CN103378880A - Service terminal, NFC equipment and near field communication method - Google Patents
Service terminal, NFC equipment and near field communication method Download PDFInfo
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- CN103378880A CN103378880A CN2012101055765A CN201210105576A CN103378880A CN 103378880 A CN103378880 A CN 103378880A CN 2012101055765 A CN2012101055765 A CN 2012101055765A CN 201210105576 A CN201210105576 A CN 201210105576A CN 103378880 A CN103378880 A CN 103378880A
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Abstract
The invention provides a service terminal, NFC equipment and a near field communication method. The service terminal comprises: an NFC interaction module which is for identifying and communicating with the NFC equipment arranged outside the service terminal. The NFC equipment is internally provided with an NFC chip and is connected with the service terminal through a communication interface of the service terminal. Through the service terminal, the NFC equipment and the NFC method, the communication interface of the service terminal is externally connected with the NFC equipment, so that the effect of expansion of NFC functions is achieved.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of service terminal, a kind of NFC (Near Field Communication, near-field communication) equipment and a kind of near field communication method.
Background technology
NFC claims again wireless near field communication, is a kind of short-range high frequency wireless communication technology, allows to carry out contactless Point-to-Point Data Transmission (in ten centimetres) swap data between the electronic equipment.The NFC technology is developed by contact-free formula radio-frequency (RF) identification (RFID), and backward compatible RFID.The NFC technology is promoted mainly by Philips, Nokia and Sony the earliest, is mainly used in the handheld devices such as mobile phone.Because near-field communication has natural fail safe, therefore, the NFC technology is considered to have great application prospect in fields such as mobile-phone payments.
NFC equipment has three kinds of mode of operations usually, that is, and and mode card, point-to-point communication pattern and card reader pattern.Wherein, mode card refers to that for the noncontact mobile payment in using such as market, traffic etc., the user only need to be with mobile phone near card reader, and then the user only need input the password confirming transaction or directly receive transaction and get final product.For example, gate inhibition's control, ticket, admission ticket etc.Under this kind mode, card is powered by the RF territory of contactless card reader, even if mobile phone does not have electricity can work yet.The point-to-point communication pattern mainly realizes the wireless data exchange, with two linking of devices that possess the NFC function, can realize the data point-to-point transmission, as downloading music, exchange picture or synchronizer address book.Therefore, this kind pattern is so that by NFC, between a plurality of equipment such as digital camera, PDA, computer, the mobile phone, can carry out radio communication, swap date or service.The card reader pattern refers to that NFC equipment uses as contactless card reader, such as reading relevant information etc. from placard or Exhibition Information electronic tag.
Now, the means that service terminal are extended to support NFC function have: 1, transform SIM card, NFC chip and safety chip are placed on the SIM card, this scheme is owing to needing to increase a NFC induction antenna, so the structure suitability of service terminal and the enclosure material of service terminal etc. are had higher requirement; 2, transform the SD card, NFC chip and safety chip are placed on the SD card, this scheme need to increase a NFC induction antenna equally, and the structure suitability of service terminal and the enclosure material of terminal etc. are had higher requirement; 3, transform service terminal, NFC chip and safety chip and the design of NFC induction antenna are being placed on the service terminal, the suitability problem of service terminal has obtained good solution, but has increased the threshold that the user uses, and the user need to change service terminal.
In a word, no matter be the suitability problem of service terminal, still transform service terminal, above-mentioned NFC expansion means all make the service terminal reconstruction structure complicated, and NFC realizes that cost is higher.
Summary of the invention
The application's technical problem to be solved provides a kind of service terminal, a kind of NFC equipment and a kind of near field communication method, makes the service terminal reconstruction structure complicated to solve existing NFC expansion means, and NFC realizes the higher problem of cost.
In order to address the above problem, the application discloses a kind of service terminal, comprising: near-field communication NFC interactive module, be used for the NFC equipment that identification is arranged at described service terminal outside, and with described NFC devices communicating; Wherein, be provided with the NFC chip in the described NFC equipment, described NFC equipment is connected with described service terminal by the communication interface of described service terminal.
Preferably, described communication interface is the voice communication interface of described service terminal.
