CN104751091B - Magnetic information reading device - Google Patents

Magnetic information reading device Download PDF

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Publication number
CN104751091B
CN104751091B CN201510127780.0A CN201510127780A CN104751091B CN 104751091 B CN104751091 B CN 104751091B CN 201510127780 A CN201510127780 A CN 201510127780A CN 104751091 B CN104751091 B CN 104751091B
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magnetic
data
circuit
conduit
card
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CN201510127780.0A
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CN104751091A (en
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栗林郁郎
濑川武志
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Nidec Sankyo Corp
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Nidec Sankyo Corp
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Abstract

The present invention provides a kind of magnetic information reading device, and the magnetic data of its magnetic information recording medium that can deviate international standard or JIS standards to the packing density of magnetic data is demodulated, decoded, and can improve versatility.Magnetic information reading device includes：The magnetic head (3) that the magnetic data that the magnetic stripe for being formed at magnetic information recording medium is recorded can be read out；And the control circuit (23) for being demodulated, decoding to the magnetic data read by magnetic head (3).Magnetic head (3) includes conduit (3a), (3b), (3c) that can be read out to the magnetic data of multiple packing densitys, and control circuit (23) includes：The multiple process circuits (26) handled according to each packing density the magnetic data of multiple packing densitys, (27) are connected in parallel and are used for 1 conduit (3a) ((3b), (3c))；And counting circuit (24) that is direct or being connected via predetermined circuit with the outlet side of multiple process circuits (26), (27).

Description

Magnetic information reading device
The application be Application No. 201010624745.7, the applying date be on December 31st, 2010, it is entitled " magnetic believe The divisional application of the application for a patent for invention of breath reading device ".
Technical field
The present invention relates to the magnetic information reading device for being read out to the magnetic data recorded in magnetic information recording medium.
Background technology
The record format of magnetic card with magnetic stripe is provided by international standard or JIS standards (Japanese Industrial Standards).It is used as symbol The magnetic card of the standard is closed, as shown in Figure 4, overleaf 2a and surface 2b two faces are circulated extensively in Japan and are formed with magnetic Bar 2c, 2d card 2.According to JIS standards " JISX6302-2 ", in back side 2a magnetic stripe 2c is formed at, record has the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g this 3 magnetic tracks magnetic data, in surface 2b magnetic stripe 2d is formed at, record has magnetic The magnetic data of road 2h (being designated as the 4th magnetic track 2h below) this 1 magnetic track.In addition, according to above-mentioned JIS standards, recording in the first magnetic track The packing density (more specifically average record density) of 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h magnetic data is 210bpi, record is 75bpi in the packing density (more specifically average record density) of the second magnetic track 2f magnetic data.
If in addition, as shown in figure 4, setting from the one end 2j of the short side direction of card 2 to the distance of the first magnetic track 2e one end Distance for L1, from one end 2j to the first magnetic track 2e other end is L2, from one end 2j to the second magnetic track 2f one end Distance is L3, the distance from one end 2j to the second magnetic track 2f other end is L4, from one end 2j to the one of the 3rd magnetic track 2g The distance at end is L5, the distance from one end 2j to the 3rd magnetic track 2g other end is L6, from one end 2j to the 4th magnetic track 2h One end distance be L7, the distance from one end 2j to the 4th magnetic track 2h other end be L8, then according to JIS standards, distance L1~L8 for example sets 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, in such setpoint distance L1~L8, when from the thickness direction of card 2, one of the 4th magnetic track 2h Distribution put with the second magnetic track 2f gamut substantially overlapping position.
In the past, recorded as the magnetic data to the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g this 3 magnetic tracks in magnetic A kind of magnetic card reader that bar 2c card 2 is read out, it is known to magnetic card reader, its be mounted with the first magnetic track 2e, The magnetic head for 3 conduits that second magnetic track 2f and the 3rd magnetic track 2g are abutted respectively (referring for example to patent document 1).
In the magnetic card reader that the patent document 1 is disclosed, for example, magnetic data is demodulated and decoded as being used for Reading circuit, is being connected to 210bpi's with the first magnetic track 2e conduits abutted and with the 3rd magnetic track 2g conduits abutted Reading circuit, 75bpi reading circuit is being connected with the second magnetic track 2f conduits abutted.In addition, being used with contact a kind of Magnetic card reader, its magnetic head loaded has 1 groove that the magnetic stripe 2d for the magnetic data for being used for having 1 magnetic track to record is read out Road.In the magnetic card reader, as the reading circuit for being demodulated, decoding to magnetic data, what is abutted with magnetic stripe 2d Conduit is connected with 210bpi reading circuit.
Prior art literature
Patent document 1：Japanese Patent Laid-Open 2000-306211 publications
The content of the invention
The problem to be solved in the present invention
In recent years, there is variation in the magnetic information recording mediums such as the card commercially circulated, commercially have also appeared not Meet the magnetic information recording medium of international standard or JIS standards.For example, commercially occurring in that：Record is in the first magnetic track 2e, the The packing density of two magnetic track 2f and the 3rd magnetic track 2g magnetic data is all 210bpi magnetic information recording medium；And record the The packing density of one magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data is all 75bpi magnetic information recording medium.
However, patent document 1 disclose card reader in, due to the first magnetic track 2e conduits abutted and with the 3rd magnetic The conduit that road 2g is abutted is connected to 210bpi reading circuit, is connected with the second magnetic track 2f conduits abutted 75bpi reading circuit, therefore, it is difficult to the magnetic that the packing density of the magnetic data to each magnetic track deviates international standard or JIS standards The magnetic data of information recording carrier suitably demodulate, decoded.Therefore, in the case of conventional card reader, in order to so Standard outside the magnetic data of magnetic information recording medium be demodulated, decode, it is necessary to change reading circuit, it is believed as the magnetic The special card reader of recording medium is ceased, the versatility of card reader declines.
In addition, card 2 is that overleaf 2a and surface 2b two sides is formed with magnetic stripe 2c, 2d card 2 like that described above, from During the thickness direction observation of card 2, the part configuration that record has the 4th magnetic track 2h of 210bpi magnetic data has with record Second magnetic track 2f of 75bpi magnetic data gamut substantially overlapping position, when handling such card 2, , it is necessary to for the magnetic head of the magnetic stripe for reading back side 2a 2c magnetic data and for reading surface 2b's in conventional card reader The magnetic head of magnetic stripe 2d magnetic data.Therefore, card reader can be maximized, and the cost of card reader can also be improved in addition.
Therefore, it is an object of the invention to provide a kind of magnetic information reading device, it can be to the packing density of magnetic data The magnetic data for deviateing the magnetic information recording medium of international standard or JIS standards is demodulated, decoded, and can improve versatility.Separately Outside, can be with fairly simple composition to magnetic information recording medium it is an object of the invention to provide a kind of magnetic information reading device Surface and the magnetic data at the back side be demodulated, decode, wherein, the magnetic information recording medium is overleaf formed with the two sides on surface There is magnetic stripe, when from the thickness direction from magnetic information recording medium, record has the magnetic track of the magnetic data of different packing densitys On surface and back side configuration in overlapping position.
Method for solving problem
In order to solve the above problems, magnetic information reading device of the invention is characterised by, including：Magnetic head, can be to shape The magnetic data recorded into the magnetic stripe in magnetic information recording medium is read out；And control circuit, for by head read Magnetic data be demodulated, decode, magnetic head include can read magnetic data, the conduit of more than 1 of multiple packing densitys, control Circuit processed includes：Multiple process circuits, are connected in parallel with 1 conduit, and are used for according to each packing density to multiple records The magnetic data of density is handled；And counting circuit, directly or via the output of predetermined circuit and multiple process circuits Side is connected.
The present invention magnetic information reading device in, magnetic head include can read multiple packing densitys it is magnetic data, 1 Conduit above, control circuit includes multiple process circuits, and multiple process circuits are connected in parallel with 1 conduit, and for pressing The magnetic data of multiple packing densitys is handled according to each packing density.Therefore, in the present invention, even if a certain magnetic information is remembered The magnetic data that the magnetic stripe of the packing density for the magnetic data that the magnetic stripe of recording medium is recorded and other magnetic information recording mediums is recorded Packing density it is different, the magnetic data of the different packing density can also be read with 1 conduit of magnetic head, is entered with control circuit Row demodulation, decoding.I.e., in the present invention it is possible to 1 conduit to meeting the magnetic of the packing density of international standard or JIS standards The magnetic data of the packing density of data and deviation international standard or JIS standards is read out, and is demodulated, solved with control circuit Code.Therefore, in the magnetic information reading device of the present invention, international standard can be deviateed to the packing density of magnetic data or JIS is marked The magnetic data of accurate magnetic information recording medium is demodulated, decoded, and can improve versatility.
In addition, in the present invention, magnetic head includes that magnetic data, the conduit of more than 1 of multiple packing densitys can be read, Circuit is controlled to include multiple process circuits, multiple process circuits are connected in parallel with 1 conduit, and for recording close according to each Spend and the magnetic data of multiple packing densitys is handled.Therefore, in the present invention, user is by by the anti-mistake of magnetic information recording medium Come and carry out predetermined operation, can be with 1 magnetic head to the magnetic data of the magnetic stripe on the surface of magnetic information recording medium and the back side Both data of the magnetic data of magnetic stripe are read out, and are demodulated, decoded with control circuit, wherein, magnetic information recording medium The packing density for the magnetic data that the magnetic track of the magnetic stripe on surface is recorded, the magnetic track institute with the magnetic stripe at the back side of magnetic information recording medium The packing density of the magnetic data of record is different, and when from the thickness direction from magnetic information recording medium, these magnetic tracks are in table Face and back side configuration are in overlapping position.I.e., in the present invention, can be with fairly simple composition, to such magnetic information recording The magnetic data of medium, surface magnetic stripe and the magnetic data of the magnetic stripe at the back side both data are demodulated, decoded.
In the present invention it is preferred that control circuit includes switching circuit, the switching circuit is connected in parallel in input side Multiple process circuits, and counting circuit is connected with directly or via predetermined circuit in outlet side, counting circuit is based on defeated The signal entered, differentiates the packing density for the magnetic data that magnetic stripe is recorded, switching circuit is switched over so that from for sentencing The output signal for the process circuit that the magnetic data for the packing density not gone out is handled is inputted to counting circuit.If so constituting, Then even if the outlet side of multiple process circuits is connected via predetermined circuit with counting circuit, but carry out magnetic data demodulation, During decoding, the process circuit that only can also be handled the magnetic data from the packing density for being recorded to magnetic stripe it is defeated Go out signal to input to counting circuit.It therefore, it can simplify the processing of counting circuit when being demodulated, decoding to magnetic data, can With shorten magnetic data is demodulated, decode when counting circuit processing time.
