WO2009021352A1 - Dispositif d'authentification de charge sans contact et son procédé - Google Patents
Dispositif d'authentification de charge sans contact et son procédé Download PDFInfo
- Publication number
- WO2009021352A1 WO2009021352A1 PCT/CN2007/002408 CN2007002408W WO2009021352A1 WO 2009021352 A1 WO2009021352 A1 WO 2009021352A1 CN 2007002408 W CN2007002408 W CN 2007002408W WO 2009021352 A1 WO2009021352 A1 WO 2009021352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic induction
- identity authentication
- power
- authentication device
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
Definitions
- the present invention refers to an identity authentication device and method thereof, and more particularly to a charging method for an identity authentication device having a built-in battery in a non-contact state. Background technique
- the current identity documents can only passively prove the identity of the user. Although advanced anti-counterfeiting technology can only prevent being forged or destroyed, it does not proactively prove the user's immediate function. .
- Effective instant identity authentication technology should be unable to be copied, modified and cracked.
- Currently commonly used methods include providing a set of randomly generated dynamic passwords for the user to confirm the identity.
- the user holds the identity authentication device of the built-in wireless RF component. Demonstrate identity, or scan the user's fingerprint or iris to confirm identity.
- the technique of charging a device is a technique in which the metal electrode of the charging device is brought into contact with the metal electrode of the device to be charged, and the battery is charged in a contact state, and the battery is charged in a non-contact state.
- electromagnetic induction there are two techniques for charging a charged device in a non-contact state: electromagnetic induction and radio frequency.
- the principle of electromagnetic induction is as follows: The induction coil in the charging device first generates an induced magnetic field and electromagnetic energy, and the induction coil on the charging device further receives the electromagnetic field, converts the electromagnetic energy into electrical energy and stores it in the battery of the device to be charged, and completes the charging.
- this technology has been applied to electric toothbrush charging, and it is also possible to charge mobile phones, personal digital assistants and the like in the future.
- Radio frequency technology transmits information by radio frequency. In theory, it can also pass the modulation and decoding technology to transmit power from one device to another through radio frequency, so as to achieve the purpose of charging. This technology is not seen in efficiency because it is too low. Practical application.
- the identity authentication device can identify and reduce the chance of being forged or destroyed in time, and prolong the service life of the identity authentication device. Reduce the cost of frequent replacement due to loss of power.
- the present invention provides an identity authentication device, comprising: a power source for transmitting and receiving a power; a control unit for controlling a signal; a shunt voltage dividing circuit, respectively, and the power source and the control The unit is electrically connected to control the transmission of the power; and an electromagnetic induction element is electrically connected to the shunt voltage dividing circuit for inducing generation and transmission of an electromagnetic induction signal, wherein the electromagnetic induction signal has an electromagnetic induction frequency, wherein When the identity authentication device and the charging device are in non-contact electromagnetic induction, the charging device charges the identity authentication device.
- the power source is a battery.
- the battery is a rechargeable battery, and preferably a lithium battery.
- the shunt voltage dividing circuit is further electrically connected to the power source through a protection circuit to protect the identity authentication device during charging.
- the electromagnetic authentication component is an electromagnetic induction coil and a wireless antenna One of the frequency components.
- the frequency range in which the electromagnetic induction frequency is applied includes one of a low frequency rate, a high frequency, an ultra high frequency, and a microwave.
- the present invention further provides an identity authentication device, comprising: a battery for transmitting and receiving a power; a control unit for controlling a signal; and a shunt voltage dividing circuit electrically connected to the battery and the control unit respectively To control the transmission of the power; an electromagnetic induction element electrically connected to the shunt voltage dividing circuit for inducing generation and transmission of an electromagnetic induction signal, the electromagnetic signal having an electromagnetic induction frequency; a screen, and the control unit Connected to display a message; and a keyboard electrically connected to the control unit, the keyboard having at least one button for inputting an instruction to the identity authentication device, wherein the identity authentication device is in non-contact with a charging device The charging device charges the identity authentication device during electromagnetic induction.
- the battery is a rechargeable battery, and preferably a lithium battery.
