Network connection device and signal processing method in the network connection device

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United States of America Patent

PATENT NO 8228788
APP PUB NO 20090245782A1





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A network connection device for performing a process of transmitting and receiving a SONET/SDH frame includes a first protocol processor which processes a first network management protocol; a second protocol processor which processes a second network management protocol; a frame header extractor which extracts a header from the received SONET/SDH frame; and a protocol identifier which identifies a network management protocol based on the extracted frame header. The network connection device selects one of a control signal outputted from the first protocol processor and a control signal outputted from the second protocol processor based on a result of the identification, and outputs the control signal.

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Patent Owner(s)

Patent OwnerAddressTotal Patents

International Classification(s)


Inventor Name Address # of filed Patents Total Citations
Moriyama, Junichi Numazu, JP 28 307
Shirai, Katsuhiro Kawasaki, JP 12 57

Cited Art Landscape

Patent Info (Count) # Cites Year
Other [Check patent profile for assignment information] (1)
* 2007/0081,466 ATM cell service apparatus accommodating an ATM cell in an optical asynchronous communications network through a North America asynchronous communications network 1 2006
* 2004/0136,389 Telecommunications networks 5 2003
* 6957271 Node capable of saving a third layer packet handling operation in a synchronous optical network 5 2000
BULL S.A. (1)
* 5568487 Process for automatic conversion for porting telecommunications applications from the TCP/IP network to the OSI-CO network, and module used in this process 118 1994
* 2006/0126,662 Methods for sending and receiving network management messages and/or control messages 2 2005
* 2007/0248,004 Transmission apparatus and data communication channel processing method 1 2006
* 5841764 Method and apparatus for permitting a radio to originate and receive data messages in a data communications network 120 1995
* Cited By Examiner

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