Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7688993 | Software and method for embedding data in two color images | Huijuan Yang, Jun Liu | 2010-03-30 |
| 7324662 | Method, software, and device for hiding data in binary image, while preserving image quality | Huijuan Yang, Haiping Lu | 2008-01-29 |