MEASURING QUALITY EVALUATING DEVICE, METHOD, AND PROGRAM
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United States of America Patent
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Issued Date -
Oct 24, 2024
app pub date -
Oct 5, 2021
filing date -
Oct 5, 2021
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Abstract
A first arithmetic circuit detects R waves from an electrocardiogram waveform measured by electrocardiograph and obtains an interval (heartbeat interval: RRI) between adjacent R waves. A second arithmetic circuit obtains an instantaneous heart rate for each beat indicated by an R wave from the interval obtained by the first arithmetic circuit. A third arithmetic circuit obtains a smoothed heart rate obtained by smoothing the instantaneous heart rate for each beat calculated by the second arithmetic circuit. A fourth arithmetic circuit obtains a signal-to-noise ratio of the electrocardiogram waveform using the instantaneous heart rate and the smoothed heart rate.
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