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PASSENGER DETECTION SYSTEM

  • US 20010013697A1
  • Filed: 11/13/1998
  • Published: 08/16/2001
  • Est. Priority Date: 11/17/1997
  • Status: Active Grant
First Claim
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1. A passenger detection system comprising:

  • an antenna electrode which is provided to a portion of a vehicle in front of a seat of the vehicle so as to face a passenger seated on the seat;

    an oscillation means for generating a high frequency low voltage oscillation signal in order to generate a weak alternating electric field around the antenna electrode;

    a current detection means for detecting a transmission current which passes between the oscillation means and the antenna electrode depending on the weak alternating electric field which is generated around the antenna electrode; and

    a judgment means for judging the distance between the passenger and the portion of the vehicle based on the transmission current which has been detected by the current detection means.

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