| 摘要 |
PROBLEM TO BE SOLVED: To provide the power a supply controller that suppresses power consumption of a battery, independently of that of a terminal in an extension adaptor connectable to the portable terminal for information communication and that tentatively protects the battery, even if the power is much consumed. SOLUTION: An image-capturing adaptor 11 is inserted to/withdrawn from the terminal 1, and a power supply battery 13 is provided to the adaptor 11 in addition to the power supply of the terminal 1. In this case, when the adaptor 11 is adapted to the terminal 1, the adaptor power supply 3 is activated. If the electromotive force of the adaptor power supply 3 drops, the power is supplied from the terminal 1 to the adaptor 11. |
