CN101329399B - System and method for implementing reliable short-range communication by detector array - Google Patents
System and method for implementing reliable short-range communication by detector array Download PDFInfo
- Publication number
- CN101329399B CN101329399B CN2008101426237A CN200810142623A CN101329399B CN 101329399 B CN101329399 B CN 101329399B CN 2008101426237 A CN2008101426237 A CN 2008101426237A CN 200810142623 A CN200810142623 A CN 200810142623A CN 101329399 B CN101329399 B CN 101329399B
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- detector
- portable terminal
- communication
- detector array
- 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.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A system (10) for realizing the reliable near field communication by utilizing a detector array is characterized in that the system (10) comprises a radio frequency mobile terminal (12) containing a radio frequency SIM card (11) and a radio frequency control terminal (13); a method comprises the following steps: a communication state database of each type of the radio frequency mobile terminal (12) is established; the communication between the radio frequency mobile terminal (12) to be tested and the radio frequency control terminal (13) is carried out, the radio frequency mobile terminal (12) carries out the communication with a plurality of groups of detectors (131) of the radio frequency control terminal (13) at a certain testing distance; the actual test results and the situations recorded by the communication state database are compared, therefore, the approximate range of the communication distance between the radio frequency mobile terminal (12) and the radio frequency control terminal (13) is judged. The method and the proposal of the invention can allow the data communication distance between a radio frequency communication terminal and a radio frequency communication device to be reliably controlled in the near field range, thereby ensuring the transaction safety and fundamentally ensuring the reliability of the communication.
Description
Technical field
The present invention relates to the record carrier that uses together with machine, particularly have the record carrier of semiconductor circuit components, relate in particular to a kind of system and method for controlling mobile terminal radio frequency communication distance.
Background technology
Radio communication terminal (hereinafter to be referred as " mobile phone ") is popularized, make it possess the short-range communication function by transformation, demand with functions such as realization mobile-phone payments is more and more stronger, occurred on the subscriber identification module SIM card, increasing radio-frequency enabled (becoming radio-frequency SIM) at present or on cell phone mainboard, increased the method that proximity communication module is realized the mobile phone short-range communication, the appearance of this method make mobile phone become one can supplement with money, consume, the supper-intelligent terminal of transaction and authentication, greatly satisfy the active demand in market.
Wherein, simple based on the mobile phone short-range communication solution of radio-frequency SIM with it, need not to change advantage such as mobile phone and paid close attention to widely, in this scheme, radio-frequency SIM adopts UHF or VHF technology to make radiofrequency signal to transmit from mobile phone, thereby realizes that not transforming mobile phone just can make that mobile phone possesses the short-range communication function.But, because different mobile phone shielding effects have a long way to go, the mobile phone that has is because bad its radiofrequency signal intensity in transmission of shield effectiveness is big, its communication distance even can reach about 1 meter, and the mobile phone that has is good especially because of shield effectiveness, and radiofrequency signal can not transmit, and causes normally transceive data, can not finish transaction, to want to accomplish accurately to control the distance that radiofrequency signal covers very difficult in the face of so many mobile phone kind.
Many application in the real life, especially public transport is swiped the card, coverage scope control for transaction has proposed strict requirement, long distance (more than 10CM) can be brought very big potential safety hazard, therefore, mobile phone also must effectively be controlled the coverage scope of its transaction when increasing the short-range communication function.
Have now and control at the distance of radio communication, make its technology that is no more than setting have only passive induction technology, non-contact card technical manual as ISO14443 agreement regulation, the perhaps RFID technical manual of ISO18000 regulation, the characteristics of these technology are that the card side is passive, can only obtain energy from card reader side coupling by the mode of induction and come work, thus realize with card reader between communicate by letter.And what adopt based on the mobile phone short-range communication of radio-frequency SIM is active mode, and what use basically is uhf band, this just causes it can't use passive techniques to control communication distance, because the uhf band radiofrequency signal possesses very strong penetration capacity, it is more outstanding apart from control problem.
The method of above-mentioned prior art control mobile terminal radio frequency communication distance has the following disadvantages:
1, based on the employing of the mobile phone short-range communication of radio-frequency SIM be active mode, and what use basically is uhf band, can't use passive techniques to control its communication distance;
2, the method that adopts methods such as adjusting mobile phone radio frequency signal emissive porwer and card reader receiving sensitivity to control communication distance is subjected to influence of various factors such as standing wave, signal reflex, is difficult to realize reliable short-range communication.
