Accessory device, electronic musical instrument and teaching...
Apparatus and method for generating and presenting an audio visu
Apparatus and method for generating and presenting an audiovisua
Apparatus and method of playing karaoke accompaniment
Apparatus and system for generating sound based upon waveform da
Apparatus for displaying words in a karaoke system
Apparatus for reproducing video, audio, and accompanying charact
Audio visual information system
Audio visual karaoke system using audio cassette
Audio-visual dummy
Audio-visual, child-participating educational entertainment cent
Automatic performance apparatus and a karaoke apparatus
Backing chorus reproducing device in a karaoke device
Chair mountable educational device
Compact disk player-incorporated television receiver having a mo
Computer based training system
Computer system and karaoke system
Computer system and karaoke system
Computer-assisted audio/visual teaching system
Data transmission system