Preferably, in described NFC interactive module and described NFC devices communicating process, after the digital signal that described NFC interactive module sends to described NFC equipment with described service terminal is converted to audio analog signals, send to described NFC equipment, perhaps, described NFC interactive module receives and sends to described service terminal after described NFC equipment sends to the audio analog signals of described service terminal and is converted to digital signal; Wherein, the described NFC equipment audio analog signals that sends to described service terminal is changed acquisition by described NFC equipment to the digital signal that sends to described service terminal.
Preferably, the audio analog signals that described NFC equipment sends to described service terminal is encrypted the data that send to described service terminal by the safety chip in the described NFC equipment, and the digital signal of the data after encrypting is changed acquisition.
Preferably, also be provided with the NFC driver module in the described service terminal, described NFC interactive module is identified described NFC equipment by described NFC driver module; Perhaps, be provided with described NFC driver module in the described NFC equipment, described NFC interactive module is identified described NFC equipment by the NFC driver module that calls in the described NFC equipment.
In order to address the above problem, disclosed herein as well is a kind of NFC equipment, comprise NFC chip and communication interface; Wherein, described communication interface is used for being connected with the external communication interface of service terminal, with the outside of described NFC equipment connection to described service terminal, and with described service terminal and described NFC chip, realizes and the near-field communication of third party NFC equipment.
Preferably, the external communication interface of the communication interface of described NFC equipment and described service terminal is the voice communication interface.
Preferably, also be provided with modular converter in the described NFC equipment, be used for when described NFC equipment is communicated by letter with described service terminal, after the digital signal that described NFC equipment is sent to described service terminal is converted to audio analog signals, send to described service terminal by described voice communication interface.
Preferably, also be provided with safety chip in the described NFC equipment, be used for the data that send to described service terminal are encrypted, the digital signal of the data after encrypting is sent to described modular converter be converted to described audio analog signals.
Preferably, also be provided with the NFC driver module in the described NFC equipment, be used for calling for described service terminal so that described service terminal identify described NFC equipment and with described NFC devices communicating.
In order to address the above problem, disclosed herein as well is a kind of near field communication method, comprising: service terminal is by a coupled NFC equipment and third party NFC devices communicating; Wherein, it is outside that a described NFC equipment is arranged at described service terminal, is provided with the NFC chip in the described NFC equipment, and a described NFC equipment is connected with described service terminal by communication interface and communicates by letter.
Preferably, described communication interface is the voice communication interface.
Preferably, in described service terminal and a described NFC devices communicating process, after the digital signal that described service terminal will send to a described NFC equipment is converted to audio analog signals, send to a described NFC equipment, perhaps, described service terminal receives a described NFC equipment and sends to the audio analog signals of described service terminal and be converted to digital signal; Wherein, the described NFC equipment audio analog signals that sends to described service terminal is changed acquisition by a described NFC equipment to the digital signal that sends to described service terminal.
Preferably, described service terminal is identified a described NFC equipment in the following manner, and with a described NFC devices communicating: described service terminal drives the described NFC equipment of identification by the inner NFC that arranges, and with a described NFC devices communicating; Perhaps, described service terminal drives the described NFC equipment of identification by calling the described NFC that is arranged in the described NFC equipment, and with a described NFC devices communicating.
Compared with prior art, the application has the following advantages:
The application uses independently outside NFC equipment, link to each other with service terminal by communication interface, as long as service terminal can be identified this outside NFC equipment and communicate with, can realize service terminal, especially do not support the NFC expansion of the service terminal of NFC function, and need not the internal structure of service terminal be transformed, thereby having solved existing NFC expansion means makes the service terminal reconstruction structure complicated, NFC realizes the higher problem of cost, has reached the effect by the external NFC device extension of the communication interface NFC communication function of service terminal.
Description of drawings
Fig. 1 is the structured flowchart according to a kind of service terminal of the embodiment of the present application one;
Fig. 2 is the structured flowchart according to a kind of service terminal of the embodiment of the present application two;
Fig. 3 is the structured flowchart according to a kind of service terminal of the embodiment of the present application three;
Fig. 4 is the structured flowchart according to a kind of NFC equipment of the embodiment of the present application four;
Fig. 5 is the flow chart of steps according to a kind of near field communication method of the embodiment of the present application five.
