VIBRATION CONTROL APPARATUS OF VIBRATION SPEAKER

摘要

PURPOSE: A vibration control apparatus of vibration speaker is provided, which prevents vibration from being generated when a low tone is generated. CONSTITUTION: A signal generator(102) generates a signal of a voice frequency or a vibration frequency and outputs the signal via output terminals(AUDIO+,AUDIO-) of inverse phases. An analog switch(104) is connected between the output terminals of the signal generator and a terminal(MOTOR+) of a speaker(100), and connects either one of the output terminals of the signal generator to the terminal of the speaker. A control part(106) controls the switch so that the output terminal(AUDIO+) of the signal generator to the terminal of the speaker, when a voice frequency signal is generated, and such that the output terminal(AUDIO-) of the signal generator to the terminal of the speaker, when a vibration frequency signal is generated.