| 摘要 |
PROBLEM TO BE SOLVED: To provide a KARAOKE (orchestration without lyrics) device which can present various kinds of information without increasing the number of LEDs to be used. SOLUTION: A control part 101 is composed of a CPU, an ROM, an RAM and the like and controls each part on the basis of a control program stored in the ROM. A blue driving part 102 is a circuit for driving a blue LED 112 and a red driving part 103 is a circuit for driving a red LED 113 respectively. A detection part 104 detects a system state on the basis of a sensor installed at each part of a KARAOKE (orchestration without lyrics) device or the like and the control part 101 controls the blue driving part 102 and the red driving part 103 respectively on the basis of a detection result at the detection part 104. In this way, since it is constituted so that the blue driving part 102 and the red driving part 103 are installed and the blue LED 112 and the red LED 113 can be independently controlled, it is possible to have various kinds of light emission conditions. |
