| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile communication terminal for utilizing two kinds of frequency bands and including four antennas, two of which can utilize one kind of frequency band and the other two of which can utilize the other kind of the frequency band that partly modifies a program and uses the partly modified program so as to prevent switch-over mistakes from taking place among the antennas, when one of the antennas is reduced for the purpose of reducing the mounting area. SOLUTION: When the antennas are switched-over, the output contents of an antenna selection signal for designating switch-over destination are changed depending on the antennas of the switch-over source and the switch-over destination. Thus, the mobile communication terminal can cope with the reduction with only one antenna, by partly modifying the program for a control means for controlling the revision and installation of a logic gate so as to eliminate the need for a large scale in design change. COPYRIGHT: (C)2007,JPO&INPIT
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