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Physiological acoustic monitoring system

  • US 9,370,335 B2
  • Filed: 10/23/2014
  • Issued: 06/21/2016
  • Est. Priority Date: 10/15/2009
  • Status: Active Grant
First Claim
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1. An acoustic monitoring system comprising:

  • an acoustic sensor configured to detect heart sounds from a patient;

    an analog to digital converter configured to digitize an acoustic sensor signal generated from the acoustic sensor corresponding to the detected heart sounds from the patient;

    a decimation filter and mixer configured to reduce the data rate of the digitized acoustic sensor signal and output a digitized raw audio signal; and

    a hardware processor configured to;

    receive the digitized raw audio signal generated from the acoustic sensor corresponding to the detected heart sounds from the patient;

    detect an envelope in the received acoustic sensor signal;

    convert the envelope into a tag representing idealized envelope;

    determine a heart rate from the digitized raw audio signal; and

    transmit the heart rate and the tag over a data channel in lieu of the digitized raw audio signal.

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