Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12368988 | Headphones | Lei Cheng | 2025-07-22 |
| 12300209 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | David J. Warkentin, Lei Cheng, Brandon Lee Olmos, Michael P. O'Connell | 2025-05-13 |
| 12262168 | Active noise reduction earbud | Andrew D. Munro, Lei Cheng, Emery M. Ku, Cedrik Bacon | 2025-03-25 |
| 12028675 | Headphone audio controller | — | 2024-07-02 |
| 11875768 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | David J. Warkentin, Lei Cheng, Brandon Lee Olmos, Michael P. O'Connell | 2024-01-16 |
| 11838719 | Active noise reduction earbud | Andrew D. Munro, Lei Cheng, Emery M. Ku, Cedrik Bacon | 2023-12-05 |
| 11689844 | Headphone audio controller | — | 2023-06-27 |
| 11568849 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | David J. Warkentin, Lei Cheng, Brandon Lee Olmos, Michael P. O'Connell | 2023-01-31 |
| 11540043 | Active noise reduction earbud | Andrew D. Munro, Lei Cheng, Emery M. Ku, Cedrik Bacon | 2022-12-27 |
| 11457304 | Headphone audio controller | — | 2022-09-27 |
| 11164554 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | David J. Warkentin, Lei Cheng, Brandon Lee Olmos, Michael P. O'Connell | 2021-11-02 |
| 11062688 | Placement of multiple feedforward microphones in an active noise reduction (ANR) system | — | 2021-07-13 |
| 10665220 | Active noise reduction (ANR) system with multiple feedforward microphones and multiple controllers | — | 2020-05-26 |
| 10609489 | Fabricating an integrated loudspeaker piston and suspension | Csaba Guthy, Mark A. Hayner | 2020-03-31 |
| 9881600 | Acoustically open headphone with active noise reduction | Mihir D. Shetye, Ryan C. Silvestri | 2018-01-30 |