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Digitizing system having printed base, imaging pen and relay device

  • US 7,934,656 B2
  • Filed: 10/14/2010
  • Issued: 05/03/2011
  • Est. Priority Date: 10/25/1999
  • Status: Expired due to Fees
First Claim
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1. A system for digitizing a freehand graphic, the system comprising:

  • (A) a base including;

    a surface;

    a position-coding pattern printed on the surface and detectable by an optical sensor;

    a first area of the surface; and

    a second area of the surface;

    (B) an optically imaging pen comprising;

    the optical sensor for detecting a position in the position-coding pattern; and

    communication means for wirelessly communicating interaction data to a relay device, said interaction data identifying the detected position;

    (C) the relay device, said relay device being configured for communicating the interaction data to a processor,wherein said processor is adapted to perform the following actions;

    determine if the detected position is in the first area or the second area;

    if the detected position is in the first area of the surface, then interpreting the position as a point in the freehand graphic; and

    if the detected position is in the second area of the surface, then interpreting the position as a selection of a property for the freehand graphic.

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