Patent ID: 6122369
Filing Date: 2000-09-19
Classification: H04M

Abstract:
A communication process device of a portable phone comprising:an earphone-microphone having an earphone key, and a plug;a jack including a first terminal for transmitting a voice signal received from a called or calling party to said earphone-microphone upon insertion of said plug and a second terminal for transmitting a user's voice signal;an earphone-microphone detection unit for generating an earphone-microphone signal upon insertion of said plug;an earphone key sensing unit for generating an earphone key signal upon input of said earphone key;a micro processor for generating an external microphone selection signal or an external speaker driving signal by presence/absence of input of said earphone-microphone signal, connecting a speech path to said called or calling party if said earphone key signal is inputted upon sensing a ring, connecting a speech path of said called or calling party by dialing a number of said called party if said earphone key signal is inputted after input of said telephone number thereof, and blocking a tone if said earphone key signal is not inputted for given time;an audio processor for processing a voice upon calling by control of said micro processor; andan earphone-microphone selection unit for selecting said microphone of said earphone-microphone by said external microphone selection signal.