A computer system for enabling handwritten note taking and retrieval utilizing at least one form printable on a surface, said form containing information relating to a notebook activity and including coded data indicative of an identity of said form and of at least one reference point of said form, the...http://www.google.se/patents/US7388985?utm_source=gb-gplus-sharePatent US7388985 - Computer system for notetaking using sensor for sensing coded data
