CN107911147A - A kind of control circuit and smart card for NFC near-field communications - Google Patents
A kind of control circuit and smart card for NFC near-field communications Download PDFInfo
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- CN107911147A CN107911147A CN201711106753.0A CN201711106753A CN107911147A CN 107911147 A CN107911147 A CN 107911147A CN 201711106753 A CN201711106753 A CN 201711106753A CN 107911147 A CN107911147 A CN 107911147A
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- 238000004891 communication Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000033228 biological regulation Effects 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 230000005674 electromagnetic induction Effects 0.000 claims description 8
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- H04B5/70—
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H04B5/26—
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- H04B5/77—
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- H04B5/79—
Abstract
The invention discloses a kind of control circuit and smart card for NFC near-field communications, control circuit includes the radio-frequency communication module of at least one antenna, voltage processing module, control module, gating switch module and default quantity, antenna obtains radio energy from exterior NFC device and exports alternating current to voltage processing module, voltage processing module and AC process is powered for the control module that supplies voltage to of direct current；Control module output switch control signal to gating switch module, gating switch module is switched on or off connection of the corresponding radio-frequency communication module with corresponding antenna according to switch controlling signal；When radio-frequency communication module is turned on antenna, radio-frequency communication module carries out radio communication by antenna and NFC device.It is electric that the present invention solves the problems, such as that the inside of smart card takes, and without extra configuration battery, simplifies hardware circuit, smart card also has the function of a variety of radio communications, can switch between a variety of radio communication modes, can be applied to a variety of occasions.
Description
Technical field
The present invention relates to NFC communication technical field, more particularly to a kind of control circuit and intelligence for NFC near-field communications
Card.
Background technology
Near-field communication (Near Field Communication, NFC) is a kind of radiotechnics of short distance high frequency, NFC
Near-field communication technology is by non-contact radio-frequency to identify (RFID) and Technology Integration differentiation of interconnecting, on one chip
Combining induction card reader, icah wavw and point-to-point function, can be identified sum number in short distance with compatible equipment
According to exchange.NFC technology is usually applied in smart card.
Generally solve the problems, such as to take electricity by battery powered in existing NFC communication product, cause battery capacity
Loss and waste, shorten service life of the products.
The content of the invention
An embodiment of the present invention provides a kind of control circuit and smart card for NFC near-field communications, it is intended to solves existing
Solve the problems, such as to take electricity by battery powered in technology, cause the loss and waste of battery capacity, service life of the products is contracted
The problem of short.
The first aspect of the embodiment of the present invention provides a kind of control circuit for NFC near-field communications, including at least one
A antenna, voltage processing module, control module, the radio-frequency communication module of gating switch module and default quantity.
Antenna is connected with voltage processing module and gating switch module respectively, control module respectively with voltage processing module and
Gating switch module connects, and gating switch module is connected with radio-frequency communication module.
Antenna obtains radio energy from exterior NFC device by electromagnetic induction coupled modes and exports alternating current to voltage
Processing module, voltage processing module for the supply voltage of direct current and export AC process to control module with to control module
Power supply；Control module output switch control signal to gating switch module, gating switch module is turned on according to switch controlling signal
Or disconnect connection of the corresponding radio-frequency communication module with corresponding antenna；When radio-frequency communication module is turned on antenna, radio frequency
Communication module carries out radio communication by antenna and NFC device.
In one embodiment, the control circuit for NFC near-field communications includes an antenna, and antenna receives NFC device
Radiofrequency signal is simultaneously forwarded to corresponding radio-frequency communication module by the radiofrequency signal of transmission by gating switch module.
In one embodiment, the control circuit for NFC near-field communications includes identical with radio-frequency communication module quantity
Antenna, all antennas are connected with gating switch module, and gating switch module is switched on or off according to switch controlling signal
The connection of a corresponding radio-frequency communication module and a corresponding antenna.
In one embodiment, the control circuit for NFC near-field communications includes identical with radio-frequency communication module quantity
Antenna, gating switch module include the switch element identical with radio-frequency communication module quantity, and an antenna corresponds to connection one and opens
Close unit and a switch element corresponds to one radio-frequency communication module of connection.
