US Patent 8150449 Wireless communication device

A wireless communication device for effecting wireless communication using a short-range wireless communication method having a ranging function, which carries out wireless connection establishment/disconnection control using ranging information. For example, the wireless communication device determines the range to another wireless communication device within wireless communication range, and if it finds a wireless communication device present within a predetermined range establishes a wireless connection with that wireless communication device, and disconnects the connection if the wireless communication device with which the device is in wireless connection passes beyond a predetermined range.