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Including environmental information in a manual expression

  • US 20070120837A1
  • Filed: 11/20/2006
  • Published: 05/31/2007
  • Est. Priority Date: 03/18/2005
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a manual device including;

    a first writing element operable to discharge a first marking substance on a surface in response to a manual movement of the first writing element upon the surface;

    a second writing element operable to discharge a second marking substance on the surface in response to a controller; and

    the controller operable to encode information corresponding to an environment of the manual device by regulating a discharge of the second marking substance; and

    a sensor operable to acquire data indicative of an environment of the manual device.

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