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CN106941363B - Card reading response method, apparatus and system - Google Patents

Card reading response method, apparatus and system Download PDF

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Publication number
CN106941363B
CN106941363B CN201710058100.3A CN201710058100A CN106941363B CN 106941363 B CN106941363 B CN 106941363B CN 201710058100 A CN201710058100 A CN 201710058100A CN 106941363 B CN106941363 B CN 106941363B
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China
Prior art keywords
signal
carrier signal
phase
frequency
antenna
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CN106941363A (en
Inventor
李东声
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Tendyron Technology Co Ltd
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Tendyron Technology Co Ltd
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Priority to CN201710058100.3A priority Critical patent/CN106941363B/en
Publication of CN106941363A publication Critical patent/CN106941363A/en
Priority to EP18741739.9A priority patent/EP3573247B1/en
Priority to US16/479,600 priority patent/US10873358B1/en
Priority to PCT/CN2018/071398 priority patent/WO2018133676A1/en
Priority to SG11201906743XA priority patent/SG11201906743XA/en
Application granted granted Critical
Publication of CN106941363B publication Critical patent/CN106941363B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

The present invention provides a kind of signal response method, apparatus and system, wherein method include: be 13.56MHz using resonance frequency antenna receive the carrier signal that frequency is 125KHz;Carrier signal is amplified, and analog-to-digital conversion is carried out to amplified signal, obtains digital signal;The characteristics of signals of carrier signal is obtained according to digital signal, characteristics of signals includes at least: frequency and phase;Response data is encoded with frequency, obtains encoded signal, and determines the start-phase of exports coding signal according to phase, by antenna exports coding signal, is superimposed encoded signal at same phase with carrier signal.Signal response method, apparatus and system through the invention, the signal that the antenna transmitting-receiving frequency that the resonance frequency that can use small volume is 13.56MHz is 125KHz, to realize the demand of device miniaturization.

