SOFTWARE GYROSCOPE APPARATUS
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United States of America Patent
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Issued Date -
Jul 11, 2019
app pub date -
Feb 25, 2019
filing date -
Apr 8, 2016
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Abstract
A gyroscope apparatus for a device including an accelerometer and a magnetic component has a gravity vector generator connected to the accelerometer and receptive to acceleration readings therefrom. A magnetic component output generator is connected to the magnetic component and receptive to magnetic component readings. A sensor fusion engine is connected to the gravity vector generator and to the magnetic component output generator, with a gravity vector value and a magnetic field vector value at a first time instance being combined to represent a first orientation value. The gravity vector value and the magnetic field vector value at a second time instance are combined to represent a second orientation value. An orientation rate of change is derived from a difference between the first orientation value and the second orientation value.
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