A host apparatus stores all of music-piece files and information files, and also stores lists information files (information file lists) required for a plurality of areas where communication karaoke apparatuses are located. When music-piece files are downloaded to a communication karaoke ...http://www.google.fr/patents/US5824934?utm_source=gb-gplus-shareBrevet US5824934 - Karaoke system including host apparatus that downloads information file based on list of necessary information files
Karaoke system including host apparatus that downloads information file ...
