CN107094037B - The front end hardware circuit of dynamic token and its method for awarding seed or production configuration - Google Patents
The front end hardware circuit of dynamic token and its method for awarding seed or production configuration Download PDFInfo
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- CN107094037B CN107094037B CN201710184295.6A CN201710184295A CN107094037B CN 107094037 B CN107094037 B CN 107094037B CN 201710184295 A CN201710184295 A CN 201710184295A CN 107094037 B CN107094037 B CN 107094037B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims description 19
- 238000005070 sampling Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
- H04L9/3228—One-time or temporary data, i.e. information which is sent for every authentication or authorization, e.g. one-time-password, one-time-token or one-time-key
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
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Abstract
The present invention is suitable for near-field communication field, provide front end hardware circuit, dynamic token, card reader, OTP near field communication system and the method for awarding seed or production configuration of dynamic token, the method that card reader awards seed to dynamic token or write-in production configures of a kind of dynamic token, the circuit is built by discrete device, including near field coil, matching capacitance；Detection unit obtains former modulated signal, detection unit is connect near field coil for filtering out received seed or producing the carrier wave in configuration data；Communication interface pin units, for exporting former modulated signal to micro-control unit, communication interface pin units are connected between detection unit and micro-control unit.The present invention awards seed by the realization of the front end hardware circuit of the dynamic token built based on discrete device or production configures, no setting is required contact, avoids the complexity of the processing step as caused by secondary encapsulation, and production life cycle is long and problem at high cost.
Description
Technical field
The invention belongs to near-field communication field more particularly to a kind of front end hardware circuit of dynamic token, dynamic token, readings
The method for awarding seed or production configuration of card device OTP near field communication system and dynamic token, card reader award seed to dynamic token
Or the method for write-in production configuration.
Background technique
Near-field communication technology is by non-contact radio-frequency identification (Radio Frequency Identification, RFID)
And interconnection technology integration is evolved, and combines induction type reader, icah wavw and point-to-point on a single chip
Function can be identified and exchanged data in short distance with compatible equipment.This technology is widely used at present, as bank is double
Interface card, novel visual bank card, OTP (One-time Password, dynamic token) card etc..
However, at present when producing OTP card, generally transmit data using contact contact, do production configuration and
Client requires to reserve contact in structure, causes product fully enclosed, need awarding seed when OTP awards seed
After carry out secondary encapsulation, technique is cumbersome, leads to that the production cost increases.
Summary of the invention
The front end hardware circuit for being designed to provide a kind of dynamic token of the embodiment of the present invention, it is intended to solve existing OTP
Card needs reserving the problem of contact results in the need for secondary encapsulation in structure using contact contact transmission data.
The embodiments of the present invention are implemented as follows, a kind of front end hardware circuit of dynamic token, and the circuit passes through discrete
Device is built, comprising:
Near-field communication aerial, detection unit and communication interface pin units；
The near-field communication aerial includes near field coil and matching capacitance, the frequency of the near field coil and the carrier wave of selection
Frequency matching；
The detection unit, for filter out received seed or produce configuration data in carrier wave, obtain former modulated signal,
The detection unit is connect with the near field coil；
The communication interface pin units, for exporting the former modulated signal to micro-control unit, the communication is connect
Mouth pin units are connected between the output end of the detection unit and the input and output pin of the micro-control unit.
The another object of the embodiment of the present invention is, provides a kind of moving for front end hardware circuit including above-mentioned dynamic token
State token.
The another object of the embodiment of the present invention is, provides a kind of reading of front end hardware circuit including above-mentioned dynamic token
Card device.
The another object of the embodiment of the present invention is, provides a kind of OTP near field communication system, and the system comprises above-mentioned dynamic
State token and above-mentioned card reader.
The another object of the embodiment of the present invention is, provides and a kind of awarding seed or production configuration based on above-mentioned dynamic token
Method, which comprises
Receive the seed or production configuration data that reader is sent；
The seed is filtered by detection unit or produces the carrier signal in configuration data, obtains former modulated signal；
The former modulated signal is exported by communication interface pin units to micro-control unit；
It is informed to reader and completes to award kind or production configuration.
The another object of the embodiment of the present invention is, provides a kind of card reader based on above-mentioned card reader and awards to dynamic token
Seed or the method for write-in production configuration, which comprises
Seed or production configuration data are modulated by carrier wave, generates and sends information, the transmission information includes: mark
The signal of the modulation format of the frequency modulation or amplitude modulation of quasi- interface signal or customized low speed；
The transmission information is sent to dynamic token by communication interface pin units, so that the dynamic token is completed
Award seed or production configuration；
Receive and demodulate the informing signal that kind or production configuration are awarded in the completion that the dynamic token is sent.