In one embodiment, voltage processing module includes sequentially connected rectification unit, voltage regulation unit and voltage conversion
Unit.
Rectification unit receives after alternating current carries out rectification processing and exports direct current, and voltage regulation unit carries out voltage stabilizing to direct current,
Direct current after voltage stabilizing is converted to the supply voltage needed for control module by voltage conversion unit.
In one embodiment, rectification unit includes the first diode, the second diode, the 3rd diode and the four or two pole
Pipe.
The cathode of the anode of first diode and the second diode connects the first input end to form rectification unit altogether, and the three or two
The cathode of the anode of pole pipe and the 4th diode connects the second input terminal to form rectification unit, the cathode of the first diode and altogether
The cathode of three diodes connects the anode of the first output terminal to form rectification unit, the anode of the second diode and the 4th diode altogether
Ground is connected to altogether and forms the second output terminal of rectification unit.
In one embodiment, voltage regulation unit includes Zener diode and filter capacitor.
The cathode of Zener diode and the first end of filter capacitor connect the first end to form voltage regulation unit, Zener diode altogether
Anode and the second end of filter capacitor connect the second end to form voltage regulation unit altogether.
In one embodiment, filter module is further included, filter module is connected between antenna and gating switch module, filter
Ripple module is used to filter out the interference signal in radio communication.
In one embodiment, man-machine interactively module is further included, man-machine interactively module is connected with control module, man-machine interactively
Module receives user instructions and is forwarded to control module, so that control module exports corresponding switch controlling signal；Man-machine interactively
Module also receives the switch state signal of control module feedback and is exported.
The second aspect of the embodiment of the present invention provides a kind of smart card, including is used for NFC near-field communications as described above
Control circuit.
Existing beneficial effect is the embodiment of the present invention compared with prior art：Antenna by electromagnetic induction coupled modes from
Exterior NFC device obtains radio energy and exports alternating current to voltage processing module, and voltage processing module is by AC process
For direct current supply voltage and export to control module to power to control module；Control module output switch control signal extremely selects
Logical switch module, gating switch module according to switch controlling signal be switched on or off corresponding radio-frequency communication module with it is corresponding
The connection of antenna；When radio-frequency communication module is turned on antenna, radio-frequency communication module carries out radio frequency with NFC device by antenna and leads to
Letter.Smart card using NFC device Card Reader when, can realize charging, solve the problems, such as smart card inside take it is electric, without volume
Outer configuration battery, reduces the device in product, simplifies hardware circuit, reduces the cost of product.Also achieve an intelligence
Can block has the function of a variety of radio communications, can switch between a variety of radio communication modes, can be applied to a variety of occasions.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without having to pay creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the modular structure signal for the control circuit for NFC near-field communications that one embodiment of the present of invention provides
Figure；
Fig. 2 is the modular structure signal for the control circuit for NFC near-field communications that one embodiment of the present of invention provides
Figure；
Fig. 3 is the circuit structure signal for the control circuit for NFC near-field communications that one embodiment of the present of invention provides
Figure.
Embodiment
In order to make those skilled in the art more fully understand this programme, below in conjunction with attached in this programme embodiment
Figure, is explicitly described the technical solution in this programme embodiment, it is clear that described embodiment is this programme part
Embodiment, instead of all the embodiments.Based on the embodiment in this programme, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, should all belong to the scope of this programme protection.
Term " comprising " and other any deformations in the specification and claims of this programme and above-mentioned attached drawing, are
Refer to " including but not limited to ", it is intended that cover non-exclusive include.In addition, term " first " and " second " etc. are to be used to distinguish
Different objects, not for description particular order.
It is described in detail below in conjunction with realization of the specific attached drawing to the present invention：
A kind of figures 1 and 2 show that control circuit 100 for NFC near-field communications that one embodiment of the invention is provided
Structure, for convenience of description, illustrate only with the relevant part of the embodiment of the present invention, details are as follows：
As depicted in figs. 1 and 2, a kind of control circuit 100 for NFC near-field communications that the embodiment of the present invention is provided,
Including penetrating at least one antenna 110, voltage processing module 120, control module 130, gating switch module 140 and default quantity
Frequency communication module 150.
