CN102446525B - Magnetic recording method and equipment - Google Patents
Magnetic recording method and equipment Download PDFInfo
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- CN102446525B CN102446525B CN201010298242.5A CN201010298242A CN102446525B CN 102446525 B CN102446525 B CN 102446525B CN 201010298242 A CN201010298242 A CN 201010298242A CN 102446525 B CN102446525 B CN 102446525B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
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Abstract
The invention discloses a magnetic recording method and magnetic recording equipment, wherein the magnetic recording method comprises steps of: receiving information of bills; obtaining additional information, wherein the additional information is used for identifying the effectiveness of the magnetic bills; recording the information of the bills by a first recording manner; and recording the additional information by a second recording manner. The invention is adopted, so that the magnetic information recorded in the magnetic bills is hard to be copied.
Description
Technical field
The present invention relates to a kind of magnetic recording method and device.
Background technology
Utilizing the magnetic information on magnetic ticket to carry out information record and be used as evidence for payment, is a kind of technology of widespread use.When magnetic stripe carries out magnetic information recording, conventional recording mode is F2F recording mode, namely double frequency phase is concerned with encoded recording mode, be specially and have a flux reversal to be designated as " 1 ", to be designated as " 0 " without flux reversal between two clocks, this kind of magnetic information recording mode only make use of frequency signal recorded information, and the amplitude of magnetic signal not carry information.Conventional magnetic information recording equipment, as the magnetic ticket making machine used in industry in high ferro, subway, also adopt F2F recording mode, because the recording mode of this magnetic information is without any anti-copying measure, simply read magnetic device can read magnetic information on magnetic stripe as long as use, and copy.
Easily be replicated problem for the magnetic information on magnetic ticket in correlation technique, not yet propose effective solution at present.
Summary of the invention
The problem be easily replicated for the magnetic information on magnetic ticket and propose the present invention, for this reason, fundamental purpose of the present invention is to provide a kind of magnetic recording method and device, to solve the problem.
To achieve these goals, according to an aspect of the present invention, a kind of magnetic recording method is provided.This magnetic recording method comprises: receive billing information; Obtain additional information, wherein, additional information is the information of mark magnetic ticket validity; Adopt billing information described in the first recording mode record; And adopt additional information described in the second recording mode record.
To achieve these goals, according to a further aspect in the invention, a kind of magnetic recording system is provided.This magnetic recording system comprises: obtain mechanism, for obtaining additional information; Communication unit, for receiving billing information; Recording mechanism, for adopting billing information described in the first recording mode record; And adopt additional information described in the second recording mode record.
By the present invention, adopt and receive billing information; Obtain additional information, wherein, additional information is the information of mark magnetic ticket validity; Adopt billing information described in the first recording mode record; And adopt the method for additional information described in the second recording mode record, solve the problem that the magnetic information on magnetic ticket is easily replicated, and then reach and make the magnetic information on magnetic ticket be difficult to be replicated, and improve the effect of magnetic ticket security further.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Figure 1A is the schematic diagram of magnetic recording system according to a first embodiment of the present invention;
Figure 1B is the schematic diagram of magnetic recording system according to a second embodiment of the present invention;
Fig. 2 is the schematic diagram of magnetic recording system according to a third embodiment of the present invention;
Fig. 3 is the schematic diagram of the magnetic recording system modulator according to the embodiment of the present invention;
Fig. 4 A is the process flow diagram of the first embodiment of magnetic information recording method according to the embodiment of the present invention;
Fig. 4 B is the process flow diagram of the second embodiment of magnetic information recording method according to the embodiment of the present invention;
Fig. 5 is the process flow diagram of the 3rd embodiment of magnetic information recording method according to the embodiment of the present invention;
Fig. 6 is the schematic diagram of the many amplitude codings according to the embodiment of the present invention;
Fig. 7 is the signal waveform schematic diagram of the F2F coding of the embodiment of the present invention;
Fig. 8 is the signal waveform schematic diagram of 4 amplitude codings according to a first embodiment of the present invention;
Fig. 9 be the signal waveform of the signal waveform of 4 amplitude codings according to Fig. 8 and the F2F coding shown in Fig. 6 generate write magnetic signal waveform schematic diagram;
Figure 10 is the signal waveform schematic diagram of 4 amplitude codings according to a second embodiment of the present invention;
Figure 11 be the signal waveform of the signal waveform of 4 amplitude codings according to Figure 10 and the F2F coding shown in Fig. 6 generate write magnetic signal waveform schematic diagram.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Figure 1A is the schematic diagram of magnetic recording system according to a first embodiment of the present invention.
