Telecommunication system with video and audio frames

Claim 1

A telecommunication system for transmitting still video frames and accompanying audio over a first transmission medium comprising a facility and a terminal, wherein said facility includes: means for providing video frames, wherein each video frame includes information representing an image; means for providing audio frames, wherein each audio frame includes information representing a single channel of time-compressed burst of audio; means for inserting a mode code into each of said video and audio frames signifying whether the frame is a video frame or an audio frame; and means for coupling a series of video frames and audio frames to said transmission medium, and wherein said terminal includes: detecting means for detecting frames on said transmission medium; medium responsive to said mode code for determining whether said frames are video frames or audio frames; first storage means for storing information included in a video frame; means for repeatedly displaying the image represented by information stored by said first storage means; second storage means for storing information included in at least one audio frame; and means for providing in normal time, an audio output signal corresponding to said information stored in said second storage means.