Transmission apparatus

Details Transmission apparatus Transmission apparatus

2005-08-09

2005-08-09

Vincent, David (Department: 2661)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S389000

Reexamination Certificate

active

06928088

ABSTRACT:
A transmission apparatus utilizing an SDH is provided. The transmission apparatus includes a processing unit controlling the transmission apparatus, an SSM extraction unit extracting a first SSM from an input signal, and a selector selecting either of the first SSM and a second SSM set by the processing unit. The transmission apparatus can add an incoming SSM function, for instance, to an external 2 Mbps SSM function in addition to an assumed SSM function. Accordingly, the transmission apparatus can conform to the ITU-T G.781 Recommendation by utilizing a related-art synchronization function.

REFERENCES:
patent: 6041066 (2000-03-01), Meki et al.
patent: 6185247 (2001-02-01), Williams et al.
patent: 2004/0148437 (2004-07-01), Tanonaka
patent: 11127128 (1999-05-01), None

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