An interactive system for providing multimedia data in response to interaction with lift-the-flap elements. The system may include a housing which forms a substantially planar surface configured to support at least one printed media sheet. The printed sheet may include at least one lift-the-flap element....http://www.google.fr/patents/US8041289?utm_source=gb-gplus-shareBrevet US8041289 - Interactive book with detection of lifted flaps
