Patent ID: 6836668
Filing Date: 2004-12-28
Classification: H04M

Abstract:
A portable communication apparatus comprising:a radio system for transmitting and receiving a voice message and a character message to and from a base station in a mobile communications system; a voice data processor for voice input and output; a character data processor for character data input and output; a first converter for converting voice data to character data; a second converter for converting character data to voice data; a first switch for selecting one of the first converter and the second converter to connect it to the radio system; a second switch for selecting one of the voice data processor and the character data processor to connect it to the selected one of the first converter and the second converter, depending on which of a first communication mode and a second communication mode is selected, wherein the first communication mode is such that a voice message received from the base station is converted into character data and a character message to be transmitted is converted into voice data, and the second communication mode is such that a character message received from the base station is converted into voice data and a voice message to be transmitted is converted into character data; and a controller controlling such that the first switch selects one of the first converter and the second converter depending on which of transmission and reception is performed in the selected one of the first communication mode and the second communication mode.