Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10547278 | Active cross-band isolation for a transformer-based power amplifier | Setu Mohta | 2020-01-28 |
| 10181828 | Active cross-band isolation for a transformer-based power amplifier | Setu Mohta | 2019-01-15 |
| 9106198 | High power tunable capacitor | Minsik Ahn, Chang-Ho Lee, Aristotele Hadjichristos | 2015-08-11 |
| 8125276 | Sharing of inductor interstage matching in parallel amplification system for wireless communication systems | Yunseo Park, Wangmyong Woo, Chang-Ho Lee | 2012-02-28 |
| 8115555 | Balun function with reference enhancement in single-ended port | Yunseo Park, Chang-Ho Lee | 2012-02-14 |
| 8106712 | Systems and methods for self-mixing adaptive bias circuit for power amplifier | Dong-Ho Lee, Chang-Ho Lee, Joy Laskar | 2012-01-31 |
| 8044540 | Systems and methods for a SPDT switch or SPMT switch with transformer | Dong-Ho Lee, Minsik Ahn, Wangmyong Woo, Chang-Ho Lee, Joy Laskar | 2011-10-25 |
| 7969246 | Systems and methods for positive and negative feedback of cascode transistors for a power amplifier | Yunseo Park, Chang-Ho Lee | 2011-06-28 |
| 7961048 | Integrated power amplifiers for use in wireless communication devices | Michael Alan Oakley, Dong-Ho Lee, Chang-Ho Lee, Joy Laskar | 2011-06-14 |
| 7952433 | Power amplifiers with discrete power control | Dong-Ho Lee, Chang-Ho Lee, Joy Laskar | 2011-05-31 |
| 7944296 | Low power mode amplification with a transformer output matching and a virtual ground | Chang-Ho Lee, Yunseo Park | 2011-05-17 |
| 7944293 | Systems and methods for an adaptive bias circuit for a differential power amplifier | Dong-Ho Lee, Jeonghu Han, Chang-Ho Lee, Joy Laskar | 2011-05-17 |
| 7936215 | Multi-segment primary and multi-turn secondary transformer for power amplifier systems | Chang-Ho Lee, Ockgoo Lee, Jeonghu Han, Hyungwook Kim, Dong-Ho Lee +3 more | 2011-05-03 |
| 7880547 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Younsuk Kim +5 more | 2011-02-01 |
| 7768353 | Systems and methods for switching mode power amplifier control | Jaejoon Chang, Ki Seok Yang, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim +3 more | 2010-08-03 |
| 7746174 | Systems and methods for power amplifier with integrated passive device | Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim +3 more | 2010-06-29 |
| 7675365 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Younsuk Kim +5 more | 2010-03-09 |
| 7576607 | Multi-segment primary and multi-turn secondary transformer for power amplifier systems | Chang-Ho Lee, Ockgoo Lee, Jeonghu Han, Hyungwook Kim, Dong-Ho Lee +3 more | 2009-08-18 |
| 7560994 | Systems and methods for cascode switching power amplifiers | Ockgoo Lee, Jeonghu Han, Hyungwook Kim, Dong-Ho Lee, Ki Seok Yang +3 more | 2009-07-14 |
| 7463103 | Chaotic signal generator for ultra wide band communication system | Kwang Du Lee, Chang Soo Yang, Kyuong Ree Kim | 2008-12-09 |