System and apparatus for a karaoke entertainment center
System and method for notifying a time limit and extension of us
System and method for remote education using a memory card
System for control of a video storage means by a programmed proc
Teaching method and system
Teleconferencing and teaching method and apparatus
Television receiver having video accompaniment functions
Training apparatus for singing
Training apparatus for singing
Variable types of sensory interaction for an on-line...
Video training system for simulataneously training a plurality o
Video/audio data supplying device