Antenna 110 is connected with voltage processing module 120 and gating switch module 140 respectively, control module 130 respectively with electricity
Pressure processing module 120 and gating switch module 140 connect, and gating switch module 140 is connected with radio-frequency communication module 150.
Antenna 110 obtains radio energy from exterior NFC device 200 by electromagnetic induction coupled modes and exports alternating current
To voltage processing module 120, voltage processing module 120 for the supply voltage of direct current and exports AC process to control module
130 to control module 130 to power；130 output switch control signal of control module is to gating switch module 140, gating switch
Module 140 is switched on or off company of the corresponding radio-frequency communication module 150 with corresponding antenna 110 according to switch controlling signal
Connect；When radio-frequency communication module 150 and antenna 110 turn on, radio-frequency communication module 150 by antenna 110 and NFC device 200 into
Row radio communication.
In one embodiment, antenna 110 is planar coil antenna.
In embodiments of the present invention, the control circuit 100 for NFC near-field communications can be applied in smart card product.
The present embodiment at NFC device 200 wirelessly takes electricity antenna 110 in a manner of electromagnetic induction, so as to control
Module 130 is powered, for example, smart card can realize charging, solve smart card product when using 200 Card Reader of NFC device
Inside take electric problem, without extra configuration battery, reduce the device in product, simplify hardware circuit, reduce product
Cost.
In one embodiment, gating switch module 140 turns on a radio-frequency communication module 150 according to switch controlling signal
With the connection of an antenna 110, remaining radio-frequency communication module 150 is in being connected off-state with antenna 110.
The present embodiment controls gating switch module 140 to switch by control module 130, so that antenna 110 can be connected
Different radio-frequency communication modules 150, and can only be connect in synchronization, an antenna 110 with a radio-frequency communication module 150
Logical, other radio-frequency communication modules 150 do not work.Not only realizing a sheet smart card has the function of that a variety of radio communications (and can
Switch between a variety of radio communication modes), but cause a smart card on multiple radio-frequency communication modules 150 between will not phase
Mutually interference, can be applied to a variety of occasions, for example, smart card has the function of mass transit card and bank card functionality etc. at the same time.
In embodiments of the present invention, 130 output switch control signal of control module to gating switch module 140, open by gating
Close module 140 and company of the corresponding radio-frequency communication module 150 with corresponding antenna 110 is switched on or off according to switch controlling signal
Connect, so as to fulfill different radio communication functions.Gating switch module 140 can include single pole multiple throw, except required
Beyond radio-frequency communication module 150 is connected with corresponding antenna 110, other radio-frequency communication modules 150 are in hanging state,
So as to radio communication and wirelessly electricity be taken to have any impact.
In a particular application, control module 130 controls the process of the action of gating switch module 140 to specifically include：
1) when powering on, control module 130 enters working status, and all radio-frequency communication modules 150 are in antenna 110
Connect the state disconnected.
2) when control module 130 receives user instruction, control module 130 exports corresponding switch according to user instruction
Control signal is to gating switch module 140, so that an antenna 110 is connected with the radio-frequency communication module 150 specified.
As shown in Figure 1, in one embodiment of the invention, the control circuit 100 for NFC near-field communications includes one
Antenna 110, antenna 110 receive the radiofrequency signal that NFC device is sent and are forwarded to radiofrequency signal by gating switch module 140
Corresponding radio-frequency communication module 150.
In one embodiment of the invention, gating switch module 140 includes multidiameter option switch.
The present embodiment is suitable under the application scenarios of only one antenna 110, controls gating to open by control module 130
The mode that module 140 switches is closed, respective communication function is realized by a variety of communication modules, can appoint between multichannel communication multiple telecommunication mode
Meaning switching, also solves and can be avoided the occurrence of there are the mutual absorbed problem of Communication Jamming and energy between mutiple antennas 110
The situation of communication contention aware.
