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Arrangements for detecting the presence or location of an object in a vehicle and for controlling deployment of a safety restraint

  • US 20020082756A1
  • Filed: 02/09/2001
  • Published: 06/27/2002
  • Est. Priority Date: 02/08/1996
  • Status: Active Grant
First Claim
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1. An arrangement for detecting the presence of an object in a passenger compartment of a vehicle, comprising a plurality of ultrasonic transmitters for transmitting ultrasonic waves into the passenger compartment, each of said transmitters operating at a distinct transmitting frequency and positioned at a distinct location relative to the other of said transmitters, at least one receiver disposed so as to receive from the passenger compartment ultrasonic waves transmitted from at least one of said transmitters and modified by passing through at least part of the passenger compartment, and a processor operatively coupled to said at least one receiver for determining whether an object is located in the passenger compartment based on the ultrasonic waves received by said at least one receiver.

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