Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7333551 | Apparatus and method for transmitting and receiving data in a mobile communication system using space-time trellis code | Yung-Soo Kim, Seung-Hoon Nam, Jae-Hak Chung | 2008-02-19 |
| 7298804 | Receiving apparatus in a radio communication system using at least three transmitter antennas | Seung-Hoon Nam, Yung-Soo Kim, Jae-Hak Chung | 2007-11-20 |
| 7298797 | Transmitter and receiver provided in wireless communication system using four transmitting antennas | Seung-Hoon Nam, Yung-Soo Kim, Jae-Hak Chung | 2007-11-20 |
| 7292641 | Apparatus and method for transmitting/receiving preamble sequence in orthogonal frequency division multiplexing communication system using plurality of transmission antennas | Chang-Ho Suh, Katz Daniel, Chan-Byoung Chae, Ho-Kyu Choi | 2007-11-06 |
| 7292644 | Apparatus and method for generating space-time trellis code for maximizing space-time diversity gain and coding gain in a mobile communication system | Keum-Chan Whang | 2007-11-06 |
| 7274751 | Apparatus and method for transmitting and receiving signals using multiple antennas in mobile communication systems | Vahid Tarokh, Jae-Hak Chung, Yung-Soo Kim | 2007-09-25 |
| 7221716 | Signal receiving apparatus and method adapted for use with a time-variant channel | — | 2007-05-22 |
| 7215471 | Diffractive optical element, illumination system comprising the same, and method of manufacturing semiconductor device using illumination system | — | 2007-05-08 |
| 7139064 | Optical system for providing a hexapole illumination and method of forming a photoresist pattern on a substrate using the same | Dong-Seok Nam, Young-Seog Kang | 2006-11-21 |
| 7113808 | Apparatus and method for transmitting and receiving signals using multi-antennas | Jae-Hak Chung | 2006-09-26 |