In one embodiment, the control circuit 100 for NFC near-field communications includes and 150 quantity of radio-frequency communication module
Identical antenna 110, all antennas 110 are connected with gating switch module 140, and gating switch module 140 is opened according to described
Close control signal and be switched on or off connection of the corresponding radio-frequency communication module 150 with a corresponding antenna 110.
As shown in Fig. 2, in one embodiment of the invention, the control circuit 100 for NFC near-field communications is included with penetrating
The identical antenna 110 of 150 quantity of frequency communication module, gating switch module 140 include identical with 150 quantity of radio-frequency communication module
Switch element 141, an antenna 110 corresponds to one switch element 141 of connection and a switch element 141 corresponds to connection one and penetrates
Frequency communication module 150.
In the present embodiment, wherein any one antenna 110 is connected with voltage processing module 120, and passes through electromagnetic induction
Coupled modes obtain radio energy from exterior NFC device 200 and export alternating current to voltage processing module 120, so that voltage
Processing module 120 is powered to control module 130.
In one embodiment, switch element 141 can be electronic switching tube, for example, triode, metal-oxide-semiconductor etc..
The present embodiment is suitable for the application scenarios with mutiple antennas 110, is led to by gating switch module 140 in different
Switch between letter module, control process is simple, easily realizes.
Fig. 3 shows the circuit knot for the control circuit 100 for NFC near-field communications that one embodiment of the invention is provided
Structure, for convenience of description, illustrate only with the relevant part of the embodiment of the present invention, details are as follows：
As shown in figure 3, in one embodiment of the invention, antenna 110 is planar coil antenna T1.
Planar coil antenna T1 obtains AC energy from NFC device 200 (such as card reader) by electromagnetic induction.
As shown in figure 3, in one embodiment of the invention, voltage processing module 120 includes sequentially connected rectification list
Member 121, voltage regulation unit 122 and voltage conversion unit 123.
Rectification unit 121 receives after alternating current carries out rectification processing and exports direct current, and voltage regulation unit 122 carries out direct current
Direct current after voltage stabilizing is converted to the supply voltage needed for control module 130 by voltage stabilizing, voltage conversion unit 123.
In the present embodiment, the first end and second end of planar coil antenna T1 respectively with rectification unit 121 first
Input terminal and the second input terminal connect one to one, the first output terminal and the second output terminal of rectification unit 121 respectively with voltage stabilizing
The first end and second end of unit 122 connects one to one, the first end and second end of voltage regulation unit 122 also with voltage conversion list
Member 123 connects.
In the present embodiment, antenna 110 obtains radio by electromagnetic induction coupled modes from exterior NFC device 200
What can be exported afterwards is alternating current, since alternating current cannot be directly applied in the internal module of smart card, it is therefore desirable to exchange
Electricity is handled.Alternating current is carried out rectification processing by alternating current transmission to rectification unit 121, rectification unit 121 in the present embodiment
After export direct current, direct current again by the voltage stabilizing processing of voltage regulation unit 122 and the voltage conversion of voltage conversion unit 123 at
Switch to stablize after reason and sizeable supply voltage, the supply voltage are used to power to control module 130.
As shown in figure 3, in one embodiment of the invention, rectification unit 121 includes the first diode D1, the two or two pole
Pipe D2, the 3rd diode D3 and the 4th diode D4.
The cathode of the anode of first diode D1 and the second diode D2 connect the first input to form rectification unit 121 altogether
End, the anode of the 3rd diode D3 and the cathode of the 4th diode D4 connect the second input terminal to form rectification unit 121 altogether, and first
The cathode of the cathode of diode D1 and the 3rd diode D3 connect the first output terminal to form rectification unit 121, the second diode altogether
The anode of the anode of D2 and the 4th diode D4 are connected to ground and form the second output terminal of rectification unit 121 altogether.
In the present embodiment, the alternating current that antenna 110 exports is by the first diode D1, the second diode D2, the three or two pole
The rectifier circuit of pipe D3 and the 4th diode D4 compositions, direct current is converted to by alternating current.
As shown in figure 3, in one embodiment of the invention, voltage regulation unit 122 includes Zener diode D5 and filtered electrical
Hold C1.