The embodiment of the present invention by the realization of the front end hardware circuit of the dynamic token built based on discrete device award seed or
Person produces configuration, and the program is not necessarily to that contact is arranged in OTP card, does not need secondary encapsulation, only can be realized by wireless communication,
It is complicated so as to avoid existing OTP card processing step as caused by secondary encapsulation, production life cycle length and problem at high cost.
Detailed description of the invention
Fig. 1 is the structure chart of the front end hardware circuit of dynamic token provided in an embodiment of the present invention；
Fig. 2 is the exemplary circuit figure of the front end hardware circuit of dynamic token provided in an embodiment of the present invention；
Fig. 3 is the exemplary circuit figure of detection unit in the front end hardware circuit of dynamic token provided in an embodiment of the present invention；
Fig. 4 is the exemplary circuit of rear end matching unit in the front end hardware circuit of dynamic token provided in an embodiment of the present invention
Figure；
Fig. 5 is the flowage structure figure of the method for awarding seed or production configuration of dynamic token provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The embodiment of the present invention by the realization of the front end hardware circuit of the dynamic token built based on discrete device award seed or
Person produces configuration, and the program is not necessarily to that contact is arranged in OTP card, does not need secondary encapsulation, only can be realized by wireless communication,
It is complicated so as to avoid existing OTP card processing step as caused by secondary encapsulation, production life cycle length and problem at high cost.
Fig. 1 shows the structure of the front end hardware circuit of dynamic token provided in an embodiment of the present invention, for ease of description,
Only the parts related to the present invention are shown.
As an embodiment of the present invention, the front end hardware circuit of the dynamic token can be applied to dynamic token, card reader
And in OTP near field communication system, the front end hardware circuit of the dynamic token is built by discrete device, comprising:
Near-field communication aerial, detection unit 100 and communication interface pin units 14；
Near-field communication aerial includes near field coil 2 and matching capacitance C1, the frequency of near field coil 2 and the carrier frequency of selection
Matching；
Detection unit 100 includes one-way conduction unit 11 and filter unit 12, is matched for filtering out received seed or production
The carrier wave in data is set, former modulated signal is obtained, detection unit 100 is connect near field coil 2；
Communication interface pin units 14, for exporting former modulated signal to micro-control unit MCU, communication interface pin list
Member 14 is connected between detection unit and micro-control unit MCU.
In embodiments of the present invention, near-field communication aerial receives the seed or production configuration data that reader is sent, and will plant
Son or production configuration data filter the carrier signal of modulated signal by detection unit 100, obtain former modulated signal, and original is adjusted
Signal processed is exported by communication interface pin units 14 to micro-control unit MCU, and is informed to reader and completed to award kind or production
Configuration.
The embodiment of the present invention by the realization of the front end hardware circuit of the dynamic token built based on discrete device award seed or
Person produces configuration, and the program is not necessarily to that contact is arranged in OTP card, does not need secondary encapsulation, only can be realized by wireless communication,
It is complicated so as to avoid existing OTP card processing step as caused by secondary encapsulation, production life cycle length and problem at high cost.
Fig. 2 shows the exemplary circuit of the front end hardware circuit of dynamic token provided in an embodiment of the present invention, for the ease of
Illustrate, only the parts related to the present invention are shown.
As an embodiment of the present invention, detection unit 100 includes one-way conduction unit 11 and filter unit 12；
One-way conduction unit 11 can be realized using diode, triode or metal-oxide-semiconductor, it is preferred to use diode D1, this two
The anode of pole pipe D1 is that the input terminal of one-way conduction unit 11 is connect near field coil 2, and the cathode of diode D1 is one-way conduction
The output end of unit 11 is connect with filter unit 12.
Filter unit 12 includes:
Resistance R2 and capacitor C2；
One end of resistance R2 is that the input terminal of filter unit 12 is connect with the output end of one-way conduction unit 11, resistance R2's
One end is that the output end of filter unit 12 is connect with one end of capacitor C2 simultaneously, and one end of capacitor C2 is the output of filter unit 12
End is connect with communication interface pin units 14, and the other end of resistance R2 is grounded simultaneously with the other end of capacitor C2.
