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Electronic whistle sensor

  • US 9,396,628 B1
  • Filed: 12/27/2014
  • Issued: 07/19/2016
  • Est. Priority Date: 06/25/2014
  • Status: Active Grant
First Claim
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1. A system that comprises:

  • a whistle that produces a sound;

    a power source;

    a detection circuit connected to the power source and physically attached to said whistle, said circuit comprising a MEMS (microelectromechanical system) based accelerometer;

    wherein said system is configured such that the accelerometer detects the resonant vibration of the whistle and then causes the detection circuit to produce an electronic signal when the whistle produces a sound.

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