Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8341161 | Index database creating apparatus and index database retrieving apparatus | Jin Soo Seo, Seungjae Lee, Sang Kwang Lee, Wonyoung Yoo, Young-Suk Yoon +2 more | 2012-12-25 |
| 7343025 | Method for embedding and extracting digital watermark on lowest wavelet subband | Sanghyun Joo, Seon Hwa Lee | 2008-03-11 |
| 7302078 | Apparatus and method for preventing illegal distribution of digital contents by using a fingerprinting technique | Sanghyun Joo, Won Gyum Kim, Chang Soon Park | 2007-11-27 |
| 7092545 | Apparatus and method for embedding and extracting a digital watermark based on a wavelet | Sanghyun Joo, Weon Geun Oh | 2006-08-15 |
| 6934403 | Robust blind watermarking method in wavelet DC components | Sanghyun Joo, Young-Ho Suh, Weon Geun Oh | 2005-08-23 |
| 6712602 | Hybrid type high pressure combustion burner employing catalyst and CST combustion with staged mixing system | Sung Kyu Kang, Nam-Jo Joung, Sung-Jun Cho, In-Soo You, Hyun-Dong Shin | 2004-03-30 |
| 6347064 | Synchronous mask ROM device operable in consecutive read operation | — | 2002-02-12 |
| 6252817 | Read only memory with neighboring memory blocks sharing block selection lines | Byeng-Sun Choi | 2001-06-26 |
| 5856748 | Sensing amplifier with current mirror | Heung-Soo Im | 1999-01-05 |
| 5724704 | Detachable hinge device for portable notebook computer | — | 1998-03-10 |