Description

Card reading response method, apparatus and system
Technical field
The present invention relates to the communications field more particularly to a kind of card reading response methods, apparatus and system.
Background technique
Currently, for RFID card, the card of card and 125KHz including at least 13.56MHz.For integrated now Demand for, 13.56MHz mode had not only been set on the same card but be arranged 125KHz mode be there is an urgent need to, so as to So that there are many functions for a fixture, it is easy to use.But since the antenna of 125KHz is larger, be not suitable for making for small device With, therefore, how on small device realize 125KHz mode card be problem in the urgent need to address.
Summary of the invention
Present invention seek to address that the above problem, a kind of card reading response method, apparatus and system are provided.
The main purpose of the present invention is to provide a kind of card reading response methods;
Another object of the present invention is to provide a kind of card reading responding devices;
Another object of the present invention is to provide a kind of card reading response system.
In order to achieve the above objectives, technical solution of the present invention is specifically achieved in that
One aspect of the present invention provides a kind of signal response method, comprising: the antenna for being 13.56MHz using resonance frequency Receive the carrier signal that frequency is 125KHz;Carrier signal is amplified, and analog-to-digital conversion is carried out to amplified signal, is obtained To digital signal;The characteristics of signals of carrier signal is obtained according to digital signal, characteristics of signals includes at least: frequency and phase; Response data is encoded with frequency, obtains encoded signal, and determines the start-phase of exports coding signal according to phase, is led to Antenna exports coding signal is crossed, is superimposed encoded signal at same phase with carrier signal.
In addition, the phase difference of start-phase and carrier signal is 0.
In addition, response data is unique identifier.
Another aspect of the present invention provides a kind of signal responding device, comprising: receiving module, for being using resonance frequency The antenna of 13.56MHz receives the carrier signal that frequency is 125KHz;Signal processing module, for being amplified to carrier signal, And analog-to-digital conversion is carried out to amplified signal, obtain digital signal;Characteristics of signals obtains module, for being obtained according to digital signal The characteristics of signals of carrier signal is taken, characteristics of signals includes at least: frequency and phase;Output module, for by response data with Frequency is encoded, and encoded signal is obtained, and the start-phase of exports coding signal is determined according to phase, is exported and is compiled by antenna Code signal is superimposed encoded signal at same phase with carrier signal.
In addition, the phase difference of start-phase and carrier signal is 0.
In addition, response data is unique identifier.
In addition, signal processing module includes at least amplifier and comparator or signal processing module includes at least amplification Device and sample circuit.
Another aspect of the invention provides a kind of signal response system, including above-mentioned signal responding device and read-write dress It sets;Read-write equipment, for sending the carrier signal that frequency is 125KHz, and received encoded signal.
As seen from the above technical solution provided by the invention, through the invention signal response method, device and it is System, the signal that the antenna transmitting-receiving frequency that the resonance frequency that can use small volume is 13.56MHz is 125KHz are set with realizing The demand of standby miniaturization.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is the flow chart of signal response method provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of signal responding device provided in an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of signal response system provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, belongs to protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite Importance or quantity or position.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 shows as the flow chart of signal response method provided in an embodiment of the present invention, and referring to Fig. 1, the present invention is implemented The signal response method that example provides, comprising:
The antenna that S101 is 13.56MHz using resonance frequency receives the carrier signal that frequency is 125KHz.
Wherein, since the antenna volume that the antenna ratio resonance frequency of resonance frequency 13.56MHz is 125K is small, it can be with The antenna that resonance frequency is 13.56MHz is set on small device, to prevent from being not easy to miniaturization since antenna is excessive and setting The antenna that resonance frequency is 13.56MHz is arranged in meter, therefore, the embodiment of the present invention on signal responding device, passes through resonance frequency The transmitting-receiving of signal is carried out for the antenna of 13.56MHz.Certainly, the resonance frequency that the present invention is arranged is that the antenna of 13.56MHz may be used also To normally receive frequency for the carrier signal of 13.56MHz, to realize the double mode of equipment.
It is worth noting that resonance frequency documented by the embodiment of the present invention is that 13.56MHz is not limited to resonance frequency Only 13.56MHz, since the characteristic of antenna is different, resonance frequency is that the antenna of 13.56MHz should be construed broadly, and is referred to humorous Antenna of the vibration frequency near 13.56MHz should belong to the antenna that the resonance frequency of record of the embodiment of the present invention is 13.56MHz, For example, it is 13.56MHz's that the antenna that resonance frequency is 13.56MHz ± 7KHz, which should belong to resonance frequency documented by the present invention, Antenna.Likewise, it is only 125KHz that frequency documented by the embodiment of the present invention, which is not limited to frequency for 125KHz, due to sending The characteristic of the device (such as read-write equipment etc.) of carrier signal is different, and the carrier signal that the frequency sent is 125KHz also should be by It broadly understood, refer to that carrier signal of the frequency near 125KHz should belong to the frequency that the embodiment of the present invention is recorded and be The carrier signal of 125KHz, for example, the antenna that frequency is the carrier signal ± nKHz of 125KHz should belong to recorded in the present invention Frequency be 125KHz carrier signal, wherein n be preset value.
S102 amplifies carrier signal, and carries out analog-to-digital conversion to amplified signal, obtains digital signal.