The cathode of Zener diode D5 connects the first end to form voltage regulation unit 122 altogether with the first end of filter capacitor C1, together
The anode of diode D5 of receiving connects the second end to form voltage regulation unit 122 altogether with the second end of filter capacitor C1.
In the present embodiment, rectification unit 121 exports direct current to voltage regulation unit 122, to prevent the overtension of direct current
Device in late-class circuit is caused to damage, sets Zener diode D5 to carry out the voltage of direct current in voltage regulation unit 122
Limitation, to protect the device in late-class circuit.Voltage regulation unit 122 is again by the DC power transmission after voltage stabilizing to voltage conversion unit
123 obtain required magnitude of voltage output.
In one embodiment, voltage regulation unit 122 includes linear voltage regulator.
In a particular application, linear voltage regulator is LDO (Low Dropout Regulator) low pressure difference linear voltage regulator.
As shown in figure 3, in one embodiment of the invention, the control circuit 100 for NFC near-field communications further includes filter
Ripple module 160, filter module 160 are connected between antenna 110 and gating switch module 140, and filter module 160 is used to filter out to penetrate
Interference signal in frequency communication.
As shown in figure 3, filter module 160 includes the second filter capacitor C2.
As shown in figure 3, in one embodiment of the invention, the control circuit 100 for NFC near-field communications further includes people
Work interactive module 170, man-machine interactively module 170 are connected with control module 130, and man-machine interactively module 170 receives user instructions simultaneously
Control module 130 is forwarded to, so that control module 130 exports corresponding switch controlling signal；Man-machine interactively module 170 also receives
The switch state signal of the feedback of control module 130 is simultaneously exported.
In one embodiment, man-machine interactively module 170 includes touch display screen.
In one embodiment, man-machine interactively module 170 includes input unit and output display unit.
In a particular application, the input unit input equipment such as including button, output display unit show including display etc.
Equipment.
The embodiment of the present invention additionally provides a kind of smart card, including the control electricity as described above for NFC near-field communications
Road 100.
In conclusion the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
State the technical solution described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical solution.
Claims (10)
- A kind of 1. control circuit for NFC near-field communications, it is characterised in that including at least one antenna, voltage processing module, The radio-frequency communication module of control module, gating switch module and default quantity；The antenna is connected with the voltage processing module and the gating switch module respectively, the control module respectively with institute State voltage processing module to connect with the gating switch module, the gating switch module is connected with the radio-frequency communication module；The antenna obtains radio energy from exterior NFC device by electromagnetic induction coupled modes and exports alternating current to described Voltage processing module, the voltage processing module for the supply voltage of direct current and export the AC process to the control Module with give the control module power；The control module output switch control signal is described to the gating switch module Gating switch module is switched on or off the corresponding radio-frequency communication module and corresponding institute according to the switch controlling signal State the connection of antenna；When the radio-frequency communication module is turned on the antenna, the radio-frequency communication module passes through the antenna Radio communication is carried out with the NFC device.
- 2. it is used for the control circuit of NFC near-field communications as claimed in claim 1, it is characterised in that the control circuit includes One antenna, the antenna receive the radiofrequency signal that the NFC device is sent and are penetrated by the gating switch module by described Frequency signal is forwarded to the corresponding radio-frequency communication module.
- 3. it is used for the control circuit of NFC near-field communications as claimed in claim 1, it is characterised in that the control circuit includes The antenna identical with the radio-frequency communication module quantity, all antennas are connected with the gating switch module, described Gating switch module according to the switch controlling signal be switched on or off a corresponding radio-frequency communication module with it is corresponding An antenna connection.
- 4. it is used for the control circuit of NFC near-field communications as claimed in claim 1, it is characterised in that the control circuit includes The antenna identical with the radio-frequency communication module quantity, the gating switch module include and the radio-frequency communication module quantity phase Same switch element, an antenna corresponds to one switch element of connection and a switch element corresponds to connection one A radio-frequency communication module.
- 5. it is used for the control circuit of NFC near-field communications as claimed in claim 1, it is characterised in that the voltage processing module Including sequentially connected rectification unit, voltage regulation unit and voltage conversion unit；The rectification unit receives after the alternating current carries out rectification processing and exports direct current, and the voltage regulation unit is to the direct current Electricity carries out voltage stabilizing, and the direct current after voltage stabilizing is converted to the power supply electricity needed for the control module by the voltage conversion unit Pressure.
