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Apparatus and method for setting a gyroscrope zero point

  • US 20070136019A1
  • Filed: 10/12/2005
  • Published: 06/14/2007
  • Est. Priority Date: 10/12/2004
  • Status: Active Grant
First Claim
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1. An apparatus for setting a gyroscope zero point reference value, comprising:

  • a gyroscope for outputting a signal indicating angular velocity in the form of a voltage;

    a global positioning system (GPS) receiver for receiving a GPS signal;

    an analog-to-digital (A/D) converter for digitizing the voltage output from the gyroscope; and

    a controller for detecting a speed and a direction angle of a vehicle from the received GPS signal, determining if the vehicle is traveling in a straight line, and filtering the voltage output from the gyroscope to obtain a gyroscope zero point reference value if the vehicle is traveling in the straight line.

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