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    • 2. 发明授权
    • Data transfer system and associated management method
    • 数据传输系统及相关管理方法
    • US09256820B2
    • 2016-02-09
    • US13417643
    • 2012-03-12
    • Sylvain BacquetElisabeth CrochonThierry Thomas
    • Sylvain BacquetElisabeth CrochonThierry Thomas
    • G06K19/07G06K7/00G06K7/10H04L12/24H04L12/66
    • G06K19/0707G06K7/0008G06K7/10207G06K19/0704G06K19/0723H04L12/66H04L41/0213
    • A method for managing a data transfer system includes recovering energy at peripheral devices, and wireless transfer recovered energy to a base by synchronizing RF signals transmitted by double-loop antennas. Synchronizing includes implementing a listening phase to detect a radio-frequency signal transmitted by said central base, and either sending an RF signal that is synchronous with the detected signal or transmitting a signal at a predetermined frequency depending on whether an RF signal is detected at the base. The method includes, in response to receiving a signal from the peripheral device at that frequency, causing the base to recover the received signal and to re-transmit at the predetermined frequency to the peripheral devices. This signal synchronization enables simultaneous energy transfer from peripheral devices to the central base while avoiding mutually destructive effects between said signals.
    • 一种用于管理数据传输系统的方法包括:通过同步由双环天线发射的RF信号来恢复外围设备的能量,并将恢复的能量传送到基站。 同步包括实现监听阶段以检测由所述中央基站发射的射频信号,以及发送与检测到的信号同步的RF信号或者以预定频率发送信号,这取决于是否在 基础。 该方法包括响应于以该频率从外围设备接收信号,使得基站恢复接收到的信号并以预定频率重新发射到外围设备。 该信号同步使得能够从外围设备到中心基站同时传输能量,同时避免所述信号之间的相互破坏的影响。
    • 10. 发明申请
    • SYSTEM FOR SECURE COMMUNICATION BETWEEN A CONTACTLESS CARD READER AND A CARD
    • 联系卡读卡器和卡片之间的安全通信系统
    • US20080237346A1
    • 2008-10-02
    • US12053715
    • 2008-03-24
    • Olivier SAVRYThierry Thomas
    • Olivier SAVRYThierry Thomas
    • G06K7/08
    • H04K3/825G06K7/0008G06K7/10336H04K3/28H04K3/42H04K3/44H04K3/45H04K2203/20H04K2203/32
    • The invention relates to contactless communication systems between a moving object and a reader, in particular systems in which the moving object is a chip card or an identification tag. To enhance communication security, the card reader transmits, from a radiofrequency transmission antenna separate from the main communication antenna, a disturbance signal having the same frequency and modulation type characteristics as the response signal expected from the card to the reader; the electromagnetic coupling between this separate antenna and the antenna of the reader is, however, such that the latter does not “see” the transmitted disturbance but detects only the response from the card; on the other hand, the environment between the card and the reader sees the response from the card only mixed with the disturbance signal.
    • 本发明涉及移动物体和读取器之间的非接触通信系统,特别是其中移动物体是芯片卡或识别标签的系统。 为了增强通信安全性,读卡器从与主通信天线分开的射频发送天线发送具有与从卡到读取器预期的响应信号相同的频率和调制类型特性的干扰信号; 然而,该分离的天线与读取器的天线之间的电磁耦合使得后者不会“看到”传输的干扰,而仅检测来自卡的响应; 另一方面,卡和读卡器之间的环境看到来自卡的响应仅与干扰信号混合。