Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657942 | Optical recording and reproducing apparatus having floating swing arm and optical disk for use therewith | Chul-woo Lee, Joong-eon Seo, Seung-tae Jung, Myong-do Ro, Kun-ho Cho +2 more | 2003-12-02 |
| 6639889 | Recording/reproducing apparatus including an optical pickup having an objective lens compatible with a plurality of optical disk formats | Chong-sam Chung, Chul-woo Lee, Kun-ho Cho | 2003-10-28 |
| 6636464 | Optical pickup device capable of detecting stable error signal | Yong Jae Lee, Pyong-yong Seong, Byung-ryul Ryoo, Yong-Ki Son | 2003-10-21 |
| 6556520 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Chong-sam Chung, Jung-wan Ko +2 more | 2003-04-29 |
| 6556521 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Chong-sam Chung, Jung-wan Ko +2 more | 2003-04-29 |
| 6547398 | Projection-type image display apparatus and method | Kun-ho Cho, Seung-tae Jung, Chul-woo Lee | 2003-04-15 |