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US 8,849,606 B2Granted
Movement monitoring systems and associated methods
AssigneeNIKE, Inc.
InventorsPeter Flentov, Dennis M. Darcy, Curtis A. Vock
Life of this patent
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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.
Claims17
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.
6 more elements
A method comprising:
- (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.
5 more elements
Dependencies are inferred from the claim text.