Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7493254 | Pitch determination method and apparatus using spectral analysis | Doill Jung | 2009-02-17 |
| 7012186 | 2-phase pitch detection method and apparatus | Doill Jung | 2006-03-14 |