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Movement monitoring systems and associated methods

  • US 8,849,606 B2
  • Filed: 05/14/2013
  • Issued: 09/30/2014
  • Est. Priority Date: 11/21/1994
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a motion sensor comprising multiple accelerometers and configured to be attached to a user for transport by the user while performing an athletic activity, to generate acceleration signals in response to user movement; and

    a processor configured for processing the acceleration signals to determine;

    (i) acceleration due to gravity;

    (ii) orientation of the multiple accelerometers from the acceleration due to gravity;

    (iii) a centripetal compensation;

    (iv) an earth rate compensation; and

    (v) a loft time from the acceleration signals, the orientation, the centripetal compensation and the earth rate compensation, wherein the multiple accelerometers comprise a pitch accelerometer, a yaw accelerometer, a roll accelerometer, a surge accelerometer, a heave accelerometer and a sway accelerometer.

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