Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2011-01-11
2011-01-11
Phan, Hanh (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S045000, C398S135000, C370S535000, C370S537000, C370S401000
Reexamination Certificate
active
07869712
ABSTRACT:
Provided are a method and apparatus for increasing transmission capacity for large-capacity high-speed signal transmission in an optical transport network (OTN). A method and apparatus for increasing transmission capacity are needed, which can transmit a large-capacity high-speed signal in order to transmit a signal through a united OTN by adapting signals from various tributary signal networks which have been independently operated for voice, image, or data transmission. Although various types of techniques such as Time Division Multiplexing (TDM), Wavelength Division Multiplexing (WDM), and an optical Printed Circuit Board (PCB) method have been performed, the techniques have various limitations. Therefore, a method and apparatus is provided for embodying a large-capacity optical transmission network, which overcome the limitations by using a Virtual Concatenation (VC) method.
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Cho Hyun-woo
Kang Sae Kyoung
Ko Je Soo
Shin Jong-Yoon
Electronics and Telecommunications Research Institute
Phan Hanh
Rabin & Berdo P.C.
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