Embodiment
For above-mentioned purpose, the feature and advantage that make the application can become apparent more, below in conjunction with the drawings and specific embodiments the application is described in further detail.
Embodiment one
With reference to Fig. 1, show the structured flowchart according to a kind of service terminal of the embodiment of the present application one.
Service terminal typically refers to the terminal of electronic equipment, includes but not limited to all kinds of wireless terminals, handheld device, PC etc.
The service terminal of present embodiment comprises: NFC interactive module 102, be used for the NFC equipment that identification is arranged at the service terminal outside, and with this NFC devices communicating; Wherein, be provided with the NFC chip in this NFC equipment, this NFC equipment is connected with service terminal by the communication interface 104 of service terminal.
In the present embodiment, outside NFC equipment can be the card of built-in NFC chip, also can be any other portable unit.Outside NFC equipment also has the communication interface corresponding with the communication interface 104 of service terminal, and service terminal and outside NFC equipment interconnect by communication interface.Wherein, above-mentioned communication interface includes but not limited to: the charging inlet of voice communication interface, USB interface, service terminal etc.
Service terminal identifies outside NFC equipment by its NFC interactive module 102, and communicates with, and realizes the NFC function.Wherein, can realize by corresponding driver the driver that carries such as service terminal to the identification of outside NFC equipment, perhaps, the driver that service terminal is uploaded under the network, perhaps, driver that service terminal obtains from other memory device etc.
Pass through present embodiment, use independently outside NFC equipment, link to each other with service terminal by communication interface, as long as service terminal can be identified this outside NFC equipment and communicate with, can realize service terminal, especially do not support the NFC expansion of the service terminal of NFC function, and need not the internal structure of service terminal be transformed, thereby having solved existing NFC expansion means makes the service terminal reconstruction structure complicated, NFC realizes the higher problem of cost, has reached the effect by the external NFC device extension of the communication interface NFC communication function of service terminal.
Embodiment two
With reference to Fig. 2, show the structured flowchart according to a kind of service terminal of the embodiment of the present application two.
In the present embodiment, the setting service terminal is portable terminal, and its inside is provided with corresponding NFC driver, and, set service terminal by the NFC equipment connection of voice communication interface with the outside.In general, the voice communication interface of service terminal has relatively uniform standard, connect service terminal and outside NFC equipment by the voice communication interface, so that the manufacturer's standard of outside NFC equipment is more unified, also so that outside NFC equipment has stronger versatility.
The portable terminal of present embodiment comprises: NFC driver module 202, NFC interactive module 204, and voice communication interface 206.
Wherein, be provided with corresponding NFC driver in the NFC driver module 202, NFC interactive module 204 is by the NFC equipment of NFC driver module 202 identification portable terminal outsides, and communicates with the NFC equipment of outside.Need to prove that NFC driver module 202 can be arranged at NFC interactive module 204 outsides, also can be arranged at NFC interactive module 204 inside, for NFC interactive module 204.
In the present embodiment, portable terminal is by the NFC equipment connection of voice communication interface 206 with the outside.Portable terminal has connected after the outside NFC equipment, in the process of NFC interactive module 204 and NFC devices communicating, after the digital signal that NFC interactive module 204 can send to portable terminal NFC equipment is converted to audio analog signals, send to again NFC equipment, NFC equipment also can be converted to digital signal and process after receiving this audio analog signals.Equally, NFC equipment is during to the portable terminal transmitted signal, after also the digital signal that sends to portable terminal can being converted to the audio-frequency module signal, send to again portable terminal, behind the audio analog signals that NFC interactive module 204 reception NFC equipment in the portable terminal send, be converted to digital signal, send to again portable terminal and process.
Preferably, also be provided with safety chip in the outside NFC equipment, be used for the data that send to portable terminal are encrypted.When NFC equipment sends data to portable terminal, safety chip is encrypted these data, such as, NFC equipment uses safety chip that the data that send to portable terminal are carried out certain cryptographic algorithm, the digital signal of the data after afterwards, NFC equipment will be encrypted again is converted to audio analog signals and sends to portable terminal.