- the shunt voltage dividing circuit is further electrically connected to the battery through a protection circuit for protecting the identity authentication device during charging.
- the electromagnetic authentication component is one of an electromagnetic induction coil and a radio frequency component.
- the frequency range in which the electromagnetic induction frequency is applied includes one of a low frequency rate, a high frequency, an ultra high frequency, and a microwave.
- the screen is preferably a planar flexible display.
- the identity authentication device further includes an indicator light electrically connected to the control unit for displaying a power of the battery, wherein a light emitting diode is preferred.
- the present invention further provides a charging method for an identity authentication system, comprising an identity authentication device and a charging device, the identity authentication device comprising a first power source, a split voltage dividing circuit and a first electromagnetic sensing component, the charging device comprising a a second power source and a second electromagnetic induction element, wherein a first frequency generated by the first electromagnetic induction element is the same as a second frequency generated by the second electromagnetic induction element, the method comprising the following steps: (a) Coupling the first frequency and the second frequency; (b) converting a power of the second power source to an electromagnetic energy of the second electromagnetic induction element; (c) transmitting the The electromagnetic energy of the second electromagnetic induction element to the first electromagnetic induction element; (d) converting the electromagnetic energy of the first electromagnetic induction element to the power and transmitting to the shunt voltage dividing circuit; and (e) providing the electric power To the first power source.
- the identity authentication device comprising a first power source, a split voltage dividing circuit and a first electromagnetic sensing component
- the power provided by the shunt voltage dividing circuit includes one of a total power and a part of the power.
- the voltage value of the power supplied by the shunt voltage dividing circuit is equal to or higher than a rated voltage of the first power source.
- the one-time current value of the power supplied by the shunt voltage dividing circuit is equal to or smaller than a capacitance of the first power source.
- At least one of the identity authentication devices can be simultaneously placed in an electromagnetic induction magnetic field for charging.
- a minimum distance between the identity authentication device and the charging device is zero.
- a maximum distance between the identity authentication device and the charging device is the limit of the range of the electromagnetic induction magnetic field.
- FIG. 1 is a schematic diagram of an identity authentication apparatus according to a first embodiment of the present invention
- FIG. 2 is a schematic diagram of an identity authentication apparatus according to a second embodiment of the present invention
- FIG. 4 is a block diagram of a charging method of the identity authentication system provided by the present invention.
- FIG. 1 is a schematic diagram of an identity authentication apparatus according to a first embodiment of the present invention.
- the identity authentication device 10 includes a power source 101, a control unit 10 2 , a shunt voltage dividing circuit 103, an electromagnetic sensing element 104, and a protection line 105.
- the shunt voltage dividing circuit 103 is electrically connected to the power source 101 (which can pass through the protection line 105), the control unit 102, and the electromagnetic induction element 104, respectively. Connected.
- the identity authentication device 10 When the identity authentication device 10 loses power or power is insufficient, the user approaches the identity authentication device 10 to a charging device 20 to cause non-contact electromagnetic induction, and a power generated by the electromagnetic induction element 104 passes through the shunt voltage dividing circuit. 103, the power source 101 is partially charged (through the protection line 105), and the portion is transmitted to the control unit 102.
- the control unit 102 can determine the manner in which the power is sourced.
- the power supply 101 can be selected to have a small lithium battery with less memory effect and can be electrically connected to a protection circuit 105 for protecting the security of the identity authentication device 10 during charging.
- the electromagnetic induction component 104 is one of an electromagnetic induction coil and a radio frequency component, but the corresponding charging device 20 needs to use the same electromagnetic induction coil or radio frequency component as the electromagnetic induction component 104 to generate non-contact electromagnetic induction.
- the frequency range for non-contact electromagnetic induction includes low frequency (30 ⁇ 300 kHz), high frequency (3 ⁇ 30 MHz), ultra high frequency (300 MHz - 3 GHz) or microwave (above 3 GHz). one.
- the identity authentication device 30 includes a battery 301, a control unit 302, a shunt voltage dividing circuit 303, an electromagnetic sensing component 304, a screen 305, a keyboard 306, and a protection circuit 307, wherein the shunt voltage divider
- the circuit 303 is electrically connected to the battery 301 (via the protection line 307), the control unit 302 and the electromagnetic induction element 304, respectively, and the control unit 302 is electrically connected to the screen 305 and the keyboard 306, respectively.
