined frequency.Differentiating circuit 67,78 is connected with filtering circuit 66,77, to carrying out differential from the output signal of filtering circuit 66,77.
Separate and call signal generating circuit 68 and be connected with the outgoing side of differentiating circuit 67,78.This is separated and calls signal generating circuit 68 based on the output signal from differentiating circuit 67,78, and the generation magnetic data is separated wavy the separating of rectangle of calling and called signal.
The first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75 with separate the outgoing side that calls signal generating circuit 68 and be connected.The first magnetic track demodulating data generative circuit 69 is based on calling separating of signal generating circuit 68 output and call signal from separating, generate and the corresponding demodulating data of magnetic data that reads by the first conduit 55a, the 3rd magnetic track demodulating data generative circuit 70 generates and the corresponding demodulating data of magnetic data that is read by the 3rd conduit 55c based on calling separating of signal generating circuit 68 output and call signal from separating.In addition, the second magnetic track demodulating data generative circuit 74 and the 4th magnetic track demodulating data generative circuit 75 generate and the corresponding demodulating data of magnetic data that is read by the second conduit 55b based on calling separating of signal generating circuit 68 output and call signal from separating.
CPU64 is connected with the outgoing side of the first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.CPU64 is based on the demodulating data from the first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and 75 inputs of the 4th magnetic track demodulating data generative circuit, generating solution code data.
As mentioned above, in this embodiment, cross the bottom surface 53a in path 53 if an end 2j of 2 will be blocked in the limit by being pressed in cartoon, the limit makes the back side 2a of card 2 and magnetic head 55 butts that card 2 is moved, and the magnetic data that then is recorded in the second magnetic track 2f is read by the second conduit 55b; If an end 2j of 2 will be blocked by being pressed in bottom surface 53a in the limit, the limit makes the surperficial 2b of card 2 and magnetic head 55 butts that card 2 is moved, and the magnetic data that then is recorded in magnetic stripe 2d is read by the second conduit 55b.That is, in this embodiment, utilize the second conduit 55b to read in the magnetic data of the magnetic data of 75bpi or 210bpi any.
In addition, when the magnetic data of the 75bpi that is recorded in the second magnetic track 2f is read by the second conduit 55b, CPU64 can be based on the demodulating data from 74 inputs of the second magnetic track demodulating data generative circuit, generate suitable decoded data, but can't generate suitable decoded data based on demodulating data from 75 inputs of the 4th magnetic track demodulating data generative circuit.On the other hand, when the magnetic data of the 210bpi that is recorded in the 4th magnetic track 2h is read by the second conduit 55b, CPU64 can be based on the demodulating data from 75 inputs of the 4th magnetic track demodulating data generative circuit, generate suitable decoded data, but can't generate suitable decoded data based on demodulating data from 74 inputs of the second magnetic track demodulating data generative circuit.
In this embodiment, utilize this point, it is to be recorded in the magnetic data of the second magnetic track 2f, still to be recorded in the magnetic data of the 4th magnetic track 2h that CPU64 differentiates the magnetic data that is read by the second conduit 55b.That is, to differentiate based on the decoded data from the signal of the second magnetic track demodulating data generative circuit, 74 inputs be that it is effective effectively, also being based on from the decoded data of the signal of the 4th magnetic track demodulating data generative circuit 75 inputs to CPU64.
Particularly, shown in the flow process as shown in figure 14, CPU64 at first judges whether can be to the magnetic data of 75bpi decode (step S1).That is, CPU64 judges whether can generate suitable decoded data based on the demodulating data from 74 inputs of the second magnetic track demodulating data generative circuit.In step S1, in the time can decoding to the magnetic data of 75bpi, the decoded data that CPU64 differentiates based on the signal of importing from the second magnetic track demodulating data generative circuit 74 is effective (step S2).That is, the CPU64 differentiation is the magnetic data that is recorded in the second magnetic track 2f for the magnetic data that is read by the second conduit 55b.
On the other hand, in step S1, in the time can't decoding to the magnetic data of 75bpi, CPU64 judges whether can be to the magnetic data of 210bpi decode (step S3).That is, CPU64 judges whether can generate suitable decoded data based on the demodulating data from 75 inputs of the 4th magnetic track demodulating data generative circuit.In step S3, in the time can decoding to the magnetic data of 210bpi, the decoded data that CPU64 differentiates based on the signal of importing from the 4th magnetic track demodulating data generative circuit 75 is effective (step S4).That is, the CPU64 differentiation is the magnetic data that is recorded in the 4th magnetic track 2h for the magnetic data that is read by the second conduit 55b.