At this problem, prior art adopts methods such as adjusting mobile phone radio frequency signal emissive porwer and card reader receiving sensitivity to control communication distance, but the method is because influence of various factors such as standing wave, signal reflex are difficult to realize reliable short-range communication.The present invention proposes a kind of simple, low cost solution, and this scheme can be so that the data communication of radio communication terminal and radio frequency communication devices distance be controlled in the distance range of setting reliably, thereby has guaranteed the safety of transaction; That can also fundamentally guarantee to communicate by letter is reliable.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of system and method for controlling mobile terminal radio frequency communication distance.
The present invention proposes a kind of simple, low cost solution, and this scheme can be so that the data communication of radio communication terminal and radio frequency communication devices distance be controlled in the distance range of setting reliably, thereby has guaranteed the safety of transaction; That can also fundamentally guarantee to communicate by letter is reliable.
The invention provides a kind of system that utilizes detector array to realize reliable short-range communication, comprise the radio frequency portable terminal and the radio frequency control terminal that include radio-frequency SIM card;
Described radio frequency control terminal detects radio frequency communications of Mobile Terminals state by detector array, and testing result is analyzed, thereby judges radio frequency communications of Mobile Terminals distance.
Described radio frequency control terminal comprises card reader.
Detector array comprises antenna or the coupled structure with different gains and radiation characteristic, assists by the problem of adjusting detector and realizes different receiving gains.
Described detector array comprises one group of beacon detector, one group of minimum scale detector and at least one group of scale detector, every group of detector comprises a detector at least, each detector has corresponding amplifier and attenuator, and the parameter value of adjusting amplifier and attenuator can reach the purpose of the enlargement factor that increases detector array.
The parameter value of adjusting amplifier and attenuator with detector array wherein the enlargement factor of one group of detector transfer to a higher value A1, as the beacon detector, be used at first communicating with the radio frequency portable terminal;
The parameter value of adjusting amplifier and attenuator is detector array enlargement factor to the smaller value A2 of another group detector wherein, as the minimum scale detector, make the radio frequency portable terminal very near the time could communicate by letter with it;
The parameter value of adjusting amplifier and attenuator transfers to unique corresponding numerical value between between A1 and A2 with the emissive power gain of every group of detector in all the other each groups of detector array and receiving sensitivity, as the scale detector, be used to judge radio frequency portable terminal distance range roughly.
Described beacon detector and scale detector can be combined into one group.
The enlargement factor of described beacon detector, minimum scale detector and scale detector can be determined according to test figure or experience, can realize by the parameter value of adjusting amplifier and attenuator.
The present invention solve the technical problem can be by realizing by the following technical solutions: a kind of method of utilizing detector array to realize reliable short-range communication is provided, realize the system of reliable short-range communication based on utilizing detector array, described system comprises radio frequency portable terminal and the radio frequency control terminal that includes radio-frequency SIM card, comprises step:
A. set up its communications status database by test for each type radio frequency portable terminal, described database comprises whether respectively organize detector can communicate and each detector enlargement factor on this distance with described radio frequency portable terminal on each test distance;
B. with in moving terminal of described communications status database write incident frequency displacement or the radio-frequency SIM card, as radio frequency portable terminal self communications status database;
C. radio frequency portable terminal to be tested at first communicates by beacon detector and radio frequency control terminal, and the communications status database that will store within it informs the radio frequency control terminal, and the radio frequency control terminal will be adjusted enlargement factor according to the parameter value of respectively organizing detectors in the database;
D. the radio frequency portable terminal communicates at the detector of respectively organizing of certain measuring distance and radio frequency control terminal, and test result is noted;
E. the test result of reality and the situation of communications status data-base recording are compared, and then judge the approximate range of the communication distance of radio frequency portable terminal and radio frequency control terminal.
The described test distance of steps A is the communication distance between radio frequency portable terminal and the radio frequency control terminal, can freely select according to actual conditions.
Described detector array also comprises spacing detector, can not communicate with the radio frequency control terminal when certain target range in order to guarantee the radio frequency portable terminal, to guarantee the safety of communication distance.
Compare with prior art, beneficial effect of the present invention is:
1, scheme of the present invention is simple, cost is low;
2, scheme of the present invention can guarantee the safety of transaction so that the data communication of radio communication terminal and radio frequency communication devices distance is controlled in the near field range reliably, and that can also fundamentally guarantee to communicate by letter is reliable.
Description of drawings
Fig. 1 is that system of the present invention forms synoptic diagram;
Fig. 2 is the present invention's radio frequency control terminal and detector array composition figure;
Fig. 3 is the radio frequency communication of mobile terminal slip condition database of the inventive method embodiment one;
Fig. 4 is that the inventive method is apart from decision flow chart.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
The present invention's the detector array that utilizes is realized the system 10 of reliable short-range communication, as shown in Figure 1, comprises the radio frequency portable terminal 12 and the radio frequency control terminal 13 that include radio-frequency SIM card 11;
Described radio frequency control terminal 13 passes through the communications status that detector array 131 detects radio frequency portable terminals 12, and testing result is analyzed, thereby judges the communication distance of radio frequency portable terminal 12.
Described radio frequency portable terminal 12 comprises the portable terminal that contains radio-frequency SIM card 11; Described radio frequency control terminal 13 comprises card reader.
As shown in Figure 2, detector array 131 comprises antenna or the coupled structure with different gains and radiation characteristic, assists the different receiving gain of realization by adjusting position of detector.
As shown in Figure 2, described detector array 131 comprises one group of beacon detector 1311, one group of minimum scale detector 1313 and at least one group of scale detector 1312, every group of detector comprises one detector at least, each detector has corresponding amplifier and attenuator, and the parameter value of adjusting amplifier and attenuator can reach the purpose of the enlargement factor that increases detector array 131.
As shown in Figure 2, the preferred embodiment of the invention adopts one group of beacon detector 1311, one group of minimum scale detector 1313 and three groups of scale detectors 1312, can be by adjusting emissive power gain and the receiving sensitivity that corresponding amplifier and attenuator be adjusted them.
Adjust the parameter value of amplifier and attenuator, with detector array 131 wherein the enlargement factor of one group of detector transfer to a higher value A1, as beacon detector 1311, be used at first communicating with radio frequency portable terminal 12;
Adjust the parameter value of amplifier and attenuator again, with detector array 131 wherein another the group detector enlargement factor transfer to a smaller value A2, as minimum scale detector 1313, make radio frequency portable terminal 12 very near the time could communicate by letter with it;
Again adjust the parameter value of amplifier and attenuator thereafter, the enlargement factor of every group of detector in all the other each groups of detector array 131 is transferred to unique corresponding numerical value between between A1 and A2, as scale detector 1312, be used to judge radio frequency portable terminal 12 distance range roughly.
As shown in Figure 2, the enlargement factor with three groups scale detector 1312 is adjusted into 0.3 times, 0.4 times and 0.5 times respectively; The enlargement factor of minimum scale detector 1313 is adjusted to 0.2 times; Beacon detector 1311 enlargement factors are adjusted to 1 times, and the emissive power of scale detector is big more, can be just far away more with the communication distance of radio frequency portable terminal 12.
Described beacon detector 1311 and scale detector 1312 can be combined into one group.
The enlargement factor of described beacon detector 1311, minimum scale detector 1313 and scale detector 1312 can be determined according to test figure or experience, can realize by the parameter value of whole amplifier and attenuator.
The present invention solve the technical problem can be by realizing by the following technical solutions: a kind of method of utilizing detector array to realize reliable short-range communication is provided, realize the system 10 of reliable short-range communication based on utilizing detector array, described system comprises radio frequency portable terminal 12 and the radio frequency control terminal 13 that includes radio-frequency SIM card 11, as shown in Figure 4, comprise step:
A. set up its communications status database by test for each type radio frequency portable terminal 12, described database comprises whether respectively organize detector (131) can communicate with described radio frequency portable terminal 12 on each test distance and the enlargement factor of each detector on this distance;
B. described communications status database is write in described radio frequency portable terminal 12 or the radio-frequency SIM card 11, as this radio frequency portable terminal 12 self communications status database;
C. shown in Fig. 4 step 401, radio frequency portable terminal 12 to be tested at first communicates by beacon detector 1311 and radio frequency control terminal 13, shown in step 402, and the communications status database that will store is within it informed radio frequency control terminal 13, radio frequency control terminal 13 will be adjusted the parameter value of its amplifier and attenuator, this procedure parameter step 403 according to the parameter value of respectively organizing detectors in the database;
D. shown in step 404, radio frequency portable terminal 12 communicates at the detector 131 of respectively organizing of certain measuring distance and radio frequency control terminal 13, and test result is noted, and whether with regard to all detector is finished test and judged, shown in step 405;
E. shown in step 406, the test result of reality and the situation of communications status data-base recording are compared,
And then the approximate range of the communication distance of judgement radio frequency portable terminal 12 and radio frequency control terminal 13.
When carrying out the described step of A, with the portable terminal of each type respectively at each test distance, as shown in Figure 2, present embodiment has been tested radio frequency portable terminal 12 respectively in distance radio frequency control terminal 13 each detector's status information during for 0CM, 2CM, 5CM, 10CM, 15CM, 20CM, 30CM and 50CM, each detector enlargement factor that this status information comprises whether can communicating with radio frequency portable terminal 12, this distance is last.
Radio frequency control terminal 13 is after each radio frequency portable terminal 12 is set up the status information storehouse of getting well them, they the status information storehouse are being write corresponding radio frequency portable terminal 12 simultaneously, so that can send to radio frequency control terminal 13 in advance with this information bank when setting up communication.
Among the step C, when radio frequency portable terminal 12 to be tested is placed on certain distance and communicates with radio frequency control terminal 13 with certain distance, the slip condition database that radio frequency portable terminal 13 has been set up self sends to radio frequency control terminal 13, radio frequency control terminal 13 is after receiving the status information storehouse that radio frequency portable terminal 12 sends, just adjust the enlargement factor of detector, shown in Fig. 4 step 404 and 405, whether test it again can communicate with radio frequency portable terminal 12, shown in Fig. 4 step 406, after finishing, all detector tests compare with the communications status database of receiving again, if the record result is a 5CM scale detector, 2CM scale detector and minimum scale detector can be communicated by letter, look into so the communications status database table as can be known at present the approximate distance of mobile radio communication terminal be 5CM.
The described test distance of steps A is the communication distance between radio frequency portable terminal 12 and the radio frequency control terminal 13, can freely select according to actual conditions.
Described detector array 131 also comprises spacing detector, can not communicate with radio frequency control terminal 13 when certain target range in order to guarantee radio frequency portable terminal 12, to guarantee the safety of communication distance.
Above-mentioned implementation procedure is a preferential implementation procedure of the present invention, and common variation and replacement that those skilled in the art carries out on basis of the present invention are included within protection scope of the present invention.
Claims (9)
1. a system (10) that utilizes detector array to realize reliable short-range communication is characterized in that, comprises the radio frequency portable terminal (12) and the radio frequency control terminal (13) that include radio-frequency SIM card (11);
Described radio frequency control terminal (13) passes through the communications status that detector array (131) detects radio frequency portable terminal (12), and testing result is analyzed, thereby judges the communication distance of radio frequency portable terminal (12).
2. the system that utilizes detector array to realize reliable short-range communication as claimed in claim 1 is characterized in that:
Described radio frequency control terminal (13) comprises card reader.
3. the system that utilizes detector array to realize reliable short-range communication as claimed in claim 1 is characterized in that:
Detector array (131) comprises antenna or the coupled structure with different gains and radiation characteristic, assists the different receiving gain of realization by adjusting position of detector.
4. the system that utilizes detector array to realize reliable short-range communication as claimed in claim 1 is characterized in that:
Described detector array (131) comprises one group of beacon detector (1311), one group of minimum scale detector (1313) and at least one group of scale detector (1312), every group of detector comprises a detector at least, each detector has corresponding amplifier and attenuator, and the parameter value of adjusting amplifier and attenuator can reach the purpose of the enlargement factor that increases detector array (131).
5. the system that utilizes detector array to realize reliable short-range communication as claimed in claim 4 is characterized in that:
Described beacon detector (1311) and scale detector (1312) can be combined into one group.
