Deactivatable radio frequency security label
    1.
    发明授权
    Deactivatable radio frequency security label 有权
    无效射频安全标签

    公开(公告)号:US06919806B2

    公开(公告)日:2005-07-19

    申请号:US10236809

    申请日:2002-09-06

    IPC分类号: G08B13/24 G08B13/14

    CPC分类号: G08B13/242

    摘要: A deactivation apparatus for an electronic article surveillance tag having a plurality of layers and an equivalent resonant circuit containing an inductor and a capacitor is provided. The apparatus includes: a capacitor formed by a pair of conductive capacitor plates separated apart by a dielectric layer; an inductor connected to each of the pair of capacitor plates where an electromagnetic field of a preselected frequency at a first magnitude impinging upon the tag causes the equivalent resonant circuit to resonate and produce a detectable response from the tag; and, an electrically weakened area in the dielectric layer between the pair of conductive capacitor plates where the electromagnetic field at a second magnitude higher than the first magnitude impinging upon the tag causes a conductive path through the weakened area electrically connecting the pair of capacitor plates together and deactivating the tag.

    摘要翻译: 提供一种具有多个层的电子物品监视标签的停用装置和包含电感器和电容器的等效谐振电路。 该装置包括:由电介质层隔开的一对导电电容器板形成的电容器; 连接到所述一对电容器板中的每一个的电感器,其中第一幅度的预选频率的电磁场照射在所述标签上,使所述等效谐振电路谐振并产生来自所述标签的可检测响应; 并且在一对导电电容器板之间的电介质层中的电弱化区域,其中第二幅度的第二幅度的电磁场照射在标签上,导致通过弱电区域的导电路径,将弱电区域电连接在一对电容器板上 并停用标签。

    Portable security platform
    3.
    发明申请
    Portable security platform 审中-公开
    便携式安全平台

    公开(公告)号:US20050110634A1

    公开(公告)日:2005-05-26

    申请号:US10718447

    申请日:2003-11-20

    摘要: A security system including a camera configured to generate a video signal, an object recognition system coupled to the camera and configured to receive and monitor the video signal and a portable personal digital assistant (PDA) wirelessly coupled to the object recognition system and the camera. The PDA may display video from the camera and/or data or alarms in response to output from the object recognition system. Methods of providing security information including displaying live video on a PDA and providing a signal on the PDA in response to an output of an object recognition system are also provided.

    摘要翻译: 一种安全系统,包括被配置为产生视频信号的相机,耦合到相机并被配置为接收和监视视频信号的对象识别系统以及无线地耦合到对象识别系统和相机的便携式个人数字助理(PDA)。 PDA可以响应于来自对象识别系统的输出,从相机和/或数据或报警显示视频。 还提供了提供安全信息的方法,包括在PDA上显示实时视频并响应于对象识别系统的输出在PDA上提供信号。

    Object recognition system including an adaptive light source
    4.
    发明申请
    Object recognition system including an adaptive light source 审中-公开
    对象识别系统包括自适应光源

    公开(公告)号:US20050074183A1

    公开(公告)日:2005-04-07

    申请号:US10666261

    申请日:2003-09-19

    申请人: Douglas Narlow

    发明人: Douglas Narlow

    CPC分类号: G07C9/00158 G06K9/00221

    摘要: An object recognition system including a light source controller configured to control an illumination level of a light source in response to an ambient light level. A camera is configured to capture an image of an object illuminated by the light source. A computer compares data representative of the image to stored image data. A method of illuminating an object in an object recognition system and a method of controlling access of an object to a secure area are also provided.

    摘要翻译: 一种物体识别系统,包括光源控制器,被配置为响应于环境光水平来控制光源的照明水平。 相机被配置为捕获由光源照亮的对象的图像。 计算机将表示图像的数据与存储的图像数据进行比较。 还提供了一种照亮对象识别系统中的对象的方法以及控制对象到安全区域的访问的方法。

    Deactivatable EAS tag
    5.
    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

    IPC分类号: G08B13/24 H01Q1/22 H01Q9/28

    摘要: 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.

    摘要翻译: 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。