In addition, in step S3, in the time can't decoding to the magnetic data of 210bpi, CPU64 differentiate for the magnetic data that reads by the second conduit 55b 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 uses to differentiate in step S2 or step S4 and is effective decoded data, the processing of being scheduled to afterwards.In addition, when the magnetic data that is read by magnetic head 55 is the magnetic data of magnetic stripe 2c, CPU64 utilizes based on from the decoded data of the demodulating data of the first magnetic track demodulating data generative circuit, 69 inputs with based on the decoded data from the demodulating data of the 3rd magnetic track demodulating data generative circuit 70 inputs, the processing of being scheduled to.
(the main effect of the manner)
As described above such, in this embodiment, the second conduit 55b of magnetic head 55 can read 210bpi and these 2 kinds of recording densitys of 75bpi.In addition, in this embodiment, in control circuit 63, as the circuit that is used for the magnetic data that is read by the second conduit 55b is handled, comprise: first treatment circuit 72 that is used for the magnetic data of 75bpi is handled, be used for second treatment circuit, 73, the first treatment circuits 72 that the magnetic data of 210bpi is handled and second treatment circuit 73 and the second conduit 55b and be connected in parallel.
Therefore, in this embodiment, if the limit will be blocked an end 2j of 2 and be crossed the bottom surface 53a in path 53 by being pressed in cartoon, the limit makes the back side 2a of card 2 and magnetic head 55 butts that card 2 is moved, then can read the magnetic data of the 75bpi that is recorded in the second magnetic track 2f, carry out demodulation, decoding with control circuit 63 with the second conduit 55b; In addition if an end 2j of 2 will be blocked by being pressed in bottom surface 53a in the limit, the limit makes the surperficial 2b of card 2 and magnetic head 55 butts that card 2 is moved, then can read the magnetic data of the 210bpi that is recorded in magnetic stripe 2d, carry out demodulation, decoding with control circuit 63 with the second conduit 55b.
Promptly, in this embodiment, when blocking 2 thickness direction and observe, even record 75bpi magnetic data the second magnetic track 2f and record 210bpi magnetic data the 4th magnetic track 2h the surface and the back side be configured in position overlapped, but the user moves it conversely by blocking 2, make an end 2j of card 2 be connected to bottom surface 53a, also can read, carry out demodulation, decoding with control circuit 63 with 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 55 couples of back side 2a of 1 magnetic head and surperficial 2b.That is, in this embodiment, can be with fairly simple formation, these two kinds of data of magnetic data of the magnetic stripe 2d of the magnetic data of the magnetic stripe 2c of the back side 2a of such card 2 and surperficial 2b are carried out demodulation, decoding.
In addition, in this embodiment, owing to can read with the magnetic data of 55 couples second magnetic track 2f of 1 magnetic head and these two kinds of data of magnetic data of the 4th magnetic track 2h, carry out demodulation, decoding with control circuit 63, therefore can dispose scanner 56 opposed to each other with magnetic head 55.Therefore, in this embodiment, can read the magnetic data of card 2, and can obtain the image of card 2.
In this embodiment, first treatment circuit 72 comprises: the amplifying circuit 76 that 75bpi uses, the filtering circuit 77 that 75bpi uses, differentiating circuit 78 that 75bpi uses and separate and call signal generating circuit 68, the second treatment circuits 73 and comprise: the amplifying circuit 79 that 210bpi uses, the filtering circuit 66 that 210bpi uses, differentiating circuit 67 that 210bpi uses and separate and call signal generating circuit 68.Therefore, can separate from 2 and call signal generating circuit 68, import 2 kinds of demodulating datas simultaneously to CPU64 via the second magnetic track demodulating data generative circuit 74 or the 4th magnetic track demodulating data generative circuit 75.Thereby, can shorten the processing time of the CPU64 when magnetic data decoded.
(variation of embodiment 3)
In embodiment 3, control circuit 63 also comprises except CPU64: the first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.In addition, for example, control circuit 63 also can not comprise the first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.In this case, CPU64 is based on calling separating of signal generating circuit 68 input and call signal from separating, the generating solution adjusting data, and in addition, CPU64 is based on the demodulating data that generates, generating solution code data.In addition, in this case, CPU64 differentiates that to call the decoded data that the signal generating circuit 68 which separate the signal that calls signal generating circuit 68 inputs be effective based on separating from 2.
In embodiment 3, the second conduit 55b of magnetic head 55 constitutes and can the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi be read, first treatment circuit 72 comprises that amplifying circuit 76, filtering circuit 77 and differentiating circuit 78, the second treatment circuits 73 that 75bpi uses comprise amplifying circuit 79, filtering circuit 66 and the differentiating circuit 67 that 210bpi uses.In addition, for example also can for, the second conduit 55b constitutes and can the magnetic data of 2 kinds of recording densitys beyond 210bpi and/or the 75bpi be read, and first treatment circuit 72 and second treatment circuit 73 comprise amplifying circuit, filtering circuit and the differentiating circuit that can handle the magnetic data of the recording density that can be read by the second conduit 55b.
