Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7751841 | Method and system for processing PoC call based on answer mode of push to talk over cellular system client | Joon-Goo Park, Kyung-Tak Lee, Sung-Jin Park | 2010-07-06 |
| 7751842 | Method and system for processing PoC ad-hoc group session information using RTCP connection message | Wuk Kim, Sung-Jin Park, Ji-Hye Lee | 2010-07-06 |
| 7738894 | Method and system for performing media storage service in push-to-talk over cellular network | Hyeon-Cheol Pu, Sung-Jin Park | 2010-06-15 |
| 7711381 | System, method, and user equipment for managing the floor for multimedia communication service in PoC system | Ji-Hye Lee, Sung-Jin Park | 2010-05-04 |
| 7693533 | Method and system for merging multiple push-to-talk over cellular sessions | Joon-Goo Park, Sung-Jin Park | 2010-04-06 |
| 7676548 | System and method for providing a presence service | Jae-Kwon Oh, Wuk Kim | 2010-03-09 |
| 7623883 | Method and system for identifying respondent client in push-to-talk over cellular network | Joon-Goo Park | 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, Joon-Goo Park, 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, Joon-Goo Park, Bo-Sun Jung | 2009-08-18 |
| 7526293 | Apparatus and method for locating mobile terminals | Wuk Kim, Joon-Goo Park | 2009-04-28 |
| 7522932 | Method and system for deleting floor in PoC system | Sung-Jin Park, Joon-Goo Park | 2009-04-21 |
| 7477681 | Method for generating a preamble sequence group | Hyoung-Gwan Kim, Jae-Yoel Kim, Joon-Goo Park, Jae Woon Park | 2009-01-13 |
| 7366229 | Method for generating a preamble sequence group | Hyoung-Gwan Kim, Jae-Yoel Kim, Joon-Goo Park, Jae Woon Park | 2008-04-29 |
| 7272401 | Apparatus and method for determining position information of user equipment | Wuk Kim, Joon-Goo Park, Jae Woon Park | 2007-09-18 |