Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2007-10-09
2007-10-09
Phan, Hanh (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S083000, C398S084000, C398S085000, C398S082000, C398S079000, C398S177000, C398S025000, C398S038000, C385S024000, C385S037000, C385S140000
Reexamination Certificate
active
10100919
ABSTRACT:
An optical level calculator calculates optical powers of individual wavelengths of a through wavelength division multiplexed signal based on an input level monitor, network information, and insertion loss information5, and obtains an optimum level for an add signal. An optical level controller controls a power of the add optical signal to the optimal level based on the calculated result, and multiplexes the through wavelength division multiplexed signal and the add optical signal.
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McGinn IP Law Group PLLC
NEC Corporation
Phan Hanh
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