×

Verifying a written expression

  • US 20070146350A1
  • Filed: 11/20/2006
  • Published: 06/28/2007
  • Est. Priority Date: 03/18/2005
  • Status: Active Grant
First Claim
Patent Images

1. A system comprising:

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

    a sensor operable to acquire information corresponding to an environment of the manual device; and

    a verification module operable to determine a correspondence between a first aspect of the environment of the manual device and a second aspect of the environment of the manual device.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×