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User controlled device for sending control signals to an electric appliance, in particular user controlled pointing device such as mouse or joystick, with 3D-motion detection

  • US 8,139,031 B2
  • Filed: 10/14/2003
  • Issued: 03/20/2012
  • Est. Priority Date: 10/14/2002
  • Status: Active Grant
First Claim
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1. A user controlled device, comprising:

  • a body that is movable into a plurality of positions of a three-dimensional space;

    a MEMS acceleration sensor coupled to the body and configured to detect movements of said body in first and second directions; and

    a microcontroller coupled to the MEMS acceleration sensor and configured to generate first control signals correlated to said positions, only while detected movements of said body are less than a speed of movement threshold and greater than an amplitude of movement threshold.

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