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Changing Indicia in an electronic tag when tampered with

  • US 6,002,343 A
  • Filed: 03/11/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 10/28/1996
  • Status: Expired due to Term
First Claim
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1. An electronic seal comprising:

  • an electronic tag;

    an electrically resistive element in electrical communication with and attached to said tag, wherein tampering with the electrically resistive element causes a change in said electrical resistance, said change in electrical resistance being communicated to said tag, wherein said resistive element comprises a multiplicity of resistive wires, wherein only a random number of said wires are electrically connected to internal connection points in said tag such that said resistive element has a statistically random electrical resistance.

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