Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6915002 | Multi-carrier watermarks using carrier signals modulated with auxiliary messages | — | 2005-07-05 |
| 6850626 | Methods employing multiple watermarks | Geoffrey B. Rhoads | 2005-02-01 |