Above-mentioned filter unit 12 can also be substituted by other equivalent devices or circuit, and filter unit 12 can also be with
11 Opposite direction connection of one-way conduction unit, the i.e. input terminal of filter unit 12 are connect near field coil 2, the output end of filter unit 12
It is connect with the input terminal of one-way conduction unit 11, the output end connection communication interface pin unit 14 of one-way conduction unit 11, such as
Shown in Fig. 3, filter unit 12 can also include:
Resistance R5, capacitor C4 and inductance L1；
One end of capacitor C4 is the input terminal of filter unit 12, and the other end of capacitor C4 is that the output end of filter unit 12 connects
It connects, the other end of capacitor C4 also passes through resistance R5 and is grounded, and inductance L1 is in parallel with capacitor C4.
It preferably, can be with series resistance between the output end of one-way conduction unit 11 and the input terminal of filter unit 12
R3 is for carrying out load control.
As an embodiment of the present invention, the front end hardware circuit of the dynamic token can also include:
Modulation unit 13 is loaded, carry out load modulation for the load variation by control near field coil 2 and is sent completely
The modulated signal of kind or production configuration is awarded, load modulation unit 13 is connect with detection unit 100.
As an embodiment of the present invention, load modulation unit 13 includes:
On-off circuit module 131 and load control module 132；
The first end of load control module 132 is connect with the output end of one-way conduction unit 11, load control module 132
Second end is connect with the current input terminal of on-off circuit module 131, the current output terminal ground connection of on-off circuit module 131, switch
The first control terminal GPIO, the second control terminal TX of circuit module 131 pass through communication interface pin units 14 and microcontroller list respectively
The input/output interface GPIO of first MCU, signal end TX connection is sent.
Preferably, on-off circuit module 131 includes:
Second switch Q2 and third switching tube Q3；
The current input terminal of second switch Q2 is the current input terminal of on-off circuit module 131, second switch Q2's
Current output terminal is the current output terminal of on-off circuit module 131, and the control terminal of second switch Q2 is with third switching tube Q3's
Current output terminal connection, the current input terminal of third switching tube Q3 are the first control terminal of on-off circuit module 131, third switch
The control terminal of pipe Q3 is the second control terminal of on-off circuit module 131.
In embodiments of the present invention, second switch Q2 and third switching tube Q3 constitutes switching circuit, passes through opening for metal-oxide-semiconductor
Concern changes the load that can change coil, and coil load changes the transmit coil that can be coupled to reader end, what reader passed through
Transmit coil load variation can demodulate modulation intelligence.
False triggering in order to prevent, it is same by TX and bus extender (General Purpose Input Output, GPIO)
When control load switch.
Certainly, on-off circuit module 131 can also be realized by a switching tube, or use a switching tube and concatenation
Resistance at switch controlled end is realized.
In embodiments of the present invention, on-off circuit module 131 plays load modulating action, can be only there are two switch shape
The load modulation of state or a range,
Load control module 132 includes:
Resistance R4；
The both ends of resistance R4 are respectively the first end and second end of load control module 132.
Optionally, resistance R4 can also be connected in parallel with a capacitor, and form load control module 132.
Communication interface pin units 14 are made of RX, TX pin, and RX/TX can be directly connected to micro-control unit MCU etc.
Chip, or the chips such as micro-control unit MCU are connected to by rear end matching unit.
Fig. 4 shows the example of rear end matching unit in the front end hardware circuit of dynamic token provided in an embodiment of the present invention
Circuit, for ease of description, only the parts related to the present invention are shown.
As an embodiment of the present invention, the front end hardware circuit of the dynamic token further include:
Signal after matching for former modulated signal to be made decisions matching, and is passed through communication by rear end matching unit 15
Interface pin unit 14 is exported to micro-control unit MCU, and rear end matching unit 15 is connected to detection unit 100 and draws with communication interface
Between foot unit 14.
Rear end matching unit 15, which can use, compares judgement unit or the realization of AD sampling unit.
Specifically, comparing judgement unit includes:
Comparator U1 and resistance R2, resistance R3；
The positive input of comparator U1 is connect with the output end of filter unit 12, and the reverse input end of comparator U1 passes through
Resistance R2 ground connection, the reverse input end of comparator U1 also pass through resistance R3 and connect with the input/output interface of micro-control unit MCU,
The output end of comparator U1 is connect with the reception signal end of micro-control unit MCU.
In embodiments of the present invention, valid data are differentiated by comparing judgement unit, resistance R2, electricity can be passed through
It hinders R3 and amplitude threshold is set, comparator U1 compared with amplitude threshold, if input value is greater than amplitude threshold, compares current input value
High level signal is exported compared with device U1, if input value is less than amplitude threshold, comparator U1 exports low level signal, and by output
Low and high level signal is sent to processing chip and carries out back-end processing.
Draw it is, of course, also possible to be connected to detection unit 100 as AD sampling unit using analog-digital converter with communication interface
Between foot unit 14.
In embodiments of the present invention, by AD sampled sense voltage range value, voltage amplitude value meets or exceeds restriction threshold
When value, sampling unit exports high level, and when voltage amplitude value is lower than threshold value is limited, sampling unit exports low level, when AD is sampled,
Modulation system is not limited to OOK, extracts the waveform of former modulation intelligence, can also use other modulator approaches such as ASK.
The embodiment of the present invention by the realization of the front end hardware circuit of the dynamic token built based on discrete device award seed or
Person produces configuration, and the program is not necessarily to that contact is arranged in OTP card, does not need secondary encapsulation, only can be realized by wireless communication,
It is complicated so as to avoid existing OTP card processing step as caused by secondary encapsulation, production life cycle length and problem at high cost.
Fig. 5 is the flowage structure of the method for awarding seed or production configuration of dynamic token provided in an embodiment of the present invention, is
Convenient for explanation, only the parts related to the present invention are shown.
The dynamic token award seed or production configuration method based on the above embodiment in OTP card in dynamic token
Front end hardware circuit realize, include the following steps:
Step S101 receives seed or production configuration data that reader is sent；
When the seed or production configuration data that send in reader toward OTP card, reader provides carrier signal.The reader
Carrier signal is modulated by ASK (amplitude shift key modulation) or OOK (on-off keying) according to information is sent, certainly, the reading
The equivalent effect of amplitude modulation can also be reached by deviateing the matching frequency of coil by adjusting carrier frequency indirectly by writing device.
It is to be noted that the information sent can be existing standard interface signal, and such as UART, IIC, SPI, single wire transmission agreement etc.,
It is also possible to the signal of the modulation formats such as frequency modulation, the amplitude modulation of customized low speed, the waveform of signal can be rectangular wave, sine
Wave, triangular wave or waveform customization.
Seed or production configuration data are filtered the carrier signal of modulated signal by detection unit, obtained by step S102
Former modulated signal, and former modulated signal is exported by communication interface pin units to micro-control unit；
Wherein, communication interface pin units include RX pin.Tentative standard interface signal is UART signal, then is drawn by RX
Foot, UART interface are exported to micro-control unit MCU.Due to being not necessarily to handle received modulated signal, it greatly simplifies
Rear end receives treatment process, achievees the effect that transparent transmission.
Step S103 is informed to reader and is completed to award kind or production configuration.
As a preferred embodiment of the present invention, can also be to seed or production configuration data encryption, specifically, in step
Before S101: the default dynamic encryption password negotiated with reader；
After step slol: verifying seed or produce in configuration data the dynamic encryption password that carries whether with it is preset
Dynamic encryption password is consistent；
If so, thening follow the steps S102；
Institute is no, then does not operate or issue miscue.
In embodiments of the present invention, for greater safety, before communicating, dynamic token first carries out one-way or bi-directional with reader
Certification then communicated after certification passes through.
As a preferred embodiment of the present invention, in step s 103, former modulated signal is passed through communication interface pin units
The step of output is to micro-control unit can be with specifically:
Former modulated signal is exported to rear end matching unit and makes decisions matching by step S1031；
Step S1032 exports the signal after matching to micro-control unit by communication interface pin units.
Optionally, in step S1031, conversion can be made decisions to former modulated signal according to amplitude threshold and realizes judgement
Matching；
It can also be by carrying out AD sampling to former modulated signal, and sampled value is generated according to the voltage amplitude value that sampling is read
Realize judgement matching.
As a preferred embodiment of the present invention, step S103 can be by communication interface pin units directly from microcontroller list
Member, which obtains, completes to award kind or the signal of production configuration is sent to reader realization:
Step S103 can also directly be obtained from micro-control unit by communication interface pin units and be completed to award kind or production
The signal of configuration, and the modulated signal realization for awarding kind or production configuration is sent completely to reader after carrying out load modulation.
