A video conferencing network includes remote video terminals (10) interconnected to a switching network (66) through coaxial cables (16). The switching network (66) is operable to provide an audio and video data path between two or more video terminals (10). The switching network (66) operates as both...http://www.google.de/patents/US4710917?utm_source=gb-gplus-sharePatent US4710917 - Video conferencing network