In addition, also can for, the second conduit 55b constitutes and can the magnetic data of the recording density more than 3 kinds be read, being connected in parallel at the second conduit 55b is useful on the treatment circuit more than 3 of the magnetic data of handling the recording density more than 3 kinds respectively.In addition, also can for, the first conduit 55a and/or the 3rd conduit 55c constitute and can the magnetic data of the recording density more than 2 kinds be read, and being connected in parallel at the first conduit 55a and/or the 3rd conduit 55c is useful on the treatment circuit more than 2 of the magnetic data of handling the recording density more than 2 kinds respectively.
Other embodiments
Above-mentioned mode is an example of optimal way of the present invention, but is not limited thereto, and in the scope that does not change main points of the present invention, can carry out various distortion and implement.
In embodiment 1, in the card reader 1 of the card conveying type that comprises connecting gear 5, use control circuit 23, but control circuit 23 also can 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 that calls signal of separating during the predetermined distance based on card 2, and the recording density of differentiating magnetic data gets final product.
In embodiment 3, in the card reader 51 of hand brush formula, use control circuit 63, but control circuit 63 also can be used for the card reader of impregnated.In addition, control circuit 63 can also be used to the card reader of card conveying type.
In the above-described embodiment, card reader the 1, the 51st is used to the card reader of the card usefulness of the card 2 of the vinyl chloride system of handling, the card 2 of PET system or card 2 made of paper etc.In addition, for example, the magnetic information reading device that adopts structure of the present invention also can be the magnetic information reading device that is used to handle magnetic information recording mediums such as passport.

Claims (15)

1. a magnetic information reading device is characterized in that, comprising:
Magnetic head can read the magnetic data that magnetic stripe write down that is formed at magnetic information recording medium; And
Control circuit is used for the magnetic data that is read by described magnetic head is carried out demodulation, decoding,
Described magnetic head comprise the magnetic data that can read a plurality of recording densitys, the conduit more than 1,
Described control circuit comprises:
A plurality of treatment circuits are connected in parallel with 1 described conduit, and are used for according to each recording density the magnetic data of a plurality of recording densitys being handled; And
Counting circuit directly or via predetermined circuit is connected with the outgoing side of a plurality of described treatment circuits.
2. magnetic information reading device as claimed in claim 1 is characterized in that,
Described control circuit comprises commutation circuit, and described commutation circuit is connected in parallel to a plurality of described treatment circuits at input side, and directly or via predetermined circuit is connected with described counting circuit at outgoing side,
Described counting circuit is based on the signal of input, differentiate the recording density of the magnetic data that described magnetic stripe writes down, switch described commutation circuit, so that input to described counting circuit from the output signal of the described treatment circuit that is used for the magnetic data of the recording density that determines is handled.
3. magnetic information reading device as claimed in claim 2 is characterized in that,
Described control circuit comprises separating between described commutation circuit and described counting circuit and calls signal generating circuit, and described separating called signal generating circuit based on the output signal from described commutation circuit, generate magnetic data and separate wavy the separating of rectangle of calling and call signal,
Described treatment circuit comprises:
Filtering circuit is removed predetermined frequency component from the output signal of described conduit; And
Differentiating circuit carries out differential to the output signal from described filtering circuit.
4. magnetic information reading device as claimed in claim 2 is characterized in that,
In the front of described magnetic information recording medium to the described magnetic stripe of the direction of insertion of described magnetic information reading device, record synchronous the use data of magnetic with the some cycles counter-rotating,
Described counting circuit is based on the described synchronous result that reads with data at described conduit, differentiates the recording density of the magnetic data that described magnetic stripe writes down.
5. magnetic information reading device as claimed in claim 4 is characterized in that,
Comprise the connecting gear that is used to transmit described magnetic information recording medium,
Described counting circuit is based on the frequency of signal of input, differentiates the recording density of the magnetic data that described magnetic stripe writes down.
6. magnetic information reading device as claimed in claim 4 is characterized in that,
Comprise first testing agency and second testing agency, be used to detect the leading section of described magnetic information recording medium to the described magnetic information recording medium of the direction of insertion of described magnetic information reading device,
Described first testing agency is in the direction of insertion of described magnetic information recording medium, is configured in the insertion oral-lateral of described magnetic information recording medium with respect to described second testing agency,
Described counting circuit based on the signal of input, play with described second testing agency from the leading section that detects described magnetic information recording medium with described first testing agency and to detect reversal of magnetism number till the leading section of described magnetic information recording medium, differentiate the recording density of the magnetic data that described magnetic stripe writes down.
