MOVEMENT MONITORING SYSTEMS AND ASSOCIATED METHODS
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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Abstract
Systems and methods are disclosed that monitor movement of a person, or of a vehicle ridden by the person, to determine speed, distance traveled and/or airtime of the person or vehicle. Accelerometer-based sensors, pressure sensors or Doppler sensors may be employed in these systems and methods. A liquid crystal display may attach to the person to display speed, distance traveled and/or airtime.
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Citations
17 Claims
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1. An apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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(a) generating acceleration signals with multiple accelerometers attached to a human; (b) processing the acceleration signals at a processor to determine acceleration due to gravity; (c) determining centripetal compensation; (d) determining earth rate compensation; (e) determining an orientation of at least one of the multiple accelerometers; (f) determining a speed adjustment component from the orientation determined in (e); and (g) processing the acceleration signals, the speed adjustment component, the centripetal compensation and the earth rate compensation at the processor to determine a loft time of the human, wherein the multiple accelerometers comprise a pitch accelerometer, a yaw accelerometer, a roll accelerometer, a surge accelerometer, a heave accelerometer and a sway accelerometer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification