Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6748533 | Method and apparatus for protecting the legitimacy of an article | Jiankang Wu, Huijie Deng | 2004-06-08 |
| 6678389 | Method and apparatus for embedding digital information in digital multimedia data | Jiankang Wu, Huijie Deng | 2004-01-13 |
| 6674861 | Digital audio watermarking using content-adaptive, multiple echo hopping | Changsheng Xu, Jiankang Wu, Kai Xin, Haizhou Li | 2004-01-06 |