Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2007-01-23
2007-01-23
Singh, Dalzid (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S087000, C398S149000
Reexamination Certificate
active
10315682
ABSTRACT:
The present invention is generally directed to optical signal devices that monitor the quality of an optical signal in a wavelength division multiplexing system by evaluating the information in the different wavelength channels.
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International Search Report for PCT/US02/39587, dated Feb. 6, 2004.
Eldada Louay
Gerhardt Reinald
E. I. du Pont de Nemours and Company
Singh Dalzid
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