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System and method for detecting the seat occupancy in a vehicle

  • US 20040245035A1
  • Filed: 05/10/2004
  • Published: 12/09/2004
  • Est. Priority Date: 11/20/2002
  • Status: Active Grant
First Claim
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1. A system for detecting the seat occupancy in a vehicle, comprising at least one microwave transmitter, reflectors which are arranged in the vehicle, and at least one microwave receiver, wherein the one or more microwave transmitters and the reflectors are arranged so that the reflected intensity depends on the seat occupancy in the vehicle, the reflectors can be selectively activated or deactivated during defined time intervals, the reflectors can be distinguished from one another via an assignment of the reflectors to the time intervals, and the reflectors are modulating back-scatter devices.

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