Chest strap having human activity monitoring device

  • US 7,753,861 B1
  • Filed: 04/04/2007
  • Issued: 07/13/2010
  • Est. Priority Date: 04/04/2007
  • Status: Active Grant
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First Claim
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1. A machine-accessible medium including data that, when accessed by a machine, cause the machine to perform a method comprising:

  • monitoring accelerations from an inertial sensor disposed in a chest strap, the inertial sensor having a plurality of axes;

    processing the accelerations to determine one or more user activity statistics, the processing comprising;

    creating a rolling average of accelerations for each of the plurality of axes;

    comparing a value of the rolling average of accelerations for a first axis to values of the rolling averages of accelerations for one or more additional axes of the plurality of axes; and

    assigning a dominant axis based upon relative values of the rolling averages of accelerations;

    formatting the user activity statistics to a generic format understandable by a plurality of devices; and

    transmitting the generically formatted user activity statistics from the chest strap to an electronic device.

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