Multiplex communications – Pathfinding or routing – Through a circuit switch
Reexamination Certificate
2005-06-15
2009-12-29
Yao, Kwang B (Department: 2416)
Multiplex communications
Pathfinding or routing
Through a circuit switch
C370S538000
Reexamination Certificate
active
07639677
ABSTRACT:
Provided is an optical transponder that receives a tributary signal such as a SDH/SONET signal, a GbE (Gigibit Ethernet) signal, and a SAN (Storage Area Network) signal in a WDM (Wavelength Division Multiplexing) transmission system and a SDH (Synchronous Digital Hierarchy)/SONET (Synchronous Optical Network) system, and more particularly, to an optical transponder having a switching function. The optical transponder having a switching function includes: a switch changing a data path of an input tributary signal from a plurality of channels (ports); an STM-64/OC-192 mapper/demapper mapping the tributary signal switched to a different data path by the switch to an STM-64/OC-192 signal or demapping the STM-64/OC-192 signal to the tributary signal; and a transmission delay time compensator compensating for a differential delay caused by a transmission route difference on an optical fiber link when the STM-64/OC-192 signal is demapped to the tributary signal.
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Kim Kwang-joon
Lee Joon Ki
Lee Jyung Chan
Electronics and Telecommunications Research Institute
Lowe Hauptman & Ham & Berner, LLP
Skripnikov Alex
Yao Kwang B
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