CN104915706A - External device of mobile terminal - Google Patents
External device of mobile terminal Download PDFInfo
- Publication number
- CN104915706A CN104915706A CN201410086382.4A CN201410086382A CN104915706A CN 104915706 A CN104915706 A CN 104915706A CN 201410086382 A CN201410086382 A CN 201410086382A CN 104915706 A CN104915706 A CN 104915706A
- Authority
- CN
- China
- Prior art keywords
- pin
- mobile terminal
- nfc
- sim card
- external device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Telephone Set Structure (AREA)
Abstract
The invention provides an external device of a mobile terminal. The external device is used for solving the problems that most of current mobile terminals do not have an NFC-SWP function and are high in replacement cost. The external device of the mobile terminal comprises an SIM card tray, an NFC chip and an NFC antenna, wherein the SIM card tray can bear an SIM card of the mobile terminal and can be inserted into an SIM card position of the mobile terminal; the SIM card tray leads a pin C1, a pin C5 and a pin C6 of the SIM card of the mobile terminal to the outer wall of the SIM card tray, and forms three internal contacts correspondingly; the pin C1, the pin C5 and the pin C6 are connected with the NFC chip through the corresponding internal contacts; and the NFC antenna is connected with the NFC chip. The external device provided by the invention can enable a mobile terminal without an NFC function to have the NFC-SWP function at an extremely low cost. The external device provided by the invention reduces the application cost for users and is more conducive to popularization of NFC near field payment for the operators.
Description
[technical field]
The present invention relates to wireless communication field, especially a kind of external device of mobile terminal.
[background technology]
NFC (Near Field Communication near-field communication) is a kind of emerging technology of this develop rapidly in several years, proposed by Sony, Philips and Nokia, it makes two electronic equipments directly can carry out the communication of short distance, be operated in 13.56MHz frequency range, operating distance several centimetres.NFC technique target is the Near Field Communication between electronic equipment, mainly realizes three class functions: contactless ic card analog functuion; Point-to-Point Data communication function; Card reader function.The appearance of NFC technique, the fusion greatly facilitating RFID (Radio Frequency Identification, radio frequency identification) technology and mobile communication technology is in progress, and causes many new application models.
On Dec 14th, 2012, Central Bank formally issues China's finance mobile payment series technique standard, specifies the standard of 13.56MHz as mobile payment.There has been specific aim in the operator of once hovering between 2.4GHz and 13.56MHz.The near field payment technology scheme making standard with 13.56MHz divides again three kinds: one to be packaged in mobile phone hardware by NFC module; Two is be incorporated on SD card; Three is NFC-SWP (Single Wire Protocol, single line is reached an agreement on) schemes, exactly security module is stored on Mobile phone card.Wherein, NFC-SWP scheme is the international standard of General Open.At the beginning of 2012 12 months, China Mobile just represents, plans to sell more than 1,000 ten thousand NFC mobile phone terminals in 2013, progressively mobile subscriber is given tacit consent to the SIM card provided with NFC function.After CHINAUNICOM and China Mobile, China Telecom announces, starts NFC-SWP pilot, and scale throws in NFC-SWP card, and starts terminal customization.
Such as, but current most of mobile terminal, mobile phone and SIM card thereof, Iphone4/4s/5 does not possess NFC function, but user group is very large again.If realize the function of NFC-SWP, just need to change mobile phone and SIM card, too huge for user's cost like this, be unfavorable for the popularization that NFC near field pays and development.
[summary of the invention]
The invention provides a kind of external device of mobile terminal, do not possess NFC-SWP function, the problem that replacement cost is higher in order to solve current most of mobile terminal.
The external device of mobile terminal of the present invention, comprising: the SIM card that can carry mobile terminal also can insert the SIM card Kato of described mobile terminal SIM card screens, NFC chip and NFC antenna; Wherein, the C1 pin of mobile terminal SIM card, C5 pin and C6 pin are led to the outer wall of described SIM card Kato by described SIM card Kato, and form corresponding 3 inner contact; Described C1 pin, C5 pin are connected with NFC chip by corresponding inner contact with C6 pin; Described C6 pin is high-voltage signal pin, and C1 pin is supply voltage pin, and C5 pin is grounding pin; Wherein, NFC antenna is connected with NFC chip.
Wherein, described NFC chip and NFC antenna are integrated on the shell that matches with described mobile terminal, described shell are also provided with 3 external contact be connected with NFC chip; Described C1 pin, C5 pin are connected with NFC chip by corresponding 3 inner contact with C6 pin, specifically: 3 described external contact are corresponding to 3 inner contact positions, after described mobile terminal and shell clamping, then described external contact is connected with corresponding inner contact respectively.
