发明名称 Identification band using serpentine paths to detect tampering
摘要 A tamper-resistant RFID wristband that becomes permanently disabled upon tampering. The wristband includes a plurality of holes for snugly securing the band to a wearer, an RFID circuit, and an electrically conductive loop disposed in the band. The RFID circuit and the conductive loop are electrically coupled to form a series circuit, severance of which disables the wristband. The electrically conductive loop includes a first layer and a second layer that are electrically isolated from one another, save for at least one electrical connection made preferably by a via at the end of the band distal from the antenna element. The first layer encircles the holes in a serpentine path on one layer of the band and the second layer encircles the holes in a complimentary serpentine path on a different layer of the band.
申请公布号 US7579950(B2) 申请公布日期 2009.08.25
申请号 US20060541841 申请日期 2006.10.02
申请人 BARTRONICS AMERICA, INC. 发明人 LERCH JOHN W;GIRVIN JOSHUA M.;NORAIR JOHN P.;MOU PEIJEN S.
分类号 G08B13/12 主分类号 G08B13/12
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