| 摘要 |
[Problem] To provide a control method capable of, when generating tactile vibrations for a touch panel or the like by using a vibration actuator with a dynamic structure, improving the response speed as a vibratory device and reducing pop-noises when generating vibrations by means of a multifunctional vibration actuator. [Solution] The voltage of a signal to be input to the vibration actuator is boosted at the rise of the vibration, and a waveform of the opposite phase is input at the fall of the vibration. In addition, when a multifunctional vibration actuator is used, a sine-wave signal is utilized as a signal to be input to a coil in order to modulate the amplitude of the input sine-wave signal at a half-wave length from the beginning and at a point before the ending of the sine-wave signal. |