As shown in Figure 1A, this magnetic recording system comprises: obtain mechanism 10, communication unit 16 and recording mechanism 11.
Wherein, obtain mechanism 10 for obtaining additional information, wherein, described additional information is the information of mark magnetic ticket validity; Communication unit 16 is for receiving billing information; Recording mechanism 11 is for adopting billing information described in the first recording mode record; And adopt additional information described in the second recording mode record.
For the recording mechanism 11 in this embodiment, can for adopting the recording mechanism of different modulating mode.
In this embodiment, because recording mechanism in magnetic recording system adopts different recording modes to record the additional information of billing information and mark magnetic ticket validity respectively, when copying the magnetic information in magnetic ticket, not only need to utilize different modes to read billing information, additional information, but also need to adopt different recording mode to carry out record to billing information, additional information, thus can effectively increase the difficulty of reproduction of magnetic information in magnetic ticket.
Figure 1B is the schematic diagram of magnetic recording system according to a second embodiment of the present invention.
In this embodiment, recording mechanism 11 comprises modulator 24 and writes magnetic cell 26.
As shown in Figure 1B, this magnetic recording system comprises: obtain mechanism 10, communication unit 16 modulator 24 and write magnetic cell 26.
Wherein, obtain mechanism 10, for obtaining additional information, wherein, described additional information is the information of mark magnetic ticket validity; Communication unit 16, for receiving billing information; Modulator 24, for modulating billing information and additional information, wherein, the first modulation is carried out to billing information, the second modulation is carried out to additional information, such as, frequency modulation is carried out to billing information, amplitude modulation is carried out to additional information, or, also can carry out amplitude modulation to billing information, frequency modulation is carried out to additional information; And write magnetic cell 26, for billing information and additional information being recorded in magnetic ticket according to the signal after modulation.
In this embodiment, owing to adding the additional information of mark magnetic ticket validity, and different modulation systems is adopted to billing information and additional information, namely, different recording modes is adopted to billing information and additional information, thus, adds the difficulty of reproduction of magnetic information, simultaneously because additional information can verify the validity of magnetic ticket, therefore improve the security of magnetic ticket.
Fig. 2 is the schematic diagram of the magnetic recording system of third embodiment of the invention, is described below according to figure.
As shown in Figure 2, magnetic recording system comprises: controller 12, communication unit 16, to the information process unit 18 that bill data processes, carry out the first scrambler 20, second scrambler 22 of data encoding, to the modulator 24 that coded data is modulated, write magnetic cell 26 and store the storage unit 14 of various data.
Wherein, controller 12, receives and analyzes various data, controls according to the operation of different data to corresponding module.Such as, control communication unit 24 and the data communication between main frame or network equipment (not shown) etc., control information control module 18 carries out billing information process, control the first scrambler 20 couples of billing information D1, the second scrambler 22 couples of additional information D2 encode, control to write magnetic cell 26 and carry out writing magnetic operation etc.
Communication unit 16, for controller 12 and the data interaction between main frame or network equipment (not shown) etc. provide communication path, as received the processing instruction etc. writing magnetic instruction, billing information of billing information.
Information process unit 18, is processed the billing information received from communication unit 16 according to certain rule, generates the additional information of billing information, can be tested by this additional information to billing information, thus the validity of checking magnetic ticket; Wherein, billing information D1 is sent to the first scrambler 20, additional information D2 and is sent to the second scrambler 22.
