Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44661 | Method for a cable modem to rapidly switch to a backup CMTS | James R. Forster, Guenter E. Roeck, John T. Chapman, Joanna Qun Zang, Yong Lu | 2013-12-24 |
| 7974201 | Technique and apparatus for using node ID as virtual private network (VPN) identifiers | James R. Forster, Mark W. Litwack | 2011-07-05 |
| 7966409 | Routing protocol based redundancy design for shared-access networks | James R. Forster, Guenter E. Roeck, Richard Woundy, Michael Thomas | 2011-06-21 |
| 7895312 | IP subnet sharing technique implemented without using bridging or routing protocols | — | 2011-02-22 |
| 7817540 | Method and apparatus for N+1 RF switch with passive working path and active protection path | John T. Chapman, Richard Meller, Roland G. Chan, Nicos Achilleoudis | 2010-10-19 |
| 7672230 | Downstream channel change technique implemented in an access network | John T. Chapman, Daniel W. Crocker, Joanna Qun Zang, Yong Lu | 2010-03-02 |
| 7656877 | Apparatus and methods for sniffing data in a cable head end | Ishita Sharan | 2010-02-02 |
| 7656890 | Downstream channel change technique implemented in an access network | John T. Chapman, Daniel W. Crocker, Joanna Qun Zang, Yong Lu | 2010-02-02 |
| 7174376 | IP subnet sharing technique implemented without using bridging or routing protocols | — | 2007-02-06 |
| 7113484 | Downstream channel change technique implemented in an access network | John T. Chapman, Daniel W. Crocker, Joanna Qun Zang, Yong Lu | 2006-09-26 |
| 7068712 | Cable network redundancy architecture | Joanna Qun Zang, James R. Forster, Guenter E. Roeck, Joseph O'Donnell, John Ko-Jen Chen +1 more | 2006-06-27 |
| 7058007 | Method for a cable modem to rapidly switch to a backup CMTS | James R. Forster, Guenter E. Roeck, Joanna Qun Zang, Yong Lu | 2006-06-06 |
| 6839829 | Routing protocol based redundancy design for shared-access networks | James R. Forster, Guenter E. Roeck, Richard Woundy, Michael Thomas | 2005-01-04 |
| 6820210 | System and method for fault recovery for a two line bi-directional ring network | Hon Wah Chin, David Tsiang, George Suwala, Tony Bates | 2004-11-16 |
| 6693878 | Technique and apparatus for using node ID as virtual private network (VPN) identifiers | James R. Forster, Mark W. Litwack | 2004-02-17 |
| 6615362 | System and method for fault recovery for two line bi-directional ring network | Hon Wah Chin, David Tsiang, George Suwala, Tony Bates | 2003-09-02 |
| 6430700 | System and method for fault recovery for a two line bi-directional ring network | Hon Wah Chin, David Tsiang, George Suwala, Tony Bates | 2002-08-06 |
| 6269452 | System and method for fault recovery for a two line bi-directional ring network | Hon Wah Chin, David Tsiang, George Suwala, Tony Bates | 2001-07-31 |
| 6128296 | Method and apparatus for distributed packet switching using distributed address tables | Hon Wah Chin | 2000-10-03 |