Issued Patents All Time
Showing 1–25 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9867166 | Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof | Sung Hyun Hwang, Myung Sun Song, Jung Sun UM | 2018-01-09 |
| 9635561 | Method and system of distributed sensing for reducing spectrum sensing overhead in cognitive wireless multi-hop networks | Kyung-Yul Cheon, Young Bae Ko, Jae Beom Kim | 2017-04-25 |
| 9332440 | Method of frequency channel assignment using effective spectrum sensing in multiple frequency assignment system | Bub Joo Kang, Myung Sun Song | 2016-05-03 |
| 9294327 | Method for identifying OFDM communication signal using OFDM symbol estimation | Hyung Jung Kim, Jin Young Kim, Seung Ho Choi | 2016-03-22 |
| 9215661 | Transmission power control method and device for cognitive radio device | Sung Hyun Hwang, Gwangzeen Ko, Myung Sun Song, Jung Sun UM, Min-Sheo Choi | 2015-12-15 |
| 9210712 | Apparatus and method for controlling subcarrier spacing in a wireless communication system | Sung Hyun Hwang, Jung Sun UM, Hoi Yoon JUNG, Gwang Zeen KO, Byung Jang Jeong | 2015-12-08 |
| 8995409 | Communication method using a preamble to share characteristic information, method for generating the preamble, and communication system to which the methods are applied | Jung Sun UM, Sung Hyun Hwang, Hoi Yoon JUNG, Byung Jang Jeong, Gwang Zeen KO | 2015-03-31 |
| 8964886 | Method and device for transmitting a preamble in a wireless communication system | Jung Sun UM, Sung Hyun Hwang, Sang Won Kim, Byung Jang Jeong | 2015-02-24 |
| 8964640 | Hybrid beaconing method | Gwangzeen Ko, Moon-Won Lee, Sung-Jin You, Sung Hyun Hwang, Jung Sun UM +1 more | 2015-02-24 |
| 8886129 | Method and device for evaluating influence of electromagnetic waves of base station on human body | Byung Chan Kim, Je Hoon Yun | 2014-11-11 |
| 8861551 | Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof | Sung Hyun Hwang, Myung Sun Song, Jung Sun UM | 2014-10-14 |
| 8855144 | Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof | Sung Hyun Hwang, Myung Sun Song, Jung Sun UM | 2014-10-07 |
| 8787271 | Method and device for communication between devices with different transmission coverage | Jung Sun UM, Gwangzeen Ko, Sung Hyun Hwang, Myung Sun Song | 2014-07-22 |
| 8693410 | Method and apparatus of hybrid burst mapping in OFDMA systems | Sung Hyun Hwang, Jung Sun UM, Myung Sun Song, Gwangzeen Ko | 2014-04-08 |
| 8675594 | Method for sensing spectrum and arranging quiet period in cognitive radio system, customer premise equipment, base station and superframe structure using the same | Bub Joo Kang, Gwangzeen Ko, Sung Hyun Hwang, Myung Sun Song | 2014-03-18 |
| 8661143 | Reserving resources in centralized network by scanning superframes equal to or greater than maximum number of superframes allowed without listening to beacon period | Moon-Won Lee, Sung-Jin You, Gwangzeen Ko, Myung Sun Song | 2014-02-25 |
| 8654011 | Shaped-beam antenna with multi-layered metallic disk array structure surrounded by dielectric ring | Soon-Young Eom, Je Hoon Yun, Soon-Ik Jeon | 2014-02-18 |
| 8639736 | Method and apparatus for detecting signal using cyclo-stationary characterisitics | Sunmin Lim, Sang Won Kim, Changhyun PARK, Myung Sun Song, Gwangzeen Ko | 2014-01-28 |
| 8618993 | Loop antenna | Je Hoon Yun, Jung Ick MOON, Soon-Soo Oh, Min Sung Kwon, Sung-Uk You +1 more | 2013-12-31 |
| 8619699 | Channel switching apparatus and method of a base station and channel switching apparatus and method of a terminal based on the cognitive radio system | Gwangzeen Ko, Sung-Jin You, Myung Sun Song, Sung Hyun Hwang, Jung Sun UM | 2013-12-31 |
| 8600418 | Relay station for cell information exchange between adjacent BSs over air links in cellular systems | Gwangzeen Ko, Myung Sun Song, Sung Hyun Hwang, Sung-Jin You, Jung Sun UM | 2013-12-03 |
| 8600140 | Image reconstruction apparatus and method for reconstructing image of microwave tomography thereof | Soon-Ik Jeon, Simonov NIKOLAI, Seong-Ho Son, Hyuk KIM, Jong Moon LEE +1 more | 2013-12-03 |
| 8488526 | Network communication method and network device using preamble | Sung Hyun Hwang, Jung Sun UM, Gwangzeen Ko, Myung Sun Song | 2013-07-16 |
| 8477799 | Method for using flexible bandwidth in OFDMA-based cognitive radio system, base station and subscriber station using the same | Sung Hyun Hwang, Myung Sun Song, Yun-Hee Kim, Gwangzeen Ko, Jung Sun UM | 2013-07-02 |
| 8471774 | Apparatus and method for measuring antenna radiation patterns | Soon-Soo Oh, Yong-Heui Cho, In Kui CHO, Je Hoon Yun, Soon-Ik Jeon | 2013-06-25 |