Audio device and portable electronic device

摘要

A portable electronic device includes a built-in speaker, an interface configured to connect to an external audio device to output sound, a switch, and a main microchip. The main microchip detects whether the external audio device is connected to the portable electronic device. When the external audio device is connected to the portable electronic device, the main microchip selects the audio device to output sound. When the audio device is not connected to the portable electronic device, the main microchip selects the built-in speaker to output the audio signals.

主权项

1. A portable electronic device, comprising:
a built-in speaker configured to output audio signals; an interface configured to connect to an audio device to output the audio signals; a switch; a main microchip detecting whether an audio device is connected to the portable electronic device; when an audio device is connected to the portable electronic device, the main microchip selecting the audio device to output the audio signals; when the audio device is not connected to the portable electronic device, the main microchip selecting the built-in speaker to output the audio signals; and an audio amplifier, wherein the audio amplifier is connected to the switch and the main microchip, the audio amplifier outputs the audio signals to the switch under the control of the main microchip.