| 摘要 |
PROBLEM TO BE SOLVED: To make the operable time of a telephone function of a mobile phone long. SOLUTION: A voltage of a positive electrode terminal of a secondary battery 70 is monitored, it is judged whether the monitor voltage is less than a threshold voltage V01 or not (step 300), and the operation proceeds to a step 310 and it is judged whether a music function is operating or not when the monitor voltage is less than the threshold voltage V01. When the music function is operating, a voice processing portion 50 overlaps a music function control warning signal on a music signal and outputs it from an earphone 40c (step 320). A music function control warning sound is therefore overlapped on a music and is output from the earphone 40c. Then, the output of the music signal to the earphone 40c by the voice processing portion 50 is stopped (step 330). COPYRIGHT: (C)2005,JPO&NCIPI
|
