A video communications system is provided that makes it possible for home viewers to download a movie in digital format from a large archive library, store the digital movie file locally, and view the movie at any convenient time. The system may limit access to particular movies and provides an accounting...http://www.google.es/patents/US4949187?utm_source=gb-gplus-sharePatente US4949187 - Video communications system having a remotely controlled central source of video and audio data
Video communications system having a remotely controlled central source of ...
