Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081754 | Key update method and apparatus thereof | Mi Suk Huh, Hwan-joon Kim | 2011-12-20 |
| 8054975 | Method and system for managing key of home device in broadcast encryption (BE) system | Hwan-joon Kim, Maeng-hee Sung, Weon-il Jin | 2011-11-08 |
| 8055896 | Tag generation method in broadcast encryption system | Weon-il Jin, Maeng-hee Sung, Hwan-joon Kim | 2011-11-08 |
| 8005225 | Hierarchical threshold tree-based broadcast encryption method | Hwan-joon Kim, Sung-joon Park, Weon-il Jin, Dong Hoon Lee | 2011-08-23 |
| 7942335 | Radio frequency system and password management method in radio frequency system | Maeng-hee Sung, Weon-il Jin, Hwan-joon Kim | 2011-05-17 |
| 7929705 | Method of managing user key for broadcast encryption | Weon-il Jin, Hwan-joon Kim, Sung-joon Park, Jung Hee Cheon, Myung Hwan Kim +2 more | 2011-04-19 |
| 7903868 | Video fingerprinting apparatus in frequency domain and method using the same | Hwan-joon Kim, Mi Suk Huh, Won-hyung Lee, Kil Sang Yoo | 2011-03-08 |