Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8504539 | Method of XML document management to selectively cancel specific past operation and system using the same | Dong-Young Lee | 2013-08-06 |
| 8462669 | Method and apparatus for determining PT server having controlling function | — | 2013-06-11 |
| 8416708 | Method and device for controlling floor in push to service | Sung-Mu Son | 2013-04-09 |
| 8171092 | Method for delivering CPM message and server thereof | Hyeon-Soo Lee, Christophe Le Thierry D'Ennequin, Dong-Young Lee | 2012-05-01 |
| 8149738 | Method and terminal for establishing PT session in order to use PT box | — | 2012-04-03 |
| 8111774 | Method for transmitting/receiving signal in MIMO system | Dong-Hee Shim, Hee-Joung Lee | 2012-02-07 |
| 8102773 | Continuous permission to send media | — | 2012-01-24 |
| 8054843 | Method for securing privacy in automatic answer mode of push-to service | Sung Bum Choi | 2011-11-08 |
| 8032411 | Group advertisement method in SIP based message service | Sung-Mu Son | 2011-10-04 |
| 8000246 | Method and device for requesting permission to send media, and method and device for controlling push-to service | — | 2011-08-16 |
| 7991898 | User equipment, method and system for simultaneous session control | Young Hwan Park, Chan-Seok Lim, Jong-Chul Park, Young Ae Kim | 2011-08-02 |
| 7886063 | User equipment, method and system for simultaneous session control | Young Hwan Park, Chan-Seok Lim, Jong-Chul Park, Young Ae Kim | 2011-02-08 |
| 7881220 | System and method for changing duration of talk burst control timer | Kyung-Ae Yoon | 2011-02-01 |
| 7817649 | Session invitation method and system | Young Ae Kim, Kyung-Ae Yoon, Sung Bum Choi, Jong Kim, Kyu-Sung Han | 2010-10-19 |
| 7813749 | Processing media data for SIP based session service | — | 2010-10-12 |
| 7778655 | Mobile communications terminal for controlling user's floor and method thereof | Young Ae Kim, Yong-Suk Lim | 2010-08-17 |
| 7756054 | Method and device for controlling floor in push to service | Sung-Mu Son | 2010-07-13 |
| 7715320 | Method and device for requesting permission to send media, and method and device for controlling Push-To service | — | 2010-05-11 |
| 7623587 | Method for transmitting/receiving signal in MIMO system | Dong-Hee Shim, Hee-Joung Lee | 2009-11-24 |
| 7561528 | System and method for changing duration of talk burst control timer | Kyung-Ae Yoon | 2009-07-14 |
| 7561892 | PT service system and method | Kyung-Ae Yoon, Young Hwan Park, Jong-Chul Park | 2009-07-14 |