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1. 发明申请

US20140349608A1 SECURE RF COMMUNICATION METHOD, TERMINAL AND SYSTEM 有权
标题翻译：安全RF通信方法，终端和系统
公开(公告)号：US20140349608A1
公开(公告)日：2014-11-27
申请号：US14235046
申请日：2012-08-28
申请人： Meixiang Li
发明人： Meixiang Li
IPC分类号： H04W12/04
CPC分类号： H04W12/04 , H04B5/0031 , H04B5/0075 , H04L9/0827 , H04L9/3215 , H04L63/18 , H04L2209/80 , H04W12/02 , H04W12/12
摘要： A method, terminal and secure RF communication system are provided. The method for radio frequency secure communication of the invention comprises: generating magnetic channel data, and transmitting the magnetic channel data via a magnetic channel; establishing a radio frequency link with a peer device which feeds back a response information of the magnetic channel data; generating first radio frequency data, encrypting the first radio frequency data using the magnetic channel data, and transmitting the encrypted first radio frequency data to the peer device via the radio frequency link; and/or receiving encrypted second radio frequency data transmitted by the peer device via the radio frequency link, and decrypting the encrypted second radio frequency data using the magnetic channel data. By the above technical solution, the invention avoids the risk that a preset key is intercepted or decrypted, and enhances the security of the radio frequency link data exchanging process.
摘要翻译：提供了一种方法，终端和安全的RF通信系统。本发明的射频安全通信方法包括：产生磁通道数据，经由磁通道发送磁通道数据; 与对等设备建立射频链路，对等体设备反馈磁通道数据的响应信息; 生成第一射频数据，使用磁通道数据对第一射频数据进行加密，经由射频链路将加密的第一射频数据发送到对等设备; 和/或经由射频链路接收由对等设备发送的加密的第二射频数据，以及使用磁通道数据解密加密的第二射频数据。通过上述技术方案，本发明避免了预设密钥被拦截或解密的风险，提高了射频链路数据交换过程的安全性。

2. 发明授权

US08630584B2 RF SIM card, card reader, and communication method 有权
标题翻译： RF SIM卡，读卡器和通讯方式
公开(公告)号：US08630584B2
公开(公告)日：2014-01-14
申请号：US13011125
申请日：2011-01-21
申请人： Yunbo Yu , Aimin Shen , Shan Zhu , Li Ouyang , Meixiang Li , Weixi Luo
发明人： Yunbo Yu , Aimin Shen , Shan Zhu , Li Ouyang , Meixiang Li , Weixi Luo
IPC分类号： H04B5/00
CPC分类号： H04M1/7253
摘要： A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.
摘要翻译：射频（RF）装置包括RF收发器，RF天线和磁信号检测器。选择RF处于非常高频（VHF），超高频（UHF）或超高频（SHF）频带中，使得屏蔽效果降低，并且RF设备可被配置为设置在手机具有增加的RF通信范围。磁信号检测器用于感测来自RF读取器的磁场信号，RF读取器包括RF收发器，RF天线和磁信号发射器。 VHF，UHF或SHF频带提供的更长的通信范围通过感测磁场而减少，从而提供通信范围控制，而RF设备和RF读取器通过RF信道交换信息，具有改进的安全性作为范围控制的结果。

