Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040899 | Methods, systems, and computer program products for implementing automatic protection switching for media packets transmitted over an ethernet switching fabric | David Z. Lu | 2011-10-18 |
| 7969890 | Methods, systems, and computer program products for load balanced and symmetric path computations for VoIP traffic engineering | Edward Y. Qian, San-Qi Li, David Z. Lu, Rupert Zhu | 2011-06-28 |
| 7961739 | Systems and methods for voice over multiprotocol label switching | Sam Perry, Richard James Bianconi | 2011-06-14 |
| 7940772 | Methods, systems, and computer program products for transporting ATM cells in a device having an ethernet switching fabric | Jinshui Liu, Weisheng Chen, Eric Chang, David Z. Lu | 2011-05-10 |
| 7911940 | Adaptive redundancy protection scheme | — | 2011-03-22 |
| 7864665 | Methods and systems for detecting IP route failure and for dynamically re-routing VoIP sessions in response to failure | Christopher J. Ouellette, Samuel Perry | 2011-01-04 |
| 7809128 | Methods and systems for per-session traffic rate policing in a media gateway | San-Qi Li | 2010-10-05 |
| 7764605 | Methods and systems for measurement-based call admission control in a media gateway | Ju Wu, Samuel Perry, Christopher J. Ouellette | 2010-07-27 |
| 7725708 | Methods and systems for automatic denial of service protection in an IP device | Ju Wu | 2010-05-25 |
| 7715403 | Methods, systems, and computer program products for load balanced and symmetric path computations for VoIP traffic engineering | Edward Y. Qian, San-Qi Li, David Z. Lu, Rupert Zhu | 2010-05-11 |
| 7570594 | Methods, systems, and computer program products for multi-path shortest-path-first computations and distance-based interface selection for VoIP traffic | Rupert Zhu, David Z. Lu, San-Qi Li, Edward Y. Qian | 2009-08-04 |
| 7492767 | Methods, systems, and computer program products for throttling network address translation (NAT) learning traffic in a voice over IP device | David Z. Lu, San-Qi Li | 2009-02-17 |
| 7447220 | Methods and systems for packet classification with improved memory utilization in a media gateway | David Z. Lu | 2008-11-04 |
| 7424025 | Methods and systems for per-session dynamic management of media gateway resources | Edward Y. Qian, David Z. Lu, San-Qi Li, Weijun Lee | 2008-09-09 |