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    METHOD TO DRIVE AN ANTENNA COIL MAINTAINING LIMITED POWER SOURCE OUTPUT
    1.
    发明公开
    METHOD TO DRIVE AN ANTENNA COIL MAINTAINING LIMITED POWER SOURCE OUTPUT 有权
    一种用于操作天线线圈在维持限定电源版

    公开(公告)号：EP2973847A1

    公开(公告)日：2016-01-20

    申请号：EP14724863.7

    申请日：2014-03-14

    申请人： Tyco Fire & Security GmbH

    发明人： PADULA, Guillermo

    IPC分类号： H01Q1/22 ,  H01Q7/00 ,  H01Q21/29 ,  H01Q3/30

    CPC分类号： G08B13/2431 ,  H01Q1/2216 ,  H01Q3/30 ,  H01Q7/00 ,  H01Q21/29

    摘要： Electronic article surveillance system includes an antenna system comprised of two or more of resonant circuits. Each resonant circuit includes an exciter coil having at least one wire turn aligned on a common coil axis. A transmitter is coupled to the antenna system and is arranged to generate an antenna system composite exciter signal. The composite exciter signal is comprised of a plurality of co-exciter signals having the same predetermined frequency. The composite exciter signal is capable of exciting an EAS security tag when applied to the antenna system. The transmitter has two or more transmitter output ports, each independently coupled to one of the plurality of resonant circuits. Each of the plurality of co- exciter signals is respectively provided separately from a transmitter output port to one of the of resonant circuits.

    摘要翻译： 电子物品监视系统，包括：在包括两个或更多个谐振电路的天线系统。 每个谐振电路包括在具有至少一个线匝在共同的线圈轴线对准励磁线圈。 发射机被耦合到天线系统，并且被布置在天线系统的复合激励信号以生成。 复合激励信号由具有相同的预定频率共同激励信号的多个。 该复合信号激励器是能够在EAS安全标签激动人心当施加到天线系统。该发射机具有两个或更多发射器输出端口，每个unabhängig耦合到谐振电路的多个之一。 各共同激励信号的多个被分别单独地从发射机输出端口提供到的谐振电路中的一个。