Patent ID: 7861932

Claim:
A system for printing and interacting with documents, the system comprising: (a) a computer system configured for: receiving a print request for printing a document; allocating a unique document identifier to said document in response to receiving said print request; and associating the document identifier with a description of the document; (b) a printer for printing the document containing human-readable content together with a coding pattern on a surface, said coding pattern encoding a plurality of locations on the surface and further identifying the document identifier; and (c) an optically imaging pen for sensing a portion of the coding pattern during handwritten input on the document and for generating a signal indicative of the unique document identifier and one or more positions of the pen relative to the document, wherein the computer system is further configured for: receiving the signal from the pen; determining the document identifier and one or more positions of the pen; retrieving the description associated with the document identifier; interpreting the one or more positions as a path of handwritten input; and updating the description with information corresponding to the handwritten input.