3. 发明授权

US08682271B2 Method and device for improving communication distance accuracy of a transaction system via temperature compensation 有权
标题翻译：通过温度补偿提高交易系统的通信距离精度的方法和装置
公开(公告)号：US08682271B2
公开(公告)日：2014-03-25
申请号：US13132499
申请日：2009-11-02
申请人： Yingtong Sun , Meixiang Li
发明人： Yingtong Sun , Meixiang Li
IPC分类号： H04B17/00 , H04W24/00 , H04W4/02
CPC分类号： H04B17/0062 , G01S11/02 , H04B17/21 , H04B17/318 , H04W4/02
摘要： A method for improving communication distance accuracy of a transaction system via temperature compensation includes: storing a reference temperature value and a reference field intensity value in a card read micro-controller (101), wherein a temperature sensor (104) is used for detecting an external ambient temperature; based on a difference between the detected external ambient temperature and the reference temperature value, determining at the card read micro-controller (101) whether to perform temperature compensation to an RF field intensity or an equivalent value of the RF field intensity of a SIM card antenna (203), wherein the RF field intensity and the equivalent value of the RF field intensity are received by a card read antenna (103) and are transmitted to the card read micro-controller through a card read RF module (102); transmitting a distance determination result via the card read RF module (102) to the card read antenna (103), which sends the result to an RF SIM card (200). This invention includes the following benefits: it can improve distance control accuracy of the transaction system under various external temperatures environment and reduce unconscious long-distance card-swiping mis-operation.
摘要翻译：一种用于通过温度补偿来提高交易系统的通信距离精度的方法包括：将参考温度值和参考场强度值存储在读卡微控制器（101）中，其中使用温度传感器（104）来检测外部环境温度; 基于检测到的外部环境温度与参考温度值之间的差异，在卡读取微控制器（101）处确定是否对SIM卡的RF场强度的RF场强度或等效值进行温度补偿天线（203），其中所述RF场强度和所述RF场强度的等效值由卡读取天线（103）接收，并且通过读卡RF模块（102）发送到所述读卡微控制器; 通过读卡射频模块（102）向卡读取天线（103）发送距离确定结果，该读取天线将结果发送给RF SIM卡（200）。本发明具有以下优点：可以提高各种外部温度环境下交易系统的距离控制精度，减少无意识的长途卡片刷卡误操作。

4. 发明申请

US20130281117A1 SYSTEM AND METHOD FOR INDOOR POSITIONING OF MOBILE TERMINALS 审中-公开
标题翻译：移动终端的室内定位系统和方法
公开(公告)号：US20130281117A1
公开(公告)日：2013-10-24
申请号：US13976692
申请日：2011-12-30
申请人： Aimin Shen , Meixiang Li
发明人： Aimin Shen , Meixiang Li
IPC分类号： H04W64/00
CPC分类号： H04W64/003 , G01S5/0205 , G01S13/74
摘要： This invention discloses a system and method for indoor positioning of a mobile terminal. The system comprises a control end and at least one positioning node installed indoors. The at least one positioning node, under the control of the control end, transmits linkage information to the mobile terminal within a specific zone, receives response information responded by the mobile terminal, measures signal strength of the response information, and transmits the received response and signal strength information to the control end. The control end analyzes and calculates on the received response and signal strength information to locate the mobile terminal. Using this invention, a user can realize accurate positioning of an indoor mobile terminal without changing existing mobile terminals. The disclosed positioning system and method is simple and convenient for use and has extensive applicability.
摘要翻译：本发明公开了一种移动终端的室内定位系统和方法。该系统包括安装在室内的控制端和至少一个定位节点。所述至少一个定位节点在所述控制端的控制下，在特定区域内向所述移动终端发送链接信息，接收由所述移动终端应答的响应信息，测量所述响应信息的信号强度，并且发送所接收的响应和信号强度信息到控制端。控制端分析并计算接收到的响应和信号强度信息以定位移动终端。使用本发明，用户可以在不改变现有移动终端的情况下实现室内移动终端的精确定位。所公开的定位系统和方法使用简单方便，具有广泛的适用性。

5. 发明申请

US20110241840A1 METHOD AND DEVICE FOR IMPROVING COMMUNICATION DISTANCE ACCURACY OF A TRANSACTION SYSTEM VIA TEMPERATURE COMPENSATION 有权
标题翻译：用于通过温度补偿来提高交易系统的通信距离精度的方法和装置
公开(公告)号：US20110241840A1
公开(公告)日：2011-10-06
申请号：US13132499
申请日：2009-11-02
申请人： Yingtong Sun , Meixiang Li
发明人： Yingtong Sun , Meixiang Li
IPC分类号： G06K7/01
CPC分类号： H04B17/0062 , G01S11/02 , H04B17/21 , H04B17/318 , H04W4/02
摘要： A method for improving communication distance accuracy of a transaction system via temperature compensation includes: storing a reference temperature value and a reference field intensity value in a card read micro-controller (101), wherein a temperature sensor (104) is used for detecting an external ambient temperature; based on a difference between the detected external ambient temperature and the reference temperature value, determining at the card read micro-controller (101) whether to perform temperature compensation to an RF field intensity or an equivalent value of the RF field intensity of a SIM card antenna (203), wherein the RF field intensity and the equivalent value of the RF field intensity are received by a card read antenna (103) and are transmitted to the card read micro-controller through a card read RF module (102); transmitting a distance determination result via the card read RF module (102) to the card read antenna (103), which sends the result to an RF SIM card (200). This invention includes the following benefits: it can improve distance control accuracy of the transaction system under various external temperatures environment and reduce unconscious long-distance card-swiping mis-operation.
摘要翻译：一种用于通过温度补偿来提高交易系统的通信距离精度的方法包括：将参考温度值和参考场强度值存储在读卡微控制器（101）中，其中使用温度传感器（104）来检测外部环境温度; 基于检测到的外部环境温度与参考温度值之间的差异，在卡读取微控制器（101）处确定是否对SIM卡的RF场强度的RF场强度或等效值进行温度补偿天线（203），其中RF场强度和RF场强度的等效值由卡读取天线（103）接收，并通过读卡RF模块（102）发送到卡读取微控制器; 通过读卡射频模块（102）向卡读取天线（103）发送距离确定结果，该读取天线将结果发送给RF SIM卡（200）。本发明具有以下优点：可以提高各种外部温度环境下交易系统的距离控制精度，减少无意识的长途卡片刷卡误操作。

