| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrator operation circuit capable of operating a vibrator rich in many states varying corresponding to music tunes. SOLUTION: A sequencer 11 produces a sound source operation data based on the music sound data and outputs the data to a sound source 12 and at the same time, extracts vibrator operation data inserted into the music sound data and outputs the data to a vibration pattern producing circuit 13. The vibration pattern producing circuit 13 produces operation signals A, B, C, and G corresponding to the vibrator operation data transmitted from the sequencer 11 and outputs the data to FETs 15 to 18. By the operation signals, turn on/off of the FETs 15 to 18 is controlled. An electric current of a transistor 20 is changed in accordance with on/off of the FETs 15 to 18, and the rotating speed of the vibrator 21 is variably changed thereby. COPYRIGHT: (C)2004,JPO&NCIPI
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