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Vehicle occupant proximity sensor

  • US 6,693,442 B2
  • Filed: 02/18/2003
  • Issued: 02/17/2004
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Term
First Claim
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1. A method for activating a vehicle occupant safety system including the steps of:

  • a. Measuring capacitance at each of a plurality of points in a vehicle passenger compartment having an occupant safety system;

    b. Determining a position of an occupant relative to the safety system based upon said step a;

    c. Monitoring a change in position of the occupant over time based upon said step b;

    d. Ignoring an apparent instantaneous position of the occupant if it is inconsistent with the monitored change in position over time as determined in said step c); and

    e. Determining whether to activate the vehicle occupant safety system based upon said steps b and d.

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