| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile phone terminal for preventing erroneous operations through a key and reducing power consumption in music reproduction in the case that a terminal provided with the key exposed externally all the time carries out music reproduction. <P>SOLUTION: Operation devices such as a disk type jog dial 5 and an end key externally exposed all the time are provided to an upper case 1. The mobile phone terminal has a music reproduction function, and even during music reproduction, a key lock function is effectively set when a key lock slide key 8 is operated by a user. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