In embodiments of the present invention, the switch in load modulation unit can be controlled by switching signal by micro-control unit
Circuit module is in an off state, so that the electric current for the near-field communication aerial being made up of near field coil and matching capacitance is less,
When the non-front end B that connects is in reception state, on-off circuit module or switching device are in an off state, at this point, near-field communication aerial
Equivalent impedance is very big, by electric current very little, keep low power consumpting state, hardly consumption RF energy, in the same circuit board
Upper there are many when the coil of near field, OTP card also hardly consumes RF energy, and avoiding influences other communication coils.
As an embodiment of the present invention, in card reader one end, based on the card reader of card reader to dynamic token award seed or
Write-in produces the method configured
Step S201 is modulated seed or production configuration data by carrier wave, generates and send information, send packet
It includes: the signal of the modulation format of the frequency modulation or amplitude modulation of standard interface signal or customized low speed；
Step S202 will send information by communication interface pin units and be sent to dynamic token, so that dynamic token is complete
It is configured at awarding seed or producing；
Step S203, receives and the informing signal of kind or production configuration is awarded in the completion for demodulating dynamic token transmission.
The embodiment of the present invention by the realization of the front end hardware circuit of the dynamic token built based on discrete device award seed or
Person produces configuration, and the program is not necessarily to that contact is arranged in OTP card, does not need secondary encapsulation, only can be realized by wireless communication,
It is complicated so as to avoid existing OTP card processing step as caused by secondary encapsulation, production life cycle length and problem at high cost.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (13)
1. a kind of front end hardware circuit of dynamic token, which is characterized in that the circuit is built by discrete device, comprising:
Near-field communication aerial, detection unit and communication interface pin units；
The near-field communication aerial includes near field coil and matching capacitance, the frequency of the near field coil and the carrier frequency of selection
Matching；
The detection unit, for filter out received seed or produce configuration data in carrier wave, obtain former modulated signal, it is described
The input terminal of detection unit is connect with the near field coil；
The communication interface pin units, for exporting the former modulated signal to micro-control unit, the communication interface is drawn
Foot unit is connected between the output end of the detection unit and the input and output pin of the micro-control unit；
Wherein, the detection unit includes one-way conduction unit and filter unit；
The one-way conduction unit is diode, triode or metal-oxide-semiconductor；
The filter unit includes:
Resistance R2 and capacitor C2；
One end of the resistance R2 is that the input terminal of the filter unit is connect with the output end of the one-way conduction unit, described
The input terminal of one-way conduction unit is connect with the near field coil, and one end of the resistance R2 is simultaneously the defeated of the filter unit
Outlet is connect with one end of the capacitor C2, and one end of the capacitor C2 is that the output end of the filter unit connects with described communicate
Mouth pin units connection, the other end of the resistance R2 and the other end of the capacitor C2 are grounded simultaneously；
Or, the filter unit includes:
Resistance R5, capacitor C4 and inductance L1；
One end of the capacitor C4 is that the input terminal of the filter unit is connect with the near field coil, and the capacitor C4's is another
End is that the output end of the filter unit is connect with the input terminal of the one-way conduction unit, the output of the one-way conduction unit
End is connect with the communication interface pin units, and the other end of the capacitor C4 also passes through the resistance R5 ground connection, the inductance
L1 is in parallel with the capacitor C4.
2. the circuit stated such as claim 1, which is characterized in that the circuit further include:
Rear end matching unit for the former modulated signal to be made decisions matching, and the signal after matching is connect by communication
Mouth pin units are exported to the micro-control unit, and the rear end matching unit is connected to the detection unit and connects with described communicate
Between mouth pin units.
3. circuit as claimed in claim 2, which is characterized in that the rear end matching unit is to compare judgement unit or AD sampling list
Member；
It is described relatively judgement unit include:
Comparator and resistance R2, resistance R3；
The positive input of the comparator is connect with the output end of the filter unit, and the reverse input end of the comparator is logical
The resistance R2 ground connection is crossed, the reverse input end of the comparator also passes through the input of the resistance R3 and the micro-control unit
Output interface connection, the output end of the comparator are connect with the reception signal end of the micro-control unit；
The AD sampling unit is analog-digital converter.
4. circuit as described in claim 1, which is characterized in that the circuit further include:
Modulation unit is loaded, carries out load modulation and be sent completely to award kind for the load variation by controlling the near field coil
Or the modulated signal of production configuration, the load modulation unit are connect with the detection unit.
5. the circuit stated such as claim 4, which is characterized in that the load modulation unit includes:
On-off circuit module and load control module；
The first end of the load control module is connect with the output end of the one-way conduction unit, the load control module
Second end is connect with the current input terminal of the on-off circuit module, the current output terminal ground connection of the on-off circuit module, institute
State the first control terminal of on-off circuit module, the second control terminal passes through communication interface pin units and the micro-control unit respectively
Input/output interface, send signal end connection.
