CN204143477U - Support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch - Google Patents
Support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch Download PDFInfo
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- CN204143477U CN204143477U CN201420463372.3U CN201420463372U CN204143477U CN 204143477 U CN204143477 U CN 204143477U CN 201420463372 U CN201420463372 U CN 201420463372U CN 204143477 U CN204143477 U CN 204143477U
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
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- 238000012545 processing Methods 0.000 description 3
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- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
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- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch of supporting, comprise a card and be integrated in 13.56M induction coil antenna, active load codec chip, NFC codec processor and the MCU safety chip in card; Card is provided with SIM card standard copper connecting terminal; 13.56M induction coil antenna, active load codec chip, NFC codec processor, MCU safety chip, SIM card standard copper connecting terminal are connected successively; The pin of the SWPIO of NFC codec processor is connected with the C6 contact in SIM card standard copper connecting terminal.The utility model both can be operated in commonly not to be possessed in the mobile phone terminal of NFC function, also can be operated in the mobile phone having contained NFC function, such radio frequency mobile phone Subscriber Identity Module, its range of application will be more extensive, user uses flexibly more convenient, the dark welcome by market.
Description
Technical field
The utility model relates to a kind of Mobile phone card, particularly relates to a kind of radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch of supporting.
Background technology
(NFC full name is Near Field Communication to near-field communication,) be the one closely high frequency wireless communication technology grown up based on RFID technique, be operated in 13.56MHz frequency range, electronic identity identification or data-transformation facility can be realized in short distance, be commonly used in mobile payment field.
Realize NFC technique route and usually have following two schemes:
The first is, SWP card scheme (SWP:Single Wire Protocol, single-threaded agreement).Support that cellphone subscriber's identification card (SIM card) of SWP agreement also claims SWP card, SWP card is a kind of near-field communication card met based on 13.56MHz frequency range in international table, is a kind ofly can SWP agreement and radio frequency unit/antenna used to carry out the usim card sheet of data communication based on 13.56MHz frequency range in close distance radio frequency electromagnetic field environment.SWP card can be widely used in the near-field communication business of open environment, as stored value card, Bus Card etc.Due in SWP card near field communication solution, radio frequency and CLF (ContactLess Frontend, non-connect front end) are usually in the terminal built-in, and therefore SWP card is the mobile terminal needing to use supporting support NFC function commencing business.In other words, support the induction antenna of near-field communication, be built in mobile phone terminal, SWP card carries out data communication by C6 contact and the CLF being built in terminal.Communication completes based on SWP agreement, and therefore C6 contact is defined as SWIO interface.SWP interface is a kind of UICC and non-ly connects Bit Oriented stream, point-to-point communications protocol between front end (CLF).
The second is, full card scheme.In the patent of " mobile phone intelligent card being with twireless radio-frequency communication function and the peripheral processor matched ", the patent No.: ZL 200410036263.4, the 2.4G RF-SIM card realized, be called for short RF-SIM, it is that RF-less radio-frequency integrated circuit, antenna are placed in card, realizing Non-contact mobile phone and pay application, is a kind of full card scheme adopting 2.4GHz frequency.Adopt 13.56MHz frequency range, realize the RF-SIM of 13.56MHz, induction antenna and relevant circuit arrangement, be made in a card, also can realize NFC technique, complete mobile payment function, be commonly referred to 13.56M and entirely block.RF-SIM entirely blocks and compares with common SIM, RF-SIM card adds less radio-frequency integrated circuit, Anneta module, radio frequency and CLF (ContactLess Frontend, non-connect front end) are built in card, directly carry out the transaction of near-field communication finishing service by the device in card.
SWP card with entirely block scheme comparison, use the user of SWP card must hold the mobile phone terminal supporting NFC front end, or change the mobile phone supporting NFC front end, and use the user of full card, mobile phone terminal can not be changed, for the application in market and popularization, adopt full card scheme undoubtedly, have more advantage.