Wherein, since the frequency for sending the carrier signal that the device of carrier signal is sent is 125KHz, and signal response dress The antenna for using resonance frequency as 13.56MHz is set, signal responding device is received by the antenna that resonance frequency is 13.56MHz The amplitude of carrier signal is smaller, is not enough to be identified by signal responding device, the load that therefore, it is necessary to receive signal responding device Wave signal amplifies, and to amplify the amplitude of carrier signal, signal responding device is allowed to identify the carrier signal.It is specific real In existing, carrier signal amplification can be realized using amplifier and peripheral circuit.
Signal responding device carries out modulus after amplifying carrier signal, to amplified carrier signal (such as sine wave) Conversion sends information to form digital signal (such as square wave) so as to obtain sending the device of carrier signal, which can It also may include being sent to signal responding device to include the information for the preset format that indication signal responding device is responded Data, this in the present invention and is not particularly limited.It can in the specific implementation, carrying out analog-to-digital conversion to amplified carrier signal To realize using comparator and peripheral circuit, it can also realize that this is not provided in the present invention using A/D sample circuit Body limits, as long as the implementation that may be implemented to obtain amplified carrier signal progress analog-to-digital conversion digital signal should all belong to In protection scope of the present invention.
S103 obtains the characteristics of signals of carrier signal according to digital signal, and characteristics of signals includes at least: frequency and phase Position.
Wherein, since the characteristic for sending the device of carrier signal is different, the carrier signal characteristic for causing it to send also not phase Together, therefore, the carrier signal that the device that signal responding device receives that some sends carrier signal is sent, also needs to obtain its transmission Carrier signal characteristics of signals, the characteristics of signals include at least the carrier signal frequency and phase.It responds and fills in signal After setting the characteristics of signals for getting received carrier signal, the dress that the transmission carrier signal of information exchange is carried out with it can be known The characteristic set, and can be sent information to according to the identical characteristic with the device for sending carrier signal and send carrier signal Device, to complete information exchange.For example, the frequency for the carrier signal that the device for sending carrier signal is sent is 125.3KHz, letter After number responding device receives the carrier signal, the frequency for getting the carrier signal is 125.3KHz, is filled so that signal responds Postponing to continue uses frequency to respond for the response signal of 125.3KHz to the device for sending carrier signal.
In the specific implementation, comparator and peripheral circuit can be used when carrying out analog-to-digital conversion to amplified carrier signal When realization, signal responding device can determine the characteristic of carrier signal by the square wave that comparator exports;When to amplified load When wave signal carries out analog-to-digital conversion using the realization of A/D sample circuit, signal responding device can be by sampling obtained sine wave Determine the characteristic of carrier signal.
S104 encodes response data with frequency, obtains encoded signal, and determine exports coding signal according to phase Start-phase be superimposed encoded signal at same phase with carrier signal by antenna exports coding signal.
Wherein, in response to the device for sending carrier signal, signal responding device is needed with frequency identical with carrier signal Rate is encoded, and sends encoded signal with phase identical with carrier signal, to guarantee encoded signal with carrier signal in phase It is superimposed at same-phase, enhances the amplitude of carrier signal, make the device for sending carrier signal is available to arrive, rung to complete signal Answer information transmission of the device to the device for sending carrier signal.Preferably, the phase difference of start-phase and carrier signal is 0, can So that encoded signal is superimposed with what carrier signal was completely coincident at same phase, enhance the amplitude of carrier signal, facilitates hair The device of carrier signal is sent to obtain.
It can be seen that signal response method through the invention, the resonance frequency that can use small volume are The antenna transmitting-receiving frequency of 13.56MHz is the signal of 125KHz, to realize the demand of device miniaturization.
As an optional embodiment of the embodiment of the present invention, response data is unique identifier.At this point, sending carrier wave The device of signal can be used as ID card with read-write equipment, such as card reader, signal responding device to respond card reader.Wherein, Unique identifier can be ID number, such as identification card number etc..
Fig. 2 shows the structural schematic diagrams for signal responding device provided in an embodiment of the present invention, referring to fig. 2, the present invention The signal responding device 20 that embodiment provides, comprising:
Receiving module 201, for be 13.56MHz using resonance frequency antenna receive frequency be 125KHz carrier wave letter Number;
Signal processing module 202 carries out analog-to-digital conversion for amplifying to carrier signal, and to amplified signal, Obtain digital signal;
Characteristics of signals obtains module 203, and for obtaining the characteristics of signals of carrier signal according to digital signal, characteristics of signals is extremely It less include: frequency and phase;
Output module 204 obtains encoded signal, and determine according to phase for encoding response data with frequency The start-phase of exports coding signal makes encoded signal and carrier signal at same phase by antenna exports coding signal Superposition.
Wherein, since the antenna volume that the antenna ratio resonance frequency of resonance frequency 13.56MHz is 125K is small, it can be with The antenna that resonance frequency is 13.56MHz is set on small device, to prevent from being not easy to miniaturization since antenna is excessive and setting The antenna that resonance frequency is 13.56MHz is arranged in meter, therefore, the embodiment of the present invention on signal responding device 20, passes through resonance frequency Rate is that the antenna of 13.56MHz carries out the transmitting-receiving of signal.Certainly, the resonance frequency that the present invention is arranged be 13.56MHz antenna also The carrier signal that frequency is 13.56MHz can be normally received, to realize the double mode of equipment.
