Patent ID: 7149836

Claim:
A general packet radio service (GPRS) replaceable module communication device, comprising: a motherboard having GPRS components including at least a controlling multiplexer, a first bus connected to said controlling multiplexer, a second bus, a solid state disk (SSD) device bridge chip between said first and second buses, an electrically erasable programmable read only memory (EEPROM) interfaced with said controlling multiplexer, a third bus connected to said first bus, a GPRS module interfaced with said controlling multiplexer, a first connector and a switch chip for connecting either said second bus or said third bus to said first connector; and a daughter board having at least an EEPROM and a second connector for connecting to said first connector; wherein said motherboard determines to read control data stored in the EEPROM of said motherboard or control data stored in the EEPROM of said daughter board, and said switch chip controls transmission path of said control data of said daughter board to said controlling multiplexer.