Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8195824 | User service profile-based plug-in update method and apparatus for internet protocol television service | Ho-Yeon Park, Ji-Finn Keum, Jun-Hyung Kim, Sung-Oh Hwang | 2012-06-05 |
| 8145209 | Apparatus and method for delivering stream in a mobile broadcast system | Sung-Oh Hwang, Ji-Hye Lee, Eun-Jung Kim | 2012-03-27 |
| 8103209 | Apparatus and method for transmitting/receiving notification message in a broadcasting system, and system thereof | Jong-Hyo Lee, Kook-Heui Lee, Sung-Oh Hwang, Jai-Yong Lee | 2012-01-24 |
| 8055258 | Roaming service method in a mobile broadcasting system, and system thereof | Sung-Oh Hwang, Jong-Hyo Lee, Kook-Heui Lee, Byung-Rae Lee, Jae-Kwon Oh +1 more | 2011-11-08 |
| 7801510 | Authentication method in a mobile broadcast system and system thereof | Sung-Oh Hwang, Jong-Hyo Lee, Kook-Heui Lee | 2010-09-21 |
| 7801513 | Apparatus and method for transmitting/receiving notification message in a broadcasting system, and system thereof | Jong-Hyo Lee, Kook-Heui Lee, Sung-Oh Hwang, Jai-Yong Lee | 2010-09-21 |
| 7577454 | Method and system for collecting opinions of push-to-talk over cellular participants in push-to-talk over cellular network | Sung-Jin Park, Joon-Goo Park, Sang-Kyung Sung | 2009-08-18 |