But, the progress of technology and the development in market walk abreast often, commercially, no matter be full card, or SWP card, all can run into different mobile phone terminal environment, that is, Quan Kahui is used in the mobile phone supporting NFC front end, and also can be used in common support in the mobile phone of NFC, SWP is like this too.Concerning full card, because itself has the function of NFC, it does not need the NFC of mobile phone terminal to support, if but user uses the mobile phone possessing NFC front-end functionality, non-contact front-end in that mobile phone will clash with the induction antenna in card, thus impact uses.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art, a kind of radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch of supporting is provided, when mobile phone terminal has NFC front end, this radio-frequency SIM card closes the NFC front end in card automatically, this radio frequency SIM card crosses the NFC front end of mobile phone terminal and closely exchanges data is carried out in outside, when mobile phone terminal does not have NFC front end, this radio-frequency SIM card starts the NFC front end in card automatically, this radio-frequency SIM card carries out closely exchanges data by the NFC front end in card and outside, thus avoid the drawback that non-contact front-end in mobile phone and the induction antenna in card clash and occur.
The utility model solves the technical scheme that its technical matters adopts: a kind ofly support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch, and comprises a card and is integrated in 13.56M induction coil antenna, active load codec chip, NFC codec processor and the MCU safety chip in card; Card is provided with SIM card standard copper connecting terminal; 13.56M induction coil antenna is connected with active load codec chip, active load codec chip is connected with NFC codec processor, NFC codec processor is connected with MCU safety chip, and MCU safety chip is connected with SIM card standard copper connecting terminal; Wherein, described active load codec chip adopts model to be the chip of BOOSTER, and described NFC codec processor adopts model to be the chip of AT90SC352208RCV, and the model of described MCU safety chip is Z32D576; The pin of the SWPIO of described NFC codec processor is connected with the C6 contact in SIM card standard copper connecting terminal.
7th pin of described NFC codec processor is connected with the 14th pin of active load codec chip, 9th pin of NFC codec processor is connected with the 13rd pin of active load codec chip, and the 8th pin of NFC codec processor is connected with the 12nd pin of active load codec chip.
2nd pin of described NFC codec processor is connected with the 15th pin of MCU safety chip, 14th pin of described NFC codec processor is connected with the 14th pin of MCU safety chip, and the 1st pin of described NFC codec processor is connected with the 17th pin of MCU safety chip.
18th pin of described MCU safety chip is connected with the C3 contact in SIM card standard copper connecting terminal, 19th pin of described MCU safety chip is connected with the C2 contact in SIM card standard copper connecting terminal, 9th pin of described MCU safety chip is connected with the C7 contact in SIM card standard copper connecting terminal, the VCC pin of described MCU safety chip is connected with the C1 contact in SIM card standard copper connecting terminal, and the VSS pin of described MCU safety chip is connected with the C5 contact in SIM card standard copper connecting terminal.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, it is the full card design adopting 13.56M frequency range, in card, comprise the induction antenna of MCU safety chip, NFC processor, active load codec chip and 13.56M, that is: non-ly front end (ContactLess Frontend) is connect, the SWPIO of NFC processor, connects C6 contact, carries out data communication with the CLF being built in terminal.Communication, based on SWP agreement, completes and non-ly connects Bit Oriented stream, point-to-point communications protocol between front end (CLF), and non-also in Connection Card of NFC processor connects front end simultaneously.During use, the utility model is contained in the mobile phone terminal comprising NFC front end, by the connection signal on SIM card holder C6, be correlated with the working state signal of NFC system in detection of handset front end, when have detect mobile phone front end be correlated with the working state signal of NFC system time, NFC processor of the present utility model, to automatically close the NFC front end in card, the treatment channel with extraneous NFC communication, give mobile phone terminal, and adopt SWP agreement, communicate with mobile phone front end.Otherwise, if the utility model can't detect mobile phone front end with being correlated with NFC system working state signal, or is operated in regular handset terminal, namely do not comprise the regular handset of NFC front end, the utility model then starts NFC processor in card, as the treatment channel with extraneous NFC communication.
