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Graphical user interface for large-scale, multi-user, multi-touch systems

  • US 8,181,122 B2
  • Filed: 07/30/2008
  • Issued: 05/15/2012
  • Est. Priority Date: 07/30/2007
  • Status: Active Grant
First Claim
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1. A method of invoking a control element on a display device, comprising the steps of:

  • generating by a user a stroke on a display device using a moving pointer element;

    ascertaining, during generation of the stroke, a shape of the stroke;

    determining whether the ascertained shape corresponds to a predetermined shape; and

    invoking a control element based on whether the stroke is ascertained to have a shape that corresponds to the predetermined shape,wherein invoking the control element includes;

    determining a display location for the control element as a function of the shape of the stroke; and

    displaying the control element at the determined display location on the display device.

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