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Reduction of physiological metric error due to inertial cadence

  • US 10,349,844 B2
  • Filed: 12/24/2012
  • Issued: 07/16/2019
  • Est. Priority Date: 01/16/2012
  • Status: Active Grant
First Claim
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1. A heart rate monitor comprising:

  • a step rate sensor;

    a step rate processor configured to compute a step rate of a user based on a first waveform provided by the step rate sensor;

    a heart rate sensor;

    a heart rate processor configured to compute a first heart rate of the user based on a second waveform provided by the heart rate sensor; and

    a noise processor configured to reduce motion artifact noise in a heart rate output by the heart rate monitor by;

    computing a difference between the step rate and the first heart rate;

    computing a second heart rate as a function of the difference, said second heart rate being more accurate than said first heart rate due to the reduced motion artifact noise; and

    outputting the second heart rate.

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