- the identity authentication device 30 loses power or the power is insufficient, the user approaches the identity authentication device 30 to a charging device (not shown in FIG.
- the control unit 302 can determine the manner in which the power is sourced.
- the battery 301 is a rechargeable battery, and preferably a lithium battery.
- the use of a rechargeable battery can overcome the problem of requiring frequent replacement of the battery 301, reducing the chances and risks of damage to the authentication device 30 and reducing the cost of the device.
- the battery 301 is made to include, but is not limited to, a sheet or a rectangular parallelepiped, etc., in accordance with the appearance and internal configuration of the identity authentication device 30.
- the electromagnetic induction element 304 is one of an electromagnetic induction coil and a radio frequency component, but the corresponding charging device (not shown in FIG. 2) needs to use the same electromagnetic induction coil as the electromagnetic induction element 304 or Radio frequency components can produce non-contact electromagnetic induction.
- the frequency range applicable to non-contact electromagnetic induction includes one of low frequency, high frequency, ultra high frequency or microwave.
- the screen 305 is used to display the information generated by the control unit 302, and the user uses the displayed information for identity authentication and interpretation. Generally, the screen 305 is preferably a flat flexible display because of its small size and resistance to external force distortion.
- the keyboard 306 is electrically coupled to the control unit 302 for inputting an instruction to the identity authentication device 30.
- the keyboard 306 has at least one button.
- the shunt voltage dividing circuit 303 can be electrically connected to a protection circuit 307 for protecting the identity authentication device 30 from causing damage to the identity authentication device 30 when charging.
- the indicator light 308 is electrically connected to the control unit 302 for displaying the power and the state of charge of the battery 301.
- the light source of the indicator light 308 is usually a light-emitting diode because the light-emitting diode has the advantages of low power consumption, no mercury, and long life.
- the identity authentication device (10, 30) of the present invention is applicable to various identity authentication devices requiring power, including but not limited to handheld electronic devices, cards, tags, tags, paper books, and the like.
- FIG. 3 is a configuration diagram of an identity authentication device and a charging device provided by the present invention.
- the identity authentication device 40 includes a first power source 401, a split voltage dividing circuit 402, and a first electromagnetic sensing component 403.
- the charging device 50 includes a second power source 501 and a second electromagnetic sensing component 503.
- the first frequency generated by the first electromagnetic induction element 403 is the same as the second frequency generated by the second electromagnetic induction element 503.
- FIG. 4 is a block diagram of the charging method 60 of the identity authentication system provided by the present invention. Referring to the block diagrams of the configuration of the identity authentication device 40 and the charging device 50 of FIG. 3 and the charging method of the identity authentication system of FIG.
- step 601 when the charging device 50 charges the identity authentication device 40, the following steps are included: a) coupling the first frequency to the second frequency (step 601); (b) converting a power of the second power source 501 to an electromagnetic energy of the second electromagnetic induction element 503 (step 602); (c) transmitting the first The electromagnetic energy of the second electromagnetic induction element 503 to the first electromagnetic induction element 403 (step 603); (d) converting the electromagnetic energy of the first electromagnetic induction element 403 to the power and transmitting to the shunt voltage dividing circuit 402 ( Step 604); and (e) providing the power to the first power source 401 (step 605).
- the first and second frequencies of step (a) need to be the same to perform the charging action, and conversely, the charging action does not proceed.
- the electromagnetic energy from step (b) and step (c) is from the second electromagnetic induction
- the transmission of the W 200 element 503 to the first electromagnetic induction element 501 is by non-contact electromagnetic induction, but the minimum distance between the identity authentication device 40 and the charging device 50 is zero, and the maximum distance is the limit of the electromagnetic induction magnetic field range, exceeding the maximum distance. Poor induction or inability to charge.
- the power provided by the shunt voltage dividing circuit 402 includes one of a total power and a part of the power.
- the split voltage dividing circuit 402 provides all of the power to the first power source 401.