Compared with prior art, the beneficial effects of the utility model are:
The utility model both can be operated in commonly not to be possessed in the mobile phone terminal of NFC function, also can be operated in the mobile phone having contained NFC function, such radio frequency mobile phone Subscriber Identity Module, its range of application will be more extensive, user uses flexibly more convenient, the dark welcome by market.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of radio-frequency SIM card supporting that NFC terminal front end and card internal antenna automatically switch of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Embodiment, shown in Fig. 1, Fig. 2, a kind of radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch of supporting of the present utility model, support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch, comprise a card and be integrated in 13.56M induction coil antenna 1, active load codec chip 2, NFC codec processor 3 and the MCU safety chip 4 in card; Card is provided with SIM card standard copper connecting terminal 5; 13.56M induction coil antenna 1 is connected with active load codec chip 2, active load codec chip 2 is connected with NFC codec processor 3, NFC codec processor 3 is connected with MCU safety chip 4, and MCU safety chip 4 is connected with SIM card standard copper connecting terminal 5; Wherein, described active load codec chip 2 adopts model to be the chip of BOOSTER, and described NFC codec processor 3 adopts model to be the chip of AT90SC352208RCV, and the model of described MCU safety chip 4 is Z32D576; The pin (i.e. the 12nd pin) of the SWPIO of described NFC codec processor is connected with the C6 contact in SIM card standard copper connecting terminal 5.
7th pin of described NFC codec processor (i.e. chip N2) is connected with the 14th pin of active load codec chip (i.e. chip N1), 9th pin of NFC codec processor (i.e. chip N2) is connected with the 13rd pin of active load codec chip (i.e. chip N1), and the 8th pin of NFC codec processor (i.e. chip N2) is connected with the 12nd pin of active load codec chip (i.e. chip N1).
2nd pin of described NFC codec processor (i.e. chip N2) is connected with the 15th pin of MCU safety chip (i.e. chip N3), 14th pin of described NFC codec processor (i.e. chip N2) is connected with the 14th pin of MCU safety chip (i.e. chip N3), and the 1st pin of described NFC codec processor (i.e. chip N2) is connected with the 17th pin of MCU safety chip (i.e. chip N3).
18th pin of described MCU safety chip (i.e. chip N3) is connected with the C3 contact in SIM card standard copper connecting terminal, 19th pin of described MCU safety chip (i.e. chip N3) is connected with the C2 contact in SIM card standard copper connecting terminal, 9th pin of described MCU safety chip (i.e. chip N3) is connected with the C7 contact in SIM card standard copper connecting terminal, the VCC pin of described MCU safety chip (i.e. chip N3) is connected with the C1 contact in SIM card standard copper connecting terminal, the VSS pin of described MCU safety chip (i.e. chip N3) is connected with the C5 contact in SIM card standard copper connecting terminal.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, it is the full card design adopting 13.56M frequency range, in card, comprise the induction antenna 1 of MCU safety chip 4, NFC processor 3, active load codec chip 2 and 13.56M, that is: non-ly front end (ContactLess Frontend) is connect, the SWPIO of NFC processor, connects C6 contact, carries out data communication with the CLF being built in terminal.Communication, based on SWP agreement, completes and non-ly connects Bit Oriented stream, point-to-point communications protocol between front end (CLF), and non-also in Connection Card of NFC processor connects front end simultaneously.During use, the utility model is contained in the mobile phone terminal comprising NFC front end, by the connection signal on SIM card holder C6, be correlated with the working state signal of NFC system in detection of handset front end, when have detect mobile phone front end be correlated with the working state signal of NFC system time, NFC processor of the present utility model, to automatically close the NFC front end in card, the treatment channel with extraneous NFC communication, give mobile phone terminal, and adopt SWP agreement, communicate with mobile phone front end.Otherwise, if the utility model can't detect mobile phone front end with being correlated with NFC system working state signal, or is operated in regular handset terminal, namely do not comprise the regular handset of NFC front end, the utility model then starts NFC processor in card, as the treatment channel with extraneous NFC communication.The utility model is to provide a kind of connecting interface, by the C6 contact of SIM card standard copper connecting terminal, realize the NFC codec processor in card to be connected with the NFC front end of mobile phone terminal, as for the NFC front end of NFC codec processor how detection of handset terminal, and how to close and open NFC front end in card, adopt existing routine techniques to solve.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, 13.56M induction coil antenna 1 can adopt the patent No. for the antenna structure described in the utility model of ZL201420043596.9, induction coil antenna is for receiving the electromagnetic signal of induction card recognizer or card reader, also the signal after sending decoding process is completed, after modulation, in the form of electric current, card recognition device or card reader is passed to by this induction coil antenna with field signal
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, active load codec chip 2 adopts the BOOSTER chip N1 of French Inside company, is a kind of by active load modulation detuner inductively.With the know-why of original I SO14443 agreement unlike, it is by receiving and send signal extraction signal period of induction coil antenna and synchronous inner oscillator, the rectification of settling signal.And active load modulation circuit cooperation under, the modulation of settling signal, by process after signal be applied to induction coil antenna by amplification.Data-interface is responsible for the decoding processing device digital signal of demodulation being sent to higher level, or the data that reception higher level code processing apparatus sends.The function of active load codec chip 2 has been admission detection and the modulating/demodulating of magnetic signal.Once to swipe the card flow process: when card enters in 13.56Mhz magnetic field, the signal that the induction coil antenna of the microminiaturization in card senses, demodulates data, gives chip N2 decode by 3 line interfaces or DCLB interface after chip N1 amplifies magnetic signal.Modulation function: when card is at on-site, chip N1 transmits by 3 line interfaces or DCLB interface the data come chip N2 and carries out modulating and convert electric signal to and deliver to antenna transmission after amplification.
