Multiplex communications – Fault recovery – Bypass an inoperative channel
Reexamination Certificate
2008-01-01
2008-01-01
Chan, Wing (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative channel
C370S353000, C370S466000
Reexamination Certificate
active
07315511
ABSTRACT:
Disclosed herein is a SONET/SDH transmitter provided in a transmission system in which a SONET/SDH network and an IP network are connected with optical LAN-IF. The SONET/SDH transmitter has a redundancy transmission line structure consisting of two transmission lines, a K-packet processing section, and a transmitting section. The K-packet processing section is used for generating a specific byte (SONET K1/K2byte) of data representing transmission-line switching control information about the transmission lines, packetizing the generated data, and outputting a packet. The transmitting section is used for transmitting the packet to the transmitter provided opposite through the transmission lines. This SONET/SDH transmitter further has a redundancy line switching section. The redundancy line switching section is capable of selecting a transmission line, where a transmission signal with information data is transmitted, according to a status in which a packetized specific byte of data from the transmitter opposite is received.
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Japanese Patent Office Notice of Rejection dated Apr. 11, 2006, 2006 for corresponding Japanese Application 2001-326790.
Komatsu Chiyoko
Miyashita Takuya
Morita Hirotaka
Takagi Yoshinobu
Chan Wing
Fujitsu Limited
Katten Muchin & Rosenman LLP
Roberts Brian
LandOfFree
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