The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2007
Filed:
Apr. 07, 2005
Philippe Fillatreau, Toulouse, FR;
Francois-xavier Bernard, Corronsac, FR;
Philippe Fillatreau, Toulouse, FR;
Francois-Xavier Bernard, Corronsac, FR;
Siemens VDO Automotive Corporation, Auburn Hills, MI (US);
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.