Portable terminal is decrypted the data of encrypting having received carrying out that NFC equipment sends after the data of encrypting, and obtains data decryption.Wherein, can be undertaken by service terminal such as portable terminal the deciphering of enciphered data, return to again service terminal after also can sending to background server and be decrypted by service terminal.The Encrypt and Decrypt algorithm can suitably be selected according to actual conditions by those skilled in the art, and such as RSA Algorithm etc., the application is not restricted this.
Portable terminal by voice communication interface 206 external after the NFC equipment, the NFC external equipment just can become payment key or noncontact chip card or even a contactless card reader on the mobile phone, realize with the mutual of third party NFC equipment with communicate by letter.When NFC equipment as payment when key, can communicate by the voice communication interface 206 of portable terminal and the client (application) on the portable terminal, preferably, can by the safety chip on the NFC equipment data of client are encrypted and and the backstage communicate, thereby finish the authentication (the payment shield on the similar computer) of identity.When NFC external equipment as a noncontact chip card time, the user can hold this card, in the transaction (take pubic transport such as swiping the card, shopping etc. is swiped the card in the market) of swiping the card of the POS machine of supporting non-contact transaction, the while can also be supplemented (remaining sum writes in the card) with money to card online by the client of portable terminal.When NFC external equipment as contactless card reader the time, portable terminal can become a mobile POS, supports off line and online transaction.
That is to say, by present embodiment, make the built-in NFC functional chip of external equipment, communication is carried out on the voice communication interface by service terminal (in the present embodiment for portable terminal) and service terminal or professional backstage.By service terminal voice communication Interface Expanding NFC function, comprise 3 kinds of situations, a kind of is expansion NFC functions of card reader, and a kind of is expansion NFC card function, and at last a kind of is expansion NFC point communications functionality.Wherein, the functions of card reader of voice communication Interface Expanding NFC by service terminal comprises: the service terminal of not supporting the NFC function, equipment by the external built-in NFC functional chip of voice communication interface, can be so that this service terminal have possessed the non-function that connects card reader of NFC, the user utilizes this service terminal just can read the card of the non-connection function of any support, the information of label and equipment etc., such as, read the merchandise news on the placard electronic tag, coupon information reads card balance amount information etc.; The card function of voice communication Interface Expanding NFC by service terminal comprises: the service terminal of not supporting the NFC function, equipment by the external built-in NFC functional chip of voice communication interface, can be so that this service terminal have possessed the non-function that connects card of NFC, this moment, service terminal just equaled a non-card that connects, can in the applications such as market, public transport, parking, gate inhibition, use, the user only need with the service terminal of NFC external equipment near card reader, just can finish the application such as payment, gate inhibition; The point communications functionality of voice communication Interface Expanding NFC by service terminal comprises: the service terminal of not supporting the NFC function, equipment by the external built-in NFC functional chip of voice communication interface, can be so that this service terminal have possessed the function of NFC point-to-point communication, the user can carry out information exchange between with the service terminal of NFC external equipment at two, for example exchange visiting cards, address list, the information such as music, video.
Present embodiment is only take portable terminal as example, illustrated that the NFC expansion of portable terminal realizes, but it should be understood by those skilled in the art that other service terminal all can realize the NFC Function Extension with reference to present embodiment.
Embodiment three
With reference to Fig. 3, show the structured flowchart according to a kind of service terminal of the embodiment of the present application three.
In the present embodiment, setting NFC driver is arranged in the outside NFC equipment, and, set service terminal by the NFC equipment connection of USB (Universal Serial BUS, USB) interface with the outside.
The service terminal of present embodiment comprises: NFC interactive module 302 and usb communication interface 304.The NFC equipment of present embodiment comprises NFC driver module 306, wherein is provided with corresponding NFC driver.Simultaneously, NFC equipment also has the interface corresponding with the usb communication interface 304 of service terminal, being connected with service terminal, and communicates with service terminal.
In the present embodiment, after service terminal connects outside NFC equipment by usb communication interface 304, NFC interactive module 302 in the service terminal is called the NFC driver module 306 in the NFC equipment, read the NFC driver, the identification that realizes NFC equipment with communicate by letter, and then by this NFC equipment and other third party NFC equipment mutual with communicate by letter.
