.Communication methods and apparatusUS200702874059 jun 200613 dec 2007Radtke William OMethod and Device for Providing Broadband Over Power Line CommunicationsDE10008602A124 feb 20007 jun 2001Siemens AgData processing apparatus such as personal computer, printer etc.DE10012235C214 mar 200020 dec 2001Siemens AgSchaltungsanordnung zur Daten???bertragung auf den Energieversorgungsleitungen eines elekt