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    • 3. 发明申请
    • METHOD AND APPARATUS FOR POWERING A SECURITY DEVICE
    • 用于为安全设备供电的方法和装置
    • US20130009770A1
    • 2013-01-10
    • US13541246
    • 2012-07-03
    • Lawrence R. YeagerLee H. EckertGary Mark Shafer
    • Lawrence R. YeagerLee H. EckertGary Mark Shafer
    • G08B29/02G08B13/08
    • G08B13/2402G08B29/04
    • A security apparatus and method for protecting merchandise items is presented. In the preferred embodiment, a merchandise security device includes a housing with an access door that has an open position and a closed position, a primary power source, a secondary power source and alarm system. The alarm system determines when a voltage of the primary power source drops below a threshold value. When the voltage drops below the threshold value, the alarm system switches to the secondary power source for its power. When the alarm system is in a standby mode, it will not generate alarms when operating on the secondary power source. However, when the alarm system has not been placed into a standby mode, the alarm system will generate alarms when operating on the secondary power source and the access door is in the open position.
    • 提出了一种用于保护商品的安全装置和方法。 在优选实施例中,商品安全装置包括具有开门位置和关闭位置的入口门的外壳,主电源,次电源和报警系统。 报警系统确定主电源的电压何时下降到阈值以下。 当电压下降到阈值以下时,报警系统切换到二次电源供电。 当报警系统处于待机模式时,在二次电源上运行时不会产生报警。 但是,当报警系统尚未进入待机模式时,报警系统在二次电源上操作时会产生报警,而进入门处于打开位置。
    • 7. 发明申请
    • METHOD AND SYSTEM FOR ITEM LEVEL UHF RFID TAG WITH LOW FREQUENCY POWER ASSIST
    • 用于低频电力辅助设备的UHF RFID标签的方法和系统
    • US20100148965A1
    • 2010-06-17
    • US12336068
    • 2008-12-16
    • Mark ALEXISMing-Ren LIANGary Mark SHAFER
    • Mark ALEXISMing-Ren LIANGary Mark SHAFER
    • G08B13/14
    • G06K19/0723G06K19/0707
    • A method and system for increasing the read range of a security tag by supplying an additional antenna system to the tag in order to provide power to a radio frequency identification (“RFID”) chip without the need to rely solely on power from the RFID reader. The security tag includes an RFID chip and a first antenna circuit coupled to the RFID chip where the first antenna circuit is adapted to decode interrogation signals from an RFID reader. The security tag also includes a second antenna circuit coupled to the RFID chip. The second antenna circuit is adapted to induce power from signals received from at least an alternate power source, such as an EAS transmitter, so that the RFID chip can be powered up and activated during an RFID interrogation round.
    • 一种用于通过向标签提供附加天线系统来增加安全标签的读取范围的方法和系统,以便向射频识别(“RFID”)芯片提供电力,而不需要仅依赖来自RFID读取器的电力 。 安全标签包括RFID芯片和耦合到RFID芯片的第一天线电路,其中第一天线电路适于解码来自RFID读取器的询问信号。 安全标签还包括耦合到RFID芯片的第二天线电路。 第二天线电路适于从至少一个替代电源(例如EAS发射机)接收的信号中诱发电力,使得RFID芯片可以在RFID询问周期期间被加电和激活。
    • 9. 发明申请
    • RFID SYSTEM WITH INTEGRATED SWITCHED ANTENNA ARRAY AND MULTIPLEXER ELECTRONICS
    • 具有集成开关天线阵列和多路复用器电子的RFID系统
    • US20090027202A1
    • 2009-01-29
    • US11829315
    • 2007-07-27
    • Richard L. COPELANDGary Mark SHAFER
    • Richard L. COPELANDGary Mark SHAFER
    • H04B7/00
    • H01Q1/2216H01Q21/28
    • An RFID detection system for determining the location of tagged items within an interrogation zone. The system includes one or more printed circuit boards coupled to each other and placed within a region of the interrogation zone. Each printed circuit board contains an antenna array having one or more antennas where each antenna detects the presence of one or more tagged items within a specific read zone in the region. The printed circuit board also contains a multiplexer coupled to the antenna array, where the antenna array and the multiplexer are provided on a substrate. Upon an interrogation request from an RFID reader, a specific antenna can be activated and selected by the multiplexer and tagged items within the antenna's read zone are interrogated. RF signals containing RF identification information are then transmitted back to the RFID reader where a host computer interprets the signals and determines the location of the identified tagged items.
    • 一种RFID检测系统,用于确定询问区内标记物品的位置。 该系统包括彼此耦合并放置在询问区域的区域内的一个或多个印刷电路板。 每个印刷电路板包含具有一个或多个天线的天线阵列,其中每个天线检测该区域内的特定读取区域内存在一个或多个标记的物品。 印刷电路板还包括耦合到天线阵列的多路复用器,其中天线阵列和多路复用器设置在基板上。 根据来自RFID读取器的询问请求,可以通过多路复用器激活并选择特定天线,并且询问天线读取区域内的标记物品。 然后将包含RF识别信息的RF信号发送回RFID读取器,其中主计算机解释信号并确定所识别的标记物品的位置。