Preferably, also be provided with safety chip 308 in the NFC equipment, when NFC equipment and service terminal communicate, first data communication device crossed safety chip 308 and be encrypted, the data after will encrypting again send to service terminal.
By present embodiment, the NFC driving is arranged in the NFC equipment, improved the NFC device integration, simplified the operation of service terminal, also further facilitate the user and used NFC equipment and NFC function.
Need to prove that the USB interface of present embodiment only is exemplary illustration, other arbitrarily suitable interface (such as the interface that is used for charging of service terminal or bluetooth etc.) all can realize the NFC Function Extension with reference to present embodiment and previous embodiment.
Embodiment four
With reference to Fig. 4, show the structured flowchart according to a kind of NFC equipment of the embodiment of the present application four.
The NFC equipment of present embodiment comprises: NFC chip 402 and communication interface 404; Wherein, communication interface 404 is used for being connected with the external communication interface of service terminal, with the outside of NFC equipment connection to service terminal, and with service terminal and NFC chip 402, the near-field communication of realization and other third party NFC equipment.
Preferably, the external communication interface of the communication interface 404 of NFC equipment and service terminal is the voice communication interface.
Preferably, also be provided with modular converter 406 in the NFC equipment, be used for when NFC equipment is communicated by letter with service terminal, after the digital signal that NFC equipment is sent to service terminal is converted to audio analog signals, send to service terminal by the voice communication interface.
Preferably, also be provided with safety chip 408 in the NFC equipment, when service terminal is connected the voice communication interface and connects with NFC equipment, be used for the data that send to service terminal are encrypted, the digital signal of the data after encrypting is sent to modular converter 406 be converted to audio analog signals; And when service terminal is connected interface that other does not need D/A or mould/number conversion and connects with NFC equipment, be used for the data that send to service terminal are encrypted, the data after then will being encrypted by NFC equipment send to service terminal.
Preferably, also be provided with NFC driver module (not shown) in the NFC equipment, wherein be provided with the NFC driver, be used for calling for service terminal so that service terminal identification NFC equipment and with the NFC devices communicating.
By the NFC equipment of present embodiment, service terminal need not carry out structure of modification, can realize easily the NFC expansion, realizes the NFC function.
Embodiment five
With reference to Fig. 5, show the flow chart of steps according to a kind of near field communication method of the embodiment of the present application five.
The near field communication method of present embodiment may further comprise the steps:
Step S502: service terminal is by a coupled NFC equipment and third party NFC devices communicating.
Wherein, a NFC equipment is arranged at the service terminal outside, is provided with the NFC chip in the NFC equipment, and the communication interface of a NFC equipment by service terminal is connected with service terminal and communicates by letter.
Preferably, described communication interface is the voice communication interface.
Preferably, be in the situation of voice communication interface in described communication interface, in service terminal and a NFC devices communicating process, after the digital signal that service terminal will send to a NFC equipment is converted to audio analog signals, send to a NFC equipment, perhaps, service terminal receives a NFC equipment and sends to the audio analog signals of service terminal and be converted to digital signal; Wherein, the NFC equipment audio analog signals that sends to service terminal is changed acquisition by a NFC equipment to the digital signal that sends to service terminal.
Preferably, be provided with safety chip in the one NFC equipment, the audio analog signals that the one NFC equipment sends to service terminal is encrypted the data that send to service terminal by the safety chip in the NFC equipment, and the digital signal of the data after encrypting is changed acquisition.Perhaps, after the safety chip in the NFC equipment was encrypted the data that send to service terminal, the digital signal of the data after will being encrypted by a NFC equipment directly sent to service terminal.
Preferably, service terminal drives identification the one NFC equipment by the inner NFC that arranges, and with a NFC devices communicating; Perhaps, service terminal drives identification the one NFC equipment by calling the NFC that is arranged in the NFC equipment, and with a NFC devices communicating.
The near field communication method of present embodiment can realize by the service terminal among aforementioned a plurality of device embodiment and/or NFC equipment, and has the beneficial effect of corresponding device embodiment, do not repeat them here.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For embodiment of the method, description fairly simple, relevant part gets final product referring to the part explanation of device embodiment.
More than a kind of service terminal, NFC equipment and near field communication method that the application is provided, be described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.
