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Low power acoustic apparatus and method of operation

  • US 9,799,215 B2
  • Filed: 10/01/2015
  • Issued: 10/24/2017
  • Est. Priority Date: 10/02/2014
  • Status: Active Grant
First Claim
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1. A method of operating an acoustic system, the method comprising:

  • receiving an ultrasonic sound signal at a microphone;

    pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal;

    when the pattern matching indicates the received ultrasonic sound signal is the desired ultrasonic sound signal, transmitting a signal to at least one electronic component;

    when the pattern matching indicates the received ultrasonic sound signal is not the desired ultrasonic sound signal, operating the microphone in a low power state of operation.

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