DUAL-MODE MOBILE TELEPHONE TERMINAL

摘要

A portable-type dual-mode mobile telephone terminal apparatus including a satellite wireless communication controller 2 for performing satellite communications via a communications satellite and a cellular wireless communication controller 8 for performing cellular communications via a ground station, and interfacing means 21 for making interfacing between the satellite wireless communication controller 2 and the LCD/keypad junction unit 14 of the cellular wireless communication controller 8. The interfacing means 21 performs software interfacing under the control of a program while address decoders and input and output ports perform electrical interfacing. <IMAGE>