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DEVICE AND METHOD FOR DETECTING OCCURRENCE OF WHEEZE

  • US 20130259240A1
  • Filed: 03/29/2012
  • Published: 10/03/2013
  • Est. Priority Date: 03/29/2012
  • Status: Active Grant
First Claim
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1. A device for detecting occurrence of wheeze in a lung sound, said device comprising:

  • an acoustic processing unit for obtaining a lung sound and for generating a raw sound signal in time domain accordingly;

    a filtering unit for filtering the raw sound signal to obtain a filtered signal within a specific frequency bandwidth, the filtered signal having a plurality of sections with respect to the time domain; and

    an identifying unit for computing an energy value of each of the sections of the filtered signal, and for determining that a wheeze occurs in the lung sound when the energy values of a part of the sections are larger than a predetermined value and duration of said part of the sections is longer than a predetermined observation time in the time domain.

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