Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9846941 | Method for setting event rules and event monitoring apparatus using same | Hee-yul Lee, Gwang-gook Lee | 2017-12-19 |
| 9691141 | Image correction device for accelerating image correction and method for same | Seung Ho Shin | 2017-06-27 |
| 9478032 | Image monitoring apparatus for estimating size of singleton, and method therefor | Gwang-gook Lee, Hee-yul Lee | 2016-10-25 |
| 9311719 | Image monitoring apparatus for estimating gradient of singleton, and method therefor | Gwang-gook Lee | 2016-04-12 |
| 9230166 | Apparatus and method for detecting camera tampering using edge image | Hee-yul Lee | 2016-01-05 |
| 8315614 | Method and apparatus of transmitting personal information in subscriber-based ringback tone service | Yeong Tae No, Sang-Yun Lee, Hee-Hyeok Hahm, Jae Young Park, Soon-Ki Hwang | 2012-11-20 |
| 8259622 | System and method for providing packet network-based multimedia ringback tone service | Won Jun Lee, Jae-Yong Park, Min Seok Kim, Young Ho Joo | 2012-09-04 |
| 7840209 | Reply voice message transmission system and method thereof | Hyun-Hoon Kwon, Tae Wook Park, Young Ahn Ryu, Il-Weon Cho, Hee-Hyeok Hahm | 2010-11-23 |
| 7809362 | Method and apparatus for providing subscriber-based ringback tone | Yeong Tae No, Hee-Hyeok Hahm, Sang-Yun Lee | 2010-10-05 |
| 7809800 | Method for providing the location information on a mobile station based on DBM and TCP/IP | Sang-Yun Lee, Hee-Hyeok Hahm, 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 | Yeong Tae No, Sang-Yun Lee, Hee-Hyeok Hahm | 2010-08-03 |
| 7447496 | Method for providing subscriber-based ringback tone through a call-orginating exchanger | Hee-Hyeok Hahm, Sang-Yun Lee, Yeong Tae No | 2008-11-04 |
| 7433679 | Apparatus and method of providing a history of calling numbers | Sang-Yun Lee, Hee-Hyeok Hahm, Tae Wook Park | 2008-10-07 |
| 7400882 | Method for providing a subscriber-based ringback tone sound stored in a mobile exchanger | Hee-Hyeok Hahm, 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, Hee-Hyeok Hahm, Young Ho Joo, Young Ahn Ryu, Jae Young Ju | 2007-08-21 |
| 7257416 | Mobile location based service system and method | Sang-Yun Lee, Hee-Hyeok Hahm, Yeong Tae No, Jae Young Ju | 2007-08-14 |
| 7242756 | Method for providing subscriber-based ringback tone in flexible paging mode | Hee-Hyeok Hahm, Sang-Yun Lee, Yeong Tee No | 2007-07-10 |
| 7242757 | Method for providing a subscriber-based ringback tone sound | Hee-Hyeok Hahm, Sang-Yun Lee, Yeong Tae No, Jae Young Park | 2007-07-10 |
| 7236581 | Method for providing subscriber-based ringback tone with no progress tone | Yeong Tae No, Sang-Yun Lee, Hee-Hyeok Hahm | 2007-06-26 |
| 7171200 | Method and apparatus for providing subscriber-based ringback tone | Yeong Tae No, Hee Hahm, Sang-Yun Lee | 2007-01-30 |