A connection apparatus for a mobile telephone, includes a plug (2) and a receptacle (1) that each has both beam contacts and coaxial contacts. The plug includes a receiver (10) with a cavity (46) and with a sheath (50) lying within the cavity, and with a gap (22) between them. The receptacle includes...http://www.google.de/patents/US5454734?utm_source=gb-gplus-sharePatent US5454734 - Electrical connection system
