CN103310264A - Radio frequency IC card and communication device - Google Patents
Radio frequency IC card and communication device Download PDFInfo
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- CN103310264A CN103310264A CN201210059748XA CN201210059748A CN103310264A CN 103310264 A CN103310264 A CN 103310264A CN 201210059748X A CN201210059748X A CN 201210059748XA CN 201210059748 A CN201210059748 A CN 201210059748A CN 103310264 A CN103310264 A CN 103310264A
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Abstract
The invention relates to a radio frequency IC card and a communication device. The radio frequency IC card comprises a main controller, a radio frequency data receiving and sending module, a magnetic signal sending module and a magnetic signal receiving module. The main controller is used for controlling the magnetic signal sending module and the magnetic signal receiving module to start to work in a time-sharing way. When the magnetic signal receiving module starts to work, the magnetic signal receiving module receives a magnetic signal sent by an external terminal and transfers the external magnetic signal into an electrical signal and outputs the electrical signal to the main controller. When the magnetic signal sending module starts to work, the magnetic signal sending module generates and sends the magnetic signal to the external terminal. The radio frequency data receiving and sending module receives a confirm signal sent by the external terminal and transfers the confirm signal into the electrical signal and outputs the electrical signal to the main controller. The main controller controls the radio frequency data receiving and sending module to conduct a radio frequency data exchange with the external terminal. The radio frequency IC card provided by the invention can be used both as a passive "radio frequency IC card" and as a positive "radio frequency card reader", and thus has dual functions.
Description
Technical field
The present invention relates to field of wireless communications, particularly radio-frequency (RF) IC card and communicator.
Background technology
Along with development of wireless communication devices, mobile communication terminal is commonly used as the indispensable daily communication exchange instrument of people.Be used for to realize the user identification module (Subscriber Identity Module) of identity identification function simultaneously, be called for short SIM card, also be widely used in moving communicating field as the important component part of mobile communication terminal.Under the continuous progressive expulsive force of smart card techniques, in order to satisfy ever-increasing mobile phone users demand for experience, by increasing various intelligent use functional modules in common SIM card inside, make SIM card not only have basic telecommunications functions, can also possess multiple novel capabilities of serving popular daily life, can satisfy the market demand that constantly changes well, be exactly one of them based on low frequency apart from the radio-frequency (RF) IC card of controlling function.
Above-mentioned is a kind of special SIM card with low frequency magnetic field communication and the combination of RF data communications function based on low frequency apart from the radio-frequency (RF) IC card of controlling function, and low channel and radio-frequency channel are bound.In some certain applications of described radio-frequency (RF) IC card, closely payment class as the public transit system electronic bill is used, mispronounce card and misread card operation and cause unnecessary economic loss for preventing, this radio-frequency (RF) IC card and corresponding radio-frequency card reader device must be limited in the effective and controlled communication distance scope, with the safety that guarantees read-write both sides transaction and reliable.
Therefore, wireless communication distance control just becomes the above-mentioned technological difficulties that need key breakthrough based on low frequency apart from the radio-frequency (RF) IC card of control function.Those skilled in the art have invented a kind of mode that detects the low frequency magnetic field signal intensity of utilizing and have realized the effectively radio-frequency (RF) IC card of control of communication distance, and this technology is in the inner integrated low frequency magnetic induction module of radio-frequency (RF) IC card and default corresponding threshold level.When entering the magnetic field that radio-frequency card reader produces, the intensity that this radio-frequency (RF) IC card detects the low frequency magnetic field signal that receives more than or equal to predetermined threshold value after, this radio-frequency (RF) IC card is activated, show that it enters the safe transaction zone of swiping the card, this radio-frequency (RF) IC card starts the radio-frequency channel immediately, and responds the relevant verify data of radio-frequency card reader by the radio-frequency channel.
In the above-mentioned technology, this radio-frequency (RF) IC card has unidirectional low frequency receiving cable, utilize low frequency signal that the good penetration of shelter and magnetic field intensity are the rule of monotonic decay with distance, can reduce the otherness that various portable terminals bring owing to structure is different with material effectively influences.This radio-frequency (RF) IC card can all portable terminals the low frequency magnetic field threshold value be set to identical, whether meet the requirements to judge by detecting its low frequency magnetic field intensity that receives whether insert distance meets the demands, whether should start conclude the business a series of subsequent operations such as affirmation of entity of radio-frequency channel, thereby realize not have the transaction of calibration apart from control, the legitimate correspondence that makes different mobile terminal and radio-frequency card reader apart from unification, be stabilized in the limited and controlled interval range.
