Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7797006 | Method and system for guaranteeing seamless session when replacing PoC terminal in PoC system | Sang-Kyung Sung, Jea-Hun Han | 2010-09-14 |
| 7751841 | Method and system for processing PoC call based on answer mode of push to talk over cellular system client | Sang-Kyung Sung, Kyung-Tak Lee, Sung-Jin Park | 2010-07-06 |
| 7747262 | 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 | 2010-06-29 |
| 7693112 | Apparatus and method for controlling packet data to provide multimedia broadcast/multicast services in a CDMA mobile communication system | Jin-Weon Chang, Kook-Heui Lee, Sung Hoon Kim | 2010-04-06 |
| 7693533 | Method and system for merging multiple push-to-talk over cellular sessions | Sang-Kyung Sung, Sung-Jin Park | 2010-04-06 |
| 7630725 | 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 | 2009-12-08 |
| 7623883 | Method and system for identifying respondent client in push-to-talk over cellular network | Sang-Kyung Sung | 2009-11-24 |
| 7616963 | Positioning apparatus and method of a mobile terminal using a positioning server independently constructed on a network | Joo Young Kim, Wuk Kim, Sang-Kyung Sung, Hyeon-Woo Lee | 2009-11-10 |
| 7577454 | Method and system for collecting opinions of push-to-talk over cellular participants in push-to-talk over cellular network | Sung-Jin Park, Sang-Kyung Sung, Bo-Sun Jung | 2009-08-18 |
| 7526293 | Apparatus and method for locating mobile terminals | Wuk Kim, Sang-Kyung Sung | 2009-04-28 |
| 7522932 | Method and system for deleting floor in PoC system | Sung-Jin Park, Sang-Kyung Sung | 2009-04-21 |
| 7477681 | Method for generating a preamble sequence group | Hyoung-Gwan Kim, Sang-Kyung Sung, Jae-Yoel Kim, Jae Woon Park | 2009-01-13 |
| 7450545 | Apparatus and method for determining soft handover in a CDMA mobile communication system providing MBMS service | Young-Bum Kim, Sung-Ho Choi, Chae-Man Lim, Kook-Heui Lee, Soeng-Hun Kim +1 more | 2008-11-11 |
| 7366229 | Method for generating a preamble sequence group | Hyoung-Gwan Kim, Sang-Kyung Sung, Jae-Yoel Kim, Jae Woon Park | 2008-04-29 |
| 7313116 | Method of performing inter-RAT measurement for a handover from NB-TDD to GSM | Kook-Heui Lee, Hyeon-Woo Lee, Sung-Ho Choi, Jeong-Gon Kim | 2007-12-25 |
| 7307971 | Soft handover method for multimedia broadcast/multicast service in a CDMA mobile communication system | Sung-Ho Choi, Jin-Weon Chang, Kook-Heui Lee, Soeng-Hun Kim, Ju-Ho Lee | 2007-12-11 |
| 7301927 | Apparatus and method for multimedia broadcast/multicast service in a mobile communication system | Kook-Heui Lee, Sung-Ho Choi, Soeng-Hun Kim | 2007-11-27 |
| 7299065 | Method for transmitting HSDPA service information in a CDMA mobile communication system | Sung-Ho Choi, Hyeon-Woo Lee, Kook-Heui Lee, Seong-Hun Kim, Jin-Weon Chang | 2007-11-20 |
| 7286540 | Method for allocating HARQ channel number for indicating state information in an HSDPA communication system | Sung Hoon Kim, Hyeon-Woo Lee, Kook-Heui Lee, Ju-Ho Lee, Sung-Ho Choi +1 more | 2007-10-23 |
| 7272401 | Apparatus and method for determining position information of user equipment | Wuk Kim, Jae Woon Park, Sang-Kyung Sung | 2007-09-18 |
| 7209463 | Transmission time adjusting apparatus and method between RNC and UE in a CDMA communication system | Sung-Ho Choi, Hyeon-Woo Lee | 2007-04-24 |
| 7200124 | Signal measurement apparatus and method for handover in a mobile communication system | Jung Gon Kim, Hyeon-Woo Lee, Sung-Ho Choi, Ju-Ho Lee, Hyoung-Gwan Kim +9 more | 2007-04-03 |
| 7171212 | Method for setting up signaling connection in a mobile communication system | Soeng-Hun Kim, Sung-Ho Choi, Kook-Heui Lee | 2007-01-30 |
| 7054633 | Apparatus and method for transmitting and receiving uplink power offset information in a mobile communication system supporting HSDPA | Myeong-Sook Seo, Ju-Ho Lee, Sung-Ho Choi, Yong-Jun Kwak, Kook-Heui Lee | 2006-05-30 |