| 摘要 |
<p>PROBLEM TO BE SOLVED: To prolong the battery driving time of a communication terminal by providing a battery function on a flip cover for protecting a flip. SOLUTION: When performing data communication while mounting a communication terminal on a personal computer(PC), the power source of the PC is used and when singly driving the communication terminal without mounting it on the PC, it is driven by a flip type battery. When no capacitance is remained in this flip type battery 10, the communication terminal is driven by the built-in battery. Thus, the battery driving time of the communication terminal can be prolonged.</p> |