But also there is certain shortcoming in above-mentioned radio-frequency (RF) IC card.In the above-mentioned technical scheme of mentioning, this radio-frequency (RF) IC card inside only is integrated with low frequency magnetic induction receiver module, described radio-frequency (RF) IC card can only be unidirectional reception and the low frequency alternating magnetic field signal that is provided by radio-frequency card reader is provided, namely can only be in passive receiving mode, and can't realize initiatively initiating communication request, that is can't realize in an effective and controlled communication distance scope, communicating between two portable terminals, to guarantee reading and writing the safety of both sides' transaction with reliable.
Summary of the invention
The invention provides a kind of radio-frequency (RF) IC card and communicator with dual-use function, the low frequency alternating magnetic field signal that makes this radio-frequency (RF) IC card not only have to receive and detect by radio-frequency card reader or portable terminal emission carries out distance control as the function of Passive Mode " card "; Simultaneously, also have and initiatively launch the low frequency alternating magnetic field signal as the radio-frequency card reader function, realize in an effective and controlled communication distance scope, communicating between the portable terminal, to guarantee reading and writing the safety of both sides' transaction with reliable.
The invention provides a kind of radio-frequency (RF) IC card, this radio-frequency (RF) IC card comprises master controller, rf data transceiver module, magnetic signal transmitter module and magnetic signal receiver module, and described master controller is used for timesharing and controls described magnetic signal transmitter module and described magnetic signal receiver module unlatching work; When described magnetic signal receiver module unlatching work, described magnetic signal receiver module receives the magnetic signal of exterior terminal emission, and the external magnetic signal is converted to electric signal outputs to described master controller, the described rf data transceiver module of described main controller controls and exterior terminal carry out the rf data exchange; When described magnetic signal transmitter module unlatching work, described magnetic signal transmitter module produces and launches magnetic signal to exterior terminal, described rf data transceiver module receives the affirmation signal of exterior terminal emission and is converted to electric signal and outputs to described master controller, and the rf data exchange is carried out in the described rf data transceiver module of described main controller controls and outside.
Further, described magnetic signal receiver module comprises first magnetic antenna, amplifying circuit, filtering circuit and the decoding circuit that connects successively, described decoding circuit is connected with described master controller, described first magnetic antenna receives the magnetic signal of exterior terminal emission and is converted to electric signal, described amplifying circuit receives the electric signal of described first magnetic antenna output and amplifies, described filtering circuit carries out filtering with the electric signal of described amplifying circuit output, and described decoding circuit is decoded to the electric signal of filtering circuit output and outputed to described master controller.
Further, described magnetic signal receiver module also comprises demodulator circuit, and described demodulator circuit is arranged between described filtering circuit and the decoding circuit, and described demodulator circuit carries out the electric signal of described filtering circuit output demodulation process and outputs to described decoding circuit.
Further, described first magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card.
Further, described magnetic signal transmitter module comprises second magnetic antenna, driving circuit, D/A change-over circuit and the coding circuit that connects successively, described coding circuit is connected with described master controller, the encoding digital signals that described coding circuit provides described master controller, described D/A change-over circuit is converted to simulating signal with the digital signal of described coding circuit output, described driving circuit amplifies the simulating signal of described D/A change-over circuit output, and drives described second magnetic antenna generation and send magnetic signal to exterior terminal.
Further, described magnetic signal receiver module also comprises modulation circuit, described demodulator circuit is arranged between described D/A change-over circuit and the coding circuit, and described D/A change-over circuit is modulated and outputed to described modulation circuit with the digital signal of described coding circuit output.
Further, an end of described second magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card, and the other end is arranged on the outside of described radio-frequency (RF) IC card.
Further, described radio-frequency (RF) receiving and transmission module comprises radio-frequency (RF) transceiver, impedance matching network and the radio-frequency antenna that connects in regular turn, and described radio-frequency (RF) transceiver is connected with described master controller by universal serial bus.
Further, described radio-frequency (RF) IC card also comprises interface module, and described master controller carries out data transmission by described interface module and portable terminal.
Further, described radio-frequency (RF) IC card also comprises communication control module, and described communication control module is for the user identity identification data that are used for mobile communication of storing and handle mobile terminal provides.
