Patenty US005737247 Bicycle accessory with voice synthesis capability US005531600 Interactive audio-visual work US005437552 Interactive audio-visual work US004875096 Encoding of audio and digital signals in a video signal US004846693 Video based instructional and entertainment system using animated figure US004786967 Interactive video apparatus with audio and video branching US004654700 Optical decoder US0RE032305 Method of employing a television receiver for active participation US0RE032282 Television gaming apparatus US004571640 Video disc program branching system US004567532 Selectable view video record/playback system US004540176 Microprocessor interface device US004496158 Electro-optical sensor for color television games and training systems US004395045 Television precision target shooting apparatus and method US004359223 Interactive video playback system US004357014 Interactive game and control therefor US004355805 Manually programmable video gaming system US004346407 Apparatus for synchronization of a source of computer controlled video to another video source US004342454 Method and apparatus for instant replay and other capabilities for microprocessor-controlled video games US004310854 Television captioning system US004240638 Microprocessor controlled game apparatus US004216965 Microcomputer