DQ

David Cheng-Song Qi

CI Cisco: 4 patents #3,368 of 13,007Top 30%
📍 Westford, MA: #351 of 1,013 inventorsTop 35%
🗺 Massachusetts: #27,608 of 88,656 inventorsTop 35%
Overall (All Time): #1,241,328 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7646763 Method and apparatus for improving voice band data (VBD) connectivity in a communications network Yan Wang, Timothy G. Wade 2010-01-12
7609646 Method and apparatus for eliminating false voice detection in voice band data service Yan Wang, Timothy G. Wade 2009-10-27
7583621 Method and apparatus for suppressing echo cancelling in a packet switched network Yan Wang, Timothy G. Wade, William Page 2009-09-01
7359489 Method and apparatus for inclusive echo canceller testing William Page, Yan Wang, Timothy G. Wade, Mark Milot, Ibrahim Yavuz 2008-04-15