Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754354 | Audio system and audio interface | — | 2004-06-22 |
| 6691086 | Digital sub-band transmission system with transmission of an additional signal | Yves-Francois Dehery, Gunther Stoll | 2004-02-10 |