Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12250526 | Audio beamforming with nulling control system and methods | Michael Ryan Lester | 2025-03-11 |
| 11785380 | Hybrid audio beamforming system | John Casey Gibbs, Michael Ryan Lester, Mathew T. Abraham | 2023-10-10 |
| 11688418 | Low latency automixer integrated with voice and noise activity detection | Ross Lawrence Penniman, Michael Ryan Lester, Michelle Michiko Ansai, Michael Harrison Prosinski, David Andrew VerLee | 2023-06-27 |
| 11670311 | Time domain spectral bandwidth replication | Michael Ryan Lester | 2023-06-06 |
| 11610597 | Anti-causal filter for audio signal processing | Michael Ryan Lester | 2023-03-21 |
| 11302347 | Low latency automixer integrated with voice and noise activity detection | Ross Lawrence Penniman, Michael Ryan Lester, Michelle Michiko Ansai, Michael Harrison Prosinski, David Andrew VerLee | 2022-04-12 |
| 10978083 | Time domain spectral bandwidth replication | Michael Ryan Lester | 2021-04-13 |
| 8340285 | Method for efficient and zero latency filtering in a long impulse response system | — | 2012-12-25 |
| 6873701 | System and method for DTMF detection using likelihood ratios | Youhong Lu | 2005-03-29 |
| 6766020 | System and method for comfort noise generation | Youhong Lu | 2004-07-20 |
| 6738733 | G.723.1 audio encoder | — | 2004-05-18 |
| 6590972 | DTMF detection based on LPC coefficients | Youhong Lu | 2003-07-08 |
| 6424687 | Method and device for alignment of audio data frames using interpolation and decimation | Kah Yong | 2002-07-23 |
| 6327689 | ECC scheme for wireless digital audio signal transmission | — | 2001-12-04 |
| 6295520 | Multi-pulse synthesis simplification in analysis-by-synthesis coders | — | 2001-09-25 |