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Biological sound analyzing apparatus, biological sound analyzing method, computer program, and recording medium

  • US 10,441,243 B2
  • Filed: 03/28/2014
  • Issued: 10/15/2019
  • Est. Priority Date: 03/28/2014
  • Status: Active Grant
First Claim
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1. A biological sound analyzing apparatus comprising:

  • a biological sound sensor that obtains signals of biological sounds;

    a frequency analyzer operatively connected to an output of the biological sound sensor and configured to obtain information regarding frequency corresponding to predetermined characteristics of a spectrum of biological sounds based on the signals of biological sounds obtained by the biological sound sensor;

    a shifter operatively connected to an output of the frequency analyzer and configured to shift a plurality of reference spectrums, which reference spectrums are references for classifying the biological sounds contained in the spectrum of biological sounds, the shifting being in accordance with the information regarding the frequency corresponding to predetermined characteristics of the spectrum of biological sounds, and configured to thereby obtain frequency-shifted reference spectrums;

    a calculator that calculates a ratio of each of a plurality of reference spectrums included in the spectrum of biological sounds based on the spectrum of the biological sounds as obtained from the frequency analyzer and the frequency-shifted reference spectrums; and

    an output device configured to output the calculated ratio of each of the plurality of reference spectrums.

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