Patent ID: 7035596
Filing Date: 2006-04-25
Classification: H03J,H04B,H04M

Abstract:
1. A multi-mode cellular phone terminal comprising: radio communications means connected to an antenna for transmitting/receiving radio waves; signal processing means for transmitting/receiving a transmit/receive signal to/from said radio communication means; and communications control means for controlling said radio communications means and said signal processing means, said multi-mode cellular phone terminal supporting a plurality of communications systems, wherein said radio communications means is composed of hardware to be use in common by a plurality of communications systems, and said signal processing means is composed of hardware to execute signal processing supporting the plurality of communications systems, wherein said signal processing means can support different bit rates and modulation systems, and wherein connection of a voice or data communication is established by switching over and counting a plurality of timings to support the plurality of communications systems and maintaining the system timing synchronization supporting the plurality of communications systems.