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System and method of tamper detection

  • US 20060238341A1
  • Filed: 04/19/2006
  • Published: 10/26/2006
  • Est. Priority Date: 04/20/2005
  • Status: Active Grant
First Claim
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1. Tamper detection system comprising:

  • a passive electronic sensor including a circuit having first, second, and third nodes;

    a load connected between the first and second nodes of the circuit;

    a friable electrical connection element connected between the second and third nodes of the circuit; and

    a storage unit, connected to the second node of the circuit, for storing an identification code of the sensor;

    wherein in use a voltage is applied across the first and third nodes of the circuit, and wherein when the friable electrical connection element is intact, the second node of the circuit is at a first voltage and when the friable electrical connection element is broken, the second node of the circuit is at a second voltage.

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