Multiplex communications – Wide area network – Packet switching
Patent
1991-02-15
1993-07-13
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 60, H04Q 1104
Patent
active
052280314
ABSTRACT:
An asynchronous time-division multiplex digital transmission system includes a switching network having a plurality of interconnection elements. Incoming data cells on respective input lines to an interconnection element during a time frame are temporarily stored in respective buffers and a converter circuit reassembles the data words therein into intermediate data blocks which respectively contain a set of sequentially corresponding data words of all of the cells, so that at least one intermediate block contains the data words which include the path identifications of such cells. The intermediate blocks are produced on respective intermediate lines (14a to 14d), and successive data words of the blocks on each intermediate line are successively entered into a buffer for such line. A comparator (16) is coupled to the intermediate line on which the block containing the data words which include path identification is produced, and from such data words determines the cell which is to be assigned to an output line of the interconnection element. The comparator actuates read-out of the data words of such assigned cell from the buffers, and a multiplexer (24) re-assembles them into such cell which is supplied to the output line of the interconnection element.
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Mertelmeier Christine
Wolker Roland
Eason Leroy
Olms Douglas W.
Ton Dang
U.S. Philips Corporation
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