Further, described magnetic signal transmitter module and described magnetic signal receiver module switch unlatching work with the time division duplex module under the control of described master controller.
The present invention also provides a kind of communicator, and it comprises portable terminal and above-mentioned radio-frequency (RF) IC card, and described portable terminal is used for carrying out mobile communication with the outside, and described radio-frequency (RF) IC card is for the user identity identification data of storing and handle mobile terminal provides.
Radio-frequency (RF) IC card provided by the invention, " radio-frequency (RF) IC card " that both can be used as passive type used, and also can be used as active " radio-frequency card reader " and uses, and has dual-use function; Realize in an effective and controlled communication distance scope, communicating between two portable terminals, to guarantee reading and writing the safety of both sides' transaction with reliable.
Description of drawings
Fig. 1 is the circuit connecting relation structural drawing of radio-frequency (RF) IC card provided by the invention;
Fig. 2 is the concrete structure block diagram of magnetic signal transmitter module, magnetic signal receiver module and rf data transceiver module in the radio-frequency (RF) IC card shown in Figure 1 provided by the invention;
Fig. 3 is the radio-frequency (RF) IC card shape assumption diagram of a kind of embodiment provided by the invention;
Fig. 4 is the synoptic diagram of a kind of communicator provided by the invention and radio-frequency (RF) IC card mounting means.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used for explaining the present invention, is not for limiting scope of the present invention.
Fig. 1 shows the annexation between each module in the radio-frequency (RF) IC card.Radio-frequency (RF) IC card with read-write capability provided by the present invention comprises master controller, rf data transceiver module, magnetic signal transmitter module, magnetic signal receiver module, communication control module, interface module etc.Described master controller is used for timesharing and controls described magnetic signal transmitter module and described magnetic signal receiver module unlatching work; When described magnetic signal receiver module unlatching work, the magnetic signal receiver module receives the magnetic signal of exterior terminal emission, and the external magnetic signal is converted to electric signal outputs to described master controller, the described rf data transceiver module of described main controller controls and exterior terminal carry out the rf data exchange; When described magnetic signal transmitter module unlatching work, the magnetic signal transmitter module produces and launches magnetic signal to exterior terminal, described rf data transceiver module receives the affirmation signal of exterior terminal emission and is converted to electric signal and outputs to described master controller, and the rf data exchange is carried out in the described rf data transceiver module of described main controller controls and outside.Described radio-frequency (RF) IC card is by the communication distance of described magnetic signal receiver module by magnetic characteristic control and described exterior terminal; Described radio frequency IC carries out message exchange by described rf data transceiver module and described exterior terminal, and wherein exterior terminal can be the mobile phone terminal of radio-frequency card reader or band radio-frequency (RF) IC card.
Particularly, described magnetic signal receiver module receives first magnetic signal and sends described master controller to by first magnetic antenna; The magnetic signal transmitter module for generation of and launch second magnetic signal by second magnetic antenna; When the magnetic signal receiver module is in accepting state, master controller judges according to first magnetic signal that receives whether described radio-frequency (RF) IC card and radio frequency communication distance between the radio-frequency unit of launching this first magnetic signal meet the requirements, at this moment, the magnetic signal transmitter module is in closed condition; When the magnetic signal transmitter module is in emission state, the emission of main controller controls magnetic signal transmitter module has second magnetic signal of unique characteristics, after exterior terminal is received this second magnetic signal, the information that the exterior terminal transmitting acknowledgement receives is to described rf data transceiver module, at this moment, the magnetic signal receiver module is in closed condition.
Wherein, described first magnetic signal carries the radio-frequency card reader of this first magnetic signal of emission or the identification information of portable terminal; Described magnetic signal receiver module and magnetic signal transmitter module are TDD mode.
Composition and the function of each module are described below in conjunction with Fig. 2.
1) the magnetic signal receiver module is formed and function
Described magnetic signal receiver module comprises first magnetic antenna, amplifying circuit, filtering circuit, demodulator circuit and the decoding circuit that is linked in sequence, and decoding circuit is connected with master controller.Described first magnetic antenna receives the magnetic signal of exterior terminal emission and is converted to electric signal, described amplifying circuit receives the electric signal of described first magnetic antenna output and amplifies, described filtering circuit carries out filtering with the electric signal of described amplifying circuit output, and described decoding circuit is decoded to the electric signal of filtering circuit output and outputed to described master controller.Described demodulator circuit is nonessential assembly, and when the low frequency magnetic signal that receives was unmodulated baseband signal, the direct and described decoding circuit of described filtering circuit was connected.In addition, first magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card.
