Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6714683 | Wavelet based feature modulation watermarks and related applications | Stephen K. Decker | 2004-03-30 |
| 6683966 | Watermarking recursive hashes into frequency domain regions | Stephen K. Decker, Hugh L. Brunk | 2004-01-27 |