Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11790882 | Active noise cancellation filter adaptation with ear cavity frequency response compensation | Lelin Wang, Guoliang Li, Ching-Hua Yeh | 2023-10-17 |
| 11270721 | Systems and methods of pre-processing of speech signals for improved speech recognition | Arun Rajasekaran | 2022-03-08 |
| 11205412 | Hybrid active noise cancellation filter adaptation | Ching-Hua Yeh | 2021-12-21 |
| 11189261 | Hybrid active noise control system | Ching-Hua Yeh, Hsinmin Wang, Jian Mao | 2021-11-30 |
| 10950213 | Hybrid active noise cancellation filter adaptation | Ching-Hua Yeh | 2021-03-16 |
| 10262672 | Audio processing for speech | Ravi Kalluri, Andrew Walters, Luigi Bojan | 2019-04-16 |
| 10015588 | Beamforming optimization for receiving audio signals | Ravi Kalluri, Andrew Walters, Luigi Bojan, Yadong Wang, Vasanthi Vuppuluri | 2018-07-03 |
| 9837102 | User environment aware acoustic noise reduction | Syavosh Zad Issa, Rod G. Fleck, Hundraj S. Gopal | 2017-12-05 |
| 9788109 | Microphone placement for sound source direction estimation | Chun Beng Goh, Douglas L. Beck, Jia Hua, Ilya Khorosh | 2017-10-10 |
| 9723152 | Nonlinear echo suppression | Trausti Thormundsson | 2017-08-01 |
| 9473865 | Integrated motion detection using changes in acoustic echo path | Trausti Thormundsson, Ragnar H. Jonsson, Govind Kannan, Sverrir Olafsson | 2016-10-18 |
| 9426279 | Systems and methods for echo cancellation and echo suppression | Trausti Thormundsson, Yair Kerner, Ragnar H. Jonsson | 2016-08-23 |
| 9407992 | Estimation of reverberation decay related applications | Chris Gao, Govind Kannan, Trausti Thormundsson, Vilhjalmur S. Thorvaldsson | 2016-08-02 |
| 9344579 | Variable step size echo cancellation with accounting for instantaneous interference | Syavosh Zad Issa | 2016-05-17 |
| 9049281 | Nonlinear echo suppression | Trausti Thormundsson | 2015-06-02 |
| 8767974 | System and method for generating comfort noise | Ronald A Fowler, Robert McGurrin, Jenny Q. Jin | 2014-07-01 |
| 8634569 | Systems and methods for echo cancellation and echo suppression | Trausti Thormundsson, Yair Kerner, Ragnar H. Jonsson | 2014-01-21 |
| 7860236 | Method and system for echo cancellation in a network switch | Glenn Kosteva, Jenny Jianqiu Jin, Nick Georgacopoulos | 2010-12-28 |
| 7570608 | Echo canceller disabler for modulated data signals | — | 2009-08-04 |
| 7006458 | Echo canceller disabler for modulated data signals | — | 2006-02-28 |
| 6873701 | System and method for DTMF detection using likelihood ratios | Wenshun Tian | 2005-03-29 |
| 6768796 | System and method for echo cancellation | — | 2004-07-27 |
| 6766020 | System and method for comfort noise generation | Wenshun Tian | 2004-07-20 |
| 6711259 | Method and apparatus for noise suppression and side-tone generation | Raziel Haimi-Cohen | 2004-03-23 |
| 6590972 | DTMF detection based on LPC coefficients | Wenshun Tian | 2003-07-08 |