Multiplex communications – Wide area network – Packet switching
Patent
1994-03-21
1996-05-14
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 63, 370 59, 370108, H04L 1252
Patent
active
055174930
ABSTRACT:
The setting and phase adjusting apparatus for synchronous multiplex communications is provided which adjusts phase differences of main signals caused between a plurality of synchronous multiplexing sections and a line setting section during line setting, in which to reduce the scale of circuitry of the line setting section in a transmission device for carrying out multiplexing and line setting on large-capacity signals, a plurality of pointer modifiers are arranged on a shelf on which the line setting section is arranged. The pointer modifiers connect the line setting section to the respective synchronous multiplexing sections. The pointer modifiers are supplied with multiplexed signals of respective signal series whose data head positions are shifted from one another. The head positions of these signals are synchronized with a timing signal from a timing generator by the pointer modifiers. Line switching is then effected by time switches and a space switch.
REFERENCES:
patent: 4429386 (1984-01-01), Graden
patent: 4488292 (1984-12-01), Troost
patent: 4621357 (1986-11-01), Naiman
patent: 5146453 (1992-09-01), Nagler et al.
patent: 5335223 (1994-08-01), Iino
Mochizuki Hideaki
Uekama Kimio
Chin Wellington
Fujitsu Limited
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