Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9054881 | Radio frequency identification (RFID) tag and interrogator for supporting normal mode and secure mode, and operation method thereof | Sang Yeoun Lee, Kang Bok Lee, Dong-Beom Shin, Hyun-Seok Kim, You Sung Kang +3 more | 2015-06-09 |
| 9030217 | Semiconductor wafer and method for auto-calibrating integrated circuit chips using PLL at wafer level | Hyunseok Kim, Su Na CHOI, Cheol Sig Pyo | 2015-05-12 |
| 9004367 | Radio frequency identification (RFID) tag and method of updating key of RFID tag | Sang Yeoun Lee, Joo Sang Park, Chan-Won Park | 2015-04-14 |
| 8967457 | Total history management system and method using radio frequency identification (RFID) tag and barcode | Dong-Beom Shin, Sang Hyun Mo, Kang Bok Lee, Jae Heum Lee, Cheol Sig Pyo | 2015-03-03 |
| 8878650 | RFID security reader | Dong-Beom Shin, Sang Yeoun Lee, Hyunseok Kim, Su Na CHOI, Kang Bok Lee +1 more | 2014-11-04 |
| 8791857 | System and method for indoor location tracking using pseudo GPS signal transmitter | Sang Hyun Mo, Jae Heum Lee, Seung Il Myong, Hoe-Sung Yang, Kang Bok Lee +1 more | 2014-07-29 |
| 8787514 | Apparatus and method for generating pseudo noise code | Seung Il Myong, Jong-Sub Cha, Sang Hyun Mo, Jae Heum Lee, Jong-Suk Chae | 2014-07-22 |
| 8779896 | RFID reader and method for controlling gain thereof | Dong-Beom Shin, Jae Young Jung, Sang Yeoun Lee, Gil-Young Choi, Jong-Suk Chae | 2014-07-15 |
| 8767699 | Apparatus and method for transmitting packet data in wireless sensor network | Hyung-Rae Park, Jongsub Cha, Sang Hyun Mo, Seung Il Myong, Jong-Suk Chae | 2014-07-01 |
| 8633803 | Apparatus and method for locating RFID tag | Sang Hyun Mo, Jae Heum Lee, Seung Il Myong, Hoe-Sung Yang, Jong-Suk Chae +3 more | 2014-01-21 |
| 8607333 | Radio frequency identification (RFID) security apparatus having security function and method thereof | Sang Yeoun Lee, You Sung Kang, Doo Ho Choi, Yong-Je Choi, Hyunseok Kim +4 more | 2013-12-10 |
| 8587409 | Radio security leader controlling operation mode, and radio security tag supporting security mode and normal mode | Sang Yeoun Lee, You Sung Kang, Kang Bok Lee, Su Na CHOI, Hyun-Seok Kim +2 more | 2013-11-19 |
| 8519827 | Method of generating activation code for radio frequency identification tag | Hyunseok Kim, Su Na CHOI, Nak-Seon Seong, Cheol Sig Pyo, Jong-Suk Chae | 2013-08-27 |
| 8442167 | Multistage channel estimation method and apparatus | Seung Il Myong, Hoe-Sung Yang, Dong-Beom Shin, Nak-Seon Seong, Cheol Sig Pyo | 2013-05-14 |
| 8422593 | Parallel automatic frequency offset estimation method and apparatus | Seung Il Myong, Jong-Sub Cha, Hoe-Sung Yang, Kang Bok Lee, Jong-Suk Chae | 2013-04-16 |
| 8405487 | RFID sensor tag and sensor data storing method | Kang Bok Lee, Sang Yeoun Lee, Jong-Suk Chae | 2013-03-26 |
| 8401053 | Active RFID apparatus for improving PN code generation | Jong-Sub Cha, Seung Il Myong, Sang Hyun Mo, Jong-Suk Chae | 2013-03-19 |
| 8314703 | Apparatus and method for managing product distribution using security tag | Kang Bok Lee, Sang Yeoun Lee, Jae Heum Lee, Dong-Beom Shin, Hyunseok Kim +3 more | 2012-11-20 |
| 8274374 | Synchronization method between reader and tag | Hyunseok Kim, Su Na CHOI, Nak-Seon Seong, Cheol Sig Pyo, Jong-Suk Chae | 2012-09-25 |
| 8050562 | Apparatus for implementing electro-optical CATV network and signal processing method used by the apparatus | Jae-Hoon YU, Dong-Beom Shin, Hong Soon Nam, Young Sun Kim | 2011-11-01 |
| 7610608 | Digital broadcast system in passive optical network | Yongtae Kim, Kang Bok Lee, Hyeong Ho Lee | 2009-10-27 |
| 7436852 | Resource allocation method for providing load balancing and fairness for dual ring | Hong Soon Nam, Hyeong Ho Lee | 2008-10-14 |
| 7403494 | Method for generating nodes in multiway search tree and search method using the same | Kang Bok Lee, Sang-Woo Lee, Hyeong Ho Lee | 2008-07-22 |
| 7382726 | Node system, dual ring communication system using node system, and communication method thereof | Sang-Woo Lee, Hyeong Ho Lee | 2008-06-03 |
| 7301912 | Method and apparatus for determining communication path over network by using spanning tree and circuit detection | Kang-Woon Hong, Hyeong Ho Lee | 2007-11-27 |