| 摘要 |
PURPOSE: To effectively use a space by displaying two pieces of information on one place by arranging an independent light emitting element at the back of each character and providing a light emission control circuit which performs the emission/light-out of each element. CONSTITUTION: A KARAOKE control part 11 reads out a music signal and lyric data accumulated in a memory device 9, and reproduces them by a reproducing device 24. A CPU 5, when receiving an input signal from a set key 22 on a ten key switch 8, recognizes the reservation of a music, and selects a reserved music in a ROM 2, and outputs a lightening pulse to a LED driver 7. The LED driver 7 emits a light emitting diode 19 according to the lightening pulse. The CPU 5, when receiving the input signal from a performance start key 25, confirms transfer to a performance operation, and selects the music being played, therefore, a light-out pulse is outputted to the LED driver 7. The LED driver 7 puts off the light emitting diode 19 according to the light-out pulse. |
