公开(公告)号：US4816905A

公开(公告)日：1989-03-28

申请号：US044393

申请日：1987-04-30

申请人： Ernest P. Tweedy ,  Eric C. W. Lin ,  George P. Eichelberger ,  Mehmet Mustafa

发明人： Ernest P. Tweedy ,  Eric C. W. Lin ,  George P. Eichelberger ,  Mehmet Mustafa

IPC分类号： H04N7/15 ,  H04N1/00 ,  H04N7/10

CPC分类号： H04N1/00098

摘要： An interactive system transfers video and audio information from a central facility to terminals by means of addressed television frames. Each audio frame includes information representing a single channel of time compressed audio. The terminals store correctly addressed frames. Video frames are repeatedly replayed to provide series of still-frame images. The audio frame is used to generate a normal speed audio output.