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Acoustic-based temperature sensing in telephones

  • US 20050244014A1
  • Filed: 04/30/2004
  • Published: 11/03/2005
  • Est. Priority Date: 04/30/2004
  • Status: Abandoned Application
First Claim
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1. A communication device, comprising:

  • a speaker;

    a microphone disposed at a distance from said speaker; and

    a processor connected to said speaker and said microphone and operatively arranged for determining ambient temperature by causing a test sound to be played on said speaker, measuring a transit time of the test sound from said speaker to said microphone, and calculating an ambient temperature of an environment in which the communication device is disposed from the measured transit time.

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