6. 发明授权

US09076051B2 Collision detection method for a radio-frequency SIM card with low-frequency magnetic communication 有权
标题翻译：具有低频磁通的射频SIM卡的碰撞检测方法
公开(公告)号：US09076051B2
公开(公告)日：2015-07-07
申请号：US13638168
申请日：2010-04-16
申请人： Meixiang Li , Xianwei Yang
发明人： Meixiang Li , Xianwei Yang
IPC分类号： H04B7/00 , G06K7/10
CPC分类号： G06K7/10128 , G06K7/10019 , G06K7/10356 , G06K7/10475
摘要： A collision detection method for a radio-frequency SIM card with low-frequency magnetic communication comprises: transmitting by a card reader low-frequency card seeking characteristic information; determining by a radio-frequency SIM card A whether an intensity of a low-frequency magnetic induction signal reaches a preset threshold value; if yes, receiving low-frequency card seeking characteristic information and transmitting card seeking response information through a radio-frequency channel; receiving by the card reader the card seeking response information, establishing a radio-frequency connection with the radio-frequency SIM card A, and opening a preset time window; when the preset time window closes, interrupting by the card reader a transaction process with the radio-frequency SIM card A and re-transmitting the low-frequency card seeking characteristic information; if receiving by the card reader card seeking response information transmitted by another radio-frequency SIM card B, ascertaining that a radio-frequency SIM card collision exists.
摘要翻译：一种用于具有低频磁通信的射频SIM卡的冲突检测方法包括：由读卡器发送低频卡寻找特征信息; 由射频SIM卡A确定低频磁感应信号的强度是否达到预设的阈值; 如果是，则通过射频信道接收低频卡寻找特征信息和发送卡寻求响应信息; 由读卡器接收卡寻求响应信息，与射频SIM卡A建立射频连接，并打开预设时间窗; 当预设时间窗关闭时，由读卡器中断与射频SIM卡A的交易处理，并重新发送低频卡寻找特征信息; 如果由读卡器卡接收到寻找由另一射频SIM卡B发送的响应信息，则确定存在射频SIM卡冲突。

7. 发明申请

US20110165862A1 RF SIM CARD, CARD READER, AND COMMUNICATION METHOD 有权
标题翻译： RF SIM卡，读卡器和通信方法
公开(公告)号：US20110165862A1
公开(公告)日：2011-07-07
申请号：US13011125
申请日：2011-01-21
申请人： Yunbo YU , Aimin Shen , Shan Zhu , Li Ouyang , Meixiang Li , Weixi Luo
发明人： Yunbo YU , Aimin Shen , Shan Zhu , Li Ouyang , Meixiang Li , Weixi Luo
IPC分类号： H04W12/06 , H04M1/02
CPC分类号： H04M1/7253
摘要： A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.
摘要翻译：射频（RF）装置包括RF收发器，RF天线和磁信号检测器。选择RF处于非常高频（VHF），超高频（UHF）或超高频（SHF）频带中，使得屏蔽效果降低，并且RF设备可被配置为设置在手机具有增加的RF通信范围。磁信号检测器用于感测来自RF读取器的磁场信号，RF读取器包括RF收发器，RF天线和磁信号发射器。 VHF，UHF或SHF频带提供的更长的通信范围通过感测磁场而减少，从而提供通信范围控制，而RF设备和RF读取器通过RF信道交换信息，具有改进的安全性作为范围控制的结果。

