US Patent 7607920 Connecting device for interconnecting electronic devices

A connecting device includes an input portion, a first connecting member, a second connecting member, a wire and an output portion. The input portion is configured for electrically connecting to one of the two electronic devices. The first connecting member includes a first surface. The first surface forms a number of first electrical contacts electrically connected to the input portion. The output portion is configured for electrically connecting to the other electronic devices. The second connecting member includes a second surface, the second surface forms a number of second electrical contacts electrically connected to the output portion via the wire. The first and second connecting members magnetically attract each other so that the first and the second surface contact each other, and as a result, the first and second electrical contacts communicate with each other.