Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977876 | Apparatus for and method of detecting defocus error signal for optical pickup and apparatus for and method of detecting seek direction | Byung-in Ma, In-sik Park, Jin-hoon Jeon, Tae-yong Doh, Byoung-ho Choi | 2005-12-20 |
| 6961292 | Apparatus generating a seek direction detecting signal for an optical pickup using track cross and track error signals | Byung-in Ma, In-sik Park, Byoung-ho Choi, Tae-yong Doh | 2005-11-01 |
| 6899937 | Optical disc | Yong-hoon Lee, Chul-woo Lee, Kun-ho Cho | 2005-05-31 |
| 6885621 | Error signal detection apparatus and method for optical recording/reproducing system including comparing phases of sum signals | Byung-in Ma, Byoung-ho Choi, In-sik Park, Tae-yong Doh | 2005-04-26 |
| 6853614 | Aberration correction element and optical pickup adopting the same | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2005-02-08 |
| 6847499 | Optical head and method of adjusting optical path thereof | Jong-Chul Choi, Jin-Kyung Lee, Tae Kyung Kim, Kwang Soo Kim, Jin Won Lee | 2005-01-25 |