Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9571213 | Tag generation method in broadcast encryption system | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim | 2017-02-14 |
| 8625784 | Broadcast encryption method and broadcast decryption method thereof | Weon-il Jin, Heejean Kim, Baeeun Jung, Tae-Chul Jung, Jong-Hwan Park +4 more | 2014-01-07 |
| 8595496 | Method and system for updating time information of a DRM device | Hee-jean Kim, Weon-il Jin, Bae-eun Jung, Tae-Chul Jung | 2013-11-26 |
| 8578154 | Tag generation method in broadcast encryption system | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim | 2013-11-05 |
| 8566958 | Method for authorizing contents play rights in use of a recording medium | Hwan-joon Kim, Dae-youb Kim, Weon-il Jin | 2013-10-22 |
| 8515074 | User key allocation method for broadcast encryption | Bae-eun Jung, Weon-il Jin, Hee-jean Kim | 2013-08-20 |
| 8509433 | Method and apparatus of generating encryption key for broadcast encryption | Bae-eun Jung, Weon-il Jin, Hee-jean Kim | 2013-08-13 |
| 8055896 | Tag generation method in broadcast encryption system | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim | 2011-11-08 |
| 8054975 | Method and system for managing key of home device in broadcast encryption (BE) system | Dae-youb Kim, Hwan-joon Kim, Weon-il Jin | 2011-11-08 |
| 8056117 | Network and domain-creating method thereof | Bae-eun Jung, Mi Suk Huh | 2011-11-08 |
| 7942335 | Radio frequency system and password management method in radio frequency system | Dae-youb Kim, Weon-il Jin, Hwan-joon Kim | 2011-05-17 |
| 7810113 | Security device and head end in conditional access system and method for controlling illegal use in the system | Dae-youb Kim, Hwan-joon Kim, Weon-il Jin | 2010-10-05 |
| 7779262 | Security method using electronic signature | Dae-youb Kim, Hwan-joon Kim, Weon-il Jin | 2010-08-17 |
| 7760096 | Radio frequency identification (RFID) tag encryption method and system using broadcast encryption (BE) scheme | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Mi Suk Huh | 2010-07-20 |
| 7755469 | Radio frequency identification tag and radio frequency identification privacy protection system and method | Dae-youb Kim, Hwan-joon Kim, Weon-il Jin | 2010-07-13 |
| 7617323 | Method for supporting mutual exclusion function and DRM device thereof | Hee-jean Kim, Perumal Raj Sivaradjane, Varinder Singh, Tae-Chul Jung, Weon-il Jin +1 more | 2009-11-10 |
| 7576651 | Radio frequency identification (RFID) tag encryption method and system using broadcast encryption (BE) scheme | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Mi Suk Huh | 2009-08-18 |
| 7486171 | RFID tag, system for purchasing service by using RFID tag, and method thereof | Hwan-joon Kim, Dae-youb Kim, Weon-il Jin | 2009-02-03 |
| 7158777 | Authentication method for fast handover in a wireless local area network | Kyung-Hee Lee | 2007-01-02 |