In the present invention it is preferred that control circuit calls signal generation between switching circuit and counting circuit including solution Circuit, the solution calls the square wave that signal generating circuit is called based on the output signal from switching circuit, generation magnetic data solution The solution call signal of shape, process circuit includes：Filter circuit, predetermined frequency component is removed from the output signal of conduit；And Differential circuit, differential is carried out to the output signal from filter circuit.If so constituting, include even in control circuit multiple During process circuit, signal generating circuit generation solution call signal can also be called with common solution.It therefore, it can simplify control electricity The structure on road.
In the present invention, it is preferred that magnetic stripe from magnetic information recording medium to the direction of insertion of magnetic information reading device Front, record is magnetic the synchronization data that are inverted with some cycles, and counting circuit is based on the synchronization data in conduit Reading result, differentiate the packing density of magnetic data that magnetic stripe is recorded.If so constituting, even if multiple process circuits is defeated Go out side to be connected with counting circuit via predetermined circuit, but when carrying out the demodulation of valid data part of magnetic data, decoding, The output signal for the process circuit that only magnetic data from the packing density for being recorded to magnetic stripe can be handled is defeated Enter to counting circuit.It therefore, it can simplify the place of the counting circuit when valid data part of magnetic data is demodulated, decoded Reason, can shorten the processing time of the counting circuit when valid data part of magnetic data is demodulated, decoded.If in addition, So constitute, then when by the packing density of the magnetic data recorded in counting circuit differentiation magnetic stripe, it is possible to use magnetic is with one The reading result of the synchronization data of fixed cycle reversion, therefore easily differentiate the packing density of magnetic data.Therefore, it is possible to which simplification is sentenced The processing of counting circuit during the packing density of other magnetic data, can shorten the counting circuit during packing density for differentiating magnetic data Processing time.
In the present invention it is preferred that magnetic information reading device includes the conveyer for being used to transmit magnetic information recording medium Structure, the frequency of signal of the counting circuit based on input differentiates the packing density for the magnetic data that magnetic stripe is recorded.If so constituting, If then transmitting magnetic information recording medium using transport mechanism with approximately constant speed, it can be easier and be fitted with counting circuit Locality differentiates the packing density for the magnetic data that magnetic stripe is recorded.
In the present invention, or, magnetic information reading device includes the first testing agency and the second testing agency, is used for Detect direction of insertion, magnetic information recording medium leading section of the magnetic information recording medium to magnetic information reading device, the first inspection Direction of insertion of the mechanism in magnetic information recording medium is surveyed, the insertion in magnetic information recording medium is configured relative to the second testing agency Mouthful side, counting circuit based on input it is signal, from being detected the leading section of magnetic information recording medium with the first testing agency Reversal of magnetism number untill the leading section of magnetic information recording medium is detected with the second testing agency, differentiates what magnetic stripe was recorded The packing density of magnetic data.In this case, even if magnetic information recording medium is not moved with approximately constant speed, it can also use Counting circuit is easier and suitably differentiates the packing density for the magnetic data that magnetic stripe is recorded.
In the present invention it is preferred that for magnetic information reading device, being used as magnetic head, including medium insertion detection head With data demodulation head, medium insertion detection head is used to detect that magnetic information recording medium insertion magnetic information reads dress Put, the magnetic data that data solution call header is used to record magnetic stripe is read out, demodulates, decoded, counting circuit is based on by being situated between Matter inserts the synchronization data that detection is read with the conduit on head, differentiates the packing density for the magnetic data that magnetic stripe is recorded.If this Sample is constituted, then before magnetic data is read with data solution call header, reliably can be switched over switching circuit.
In the present invention it is preferred that control circuit include head switching circuit, the head switching circuit in input side simultaneously Connection is connected with 1 conduit on medium insertion detection head and 1 conduit of data solution call header, and in parallel in outlet side It is connected with multiple process circuits.It is multiple with being connected in parallel in medium insertion detection with 1 conduit on head if so constituting Process circuit and compared when 1 conduit of data solution call header is connected in parallel to multiple process circuits, can be with simplify control The structure of circuit.
In the present invention, or, process circuit includes：Amplifying circuit, puts to the output signal from conduit Greatly；Filter circuit, predetermined frequency component is removed from the output signal of amplifying circuit；Differential circuit, to from filter circuit Output signal carries out differential；And solution calls signal generating circuit, based on the output signal from differential circuit, magnetic data is generated The wavy solution call signal of rectangle that solution is called.In such a case, it is possible to from multiple solutions call signal generating circuit directly or Person inputs multiple signals simultaneously via predetermined circuit to counting circuit.It therefore, it can shorten and magnetic data be demodulated, decoded When or counting circuit when being decoded to magnetic data processing time.
In the present invention, for example, control circuit calls bag between signal generating circuit and counting circuit in multiple solutions respectively Demodulating data generative circuit is included, the demodulating data generative circuit from multiple solutions based on calling the solution that signal generating circuit is exported respectively Call signal, generates demodulating data, counting circuit is based on the signal inputted from multiple demodulating data generative circuits, generation solution yardage According to, and differentiate the decoding based on the signal inputted from which of multiple demodulating data generative circuits demodulating data generative circuit Data are effective.In addition, in the present invention, for example, counting circuit can also be based on calling signal generating circuit from multiple solutions The solution call signal of input, generates demodulating data and decoding data, and differentiation is based on calling signal generating circuit from multiple solutions Which of the solution decoding data of signal of calling signal generating circuit to input be effective.
In the present invention it is preferred that magnetic head includes the magnetic number that this 2 kinds of packing densitys of 210bpi and 75bpi at least can be read According to conduit, control circuit includes the process circuit and magnetic data for handling 75bpi for being used to handle 210bpi magnetic data Process circuit.The packing density of the magnetic data recorded by the magnetic information recording medium commercially occurred is in general more For 210bpi and 75bpi, if therefore so constitute, magnetic head can be simplified and the structure of circuit is controlled, magnetic information is improved and read The versatility of device.If in addition, so constituting, magnetic of 1 magnetic head to magnetic information recording medium, surface magnetic stripe can be used Both data of the magnetic data of the magnetic stripe at data and the back side are read out, and are demodulated, decoded with control circuit, wherein, the magnetic Information recording carrier the track recording 210bpi of the magnetic stripe on the surface of magnetic information recording medium magnetic data, in magnetic information recording The track recording 75bpi of the magnetic stripe at the back side of medium magnetic data, and when from the thickness direction from magnetic information recording medium, These magnetic tracks are on surface and back side configuration in overlapping position.
In the present invention, as conduit, the magnetic head such as magnetic including this 2 kinds of packing densitys of 210bpi and 75bpi can be read Second conduit of data, and including the first conduit and the 3rd conduit of the magnetic data that 210bpi can be read, the first conduit, second Conduit and the 3rd conduit with the approximately perpendicular direction of the direction of insertion of magnetic information recording medium to magnetic information reading device, with this It is arranged in order.
In the present invention, for example, being formed with magnetic stripe at the surface of magnetic information recording medium and the back side respectively, magnetic stripe along with The long side direction of the approximately parallel magnetic information recording medium of direction of insertion of magnetic information recording medium to magnetic information reading device and Formed, the magnetic stripe recording at the back side for being formed at magnetic information recording medium has the first magnetic track, the second magnetic track and the 3rd magnetic track this 3 The magnetic data of magnetic track, the first magnetic track, the second magnetic track and the 3rd magnetic track are from the long side direction near normal with magnetic information recording medium The one end side of short side direction of magnetic information recording medium be arranged in order with this, have 210bpi magnetic number in the first track recording According to, have 75bpi magnetic data in the second track recording, have 210bpi magnetic data in the 3rd track recording, be formed at magnetic letter Ceasing the magnetic stripe recording on the surface of recording medium has the magnetic data of 1 magnetic track of the 4th magnetic track, has 210bpi in the 4th track recording Magnetic data, when from the thickness direction from magnetic information recording medium, at least a portion of the 4th magnetic track and the second magnetic track weight It is folded.
In the present invention, magnetic information reading device is for example including image fetching unit, the image fetching unit and magnetic head pair Put and configure, obtain the image of magnetic information recording medium.In the present invention, due to that can be situated between with 1 magnetic head to magnetic information recording The magnetic data of matter, surface magnetic stripe and the magnetic data of the magnetic stripe at the back side both data are read out, and are carried out with control circuit Demodulation, decoding, wherein, the magnetic data of the track recording of the magnetic stripe on the surface in magnetic information recording medium of magnetic information recording medium Packing density, different from the packing density of the magnetic data of the track recording of the magnetic stripe at the back side of magnetic information recording medium, and When from the thickness direction from magnetic information recording medium, in overlapping position, therefore these magnetic tracks configure on surface and the back side It can be opposed to configure image fetching unit with magnetic head.Thus, in the present invention, can be right if configuration image fetching unit The magnetic data of magnetic information recording medium is read out, and obtains the image of magnetic information recording medium.
The effect of invention
As described above, in the magnetic information reading device of the present invention, international mark can be deviateed to the packing density of magnetic data The magnetic data of the magnetic information recording medium of accurate or JIS standards is demodulated, decoded, and can improve versatility.In addition, in the present invention Magnetic information reading device in, the magnetic data at the surface of magnetic information recording medium and the back side can be carried out with fairly simple composition Demodulation, decoding, wherein, the magnetic information recording medium is overleaf formed with magnetic stripe with the two sides on surface, is situated between from magnetic information recording During the thickness direction observation of matter, the magnetic track that record has the magnetic data of different packing densitys is configured overlapping on surface and the back side Position.
Brief description of the drawings
Fig. 1 is the vertical view for illustrating the brief configuration of the magnetic information reading device involved by embodiments of the present invention 1 Figure.
Fig. 2 is the side view for illustrating the brief configuration of the magnetic information reading device from Fig. 1 E-E directions.
Fig. 3 is the front view for illustrating the brief configuration of the magnetic information reading device from Fig. 1 F-F directions.
Fig. 4 is the figure for illustrating the magnetic information recording medium of magnetic information reading device processing as shown in Figure 1, and (A) is The figure at the back side of magnetic information recording medium is represented, (B) is the figure on the surface for representing magnetic information recording medium.
