Patent Document ID: 7835879
Application ID: 12196513
Patent Status: 1

Claim One:
1. A method comprising: calibrating a magnetic sensor, the calibrating including: acquiring measurements from the magnetic sensor during a not pre-ordered movement; determining, using a processor, a plurality of sets of solutions for respective expected values of intensity of Earth's magnetic field, wherein each solution is defined by a plurality of parameters including at least one gain value for each detection axis of the magnetic sensor; determining, using the processor, a figure of merit, correlated to a calibration error, for each solution in the sets of solutions; selecting, using the processor, partial solutions in the sets of solutions, respectively, based on the figure of merit; defining, using the processor, a gain confidence interval; and selecting, using a processor, a calibration solution based on the figure of merit, from among the partial solutions having respective gain values all falling within the gain confidence interval.