Patent
1974-09-17
1976-08-10
Cooper, William C.
179 15AA, H04Q 518
Patent
active
039743390
ABSTRACT:
A method for transmitting digital data in a time-division multiplex telecommunications network over subscriber lines connecting digital subscriber stations to a subscriber concentrator is described. Transfers of data occur over two wire subscriber lines in both transmission directions in a time interleaved manner alternatively and in the form of bits. The bits are formed to have a duration such that in conjunction with the distance/velocity lags of transmission over subscriber lines they almost completely use the sampling intervals or pluralities thereof. This forms the basis for transmisson over time division multiplex paths going out from the subscriber concentrator and coming in thereat, except for a tolerance time interval allowed for the period of the clock generators determining the bit rate in the subscriber sets relative to the period of the exchange clock generator determining the exchange clock rate in the exchange connected to the subscriber concentrator.
REFERENCES:
patent: 3832492 (1974-08-01), Charransol
Knorpp Eberhard
Lutz Karl-Anton
Cooper William C.
Popek Joseph
Siemens Aktiengesellschaft
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