Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1997-04-28
1998-05-26
Kizou, Hassan
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
370376, 370498, 370538, 370543, H04J 322
Patent
active
057578060
ABSTRACT:
A data multiplexing system which includes a plurality of data multiplexing buses through which a plurality of low-speed digital signals are collected into, and distributed from, a multiplexer/demultiplxer. In a data multiplexing mode, the low-speed digital signals entered from a plurality of low-speed transmission lines have their signal format converted by respectively corresponding low-speed interface circuits, and the resulting signals are multiplexed in time slots designated within a multiplexed signal of primary level on the up bus line of the corresponding data multiplexing bus. The high-speed multiplexer multiplexes the collected signals up to a predetermined signal level and sends the resulting secondary multiplexed signal to a high-speed interface module having a high-speed transmission line interface. The high-speed interface module converts the received secondary multiplexed signal and sends the resulting signal to the high-speed transmission line. The signal of the high-speed transmission line is processed by the high-speed interface module and the high-speed demultiplexer, and the low-speed digital signals are sent to the low-speed transmission lines.
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Ashi Yoshihiro
Fujita Hiroyuki
Koyama Hiroki
Wright Michael A.
Hitachi , Ltd.
Kizou Hassan
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