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OPPORTUNISTIC MAGNETOMETER CALIBRATION

  • US 20200132783A1
  • Filed: 10/28/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/30/2018
  • Status: Active Application
First Claim
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1. A mobile device comprising:

  • a magnetometer configured to sense a magnetic field and to provide indications of the magnetic field; and

    a processor communicatively coupled to the magnetometer and configured to;

    determine an occurrence of a trigger condition associated with imminent motion of the mobile device, present motion of the mobile device, or decalibration of the magnetometer;

    respond to determining the occurrence of the trigger condition by causing the magnetometer to sense the magnetic field and to provide the indications of the magnetic field; and

    determine at least one bias of the magnetometer using the indications of the magnetic field.

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