Claims (14)
1. a service terminal is characterized in that, comprising:
Near-field communication NFC interactive module is used for the NFC equipment that identification is arranged at described service terminal outside, and with described NFC devices communicating;
Wherein, be provided with the NFC chip in the described NFC equipment, described NFC equipment is connected with described service terminal by the communication interface of described service terminal.
2. service terminal according to claim 1 is characterized in that, described communication interface is the voice communication interface of described service terminal.
3. service terminal according to claim 2, it is characterized in that, in described NFC interactive module and described NFC devices communicating process, after the digital signal that described NFC interactive module sends to described NFC equipment with described service terminal is converted to audio analog signals, send to described NFC equipment, perhaps, described NFC interactive module receives and sends to described service terminal after described NFC equipment sends to the audio analog signals of described service terminal and is converted to digital signal; Wherein, the described NFC equipment audio analog signals that sends to described service terminal is changed acquisition by described NFC equipment to the digital signal that sends to described service terminal.
4. service terminal according to claim 3, it is characterized in that, the audio analog signals that described NFC equipment sends to described service terminal is encrypted the data that send to described service terminal by the safety chip in the described NFC equipment, and the digital signal of the data after encrypting is changed acquisition.
5. service terminal according to claim 1 is characterized in that,
Also be provided with the NFC driver module in the described service terminal, described NFC interactive module is identified described NFC equipment by described NFC driver module;
Perhaps,
Be provided with described NFC driver module in the described NFC equipment, described NFC interactive module is identified described NFC equipment by the NFC driver module that calls in the described NFC equipment.
6. a near-field communication NFC equipment is characterized in that, comprises NFC chip and communication interface; Wherein, described communication interface is used for being connected with the external communication interface of service terminal, with the outside of described NFC equipment connection to described service terminal, and with described service terminal and described NFC chip, realizes and the near-field communication of third party NFC equipment.
7. NFC equipment according to claim 6 is characterized in that, the communication interface of described NFC equipment and the external communication interface of described service terminal are the voice communication interface.
8. NFC equipment according to claim 7, it is characterized in that, also be provided with modular converter in the described NFC equipment, be used for when described NFC equipment is communicated by letter with described service terminal, after the digital signal that described NFC equipment is sent to described service terminal is converted to audio analog signals, send to described service terminal by described voice communication interface.
9. NFC equipment according to claim 8, it is characterized in that, also be provided with safety chip in the described NFC equipment, be used for the data that send to described service terminal are encrypted, the digital signal of the data after encrypting is sent to described modular converter be converted to described audio analog signals.
10. each described NFC equipment in 9 according to claim 6, it is characterized in that, also be provided with the NFC driver module in the described NFC equipment, be used for calling for described service terminal so that described service terminal identify described NFC equipment and with described NFC devices communicating.
11. a near-field communication NFC method is characterized in that, comprising:
Service terminal is by a coupled NFC equipment and third party NFC devices communicating;
Wherein, it is outside that a described NFC equipment is arranged at described service terminal, is provided with the NFC chip in the described NFC equipment, and a described NFC equipment is connected with described service terminal by communication interface and communicates by letter.
12. method according to claim 11 is characterized in that, described communication interface is the voice communication interface.
13. method according to claim 12, it is characterized in that, in described service terminal and a described NFC devices communicating process, after the digital signal that described service terminal will send to a described NFC equipment is converted to audio analog signals, send to a described NFC equipment, perhaps, described service terminal receives a described NFC equipment and sends to the audio analog signals of described service terminal and be converted to digital signal; Wherein, the described NFC equipment audio analog signals that sends to described service terminal is changed acquisition by a described NFC equipment to the digital signal that sends to described service terminal.
14. method according to claim 11 is characterized in that, described service terminal is identified a described NFC equipment in the following manner, and with a described NFC devices communicating:
Described service terminal drives the described NFC equipment of identification by the inner NFC that arranges, and with a described NFC devices communicating;
Perhaps,
Described service terminal drives the described NFC equipment of identification by calling the described NFC that is arranged in the described NFC equipment, and with a described NFC devices communicating.
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| CN2012101055765A CN103378880A (en) | 2012-04-11 | 2012-04-11 | Service terminal, NFC equipment and near field communication method |
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