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Passenger detecting system and passenger detecting method

  • US 6,043,743 A
  • Filed: 02/25/1998
  • Issued: 03/28/2000
  • Est. Priority Date: 02/26/1997
  • Status: Expired due to Term
First Claim
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1. A passenger detecting system, comprising:

  • a seat;

    a plurality of electrodes disposed at predetermined intervals on at least the front surface of said seat;

    an oscillating circuit for generating a weak electric field between at least one particular electrode (referred to as a first type electrode) of said electrodes and the other electrodes (referred to as second type electrodes);

    a current/voltage converting circuit for detecting displacement currents that flow corresponding to the weak electric field and for converting the displacement currents into respective voltages; and

    a controlling circuit for detecting a seating pattern indicative of an orientation of a passenger on said seat corresponding to output signals of said current/voltage converting circuit.

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