First scrambler 20, carries out the first coding according to certain rule to billing information D1, and conventional coded system is F2F coding, i.e. the relevant coding of double frequency phase; The first coding data D11 generated after coding is sent to modulator 24.
Second scrambler 22, carries out the second coding according to the coding rule being different from the first scrambler to additional information D2, and conventional coded system is many amplitude codings, and the second encoded data D 21 generated after coding is sent to modulator 24.
Preferably, be modulated to frequency modulation first, second when being modulated to amplitude modulation, and the first scrambler is used for carrying out the relevant coding of double frequency phase to billing information, and the second scrambler is used for carrying out many amplitude codings to additional information; Be modulated to amplitude modulation first, second when being modulated to frequency modulation, and the first scrambler is used for carrying out many amplitude codings to billing information, and the second scrambler is used for carrying out the relevant coding of double frequency phase to additional information.
Modulator 24, the second encoded data D 21 that the first coding data D11 generate the first scrambler 20 and the second scrambler 22 generate is modulated, digital signal is become simulating signal, generates the analog control signal M0 of compound, control the changes of magnetic field writing magnetic cell 26.
Write magnetic cell 26, the simulating signal M0 generated by modulator 24 controls the changes of magnetic field write in magnetic cell 26, as the change of magnetic direction, the change etc. of magnetic field intensity, the magnetic stripe on magnetic ticket is magnetized, billing information D1 and additional information D2 is recorded on magnetic ticket magnetic stripe.
Storage unit 14, for temporarily storing the various data in magnetic recording system, as bill data D1, additional data D2, first coding data D11, the second encoded data D 21 etc.
Acquisition mechanism 10 in first embodiment can comprise communication unit 16 and information process unit 18, for obtaining additional information from outside or generating additional information according to billing information, it also can be the mechanism that controller 12 obtains additional information from storage unit 14.
The above-mentioned magnetic information recording device provided according to the embodiment of the present invention, can by modulating, make magnetic signal amplitude carry information to the amplitude of magnetic signal, then with F2F coded system record billing information, with the additional information of several value coded system record billing informations, by writing magnetic machine, billing information and additional information are write in the magnetic stripe of magnetic ticket.Owing to adopting two kinds of return to zeros to carry out record, thus add the difficulty of reproduction of magnetic information; Simultaneously because additional information can verify the validity of magnetic ticket, therefore further increase the security of magnetic ticket information.
Fig. 3 is the schematic diagram of modulator, and the composition of this modulator is described below with reference to Fig. 3.
Modulator comprises frequency interleaved modulation modulator 241, amplitude-modulating modulation device 242 and multiplier 243, wherein, frequency interleaved modulation modulator 241 comprises the first logical transition circuit 2411, full bridge driving circuit 2412, and amplitude-modulating modulation device 242 comprises the second logical transition circuit 2421, variable constant current source circuit 2422; Be specially, the first logical transition circuit 2411 carries out first coding data D11 and inputs logical transition between data to full bridge driving circuit 2412, and first coding data D11 is converted to the first logical data; Second logical transition circuit 2421 carries out the second encoded data D 21 and inputs logical transition between data to variable constant current source current circuit 2422, and the second encoded data D 21 is converted to the second logical data; Full bridge driving circuit 2412 exports the signal M01 controlling to write the change of magnetic cell 26 magnetic direction according to the first logical data; Variable constant current source circuit 2422 exports the signal M02 controlling to write magnetic cell 26 change of magnetic field strength according to the second logical data; The output signal M01 of the full bridge driving circuit 2412 and output signal M02 of variable constant current source circuit 2422 is by being synthesized together after multiplier 243, form signal M0, control to write magnetic cell 26 magnetic field intensity while magnetic direction changes by signal M0 and also can change.
