Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Francois-Xavier Bernard0
Philippe Fillatreau0
Date of Patent
June 5, 2007
0Patent Application Number
111012810
Date Filed
April 7, 2005
0Patent Primary Examiner
Patent abstract
An example method for controlling an electronic compass includes determining compass tracking angles in a coordinate system for magnetic field data points that correspond to magnetic field sensor signals produced as a vehicle rotates relative to a surrounding magnetic field. The magnetic field data points produce an expected curve in the coordinate system. The rotation of the vehicle is tracked relative to the surrounding magnetic field based upon the compass tracking angles and whether the vehicle has rotated a desired amount is determined based at least partially upon the expected curve and the compass tracking angles.
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