Multiplex communications – Wide area network – Packet switching
Patent
1993-05-13
1995-07-04
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 68, H04Q 1104
Patent
active
054307236
ABSTRACT:
A time switch control system having a cross-connect function is used for digital time-division. Multiplex communications permit desired channel settings and reduce power consumption. Identifying circuits identify which time-slot signals are to be retained by an input signal retaining memory, and output identification information to the retention memory, and to a retention memory controller. The retention memory controller stores therein the identification information from the identifying circuits, then reads out the identification information, and controls the input signal retaining memory in accordance with the contents of the identification information. Only the specified time-slot signals are stored and retained by the input signal retaining memory, thereby reducing power requirements. Exchange/output circuits exchange the time-slot signals stored in the input signal retaining memory in accordance with channel setting information, and output the exchanged signals.
REFERENCES:
patent: 4759010 (1988-07-01), Murata et al.
patent: 4759012 (1988-07-01), Suzuki
patent: 4972407 (1990-11-01), Kawai
patent: 5271002 (1993-12-01), Barri et al.
Hiyama Shinji
Nakaide Hiroshi
Nakamoto Katsuhiko
Namba Kensaburo
Takeda Satoshi
Hom Shick
NEC Corporation
Olms Douglas W.
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