It is worth noting that resonance frequency documented by the embodiment of the present invention is that 13.56MHz is not limited to resonance frequency Only 13.56MHz, since the characteristic of antenna is different, resonance frequency is that the antenna of 13.56MHz should be construed broadly, and is referred to humorous Antenna of the vibration frequency near 13.56MHz should belong to the antenna that the resonance frequency of record of the embodiment of the present invention is 13.56MHz, For example, it is 13.56MHz's that the antenna that resonance frequency is 13.56MHz ± 7KHz, which should belong to resonance frequency documented by the present invention, Antenna.Likewise, it is only 125KHz that frequency documented by the embodiment of the present invention, which is not limited to frequency for 125KHz, due to sending The characteristic of the device (such as read-write equipment etc.) of carrier signal is different, and the carrier signal that the frequency sent is 125KHz also should be by It broadly understood, refer to that carrier signal of the frequency near 125KHz should belong to the frequency that the embodiment of the present invention is recorded and be The carrier signal of 125KHz, for example, the antenna that frequency is the carrier signal ± nKHz of 125KHz should belong to recorded in the present invention Frequency be 125KHz carrier signal, wherein n be preset value.
The frequency for the carrier signal that device due to sending carrier signal is sent is 125KHz, and receiving module 201 uses Resonance frequency is the antenna of 13.56MHz, the amplitude of carrier signal received by the antenna that resonance frequency is 13.56MHz compared with It is small, it is not enough to be identified by signal responding device 20, therefore, it is necessary to signal processing modules 202 to receive signal responding device 20 Carrier signal amplify, to amplify the amplitude of carrier signal, signal responding device 20 is allowed to identify the carrier signal. Signal processing module 202 carries out analog-to-digital conversion after amplifying carrier signal, to amplified carrier signal (such as sine wave), To form digital signal (such as square wave), information is sent so as to obtain sending the device of carrier signal, which can wrap The information for including the preset format that indication signal responding device 20 is responded also may include sending to signal responding device 20 Data, this in the present invention and is not particularly limited.
As an optional embodiment of the invention, signal processing module 202 includes at least amplifier and comparator, or Person's signal processing module includes at least amplifier and sample circuit, and the specific implementation form of signal processing module 202 is in this hair Specific restriction is not made in bright, as long as may be implemented to amplify carrier signal, and amplified carrier signal is carried out The implementation that analog-to-digital conversion obtains digital signal is within the scope of protection of the invention.
Since the characteristic for sending the device of carrier signal is different, the carrier signal characteristic for causing it to send is not also identical, because This, signal responding device 20 receives the carrier signal that the device that some sends carrier signal is sent, and also needs to obtain its transmission The characteristics of signals of carrier signal, the characteristics of signals include at least the frequency and phase of the carrier signal.It is obtained in characteristics of signals After module 203 gets the characteristics of signals of received carrier signal, it can know that the transmission carrier wave for carrying out information exchange with it is believed Number device characteristic, and transmission carrier wave can be sent information to according to the identical characteristic of device for sending carrier signal The device of signal, to complete information exchange.For example, the frequency for the carrier signal that the device for sending carrier signal is sent is 125.3KHz, after receiving module 201 receives the carrier signal, by the processing of signal processing module 202, characteristics of signals is obtained Module 203 get the carrier signal frequency be 125.3KHz, used so that signal responding device 20 is subsequent frequency for The response signal of 125.3KHz responds the device for sending carrier signal.
In the specific implementation, comparator and peripheral circuit can be used when carrying out analog-to-digital conversion to amplified carrier signal When realization, characteristics of signals obtains module 203 can determine the characteristic of carrier signal by the square wave that comparator exports;When to amplification When carrier signal afterwards carries out analog-to-digital conversion using the realization of A/D sample circuit, characteristics of signals, which obtains module 203, can pass through sampling Obtained sine wave determines the characteristic of carrier signal.
In response to the device for sending carrier signal, the needs of the output module 204 of signal responding device 20 with carrier wave The identical frequency of signal is encoded, and with phase identical with carrier signal send encoded signal, with guarantee encoded signal with Carrier signal is superimposed at same phase, enhances the amplitude of carrier signal, makes the device for sending carrier signal is available to arrive, from And complete information transmission of the signal responding device 20 to the device for sending carrier signal.Preferably, start-phase and carrier signal Phase difference be 0, encoded signal can be made to be superimposed with what carrier signal was completely coincident at same phase, enhance carrier signal Amplitude, facilitate send carrier signal device obtain.
It can be seen that signal responding device 20 through the invention, the resonance frequency that can use small volume are The antenna transmitting-receiving frequency of 13.56MHz is the signal of 125KHz, to realize the demand of device miniaturization.
As an optional embodiment of the embodiment of the present invention, response data is unique identifier.At this point, sending carrier wave The device of signal can be used as ID card with read-write equipment, such as card reader, signal responding device 20 to respond card reader.Its In, unique identifier can be ID number, such as identification card number etc..
Fig. 3 shows the structural schematic diagram of signal response system provided in an embodiment of the present invention, and referring to Fig. 3, the present invention is real The signal response system of example offer, including read-write equipment 10 and signal responding device 20 are provided;Wherein signal responding device 20 is Above-mentioned signal responding device, details are not described herein, read-write equipment 10, for sending the carrier signal that frequency is 125KHz, and Received encoded signal.
The signal response system provided through the embodiment of the present invention can also be realized while guaranteeing device miniaturization Information exchange.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present invention By appended claims and its equivalent limit.

