Multiplex communications – Wide area network – Packet switching
Patent
1988-03-22
1989-06-27
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04J 324
Patent
active
048436054
ABSTRACT:
A node apparatus is used in a communication network having a multi-conjunction architecture. The communication network has a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device. The node apparatus generally comprises an input port, an output port, and a control part for controlling the coupling of input channels of the input port to output channels of the output port. The control part disconnects and releases a fixed communication path when a certain logic state of a signal continues for a predetermined time period after the communication path is fixed. This predetermined time period is variable and is determined depending on a characteristic of the signal to suit a protocol of the communication.
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Jung Kim Min
Olms Douglas W.
Ricoh & Company, Ltd.
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