Wherein, described shell comprises: flexible PCB and medium shell; Wherein, the upper and lower surface of flexible PCB is provided with copper paving area, and 3 described external contact are connected with NFC chip with the printing copper cash of NFC antenna by described copper paving area; Described flexible PCB is compressed in the middle of described medium shell.
Wherein, the copper paving area of described flexible PCB is etched to described NFC antenna.
The external device of mobile terminal of the present invention, by carrying out small improvement to the Kato of mobile terminal, large-scale redevelopment is not carried out to the internal hardware of mobile terminal, do not affect outward appearance and the function of mobile terminal, do not need to change smart machine, only need extremely low cost that the mobile terminal without NFC function just can be made to have the function of NFC-SWP, application cost is reduced for user.For operator, be more conducive to the popularization that NFC near field pays.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of the embodiment of the present invention;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the present invention 1;
Fig. 3 is the apparatus structure schematic diagram of the embodiment of the present invention 2.
[embodiment]
Current mobile operator plays very important role in NFC promotes, according to the demand of mobile operator, NFC implementation needs to provide a kind of scheme RFID application or NFC application are associated together with mobile operator, also namely needs a kind of scheme that RFID application or NFC should be associated with SIM card.
Inventor finds after deliberation, and current SIM card C6 pinout is VPP, is the high-voltage signal of the inner nonvolatile memory programming of card.The nonvolatile memory that IC-card inside uses, based on EEPROM, also has and uses flash storage, and erasing and the write of this kind of storer all need higher program voltage, is usually defined at about 12V ~ 20V, C6 pin and introduces use as this high pressure.Along with the progress of semiconductor technology and chip design art, existing IC-card all adopts chip internal charged pump circuit, the programming high pressure of nonvolatile memory needs is pumped by VCC power supply, so for C6 pin, the voltage of VPP has no longer needed to be added by outside, and namely the function of VPP is out-of-date.To sum up, C6 pin is redefined use by inventor's research.Based on the single line connection scheme of C6 pin, connection interface comprises three lines: supply voltage VCC (C1), ground connection GND (C5), high-voltage signal SWP (C6), wherein SWP signal wire realizes full duplex communication based on voltage and load-modulate principle, SIM card can be realized like this under ISO7816 interface definition, support 7816 and SWP two interfaces simultaneously, and reserve the pin of expansion the 3rd high speed (USB) interface.Support that the SIM card of SWP must support ISO and SWP two protocol stacks simultaneously, need the COS of SIM to be the OS system of multitask, and these two parts need to manage independently, the RST signal at ISO interface can not have an impact to SWP part.
Based on above-mentioned consideration, shown in Figure 1, inventor thinks needs C1 (VCC) pin 121, C5 (GND) pin 122 of NFC chip 11 with SIM card 12 to be connected with C6 (SWP) pin 123.
Embodiment 1, in order to solve the pin connectivity problem of above-mentioned NFC chip and SIM card, in specific implementation, inventor considers and need improve the SIM card Kato of mobile terminal (as Iphone5), as shown in Figure 2, the external device of mobile terminal in the present embodiment, comprising: the SIM card 21 that can carry mobile terminal also can insert the SIM card Kato 22 of this mobile terminal SIM card screens, NFC chip 23 and NFC antenna 24; Wherein, the C1 pin 211 of mobile terminal SIM card 21, C5 pin 212 and C6 pin 213 are led to the outer wall of SIM card Kato 22 by SIM card Kato 22, and form corresponding 3 inner contact and be respectively 221,222,223, the i.e. corresponding inner contact 221 of C1 pin 211, the corresponding inner contact 223 of C5 pin 212 corresponding inner contact 222, C6 pin 213; C1 pin 211, C5 pin 212 are connected with NFC chip 23 by corresponding inner contact with C6 pin 213, and NFC antenna 24 is connected with NFC chip 23.
