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AssigneeNovatel Wireless, Inc.
InventorsCalvin Gerard French, Charles Chapman Moore
Estimating the term…
Systems and methods for determining whether a device has moved based upon sensed changes to the observed magnetic field are disclosed herein. Various embodiments function on the principle that it is highly unlikely that the observed magnetic field will be the same in any two given locations (at least, when the observed magnetic field is measured in three dimensions), and moreover, it is unlikely that the observed magnetic field will change if the device remains stationary. Various embodiments therefore include one or more magnetic sensors (e.g., a compass) disposed within the device. The device can be configured to periodically check its current reading of the observed magnetic field. If the device determines that its magnetic reading has changed relative to its last reading, a possible or actual relocation event can then be declared.
A method for electronically determining whether an entity has moved, the method comprising:
An electronic module for determining whether an entity has moved, the electronic module adapted to be electrically or physically coupled with the entity, the electronic module comprising:
A computer-readable medium containing instructions which, when executed by a computer, perform a process comprising:
Dependencies are inferred from the claim text.