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Systems and methods of reducing a component of a signal caused by vibration

  • US 7,952,347 B2
  • Filed: 07/29/2010
  • Issued: 05/31/2011
  • Est. Priority Date: 07/19/2007
  • Status: Active Grant
First Claim
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1. A vibration detection circuit, comprising:

  • an accelerometer configured to generate one or more signals, each signal indicative of movement along an axis;

    a combining filter configured to filter a component of the one or more signals not associated with movement and to combine the components of the one or more signals indicative of movement to create a combined signal;

    an amplifier configured to amplify the combined signal and create an amplified signal; and

    an analog to digital converter configured to convert the amplified signal into a digital value.

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