Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2005-06-30
2009-11-24
Pham, Chi H (Department: 2416)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C713S400000, C713S600000, C714S002000
Reexamination Certificate
active
07623444
ABSTRACT:
An apparatus and method for a redundancy control in duplex switch boards in a high speed network system are provided. The apparatus includes: a switching unit for switching data inputted one of the duplex switch boards to a destination line card; a state controlling unit for controlling a clock state of an opponent switch board between the duplex switch boards; an IPC controlling unit for controlling an inter processor communication (IPC) of a platform of the communication network system; a processing unit for controlling the IPC controlling unit and the state controlling unit of the duplex switch boards; and a clock controlling unit for synchronizing a clock between the duplex switch boards.
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Ahn Byungjun
Jung Hae-Won
Ra YongWook
Blakely , Sokoloff, Taylor & Zafman LLP
Elallam Ahmed
Electronics and Telecommunications Research Institute
Pham Chi H
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