A video teleconferencing method and apparatus for computer workstations connected by a digital data network includes a transmission source means for a local workstation to send audio and video teleconference data across the network to one or more remote workstations, and, a receiver for the local workstation...http://www.google.fr/patents/US6195683?utm_source=gb-gplus-shareBrevet US6195683 - Video teleconferencing for networked workstations