Embodiment 2, to be connected with the pin of SIM card for the ease of NFC chip, shown in Figure 3, the present embodiment is optimized on the basis of embodiment 1, comprising: the SIM card 31 that can carry mobile terminal also can insert the SIM card Kato 32 of this mobile terminal SIM card screens, NFC chip 33 and NFC antenna 34; Wherein, NFC chip 33 and NFC antenna 34 are integrated on the shell 35 that matches with mobile terminal, shell 35 are also provided with 3 external contact be connected with NFC chip 33, are respectively 351,352,353.The C1 pin 311 of mobile terminal SIM card 31, C5 pin 312 and C6 pin 313 are led to the outer wall of SIM card Kato 32 by SIM card Kato 32, and form corresponding 3 inner contact and be respectively 321,322,323, the i.e. corresponding inner contact 321 of C1 pin 311, the corresponding inner contact 323 of C5 pin 312 corresponding inner contact 322, C6 pin 313.Because shell 35 and mobile terminal match, be designed to 3 external contact in the present embodiment corresponding to 3 inner contact positions, when after mobile terminal and shell 5 clamping, external contact is connected with corresponding inner contact respectively, namely external contact 351 contacts with inner contact 321 and connects, external contact 352 contacts with inner contact 322 and connects, and external contact 353 contacts with inner contact 323 and connects.In concrete technology, shell 5 can comprise: flexible PCB 354 and medium shell 355.Wherein, the upper and lower surface of flexible PCB 354 is provided with copper paving area 356,3 described external contact and NFC antenna 34 are connected with NFC chip 33 by the printing copper cash of copper paving area 356 or FPC line, the copper paving area 356 of flexible PCB 354 can also be etched to NFC antenna 34, can strengthen signal intensity so again can saving components.Finally flexible PCB 354 is compressed in the middle of medium shell 355.Utilize the shell 35 (as mobile phone protecting case) of the present embodiment and improved SIM card Kato 32, the mobile terminal without NFC function can be made to realize the function of NFC-SWP technical scheme.
Here description of the invention and application are all illustrative and schematic, are not to want by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here completely possible, and for those those of ordinary skill in the art, the replacement of embodiment and the various parts of equivalence are all known.Those skilled in the art it is also clear that, when not departing from spirit of the present invention or essential characteristic, the present invention can in other forms, structure, layout, ratio, and realize with other assembly, material and parts, and when not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (4)
1. an external device for mobile terminal, is characterized in that, comprising: the SIM card that can carry mobile terminal also can insert the SIM card Kato of described mobile terminal SIM card screens, NFC chip and NFC antenna;
Wherein, the C1 pin of mobile terminal SIM card, C5 pin and C6 pin are led to the outer wall of described SIM card Kato by described SIM card Kato, and form corresponding 3 inner contact; Described C1 pin, C5 pin are connected with NFC chip by corresponding inner contact with C6 pin; Described C6 pin is high-voltage signal pin, and C1 pin is supply voltage pin, and C5 pin is grounding pin;
Wherein, NFC antenna is connected with NFC chip.
2. the external device of mobile terminal as claimed in claim 1, is characterized in that, described NFC chip and NFC antenna are integrated on the shell that matches with described mobile terminal, described shell are also provided with 3 external contact be connected with NFC chip;
Described C1 pin, C5 pin are connected with NFC chip by corresponding 3 inner contact with C6 pin, specifically: 3 described external contact are corresponding to 3 inner contact positions, after described mobile terminal and shell clamping, then described external contact is connected with corresponding inner contact respectively.
3. the external device of mobile terminal as claimed in claim 2, it is characterized in that, described shell comprises: flexible PCB and medium shell;
Wherein, the upper and lower surface of flexible PCB is provided with copper paving area, and 3 described external contact are connected with NFC chip with the printing copper cash of NFC antenna by described copper paving area;
Described flexible PCB is compressed in the middle of described medium shell.
