The music number is input through the panel switch arranged in the music accompanying apparatus. The modulated music number signal by the modulation-demodulation device is transmitted to the control apparatus through the coaxial cable. In the control apparatus, the music number data signal is received...http://www.google.es/patents/US5319452?utm_source=gb-gplus-sharePatente US5319452 - Control system for concentratively controlling a plurality of music accompanying apparatuses
Control system for concentratively controlling a plurality of music ...
