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ELECTRONIC PEN WITH RETRACTION MECHANISM AND FORCE SENSOR

  • US 20090095543A1
  • Filed: 12/22/2008
  • Published: 04/16/2009
  • Est. Priority Date: 05/25/1999
  • Status: Active Grant
First Claim
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1. An electronic pen for interacting with a substrate having coded data disposed thereon, the pen comprising:

  • an image sensor for sensing at least some of the coded data when the pen is used to interact with the surface;

    a cartridge having a nib for contacting said surface;

    a retraction mechanism for slidably moving said cartridge between a retracted position wherein said nib is retracted within a body of said pen and an extended position wherein said nib protrudes from said body;

    a force sensor cooperating with said retraction mechanism, said force sensor being configured to sense a force applied to said surface by said nib when said nib is in said extended position;

    a processor configured to generate, using at least some of the sensed coded data, indicating data indicative of the interaction with the substrate; and

    communication means for communicating the indicating data to a computer system, wherein said image sensor is configured to sense said coded data only when said force sensor detects that said nib is in contact with said substrate.

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