Induction coil antenna and active load codec chip N1, constitute NFC front end in above-described card.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, NFC codec processor 3 adopts secure chip processor AT90SC352208RCV and the chip N2 of atmel corp, the signal completed sending from active load modulation detuner N1 is decoded, and decoded data is carried out protocol analysis by ISO14443A/B agreement, the data after parsing depending on application demand can by oneself or send to higher level MCU (chip N3) process; The data or instruction that are sent by the MCU of higher level (chip N3) can be received, if need the data sending to card-reading apparatus, send active load modulation detuner N1 after encoded to and send to reader device by magnet passage.
The SWPIO of NFC processor, by C6 contact, connects the SWP signal of mobile phone terminal.
The NFC codec processor 3 i.e. function of chip N2 has as follows:
Function one: NFC front end in the card consisted of active load codec chip N1 and the induction coil antenna 1 of connection, the air protocol of the encoding and decoding and ISO1444A or B that complete 13.56Mhz data code flow realizes.Chip N2 carries out the code stream that chip N1 is come by 3 line interfaces or the transmission of DCLB interface to decode and carries out protocol analysis by ISO14443 A or category-B agreement, then submits to feedback data to pass card reader or arrangement for reading back to chip N1 modulation by ISO14443 A or category-B agreement by 3 line interfaces or DCLB interface.
Function two: the storage of magnet passage transaction data and the logic realization of application.
Function three: the setting completing automatic detection to mobile phone terminal SWP signal and NFC passage.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, MCU safety chip 4 adopts processor security chip Z32D576 and the chip N3 of national technology company, and it is data processing core device of the present utility model; It completes all functions of cellphone subscriber's identification card Telecommunication Sector, can be controlled and data download reading subordinate and chip N2 by card reader interface, can also the NFC Transaction Information that transmits of process chip N2, and by the information after process, by the SIM card standard copper connecting terminal in ISO7816 interface and card, complete the communication with mobile terminal mobile phone.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, connects the SIM card deck of mobile terminal mobile phone by SIM card standard copper connecting terminal 5, obtain the transmission of power supply supply and settling signal.Card substrate adopts BT material FPC technique, and substrate thickness 0.15-0.26mm, substrate is installed all chips and element, comprises crystal resonator, induction coil antenna and peripheral components.Card adopts SIP technique, and die casting completes the whole card of SIM of a standard dimensions.
The radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch, after system electrification, safety chip Z32D576 and chip N3 puts reset, start sheet internal program to start working, safety chip Z32D576 and chip N3 passes through connection signal again, reset is put to NFC codec processor AT90SC352208RCV and chip N2, the SWPIO of AT90SC352208RCV chip, by the C6 contact of deck, if detect that mobile phone terminal has SWP signal, and issue the normal work state information in NFC front end, then do not start the NFC front end in card, put NFC front end in card in closed condition, the passage of NFC is set to SWP mode.Otherwise, if can't detect mobile phone terminal have SWP signal, then start the NFC front end in card, put NFC front end in card in opening, the passage of NFC is set to interior NFC (BOOSTER) mode of card.
