Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-07-21
1998-05-26
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
057577986
ABSTRACT:
An image information distribution system is provided for distributing image information via a communication network to subscribers. When a subscriber changes an image information specification channel, the system changes the channel at high speed, shortening the image information wait time. An image information distribution system is also provided for offering a video on demand service. Thus, in the image information distribution system, in addition to image information requested by a subscriber, other image information is also provided for a subscriber accommodation node according to a predetermined image information selection rule. The node includes means for extracting the image information requested by the subscriber from a plurality of provided image information entries, and providing it to the subscriber. When the subscriber requests change of the image information, setting of the image information extraction means is changed and new image information is extracted from the provided image information entries and provided to the subscriber. The node contains a memory for temporarily storing image information corresponding to each subscriber and a controller for controlling read of the memory. Image information is stored in the memory in response to a subscriber's request, and the controller then provides the stored information to the subscriber by controlling read of the memory according to the subscriber's request, such as reproduction, stop, making still, skip, or retrieval.
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Hitachi , Ltd.
Hsu Alpus H.
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