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Universal pen with image sensor

  • US 20050079004A1
  • Filed: 10/13/2004
  • Published: 04/14/2005
  • Est. Priority Date: 10/25/1999
  • Status: Active Grant
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 sensing images, colors or both; and

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

    such that, the changes to the or each attribute are derived from colors or images sensed by the sensing device.

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