This invention presents a dual-mode wireless/wired power line communications that is used to carry signals with variable transmission data rates from 31.0 Mbps to 173.6 Mbps over a power line cable. The dual-mode wireless/wired power line communications can be seamlessly used either to connect with any...http://www.google.com.hk/patents/US7269403?utm_source=gb-gplus-share專利 US7269403 - Dual-mode wireless and wired power line communications