Patent ID: 7069059
Filing Date: 2006-06-27
Classification: G02B,G06F

Abstract:
1. An electronic device, that is attachable to and detachable from an interface device, wherein: the electronic device includes a first power interface, a first communication interface, a main function block, and a main power source, the interface device includes a second power interface, and a second communication interface, the first power interface is connected to the second power interface to which an external power source is connected so that power transfer can be carried out between the first and second power interfaces, while the electronic device is connected to the interface device, the first communication interface is connected to the second communication interface, to which an external device is connected, so that a communication can be carried out between the first and second communication interfaces, while the electronic device is connected to the interface device, the first communication interface being connected to the first power interface so that power supply can be carried out only between the first communication interface and the first power interface, and the main function block, having a control function which functions when the electronic device is not connected to the interface device, is connected to the main power source and the first power interface so that power supply can be carried out between the main function block and the main power source, and between the main power source and the first power interface.