COMMON HEADPHONE/MICROPHONE JACK MODE SWITCHING CONTROL APPARATUS IN A MULTI-MEDIA SYSTEM

摘要

a headphone/microphone jack insertion jack(30); a mode switching means(40) for the switching of the voice input function from a microphone in manual; a microphone signal processing part(50) outputting a muting control signal; a headphone signal muting part(60) to mute the audio signal of a channel; and a control part(70) to control the generating state of the microphone control signal.