Fig. 5 is the block diagram for illustrating the brief configuration of the control circuit of the magnetic information reading device shown in Fig. 1.
Fig. 6 is for illustrating input to the figure of the waveform of the solution call signal of the CPU shown in Fig. 5.
Fig. 7 is for illustrating the brief of the control circuit of the magnetic information reading device involved by embodiments of the present invention 2 The block diagram of structure.
Fig. 8 is the figure for illustrating the method for discrimination of the packing density of the magnetic data in the CPU shown in Fig. 7.
Fig. 9 is the stereogram of the magnetic information reading device involved by embodiments of the present invention 3.
Figure 10 is the figure for illustrating the configuration relation from the magnetic head, scanner and liner roll in Fig. 9 G-G directions.
Figure 11 is comparable to the sectional view of the magnetic information reading device in Figure 10 H-H sections.
Figure 12 is for illustrating magnetic information recording medium and the configuration relation of magnetic head by the card passage path shown in Fig. 9 Figure, (A) is the figure for illustrating the back side of magnetic information recording medium and the configuration relation of magnetic head, and (B) is to be used to illustrate that magnetic is believed Cease the figure of the surface of recording medium and the configuration relation of magnetic head.
Figure 13 is the block diagram for illustrating the brief configuration of the control circuit of the magnetic information reading device shown in Fig. 9.
Figure 14 is an example of the flow for the effective judgement control for representing the decoding data in the CPU shown in Figure 13 Flow chart.
Label declaration
1st, 51 card reader (magnetic information reading device)
2 cards (magnetic information recording medium)
The 2a back sides
2b surfaces
2c, 2d magnetic stripe
2j one ends
3 magnetic heads (data solution call header)
The conduits of 3a first (conduit)
The conduits of 3b second (conduit)
The conduits (conduit) of 3c the 3rd
4 magnetic heads
5 transport mechanisms
6 insert ports
9 fore heads (magnetic head, medium insertion detection head, the first testing agency)
The conduits of 9a first (conduit)
The conduits of 9b second (conduit)
The conduits (conduit) of 9c the 3rd
10 testing agencies (the first testing agency, the second testing agency)
11 testing agencies (the second testing agency)
23rd, 43,63 control loop
24th, 64 CPU (counting circuit)
26th, 72 first process circuit (process circuit)
27th, 73 second processing circuit (process circuit)
28 switching circuits
29th, 68 solutions call signal generation loop
31st, 33,66,77 filter circuit
32nd, 34,67,78 differential loop
46 head switching circuits
55 magnetic heads
The conduits of 55a first
The conduits of 55b second (conduit)
The conduits of 55c the 3rd
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)
76th, 79 amplifying return circuit
The long side direction of X magnetic information recording mediums
The direction of insertion of X1 magnetic information recording mediums
The short side direction of Y magnetic information recording mediums
The thickness direction of Z magnetic information recording mediums
Embodiment
Below, referring to the drawings, embodiments of the present invention are illustrated.
Embodiment 1
(brief configuration of magnetic information reading device)
Fig. 1 is the vertical view for illustrating the brief configuration of the magnetic information reading device 1 involved by embodiments of the present invention 1 Figure.Fig. 2 is the side view for illustrating the brief configuration of the magnetic information reading device 1 from Fig. 1 E-E directions.Fig. 3 is to be used for Illustrate the front view of the brief configuration of magnetic information reading device 1 from Fig. 1 F-F directions.Fig. 4 is to be used to illustrate as shown in Figure 1 Magnetic information reading device 1 handle magnetic information recording medium 2 figure, (A) is the back side 2a for representing magnetic information recording medium 2 Figure, (B) is the figure for the surface 2b for representing magnetic information recording medium 2.
The magnetic information reading device 1 of the embodiment is carried out to recording the magnetic data for blocking 2 in magnetic information recording medium The card reader read, decoded to magnetic data.Therefore, the magnetic information reading device 1 of the embodiment is designated as " Card Reader below Device 1 ".The card reader 1 as shown in FIG. 1 to 3, including：For the magnetic head 3,4 being read out to the magnetic data recorded in card 2；With And the transport mechanism 5 for the transfer card 2 in card reader 1.In the inside of card reader 1, as shown in Fig. 2 being formed with linear Card transmitting path 7, is transmitted to the card 2 inserted from insert port 6.
In addition, card reader 1 includes：For by the gate part 8 of the side closure of insert port 6 one of card transmitting path 7；For right Card 2 inserts the fore head 9 that card reader 1 is detected；And 4 inspections for being detected to position of the card 2 in card reader 1 Survey mechanism 10~13.Also, card reader 1 includes：For the IC with IC contacts handled the card 2 for being fixed with IC chip Contact block 14；And the communication antenna 15 for being handled the card 2 for being built-in with communication antenna.
In this embodiment, the X-direction shown in Fig. 1 etc. carrys out transfer card 2.Specifically, to X1 directions insertion card 2 simultaneously Sucked, to X2 directions discharge card 2.That is, X1 directions are the direction of insertion of card 2.In addition, X-direction is inserted in card reader 1 The long side direction of card 2.In addition, with the approximately perpendicular Y-direction of X-direction be insert card reader 1 in card 2 short side direction.
Card 2 is, for example, the card of the vinyl chloride for the rectangle that thickness is 0.7~0.8mm or so.It is formed with the back side 2a of card 2 Record has the magnetic stripe 2c of magnetic data, and being formed with record in the surface 2b of card 2 has the magnetic stripe 2d of magnetic data.Magnetic stripe 2c, 2d are along card 2 Long side direction formed.
The magnetic data for having the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g this 3 magnetic tracks is recorded in magnetic stripe 2c.First Magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g, are arranged in order from the one end 2j sides of the short side direction of card 2 with this.In magnetic Article 2d record has the magnetic data of the 4th magnetic track 2h this 1 magnetic track.
In the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h, for example, remembered with F2F recording mode Record magnetic data.In addition, card 2 in direction of insertion from magnetic stripe 2c front end (X1 directions end) 2k the predetermined scope apart from L11, The preamble portion 2m for the synchronization data inverted with some cycles that are magnetic as record.That is, recorded in preamble portion 2m There is synchronous position " 0 ".Equally, card 2 direction of insertion from magnetic stripe 2d front end (X1 directions end) 2n it is predetermined apart from L12 Scope, be magnetic the preamble portion 2p of the synchronization data inverted with some cycles as record, in preamble portion 2p Record has synchronous position " 0 ".In addition, it is by JIS standards " JISX6302- to be provided with preamble portion 2m, 2p in magnetic stripe 2c, 2d As defined in 2 ", according to the JIS standards, L11 is 7.44 (mm), and L12 is 5 (mm).
In this embodiment, record is 210bpi or 75bpi in the packing density of the first magnetic track 2e magnetic data, note To record in the packing density of the second magnetic track 2f magnetic data be 210bpi or 75bpi, records the magnetic data in the 3rd magnetic track 2g Packing density is 210bpi or 75bpi, record the 4th magnetic track 2h magnetic data packing density be 210bpi or 75bpi.That is, according to the card 2 of insertion card reader 1, record is different sometimes in the packing density of each magnetic track 2e~2h magnetic data. For example, in the card 2 of insertion card reader 1, having in the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h All record has the card 2 of 210bpi magnetic data, also has in the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic Road 2h records the card 2 of 75bpi magnetic data.
Alternatively, it is also possible to fix IC chip in the surface 2b of card 2.Alternatively, it is also possible to the antenna to the built-in communication of card 2. In addition, card 2 can also be thickness for 0.18~0.36mm or so PET (polyethylene terephthalate) cards or make a reservation for Paper card of thickness etc..
Magnetic head 3 and magnetic head 4 clip card transmitting path 7, configure opposite one another.In addition, magnetic head 3 and magnetic head 4 are configured to So that magnetic head 3 is abutted with the back side 2a of card 2 magnetic stripe 2c, magnetic head 4 is abutted with the surface 2b of card 2 magnetic stripe 2d.In addition, magnetic head 3 And magnetic head 4 is configured in the close X2 directions side of card transmitting path 7.
Magnetic head 3 includes 3 conduits, namely for the first groove being read out to the magnetic data recorded in the first magnetic track 2e Road 3a (reference picture 5), for the magnetic data recorded in the second magnetic track 2f is read out the second conduit 3b (reference picture 5), with And the 3rd conduit 3c (reference picture 5) for being read out to the magnetic data recorded in the 3rd magnetic track 2g.First conduit 3a, second Conduit 3b and the 3rd conduit 3c are arranged in order with this in the Y direction.In addition, the first conduit 3a, the second conduit 3b and the 3rd conduit 3c The magnetic data of 210bpi and 75bpi this 2 kinds of packing densitys can be read out.That is, the first conduit 3a of the embodiment, Two conduit 3b and the 3rd conduit 3c are the conduits that can be read out to the magnetic data of multiple packing densitys.
Magnetic head 4 includes 1 conduit (not shown), for being read out to the magnetic data recorded in the 4th magnetic track 2h.The groove Road can be read out to the magnetic data of 210bpi and 75bpi this 2 kinds of packing densitys.That is, the conduit of the magnetic head 4 of the embodiment It is the conduit that the magnetic data of multiple packing densitys can be read out.
Transport mechanism 5 includes：The transfer roller 17 of simultaneously transfer card 2 is abutted with card 2；And the motor of driving transfer roller 17 18.Transfer roller 17 links with motor 18 via predetermined gear train.Configure transfer roller 17, make its in the Y direction with magnetic head 3,4 It is adjacent.The encoder 19 of rotating speed for detecting motor 18 is installed to motor 18.Encoder 19 is for example by discoideus Slit plate and the sensor of optical profile type are constituted.In this embodiment, card 2 utilizes transport mechanism 5 with constant in card reader 1 Speed is transmitted.
Gate part 8 is configured in the X2 directions side of card transmitting path 7.Solenoid 20, lock are linked with the gate part 8 Door part 8 is using the power of solenoid 20, and such as Fig. 3's is shown in solid, and card transmitting path 7 is opened, and the two point such as Fig. 3 is drawn in addition Shown in line, card transmitting path 7 is closed.
Fore head 9 is configured in the vicinity of insert port 6.In addition, the magnetic that fore head 9 is configured to make it with the back side 2a of card 2 Bar 2c is abutted.In addition, the fore head 9 of the embodiment includes 1 conduit for being used to detect the presence of magnetic stripe 2c.
