Multiplex communications – Wide area network – Packet switching
Patent
1979-11-01
1982-01-05
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 58, H04J 302, H04Q 1104
Patent
active
043097650
ABSTRACT:
In a process for transmitting items of information between devices of an indirectly controlled exchange system via time division multiplex (TDM) channels, with multiple repetition of the items of information, the items of information comprise a plurality of bytes including a number byte which numbers the relevant item of information. The items of information are transmitted by means of buffer stores and multiplexers. The item of information also include a acknowledgment bytes which acknowledge the correct reception of previously transmitted items of information. The reception of acknowledgement bytes is also evaluated as a signal that the TDM channel previously used to transmit the acknowledged information has been released for the transmission of a further item of information.
REFERENCES:
patent: 3570008 (1971-03-01), Downing et al.
patent: 3740482 (1973-06-01), Plank et al.
patent: 4016548 (1977-04-01), Law et al.
patent: 4110830 (1978-08-01), Krygowski
Mueller Helmut
Rambold Thomas
von Ow Hans P.
Werres Bernhard
Olms Douglas W.
Siemens Aktiengesellschaft
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