A video/audio transmission system for sending video and audio information from video and audio files of a center to a subscriber through a subscriber's junction line is disclosed in which at least one subcenter having a video/audio buffer memory, an exchange and the like is disposed near to the subscriber...http://www.google.com.au/patents/US4538176?utm_source=gb-gplus-sharePatent US4538176 - Buffer memory dispersion type video/audio transmission system
