Inventor · disambiguated record
David X. Chen
Also filed as: CHEN DAVID · CHEN DAVID X
13 granted patents·526 citations·filing 1995–2005
94Inventor score
Files withFUJITSU NETWORK COMMUNICATIONS9GEN DATACOMM IND INC2FUJITSU LTD1FUJITSU NETWORKS COMMUNICATION1
Top patents by PatentIndex Score
13 records- 0180US6353593B1Protection architecture for virtual channel connections (VCCS) in a telecommunications networkFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Mar 5, 2002·72 cites·20 claims
- 0280US5659540AApparatus and method for detection of operation administration and management (OAM) cell loopback and physical loopbacks in an asynchronous transfer mode (ATM) networkGEN DATACOMM IND INC·Filed 1995·Granted Aug 19, 1997·64 cites·15 claims
- 0378US6359858B1Switching redundancy controlFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Mar 19, 2002·101 cites·50 claims
- 0473US6700868B2Switching redundancy controlFUJITSU NETWORK COMMUNICATIONS·Filed 2002·Granted Mar 2, 2004·17 cites·22 claims
- 0572US5864555AMethod and apparatus for generating a proxy connection endpoint for operation administration and management (OAM) asynchronous transfer mode (ATM) cellsGEN DATACOMM IND INC·Filed 1996·Granted Jan 26, 1999·91 cites·13 claims
- 0670US6501758B1Hybrid ATM/TDM transport over a common fiber ringFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Dec 31, 2002·37 cites·29 claims
- 0760US6317426B1Method and apparatus for hybrid protection in a switching networkFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Nov 13, 2001·50 cites·16 claims
- 0853US6658006B1System and method for communicating data using modified header bits to identify a portFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Dec 2, 2003·31 cites·17 claims
- 0953US6584119B2Dialable data services/TDM bandwidth managementFUJITSU NETWORK COMMUNICATIONS·Filed 2001·Granted Jun 24, 2003·4 cites·17 claims
- 1049US6891836B1Switching complex architecture and operationFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted May 10, 2005·23 cites·23 claims
- 1148US7701892B2Switching complex architecture and operationFUJITSU LTD·Filed 2005·Granted Apr 20, 2010·0 cites·14 claims
- 1245US6498792B1Method and apparatus for switching signals of multiple different communication protocolsFUJITSU NETWORK COMMUNICATIONS·Filed 1999·Granted Dec 24, 2002·30 cites·18 claims
- 1338US6396847B1Dialable data services/TDM bandwidth managementFUJITSU NETWORKS COMMUNICATION·Filed 1999·Granted May 28, 2002·6 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →