Multiplex communications – Wide area network – Packet switching
Patent
1982-07-30
1984-08-21
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370109, H04J 306
Patent
active
044674732
ABSTRACT:
A digital transmission system in which bursts of digital signals are transmitted in opposite directions over a two wire telephone loop at fixed frame intervals. Each signal burst is bounded by initial and final synchronization bits at its beginning and ending respectively. Synchronization is established by determining coincidence of the final bit of one burst, the initial bit of the following burst, and two gating signals having an equivalent time interval therebetween.
REFERENCES:
patent: 4049908 (1977-09-01), Knorpp et al.
patent: 4239934 (1980-12-01), Andren
Paper, entitled "A Long Burst Time-Shared Digital Transmission System for Subscriber Loops" by J. P. Andry et al., Societe Anonyme de Telecommunications, Paris, France, International Symposium on Subscriber Loops and Services 80, pp. 31-35.
Paper, entitled "Realisation d'un Equipement Terminal Numerique d'Abonne pour Service Telephonique et de Donnees", by R. Montemurro et al., Colloque International de Commutation, International Switching Symposium, Paris, France, May 11, 1979, pp. 926-933.
Arnon Ephraim
Barlow Christopher J.
Chomik Michael W.
Mowle John E.
Northern Telecom Limited
Olms Douglas W.
Rokoff Kenneth I.
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