Data representing a visual form of data is received. The data including content data and format data indicating the manner in which the content data is to be visually represented. At least some of the content data is identified in accordance with a template, which includes one or more extraction instructions....http://www.google.fr/patents/US7082436?utm_source=gb-gplus-shareBrevet US7082436 - Storing and retrieving the visual form of data
