Multiplex communications – Wide area network – Packet switching
Patent
1988-11-22
1991-02-12
Orsino, Joseph A.
Multiplex communications
Wide area network
Packet switching
H04J 1408
Patent
active
049919750
ABSTRACT:
Disclosed is a time division multiplexed optical communication system that is capable of operation at relatively high bit rates and that is relatively stable and immune to crosstalk and noise. The system comprises receiver means wherein the timing signal for demultiplexing is derived from the fully multiplexed optical pulse stream by means that comprise a narrow band receiver and timing means that produce a lower-frequency timing signal from the output of the narrow band receiver. The timing signal is used to drive one or more optical switches. In one embodiment of the invention the receiver means have a binary-tree architecture and the timing signals are substantially sinusoidal. In another embodiment the receiver means have a linear-bus architecture and the timing signals are pulse-like.
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Alferness Rodney C.
Eisenstein Gadi
Korotky Steven K.
Tucker Rodney S.
AT&T Bell Laboratories
Beek L. Van
Orsino Joseph A.
Pacher Eugen E.
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