Distribution of synchronization in a synchronous optical environ

Details Distribution of synchronization in a synchronous optical environ Distribution of synchronization in a synchronous optical environ

1995-06-06

1998-10-27

Olms, Douglas W.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370507, 375293, 375326, H04J 306

Patent

active

058286705

ABSTRACT:
Apparatus and methods for distributing synchronization throughout a network is disclosed. The distribution of the synchronization is through the use of generating a reference timing signal, and by counting the line clock pulses between the start of a frame and the timing reference signal pulse at a first office and that count is then encoded and transmitted to the next office. At the next office, the transmitted count is decoded and used for regenerating synchronization by counting a number of received line clock pulses from the start of the frame to regenerate the reference timing signal. Particular criteria for selecting the frequencies for the timing reference signal are disclosed.

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Lau, Richard C., and Fleischer, Paul E., Synchronous Techniques For Timing Recovery In BISDN Accepted for publication in IEEE Transactions on Communications, (Jul. 31, 1995).

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