| 摘要 |
Provided is a common card device which can be used in common even for main body devices employing different power supply systems. A method for supplying the card device with power is also provided. The card device is provided with a flat rectangular card base body (101), an internal circuit (301), an external connector (102) and a main body connector (103). The external connector (102) is provided on the end side (202) positioned on the opening side (201) of a card slot (21) in the state where the external connector is inserted into the card slot, and the external connector is supplied with power from an external power supply. The main body connector (103) is provided on the furthest side of the card slot (200) in the state where the main body connector is inserted into the card slot (200), and the main body connector is supplied with power from a main body device. Power required for operations of the internal circuit (301) is supplied from either the main body connector (103) or the external connector (102) which is supplied with power. |
