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发明授权
US07006641B1 Driving circuit, electro-mechanical-acoustic transducer, and portable terminal apparatus 有权
驱动电路，机电声换能器和便携式终端装置

Driving circuit, electro-mechanical-acoustic transducer, and portable terminal apparatus
摘要：
A circuit of the present invention is a driving circuit for driving a vibrator having a mechanical vibration system which resonates at a resonance frequency. The driving circuit outputs to the vibrator at least two signals of different frequencies which are included in a frequency range including the resonance frequency. The vibrator has a function of converting an electric signal into at least one of a sound and a vibration.
摘要（中）：

本发明的电路是用于驱动具有谐振频率谐振的机械振动系统的振动器的驱动电路。 驱动电路向振动器输出包括在包括谐振频率的频率范围内的不同频率的至少两个信号。 振动器具有将电信号转换成声音和振动中的至少一个的功能。

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