Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-07-21
1997-09-30
Hsu, Alpus H.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370409, 370410, 348 7, 348 13, 455 42, H04L 1256, H04N 7173
Patent
active
056732643
ABSTRACT:
An image information distribution system is provided which responds to a control signal from subscribers at high speed by efficiently using transmission lines. Further, an image information distribution system is provided which shortens the wait time caused by shortage of an image information source if a number of subscribers access the same image information. Image information is transmitted between an image information providing node and an image information distribution node at the ratio of 1:1 via ATM connection corresponding to the type of image information and is distributed from the image information distribution node to each subscriber accommodation node at the ratio of 1:N via ATM connection. Each subscriber accommodation node is provided with a cell filter for extracting only an ATM cell containing the image information requested by the subscriber for selecting only necessary information out of the image information distributed to the subscriber accommodation node and transmitting it to customer premises equipment of the subscriber. The image information providing node, the image information distributing node is provided with an image information memory corresponding to ATM connection for storing image information or the subscriber accommodation node.
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Hitachi , Ltd.
Hsu Alpus H.
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