METHOD AND APPARATUS FOR ESTIMATING A MOTION PARAMETER
First Claim
1. A system for estimating motion parameters corresponding to a user, the system comprising:
- a receiver operable to receive a signal from an external source;
an inertial sensor operable to be coupled with the user and arbitrarily oriented relative to the direction of user motion for generation of a signal corresponding to user motion; and
a processing system in communication with the receiver and inertial sensor, the processing system operable toat least once, utilize the receiver signal to estimate a first parameter corresponding to a first motion parameter type,utilize the inertial sensor signal to estimate a second parameter corresponding to a second motion parameter type,at least once, generate a user-specific motion model to correlate the first parameter type and second parameter type using at least the first and second estimated parameters,utilize the inertial sensor signal to estimate a third parameter corresponding to the second parameter type, andat least once, utilize the motion model and the third parameter to estimate a fourth parameter corresponding to the first parameter type independent of the receiver signal.
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Accused Products
Abstract
A system for estimating motion parameters corresponding to a user. The system may generally include a receiver operable to receive a signal from an external source, an inertial sensor operable to be coupled with the user and arbitrarily oriented relative to the direction of user motion for generation of a signal corresponding to user motion, and a processing system in communication with the receiver and inertial sensor. The processing system can be operable to utilize the receiver signal to estimate a first parameter corresponding to a first motion parameter type, utilize the inertial sensor signal to estimate a second parameter corresponding to a second motion parameter type, generate a user-specific motion model to correlate the first parameter type and second parameter type using at least the first and second estimated parameters, utilize the inertial sensor signal to estimate a third parameter corresponding to the second parameter type, and utilize the motion model and the third parameter to estimate a fourth parameter corresponding to the first parameter type independent of the receiver signal.
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Citations
25 Claims
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1. A system for estimating motion parameters corresponding to a user, the system comprising:
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a receiver operable to receive a signal from an external source; an inertial sensor operable to be coupled with the user and arbitrarily oriented relative to the direction of user motion for generation of a signal corresponding to user motion; and a processing system in communication with the receiver and inertial sensor, the processing system operable to at least once, utilize the receiver signal to estimate a first parameter corresponding to a first motion parameter type, utilize the inertial sensor signal to estimate a second parameter corresponding to a second motion parameter type, at least once, generate a user-specific motion model to correlate the first parameter type and second parameter type using at least the first and second estimated parameters, utilize the inertial sensor signal to estimate a third parameter corresponding to the second parameter type, and at least once, utilize the motion model and the third parameter to estimate a fourth parameter corresponding to the first parameter type independent of the receiver signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for estimating motion parameters corresponding to a user, the system comprising:
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a Global Position System (GPS) receiver operable to receive GPS signals; an inertial sensor operable for coupling with the user and including one or more linear accelerometers arbitrarily oriented relative to the direction of user motion for generation of a signal corresponding to user motion; and a processing system in communication with the GPS receiver and inertial sensor, the processing system operable to at least once, utilize the GPS receiver signals to estimate a first user speed parameter, utilize the inertial sensor signal to estimate 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 estimated user speed and user cadence parameters, utilize the inertial sensor signal to estimate a second user cadence parameter, at least once, utilize the motion model and the second user cadence parameter to estimate a second user speed parameter independent of the GPS receiver signals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 23, 24, 25)
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18. A method for estimating motion parameters corresponding to a user, the method comprising:
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estimating a first motion parameter corresponding to a first motion parameter type utilizing a signal received from an external source; estimating a second motion parameter corresponding to a second motion parameter type utilizing a signal generated by an inertial sensor coupled to the user and arbitrarily oriented relative to the direction of user motion; generating a user-specific motion model to correlate the first parameter type and second parameter type using at least the first and second estimated parameters; estimating a third motion parameter corresponding to the second motion parameter type using utilizing the signal generated by the inertial sensor; and estimating a fourth parameter corresponding to the first parameter type using the motion model and the third motion parameter independent of the signal received from the external source. - View Dependent Claims (19, 20, 21, 22)
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Specification