Optical communications – Multiplex
Reexamination Certificate
2007-07-27
2010-11-02
Phan, Hanh (Department: 2613)
Optical communications
Multiplex
C398S079000, C398S135000, C398S058000, C398S182000, C370S466000, C370S474000, C370S351000, C370S352000, C370S392000, C385S024000, C385S037000
Reexamination Certificate
active
07826741
ABSTRACT:
An optical transponder includes a mapping unit mapping, out of multiple types of signals including a first client signal and a second client signal that transmission rates are different from each other, the first client signal having a lower transmission rate to a Generic Framing Procedure (GFP) frame defined in ITU-T Recommendations; a coding unit applying 64B/66B coding to the first client signal mapped to the GFP frame; and a multiplexing unit multiplexing the first client signal to which the 64B/66B coding has been applied and the second client signal in a frame conforming to an Optical Transport Network (OTN) defined in ITU-T Recommendations; in which the first client signal and the second client signal are accommodated in an identical frame in a mixed manner and transmitted as an optical signal having one wavelength.
REFERENCES:
patent: 7099584 (2006-08-01), Narvaez et al.
patent: 7324548 (2008-01-01), Natarajan et al.
patent: 7433371 (2008-10-01), Atsumi et al.
Hussain Qureshi, et al. “Generic Framing Procedure ITU-T G.7041” Electronic Products Solutions Group, Telecomms Networks Test Division, Scotland.
Maarten Vissers. “Optical Transport Network & Optical Transport Module: Digital Wrapper” Lucent Technologies, Apr. 2002.
Fujitsu Limited
Fujitsu Patent Center
Phan Hanh
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