Fig. 4 A is the process flow diagram of the first embodiment according to magnetic information recording method of the present invention, and the method comprises the following steps:
Step S100, receives billing information.
Such as, billing information from external unit can be received via aforesaid communication unit 16.
Step S102, obtains additional information, and wherein, described additional information is the information of mark magnetic ticket validity.
This additional information can be that information process unit 18 processes the billing information received from communication unit 16 and the information obtained, also can be the preset information that magnetic recording system is preset in storage unit 14, as representing the fixed data that billing information amplitude changes; Or magnetic recording system the information such as numbering, magnetic recording system numbering AT STATION.
Step S104, adopts billing information described in the first recording mode record, and adopts additional information described in the second recording mode record.Wherein, adopt in this embodiment different recording modes carry out record can comprise adopt different modulation systems modulate.
Owing to adopting two kinds of return to zeros to carry out record to billing information and additional information respectively, improve the identification difficulty of magnetic information, thus improve the difficulty of reproduction of magnetic ticket.
Fig. 4 B is the process flow diagram of the second embodiment according to magnetic information recording method of the present invention, and detailed treatment scheme is as follows:
Step S10, obtains additional information.
The additional information that magnetic recording system obtains, can be that information process unit 18 processes the billing information received from communication unit 16 and the information obtained, also can be the preset information that magnetic recording system is preset in storage unit 14, as representing the fixed data that billing information amplitude changes; Or magnetic recording system the information such as numbering, magnetic recording system numbering AT STATION.
Step S12, modulates billing information and additional information.
Wherein, frequency modulation is carried out to billing information, and amplitude modulation is carried out to additional information.Wherein, before billing information and additional information are modulated, can also encode to billing information, additional information, and when encoding to billing information, additional information, both can be carried out the first coding, be carried out the second coding by the second scrambler 22 pairs of additional informations by the first scrambler 20 pairs of billing informations, and also can be carried out the second coding, be carried out the first coding by the first scrambler 20 pairs of additional informations by the second scrambler 22 pairs of billing informations.
Step S14, is recorded to billing information and additional information in described magnetic ticket according to the signal after modulation.Or, according to modulation signal, billing information and additional information are recorded on the magnetic track of magnetic ticket.
Rear synthesis is modulated respectively to the data after billing information and encoding additional information, exports the modulation signal after synthesis, then control to write magnetic cell 26 by modulation signal and carry out writing magnetic and operate, billing information and additional information are recorded on magnetic ticket magnetic stripe.
Respectively record is carried out to billing information and additional information by two kinds of return to zeros, improve the identification difficulty of magnetic information, thus improve the difficulty of reproduction of magnetic ticket.
Fig. 5 is the process flow diagram of the 3rd embodiment according to magnetic information recording method of the present invention, and detailed treatment scheme is as follows:
Step S20, processes billing information, generates additional information.
Billing information, refers to the content relevant to magnetic ticket, as initial station, get to the station, the ticket amount of money, the time of departure, the information such as train number; According to certain rule, billing information is processed by information process unit 14, generate additional information, make additional information and billing information have relation one to one; The processing rule of this billing information can be the checking algorithm of setting, as CRC check algorithm etc.; Also can be cryptographic algorithm, as Hash cryptographic algorithm etc.When billing information processing rule is maintained secrecy, common magnetic recording system cannot generate additional information, thus effectively can prevent the bootlegging of magnetic ticket.
Step S22, carries out the first coding to billing information, carries out the second coding to additional information.
