Patent ID: 8060337

Claim:
A system for estimating motion parameters corresponding to a user, the system comprising: an inertial sensor operable to couple with the user for generation of signals corresponding to user motion; and a processing system in communication with the inertial sensor, the processing system operable toâ€” utilize a first inertial sensor signal from the inertial sensor to estimate a first user speed parameter and a first user cadence parameter, at least once, generate a user-specific speed-to-cadence motion model to correlate user speed to user cadence using at least the first user speed parameter and first user cadence parameter, utilize a second inertial sensor signal from the inertial sensor to estimate a second user cadence parameter, and at least once, utilize the motion model and the second user cadence parameter to estimate a second user speed parameter when the second user speed parameter cannot be directly estimated using the second inertial sensor signal.