6. the system that utilizes detector array to realize reliable short-range communication as claimed in claim 4 is characterized in that:
The enlargement factor of described beacon detector (1311), minimum scale detector (1313) and scale detector (1312) can be determined according to test figure or experience, can realize by the parameter value of adjusting amplifier and attenuator.
7. method of utilizing detector array to realize reliable short-range communication, realize the system (10) of reliable short-range communication based on utilizing detector array, described system comprises radio frequency portable terminal (12) and the radio frequency control terminal (13) that includes radio-frequency SIM card (11), it is characterized in that, comprise step:
A. set up its communications status database by test for each type radio frequency portable terminal (12), described database comprises whether respectively organize detector (131) can communicate with radio frequency portable terminal (12) on each test distance and the enlargement factor of each detector on this distance;
B. described communications status database is write in described radio frequency portable terminal (12) or the radio-frequency SIM card (11), as this radio frequency portable terminal (12) self communications status database;
C. radio frequency portable terminal to be tested (12) at first communicates by beacon detector (1311) and radio frequency control terminal (13), and the communications status database that will store within it informs radio frequency control terminal (13), and radio frequency control terminal (13) will be adjusted the parameter value of its amplifier and attenuator according to the parameter value of respectively organizing detectors in the database;
D. radio frequency portable terminal (12) communicates at the detector (131) of respectively organizing of certain measuring distance and radio frequency control terminal (13), and test result is noted;
E. the test result of reality and the situation of communications status data-base recording are compared, and then judge the approximate range of the communication distance of radio frequency portable terminal (12) and radio frequency control terminal (13).
8. the method for utilizing detector array to realize reliable short-range communication as claimed in claim 7 is characterized in that:
The described test distance of steps A is the communication distance between radio frequency portable terminal (12) and the radio frequency control terminal (13), can freely select according to actual conditions.
9. the method for utilizing detector array to realize reliable short-range communication as claimed in claim 7 is characterized in that:
Described detector array (131) also comprises spacing detector, can not communicate with radio frequency control terminal (13) when certain target range in order to guarantee radio frequency portable terminal (12), to guarantee the safety of communication distance.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101426237A CN101329399B (en) | 2008-07-29 | 2008-07-29 | System and method for implementing reliable short-range communication by detector array |
| PCT/CN2008/001748 WO2010012129A1 (en) | 2008-07-29 | 2008-10-17 | Reliable near field communication system and method using probe array |
| US12/949,453 US8929805B2 (en) | 2007-10-30 | 2010-11-18 | System, method, and device for radio frequency communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101426237A CN101329399B (en) | 2008-07-29 | 2008-07-29 | System and method for implementing reliable short-range communication by detector array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329399A CN101329399A (en) | 2008-12-24 |
| CN101329399B true CN101329399B (en) | 2011-07-13 |
Family
ID=40205300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101426237A Expired - Fee Related CN101329399B (en) | 2007-10-30 | 2008-07-29 | System and method for implementing reliable short-range communication by detector array |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101329399B (en) |
| WO (1) | WO2010012129A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335956B (en) * | 2008-08-05 | 2011-10-05 | 国民技术股份有限公司 | System and method for communication distance determination using BER statistical data |
| CN101996301B (en) * | 2009-08-24 | 2012-10-03 | 国民技术股份有限公司 | Communication distance control method and radio frequency card reading device |
| CN102095423A (en) * | 2009-12-09 | 2011-06-15 | 广州盛华信息技术有限公司 | Navigation aid system |
| CN102215071B (en) * | 2010-04-06 | 2014-03-05 | 国民技术股份有限公司 | System for calibrating radio frequency subscriber identity module (SIM) card |
| CN101944959A (en) * | 2010-07-01 | 2011-01-12 | 北京泛在电子标签技术有限公司 | Wireless short distance communication method and system based on distance control |
| US8068011B1 (en) | 2010-08-27 | 2011-11-29 | Q Street, LLC | System and method for interactive user-directed interfacing between handheld devices and RFID media |
