| 摘要 |
<p>PROBLEM TO BE SOLVED: To supply power for longer time from a battery. SOLUTION: When an exclusive key 71 is operated in a state in which a suspension mode is set, operation of the key is detected by a switch monitoring circuit 66 and a CPU 61 is interrupted. In this case, the CPU 61 supplies necessary power to a CD-ROM controller 67, a CD-ROM drive 5 and an audio circuit 68 to be required for CD reproduction. Thus, a CD can be reproduced in a state of the suspension mode.</p> |
