Inventor
Duanpei Wu
Inventor
San Jose, CA, US
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television38%
G10LSpeech analysis techniques or speech synthesis25%
H04LTransmission of digital information, e.g. telegraphic communication25%
H04MTelephonic communication6%
D05BSewing2%
G05BControl or regulating systems in general2%
H01LSemiconductor devices2%
PatentTitleYear
9,894,397'Controlling bit-rates for media streaming sessions'20189,774,463'Optimizing user experiences of web conferences that send data with source-specific multicast and automatic multicast tunneling'20179,591,037'Distributed audio mixing and forwarding'20179,577,947'System and architecture to optimize video traffic over internet protocol networks'20179,137,486'System and method for video conferencing'20158,982,702'Control of rate adaptive endpoints'20158,868,735'Wide area network optimization'20148,811,167'Shaping multimedia stream bit-rates to adapt to network conditions'20148,760,490'Techniques for a rate-adaptive video conference bridge'20148,713,105'Method and apparatus for transcoding and transrating in distributed video systems'20148,666,042'Techniques for performing key frame requests in media servers and endpoint devices'20148,659,636'System and method for performing distributed video conferencing'20148,654,761'System for conealing missing audio waveforms'20148,619,118'System and method for video conferencing'20138,614,732'System and method for performing distributed multipoint video conferencing'20138,576,272'Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference'20138,379,077'Automatic layout and speaker selection in a continuous presence video conference'20138,340,078'System for concealing missing audio waveforms'20128,179,422'System and method for video conferencing'20127,940,294'Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference'20117,929,012'Method and architecture for distributed video switching using media notifications'20117,907,594'Marking keyframes for a communication session'20117,477,282'System and method for performing distributed video conferencing'20097,321,384'Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference'20087,084,898'System and method for providing video conferencing synchronization'20066,989,856'System and method for performing distributed video conferencing'20066,826,528'Weighted frequency-channel background noise suppressor'20046,778,959'System and method for speech verification using out-of-vocabulary models'20046,751,588'Method for performing microphone conversions in a speech recognition system'20046,718,302'Method for utilizing validity constraints in a speech endpoint detector'20046,473,735'System and method for speech verification using a confidence measure'20026,272,460'Method for implementing a speech verification system for use in a noisy environment'20016,230,122'Speech detection with noise suppression based on principal components analysis'20016,216,103'Method for implementing a speech recognition system to determine speech endpoints during conditions with background noise'20016,173,258'Method for reducing noise distortions in a speech recognition system'20016,006,186'Method and apparatus for a parameter sharing speech recognition system'19995,748,843'Apparatus and method for voice controlled apparel manufacture'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Based in Clemson, SC, US· patent location history
1999–2004Patents assigned to SONY CORP (10)· patent assignee history
1999–2004Patents assigned to SONY ELECTRONICS INC (10)· patent assignee history
1999–2001Based in Sunnyvale, CA, US· patent location history
2002–2018Based in San Jose, CA, US· patent location history
2006–2018Patents assigned to CISCO TECH INC (25)· patent assignee history
2012–2018Patents assigned to WU DUANPEI (13)· patent assignee history
2012–2014Patents assigned to SARKAR SHANTANU (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CISCO TECH INC | 25 | 2006–2018 |
| WU DUANPEIself | 13 | 2012–2018 |
| SONY CORP | 10 | 1999–2004 |
| SONY ELECTRONICS INC | 10 | 1999–2004 |
| SARKAR SHANTANU | 5 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 31 | 2002–2018 |
| Sunnyvale, California, US | 5 | 1999–2001 |
| Clemson, SC, US | 1 | 1998 |