- 6. it is used for the control circuit of NFC near-field communications as claimed in claim 5, it is characterised in that the rectification unit includes First diode, the second diode, the 3rd diode and the 4th diode；The cathode of the anode of first diode and second diode connects the first input to form the rectification unit altogether End, the anode of the 3rd diode connect the second input to form the rectification unit with the cathode of the 4th diode altogether The cathode of end, the cathode of first diode and the 3rd diode connects the first output to form the rectification unit altogether The anode of end, the anode of second diode and the 4th diode is connected to ground and forms the second of the rectification unit altogether Output terminal.
- 7. it is used for the control circuit of NFC near-field communications as claimed in claim 5, it is characterised in that the voltage regulation unit includes Zener diode and filter capacitor；The cathode of the Zener diode and the first end of the filter capacitor meet the first end to form the voltage regulation unit, institute altogether The second end of the anode and the filter capacitor of stating Zener diode connects the second end to form the voltage regulation unit altogether.
- 8. as claim 1 to 7 any one of them is used for the control circuit of NFC near-field communications, it is characterised in that further include filter Ripple module, the filter module are connected between the antenna and the gating switch module, and the filter module is used to filter out Interference signal in the radio communication.
- 9. as claim 1 to 7 any one of them is used for the control circuit of NFC near-field communications, it is characterised in that further include people Work interactive module, the man-machine interactively module are connected with the control module, and the man-machine interactively module receives user instructions simultaneously The control module is forwarded to, so that the corresponding switch controlling signal of control module output；The man-machine interactively mould Block also receives the switch state signal of the control module feedback and is exported.
- 10. a kind of smart card, it is characterised in that including being used for NFC near-field communications such as claim 1 to 9 any one of them Control circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106753.0A CN107911147B (en) | 2017-11-10 | 2017-11-10 | Control circuit for NFC near field communication and smart card |
| PCT/CN2018/098333 WO2019091154A1 (en) | 2017-11-10 | 2018-08-02 | Control circuit for near field communication (nfc) and smart card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106753.0A CN107911147B (en) | 2017-11-10 | 2017-11-10 | Control circuit for NFC near field communication and smart card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107911147A true CN107911147A (en) | 2018-04-13 |
| CN107911147B CN107911147B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711106753.0A Active CN107911147B (en) | 2017-11-10 | 2017-11-10 | Control circuit for NFC near field communication and smart card |
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| Country | Link |
|---|---|
| CN (1) | CN107911147B (en) |
| WO (1) | WO2019091154A1 (en) |
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| CN108649814A (en) * | 2018-06-13 | 2018-10-12 | 深圳市文鼎创数据科技有限公司 | Smart card, intelligent card control method, device and equipment |
| CN108901061A (en) * | 2018-05-31 | 2018-11-27 | 深圳市文鼎创数据科技有限公司 | A kind of NFC device |
| CN109510324A (en) * | 2018-12-19 | 2019-03-22 | 上海科世达-华阳汽车电器有限公司 | A kind of automobile and its human-computer interaction device |
| WO2019091154A1 (en) * | 2017-11-10 | 2019-05-16 | 深圳市文鼎创数据科技有限公司 | Control circuit for near field communication (nfc) and smart card |
| CN111641437A (en) * | 2020-05-28 | 2020-09-08 | Oppo（重庆）智能科技有限公司 | Near field communication and wireless charging antenna module and electronic device |