| FR2970617B1 (en) * | 2011-01-14 | 2013-01-25 | St Microelectronics Rousset | PROTECTION OF A SAFETY ELEMENT COUPLED TO AN NFC CIRCUIT |
| CN103090833B (en) * | 2011-10-31 | 2016-12-28 | 国民技术股份有限公司 | Card Reader distance measurement system based on RFID SIM, method |
| US10055738B2 (en) * | 2016-11-04 | 2018-08-21 | BBPOS Limited | System and methods to prevent unauthorized usage of card readers |
| US11234698B2 (en) | 2019-12-19 | 2022-02-01 | Cilag Gmbh International | Stapling system comprising a clamp lockout and a firing lockout |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158308A2 (en) * | 2000-05-18 | 2001-11-28 | Sony Corporation | Method and device for using array antenna to estimate location of source in near field |
| CN101159029A (en) * | 2007-10-30 | 2008-04-09 | 深圳市中兴集成电路设计有限责任公司 | Very high-frequency radio frequency IC card device |
| CN101164356A (en) * | 2005-02-15 | 2008-04-16 | 沃达方集团有限公司 | Improving security of wireless communication |
| CN101228532A (en) * | 2005-07-25 | 2008-07-23 | 诺基亚公司 | Equipment and method for operating multifunctional near-field communication equipment supporting a plurality of data formats |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8095147B2 (en) * | 2006-04-28 | 2012-01-10 | Sony Ericsson Mobile Communications Ab | Multi-device location monitoring system |
-
2008
- 2008-07-29 CN CN2008101426237A patent/CN101329399B/en not_active Expired - Fee Related
- 2008-10-17 WO PCT/CN2008/001748 patent/WO2010012129A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158308A2 (en) * | 2000-05-18 | 2001-11-28 | Sony Corporation | Method and device for using array antenna to estimate location of source in near field |
| CN101164356A (en) * | 2005-02-15 | 2008-04-16 | 沃达方集团有限公司 | Improving security of wireless communication |
| CN101228532A (en) * | 2005-07-25 | 2008-07-23 | 诺基亚公司 | Equipment and method for operating multifunctional near-field communication equipment supporting a plurality of data formats |
| CN101159029A (en) * | 2007-10-30 | 2008-04-09 | 深圳市中兴集成电路设计有限责任公司 | Very high-frequency radio frequency IC card device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010012129A1 (en) | 2010-02-04 |
| CN101329399A (en) | 2008-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101329399B (en) | System and method for implementing reliable short-range communication by detector array | |
| CN101335956B (en) | System and method for communication distance determination using BER statistical data | |
| CN101334470B (en) | System and method for controlling mobile terminal radio frequency communication distance | |
| US9361491B2 (en) | Antenna interface for radio frequency identification circuit | |
| CN101887617B (en) | Method and system for establishing data channel of mobile payment | |
| CN102375998B (en) | Mobile terminal, information processing method and computer program | |
| CN102622688B (en) | Based on the near-field payment system of anti-shielding general antenna paster | |
| US8929805B2 (en) | System, method, and device for radio frequency communication | |
| US9098734B2 (en) | System and method for the presence recognition of a second portable data carrier by a first portable data carrier | |
| CN103340009A (en) | Multi-mode communications system for a mobile phone | |
| CN105939166A (en) | Near field communications (NFC) modulation feedback apparatus for tuned antenna configurations | |
| CN103347105B (en) | Mobile phone radio-frequency SIM card with SWP function in compatible mode | |
| CN201698449U (en) | Card reader and radio-frequency data communication system | |
| CN203250329U (en) | Smart subscriber identity module card and card reader thereof | |
| CN205946318U (en) | Circuit board and electronic equipment with NFC antenna and bluetooth antenna | |
| Kolev | Designing a NFC system | |
| CN202632359U (en) | Near-field payment system based on anti-shield universal antenna patch | |
| CN102567751B (en) | A kind of close distance radio frequency communication system and method | |
| CN101996303B (en) | Method and device for controlling communication distance in radio frequency SIM (Subscriber Identity Module) card communication system by applying magnetic induction | |
| CN112532551A (en) | Clock calibration method of communication device and communication device | |
| CN104794521B (en) | A kind of NFC of Non-contact radio-frequency communication band distance controlling blocks entirely | |
| CN102065171B (en) | Method and device for controlling communication distance of radio-frequency SIM card by using ultrasonic ranging | |
| CN102034130A (en) | Radio frequency mobile communication terminal communication card and mobile communication terminal | |
| TWI632512B (en) | Anti-collision method between different frequency cards and dual frequency card reader | |
| CN101719943A (en) | Separate type mobile telephone card paste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 |