| 摘要 |
PURPOSE: To save energy and to further improve durability. CONSTITUTION: A main power source is turned off and a standby power source is turned on. After a main CPU is turned off (S1), it is judged whether a key input, original presence and timer operation start time are detected or not (S2-S4). When all the judged results are negative (No), it is judged whether a call signal is detected or not (S5). When a call signal is detected, it is judged whether the telephone number of an opposite side terminal shows a communication terminal or not (S6) and only when it shows the communication terminal, the main power source and the main CPU are turned on (so that the off state can be maintained when it shows a speaking terminal). Next, a slave CPU informs the main CPU (S8) of the factor of start, when the control of the main CPU is finished, processing is returned to the step S1 again, and this processing is repeated. |