Carry out the first coding by the first scrambler 20 pairs of billing informations, conventional coding method is F2F coding; Carry out the second coding by the second scrambler 22 pairs of additional informations, conventional coding method is many amplitude codings.With 4 amplitude codings of Fig. 6, the ultimate principle that several values are encoded, X direction are described, representing data encoding value, can be scale-of-two or the decimal system etc.; Y direction, represents the amplitude of signal; The cryptoprinciple of several values is amplitude corresponding to each data encoding value, and the stepping of amplitude is more, and the data volume of amplitude signal codified is larger; Usually the relation be directly proportional according to numerical value and the amplitude of data is encoded.In Fig. 6, amplitude is divided into 4 grades, and according to arranging from big to small, 4 grades of amplitudes are A3, A2, A1, A0 respectively; The corresponding relation be directly proportional according to numerical value and the amplitude of data carries out the coding between data to amplitude, then data 3 are encoded to amplitude A3, data 2 are encoded to amplitude A2, data 1 are encoded to amplitude A1, data 0 are encoded to amplitude A0; When data are with binary representation, then data 11,10,01,00 are encoded to amplitude A3, A2, A1, A0 respectively, and namely the data encoding of 2 bit long is the amplitude of 4 grades; Because data are usually with binary representation, the amplitude of to be data encoding that n-bit is long be the pass between coded data length and amplitude stepping 2n shelves, n=2,3, the constants such as 4, therefore when carrying out 2n shelves amplitude coding, data are needed to be divided into multiple bit number to be the bit groupings of n, eachly be grouped into n amplitude coding data, the corresponding amplitude of each n amplitude coding data.
The coding method of billing information is described with Fig. 7 below, wherein, billing information is with F2F coding method, its rule is between two clock t, have flux reversal to represent data " 1 ", data " 0 " are represented without flux reversal, both the reversal frequency of magnetic flux changed along with the change of magnetic ticket data, belong to frequency modulation (PFM), equal " 11101101 " for billing information D1 and its F2F coding waveforms is described, in figure, the change of all waveforms is synchronous with CLOCK, sort according to each bit to billing information D1 of order from left to right, then the first bit " 1 " represents between clock t0 ~ t1, have flux reversal (negative edge 40), second bit " 1 " represents between clock t1 ~ t2, have flux reversal (rising edge 41), 4th bit " 0 " represents between clock t3 ~ t4 without flux reversal (amplitude 42), 7th bit " 0 " represents between clock t6 ~ t7 without flux reversal (low amplitude value 43), the waveform of the F2F coded data of billing information D1 is as shown in waveform D11 in Fig. 7.
The coding method of additional information is described jointly with Fig. 8, Figure 10, wherein, additional information is encoded with several value coding methods, be described for 4 amplitude codings, its rule is that amplitude is divided into 4 grades, the numerical value of data and amplitude be directly proportional, the amplitude signal be uniquely distinguished as in Fig. 6 of 4 amplitude coding methods in Fig. 8 and 4 amplitude coding methods in Figure 10 changes once in each clock period amplitude, and the amplitude signal in Fig. 8 changes once in every two clock period amplitudes.The relation between gear number 2n is divided according to the bit length n of coded data and amplitude, to be one group with two (n=2) bit and amplitude coding is carried out to additional information D2, be described for " 0001101110010010 " with additional information D2, when carrying out 4 amplitude coding, after D2 carries out 2 bit component groups, its integrated data is " 00 ", " 01 ", " 10 ", " 11 ", " 10 ", " 01 ", " 00 ", " 10 ".When each clock period amplitude changes once, encoded data D 21_1a is identical with integrated data for its several value, be " 00 ", " 01 ", " 10 ", " 11 ", " 10 ", " 01 ", " 00 ", " 10 ", the amplitude waveform of several values encoded data D 21_1a is as shown in the D21_1b in Fig. 8, and amplitude changes between A0 ~ A3; When every two clock period amplitudes change once, also to process integrated data, each grouping is all repeated once, namely several values encoded data D 21_2a is " 00 ", " 00 ", " 01 ", " 01 ", " 10 ", " 10 ", " 11 ", " 11 ", " 10 ", " 10 ", " 01 ", " 01 ", " 00 ", " 00 ", " 10 ", " 10 ", several values encoded data D 21_2a in Figure 10 only lists front 8 group coding data, its amplitude waveform is as shown in the D21_2b in Figure 10, and amplitude changes between A0 ~ A3.