7. magnetic information reading device as claimed in claim 4 is characterized in that,
As described magnetic head, comprise that medium inserts detection head and data demodulates head, described medium insertion detection is used to detect described magnetic information recording medium with head and inserts described magnetic information reading device, described data demodulates with the magnetic data that head is used for that described magnetic stripe is write down read, demodulation, decoding
Described counting circuit detects the described synchronous data of using that the described conduit with head reads based on being inserted by described medium, differentiates the recording density of the magnetic data that described magnetic stripe writes down.
8. magnetic information reading device as claimed in claim 7 is characterized in that,
Described control circuit comprises the head commutation circuit, described head commutation circuit is connected in parallel to described medium at input side and inserts 1 described conduit that detection is used head with 1 the described conduit and the described data demodulates of head, and is connected in parallel to a plurality of described treatment circuits at outgoing side.
9. magnetic information reading device as claimed in claim 1 is characterized in that,
Described treatment circuit comprises:
Amplifying circuit amplifies the output signal from described conduit;
Filtering circuit is removed 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
Separate and call signal generating circuit, based on the output signal from described differentiating circuit, the generation magnetic data is separated wavy the separating of rectangle of calling and is called signal.
10. magnetic information reading device as claimed in claim 9 is characterized in that,
Described control circuit a plurality of described separate to call between signal generating circuit and the described counting circuit comprise the demodulating data generative circuit respectively, described demodulating data generative circuit is based on calling described the separating that signal generating circuit exports respectively and call signal from a plurality of described separating, the generating solution adjusting data
Described counting circuit is based on the signal from a plurality of described demodulating data generative circuit inputs, the generating solution code data, and the decoded data of differentiating based on the signal of which the described demodulating data generative circuit input from a plurality of described demodulating data generative circuits is effective.
11. magnetic information reading device as claimed in claim 9 is characterized in that,
Described counting circuit is based on describedly separating described the separating of calling signal generating circuit input and call signal from a plurality of, generating solution adjusting data and decoded data, and differentiate based on described to separate which the described decoded data of separating the signal that calls the signal generating circuit input that calls the signal generating circuit be effective from a plurality of.
12. magnetic information reading device as claimed in claim 1 is characterized in that,
Described magnetic head comprises the described conduit that can read the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi at least,
Described control circuit comprises the described treatment circuit that is used for the described treatment circuit that the magnetic data of 210bpi is handled and is used for the magnetic data of 75bpi is handled,
Wherein, bpi is bit per inch, i.e. bit per inch.
13. magnetic information reading device as claimed in claim 12 is characterized in that,
Described magnetic head comprises: as the described conduit and second conduit that can read to the magnetic data of 210bpi and these 2 kinds of recording densitys of 75bpi, and as described conduit and first conduit and the 3rd conduit that can read the magnetic data of 210bpi,
Described first conduit, described second conduit and described the 3rd conduit with described magnetic information recording medium to the vertical in fact direction of the direction of insertion of described magnetic information reading device, be configured in proper order with this.
14. magnetic information reading device as claimed in claim 13 is characterized in that,
Form described magnetic stripe at the surface and the back side of described magnetic information recording medium respectively,
Described magnetic stripe is along forming with the long side direction of described magnetic information recording medium to the parallel in fact described magnetic information recording medium of the direction of insertion of described magnetic information reading device,
Described magnetic stripe recording at the back side that is formed at described magnetic information recording medium has the magnetic data of first magnetic track, second magnetic track and these 3 magnetic tracks of the 3rd magnetic track, the magnetic data that 210bpi is arranged at described first track recording, the magnetic data that 75bpi is arranged at described second track recording, the magnetic data that 210bpi is arranged at described the 3rd track recording
Described first magnetic track, described second magnetic track and described the 3rd magnetic track from an end side of the short side direction of the vertical in fact described magnetic information recording medium of the long side direction of described magnetic information recording medium, with this arranged in order,
Described magnetic stripe recording on the surface that is formed at described magnetic information recording medium has the magnetic data of 1 magnetic track of the 4th magnetic track,
At described the 4th track recording the magnetic data of 210bpi is arranged,
When the thickness direction of described magnetic information recording medium is observed, at least a portion of described the 4th magnetic track and described second magnetic track are overlapping.
15. magnetic information reading device as claimed in claim 14 is characterized in that,
Comprise image fetching unit, described image fetching unit is to be configured with the opposed mode of described magnetic head, to obtain the image of described magnetic information recording medium.
CN201010624745.7A 2010-01-04 2010-12-31 Magnetic information reading device Expired - Fee Related CN102117622B (en)

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JP5670056B2 (en) 2015-02-18
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