Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6714658 | Detection of auxiliary data in an information signal | Antonius Kalker | 2004-03-30 |
| 6707930 | Method and arrangement for embedding a watermark in an information signal | Antonius Kalker | 2004-03-16 |