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US 2014/0278215 A1Published application
Method to reduce data rates and power consumption using device based attitude generation
AssigneeInvenSense, Inc.
InventorsWilliam Kerry Keal, James Lim, Sinan Karahan
Life of this patent
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Abstract
A method includes generating motion data by receiving a gyroscope data from a gyroscope sensor, performing integration using the gyroscope data and generating an integrated gyroscope data using a first processor. The method further includes receiving a data from one or more sensors, other than the gyroscope sensor, and performing sensor fusion using the integrated gyroscope data and the data to generate motion data using a second processor.
Claims26
A method of generating motion data comprising;
- receiving a gyroscope data from a gyroscope sensor;
- performing integration using the gyroscope data and generating an integrated gyroscope data using a first processor;
- receiving a data from one or more sensors, other than the gyroscope sensor;
- and
- performing sensor fusion using the integrated gyroscope data and the data to generate motion data using at least one second processor.
2 more elements
The method of generating motion data,
- receiving at least two consecutive gyroscope data from a gyroscope sensor;
- averaging the at least two consecutive gyroscope data to generate average data;
- calculating a cross product of the at least two consecutive gyroscope data to generate a cross product data;
- and
- performing integration over a time interval using the average data and the cross product data.
2 more elements
An apparatus for generating motion data comprising;
- a gyroscope sensor providing a gyroscope data, the gyroscope data having associated therewith a first data rate;
- one or more sensors operative to generate a data;
- an integrator responsive to the gyroscope data and operative to generate an integrated gyroscope data having associated therewith a second data rate;
- and
- a sensor fusion responsive to the integrated gyroscope data and the data and operative to generate motion data.
2 more elements
Dependencies are inferred from the claim text.