6. a kind of dynamic token, which is characterized in that the dynamic token includes that dynamic as described in any one in claim 1-5 enables
The front end hardware circuit of board.
7. a kind of card reader, which is characterized in that the front end hardware circuit of the card reader is as described in claim any one of 1-5
Front end hardware circuit.
8. a kind of OTP near field communication system, which is characterized in that the system comprises dynamic token as claimed in claim 6 and
Card reader as claimed in claim 7.
9. a kind of method for awarding seed or production configuration of dynamic token, which is characterized in that the method is based on such as claim 6
The dynamic token, which comprises
Receive the seed or production configuration data that reader is sent；
The seed is filtered by detection unit or produces the carrier signal in configuration data, obtains former modulated signal；
The former modulated signal is exported by communication interface pin units to micro-control unit；
It is informed to reader and completes to award kind or production configuration.
10. method as claimed in claim 9, which is characterized in that described that the former modulated signal is passed through communication interface pin
The step of unit is exported to micro-control unit specifically:
The former modulated signal is exported to rear end matching unit and makes decisions matching；
Signal after matching is exported by communication interface pin units to micro-control unit.
11. method as claimed in claim 10, which is characterized in that made decisions according to amplitude threshold to the former modulated signal
Judgement matching is realized in conversion；Or
By carrying out AD sampling to the former modulated signal, and the voltage amplitude value read according to sampling generates sampled value realization and sentences
Certainly match.
12. method as claimed in claim 9, which is characterized in that described to complete to award kind to reader informing or produce configuration
Step specifically:
The former modulated signal is responded in the micro-control unit, after generating response signal, according to the response signal
Control load modulation unit carries out load modulation by the load variation that the load modulation unit controls the near field coil；
Modulated response signal is sent to the reader.
13. a kind of method that card reader awards seed or write-in production configuration to dynamic token, which is characterized in that the method is based on
Card reader as claimed in claim 7, which comprises
Seed or production configuration data are modulated by carrier wave, generates and sends information, the transmission information includes: that standard connects
The signal of the modulation format of the frequency modulation or amplitude modulation of message number or customized low speed；
The transmission information is sent to dynamic token by communication interface pin units, so that kind is awarded in dynamic token completion
Son or production configuration；
Receive and demodulate the informing signal that kind or production configuration are awarded in the completion that the dynamic token is sent.
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| CN201710184295.6A CN107094037B (en) | 2017-03-24 | 2017-03-24 | The front end hardware circuit of dynamic token and its method for awarding seed or production configuration |
| PCT/CN2018/080227 WO2018171723A1 (en) | 2017-03-24 | 2018-03-23 | Near field communication front-end hardware circuit, terminal, reader/writer, system and method |
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| CN201710184295.6A CN107094037B (en) | 2017-03-24 | 2017-03-24 | The front end hardware circuit of dynamic token and its method for awarding seed or production configuration |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104823204A (en) * | 2012-12-12 | 2015-08-05 | 索尼公司 | Communication device, communication method, integrated circuit, and electronic instrument |
| CN105812127A (en) * | 2016-05-24 | 2016-07-27 | 飞天诚信科技股份有限公司 | NFC dynamic token and working method thereof |
| US9489672B1 (en) * | 2011-10-17 | 2016-11-08 | Capital One Financial Corporation | System and method for providing contactless payment with a near field communications attachment |
| CN206698220U (en) * | 2017-03-24 | 2017-12-01 | 深圳市文鼎创数据科技有限公司 | The front end hardware circuit and dynamic token of a kind of dynamic token |
-
2017
- 2017-03-24 CN CN201710184295.6A patent/CN107094037B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9489672B1 (en) * | 2011-10-17 | 2016-11-08 | Capital One Financial Corporation | System and method for providing contactless payment with a near field communications attachment |
| CN104823204A (en) * | 2012-12-12 | 2015-08-05 | 索尼公司 | Communication device, communication method, integrated circuit, and electronic instrument |
| CN105812127A (en) * | 2016-05-24 | 2016-07-27 | 飞天诚信科技股份有限公司 | NFC dynamic token and working method thereof |
| CN206698220U (en) * | 2017-03-24 | 2017-12-01 | 深圳市文鼎创数据科技有限公司 | The front end hardware circuit and dynamic token of a kind of dynamic token |
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