The wireless LAN access point comprises a CPU, a PCI bus connected to the CPU, a power source section 18 connected to the PCI bus, a wireless LAN interface 16, and a wire LAN interface. Each of the communication interfaces comprises a power switch which can switch ON/OFF an electrification state with...http://www.google.com.hk/patents/US7281143?utm_source=gb-gplus-share專利 US7281143 - Method of controlling power by a power controller controlling a power switch of an unused communication interface
