An electronic book display device capable of attaching the mark to the optional element by just conducting the simple operation like actual books. Since the display control means 28 is provided for determining the type of mark to emphasize the specifying element according to the position specified in...http://www.google.fr/patents/US7165217?utm_source=gb-gplus-shareBrevet US7165217 - Electronic book display device and its display method
Electronic book display device and its display method