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Universal pen with optical, position and/or motion sensors

  • US 7,396,178 B2
  • Filed: 02/16/2007
  • Issued: 07/08/2008
  • Est. Priority Date: 10/25/1999
  • Status: Expired due to Fees
First Claim
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1. A pen for marking a visible path on a surface, the pen comprising:

  • a marking device adapted to change one or more attributes of the visible path;

    a sensing device having;

    a position sensor for determining the position of the pen relative to the surface;

    a motion sensor for sensing the motion of the pen relative to the surface; and

    an optical sensor for sensing colors and or images on a surface; and

    , control means linked to the sensing device and the marking device;

    such that, the changes to the or each attribute are derived from at least one of;

    the relative position;

    the relative motion;

    colors; and

    images;

    sensed by the sensing device.

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