8. 发明授权

US09521546B2 Secure RF communication method, terminal and system 有权
标题翻译：安全RF通信方式，终端和系统
公开(公告)号：US09521546B2
公开(公告)日：2016-12-13
申请号：US14235046
申请日：2012-08-28
申请人： Meixiang Li
发明人： Meixiang Li
IPC分类号： H04M1/66 , H04W12/04 , H04L9/08 , H04L9/32 , H04W12/02 , H04L29/06 , H04W12/12 , H04B5/00
CPC分类号： H04W12/04 , H04B5/0031 , H04B5/0075 , H04L9/0827 , H04L9/3215 , H04L63/18 , H04L2209/80 , H04W12/02 , H04W12/12
摘要： A method, terminal and secure RF communication system are provided. The method for radio frequency secure communication of the invention comprises: generating magnetic channel data, and transmitting the magnetic channel data via a magnetic channel; establishing a radio frequency link with a peer device which feeds back a response information of the magnetic channel data; generating first radio frequency data, encrypting the first radio frequency data using the magnetic channel data, and transmitting the encrypted first radio frequency data to the peer device via the radio frequency link; and/or receiving encrypted second radio frequency data transmitted by the peer device via the radio frequency link, and decrypting the encrypted second radio frequency data using the magnetic channel data. By the above technical solution, the invention avoids the risk that a preset key is intercepted or decrypted, and enhances the security of the radio frequency link data exchanging process.
摘要翻译：提供了一种方法，终端和安全的RF通信系统。本发明的射频安全通信方法包括：产生磁通道数据，经由磁通道发送磁通道数据; 与对等设备建立射频链路，对等体设备反馈磁通道数据的响应信息; 生成第一射频数据，使用磁通道数据对第一射频数据进行加密，经由射频链路将加密的第一射频数据发送到对等设备; 和/或经由射频链路接收由对等设备发送的加密的第二射频数据，以及使用磁通道数据解密加密的第二射频数据。通过上述技术方案，本发明避免了预设密钥被拦截或解密的风险，提高了射频链路数据交换过程的安全性。

9. 发明申请

US20130012132A1 COLLISION DETECTION METHOD FOR A RADIO-FREQUENCY SIM CARD WITH LOW-FREQUENCY MAGNETIC COMMUNICATION 有权
标题翻译：具有低频磁通信的无线电频率卡的碰撞检测方法
公开(公告)号：US20130012132A1
公开(公告)日：2013-01-10
申请号：US13638168
申请日：2010-04-16
申请人： Meixiang Li , Xianwei Yang
发明人： Meixiang Li , Xianwei Yang
IPC分类号： H04B7/24
CPC分类号： G06K7/10128 , G06K7/10019 , G06K7/10356 , G06K7/10475
摘要： A collision detection method for a radio-frequency SIM card with low-frequency magnetic communication comprises: transmitting by a card reader low-frequency card seeking characteristic information; determining by a radio-frequency SIM card A whether an intensity of a low-frequency magnetic induction signal reaches a preset threshold value; if yes, receiving low-frequency card seeking characteristic information and transmitting card seeking response information through a radio-frequency channel; receiving by the card reader the card seeking response information, establishing a radio-frequency connection with the radio-frequency SIM card A, and opening a preset time window; when the preset time window closes, interrupting by the card reader a transaction process with the radio-frequency SIM card A and re-transmitting the low-frequency card seeking characteristic information; if receiving by the card reader card seeking response information transmitted by another radio-frequency SIM card B, ascertaining that a radio-frequency SIM card collision exists.
摘要翻译：一种用于具有低频磁通信的射频SIM卡的冲突检测方法包括：由读卡器发送低频卡寻找特征信息; 由射频SIM卡A确定低频磁感应信号的强度是否达到预设的阈值; 如果是，则通过射频信道接收低频卡寻找特征信息和发送卡寻求响应信息; 由读卡器接收卡寻求响应信息，与射频SIM卡A建立射频连接，并打开预设时间窗; 当预设时间窗关闭时，由读卡器中断与射频SIM卡A的交易处理，并重新发送低频卡寻找特征信息; 如果由读卡器卡接收到寻找由另一射频SIM卡B发送的响应信息，则确定存在射频SIM卡冲突。

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