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Detecting the presence of a handheld communication device in a vehicle

  • US 9,408,043 B2
  • Filed: 05/20/2014
  • Issued: 08/02/2016
  • Est. Priority Date: 05/20/2014
  • Status: Active Grant
First Claim
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1. A method of determining whether a handheld communication device (HCD) is located inside a vehicle, comprising the steps of:

  • (a) receiving at a central facility a request to locate the HCD;

    (b) sending a message from the central facility to the vehicle with an instruction to begin listening for an acoustical signal that is generated by the HCD;

    (c) sending a message from the central facility to the HCD with an instruction to generate the acoustical signal;

    (d) receiving a response from the vehicle at the central facility that indicates whether or not the HCD generated the acoustical signal; and

    (e) transmitting a message from the central facility to a user of the HCD indicating whether the HCD is located inside of the vehicle based on whether or not the vehicle detected the acoustical signal.

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