- the split voltage dividing circuit 402 provides partial power to the first power source 401 and provides partial power for use by the identity authentication device 40.
- the power supplied by the voltage dividing circuit 402 should be equal to or higher than the rated voltage of the first power source, and the current value per unit time should be equal to or less than the rated capacity of the first power source to ensure charging. Effective and safe.
- the charging method of the identity authentication device of the present invention can be applied to charge at least one identity authentication device 40 simultaneously within an electromagnetic induction magnetic field generated by electromagnetic induction with the charging device 50.
- This has the advantage that the user can perform the charging operation of the plurality of identity authentication devices 40 at one time, save the purchase cost of the charging device 50, the placement space, and the line configuration.
- the identity authentication device of the present invention by using the identity authentication device of the present invention to charge the identity authentication device having the built-in battery in a non-contact state, the power supply problem of the identity authentication device can be completely solved, and the identity authentication device can be used for a long time, Limited by the power shortage.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07785313A EP2187562A1 (en) | 2007-08-10 | 2007-08-10 | A non-contact state charging authentication device and a method thereof |
JP2010520396A JP2010536322A (ja) | 2007-08-10 | 2007-08-10 | 非接触状態で再充電可能な身分証明装置及びその方法 |
US11/914,390 US8072312B2 (en) | 2007-08-10 | 2007-08-10 | Contactlessly rechargeable identification device and method thereof |
CN2007800006097A CN101523799B (zh) | 2007-08-10 | 2007-08-10 | 以非接触状态进行充电的身份认证装置及其方法 |
KR1020107004553A KR20100037651A (ko) | 2007-08-10 | 2007-08-10 | 증명 장치를 충전하는 비접촉 상태 및 그의 방법 |
PCT/CN2007/002408 WO2009021352A1 (fr) | 2007-08-10 | 2007-08-10 | Dispositif d'authentification de charge sans contact et son procédé |
CA2696130A CA2696130A1 (en) | 2007-08-10 | 2007-08-10 | A non-contact state charging authentication device and a method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2007/002408 WO2009021352A1 (fr) | 2007-08-10 | 2007-08-10 | Dispositif d'authentification de charge sans contact et son procédé |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009021352A1 true WO2009021352A1 (fr) | 2009-02-19 |
Family
ID=40350334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2007/002408 WO2009021352A1 (fr) | 2007-08-10 | 2007-08-10 | Dispositif d'authentification de charge sans contact et son procédé |
Country Status (7)
Country | Link |
---|---|
US (1) | US8072312B2 (zh) |
EP (1) | EP2187562A1 (zh) |
JP (1) | JP2010536322A (zh) |
KR (1) | KR20100037651A (zh) |
CN (1) | CN101523799B (zh) |
CA (1) | CA2696130A1 (zh) |
WO (1) | WO2009021352A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8581707B2 (en) * | 2009-12-16 | 2013-11-12 | Pyramid Meriden Inc. | Methods and apparatus for identifying and categorizing distributed devices |
KR102187437B1 (ko) * | 2014-03-11 | 2020-12-08 | 엘지이노텍 주식회사 | 무선전력 전송 장치를 구비한 무선전력전송 시스템 |
CN108599386A (zh) * | 2018-04-17 | 2018-09-28 | 深圳市中亨科技有限公司 | 一种无线充电稳流电路、方法及无线充电设备 |
CN109481061B (zh) * | 2018-12-28 | 2020-10-30 | 阜阳市顺亚智能设备有限公司 | 智能化超声波牙刷 |
