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Method and Apparatus for Detecting Object Orientation and Position

  • US 20070270722A1
  • Filed: 02/26/2007
  • Published: 11/22/2007
  • Est. Priority Date: 07/12/2005
  • Status: Active Grant
First Claim
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1. A position and orientation detecting system to measure movement of a limb, comprising:

  • a) at least one magnetic field source configured to be located external to the limb and to generate a magnetic field;

    b) a plurality of physically separated, non-orthogonally oriented capsules configured to be implanted within the limb, each having a sensor configured to sense the magnetic field and to telemetrically transmit a signal corresponding to the sensed magnetic field; and

    c) a controller configured to receive the transmitted signals, to compute the position and orientation of the limb based on the transmitted signals, and to generate information useful in controlling movement of the limb based on the transmitted signals.

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