Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8059525 | Apparatus and method for performing ranging in a communication system | Jin-Kyu Koo, Young-Kwon Cho, Chang-Yoon Oh, Su-Ryong Jeong, Tae-Young Kim +5 more | 2011-11-15 |
| 8050235 | Apparatus and method of providing transparent relay service to mobile station in a multihop relay broadband wireless access (BWA) communication system | Hyun-Jeong Kang, Jae-Weon Cho, Sung-Jin Lee, Mi-Hyun Lee, Pan-Yuh Joo | 2011-11-01 |
| 7991002 | Apparatus and method for implementing handoff between heterogeneous networks in a wireless communication system | Sung-Jin Lee, Jung-Je Son, Pan-Yuh Joo, Chong Kwon Kim, Joon Mo YOO | 2011-08-02 |
| 7773563 | Apparatus and method for deciding on vertical handoff | Sung-Jin Lee, Jung-Je Son, Pan-Yuh Joo, Chong Kwon Kim, Jae Hyuk Choi | 2010-08-10 |
| 7768987 | Apparatus and method for operating frequency resources in a mobile communication system | Muhammad Imadur Rahman, Ragnar Viôir Reynisson, Frank Fitzek, Ramjee Prasad, Jin-Kyu Koo +4 more | 2010-08-03 |