(12) United States Patent ao) Patent No.: Us 7,450,264 B2
Silverbrook et al. (45) Date of Patent: *Nov. 11,2008
A method of digitally processing and printing a page of an interactive document is provided. The printed page comprises printed graphical information and printed coded data, the coded data being indicative of a page identity and of a plurality of locations on the page. The method comprises the steps of: (a) determining a unique page identity for the page in a computer system; (b) determining a page description for the page in the computer system, the page description comprising a description of the graphical information and a description of an interactive element on the page; (c) associating the page identity with the description of the interactive element; (d) generating first dot data for the coded data using the page identity; (e) generating second dot data for the graphical information using the page description; and (f) printing said page onto a substrate using a printer. At least steps (a) and (b) are performed before printing the page.
13 Claims, 40 Drawing Sheets