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:
Dec. 17, 2013
Filed:
Jun. 17, 2013
Donnelly Corporation, Holland, MI (US);
Rodney K. Blank, Zeeland, MI (US);
Kenneth L. Schierbeek, Zeeland, MI (US);
Niall R. Lynam, Holland, MI (US);
Donnelly Corporation, Holland, MI (US);
Abstract
An automatic compass system for a vehicle includes compass circuitry having a multi-axis compass sensor and associated circuitry. The multi-axis compass sensor includes first and second magnetoresponsive sensing elements. The magnetoresponsive sensing elements and at least a portion of the associated circuitry are established on a common silicon substrate using CMOS technology. The associated circuitry includes at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver. The compass circuitry (i) determines a directional heading of the equipped vehicle responsive to a sensing of a magnetic field by the magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field. Responsive to the compass circuitry, an information display of the equipped vehicle may display the directional heading of the equipped vehicle.