| 摘要 |
<p>A mobile communication terminal comprises a first radio communication unit (102) corresponding to a first radio communication system, an interface (107) to which an external device (200) can be removably connected, a determination unit (111) for determining whether or not the external device (200) connected to the interface (107) includes a second radio communication unit (202) corresponding to a second radio communication system, a battery voltage detection unit (104) for detecting the battery voltage of a power supply unit (103) including a battery, and a control unit (111) for controlling the external device (200) based on the whether communication is made by the first radio communication unit (102), the result of the determination by the determination unit (111), and the battery voltage detected by the battery voltage detection unit (104). This mitigates the effect on a primary communication system caused by the addition of a secondary communication system and enables multi-mode communication depending on the battery voltage to be effectively executed without putting the user in an unexpected situation. ® KIPO & WIPO 2009</p> |
