METHOD AND APPARATUS FOR ESTIMATING A MOTION PARAMETER
First Claim
Patent Images
1. A method of estimating stride speed corresponding to a subject element, the method comprising:
- acquiring an acceleration measurement using one or more accelerometers;
determining an acceleration magnitude and a stride duration from the acceleration measurement using a processing system;
generating a motion parameter metric with the processing system by using the stride duration and acceleration magnitude, wherein the motion parameter metric is at least partially generated by performing an integration of a function of the acceleration magnitude; and
estimating a first value which is function of stride speed with the processing system by using the motion parameter metric and outputting the estimated first value and/or a second value derived from the estimated first value.
0 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for estimating a motion parameter corresponding to a subject element employs one or more accelerometers operable to measure accelerations and a processing system operable to generate a motion parameter metric utilizing the acceleration measurements and estimate the motion parameter using the motion parameter metric.
111 Citations
20 Claims
-
1. A method of estimating stride speed corresponding to a subject element, the method comprising:
-
acquiring an acceleration measurement using one or more accelerometers; determining an acceleration magnitude and a stride duration from the acceleration measurement using a processing system; generating a motion parameter metric with the processing system by using the stride duration and acceleration magnitude, wherein the motion parameter metric is at least partially generated by performing an integration of a function of the acceleration magnitude; and estimating a first value which is function of stride speed with the processing system by using the motion parameter metric and outputting the estimated first value and/or a second value derived from the estimated first value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An apparatus operable to estimate stride speed corresponding to a subject element, the apparatus comprising:
-
a plurality of accelerometers each operable to provide a signal corresponding to an acceleration measurement, at least two of the accelerometers being adapted to measure accelerations in two directions separated by an angle greater than zero degrees; and a processing system coupled with one or more of the accelerometers, the processing system operable to; calculate a stride duration and an acceleration magnitude using at least one of the acceleration measurements; generate a motion parameter metric using the stride duration and acceleration magnitude, wherein the motion parameter metric is at least partially generated by performing an integration of a function of the acceleration magnitude; estimate a first value which is a function of stride speed using the motion parameter metric; and output the estimated first value and/or a value derived from the estimated first value to the subject element. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification