Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Yen Shei | 2011-06-28 |
| 7948985 | Methods, systems, and computer program products for source-aware IP routing at a media gateway | David Z. Lu, Edward Y. Qian, San-Qi Li | 2011-05-24 |
| 7940660 | Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers | David Z. Lu, San-Qi Li, Edward Y. Qian | 2011-05-10 |
| 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, Yen Shei | 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 | David Z. Lu, San-Qi Li, Edward Y. Qian, Yen Shei | 2009-08-04 |
| 6956820 | Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using network-aware media gateway | David Z. Lu, San-Qi Li, Edward Y. Qian | 2005-10-18 |
| 6353593 | Protection architecture for virtual channel connections (VCCS) in a telecommunications network | David X. Chen, Ted Chang, Edward Y. Qian | 2002-03-05 |