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Theft detection system and method

  • US 6,970,095 B1
  • Filed: 05/17/2000
  • Issued: 11/29/2005
  • Est. Priority Date: 05/17/1999
  • Status: Expired due to Fees
First Claim
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1. A theft detection and deterrence system comprising:

  • an accelerometer attachable to an object, wherein the accelerometer measures the acceleration of the object and provides an acceleration signal in response to motion of the object;

    a processor for processing the acceleration signal to determine if the motion of the object is a hostile motion and wherein the processor provides a corresponding output;

    a hostility state machine responsive to the output of the processor comprising;

    a non-hostility state and a hostility state, the hostility state comprising an initial hostility state level and at least a subsequent hostility state level, wherein the non-hostility state represents a not-stolen status and the hostility state represents a stolen status and wherein the hostility state machine determines a current hostility state level;

    means for decreasing the current hostility state level when at the at least a subsequent hostility state level to the initial hostility state level; and

    an alarm subsystem responsive to the control signal providing an alarm signal in response to hostile motion.

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