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RESPIRATION RATE DETERMINING APPARATUS, RESPIRATION RATE DETERMINING METHOD, AND PROGRAM RECORDING MEDIUM

  • US 20180035916A1
  • Filed: 09/27/2017
  • Published: 02/08/2018
  • Est. Priority Date: 01/29/2016
  • Status: Active Grant
First Claim
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1. A respiration rate determining apparatus, comprising:

  • an obtaining unit which obtains accelerations in directions that are mutually different, the accelerations being obtained by an acceleration sensor measuring a body movement by respiration of a user;

    a transform unit which transforms the accelerations in the directions obtained by the obtaining unit, into spectrum information items in a frequency domain;

    a phase removing unit which transforms the spectrum information items into amplitude spectra by removing phase information from the spectrum information items;

    a peak detector which adds up the amplitude spectra and detects a peak frequency based on an amplitude spectrum resulting from the adding up, the peak frequency indicating a respiratory component; and

    a respiration rate calculator which calculates a respiration rate using the peak frequency.

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