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Systems and methods for identifying patient distress based on a sound signal

  • US 9,236,046 B2
  • Filed: 03/14/2013
  • Issued: 01/12/2016
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a sound signal from a sensor that senses sound from a patient, the sound signal indicative of human non-speech vocalization;

    computing, with processing equipment, one or more metrics based on the sound signal;

    determining, with the processing equipment, a classification of the sound signal based on the one or more metrics and on a classifier, wherein the classifier is trained based on signal characteristics that correspond to patient distress;

    determining, with the processing equipment, whether the sound signal corresponds to patient distress based on the classification; and

    outputting an indication of patient distress when patient distress is determined to be present.

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