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    • 6. 发明申请
    • Detection signal generator circuit for an RFID reader
    • 用于RFID读取器的检测信号发生器电路
    • US20070229273A1
    • 2007-10-04
    • US11396290
    • 2006-03-31
    • James HoemannPeter Lowe
    • James HoemannPeter Lowe
    • G08B13/14
    • G06K7/0008G06K7/0086G06K7/10009G06K7/10128
    • An RFID transponder detector is provided having a coupled oscillator system. Coupled first and second LC pairs of the system produce a detection signal each time a combination of pulses is applied to the LC pairs. Application of the pulses is repeated periodically to produce a sequence fo detection signals having two different first and second detection frequencies. Transmitting the sequence of detection signals results in corresponding first and second response signals having the first and second detection frequencies at the LC pairs. Values of a preselected detection parameter for the detection signals are compared to the values of the detection parameter for the response signals to determine if a transponder having a transponder resonant frequency corresponding to the first or second detection frequency is present in a proximal space of the transponder detector.
    • 提供了具有耦合振荡器系统的RFID应答器检测器。 每当脉冲组合施加到LC对时,系统的耦合的第一和第二LC对产生检测信号。 周期性地重复脉冲的应用以产生具有两个不同的第一和第二检测频率的检测信号序列。 发送检测信号的序列导致在LC对具有第一和第二检测频率的对应的第一和第二响应信号。 将检测信号的预选检测参数的值与响应信号的检测参数的值进行比较,以确定具有与第一或第二检测频率相对应的应答器谐振频率的应答器是否存在于应答器的近端空间中 探测器。
    • 8. 发明申请
    • Biometrically authenticated portable access device
    • 生物认证便携式接入设备
    • US20050253683A1
    • 2005-11-17
    • US10847542
    • 2004-05-17
    • Peter Lowe
    • Peter Lowe
    • G05B19/00G06F21/00G06K19/07G06K19/073G07C9/00H04Q1/00
    • G07C9/00087G06F21/32G06K19/0723G06K19/07354G07C2009/00095
    • A biometrically authenticated portable access device, includes a biometric sensor for measuring a live biometric parameter of an unverified user, an authenticator controlling a switch that enables and disables a conventional RFID tag and a stored biometric template corresponding to a previously measured biometric parameter of an authorized user. The authenticator compares the live biometric parameter of the unverified user to the stored biometric template and enables the RFID tag when the live biometric parameter matches the stored biometric template. The RFID tag is programmable in conventional RFID tag programmers that may be proprietary permitting the portable access device to be used with existing installed systems of proprietary and non-proprietary RFID tag programmers and readers.
    • 生物测定认证的便携式存取装置包括用于测量未经验证的用户的实时生物特征参数的生物测定传感器,控制启用和禁用常规RFID标签的开关的认证器,以及对应于经授权的先前测量的生物特征参数的存储的生物测定模板 用户。 认证者将未验证用户的实时生物特征参数与存储的生物特征模板进行比较,并且当活体生物特征参数与存储的生物特征模板匹配时启用RFID标签。 RFID标签可以在传统的RFID标签编程器中编程,其可以是专有的,允许便携式接入设备与已经安装的专有和非专有RFID标签程序员和读取器的系统一起使用。