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Apparatus for controlling a screen pointer with a frame rate based on velocity

DC
  • US 6,995,748 B2
  • Filed: 01/07/2003
  • Issued: 02/07/2006
  • Est. Priority Date: 01/07/2003
  • Status: Expired due to Term
First Claim
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1. An apparatus for controlling the position of a screen pointer for an electronic device having a display screen, the apparatus comprising:

  • a light source for illuminating an imaging surface, thereby generating reflected images; and

    an optical motion sensor for generating digital images from the reflected images at a first frame rate, the motion sensor configured to generate movement data for controlling the position of a screen pointer based on the digital images, the movement data indicative of relative motion between the imaging surface and the apparatus, the motion sensor configured to modify the first frame rate to one of a plurality of alternate frame rates based on a current relative velocity between the imaging surface and the apparatus.

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