Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8315614 | Method and apparatus of transmitting personal information in subscriber-based ringback tone service | Yeong Tae No, Sang-Yun Lee, Ki Mun Kim, Jae Young Park, Soon-Ki Hwang | 2012-11-20 |
| 8238918 | Hand over method from asynchronous mobile communication network to synchronous mobile communication network | Sang-Yun Lee, Jae Young Ju, Young Ho Joo, Bum-Soo Shin, Kyeong-Hee Han | 2012-08-07 |
| 8032121 | System and method for transferring voice messages | Hyuk-Hoon Kwon, Tae Wook Park, Sang-Yun Lee | 2011-10-04 |
| 8032120 | Voice message transmission system, transmission result notification system, and methods thereof | Hyuk-Hoon Kwon, Tae Wook Park, Seung-Ook Je, Sang-Yun Lee, Bong-Ju Kang | 2011-10-04 |
| 8014773 | Mixed mobile communication system of asynchronous communication network and synchronous communication network having handover function of mobile communication terminal, and handover method in the same | Jae Young Ju, Sang-Yun Lee, Soo-Jin Kim, Bum-Soo Shin, Kyeong-Hee Han +3 more | 2011-09-06 |
| 7840209 | Reply voice message transmission system and method thereof | Hyun-Hoon Kwon, Tae Wook Park, Young Ahn Ryu, Il-Weon Cho, Ki Mun Kim | 2010-11-23 |
| 7809362 | Method and apparatus for providing subscriber-based ringback tone | Yeong Tae No, Ki Mun Kim, Sang-Yun Lee | 2010-10-05 |
| 7809800 | Method for providing the location information on a mobile station based on DBM and TCP/IP | Ki Mun Kim, Sang-Yun Lee, Young Ahn Ryu, Young Ho Joo, Jae Young Ju | 2010-10-05 |
| 7769377 | Method for providing a tone replacing sound chosen by a subscriber in call waiting service | Ki Mun Kim, Yeong Tae No, Sang-Yun Lee | 2010-08-03 |
| 7489658 | Dual stack mobile communication system | Soo-Jin Kim, Hyung-joon Cho, Sang-Yun Lee | 2009-02-10 |
| 7447496 | Method for providing subscriber-based ringback tone through a call-orginating exchanger | Ki Mun Kim, Sang-Yun Lee, Yeong Tae No | 2008-11-04 |
| 7433679 | Apparatus and method of providing a history of calling numbers | Sang-Yun Lee, Tae Wook Park, Ki Mun Kim | 2008-10-07 |
| 7400882 | Method for providing a subscriber-based ringback tone sound stored in a mobile exchanger | Ki Mun Kim, Sang-Yun Lee, Yeong Tae No, Jae Young Park | 2008-07-15 |
| 7260406 | Method for tracking location of subscribers in dual stack mobile communication network | Sang-Yun Lee, Ki Mun Kim, Young Ho Joo, Young Ahn Ryu, Jae Young Ju | 2007-08-21 |
| 7257416 | Mobile location based service system and method | Sang-Yun Lee, Ki Mun Kim, Yeong Tae No, Jae Young Ju | 2007-08-14 |
| 7242756 | Method for providing subscriber-based ringback tone in flexible paging mode | Ki Mun Kim, Sang-Yun Lee, Yeong Tee No | 2007-07-10 |
| 7242757 | Method for providing a subscriber-based ringback tone sound | Ki Mun Kim, Sang-Yun Lee, Yeong Tae No, Jae Young Park | 2007-07-10 |
| 7236581 | Method for providing subscriber-based ringback tone with no progress tone | Ki Mun Kim, Yeong Tae No, Sang-Yun Lee | 2007-06-26 |
| 7221952 | Method for processing address of short message service center in IMT-2000 asynchronous network | Il-Weon Cho, Hyung-joon Cho, Sang-Yun Lee | 2007-05-22 |