Certainly, amplitude can also be divided into more grades, amplitude stepping is more, then each amplitude information that can represent is more; Each amplitude changes that the clock period taken is more, then the change frequency of amplitude information is lower, also more reliable when Signal analysis.
Step S24, modulates coded data, writes magnetic operation to billing information and additional information.
Modulator 24 pairs of billing informations carry out frequency modulation, such as, by modulator 24 frequency interleaved modulation modulator 241 first coding data control D11 be converted to controlling magnetic field direction change signal M01; Modulator 24 pairs of additional informations carry out amplitude modulation, such as, by amplitude-modulating modulation device 242, second encoded data D 21 is converted to the signal M02 of controlling magnetic field Strength Changes, then the signal M01 by multiplier 243, controlling magnetic field direction changed and the signal M02 of controlling magnetic field Strength Changes synthesizes can change again can the signal M0 of change of magnetic field strength in controlling magnetic field direction, control by M0 the changes of magnetic field writing magnetic cell 26, billing information and additional information are recorded on magnetic ticket magnetic stripe.
The waveform of signal M01, M02, M0 is described jointly by Fig. 9,11; Wherein, signal M01 is that the first coding data D11 that billing information D1 generates after F2F coding is converted, signal M02_2 in signal M02_1, Figure 10 in Fig. 8 be after additional information D2 encodes according to 4 amplitude coding methods in Fig. 7 respectively generate the second encoded data D 21_1, encode according to 4 amplitude coding methods in Fig. 9 after generate the second encoded data D 21_2 converted, the signal M0_2 in signal M0_1 and Figure 11 in Fig. 9 is that signal M0_1 carries out multiplication operations generation with signal M02_1, M02_2 respectively.As can be seen from Fig. 9, Figure 11, the constant amplitude of signal M01 is constant; The amplitude of signal M02_1 changes between A0 ~ A3, and the change of its each clock period once; The amplitude of signal M02_2 changes between A0 ~ A3, and its every two clock period change once; And signal M0_1, M0_2 not only flow direction switch, its amplitude also changes between A0 ~ A3, and the difference of the two is that each clock period amplitude of signal M0_1 changes 1 time, and every two the clock period amplitudes of signal M0_2 change 1 time.
By processing billing information, and recording the mode of billing information and additional information simultaneously, improve the reliability of billing information record; By carrying out many amplitude codings to additional information, making the mode of magnetic signal amplitude transmission information, not only increasing the recording capacity of magnetic stripe, also improve the difficulty of reproduction of magnetic ticket.
The coded system of magnetic information provided by the invention and the recording mode of magnetic information, can by increasing many amplitude coding method of encoding to magnetic signal amplitude, magnetic information recording mode is made to become from single F2F coded system the mode that F2F encodes and many amplitude codings combine, then, additional information is carried by the amplitude of magnetic signal.
The present invention is by carrying out Data Modulation, mode by magnetic signal amplitude recorded information to many amplitude codings, the magnetic signal amplitude of magnetic stripe on magnetic ticket is made to become controlled orderly change from invariable, therefore, not by means of only flux reversal transmission information and the magnetic signal amplitude yet transmission information of magnetic ticket magnetic stripe, when magnetic ticket is copied, not only to copy the flux change of magnetic stripe, also will copy the amplitude change of magnetic signal, significantly increase the difficulty of reproduction of magnetic ticket; By F2F encoded recording billing information, by several value encoded recording additional informations, the mode of by additional information, billing information being carried out to effectively inspection, improve the reliability of billing information record.
