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Snore detecting method and apparatus

  • US 20030066529A1
  • Filed: 10/07/2002
  • Published: 04/10/2003
  • Est. Priority Date: 10/10/2001
  • Status: Active Grant
First Claim
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1. A method of detecting a snore in a patient comprising the steps of:

  • (a) providing a pressure support system including a pressure sensor;

    (b) monitoring a pressure within the pressure support system indicative of a pressure at an airway of a patient and outputting a pressure signal indicative of the pressure;

    (c) filtering the pressure signal to obtain a filtered pressure signal that contains frequencies in a specified frequency range;

    (d) generating a threshold value;

    (e) comparing the filtered pressure signal to the threshold value;

    (f) detecting a first vibration responsive to the filtered pressure signal crossing the threshold value;

    (g) determining a benchmark period for the first vibration;

    , (h) detecting a second vibration when a second, subsequent vibration in the filtered pressure signal exceeds the threshold value;

    (i) determining a second period for the second, subsequent vibration;

    (j) comparing the second period to the benchmark period to determine if the periods are consistent; and

    (k) declaring a snore responsive to the second period being consistent with the benchmark period.

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