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Virtual gyroscope using dual magnetometers for electronic devices

  • US 9,683,845 B2
  • Filed: 09/26/2014
  • Issued: 06/20/2017
  • Est. Priority Date: 09/26/2014
  • Status: Active Grant
First Claim
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1. A virtual gyroscope for an electronic device, comprising:

  • a controller comprising a magnetometer unit comprising logic to;

    receive first magnetic response data from a first magnetic sensor and second magnetic response data from a second magnetic sensor displaced from the first magnetic sensor;

    generate a first response surface from the first magnetic response data and a second response surface from the second magnetic response data;

    generate a composite response surface representation from the first magnetic response data and the second magnetic response data;

    compare the first response surface and the second response surface to the composite response surface; and

    select one of the first magnetic response data or the second magnetic response data as an output of the magnetometer unit; and

    an accelerometer unit comprising logic, at least partially including hardware logic, to;

    generate orientation data for the electronic device; and

    a combiner unit comprising logic to;

    combine one of the first magnetic response data or the second magnetic response data with the orientation data from the accelerometer unit.

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