Patent ID: 8608327
Filing Date: 2013-12-17
Classification: B60R,G01C

Abstract:
1. An automatic compass system for a vehicle, said automatic compass system comprising: compass circuitry, wherein said compass circuitry comprises a multi-axis compass sensor and associated circuitry; wherein said multi-axis compass sensor comprises magnetoresponsive sensing elements and wherein said magnetoresponsive sensing elements comprise at least first and second magnetoresponsive sensing elements; wherein said first and second magnetoresponsive sensing elements and at least a portion of said associated circuitry are established on a common silicon substrate using CMOS technology; wherein said associated circuitry comprises 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; and wherein said compass circuitry (i) determines a directional heading of a vehicle equipped with said automatic compass system responsive to a sensing of a magnetic field by said magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field.