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Sensor system error reduction

  • US 7,555,398 B2
  • Filed: 04/13/2007
  • Issued: 06/30/2009
  • Est. Priority Date: 04/13/2006
  • Status: Active Grant
First Claim
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1. A method for sensing orientation comprising:

  • generating a first set of complementary signals each from a corresponding different measurement component, the complementary signals representing each of one or more characteristics, the complementary signals including related error components;

    determining a measurement value for each of the characteristics by combining the first set of complementary signals to reduce effects of the error components in the complementary signals; and

    generating a second set of complementary signals from a configurable measurement component, including generating one of a plurality of complementary signals in each of a corresponding plurality of configurations of the measurement component, wherein the plurality of complementary signals including at least two complementary signals corresponding to two opposite sensing orientations of the configurable measurement component;

    wherein generating the first set of complementary signals representing each of one or more characteristics includes generating signals with a substantially symmetric transfer function between the characteristic and the signal.

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