Multiplex communications – Wide area network – Packet switching
Patent
1983-10-11
1986-06-10
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370100, 370 99, H04J 326
Patent
active
045947082
ABSTRACT:
A digital train is synchronized to correct the framing of received information. To this end, the transmitted digital train is timely structured into recurrent time intervals having a fixed length. The information to be transmitted is divided into blocks called packets, having the length of a time interval and comprising a field of data and a header used for identifying the packets. A digital transmission system with a TDM multiplex is divided into equal and recurrent time intervals, wherein the information is indexed by an associated explicit header, and wherein the absence of information in a time interval is indexed by a specific header which is not used elsewhere as a header. The recognition of a specific address is also used for synchronizing the alignment of the time intervals.
REFERENCES:
patent: 4071706 (1978-01-01), Warren
patent: 4096355 (1978-06-01), Rothauser et al.
patent: 4154983 (1979-05-01), Pedersen
patent: 4317197 (1982-02-01), Ulug
patent: 4482999 (1984-11-01), Janson et al.
"A Subscriber Loop Multiplexing System for Integrated Service Digital Networks", by Motoyama et al., IEEE 1981, National Telecommunications Conf. Innovative Telecommunications-Key to the Future, New Orleans, La.; 29 Nov.-Dec. 3, 1981.
Servel Michel
Thomas Alain
LandOfFree
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