As can be seen from the above description, the present invention by increasing the kind of magnetic information recording mode thus adding the difficulty of reproduction of magnetic information in magnetic ticket, and is convenient to implement, and does not increase magnetic recording equipment cost, effectively refer to the security of magnetic ticket.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a magnetic recording method, is characterized in that, comprising:
Receive billing information;
Obtain additional information, wherein, described additional information is the information of mark magnetic ticket validity;
Adopt billing information described in the first recording mode record; And
Adopt additional information described in the second recording mode record,
Wherein, adopt billing information described in the first recording mode record and adopt additional information described in the second recording mode record to comprise:
Described billing information and described additional information are modulated, comprising:
First modulation is carried out to described billing information;
Second modulation is carried out to described additional information; And
According to the signal after modulation, described billing information and described additional information are recorded in described magnetic ticket,
Wherein, described first modulation and described second modulate in one of be frequency modulation, another is amplitude modulation.
2. magnetic recording method according to claim 1, is characterized in that, before modulating described billing information and described additional information, described method also comprises:
First coding is carried out to described billing information; And
Second coding is carried out to described additional information.
3. method according to claim 2, is characterized in that, is carrying out frequency modulation to described billing information, and when carrying out amplitude modulation to described additional information, described first is encoded to the relevant coding of double frequency phase, and described second is encoded to many amplitude codings; Carrying out amplitude modulation to described billing information, when carrying out frequency modulation to described additional information, described first is encoded to many amplitude codings, and described second is encoded to the relevant coding of double frequency phase.
4. magnetic recording method according to claim 3, is characterized in that,
Carry out frequency modulation to described billing information or described additional information to comprise:
Data after encoding first are converted to the first logical data;
The first signal of controlling magnetic field direction change is obtained according to described first logical data;
Carry out amplitude modulation to described additional information or described billing information to comprise:
Data after encoding second are converted to the second logical data;
The secondary signal of controlling magnetic field Strength Changes is obtained according to described second logical data;
According to the signal after modulation, described billing information and described additional information are recorded to described magnetic ticket to comprise:
Described first signal and described secondary signal are synthesized, obtain can the change of controlling magnetic field direction again can the 3rd signal of controlling magnetic field Strength Changes,
According to described 3rd signal, described billing information and described additional information are recorded in described magnetic ticket.
5. magnetic recording method according to claim 1, is characterized in that, obtains additional information and comprises and obtaining one of in such a way:
Described billing information is processed, obtains described additional information; And
Obtain the additional information prestored.
6. magnetic recording method according to claim 5, is characterized in that, processes described billing information, obtains described additional information and comprises and carry out following process:
Utilize error detection coding method to process described billing information, obtain described additional information; And/or
Utilize encryption method to process described billing information, obtain described additional information.
7. a magnetic recording system, is characterized in that, comprising:
Obtain mechanism, for obtaining additional information, wherein, described additional information is the information of mark magnetic ticket validity;
Communication unit, for receiving billing information; And
Record cell, for adopting billing information described in the first recording mode record, adopts additional information described in the second recording mode record,
Wherein, described record cell comprises:
Modulator, for modulating described billing information and described additional information, wherein, first modulation is carried out to described billing information, the second modulation is carried out to described additional information, wherein, described first modulation and described second modulate in one of be frequency modulation, another is amplitude modulation; And
Write magnetic cell, for described billing information and described additional information being recorded in described magnetic ticket according to the signal after modulation.
8. magnetic recording system according to claim 7, is characterized in that, also comprises:
First scrambler, for carrying out the first coding to described billing information; And
Second scrambler, for carrying out the second coding to described additional information.
9. magnetic recording system according to claim 8, is characterized in that, described modulator comprises:
First logical transition circuit, is converted to the first logical data for the data after encoding first;
Full bridge driving circuit, for exporting the first signal writing the change of magnetic cell magnetic direction described in control according to the first logical data;
Second logical transition circuit, is converted to the second logical data for the data after encoding second;
Variable constant current source circuit, for exporting the secondary signal writing magnetic cell change of magnetic field strength described in control according to the first logical data; And
Multiplier, for described first signal and described secondary signal being synthesized together, forms the 3rd signal,
Wherein, magnetic cell is write described in for described billing information and described additional information being recorded in described magnetic ticket according to described 3rd signal.
