Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10523823 | Dual-tone multi-frequency digit detection in a wireless communication system | — | 2019-12-31 |
| 9343078 | Pre-process (amplitude distortion) and post-process (phase synchronization) for linear AEC system | Sanghyun Chi | 2016-05-17 |
| 9282413 | Apparatus and method for automatic audio system and recovery from unexpected behaviors | Sanghyun Chi, Wendeline Ruth Avis | 2016-03-08 |
| 8954322 | Acoustic shock protection device and method thereof | Sanghyun Chi | 2015-02-10 |
| 8934622 | Method for detecting double-talk condition and system using the same | Sanghyun Chi | 2015-01-13 |
| 7283012 | Tri-state pulse density modulator | — | 2007-10-16 |