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Interactive system including substrate and electronic pen with retractable nib

  • US 8,094,325 B2
  • Filed: 05/26/2011
  • Issued: 01/10/2012
  • Est. Priority Date: 05/25/1999
  • Status: Expired due to Fees
First Claim
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1. An interactive system comprising:

  • a printed substrate having coded data disposed thereon; and

    an electronic pen for interacting with the substrate, said pen comprising;

    an infrared light source for illuminating an area of the substrate;

    an image sensor for sensing at least some of the coded data illuminated in said area when the pen is used to interact with the substrate;

    a cartridge having a nib for contacting said substrate;

    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 substrate by said nib when said nib is in said extended position; and

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

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