10. magnetic recording system according to claim 8, it is characterized in that, frequency modulation is modulated to described first, described second when being modulated to amplitude modulation, described first scrambler is used for carrying out the relevant coding of double frequency phase to described billing information, and described second scrambler is used for carrying out many amplitude codings to described additional information; Be modulated to amplitude modulation described first, described second when being modulated to frequency modulation, and described first scrambler is used for carrying out many amplitude codings to described billing information, and described second scrambler is used for carrying out the relevant coding of double frequency phase to described additional information.
11. magnetic recording systems according to claim 7, is characterized in that, also comprise:
Storage unit, for storing described additional information,
Wherein, described acquisition mechanism is used for obtaining described additional information from described storage unit.
12. magnetic recording systems according to claim 7, is characterized in that, described acquisition mechanism comprises:
Information process unit, for processing described billing information, obtains described additional information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298242.5A CN102446525B (en) | 2010-09-30 | 2010-09-30 | Magnetic recording method and equipment |
| PCT/CN2011/080178 WO2012041206A1 (en) | 2010-09-30 | 2011-09-26 | Magnetic recording method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298242.5A CN102446525B (en) | 2010-09-30 | 2010-09-30 | Magnetic recording method and equipment |
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| CN102446525A CN102446525A (en) | 2012-05-09 |
| CN102446525B true CN102446525B (en) | 2015-04-22 |
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| WO (1) | WO2012041206A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150370210A1 (en) * | 2012-06-25 | 2015-12-24 | Shandong New Beiyang Information Technology Co., Ltd. | Multifunctional magnetic reading device and control method thereof as well as printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937436A (en) * | 1985-07-01 | 1990-06-26 | Mars Incorporated | Magnetically encoded cards |
| CN1346096A (en) * | 2000-09-04 | 2002-04-24 | 日本先锋公司 | Information transmitting method and equipment, information receiving method and equipment, information transmission system and method, and information recording medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683371A (en) * | 1981-02-27 | 1987-07-28 | Drexler Technology Corporation | Dual stripe optical data card |
| JPH083898B2 (en) * | 1987-04-21 | 1996-01-17 | 共同印刷株式会社 | Magnetic recording medium and its authenticity determination method |
| FR2657981A1 (en) * | 1990-02-05 | 1991-08-09 | Kodak Pathe | Process for certifying an information carrier and carrier obtained according to the process |
| MY106779A (en) * | 1990-09-07 | 1995-07-31 | Mitsubishi Heavy Ind Ltd | Magnetic recording method and circuit for toll road ticket. |
| GB2272560B (en) * | 1992-11-14 | 1996-07-17 | Thorn Secure Science Ltd | Writing of a second set of data in dependence upon reading a first set of data |
| CN1130434A (en) * | 1994-07-18 | 1996-09-04 | Ntt数据通信株式会社 | Electronic bankbook and cash transaction information processing system using the same |
| EP0872760A1 (en) * | 1997-04-18 | 1998-10-21 | Eastman Kodak Company | Magnetically coated film with azimuth recorded tracks |
| US6471127B2 (en) * | 2000-07-06 | 2002-10-29 | Bank Of America Corporation | Data card |
| JP2002112175A (en) * | 2000-10-03 | 2002-04-12 | Pioneer Electronic Corp | Information recorder, information recording method and computer-readable recording medium with information recording program recorded thereon |
-
2010
- 2010-09-30 CN CN201010298242.5A patent/CN102446525B/en active Active
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2011
- 2011-09-26 WO PCT/CN2011/080178 patent/WO2012041206A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937436A (en) * | 1985-07-01 | 1990-06-26 | Mars Incorporated | Magnetically encoded cards |
| CN1346096A (en) * | 2000-09-04 | 2002-04-24 | 日本先锋公司 | Information transmitting method and equipment, information receiving method and equipment, information transmission system and method, and information recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102446525A (en) | 2012-05-09 |
| WO2012041206A1 (en) | 2012-04-05 |
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