Testing agency 10~13 is, for example, the sensor for the optical profile type for including light-emitting component and light receiving element, detection card 2 Long side direction end.As shown in figure 1, testing agency 10 is configured at the X2 directions end of card transmitting path 7, testing agency 11 matches somebody with somebody Put before the magnetic head 3,4 of the direction of insertion of card 2, testing agency 12 is configured after the magnetic head 3,4 of the direction of insertion of card 2 Face, testing agency 13 is configured at the X1 directions end of card transmitting path 7.
IC contact blocks 14 are configured in the X1 directions side of card transmitting path 7.IC contact blocks 14 connect with predetermined link mechanism Knot, slides and moves up and down in X-direction.IC contact blocks 14 abut IC contacts and the IC chip of card 2, separately by moving up and down Outside, IC contacts are made to be left from the IC chip of card 2.Communication antenna 15 is configured in the X1 directions side of card transmitting path 7.
(structure of control circuit)
Fig. 5 is the block diagram for illustrating the brief configuration of the control circuit 23 of the magnetic information reading device 1 shown in Fig. 1.Fig. 6 It is for illustrating input to the figure of the waveform of the solution call signal of the CPU24 shown in Fig. 5.In addition, in Figure 5, it is illustrated that with magnetic The structure of the reading control correlation of magnetic data involved by first 3.
Card reader 1 includes control circuit 23, for being demodulated, decoding to the magnetic data read by magnetic head 3,4.Such as Fig. 5 It is shown, it is connected with magnetic head 3 with control circuit 23.Specifically, the first conduit 3a of magnetic head 3, the second conduit 3b and the 3rd conduit 3c is connected in parallel with control circuit 23.In addition, being also associated with the conduit of magnetic head 4 with control circuit 23.
Circuit 23 is controlled to include the CPU24 as counting circuit.In addition, in control circuit 23, as by the The circuit that the magnetic data that one conduit 3a is read is handled, including：Amplifying circuit 25, for the magnetic data to 210bpi at Process circuit 26 (being designated as the first process circuit 26 below), the process circuit handled for the magnetic data to 75bpi of reason 27 (being designated as second processing circuit 27 below), switching circuit 28 and solution call signal generating circuit 29.In addition, in control electricity In road 23, as the circuit to being handled by the second conduit 3b magnetic datas read, including：Amplifying circuit 25, first Process circuit 26, second processing circuit 27, switching circuit 28 and solution call signal generating circuit 29；As for by The circuit that the magnetic data that three conduit 3c are read is handled, including：Amplifying circuit 25, the first process circuit 26, second processing electricity Road 27, switching circuit 28 and solution call signal generating circuit 29.
Amplifying circuit 25 is connected with the first conduit 3a, the second conduit 3b and the 3rd conduit 3c respectively, to from the first conduit 3a, the second conduit 3b and the 3rd conduit 3c output signal are amplified.
The outlet side of first process circuit 26 and second processing circuit 27 and amplifying circuit 25 is connected in parallel.First processing electricity Road 26 includes 210bpi filter circuit 31 and 210bpi differential circuit 32, and second processing circuit 27 is used including 75bpi Filter circuit 33 and 75bpi differential circuit 34.Filter circuit 31,33 is connected with the outlet side of amplifying circuit 25, from putting The output signal of big circuit 25 removes predetermined frequency component.Specifically, filter circuit 31,33 is so-called LPF Device, removes frequency component more than predetermined frequency.Differential circuit 32,34 is connected with filter circuit 31,33, to from filtered electrical The output signal on road 31,33 carries out differential.
In the input side of switching circuit 28, the first process circuit 26 and second processing circuit 27 are connected in parallel to.In addition, The outlet side of switching circuit 28, is connected with solution and calls signal generating circuit 29.Switching circuit 28 is believed based on the control from CPU24 Number, come to calling with solution signal generating circuit 29 to be connected which in the first process circuit 26 or second processing circuit 27 Switch over.That is, switching circuit 28 is realized any one in the first process circuit 26 or second processing circuit 27 and demodulation The function of being connected with signal generating circuit 29.In addition, the switching method on switching circuit 28 will be aftermentioned.
Solution calls the outlet side of signal generating circuit 29 to be connected with CPU24.Solution calls signal generating circuit 29 to be based on coming from The output signal of switching circuit 28, the wavy solution call signal of the rectangle that calls of generation magnetic data solution.Specifically, solution calls letter The wavy solution call signal of number generative circuit 29 generation rectangle, the wavy solution call signal of the rectangle by transport mechanism 5 to be carried out Certain transfer rate of card 2 and cycle for being determined of the packing density of magnetic data be changed.
For example, being the signal and magnetic data of the magnetic data based on 210bpi in the output signal from switching circuit 28 When all positions are " 0 ", solution calls signal generating circuit 29 such as shown in Fig. 6 (A), generates the solution call signal of certain cycle T 1 SG1.In addition, being all positions of the signal of the magnetic data based on 75bpi and magnetic data in the output signal from switching circuit 28 When being " 0 ", solution calls signal generating circuit 29 such as shown in Fig. 6 (B), generates the solution call signal SG2 of certain cycle T 2.Separately Outside, cycle T 2 turns into about 2.8 times of cycle T 1.
As described above, in this embodiment, according to the card 2 of insertion card reader 1, recording in the first magnetic track 2e, the second magnetic The packing density of the magnetic data of road 2f and the 3rd magnetic track 2g each magnetic track is different sometimes.Therefore, in this embodiment, CPU24 differentiates record in the first magnetic track 2e, the second magnetic track based on the solution call signal that signal generating circuit 29 is inputted is called from solution The packing density of 2f and the 3rd magnetic track 2g magnetic data is 210bpi or 75bpi.
Specifically, reading knots of the CPU24 based on the first conduit 3a, the second conduit 3b and the 3rd conduit 3c in magnetic head 3 Really, the packing density of the magnetic data of the card 2 transmitted by transport mechanism 5 is differentiated.In addition, CPU24 is based on record in preamble portion The reading result of 2m synchronization data, differentiates the packing density of magnetic data.Also, CPU24 is based on calling signal generation from solution The frequency for the solution call signal that circuit 29 is inputted, differentiates the packing density of magnetic data.Further, since record is in preamble portion 2m The positions of synchronization data be all " 0 ", as described above, solution call signal SG2 cycle T 2 is the cycle T 1 for solving call signal SG1 About 2.8 times, therefore CPU24 based on from solution call signal generating circuit 29 input solution call signal frequency, can be easy Differentiate the packing density of magnetic data.
In addition, being connected with switching circuit 28 with CPU24, CPU24 switches over switching circuit 28 so that for differentiating The first process circuit 26 or second processing circuit 27 that the magnetic data of the packing density gone out is handled and solution call signal life Connected into circuit 29.That is, CPU24 switches over switching circuit 28 so that when it is 210bpi to be determined as packing density, and first Process circuit 26 calls signal generating circuit 29 to be connected with solution；When it is 75bpi to be determined as packing density, second processing circuit 27 Signal generating circuit 29 is called to be connected with solution.
In this embodiment, the switching circuit 28 before magnetic data is read in setting so that the first process circuit 26 and demodulation Connected with signal generating circuit 29.Therefore, when it is 210bpi to be determined as packing density, CPU24 is not exported to switching circuit 28 The control signal of switching.On the other hand, when it is 75bpi to be determined as packing density, CPU24 is to the output switching of switching circuit 28 Control signal, switching circuit 28 is switched over so that second processing circuit 27 calls signal generating circuit 29 to connect with solution Connect.
The switching of switching circuit 28 is terminated in the reading of synchrodata.That is, the switching of switching circuit 28 is in magnetic head 3 Terminate before the valid data part for the magnetic data followed by for reading synchronization data.After the finishing switching of switching circuit 28, Card 2 is also continued to transmit to X1 directions, and magnetic head 3 is read out to the valid data part of magnetic data.In addition, CPU24 is differentiating note Record after density, continue based on the solution call signal for calling signal generating circuit 29 to input from solution, to the valid data portion of magnetic data Divide and be demodulated, decode.
In addition, in control circuit 23, being used as the electricity handled for the magnetic data to the conduit reading by magnetic head 4 Road, including：Amplifying circuit 25, the first process circuit 26, second processing circuit 27, switching circuit 28 and solution call signal life Into circuit 29.The magnetic data read by the conduit of magnetic head 4, with being read by the first conduit 3a, the second conduit 3b and the 3rd conduit 3c Magnetic data it is same, packing density is differentiated by CPU24, is then demodulated, decodes.
(main efficacy results of the manner)
As described above, in this embodiment, the first conduit 3a of magnetic head 3, the second conduit 3b and the 3rd conduit 3c is configured to that 210bpi and 75bpi this 2 kinds of packing densitys can be read out, and the conduit of magnetic head 4 is configured to can be right This 2 kinds of packing densitys of 210bpi and 75bpi are read out.In addition, in this embodiment, control circuit 23 includes being used to handle First process circuit 26 of 210bpi magnetic data and for the second processing circuit 27 for the magnetic data for handling 75bpi, at first Circuit 26 and second processing circuit 27 are managed via amplifying circuit 25, with the first conduit 3a, the second conduit 3b, the 3rd conduit 3c and magnetic First 4 conduit is connected in parallel respectively.
Therefore, in this embodiment, no matter blocking the packing density for the magnetic data that 2 each magnetic track 2e~2h is recorded is 210bpi or 75bpi, can read 210bpi and 75bpi magnetic data with magnetic head 3,4, be solved with control circuit 23 Adjust, decode.I.e., in this embodiment, can use magnetic head 3,4 has the note for meeting international standard or JIS standards to handle The card 2 of the card 2 of the magnetic data of density and the magnetic data with the packing density for deviateing international standard or JIS standards is recorded, its In, former card 2 specifically records the magnetic data for having 210bpi in the first magnetic track 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h, And the magnetic data for having 75bpi is recorded in the 3rd magnetic track 2f；Latter card 2 specifically the first magnetic track 2e, the 3rd magnetic track 2g and/ Or the 4th magnetic track 2h records have 75bpi magnetic data, and/or the magnetic data for having 210bpi is recorded in the 3rd magnetic track 2f.Therefore, exist In the embodiment, the magnetic data for the card 2 that can deviate international standard or JIS standards to the packing density of magnetic data is solved Adjust, decode, versatility can be improved.
In addition, in this embodiment, by the general note of magnetic data that can be recorded to the card 2 that in the market occurs It is that 210bpi magnetic data and 75bpi magnetic data are demodulated, decoded to record density, therefore can utilize the reading of in the market extensively Card device 1.
