Methods and apparatus for transmitting synchronous data

Details Methods and apparatus for transmitting synchronous data Methods and apparatus for transmitting synchronous data

2006-02-14

2006-02-14

Ngo, Ricky (Department: 2663)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S395510, C370S535000

Reexamination Certificate

active

06999470

ABSTRACT:
In order to allow geographically separate SONET/SDH networks to be interconnected transparently without changes in clock content, payload and overhead, it has conventionally necessary to use dark fiber. For relatively low bandwidth operators this is prohibitively expensive. The present invention proposes a scheme using a mapping and virtual concatenation scheme to allow SONET/SDH to be carried in a bandwidth efficient manner over a SONET/SDH link whilst maintaining clock integrity.

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patent: 6731656 (2004-05-01), Slater et al.
patent: 2002/0001308 (2002-01-01), Heuer
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patent: 2003/0152079 (2003-08-01), Loeffler et al.
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patent: 1 091 513 (2001-04-01), None
patent: 1 158 710 (2001-11-01), None
patent: WO 9950986 (1999-10-01), None
EP 1 158 710 A1 has a US Equivalent 2002/0001308 A1.

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