US Patent 7243151 Home gateway apparatus

A home gateway apparatus that can control the power in each current carrying unit, and lower the power consumption is provided; by dividing the apparatus into a first system that has a minimum function to connect with the Internet, and a second system that has necessary functions to execute applications on the Ethernet®. Both the first and second systems are controlled individually, so that the power is turned on/off separately. Also, when the second system without the power is turned on, an Ethernet® connection controller is provided as an interface to avoid the interface connectivity problem, and an IP address is automatically obtained after turning on the power.