H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/30
H04N 7/16 (2006.01) H04M 11/08 (2006.01) H04N 7/04 (2006.01) H04Q 11/04 (2006.01) H04H 1/02 (2006.01)
Patent
CA 1156349
ABSTRACT OF THE DISCLOSURE A video/audio transmission system for sending video and audio information from the video and audio files of a center to a subscriber through a subscriber's junction line is dis- closed in which at least one subcenter is disposed near to the subscriber to reduce the number of repeaters arranged on the subscriber's junction line. The subcenters can include a video/audio buffer memory, and exchange and other related cir- cuits. The transmission lines for sending the video and audio information from the center to the subcenter are spatially di- vided into a plurality of groups in accordance with the sort of the video and audio information being sent, and further the information is time-divisionally transmitted at each group.
340229
Imanishi Norio
Kosuge Wataru
Shibata Yoji
Yabiki Akira
Yukawa Nobumichi
Gowling Lafleur Henderson Llp
Hitachi Ltd.
Nippon Telegraph & Telephone Public Corporation
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