| 摘要 |
<P>PROBLEM TO BE SOLVED: To output audio even in a non-operation state, and to control the audio output corresponding to a battery residual amount in the non-operation state. <P>SOLUTION: A personal computer 10 includes: a line in terminal 19 inputting an audio signal from a speaker 18 or an external apparatus; a speaker amplifier 54 amplifying the inputted audio signal and making audio be outputted from the speaker 18; a battery 47 storing power; a power supply circuit 46 for supplying power from the battery 47 to the amplifier 54; and an EC/KBC 45 controlling the power supply to the amplifier 54 by the power supply circuit 46 based on the residual amount of the battery 47 and a preset battery level in time of the non-operation state. <P>COPYRIGHT: (C)2011,JPO&INPIT |