CN109742834B (zh) * | 2019-02-26 | 2022-06-10 | 天津大学 | 一种电感分离式一体化车载充电拓扑及电感参数辨识方法 |
Citations (5)
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JPH11282981A (ja) * | 1998-03-30 | 1999-10-15 | Seiko Epson Corp | 個人認証システムの情報装置及び入力装置 |
JP2000090221A (ja) * | 1998-09-09 | 2000-03-31 | Hitachi Maxell Ltd | 非接触型icカード |
CN2666013Y (zh) * | 2003-10-31 | 2004-12-22 | 宏碁股份有限公司 | 非接触感应式的手持装置充电装置 |
JP2005202710A (ja) * | 2004-01-16 | 2005-07-28 | Dainippon Printing Co Ltd | 液晶ディスプレイ付きuimリーダライタ |
CN2791758Y (zh) * | 2005-04-20 | 2006-06-28 | 蔡冠群 | 具有密码键盘的身份验证器 |
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JPH08138018A (ja) * | 1994-11-10 | 1996-05-31 | Rikagaku Kenkyusho | データ・キャリア・システム |
US5963133A (en) * | 1997-07-18 | 1999-10-05 | Monjo; Nicolas | Electronic tag |
JPH11345292A (ja) * | 1998-06-02 | 1999-12-14 | Matsushita Electric Ind Co Ltd | 非接触icカード |
US7061381B2 (en) * | 2002-04-05 | 2006-06-13 | Beezerbug Incorporated | Ultrasonic transmitter and receiver systems and products using the same |
US6897763B2 (en) * | 2003-08-07 | 2005-05-24 | Eastman Kodak Company | Retail signage management system |
TWM246884U (en) | 2003-10-23 | 2004-10-11 | Acer Inc | Contactless sensing type portable device charger |
KR100462354B1 (ko) * | 2004-02-23 | 2004-12-17 | 주식회사 진두네트워크 | 모바일 충전관리시스템 및 그 방법 |
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US8111143B2 (en) * | 2005-04-29 | 2012-02-07 | Hewlett-Packard Development Company, L.P. | Assembly for monitoring an environment |
US20060255943A1 (en) * | 2005-05-16 | 2006-11-16 | Psc Scanning, Inc. | Induction charging machine, methods, and system for a data reader |
EP1908032A4 (en) * | 2005-07-19 | 2011-02-02 | Prec Dynamics Corp | SEMI-ACTIVE RADIO FREQUENCY IDENTIFICATION LABEL AND ASSOCIATED METHODS |
JP4867299B2 (ja) * | 2005-11-09 | 2012-02-01 | 大日本印刷株式会社 | Icカード及び電力供給制御方法 |
US7696751B2 (en) * | 2005-12-08 | 2010-04-13 | Koninklijke Philips Electronics N. V. | Method and apparatus for ferrous object and/or magnetic field detection for MRI safety |
-
2007
- 2007-08-10 US US11/914,390 patent/US8072312B2/en active Active
- 2007-08-10 JP JP2010520396A patent/JP2010536322A/ja active Pending
- 2007-08-10 CA CA2696130A patent/CA2696130A1/en not_active Abandoned
- 2007-08-10 CN CN2007800006097A patent/CN101523799B/zh not_active Expired - Fee Related
- 2007-08-10 KR KR1020107004553A patent/KR20100037651A/ko not_active Application Discontinuation
- 2007-08-10 EP EP07785313A patent/EP2187562A1/en not_active Withdrawn
- 2007-08-10 WO PCT/CN2007/002408 patent/WO2009021352A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11282981A (ja) * | 1998-03-30 | 1999-10-15 | Seiko Epson Corp | 個人認証システムの情報装置及び入力装置 |
JP2000090221A (ja) * | 1998-09-09 | 2000-03-31 | Hitachi Maxell Ltd | 非接触型icカード |
CN2666013Y (zh) * | 2003-10-31 | 2004-12-22 | 宏碁股份有限公司 | 非接触感应式的手持装置充电装置 |
JP2005202710A (ja) * | 2004-01-16 | 2005-07-28 | Dainippon Printing Co Ltd | 液晶ディスプレイ付きuimリーダライタ |
CN2791758Y (zh) * | 2005-04-20 | 2006-06-28 | 蔡冠群 | 具有密码键盘的身份验证器 |
Also Published As
Publication number | Publication date |
---|---|
KR20100037651A (ko) | 2010-04-09 |
JP2010536322A (ja) | 2010-11-25 |
CN101523799B (zh) | 2012-07-11 |
EP2187562A1 (en) | 2010-05-19 |
US20100134259A1 (en) | 2010-06-03 |
CA2696130A1 (en) | 2009-02-19 |
US8072312B2 (en) | 2011-12-06 |
CN101523799A (zh) | 2009-09-02 |
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