A random access animation user interface environment referred to as interFACE enabling a user to create and control animated lip-synchronized images or objects utilizing a personal computer for use in the users programs and products. A real-time random-access interface driver (RAVE) together with a descriptive...http://www.google.es/patents/US5613056?utm_source=gb-gplus-sharePatente US5613056 - Advanced tools for speech synchronized animation