Deactivatable EAS tag
    12.
    发明授权
    Deactivatable EAS tag 失效
    可停用的EAS标签

    公开(公告)号:US5608379A

    公开(公告)日:1997-03-04

    申请号:US247100

    申请日:1994-05-20

    Abstract: A deactivatable EAS tag in which a circuit comprising a non-linear element causes the generation of a detectable signal in response to an interrogating signal and in which a first magnetic element is arranged to be brought from a first position where the magnetic element does not short the non-linear element to a second position where the magnetic element shorts the non-linear element.

    Abstract translation: 一种可失活的EAS标签,其中包括非线性元件的电路导致响应于询问信号产生可检测信号,并且其中第一磁性元件布置成从磁性元件不短的第一位置 所述非线性元件到达所述磁性元件使所述非线性元件短路的第二位置。

    ENERGY HARVESTING FROM FIRE PANEL
    13.
    发明申请

    公开(公告)号:US20190334740A1

    公开(公告)日:2019-10-31

    申请号:US16309609

    申请日:2016-06-15

    Abstract: In a fire alert system energy is harvested from a wire line pair (408) used to provide primary electrical power from a fire panel central monitoring station to a plurality of remote devices (406). The fire panel central monitoring station begins communications with a remote device by modulating the voltage on the wire line pair so as to communicate a first message (502) to one of the plurality of remote devices. Thereafter, one of the remote devices will respond to the first message with a second message (504) by modulating the voltage on the line pair. Energy is selectively harvested from the wire line pair at one or more of the remote devices in accordance with the remote device address specified in the first message.

    SECURITY MARKER
    16.
    发明申请
    SECURITY MARKER 审中-公开

    公开(公告)号:US20190147714A1

    公开(公告)日:2019-05-16

    申请号:US15812929

    申请日:2017-11-14

    CPC classification number: G08B13/2442 G08B13/244 H03H3/06 H03H9/22

    Abstract: Systems and methods for making a marker. The methods comprise: disposing a resonator with a flat planar cross-sectional profile in a cavity formed in a first substrate partially defining a marker housing; sealing the cavity using a second substrate; placing a first bias element adjacent to the second substrate so that the resonator will be biased by the first bias element when the marker is in use to oscillate at a frequency of a received transmit burst; and using a physical structure in the cavity or a magnetic field passing through the cavity to reduce frictional forces between the resonator and at least the second substrate.

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