Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10397788 | Multimedia message service method and system | Kyung-Tak Lee, Sang-Kyung Sung, Thirumalai Echampadi Seshadri | 2019-08-27 |
| 10313843 | Call processing system and method based on answer mode of push to talk over cellular user | Sang-Kyung Sung, Sung-Jin Park | 2019-06-04 |
| 10117102 | Multimedia message service method and system | Kyung-Tak Lee, Sang-Kyung Sung, Thirumalai Echampadi Seshadri | 2018-10-30 |
| 10090951 | Method and apparatus for sending notification about broadcast service in a mobile broadcast system | Sung-Oh Hwang, Eun-Jung Kim | 2018-10-02 |
| RE46800 | Method and apparatus for selecting a location platform for a user equipment to roam and method for determining a location of a user equipment using the same | Wuk Kim, Joo Young Kim, Sang-Kyung Sung | 2018-04-17 |
| 9930531 | Multimedia message service method and system | Kyung-Tak Lee, Sang-Kyung Sung, Thirumalai Echampadi Seshadri | 2018-03-27 |
| RE46574 | Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service | Yong-Jun Kwak, Hyeon-Woo Lee, Myeong-Sook Seo, Sung-Ho Choi, Sung Hoon Kim | 2017-10-17 |
| 9692536 | Method and apparatus for sending notification about broadcast service in a mobile broadcast system | Sung-Oh Hwang, Eun-Jung Kim | 2017-06-27 |
| 9282101 | Multimedia message service method and system | Kyung-Tak Lee, Sang-Kyung Sung, Thirumalai Echampadi Seshadri | 2016-03-08 |
| 9172731 | Call processing system and method based on answer mode of push to talk over cellular user | Sang-Kyung Sung, Sung-Jin Park | 2015-10-27 |
| 9148782 | Method for determining location of UE by using AGPS information | Wuk Kim, Joo Young Kim | 2015-09-29 |
| RE45545 | Method for locating mobile terminals | Sang-Kyung Sung, Wuk Kim, Joo Young Kim, Jong-Hoon Ahn | 2015-06-02 |
| 8787881 | Multimedia message service method and system | Kyung-Tak Lee, Sang-Kyung Sung, Thirumalai Echampadi Seshadri | 2014-07-22 |
| RE44860 | Paging apparatus and method in a mobile communication system providing multimedia broadcast service | Yong-Jun Kwak, Hyeon-Woo Lee, Myeong-Sook Seo, Sung-Ho Choi, Sung Hoon Kim | 2014-04-22 |
| 8614971 | Apparatus and method for transmitting/receiving control information for supporting multimedia broadcast/multicast service | Soeng-Hun Kim, Sung-Ho Choi, Kook-Heui Lee, Sung-Oh Hwang, Eun-Jung Kim +1 more | 2013-12-24 |
| 8483722 | Method and apparatus for selecting a location platform for a user equipment to roam and method for determining a location of a user equipment using the same | Wuk Kim, Joo Young Kim, Sang-Kyung Sung | 2013-07-09 |
| 8463298 | Method and apparatus for selecting a location platform for a user equipment to roam and method for determining a location of a user equipment using the same | Wuk Kim, Joo Young Kim, Sang-Kyung Sung | 2013-06-11 |
| 8437791 | Method and system for controlling talk time for PoC user | Sung-Jin Park, Sang-Kyung Sung | 2013-05-07 |
| 8208948 | Method and apparatus for selecting a location platform for a user equipment to roam and method for determining a location of a user equipment using the same | Wuk Kim, Joo Young Kim, Sang-Kyung Sung | 2012-06-26 |
| 8150415 | Method for determining location of UE by using AGPS information | Wuk Kim, Joo Young Kim | 2012-04-03 |
| 8099103 | Method for locating mobile terminals | Sang-Kyung Sung, Wuk Kim, Joo Young Kim, Jong-Hoon Ann | 2012-01-17 |
| 8064885 | Method and apparatus for sending notification about broadcast service in a mobile broadcast system | Sung-Oh Hwang, Eun-Jung Kim | 2011-11-22 |
| 8023979 | Method and system for splitting terminals in push-to-talk over cellular network | Sang-Kyung Sung, Wuk Kim | 2011-09-20 |
| 7983698 | Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service | Yong-Jun Kwak, Hyeon-Woo Lee, Myeong-Sook Seo, Sung-Ho Choi, Sung Hoon Kim | 2011-07-19 |
| 7966031 | Method and system for dividing single PoC group session | Sang-Kyung Sung, Kyung-Tak Lee, Sung-Jin Park | 2011-06-21 |