Time-based grooming and degrooming methods with common time...

Details Time-based grooming and degrooming methods with common time... Time-based grooming and degrooming methods with common time...

2007-01-30

2007-01-30

Ngo, Ricky Q. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S535000, C370S537000, C370S542000

Reexamination Certificate

active

09961081

ABSTRACT:
Time-based grooming and degrooming methods and systems of data units that utilize a common time reference is disclosed. Time is divided into a plurality of contiguous periodic time frames with a plurality of time frame durations. The system and method enable the grooming and switching of data units from a plurality of low speed links into one or more high-speed links. The system and method further enable the grooming and switching of data units from one or more high-speed links into a plurality of low speed links. The plurality of data units that are contained in each of the time frames are forwarded in a pipelined manner through the network switches. The system operates with high-speed wavelength division multiplexing (WDM) links, i.e., with multiple lambdas. The outcome of this method is called fractional lambda grooming.

REFERENCES:
patent: 6430201 (2002-08-01), Azizoglu et al.
patent: 6496519 (2002-12-01), Russell et al.
patent: 6498794 (2002-12-01), Tsukamoto et al.
patent: 6608844 (2003-08-01), Teodorescu et al.

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