| 摘要 |
An audio device protection system for use in an electronic device electrically connecting to an audio device is disclosed. The electronic device outputs an audio signal, a power on/off signal, and a trigger signal. The audio device protection system includes a switching unit electrically connected to the audio signal and the audio device and a control unit electrically connected to the trigger signal and the switching unit. The control unit outputs, upon receipt of the trigger signal, a control signal to control electrical connection/disconnection of the audio signal to/from the audio device by the switching unit, thus controlling timing of delivery of the electronic device-outputted audio signal to the audio device during a startup/shutdown procedure of the electronic device. Accordingly, switching on/off a power of the electronic device does not generate audio noise which may otherwise instantaneously trigger or shut down the audio device to the detriment thereof.
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