Gateway technologies for home network and their implementations

We propose two gateway architectures. The first one is the home gateway, which interconnects home networks and the public (access) network. We show its requirements and software design. We implemented an experimental home gateway based on a Web server enhanced with Java facilities. It interconnects the Internet and the home networks (IEEE1394 AV network and the ECHONET home automation network). It also has a real time MP1394 transcoding function which transcodes AV data on IEEE1394 into MPEG4 video. It provides the capability of remote control of the home, and AV data transmission/translation capabilities. The second one is the wireless gateway. We show the background with respect to the wireless gateway and its design. The key issue is to develop interconnectivity between wired and wireless networks, and then we show our implementation of it. It interconnects IEEE1394 and 802.11b 2.4 GHz band high-speed wireless network, and transmits AV control commands and high-quality AV data.