4. the external device of mobile terminal as claimed in claim 3, is characterized in that, the copper paving area of described flexible PCB is etched to described NFC antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086382.4A CN104915706A (en) | 2014-03-10 | 2014-03-10 | External device of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086382.4A CN104915706A (en) | 2014-03-10 | 2014-03-10 | External device of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104915706A true CN104915706A (en) | 2015-09-16 |
Family
ID=54084755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410086382.4A Pending CN104915706A (en) | 2014-03-10 | 2014-03-10 | External device of mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104915706A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160117533A1 (en) * | 2014-10-28 | 2016-04-28 | Asustek Computer Inc. | Electronic device and back cover thereof |
| WO2018018437A1 (en) * | 2016-07-26 | 2018-02-01 | 华为技术有限公司 | Card support and mobile terminal |
| CN111273198A (en) * | 2020-02-26 | 2020-06-12 | 深圳市元征科技股份有限公司 | SIM (subscriber identity module) detection card and method for detecting instant disconnection of SIM card seat |
| CN112118004A (en) * | 2020-11-19 | 2020-12-22 | 四川科道芯国智能技术股份有限公司 | SWP interface circuit and terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937520A (en) * | 2010-09-03 | 2011-01-05 | 武汉天喻信息产业股份有限公司 | Telecom smart card for realizing near field communication function |
| CN202309800U (en) * | 2011-10-31 | 2012-07-04 | 纪成军 | External device for mobile phone |
| US8355670B2 (en) * | 2010-06-22 | 2013-01-15 | At&T Mobility Ii Llc | Near field communication adapters |
| CN202906997U (en) * | 2012-10-11 | 2013-04-24 | 动信科技股份有限公司 | Circuit structure |
| CN203423687U (en) * | 2013-09-02 | 2014-02-05 | 陈业军 | Device realizing near field communication function through USB interface |
| CN104580571A (en) * | 2013-10-25 | 2015-04-29 | 陈业军 | NFC-SWP technology-based mobile phone mobile payment device |
-
2014
- 2014-03-10 CN CN201410086382.4A patent/CN104915706A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8355670B2 (en) * | 2010-06-22 | 2013-01-15 | At&T Mobility Ii Llc | Near field communication adapters |
| CN101937520A (en) * | 2010-09-03 | 2011-01-05 | 武汉天喻信息产业股份有限公司 | Telecom smart card for realizing near field communication function |
| CN202309800U (en) * | 2011-10-31 | 2012-07-04 | 纪成军 | External device for mobile phone |
| CN202906997U (en) * | 2012-10-11 | 2013-04-24 | 动信科技股份有限公司 | Circuit structure |
| CN203423687U (en) * | 2013-09-02 | 2014-02-05 | 陈业军 | Device realizing near field communication function through USB interface |
| CN104580571A (en) * | 2013-10-25 | 2015-04-29 | 陈业军 | NFC-SWP technology-based mobile phone mobile payment device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160117533A1 (en) * | 2014-10-28 | 2016-04-28 | Asustek Computer Inc. | Electronic device and back cover thereof |
| WO2018018437A1 (en) * | 2016-07-26 | 2018-02-01 | 华为技术有限公司 | Card support and mobile terminal |
| CN109076113A (en) * | 2016-07-26 | 2018-12-21 | 华为技术有限公司 | A kind of Kato and mobile terminal |
| CN109076113B (en) * | 2016-07-26 | 2020-08-07 | 华为技术有限公司 | Card support and mobile terminal |
| CN111273198A (en) * | 2020-02-26 | 2020-06-12 | 深圳市元征科技股份有限公司 | SIM (subscriber identity module) detection card and method for detecting instant disconnection of SIM card seat |
| CN112118004A (en) * | 2020-11-19 | 2020-12-22 | 四川科道芯国智能技术股份有限公司 | SWP interface circuit and terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8260199B2 (en) | NFC module, in particular for mobile phone | |
| EP3174215A1 (en) | Double-frequency multi-protocol multifunctional near field communication integrated system and application method | |
| CN103347105B (en) | Mobile phone radio-frequency SIM card with SWP function in compatible mode | |
| EP2204759A2 (en) | Card reader and mobile payment terminal | |
| CN104915706A (en) | External device of mobile terminal | |
| CN101552834A (en) | Portable radio frequency read/write component for mobile phone | |
| CN205375487U (en) | Multi -function IC card | |
| CN102694582A (en) | Wireless data card and wireless data card communication method | |
| KR101583093B1 (en) | Method for supporting different types of UICC cards and Terminal therefor | |
| CN105512716A (en) | Multifunctional IC card | |
| CN209357068U (en) | NFC circuit and terminal device | |
| CN202351915U (en) | Mobile payment SD (Secure Digital) card based on SWP (Single Wire Protocol) | |
| CN201780600U (en) | Telecommunication smart card for realizing double-frequency non-contact communication | |
| CN203800968U (en) | External device of mobile terminal | |
| CN203414989U (en) | Intelligent storage card and system thereof | |
| CN204681378U (en) | There is the circuit of near field communication (NFC) function and comprise the human interface device of this circuit | |
| CN104517150B (en) | user identity module card with antenna | |
| CN102663475A (en) | SD card and RF signal amplification device based on double-interface smart card chip | |
| CN202504471U (en) | Mobile phone case with near field communication (NFC) function | |
| SG173289A1 (en) | Portable electronic device and method for controlling portable electronic device | |
| CN101594425A (en) | Portable terminal | |
| CN203423687U (en) | Device realizing near field communication function through USB interface | |
| CN212084197U (en) | Non-card-receiving payment module | |
| CN103973331A (en) | Integrated Circuit Film And Method Of Manufacturing The Same | |
| CN203968096U (en) | A kind of passive magnetic strength key device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |