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Vehicle/aircraft security system based on vehicle displacement profile, with optional GPS/cellular discrimination indicator

  • US RE38,378 E1
  • Filed: 07/27/2001
  • Issued: 01/06/2004
  • Est. Priority Date: 03/05/1997
  • Status: Expired due to Fees
First Claim
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1. An alarm system for a motor vehicle, comprising:

  • a) a displacement sensor that measures the distance between said displacement sensor and a surface on which the motor vehicle sits;

    b) an indication system; and

    c) logic means connected to said displacement sensor and to said indication system, said logic means including instruction means for activating said indication system when said displacement sensor senses a displacement event that matches a predetermined displacement profile.

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