Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642422 | Digital surround sound method and apparatus | Stephen Hon | 1997-06-24 |
| 5630175 | Surround sound system for general purpose computer using dual sound cards | Witold Gajewski, Richard Morgan Helms, Stephen Hon, Peter G. Moogk | 1997-05-13 |