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Determining positioning and/or relative movement of graphical-user interface element based on display images

  • US 7,420,540 B2
  • Filed: 12/01/2003
  • Issued: 09/02/2008
  • Est. Priority Date: 12/01/2003
  • Status: Expired due to Fees
First Claim
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1. A system for a computing device comprising:

  • an image-capturing mechanism capable of capturing images, each image including at least one corner of a display communicatively coupled to the computing device, the images including a first image including the at least one corner of the display and a second image including the at least one corner of the display; and

    ,a controller to determine at least one of positioning and relative movement for a graphical-user interface element displayed on the display, based on the images captured by the image-capturing mechanism, by determining;

    a first location of the at least one corner of the display in the first image, a second location of the at least one corner of the display in the second image, and an amount and a direction of movement of the at least one corner of the display from the first location in the first image to the second location in the second image.

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