| CN112740231A (en) * | 2018-07-20 | 2021-04-30 | 德雷森技术(欧洲)有限公司 | Circuit for smart cards and other applications |
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| CN113067604A (en) * | 2020-01-02 | 2021-07-02 | 深圳市文鼎创数据科技有限公司 | NFC access control circuit and NFC device |
| CN115085770A (en) * | 2021-03-15 | 2022-09-20 | 上海复旦微电子集团股份有限公司 | Passive NFC interface and device |
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| FR3098908A1 (en) * | 2019-07-19 | 2021-01-22 | Continental Automotive Gmbh | Non-contact sensor for motor vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177228A (en) * | 2011-12-26 | 2013-06-26 | 国民技术股份有限公司 | Intelligent card and working method thereof |
| US20150244427A1 (en) * | 2011-05-17 | 2015-08-27 | Samsung Electronics Co., Ltd. | Apparatus and method for using near field communication and wireless power transmission |
| CN104932676A (en) * | 2014-03-17 | 2015-09-23 | 黄议德 | Device and method for controlling actions of electronic device in no battery mode, and use thereof |
| CN106855955A (en) * | 2015-12-09 | 2017-06-16 | 北京握奇智能科技有限公司 | A kind of New Type IC Card of shared NFC antenna |
| CN207638657U (en) * | 2017-11-10 | 2018-07-20 | 深圳市文鼎创数据科技有限公司 | A kind of control circuit and smart card for NFC near-field communications |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911147B (en) * | 2017-11-10 | 2020-05-19 | 深圳市文鼎创数据科技有限公司 | Control circuit for NFC near field communication and smart card |
-
2017
- 2017-11-10 CN CN201711106753.0A patent/CN107911147B/en active Active
-
2018
- 2018-08-02 WO PCT/CN2018/098333 patent/WO2019091154A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150244427A1 (en) * | 2011-05-17 | 2015-08-27 | Samsung Electronics Co., Ltd. | Apparatus and method for using near field communication and wireless power transmission |
| CN103177228A (en) * | 2011-12-26 | 2013-06-26 | 国民技术股份有限公司 | Intelligent card and working method thereof |
| CN104932676A (en) * | 2014-03-17 | 2015-09-23 | 黄议德 | Device and method for controlling actions of electronic device in no battery mode, and use thereof |
| CN106855955A (en) * | 2015-12-09 | 2017-06-16 | 北京握奇智能科技有限公司 | A kind of New Type IC Card of shared NFC antenna |
| CN207638657U (en) * | 2017-11-10 | 2018-07-20 | 深圳市文鼎创数据科技有限公司 | A kind of control circuit and smart card for NFC near-field communications |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019091154A1 (en) * | 2017-11-10 | 2019-05-16 | 深圳市文鼎创数据科技有限公司 | Control circuit for near field communication (nfc) and smart card |
| CN108901061A (en) * | 2018-05-31 | 2018-11-27 | 深圳市文鼎创数据科技有限公司 | A kind of NFC device |
| CN108649814A (en) * | 2018-06-13 | 2018-10-12 | 深圳市文鼎创数据科技有限公司 | Smart card, intelligent card control method, device and equipment |
| CN112740231A (en) * | 2018-07-20 | 2021-04-30 | 德雷森技术(欧洲)有限公司 | Circuit for smart cards and other applications |
| CN109510324A (en) * | 2018-12-19 | 2019-03-22 | 上海科世达-华阳汽车电器有限公司 | A kind of automobile and its human-computer interaction device |
| WO2021092891A1 (en) * | 2019-11-15 | 2021-05-20 | 深圳市汇顶科技股份有限公司 | Power supply system, power receiving system, main body of electronic cigarette, and cigarette cartridge |
| CN113067604A (en) * | 2020-01-02 | 2021-07-02 | 深圳市文鼎创数据科技有限公司 | NFC access control circuit and NFC device |
| CN113067604B (en) * | 2020-01-02 | 2022-08-30 | 深圳市文鼎创数据科技有限公司 | NFC access control circuit and NFC device |
| CN111641437A (en) * | 2020-05-28 | 2020-09-08 | Oppo（重庆）智能科技有限公司 | Near field communication and wireless charging antenna module and electronic device |
| CN115085770A (en) * | 2021-03-15 | 2022-09-20 | 上海复旦微电子集团股份有限公司 | Passive NFC interface and device |
| CN115085770B (en) * | 2021-03-15 | 2023-07-28 | 上海复旦微电子集团股份有限公司 | Passive NFC interface and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019091154A1 (en) | 2019-05-16 |
| CN107911147B (en) | 2020-05-19 |
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