Fih (hong Kong) Limited

Yen-Kuang Lu

Mien-Chih Chen

The present disclosure provides an electronic device and a method for switching an audio input channel of the electronic device. The electronic device includes a headphone interface, a detection circuit, a signal processing unit, and a multiplexer. The headphone interface is operable to connect with an audio connector of a headphone. The detection circuit includes a headphone pin and a button pin. The detection circuit detects a level of a last pole of the audio connector, transfers the level of the last pole into a first level of the headphone pin and a second level of the button pin, and outputs the first level and the second level to the signal processing unit. The signal processing unit transmits commands to the multiplexer in response to the first level and the second level. The multiplexer switches the audio input channel of the electronic device based on the commands.

Electronic device and method thereof for switching audio input channel of the electronic device

An audio control system and method of an electronic device receives audio streams, but does not play the audio streams when one or more applications are in a mute mode. The system and method mixes the one or more of the audio streams if the volume of the one or more audio streams is not zero, and transmits the mixed audio streams to an audio processor of the electronic device.

Growing community of inventors

Taoyuan, Taiwan

Yen-Kuang Lu