Particularly, described first magnetic antenna is responded to and is received first magnetic signal that carries this radio-frequency card reader id information that extraneous radio-frequency card reader produces, and is converted to electric signal; Described amplifying circuit amplifies processing to the electric signal of this reflection change of magnetic field strength, and the amplitude of lifting signal also is adjusted in the predetermined magnitude range; Described filtering circuit carries out filtering to the electric signal after amplifying to be handled, and suppresses noise and interference outside the useful signal frequency band range; Described demodulator circuit carries out corresponding demodulation process according to the modulation system that radio-frequency card reader adopts to filtered signal; The processing of decoding accordingly of the signal of the coded system that described decoding circuit adopts according to radio-frequency card reader after to demodulation.At last, master controller further processes the digital baseband signal that obtains by above signal flow, judge the size of the magnetic field intensity of sensing according to signal amplitude, thereby determine radio-frequency card reader to the one-way communication distance of the mobile communication terminal of the described radio-frequency (RF) IC card of equipment whether in preset range, obtain the radio-frequency card reader id information that carries in the baseband signal simultaneously, and determine whether to trigger next step action of execution.
2) the magnetic signal transmitter module is formed and function
Described magnetic signal transmitter module comprises coding circuit, modulation circuit, D/A change-over circuit, driving circuit and second magnetic antenna that is linked in sequence successively, described coding circuit is connected with master controller, the encoding digital signals that described coding circuit provides described master controller, described D/A change-over circuit is converted to simulating signal with the digital signal of described coding circuit output, described driving circuit amplifies the simulating signal of described D/A change-over circuit output, and drives described second magnetic antenna generation and send magnetic signal to exterior terminal.Described modulation circuit can be adjusted as required, and in the time only need carrying out the baseband signal transmission for the simplification signal link, the direct and described D/A change-over circuit of described coding circuit is connected.
At this moment, the entrained information of second magnetic signal that described master controller need be launched for generation of described radio-frequency (RF) IC card, this information is digital baseband signal; Described coding circuit is used for taking the coding of certain way to handle to the digital baseband signal that master controller provides, and the coded system viewing system requires and decides; Described modulation circuit is used for the digital baseband signal behind the coding is taked the modulation treatment of certain way, and the modulation system viewing system requires and decides; Digital modulated signal after described D/A change-over circuit is used for will encoding, modulating is converted to low-frequency analog signal; Described driving circuit is used for amplifying this low-frequency analog signal, and drives second magnetic antenna generation low frequency alternating magnetic field, sends second magnetic signal.
One end of described second magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card, and the other end is arranged on the outside of described radio-frequency (RF) IC card, the two ends of antenna need respectively with the SIM contact point in C4 be connected with C8.Second magnetic antenna can be made into the FPC(flexible circuit board) form, its with radio frequency IC circuit module between can be connected by the hard and soft plate mode of combining, also can connect by welding, the mode pasted.
3) the rf data transceiver module is formed and function
The rf data transceiver module comprises radio-frequency (RF) transceiver, impedance matching network and the radio-frequency antenna that is linked in sequence successively, described radio-frequency (RF) transceiver is connected by serial bus interface with described master controller, can select any one mode bus of supporting full duplex or half-duplex operation, for example serial peripheral bus (SPI) interface, UART Universal Asynchronous Receiver Transmitter (UART) interface etc.; Described impedance matching network be used for to connect radio-frequency (RF) transceiver and radio-frequency antenna, and it act as guarantees radiofrequency signal unreflected maximum power transfer on link of launching or receiving; Described radio-frequency antenna is used for to extraneous space radiation energy of electromagnetic field and receives from aerial electromagnetic field, and it can be unipole antenna form or dipole antenna form.
When this radio-frequency (RF) IC card was used for mobile communication terminal, this radio-frequency (RF) IC card can also have interface module and communication control module.
4) interface module
Described interface module is used for providing the external interface of described radio-frequency (RF) IC card and mobile communication terminal, and its interface characteristic meets the requirement of ISO/IEC 7816 standards.
