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Optical tracker for tracking surface-independent movements

  • US 20070103441A1
  • Filed: 11/08/2005
  • Published: 05/10/2007
  • Est. Priority Date: 11/08/2005
  • Status: Active Grant
First Claim
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1. A device comprising:

  • optical components that are operable to sense surface-independent movement of a pointing object within a substantially planar region adjacent to the device, the optical components including at least one image sensor that is operable to output pixel values corresponding to the movement; and

    tracking logic that is operable to determine coordinates associated with the movement of the pointing object, based on the pixel values, and provide the coordinates for translation into an action on a display.

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