Real-time dynamic tracking of bias
First Claim
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1. A 3-D pointing device for estimating bias associated with a sensor comprising:
- said sensor; and
a processor for estimating said bias associated with said sensor using at least a first bias estimating technique to generate a first bias estimate and a second bias estimating technique to generate a second bias estimate.
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Abstract
A bias value associated with a sensor, e.g., a time-varying, non-zero value which is output from a sensor when it is motionless, is estimated using at least two, different bias estimating techniques. A resultant combined or selected bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.
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20 Claims
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1. A 3-D pointing device for estimating bias associated with a sensor comprising:
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said sensor; and a processor for estimating said bias associated with said sensor using at least a first bias estimating technique to generate a first bias estimate and a second bias estimating technique to generate a second bias estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification