Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11405724 | Method for feedforward active noise control system using analog filter | Cheng-Yuan Chang, Wei-Yen Hsu | 2022-08-02 |
| 11367427 | Method for feedforward active noise control system | Cheng-Yuan Chang, Chong Huang | 2022-06-21 |
| 10515619 | Portable smart electronic device for noise attenuating and audio broadcasting | Cheng-Yuan Chang | 2019-12-24 |
| 10171907 | Fan noise controlling system | Cheng-Yuan Chang | 2019-01-01 |
| 10119441 | Waste air exhausting device having functionality to abate noise and modulate noise frequency | Cheng-Yuan Chang | 2018-11-06 |
| 9866932 | Electronic helmet and method thereof for cancelling noises | Cheng-Yuan Chang | 2018-01-09 |
| 9858915 | Apparatus, system and method for noise cancellation and communication for incubators and related devices | Lichuan Liu | 2018-01-02 |
| 9542924 | Apparatus, system and method for noise cancellation and communication for incubators and related devices | Lichuan Liu | 2017-01-10 |
| 9247346 | Apparatus, system and method for noise cancellation and communication for incubators and related devices | Lichuan Liu | 2016-01-26 |
| 8325934 | Electronic pillow for abating snoring/environmental noises, hands-free communications, and non-invasive monitoring and recording | — | 2012-12-04 |
| 6418227 | Active noise control system and method for on-line feedback path modeling | — | 2002-07-09 |
| 6198828 | Off-line feedback path modeling circuitry and method for off-line feedback path modeling | — | 2001-03-06 |
| 6097823 | Digital hearing aid and method for feedback path modeling | — | 2000-08-01 |
| 5991418 | Off-line path modeling circuitry and method for off-line feedback path modeling and off-line secondary path modeling | — | 1999-11-23 |
| 5940519 | Active noise control system and method for on-line feedback path modeling and on-line secondary path modeling | — | 1999-08-17 |
| 5502770 | Indirectly sensed signal processing in active periodic acoustic noise cancellation | Minjiang Ji, M. Kathryn Christensen, Robert A. Herold | 1996-03-26 |
| 5359662 | Active noise control system | Yi-Cheng Yuan, Nick S. Kapsokavathis, Ke-Horng Chen | 1994-10-25 |