METHOD FOR RECOGNIZING EAR PHONE IN PORTABLE TERMINAL AND APPARATUS THEREOF

摘要

Disclosed is an apparatus for recognizing an earphone of a portable terminal that includes an interface unit which is connected to the earphone; a controller which performs a switch operation by determining whether a switch key of the earphone is inputted, according to a change of a current of a first port and a voltage of a second port, when the connection of the earphone is sensed; and an audio processing unit that outputs an audio signal to the earphone under the control of the controller.