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    ALGORITHM FOR RFID SECURITY
    92.
    发明公开
    ALGORITHM FOR RFID SECURITY 有权
    算法RFID安全

    公开(公告)号：EP1683069A1

    公开(公告)日：2006-07-26

    申请号：EP04794041.6

    申请日：2004-10-04

    Applicant: 3M Innovative Properties Company

    Inventor： MERCER, Thomas C. ,  JESME, Ronald D. ,  GOFF, Edward D.

    IPC: G06K7/08 ,  G08B13/24

    CPC classification number: G06K7/0008 ,  G08B13/2457 ,  G08B13/2485

    Abstract: Techniques for detecting radio-frequency identification (RFID) tags are disclosed. For example, an exit control system is described that detects unauthorized 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. The RF reader outputs RF signals through the antennas to create electromagnetic fields within the interrogation corridors. The reader outputs RF power from a single port to the multiple antennas via a splitter/combiner. In this way, a single RF reader with only one transmitter/receiver port simultaneously interrogates multiple antennas. A variety of techniques are described by which the reader can detect the removal of an unauthorized article.

    TAG ASSEMBLY WITH MULTIPLE ANTENNAS, ICs, AND/OR SENSING ELEMENTS
    100.
    发明公开
    TAG ASSEMBLY WITH MULTIPLE ANTENNAS, ICs, AND/OR SENSING ELEMENTS 审中-公开
    具有多个天线，IC和/或感测元件的标签组件

    公开(公告)号：EP3215986A2

    公开(公告)日：2017-09-13

    申请号：EP15797735.6

    申请日：2015-11-02

    Applicant: 3M Innovative Properties Company

    Inventor： GABRIEL, Nicholas T. ,  JESME, Ronald D. ,  BONIFAS, Andrew P.

    IPC: G06K19/07

    CPC classification number: G06K19/0707 ,  G06K7/10356 ,  G06K19/0716 ,  G06K19/0723 ,  G06K19/0724

    Abstract: At least some aspects of the present disclosure feature a radio frequency identification (RFID) tag adapted to wirelessly communicate with a remote transceiver. The RFID tag includes a substrate; and first and second circuits disposed on the substrate and comprising respective first and second antennas magnetically coupled to one another. At least some aspects of the present disclosure feature a RFID tag having a plurality of RF circuits, where each RF circuit is electronically coupled to a sensing element.

    Abstract translation: 本公开的至少一些方面以适于与远程收发器无线通信的射频标识（RFID）标签为特征。 RFID标签包括衬底; 以及第一和第二电路，所述第一和第二电路设置在所述衬底上并且包括彼此磁耦合的相应的第一和第二天线。 本公开的至少一些方面以具有多个RF电路的RFID标签为特征，其中每个RF电路电子地耦合到感测元件。

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