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Occupant presence detection device

  • US 7,135,983 B2
  • Filed: 12/13/2002
  • Issued: 11/14/2006
  • Est. Priority Date: 12/13/2001
  • Status: Expired due to Fees
First Claim
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1. An occupant presence detector comprising:

  • a bridge circuit including a first electrode, the bridge circuit including a sensing arm and a reference arm, the sensor arm including the first electrode, the bridge circuit being balanced when no occupant is detected near the first electrode, the bridge circuit becoming unbalanced based upon the presence of an occupant near the first electrode; and

    a differential amplifier determining when the bridge circuit is unbalanced.

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  • 3 Assignments
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