| 摘要 |
PURPOSE:To eliminate the need for the user turning off power to keep perpetual supervision till power is interrupted while a power key is being depressed by allowing a control section to notice power interrupt when power interrupt is confirmed through the consecutive depression of the power key for a prescribed time or over. CONSTITUTION:When power is going to be interrupted, the user depresses a power key 11 of a key operation section 1. Thus, depression identification is sent to a control section 6, the depression identification is consecutive for a prescribed time or over, and the power interrupt is confirmed, then the control section 6 informs it to an audio control means 61. The means 61 receiving the notice controls an audio section 2 to generate a tone to inform power interruption to the user. The user listening to the tone releases the depression of a power key 11 by recognizing a command of power interruption. On the other hand, the control section 6 informing the confirmation of power interruption to the means 61 turns off the power supply for the key operation section 1 and the mobile telephone set main body. Thus, it is not required for the user to watch the power supply of the main body till it is interrupted. |
