Wai Chung Chu
38Patents
10h-index
30Co-inventors
75Inventor score
Filing activity: Apr 29, 2002 → Nov 7, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9489948B1 | Sound source localization using multiple microphone arrays | Electricity | 388 | Active |
| US8983089B1 | Sound source localization using multiple microphone arrays | Electricity | 59 | Active |
| US9560446B1 | Sound source locator with distributed microphone array | Electricity | 44 | Active |
| US9621984B1 | Methods to process direction data of an audio input device using azimuth values | Electricity | 26 | Active |
| US9818425B1 | Parallel output paths for acoustic echo cancellation | Physics | 21 | Active |
| US8885815B1 | Null-forming techniques to improve acoustic echo cancellation | Physics | 19 | Active |
| US7426470B2 | Energy-based nonuniform time-scale modification of audio signals | Physics | 13 | Expired |
| US9753119B1 | Audio and depth based sound source localization | Physics | 13 | Active |
| US8855295B1 | Acoustic echo cancellation using blind source separation | Physics | 12 | Active |
| US9767828B1 | Acoustic echo cancellation using visual cues | Electricity | 10 | Active |
| US10115411B1 | Methods for suppressing residual echo | Physics | 9 | Active |
| US9319787B1 | Estimation of time delay of arrival for microphone arrays | Electricity | 6 | Active |
| US11217235B1 | Autonomously motile device with audio reflection detection | Electricity | 5 | Active |
| US10867617B1 | Techniques for processing audio data | Electricity | 5 | Active |
| US11107492B1 | Omni-directional speech separation | Electricity | 5 | Active |
| US10966022B1 | Sound source localization using multiple microphone arrays | Electricity | 4 | Active |
| US9390723B1 | Efficient dereverberation in networked audio systems | Physics | 4 | Active |
| US10755727B1 | Directional speech separation | Electricity | 4 | Active |
| US11545172B1 | Sound source localization using reflection classification | Physics | 3 | Active |
| US9351089B1 | Audio tap detection | Physics | 3 | Active |
| US9373338B1 | Acoustic echo cancellation processing based on feedback from speech recognizer | Physics | 3 | Active |
| US9081083B1 | Estimation of time delay of arrival | Physics | 2 | Active |
| US11915698B1 | Sound source localization | Physics | 2 | Active |
| US7231344B2 | Method and apparatus for gradient-descent based window optimization for linear prediction analysis | Physics | 2 | Expired |
| US10242695B1 | Acoustic echo cancellation using visual cues | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.