Method and apparatus for managing lightpaths in...

Details Method and apparatus for managing lightpaths in... Method and apparatus for managing lightpaths in...

2005-04-08

2009-08-25

Singh, Dalzid (Department: 2613)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S030000, C398S031000

Reexamination Certificate

active

07580632

ABSTRACT:
A system and method that utilizes digital coding techniques to combine a high-rate data stream with a lower rate side data stream to produce a combined data stream in such a way that the side data can be extracted by an inexpensive, low-bandwidth receiver. The method generally comprises the steps of: combining at least one payload data stream with at least one side data stream into a composite electrical data stream; applying the composite data stream to an optical transmitter to produce an optical signal; detecting the optical signal with an optical receiver having a maximum frequency of operation less than one-half of the rate of the composite data stream; and recovering the side data stream from the electrical output of the optical receiver.

REFERENCES:
patent: 6094442 (2000-07-01), Okamoto et al.
patent: 6754449 (2004-06-01), Chang et al.
patent: 6940863 (2005-09-01), Xue et al.
patent: 2003/0025957 (2003-02-01), Jayakumar

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