Multiplex communications – Wide area network – Packet switching
Patent
1989-01-11
1991-05-07
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 67, H04Q 1104
Patent
active
050142682
ABSTRACT:
A parallel time slot interchanger, particularly for use in telecommunication switching, comprises a plurality of switch groups, with each switch group containing a second plurality of channels. The parallel time slot interchanger incroporated a matrix-type architecture, with each module of the matrix comprising a switch block which in turn incorporates a switch memory, connect memory and associated control circuitry. The connect memory of each switch block is controlled by the control circuitry of that block. The data stored in the connect memory contains switch memory address information for reading channel data stored within the switch memory of the same switch block so as to be able to perform a time slot switching function during any given time slot of the parallel time slot interchanger. Each switch block is uniquely identified within its corresponding switch group so that only one switch memory address location is read and output during any time slot for each switch group.
REFERENCES:
patent: 3701112 (1972-10-01), Hagelbarger
patent: 4470139 (1984-09-01), Munter
patent: 4564936 (1986-01-01), Takahashi
patent: 4736406 (1988-04-01), Hasegawa et al.
patent: 4805172 (1989-02-01), Barbe et al.
patent: 4809260 (1989-02-01), Davidson et al.
Briscoe Milton R.
Sutherland Joseph E.
Tyrrell Raymond E.
Alcatel NA, Inc.
Chin Wellington
Olms Douglas W.
Van Der Sluys Peter C.
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