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User interface devices and methods employing accelerometers

  • US 7,489,299 B2
  • Filed: 10/21/2004
  • Issued: 02/10/2009
  • Est. Priority Date: 10/23/2003
  • Status: Active Grant
First Claim
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1. A user interface device comprising:

  • a housing;

    at least four accelerometer devices arranged in a non-coplanar configuration in said housing, each of said at least four accelerometer devices outputting respective accelerometer data; and

    a processing unit in said housing comprising an algorithm that translates said accelerometer data from each of said at least four accelerometer devices into two-dimensional pointer movement,wherein said algorithm reduces error by bounding device movement based on user movement characteristics.

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