In this embodiment, the solution that generation solution call signal is configured between switching circuit 28 and CPU24 calls letter Number generative circuit 29.Therefore, can also when controlling circuit 23 to include the first process circuit 26 and second processing circuit 27 The generation solution call signal of signal generating circuit 29 is called with common solution.Therefore, in this embodiment, can be with simplify control electricity The structure on road 23.
In this embodiment, CPU24 based on record preamble portion 2m, 2p synchronization data reading result, Differentiate the packing density of magnetic data, switching circuit 28 is switched over so that the magnetic data for the packing density to determining The first process circuit 26 or second processing circuit 27 handled calls signal generating circuit 29 to be connected with solution.Therefore, i.e., The outlet side of the first process circuit 26 or second processing circuit 27 is set to call signal generating circuit via switching circuit 28 and solution 29 are connected with CPU24, but when being demodulated, decoding in the valid data part to magnetic data, also only from the first processing electricity The output signal of road 26 or second processing circuit 27 is inputted to CPU24, wherein, the first process circuit 26 or second processing electricity Road 27 is used to handle the magnetic data recorded in magnetic stripe 2c, 2d packing density.Therefore, in this embodiment, can be with Simplify the processing of CPU24 when being demodulated, decoding to magnetic data, can shorten when being demodulated, decoding to magnetic data CPU24 processing time.
In this embodiment, CPU24 based on record preamble portion 2m, 2p synchronization data reading result, Differentiate the packing density of magnetic data.That is, when CPU24 differentiates record in the packing density of magnetic stripe 2c, 2d magnetic data, magnetic is utilized The reading result for the synchronization data that property is inverted with some cycles.Therefore, CPU24 easily differentiates the packing density of magnetic data.Cause This, can simplify differentiate magnetic data packing density when CPU24 processing, can shorten differentiate magnetic data packing density when CPU24 processing time.
In this embodiment, frequencies of the CPU24 based on the solution call signal that the input of signal generating circuit 29 is called from solution, Differentiate the packing density of magnetic data.As noted previously, as solution call signal SG2 cycle T 2 is to solve call signal SG1 cycle About 2.8 times of T1, therefore in this embodiment, CPU24 calls letter based on the solution for calling signal generating circuit 29 to input from solution Number frequency, can easily and suitably differentiate the packing density of magnetic data.
(variation of embodiment 1)
In embodiment 1, the first conduit 3a of magnetic head 3, the second conduit 3b, the conduit of the 3rd conduit 3c and magnetic head 4 It is configured to that the magnetic data of 210bpi and 75bpi this 2 kinds of packing densitys can be read out, the first process circuit 26 includes 210bpi filter circuit 31 and differential circuit 32, second processing circuit 27 includes 75bpi filter circuit 33 and differential Circuit 34.In addition, for example can also be, the first conduit 3a of magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 Conduit is configured to that the magnetic data of 2 beyond 210bpi and/or 75bpi kind packing density can be read out, the first processing electricity Road 26 and second processing circuit 27 include filter circuit and differential circuit, and the filter circuit and differential circuit can pair can be by magnetic heads The magnetic data for the packing density that 3 the first conduit 3a, the second conduit 3b, the conduit of the 3rd conduit 3c and magnetic head 4 are read is carried out Processing.In this case, control circuit 23 include amplifying circuit, the amplifying circuit can pair can by magnetic head 3 the first conduit The magnetic data for the packing density that 3a, the second conduit 3b, the conduit of the 3rd conduit 3c and magnetic head 4 are read is handled.
Alternatively, it is also possible to the conduit for the first conduit 3a of, magnetic head 3, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 It is configured to that the magnetic data of more than 3 kinds packing densitys can be read out, control circuit 23 includes the processing electricity of more than 3 Road, is handled for the magnetic data respectively to more than 3 kinds of packing density.For example, it is also possible to be, the first conduit of magnetic head 3 3a, the second conduit 3b, the conduit of the 3rd conduit 3c and magnetic head 4 are configured to that the magnetic data of 3 kinds of packing densitys can be read Take, control circuit 23 includes being used for the first process circuit, the second processing that the magnetic data respectively to 3 kinds of packing densitys is handled Circuit and the 3rd process circuit this 3 process circuits.
In embodiment 1, solution is configured between switching circuit 28 and CPU24 and calls signal generating circuit 29.In addition, For example, switching circuit 28 can also be directly connected to CPU24.In this case, the first process circuit 26 and second processing electricity Signal generating circuit 29 is called including solution in road 27 respectively.
In embodiment 1, the first conduit 3a, the second conduit 3b, the 3rd conduit of amplifying circuit 25 respectively with magnetic head 3 The conduit connection of 3c and magnetic head 4, the first process circuit 26 and second processing circuit 27 are connected in parallel in amplifying circuit 25. In addition, for example can also be, the first process circuit 26 and second processing circuit 27 include amplifying circuit 25, the first groove of magnetic head 3 Road 3a, the second conduit 3b, the 3rd conduit 3c and magnetic head 4 conduit respectively with the first process circuit 26 and second processing circuit 27 is in parallel and be directly connected to.
In embodiment 1, magnetic stripe 2d is formed with the surface 2b of card 2.In addition, for example can also card 2 surface 2b Magnetic stripe 2d is not formed.In this case, card reader 1 can not also include magnetic head 4.In addition, in embodiment 1, in card 2 Magnetic stripe 2c records the magnetic data for having 3 magnetic tracks, but record can be less than 2 in the track number of magnetic stripe 2c magnetic data, also may be used To be more than 4.
In embodiment 1, the switching of switching circuit 28 is the magnetic data followed by that synchronization data are read in magnetic head 3 Valid data part before terminate, after the finishing switching of switching circuit 28, card 2 also continue to X1 directions transmit, magnetic head 3 is to magnetic The valid data part of data is read out.In addition, for example synchronization data posting field is narrower, magnetic head 3 reads magnetic number According to valid data part before the switching of switching circuit 28 be not over when, first card 2 temporarily can also be sent to X2 directions It can be read behind the position of valid data part of magnetic data with magnetic head 3, card 2 is transmitted to X1 directions again, read with magnetic head 3 Take the valid data part of magnetic data.In addition, reading switching circuit 28 before the valid data part of magnetic data even in magnetic head 3 During finishing switching, after can also first card 2 temporarily be transmitted to X2 directions, card 2 is transmitted to X1 directions again, read with magnetic head 3 Take the valid data part of magnetic data.So, if will first block after the 2 temporary transient transmission to X2 directions, card 2 is passed to X1 directions again Send, the valid data part of magnetic data is read with magnetic head 3, then criminal can be prevented wrongly to be used to obtain magnetic data Reading device be arranged on insert port 6 come obtain magnetic data so-called robber block (skimming).
Embodiment 2
Fig. 7 is the letter for illustrating the control circuit 43 of the magnetic information reading device 1 involved by embodiments of the present invention 2 Want the block diagram of structure.Fig. 8 is the figure for illustrating the method for discrimination of the packing density of the magnetic data in the CPU24 shown in Fig. 7. In addition, illustrating the structure related to the reading control of the magnetic data involved by magnetic head 3 and fore head 9 in the figure 7.
In embodiment 1, readings of the CPU24 based on the first conduit 3a, the second conduit 3b and the 3rd conduit 3c in magnetic head 3 Result is taken, packing density of the record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data is differentiated.It is different , in embodiment 2, fore head 9 includes：For the first groove being read out to the magnetic data recorded in the first magnetic track 2e Road 9a, for the second conduit 9b for being read out to the magnetic data recorded in the second magnetic track 2f and for recording the 3rd This 3 conduits of the 3rd conduit 9c that magnetic track 2g magnetic data is read out, first conduit 9as of the CPU24 based on the portion of being in advance 9, Two conduit 9b and the 3rd conduit 9c reading result, differentiates record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g The packing density of magnetic data.
Because this point is the main difference of embodiment 1 and embodiment 2, therefore below using the difference in The heart, illustrates the structure of the card reader 1 involved by embodiment 2.In addition, in Fig. 7, Fig. 8, for same with embodiment 1 Structure marks same mark.
As described above, fore head 9 includes the first conduit 9a, the second conduit 9b and the 3rd conduit 9c this 3 conduits.First groove Road 9a, the second conduit 9b and the 3rd conduit 9c are configured to that 210bpi and 75bpi this 2 kinds of packing densitys can be read out.That is, The first conduit 9a, the second conduit 9b and the 3rd conduit 9c of the embodiment are that the magnetic data of multiple packing densitys can be carried out The conduit of reading.
Control circuit 43 includes：The amplifying circuit being connected respectively with the first conduit 9a, the second conduit 9b and the 3rd conduit 9c 45；The amplifying circuit being connected with the first conduit 3a amplifying circuits 25 being connected and with the first conduit 9a is connected in parallel in input side 45 head switching circuit 46；Input side be connected in parallel to the second conduit 3b amplifying circuits 25 being connected and with the second conduit The head switching circuit 46 of the amplifying circuit 45 of 9b connections；And be connected in parallel to and putting that the 3rd conduit 3c is connected in input side Big circuit 25 and the head switching circuit 46 with the 3rd conduit 9c amplifying circuits 45 being connected.The output of switching circuit 46 on head Side is connected in parallel to the first process circuit 26 and second processing circuit 27.In this embodiment, setting is read before magnetic data Head switching circuit 46 so that the first conduit 9a, the second conduit 9b and the 3rd conduit 9c and the first process circuit 26 of fore head 9 And second processing circuit 27 is connected.
As described above, in this embodiment, first conduit 9as of the CPU24 based on the portion of being in advance 9, the second conduit 9b and Three conduit 9c reading result, differentiates record of the record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data Density.In addition, in this embodiment, identical with embodiment 1, synchronizations of the CPU24 based on record in preamble portion 2m is used The reading result of data, differentiates the packing density of magnetic data.Herein, fore head 9 is configured in the vicinity of insert port 6.Therefore, preceding When synchronous code portion 2m is by fore head 9, card 2 is by being manually inserted into card reader 1, rather than by transport mechanism 5 by user Transmission.That is, preamble portion 2m is not necessarily certain by the translational speed of the card 2 during fore head 9.
Therefore, in this embodiment, for example, CPU24 based on input to CPU24 it is solution call signal, from front The magnetic that the leading section (X1 directions end) that portion 9 detects card 2 is played untill detecting the leading section of card 2 with testing agency 10 is anti- Revolution, differentiates packing density of the record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data.Or, CPU24 Based on input to CPU24 it is solution call signal, from the leading section that card 2 is detected with testing agency 10 play use testing agency 11 The reversal of magnetism number untill the leading section of card 2 is detected, differentiates record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g Magnetic data packing density.Or, CPU24 based on input to CPU24 it is solution call signal, detected from fore head 9 Play the reversal of magnetism number untill detecting the leading section of card 2 with testing agency 10 in the leading section of card 2；With input to CPU24's Solution call signal, the leading section that card 2 is detected with testing agency 11 is played from the leading section that card 2 is detected with testing agency 10 Untill reversal of magnetism number both, differentiate magnetic data of the record in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g Packing density.
In addition, as shown in figure 8, the magnetic during due to when packing density the is 210bpi, distance that the movement of card 2 is predetermined is anti- About 2.8 times of reversal of magnetism number during when revolution as packing density is 75bpi, the predetermined distance of the movement of card 2, therefore CPU24 can easily differentiate magnetic number based on the reversal of magnetism number for solving call signal that signal generating circuit 29 is inputted is called from solution According to packing density.
In addition, results of the CPU24 based on the packing density for differentiating magnetic data, same with embodiment 1, by switching circuit 28 Switch over so that at the first process circuit 26 or second that the magnetic data for the packing density to determining is handled Reason circuit 27 calls signal generating circuit 29 to be connected with solution.In this embodiment, the switching of switching circuit 28 is read in magnetic head 3 Take and terminate before magnetic data.
Head switching circuit 46 is connected with CPU24, if the finishing switching of switching circuit 28, CPU24 switches head Circuit 46 is switched over so that the first conduit 3a, the second conduit 3b and the 3rd conduit 3c of magnetic head 3 and the first process circuit 26 and Second processing circuit 27 is connected.Afterwards, CPU24 is based on the first conduit 3a's, the second conduit 3b and the 3rd conduit 3c in magnetic head 3 Result is read, to recording the valid data part progress in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data Demodulation, decoding.
As described above, in this embodiment, fore heads 9 of the CPU24 based on the neighbouring configuration in insert port 6 First conduit 9a, the second conduit 9b and the 3rd conduit 9c reading result, differentiate record in the first magnetic track 2e, the second magnetic track 2f and The packing density of 3rd magnetic track 2g magnetic data, switching circuit 28 is switched over.Therefore, in this embodiment, with magnetic Reliably switching circuit 28 can be switched over before first 3 reading magnetic data.
In this embodiment, the reversal of magnetism of the solution call signal during CPU24 moves predetermined distance based on card 2 Number, differentiates the packing density of magnetic data.Therefore, even if card 2 is not moved with constant speed, note can also be suitably differentiated with CPU24 Record the packing density in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data.
In this embodiment, amplifying circuit 25,45 is connected in parallel in the input side of head switching circuit 46, and first Process circuit 26 and second processing circuit 27 are connected in parallel in the outlet side of head switching circuit 46.Therefore, with amplifying circuit 25th, 45 outlet side is connected to the first process circuit 26 or the situation of second processing circuit 27 is compared, can be with simplify control The structure of circuit 43.
In addition, in this embodiment, fore head 9 is for detecting that card 2 inserts the medium insertion detection head of card reader 1 Portion, magnetic head 3 is the data solution call header for the magnetic data recorded in magnetic stripe 3c to be read out, demodulates, decoded.In addition, In this embodiment, CPU24 based on input to CPU24 it is solution call signal, before card 2 is detected with fore head 9 The reversal of magnetism number untill detecting the leading section of card 2 with testing agency 10 is played in end, differentiates record in the first magnetic track 2e, the During the packing density of two magnetic track 2f and the 3rd magnetic track 2g magnetic data, fore head 9 is to be configured relative to testing agency 10 in insertion First testing agency of 6 sides of mouth, testing agency 10 is the second testing agency.In addition, in CPU24 based on input to CPU24's Solution call signal, the leading section that card 2 is detected with testing agency 11 is played from the leading section that card 2 is detected with testing agency 10 Untill reversal of magnetism number, differentiate that record records close in the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data When spending, testing agency 10 is to configure the first testing agency in the side of insert port 6 relative to testing agency 11, and testing agency 11 is Second testing agency.
(variation of embodiment 2)
In embodiment 2, amplifying circuit 25,45 is connected in parallel in the input side of head switching circuit 46, and first Process circuit 26 and second processing circuit 27 are connected in parallel in the outlet side of head switching circuit 46.In addition, for example can also be The outlet side of amplifying circuit 25,45 connects the first process circuit 26, second processing circuit 27 respectively.
In embodiment 2, CPU24 based on input to CPU24 it is solution call signal, detect card 2 from fore head 9 Leading section play reversal of magnetism number untill detecting the leading section of card 2 with testing agency 10；With the demodulation of input to CPU24 With signal, play from the leading section that card 2 is detected with testing agency 10 and to detect the leading section of card 2 with testing agency 11 untill Reversal of magnetism number, differentiate record the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data packing density.This Outside, card transmitting path 7 can also for example be closed with gate part 8 when card 2 is inserted, the leading section of card 2, which is supported, encounters gate portion After part 8, gate part 8 is set to avoid so that card transmitting path 7 to be opened, and solution call signals of the CPU24 based on input to CPU24 , support from the leading section of card 2 and to encounter the position of gate part 8 and play and detect card 2 with testing agency 10 or testing agency 11 Leading section untill reversal of magnetism number, differentiate record the first magnetic track 2e, the second magnetic track 2f and the 3rd magnetic track 2g magnetic data Packing density.If so constituting, it can prevent criminal from will wrongly be installed for the reading device for obtaining magnetic data The so-called robber card of magnetic data is obtained in insert port 6.
Embodiment 3
(brief configuration of magnetic information reading device)
Fig. 9 is the stereogram of the magnetic information reading device 51 involved by embodiments of the present invention 3.Figure 10 is to be used to illustrate From the figure of the configuration relation of the magnetic head 55, scanner 56 and liner roll 57 in Fig. 9 G-G directions.Figure 11 is comparable to Figure 10's The sectional view of the magnetic information reading device 51 in H-H sections.Figure 12 is for illustrating by the card passage path 53 shown in Fig. 9 The figure of the configuration relation of magnetic information recording medium 2 and magnetic head 55, (A) be for illustrate the back side 2a of magnetic information recording medium 2 with The figure of the configuration relation of magnetic head 55, (B) is for illustrating the surface 2b of magnetic information recording medium 2 and the configuration relation of magnetic head 55 Figure.
In addition, in the following description, as shown in Fig. 9 etc., if mutually perpendicular 3 directions are X-direction, Y-direction and Z side To X-direction is fore-and-aft direction, and Y-direction is above-below direction, and Z-direction is left and right directions.In addition, set Fig. 9 X1 directions side as " rear " side, X2 directions side be " preceding " side, Y1 directions side for " on " side, Y2 directions side for " under " side.
The magnetic information reading device 51 of the embodiment is user by manually being operated, card 2 for recording The device that the magnetic data of card 2 is read out, decoded.In addition, the magnetic information reading device 51 of the embodiment is that user passes through hand The dynamic device for being operated to card 2, blocking the image on 2 for obtaining.Specifically, magnetic information reading device 51 is so-called hand Brush card reader, while card 2 is moved along the card passage path 53 for being formed as channel-shaped and (is passed to card passage path 53), side Read the magnetic data of card 2 and obtain the image on card 2.Therefore, the magnetic information reading device 51 of the embodiment is remembered below For " card reader 51 ".
Card reader 51 as shown in Fig. 9~11, including：For the magnetic data recorded to the card 2 by card passage path 53 The magnetic head 55 being read out；It is used as character or bar code read on card 2 etc., the image fetching unit of the image obtained on card 2 Scanner 56；And with scanner 56 is arranged opposite, pad that is pressing the card 2 by card passage path 53 to scanner 56 Roller 57.
In this embodiment, constitute card reader 51 so that user side make card 2 from the front side of card reader 51 to rear side (i.e. X1 directions) it is mobile, while the magnetic data to card 2 is read out, obtain the image on card 2.I.e., in this embodiment, X1 directions It is the direction of insertion of card 2, and is by direction.In addition, in this embodiment, left and right directions is the thickness direction of card 2, front and rear Direction is the long side direction of card 2, and above-below direction is the short side direction of card 2.
As explained in Embodiment 1, card 2 is, for example, the vinyl chloride for the rectangle that thickness is 0.7~0.8mm or so Card, overleaf 2a is formed with magnetic stripe 2c, and on surface, 2b is formed with magnetic stripe 2d.There are the first magnetic track 2e, the second magnetic in magnetic stripe 2c records Road 2f and the 3rd magnetic track 2g this 3 magnetic tracks magnetic data.The magnetic data for having the 4th magnetic track 2h this 1 magnetic track is recorded in magnetic stripe 2d.
In the first magnetic track 2e, the second magnetic track 2f, the 3rd magnetic track 2g and the 4th magnetic track 2h, for example, remembered with F2F recording mode Record magnetic data.In addition, in this embodiment, recording the magnetic data in the first magnetic track 2e, the 3rd magnetic track 2g and the 4th magnetic track 2h Packing density be 210bpi, it is 75bpi to record in the packing density of the second magnetic track 2f magnetic data.That is, card reader 51 is inserted Card 2 be the card for meeting international standard or JIS standards.
In addition, in this embodiment, as shown in figure 12, for the short side direction from card 2 one end 2j to the first magnetic Road 2e one end apart from L1, from one end 2j to the first magnetic track 2e other end apart from L2, from one end 2j to the second magnetic Road 2f one end apart from L3, from one end 2j to the second magnetic track 2f other end apart from L4, from one end 2j to the 3rd magnetic Road 2g one end apart from L5, from one end 2j to the 3rd magnetic track 2g other end apart from L6, from one end 2j to the 4th magnetic Road 2h one end apart from L7, from one end 2j to the 4th magnetic track 2h other end apart from L8, according to JIS standard settings such as Under.
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)
I.e., in this embodiment, when from the thickness direction of card 2, the 4th magnetic track 2h a part configuration with Second magnetic track 2f gamut substantially overlapping position.
In addition, in the back side 2a and/or surface 2b of card 2, description has character or figure, pattern etc..Or, in the back of the body of card 2 Face 2a and/or surface 2b, is printed with bar code etc..Furthermore it is possible to IC chip is fixed in the surface 2b of card 2, can also be in card 2 Put the antenna of communication.