5) communication control module
Described communication control module is used for storage and handles the user identity identification data of the mobile phone service that the operator of described radio-frequency (RF) IC card support provides, and and the smart card principal and subordinate interface of master controller by standard carry out data interaction.
Be example with the portable terminal, a kind of practical application of this radio-frequency (RF) IC card is described.Fig. 3 shows a kind of radio-frequency (RF) IC card shape assumption diagram, it can be used in the portable terminal, radio-frequency (RF) IC card also comprises the SIM card contact point that contacts with mobile terminal main body except comprising master controller, rf data transceiver module, magnetic signal receiver module and magnetic signal transmitter module.
Fig. 4 shows a kind of communicator, and it comprises portable terminal and above-mentioned radio-frequency (RF) IC card.Described portable terminal is used for carrying out mobile communication with the outside, and described radio-frequency (RF) IC card is for the user identity identification data of storing and handle mobile terminal provides.Fig. 4 also shows the synoptic diagram of the mounting means of described radio-frequency (RF) IC card in portable terminal.
Inventive concept and method are equally applicable to other application models of short-range communication.
Claims (12)
1. radio-frequency (RF) IC card, it is characterized in that, this radio-frequency (RF) IC card comprises master controller, rf data transceiver module, magnetic signal transmitter module and magnetic signal receiver module, and described master controller is used for timesharing and controls described magnetic signal transmitter module and described magnetic signal receiver module unlatching work; When described magnetic signal receiver module unlatching work, described magnetic signal receiver module receives the magnetic signal of exterior terminal emission, and the external magnetic signal is converted to electric signal outputs to described master controller, the described rf data transceiver module of described main controller controls and exterior terminal carry out the rf data exchange; When described magnetic signal transmitter module unlatching work, described magnetic signal transmitter module produces and launches magnetic signal to exterior terminal, described rf data transceiver module receives the affirmation signal of exterior terminal emission and is converted to electric signal and outputs to described master controller, and the rf data exchange is carried out in the described rf data transceiver module of described main controller controls and outside.
2. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described magnetic signal receiver module comprises first magnetic antenna, amplifying circuit, filtering circuit and the decoding circuit that connects successively, described decoding circuit is connected with described master controller, described first magnetic antenna receives the magnetic signal of exterior terminal emission and is converted to electric signal, described amplifying circuit receives the electric signal of described first magnetic antenna output and amplifies, described filtering circuit carries out filtering with the electric signal of described amplifying circuit output, and described decoding circuit is decoded to the electric signal of filtering circuit output and outputed to described master controller.
3. radio-frequency (RF) IC card as claimed in claim 2 is characterized in that,
Described magnetic signal receiver module also comprises demodulator circuit, and described demodulator circuit is arranged between described filtering circuit and the decoding circuit, and described demodulator circuit carries out the electric signal of described filtering circuit output demodulation process and outputs to described decoding circuit.
4. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described first magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card.
5. as the arbitrary described radio-frequency (RF) IC card of claim 1 to 4, it is characterized in that,
Described magnetic signal transmitter module comprises second magnetic antenna, driving circuit, D/A change-over circuit and the coding circuit that connects successively, described coding circuit is connected with described master controller, the encoding digital signals that described coding circuit provides described master controller, described D/A change-over circuit is converted to simulating signal with the digital signal of described coding circuit output, described driving circuit amplifies the simulating signal of described D/A change-over circuit output, and drives described second magnetic antenna generation and send magnetic signal to exterior terminal.
6. radio-frequency (RF) IC card as claimed in claim 5 is characterized in that,
Described magnetic signal receiver module also comprises modulation circuit, and described demodulator circuit is arranged between described D/A change-over circuit and the coding circuit, and described D/A change-over circuit is modulated and outputed to described modulation circuit with the digital signal of described coding circuit output.
7. radio-frequency (RF) IC card as claimed in claim 6 is characterized in that,
One end of described second magnetic antenna is arranged on the inside of described radio-frequency (RF) IC card, and the other end is arranged on the outside of described radio-frequency (RF) IC card.
8. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described radio-frequency (RF) receiving and transmission module comprises radio-frequency (RF) transceiver, impedance matching network and the radio-frequency antenna that connects in regular turn, and described radio-frequency (RF) transceiver is connected with described master controller by universal serial bus.
9. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described radio-frequency (RF) IC card also comprises interface module, and described master controller carries out data transmission by described interface module and portable terminal.
10. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described radio-frequency (RF) IC card also comprises communication control module, and described communication control module is for the user identity identification data that are used for mobile communication of storing and handle mobile terminal provides.
11. radio-frequency (RF) IC card as claimed in claim 1 is characterized in that,
Described magnetic signal transmitter module and described magnetic signal receiver module switch unlatching work with the time division duplex module under the control of described master controller.
12. a communicator is characterized in that,
It comprises portable terminal and as the arbitrary described radio-frequency (RF) IC card of claim 1 to 11, described portable terminal is used for carrying out mobile communication with the outside, and described radio-frequency (RF) IC card is for the user identity identification data of storing and handle mobile terminal provides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210059748XA CN103310264A (en) | 2012-03-08 | 2012-03-08 | Radio frequency IC card and communication device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210059748XA CN103310264A (en) | 2012-03-08 | 2012-03-08 | Radio frequency IC card and communication device |
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| CN103310264A true CN103310264A (en) | 2013-09-18 |
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| CN201210059748XA Pending CN103310264A (en) | 2012-03-08 | 2012-03-08 | Radio frequency IC card and communication device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316191A (en) * | 2017-05-10 | 2017-11-03 | 上海易码信息科技有限公司 | The information transceiving device of magnetic and the information transmitting methods of magnetic and transfer account method |
| CN110073314A (en) * | 2016-12-22 | 2019-07-30 | 微软技术许可有限责任公司 | Magnetic tracking device double mode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0675459A2 (en) * | 1994-03-30 | 1995-10-04 | Mitsubishi Denki Kabushiki Kaisha | Noncontact IC card, card reader/writer, and card system |
| CN101124805A (en) * | 2005-01-20 | 2008-02-13 | 斯盖沃克斯瑟路申斯公司 | Integrated multi-band transceiver for use in mobile communication device |
| CN201057561Y (en) * | 2007-04-17 | 2008-05-07 | 深圳市远望谷信息技术股份有限公司 | Fixed radio frequency reader-writer |
| CN101517599A (en) * | 2006-07-26 | 2009-08-26 | 韩国电子通信研究院 | Apparatus and method for integrated reader and tag |
| CN101517430A (en) * | 2006-09-25 | 2009-08-26 | 马尔科·波罗 | Device for controlling personal belongings |
| CN102096836A (en) * | 2009-12-09 | 2011-06-15 | 国民技术股份有限公司 | Radio frequency device, radio frequency card reader and related communication system and communication method |
| US20110165862A1 (en) * | 2008-11-26 | 2011-07-07 | Nationz Technologies Inc. | Rf sim card, card reader, and communication method |
-
2012
- 2012-03-08 CN CN201210059748XA patent/CN103310264A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0675459A2 (en) * | 1994-03-30 | 1995-10-04 | Mitsubishi Denki Kabushiki Kaisha | Noncontact IC card, card reader/writer, and card system |
| CN101124805A (en) * | 2005-01-20 | 2008-02-13 | 斯盖沃克斯瑟路申斯公司 | Integrated multi-band transceiver for use in mobile communication device |
| CN101517599A (en) * | 2006-07-26 | 2009-08-26 | 韩国电子通信研究院 | Apparatus and method for integrated reader and tag |
| CN101517430A (en) * | 2006-09-25 | 2009-08-26 | 马尔科·波罗 | Device for controlling personal belongings |
| CN201057561Y (en) * | 2007-04-17 | 2008-05-07 | 深圳市远望谷信息技术股份有限公司 | Fixed radio frequency reader-writer |
| US20110165862A1 (en) * | 2008-11-26 | 2011-07-07 | Nationz Technologies Inc. | Rf sim card, card reader, and communication method |
| CN102096836A (en) * | 2009-12-09 | 2011-06-15 | 国民技术股份有限公司 | Radio frequency device, radio frequency card reader and related communication system and communication method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110073314A (en) * | 2016-12-22 | 2019-07-30 | 微软技术许可有限责任公司 | Magnetic tracking device double mode |
| CN110073314B (en) * | 2016-12-22 | 2021-11-16 | 微软技术许可有限责任公司 | Magnetic tracker dual mode |
| CN107316191A (en) * | 2017-05-10 | 2017-11-03 | 上海易码信息科技有限公司 | The information transceiving device of magnetic and the information transmitting methods of magnetic and transfer account method |
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Application publication date: 20130918 |