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75 条记录 (耗时 0.016 秒)

    RF reactivatable marker
    11.
    发明公开
    RF reactivatable marker 失效
    RF-reaktivierbares Etikett。

    公开(公告)号：EP0215605A2

    公开(公告)日：1987-03-25

    申请号：EP86306757.5

    申请日：1986-09-02

    申请人： MINNESOTA MINING AND MANUFACTURING COMPANY

    发明人： Montean, Samuel Minnesota Mining and

    IPC分类号： G08B13/24

    CPC分类号： G08B13/242 ,  G01V15/00 ,  G08B13/2437 ,  G08B13/2442 ,  G08B13/2457 ,  H01L27/01

    摘要： A marker 10, 52, 78, 124, 144, 156, 188, 191, 214, 244, for use in radio frequency electronic article surveillance systems where the marker contains an inductive-capacitive resonant circuit and is made reversibly deactivatable and reactivatable by the addition of a piece of magnetic material 36, 46, 62, 64, 90, 92, 108, 110, 112, 114, 132, 134, 136, 138, 152, 180, 198, 204, 208, 212, 222, 224, and means, such as a piece of permanently magnetizable material 40, 42, 48, 50, 70, 72, 96, 98, 116, 118, 120, 122, 140, 142, 154, 182, 200, 210, 226, for biasing the first material to prevent alternating fields induced therein from changing the magnetic state of that material, thereby preventing hysteresis losses from causing a lowering of the Q of the resonant circuit below the point of detection.

    摘要翻译： 标记10,52,78,124,144,156,188,191,214,244，用于射频电子物品监视系统，其中标记包含电感 - 电容谐振电路并且被制造为可逆地去激活并且可由 添加一块磁性材料36,46,62,64,90,92,108,110,112,114,132,134,136,138,152,180,198,204,208,212,222,224 ，以及诸如永久可磁化材料片40,42,48,50,70,72,96,98,116,118,120,122,140,​​142,154,182,200,210,226,226的装置， 用于偏置第一材料以防止其中引起的交变场改变该材料的磁状态，从而防止滞后损耗导致谐振电路的Q降低到低于检测点。

    SECURITY SYSTEM AND SECURITY TAG ASSEMBLY
    13.
    发明公开
    SECURITY SYSTEM AND SECURITY TAG ASSEMBLY 审中-公开

    公开(公告)号：EP3252727A3

    公开(公告)日：2018-02-28

    申请号：EP17164506.2

    申请日：2017-04-03

    申请人： ES Holding Dragør ApS ,  Braeburn Asset Holdings, LLC

    发明人： Stenild, Eddie L ,  Skjellerup, Johan

    IPC分类号： G08B13/24 ,  E05B73/00

    CPC分类号： G08B13/2417 ,  E05B73/0017 ,  E05B73/0064 ,  G08B13/2434 ,  G08B13/2454 ,  G08B13/2457 ,  G08B13/246

    摘要： A security system and security tag assembly cooperatively operative to restrict unauthorized removal of an article from an area, wherein the security tag assembly is removably attached to the article and includes an RFID component/label configured to encode and retain data associated with the article to which it is attached. A deactivator assembly includes a read component structured to read the article data encoded in the security tag assembly, before or during removal of the tag assembly, wherein the read data is transmitted to a processor for display, storage and/or supplementary processing. One or more portable readers, not associated with the deactivator assembly or processor, are configured to access and display the article data for authorized article control. A review application may be downloaded on communication devices having short range technology and is configured to access the article data to obtain information relating thereto.

    Method for detecting unauthorized RFID security tags
    20.
    发明公开
    Method for detecting unauthorized RFID security tags 审中-公开
    Verfahren zum Detektieren von unberechtigten RFID Sicherheitsetiketten

    公开(公告)号：EP1873684A3

    公开(公告)日：2008-01-09

    申请号：EP07117273.8

    申请日：2004-10-04

    申请人： 3M Innovative Properties Co.

    发明人： Mercer, Thomas C. ,  Jesme, Ronald D. ,  Goff, Edward D.

    IPC分类号： G06K7/08 ,  G08B13/24

    CPC分类号： G06K7/0008 ,  G08B13/2457 ,  G08B13/2485

    摘要： An exit control system is described that detects unauthorised removal of articles from a protected facility. A series of antennas are setup to produce interrogation corridors located near the exit of the protected area. RFID tags are attached to the articles to be protected. Each tag includes information that uniquely identifies the article to which it is affixed and status information as to whether the articles removal from the facility is authorized. When a plurality of tags are interrogated, the detection of a collision at status information bits is indicative of a non-authorized RFID tag.

    摘要翻译： 描述了一种出口控制系统，其检测来自受保护设施的未经授权的物品移除。 设置一系列天线以产生位于保护区出口附近的询问走廊。 RFID标签附着在要保护的物品上。 每个标签包括唯一标识其所附文章的信息以及关于从设施移除文章是否被授权的状态信息。 当询问多个标签时，在状态信息比特处的冲突的检测表示未经授权的RFID标签。