作者: Richard Mcnorgan , Peter Coumans , Terrence H. Pocock , Allan E. Lodberg
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摘要: An interactive television system employs a telephone connection in two-way manner to send command signals from viewer central controller select various presentations and the audio portion of such location individual viewers. When is first established over lines between controller, transmission path identification sent viewer's terminal which indicates particular video path, e.g. trunk line and/or channel, connecting location. This then used control uniquely addressed viewo terminal, where they are stored retransmitted receiver.