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Eye controllable screen pointer

  • US 6,373,961 B1
  • Filed: 09/14/1998
  • Issued: 04/16/2002
  • Est. Priority Date: 03/26/1996
  • Status: Expired due to Term
First Claim
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1. An eye controllable pointer system for determining a point of true gaze of a user with respect to a screen, comprising:

  • a screen beacon including a plurality of light sources, the light sources fixed with respect to the screen and arranged noncollinearly;

    a helmet secured to the head of the user;

    a screen beacon tracking camera mounted on the helmet and situated to receive an image of the plurality of light sources, the screen beacon tracking camera producing a beacon tracking signal corresponding to the image received by the beacon tracking camera;

    an eye gaze tracker mounted on the helmet, the eye gaze tracker detecting a gaze direction of at least one eye of the user, and producing an eye tracking signal corresponding to the detected gaze direction; and

    a processor that receives the beacon tracking signal and the eye tracking signal and calculates a point of computed gaze of the user with respect to the screen as a function of the eye tracking signal and the beacon tracking signal.

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