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Pointing method, a device and system for the same

  • US 9,372,549 B2
  • Filed: 03/07/2012
  • Issued: 06/21/2016
  • Est. Priority Date: 03/14/2011
  • Status: Active Grant
First Claim
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1. A method to control a pointing device with an angular rate sensor (ars), said method comprising:

  • generating an ensemble of orthogonal unit vector associated angular rate signals by at least one angular rate sensor, each angular rate signal representing an angular rate in a dimensional space for a mutually orthogonal unit vector direction of said dimensional space;

    amplifying at least one of said angular rate signals with an amplification function that is a non-linear function of at least one of said angular rate signals;

    determining (x,y) coordinates of a cursor on a screen from said angular rate signals, one of said (x,y) coordinates corresponding to one of said angular rate signals;

    applying a decision criterion to determine a stationary state of the pointing device from said unit vector associated angular rate signals, andupdating, in response to determining the stationary state of the pointing device, a zero point offset of the angular rate sensor.

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