When being operated in card under NFC mode, carry out mobile electronic payment swipe the card transaction time, the card recognition device that induction coil antenna 1 senses or the electromagnetic signal of card reader are through there being active load codec chip N1 demodulation, data are sent to NFC codec processor N2, decoded transaction data or be packaged into a transaction record and be stored in the ram space of NFC codec processor, or receive the instruction of next stage safety chip MCU and chip N3, by Packet Generation to next stage safety chip MCU and chip N3.Safety chip MCU and chip N3, by ISO7810 interface, active data transaction display is sent to mobile terminal mobile phone screen, or by mobile terminal mobile phone by ISO7810 interface, Card Reader instruction is sent to safety chip MCU and chip N3, safety chip MCU and chip N3 reads the transaction record be stored in the ram space of NFC codec processor N2, and data feedback to mobile terminal mobile phone terminal, the screen of mobile terminal mobile phone shows.
Under being operated in SWP mode, mobile electronic payment transaction of swiping the card, similar to the working method under NFC mode, difference is, extraneous data stream, from the C6 contact of deck, have employed SWP agreement.
Above-described embodiment is only used for further illustrating the radio-frequency SIM card that support NFC terminal front end of the present utility model and card internal antenna automatically switch; but the utility model is not limited to embodiment; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all fall in the protection domain of technical solutions of the utility model.
Claims (4)
1. support to it is characterized in that the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch: comprise a card and be integrated in 13.56M induction coil antenna, active load codec chip, NFC codec processor and the MCU safety chip in card; Card is provided with SIM card standard copper connecting terminal; 13.56M induction coil antenna is connected with active load codec chip, active load codec chip is connected with NFC codec processor, NFC codec processor is connected with MCU safety chip, and MCU safety chip is connected with SIM card standard copper connecting terminal; Wherein, described active load codec chip adopts model to be the chip of BOOSTER, and described NFC codec processor adopts model to be the chip of AT90SC352208RCV, and the model of described MCU safety chip is Z32D576; The pin of the SWPIO of described NFC codec processor is connected with the C6 contact in SIM card standard copper connecting terminal.
2. the radio-frequency SIM card that automatically switches of support NFC terminal front end according to claim 1 and card internal antenna, it is characterized in that: the 7th pin of described NFC codec processor is connected with the 14th pin of active load codec chip, 9th pin of NFC codec processor is connected with the 13rd pin of active load codec chip, and the 8th pin of NFC codec processor is connected with the 12nd pin of active load codec chip.
3. the radio-frequency SIM card that automatically switches of support NFC terminal front end according to claim 1 and card internal antenna, it is characterized in that: the 2nd pin of described NFC codec processor is connected with the 15th pin of MCU safety chip, 14th pin of described NFC codec processor is connected with the 14th pin of MCU safety chip, and the 1st pin of described NFC codec processor is connected with the 17th pin of MCU safety chip.
4. the radio-frequency SIM card that automatically switches of support NFC terminal front end according to claim 1 and card internal antenna, it is characterized in that: the 18th pin of described MCU safety chip is connected with the C3 contact in SIM card standard copper connecting terminal, 19th pin of described MCU safety chip is connected with the C2 contact in SIM card standard copper connecting terminal, 9th pin of described MCU safety chip is connected with the C7 contact in SIM card standard copper connecting terminal, the VCC pin of described MCU safety chip is connected with the C1 contact in SIM card standard copper connecting terminal, the VSS pin of described MCU safety chip is connected with the C5 contact in SIM card standard copper connecting terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463372.3U CN204143477U (en) | 2014-08-15 | 2014-08-15 | Support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420463372.3U CN204143477U (en) | 2014-08-15 | 2014-08-15 | Support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch |
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| CN204143477U true CN204143477U (en) | 2015-02-04 |
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| CN201420463372.3U Expired - Lifetime CN204143477U (en) | 2014-08-15 | 2014-08-15 | Support the radio-frequency SIM card that NFC terminal front end and card internal antenna automatically switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114118330A (en) * | 2020-08-28 | 2022-03-01 | 凌通科技股份有限公司 | Radio frequency identification integrated circuit and radio frequency identification code providing method |
-
2014
- 2014-08-15 CN CN201420463372.3U patent/CN204143477U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114118330A (en) * | 2020-08-28 | 2022-03-01 | 凌通科技股份有限公司 | Radio frequency identification integrated circuit and radio frequency identification code providing method |
| CN114118330B (en) * | 2020-08-28 | 2024-01-26 | 凌通科技股份有限公司 | Integrated radio frequency identification integrated circuit and radio frequency identification code providing method |
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