Magnetic head 55 includes：For the magnetic data recorded in the first magnetic track 2e is read out the first conduit 55a, for pair Record magnetic data and record in the second magnetic track 2f in the 4th magnetic track 2h the second conduit 55b for being read out of magnetic data and For the 3rd conduit 55c this 3 conduits being read out to the magnetic data recorded in the 3rd magnetic track 2g.I.e., the first conduit 55a and 3rd conduit 55c is configured to that 210bpi magnetic data can be read out.In addition, be configured to can be right by the second conduit 55b The magnetic data of this 2 kinds of packing densitys of 210bpi and 75bpi is read out.That is, the second conduit 55b of the embodiment is can be right The conduit that the magnetic data of multiple packing densitys is read out.In addition, the first conduit 55a, the second conduit 55b and the 3rd conduit 55c It is arranged in order in left and right directions with this.
Scanner 56 is the scanner (imaging sensor) of so-called closing-type.Scanner 56 is in left and right directions and magnetic head 55 It is opposed and configure.Liner roll 57 is adjacent with magnetic head 55 and configure in above-below direction.
Card passage path 53 as shown in Figure 10, is formed as the channel-shaped of upper end side opening.In addition, card passage path 53 such as Figure 11 It is shown, throughout from the front end of card reader 51 to the gamut of rear end, be formed as linear.Card passage path 53 depth (on The depth in lower direction) it is more shallow than the width of the short side direction of card 2, exposed by the upper end side of the card 2 of card passage path 53 and read The outside of card device 51.When reading the magnetic data of card 2 or obtaining the image on card 2, user, which catches, to expose in the outer of card reader 51 The upper end side of the card 2 in portion, making card 2, side is moved backward, so that card 2 passes through card passage path 53.
In this embodiment, if the one end 2j of card 2 is pressed against the bottom for the lower surface for constituting card passage path 53 by side Face 53a, while make the back side 2a of card 2 abut to move card 2 with magnetic head 55, then the magnetic data recorded in magnetic stripe 2c can be by magnetic head 55 Read.Specifically, record is read in the first magnetic track 2e magnetic data by the first conduit 55a, records the magnetic in the second magnetic track 2f Data are read by the second conduit 55b, and the magnetic data recorded in the 3rd magnetic track 2g is read by the 3rd conduit 55c.If in addition, side will block 2 one end 2j is pressed against the bottom surface 53a of card passage path 53, while making the surface 2b of card 2 abut to move card 2 with magnetic head 55 Dynamic, then the magnetic data recorded in magnetic stripe 2d can be read by magnetic head 55.Specifically, record in the 4th magnetic track 2h magnetic data by the Two conduit 55b are read.
So, in this embodiment, the bottom surface 53a of card passage path 53, which turns into, is used for magnetic head 55 in above-below direction Position and the reference plane of magnetic stripe 2c, 2d aligned in position.In addition, the one end 2j of card 2 is pressed against into card passage path by side 53 bottom surface 53a, while card 2 is moved, the position consistency also with scanner 56 such as character on the card 2 of above-below direction.
In addition, in this embodiment, as shown in figure 12, for from the bottom surface 53a of card passage path 53 to the first conduit 55a one end apart from L21, from bottom surface 53a to the first conduit 55a other end apart from L22, from bottom surface 53a to the second groove Road 55b one end apart from L23, from bottom surface 53a to the second conduit 55b other end apart from L24, from bottom surface 53a to the 3rd Conduit 55c one end apart from L25, from bottom surface 53a to the 3rd conduit 55c other end apart from L26, respectively sets as follows.
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 for illustrating the brief configuration of the control circuit 63 of the magnetic information reading device 51 shown in Fig. 9. Figure 14 is the flow of an example of the flow for the effective judgement control for representing the decoding data in the CPU64 shown in Figure 13 Figure.In addition, in fig. 13, it is illustrated that the structure related to the reading control of the magnetic data involved by magnetic head 55.
Card reader 51 includes control circuit 63, for being demodulated, decoding to the magnetic data read by magnetic head 55.Such as Figure 13 It is shown, it is connected with magnetic head 55 with control circuit 63.Specifically, in control circuit 63, the first conduit 55a of magnetic head 55, second Conduit 55b and the 3rd conduit 55c are connected in parallel.
Circuit 63 is controlled to include the CPU64 as counting circuit.In addition, in control circuit 63, as by the The circuit that the magnetic data that one conduit 55a is read is handled, including：210bpi amplifying circuit 65,210bpi filtering Circuit 66,210bpi differential circuit 67, solution call the magnetic track demodulating data generative circuit of signal generating circuit 68 and first 69。
In addition, in control circuit 63, as the electricity to being handled by the 3rd conduit 55c magnetic datas read Road, including：210bpi amplifying circuit 65,210bpi filter circuit 66,210bpi differential circuit 67, solution are called The magnetic track demodulating data generative circuit 70 of signal generating circuit 68 and the 3rd.
Also, in control circuit 63, as the electricity to being handled by the second conduit 55b magnetic datas read Road, including：The process circuit 72 (being designated as the first process circuit 72 below) that is handled for the magnetic data to 75bpi, it is used for Process circuit 73 (being designated as second processing circuit 73 below) that magnetic data to 210bpi is handled, the second magnetic track demodulating data The magnetic track demodulating data generative circuit 75 of generative circuit 74 and the 4th.
First process circuit 72 and second processing circuit 73 and the second conduit 55b are connected in parallel.First process circuit 72 is wrapped Include：75bpi amplifying circuit 76,75bpi filter circuit 77,75bpi differential circuit 78 and solution call signal Generative circuit 68.Second processing circuit 73 includes：210bpi amplifying circuit 79,210bpi filter circuit 66, 210bpi differential circuit 67 and solution calls signal generating circuit 68.
Amplifying circuit 65 is connected with the first conduit 55a and the 3rd conduit 55c respectively, to from the first conduit 55a and the 3rd Conduit 55c output signal is amplified.Amplifying circuit 76 and amplifying circuit 79 and the second conduit 55b are connected in parallel, to from Second conduit 55b output signal is amplified.
Filter circuit 66 is connected with the outlet side of amplifying circuit 65,79, is removed from the output signal of amplifying circuit 65,79 pre- Fixed frequency component.Filter circuit 77 is connected with the outlet side of amplifying circuit 76, is removed from the output signal of amplifying circuit 76 pre- Fixed frequency component.Specifically, filter circuit 66,77 is so-called low pass filter, removes frequency more than predetermined frequency Rate component.Differential circuit 67,78 is connected with filter circuit 66,77, the output signal from filter circuit 66,77 is carried out micro- Point.
Solution calls signal generating circuit 68 and the outlet side of differential circuit 67,78 to be connected.The solution calls signal generating circuit 68 based on the output signal from differential circuit 67,78, the wavy solution call signal of the rectangle that generation magnetic data solution is called.
First magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulation number The outlet side of signal generating circuit 68 is called to be connected with solution according to the magnetic track demodulating data generative circuit 75 of generative circuit 70 and the 4th.The One magnetic track demodulating data generative circuit 69 based on calling the solution call signal that signal generating circuit 68 is exported from solution, generation with by the The corresponding demodulating data of magnetic data that one conduit 55a is read, the 3rd magnetic track demodulating data generative circuit 70 is based on calling letter from solution The solution call signal that number generative circuit 68 is exported, generates demodulating data corresponding with the magnetic data read by the 3rd conduit 55c.Separately Outside, the second magnetic track demodulating data generative circuit 74 and the 4th magnetic track demodulating data generative circuit 75 are based on calling signal generation from solution The solution call signal that circuit 68 is exported, generates demodulating data corresponding with the magnetic data read by the second conduit 55b.
CPU64 and the first magnetic track demodulating data generative circuit 69, the second magnetic track demodulating data generative circuit 74, the 3rd magnetic track The outlet side connection of the magnetic track demodulating data generative circuit 75 of demodulating data generative circuit 70 and the 4th.CPU64 is based on from the first magnetic Road 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 demodulating data of 4th magnetic track demodulating data generative circuit 75 input, generates decoding data.
As described above, in this embodiment, if the one end 2j of card 2 is pressed against the bottom surface of card passage path 53 by side 53a, while making the back side 2a of card 2 abut to move card 2 with magnetic head 55, then records the magnetic data in the second magnetic track 2f by the second groove Road 55b is read；If while the one end 2j of card 2 is pressed against into bottom surface 53a, while making the surface 2b of card 2 abut to make card 2 with magnetic head 55 Mobile, then the magnetic data recorded in magnetic stripe 2d is read by the second conduit 55b.I.e., in this embodiment, the second conduit is utilized 55b read 75bpi magnetic data or 210bpi magnetic data in any one.
In addition, when record is read in the second magnetic track 2f 75bpi magnetic data by the second conduit 55b, CPU64 can be with base In the demodulating data inputted from the second magnetic track demodulating data generative circuit 74, generate appropriate decoding data, but can not be based on from The demodulating data of 4th magnetic track demodulating data generative circuit 75 input, generates appropriate decoding data.On the other hand, when record exists When 4th magnetic track 2h 210bpi magnetic data is read by the second conduit 55b, CPU64 can be based on from the 4th magnetic track demodulating data The demodulating data that generative circuit 75 is inputted, generates appropriate decoding data, but can not be based on from the generation of the second magnetic track demodulating data The demodulating data that circuit 74 is inputted, generates appropriate decoding data.
In this embodiment, using this point, CPU64 differentiates to be recorded on by the second conduit 55b magnetic datas read Second magnetic track 2f magnetic data, the magnetic data for being also recorded on the 4th magnetic track 2h.That is, CPU64, which differentiates, to be based on from the second magnetic track solution The decoding data for the signal that adjusting data generative circuit 74 is inputted is effective, is also based on generating electricity from the 4th magnetic track demodulating data The decoding data for the signal that road 75 is inputted is effective.
Specifically, shown in flow as shown in figure 14, CPU64 to 75bpi magnetic data it is first determined whether can enter Row decoding (step S1).That is, CPU64 is based on the demodulating data inputted from the second magnetic track demodulating data generative circuit 74, judgement It is no to generate appropriate decoding data.In step sl, when that can be decoded to 75bpi magnetic data, CPU64 differentiates Decoding data based on the signal inputted from the second magnetic track demodulating data generative circuit 74 is effective (step S2).That is, CPU64 It is determined as being recorded on the second magnetic track 2f magnetic data by the magnetic data that the second conduit 55b is read.
