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Proximity detecting apparatus and method based on audio signals

  • US 9,097,795 B2
  • Filed: 11/12/2010
  • Issued: 08/04/2015
  • Est. Priority Date: 11/12/2010
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one processor; and

    at least one memory including computer code, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus to;

    transmit from a first speaker a first audio signal;

    transmit from a second speaker a second audio signal;

    receive at least one audio signal using at least one microphone, wherein the at least one audio signal comprises a combination of a direct pathway and a reflected pathway first and second audio signals;

    determine a distance value based on the received at least one audio signal; and

    determine a presence of an object from the distance value.

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