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Display location calculation means

  • US 7,161,596 B2
  • Filed: 12/20/2002
  • Issued: 01/09/2007
  • Est. Priority Date: 12/21/2001
  • Status: Active Grant
First Claim
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1. Display location calculation means comprising:

  • a display generator arranged in operation to generate a display in response to display data generated by a machine;

    a pointer device carrying a camera operable to generate image data representing at least part of the scene within the field of view of the camera, which part, includes an image of at least a portion of the display;

    computation means arranged in operation to;

    receive said image data;

    receive said display data;

    calculate, from said image data and said display data, the position and/or orientation of said pointer device relative to said display;

    calculate a display location from said calculated position and/or orientation.

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