On the other hand, in step sl, when that can not be decoded to 75bpi magnetic data, CPU64 judges whether can be with Magnetic data to 210bpi is decoded (step S3).That is, CPU64 is based on inputting from the 4th magnetic track demodulating data generative circuit 75 Demodulating data, determine whether that appropriate decoding data can be generated.In step s3,210bpi magnetic data can entered During row decoding, CPU64 differentiates that the decoding data based on the signal inputted from the 4th magnetic track demodulating data generative circuit 75 is effective (step S4).That is, CPU64 is determined as being recorded on the 4th magnetic track 2h magnetic data by the magnetic data that the second conduit 55b is read.
In addition, in step s3, when that can not be decoded to 210bpi magnetic data, CPU64 is determined as by the second groove The magnetic data that road 55b is read neither is recorded on the second magnetic track 2f magnetic data, nor magnetic number of the record in the 4th magnetic track 2h According to being invalid (step S5).
In addition, CPU64 is carried out predetermined afterwards using effective decoding data is determined as in step S2 or step S4 Processing.In addition, when the magnetic data read by magnetic head 55 is magnetic stripe 2c magnetic data, CPU64, which is utilized, to be based on from the first magnetic track solution Adjusting data generative circuit 69 input demodulating data decoding data and based on defeated from the 3rd magnetic track demodulating data generative circuit 70 The decoding data of the demodulating data entered, carries out predetermined processing.
(main efficacy results of the manner)
As described above, in this embodiment, the second conduit 55b of magnetic head 55 can be to 210bpi and 75bpi This 2 kinds of packing densitys are read out.In addition, in this embodiment, in control circuit 63, as by the second conduit The circuit that the magnetic data that 55b is read is handled, including：The first process circuit handled for the magnetic data to 75bpi 72nd, the second processing circuit 73 handled for the magnetic data to 210bpi, the first process circuit 72 and second processing circuit 73 are connected in parallel with the second conduit 55b.
Therefore, in this embodiment, if the one end 2j of card 2 is pressed against the bottom surface 53a of card passage path 53, side by side Make the back side 2a of card 2 abut to move card 2 with magnetic head 55, then can be with the second conduit 55b to recording the second magnetic track 2f's 75bpi magnetic data is read out, and is demodulated, decoded with control circuit 63；If the one end 2j of card 2 is pressed against by other side Bottom surface 53a, while make the surface 2b of card 2 abut to move card 2 with magnetic head 55, then can be with the second conduit 55b to recording in magnetic Bar 2d 210bpi magnetic data is read out, and is demodulated, decoded with control circuit 63.
I.e., in this embodiment, when from the thickness direction of card 2, even if record has the of 75bpi magnetic data The 4th magnetic track 2h that two magnetic track 2f and record have 210bpi magnetic data is configured in overlapping position on surface and the back side, but user By the way that card 2 is moved it in turn, the one end 2j of card 2 is set to be connected to bottom surface 53a, can also be with 1 magnetic head 55 to the back side 2a the second magnetic track 2f magnetic data and surface 2b the 4th magnetic track 2h magnetic data both data are read out, with control electricity Road 63 is demodulated, decoded.I.e., in this embodiment, can be with fairly simple composition, to the back side 2a's of such card 2 Magnetic stripe 2c magnetic data and surface 2b magnetic stripe 2d magnetic data both data are demodulated, decoded.
In addition, in this embodiment, due to 1 magnetic head, 55 couple of second magnetic track 2f magnetic data and the 4th magnetic track can be used Both data of 2h magnetic data are read out, and are demodulated, decoded with control circuit 63, therefore can be opposed to magnetic head 55 Configure scanner 56.Therefore, in this embodiment, the magnetic data of card 2 can be read, and the image of card 2 can be obtained.
In this embodiment, the first process circuit 72 includes：75bpi amplifying circuit 76,75bpi filtered electrical Road 77,75bpi differential circuit 78 and solution call signal generating circuit 68, and second processing circuit 73 includes：210bpi is used Amplifying circuit 79,210bpi filter circuit 66,210bpi differential circuit 67 and solution call signal generating circuit 68.It therefore, it can call signal generating circuit 68 via the second magnetic track demodulating data generative circuit 74 or the 4th magnetic from 2 solutions Road demodulating data generative circuit 75,2 kinds of demodulating datas are inputted to CPU64 simultaneously.Magnetic data is decoded therefore, it is possible to shorten When CPU64 processing time.
(variation of embodiment 3)
In embodiment 3, circuit 63 is controlled except CPU64, in addition to：First magnetic track demodulating data generative circuit 69, Second magnetic track demodulating data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the generation of the 4th magnetic track demodulating data Circuit 75.In addition, for example, control circuit 63 can not also include the first magnetic track demodulating data generative circuit 69, the second magnetic track solution Adjusting data generative circuit 74, the 3rd magnetic track demodulating data generative circuit 70 and the 4th magnetic track demodulating data generative circuit 75.At this In the case of kind, CPU64 generates demodulating data based on the solution call signal that signal generating circuit 68 is inputted is called from solution, in addition, Demodulating datas of the CPU64 based on generation, generates decoding data.In addition, in this case, CPU64, which differentiates, to be based on from 2 demodulation The decoding data that the signal of the input of signal generating circuit 68 is called with which solution in signal generating circuit 68 is effective.
In embodiment 3, the second conduit 55b of magnetic head 55 be configured to can to 210bpi and 75bpi this 2 kinds record close The magnetic data of degree is read out, and the first process circuit 72 includes 75bpi amplifying circuit 76, filter circuit 77 and differential circuit 78, second processing circuit 73 includes 210bpi amplifying circuit 79, filter circuit 66 and differential circuit 67.In addition, for example Can be that the second conduit 55b is configured to that the magnetic data of 2 beyond 210bpi and/or 75bpi kind packing density can be read Take, the first process circuit 72 and second processing circuit 73 include can pair can by the second conduit 55b packing densitys read magnetic Amplifying circuit, filter circuit and differential circuit that data are handled.
Alternatively, it is also possible to for the second conduit 55b is configured to that the magnetic data of more than 3 kinds packing densitys can be read Take, the place of more than 3 of the magnetic data of the packing density for handling more than 3 kinds respectively is connected in parallel in the second conduit 55b Manage circuit.Alternatively, it is also possible to which be configured to for, the first conduit 55a and/or the 3rd conduit 55c can be to packing density of more than two kinds Magnetic data be read out, be connected in parallel in the first conduit 55a and/or the 3rd conduit 55c for respectively handling of more than two kinds The process circuit of more than 2 of the magnetic data of packing density.
Other embodiment
Above-mentioned mode is an example of preferred embodiment of the present invention, but not limited to this, is not changing main points of the present invention In the range of, various modifications implementation can be carried out.
In embodiment 1, using control circuit 23 in the card reader 1 of the card conveying type including transport mechanism 5, but control Circuit 23 processed can be used for the card reader of hand.In this case, card reader can be and the identical hand of embodiment 3 Brush card reader or the card reader of so-called impregnated.In addition, in this case, CPU24 is based on card 2 and moved The reversal of magnetism number of solution call signal during predetermined distance, differentiates the packing density of magnetic data.
In embodiment 3, using control circuit 63 in the card reader 51 of hand brush formula, but control circuit 63 can also be used In the card reader of impregnated.In addition, control circuit 63 can be also used for the card reader of card conveying type.
In the above-described embodiment, card reader 1,51 is for handling the card 2 of vinyl chloride, PET card 2 or paper The card reader of the card of the grade of card 2 of system.In addition, for example, can also use using the magnetic information reading device of the structure of the present invention In the magnetic information reading device of the magnetic information recording mediums such as processing passport.

Claims (2)

1. a kind of magnetic information reading device, including：
Magnetic head, can be read out to the magnetic data that the magnetic stripe for being formed at magnetic information recording medium is recorded；And
Circuit is controlled, for being demodulated, decoding to the magnetic data by the head read,
Characterized in that,
Including testing agency, for detecting the magnetic information recording medium to the institute of the direction of insertion of the magnetic information reading device The leading section of magnetic information recording medium is stated, also,
Detection is inserted with head and data demodulation head as the magnetic head, including medium, and the medium inserts detection head Portion is used to detect that the magnetic information recording medium inserts the magnetic information reading device and for detecting the magnetic information recording Medium is called to the leading section of the magnetic information recording medium of the direction of insertion of the magnetic information reading device, the data solution Head is used to be read out the magnetic data that the magnetic stripe is recorded, demodulate, decode,
The medium insertion detection head and the data solution call header are more with what can be recorded to the magnetic stripe respectively Multiple conduits that the magnetic data of individual magnetic track is read out respectively,
The medium inserts detection head in the direction of insertion of the magnetic information recording medium, matches somebody with somebody relative to the testing agency Put in the insert port side of the magnetic information recording medium,
The testing agency calls header arrangement to exist in the direction of insertion of the magnetic information recording medium relative to the data solution The insert port side of the magnetic information recording medium,
Multiple magnetic tracks from the magnetic information recording medium to the magnetic stripe of the direction of insertion of the magnetic information reading device Respective front, records the synchronization data for being magnetic and being inverted with some cycles,
The control circuit includes：
Multiple process circuits, the plurality of process circuit being connected in parallel inserts detection head via predetermined circuit and the medium Each conduit of each conduit of multiple conduits in portion and multiple conduits of the data solution call header is connected, and And for being handled according to each packing density the magnetic data of multiple packing densitys；
Counting circuit, is connected via predetermined circuit with the outlet side of multiple process circuits；And
Switching circuit, the switching circuit is connected in parallel to multiple process circuits in input side, and direct in outlet side Or the counting circuit is connected with via predetermined circuit,
The counting circuit is inserted described same in each conduit of multiple conduits on detection head based on the medium The reading results of step data and input it is signal, go out the magnetic information note from medium insertion detection head detection Play the reversal of magnetism untill the testing agency detects the leading section of the magnetic information recording medium in the leading section of recording medium Number, determines the packing density of the magnetic data of each magnetic track of multiple magnetic tracks that the magnetic stripe is recorded, by the switching Circuit is switched over so that from the magnetic data for handling the packing density determined to each magnetic track of multiple magnetic tracks The output signal of the process circuit input to the counting circuit.
2. magnetic information reading device as claimed in claim 1, it is characterised in that
The medium inserts detection header arrangement near the insert port of the magnetic information recording medium,
The data solution call header is used in the direction of insertion of the magnetic information recording medium relative to medium insertion detection Header arrangement is more inboard.
CN201510127780.0A 2010-01-04 2010-12-31 Magnetic information reading device Expired - Fee Related CN104751091B (en)

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