Patent ID: 8332547

Claim:
A power exchange system, comprising: a first power exchange device; and a second power exchange device, wherein the first power exchange device comprises: a connection portion that is connected to a processing device; a wireless communication portion that performs wireless communication with the second power exchange device in a vicinity; a power exchange portion that exchanges power with the second power exchange device in the vicinity during one or more power exchange time slots; a power management portion that causes the power exchanged by the power exchange portion to be input and output between the connection portion and the processing device; a power control portion that, after the wireless communication portion has performed the wireless communication with the second power exchange device in the vicinity, controls whether to cause the power exchange portion to exchange power with the second power exchange device in the vicinity depending on a power source state of the processing device; and a protocol control portion that generates power transmission request information, wherein the power transmission request information comprises: a power transmission source address that specifies the power exchange device that transmits power and the power exchange device that receives power; a power reception format that specifies the format used to receive transmitted power; a desired power reception amount that indicates an amount of power that the receiving power exchange device desires to receive; and one or more power reception time slots during which the receiving power exchange device desires to receive power.