Claims (9)

1. a kind of signal response method characterized by comprising
The antenna for being 13.56MHz using resonance frequency receives the carrier signal that frequency is 125KHz;
The carrier signal is amplified, and analog-to-digital conversion is carried out to amplified signal, obtains digital signal;
Obtain the characteristics of signals of the carrier signal according to the digital signal, the characteristics of signals includes at least: frequency and Phase;
Response data is encoded with the frequency, obtains encoded signal, and determine according to the phase and export the coding The start-phase of signal exports the encoded signal by the antenna, makes the encoded signal with the carrier signal in phase It is superimposed at same-phase.
2. the method according to claim 1, wherein the phase difference of the start-phase and the carrier signal is 0。
3. method according to claim 1 or 2, which is characterized in that the response data is unique identifier.
4. a kind of signal responding device characterized by comprising
Receiving module, for be 13.56MHz using resonance frequency antenna receive frequency be 125KHz carrier signal;
Signal processing module carries out analog-to-digital conversion for amplifying to the carrier signal, and to amplified signal, obtains Digital signal;
Characteristics of signals obtains module, for obtaining the characteristics of signals of the carrier signal, the signal according to the digital signal Characteristic includes at least: frequency and phase;
Output module obtains encoded signal, and determine according to the phase for encoding response data with the frequency The start-phase for exporting the encoded signal exports the encoded signal by the antenna, make the encoded signal with it is described Carrier signal is superimposed at same phase.
5. device according to claim 4, which is characterized in that the phase difference of the start-phase and the carrier signal is 0。
6. device according to claim 4 or 5, which is characterized in that the response data is unique identifier.
7. according to the described in any item devices of claim 4 to 5, which is characterized in that the signal processing module is included at least and put Big device and comparator or the signal processing module include at least amplifier and sample circuit.
8. device according to claim 6, which is characterized in that the signal processing module includes at least amplifier and compares Device or the signal processing module include at least amplifier and sample circuit.
9. a kind of signal response system, which is characterized in that including the described in any item signal responding devices of such as claim 4 to 8 And read-write equipment;
The read-write equipment is the carrier signal of 125KHz for sending frequency, and receives the encoded signal.
CN201710058100.3A 2017-01-23 2017-01-23 Card reading response method, apparatus and system Active CN106941363B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201710058100.3A CN106941363B (en) 2017-01-23 2017-01-23 Card reading response method, apparatus and system
EP18741739.9A EP3573247B1 (en) 2017-01-23 2018-01-04 Card read response method, apparatus, and system, and signal transceiving device
US16/479,600 US10873358B1 (en) 2017-01-23 2018-01-04 Card read response method, apparatus, and system, and signal transceiving device
PCT/CN2018/071398 WO2018133676A1 (en) 2017-01-23 2018-01-04 Card read response method, apparatus, and system, and signal transceiving device
SG11201906743XA SG11201906743XA (en) 2017-01-23 2018-01-04 Card read response method, apparatus, and system, and signal transceiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710058100.3A CN106941363B (en) 2017-01-23 2017-01-23 Card reading response method, apparatus and system

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CN106941363B true CN106941363B (en) 2019-09-10

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Publication number Priority date Publication date Assignee Title
WO2018133676A1 (en) * 2017-01-23 2018-07-26 天地融科技股份有限公司 Card read response method, apparatus, and system, and signal transceiving device

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CN102682250A (en) * 2011-03-11 2012-09-19 敖海 Battery auxiliary radio frequency identification device (RFID) label chip signal reflecting method

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US7248165B2 (en) * 2003-09-09 2007-07-24 Motorola, Inc. Method and apparatus for multiple frequency RFID tag architecture

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Publication number Priority date Publication date Assignee Title
CN101344933A (en) * 2008-09-04 2009-01-14 复旦大学 An active radio frequency identification tag
CN101656352A (en) * 2009-09-25 2010-02-24 厦门大学 Double-frequency imaging fractal dipole antenna
CN102682250A (en) * 2011-03-11 2012-09-19 敖海 Battery auxiliary radio frequency identification device (RFID) label chip signal reflecting method

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