PURPOSE: mobile cleverly gateway system is provided to access to communication networks and passes through each communication system directly accessed to by way of a ferry crossing in the communication for checking receiving sensitivity with optimal receiving sensitivity. ;CONSTITUTION: communication unit (100) switch I/O interfaces (210) are to output channel and the strongest wireless modem situation of intensity. Communication unit offer has switched near field wireless modem. Input/output interface interface inputs communication unit and a CPU (200). Storage unit (220) stores the program and data. The CPU measures the communication unit of each communication control processor intensity. The CPU controls communication unit with the communication according to receiving intensity that switches over by communication channel by the CPU. ;The 2013 of copyright KIPO submissions;[Reference numerals] (100) communication unit; (210) input/output interface; (220) memory control unit; (300) external memory devices unit; (400) graphics processing unit; (500) audio data processing unit; (600) external memory unit; Bus (AA) system
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