Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11378607 | Displacement sensor-combined electrostatic measurement potential sensor and operation method therefor | Joo Hun Yun, Jung Hyun Kim | 2022-07-05 |
| 8368765 | Auto stabilization method and photographing apparatus using the same | Dong-hae Yeom, Joong-eon Seo, Nam-joon Park | 2013-02-05 |
| 7480220 | Method of tilt compensation in an optical recording device | Jee-hyung Park, Dong-ki Hong, Ju-wha Jin | 2009-01-20 |
| 7385895 | Method of discriminating optical disc type and apparatus thereof | Yong-seock Yoon, Byoung-ho Choi, Joong-eon Seo, Dong Jin Lee | 2008-06-10 |
| 7369474 | Method of and apparatus for differentiating between writable disc types | Byoung-ho Choi, Yong-seock Yoon, Dong Jin Lee, Joong-eon Seo | 2008-05-06 |
| 7324418 | Method and apparatus of determining a type of disc | Byoung-ho Choi, Yong-seock Yoon, Joong-eon Seo | 2008-01-29 |
| 7317671 | Apparatus and method for compensating for tilt | Jee-hyung Park, Dong-ki Hong, Ju-wha Jin | 2008-01-08 |
| 7283437 | Device and method for compensating for tilt in an optical disk apparatus | Jee-hyung Park, Dong-ki Hong, Ju-wha Jin | 2007-10-16 |
| 7272090 | Device and method for compensating for tilt | Ju-wha Jin | 2007-09-18 |
| 7224647 | Method, apparatus, and medium for controlling a servo using a detected header field signal, and method, apparatus, and medium for detecting the header field signal | Yong Seok Yoon | 2007-05-29 |
| 7193935 | Method and apparatus for controlling positioning of a pickup | Dong-ki Hong, Jee-hyung Park | 2007-03-20 |
| 7149157 | Method and apparatus to control a step motor of an optical disk driving system | Yong-seock Yoon, Dong-ki Hong | 2006-12-12 |
| 7079461 | Eccentricity compensation apparatus based on frequency response characteristics of an actuator of a disk drive servo system | Seong-il Cho, Joong-eon Seo | 2006-07-18 |
| 7065020 | Apparatus and method for compensating for tilt | Jee-hyung Park, Dong-ki Hong, Ju-wha Jin | 2006-06-20 |
| 7042827 | Disk drive servo system for eccentricity compensation and method thereof | Seong-il Cho, Joong-eon Seo | 2006-05-09 |
| 6977982 | Differential phase detection device and tracking error signal detection apparatus using the same | Byung-in Ma, In-sik Park, Joong-eon Seo, Sung-ro Go, Chang-jin Yang | 2005-12-20 |
| 6813227 | Apparatus and method to compensate for disturbance using learning control in an optical recording/reproducing apparatus and optical recording medium drive servo system | Seong-il Cho, Joong-eon Seo, Jin-hoon Jeon | 2004-11-02 |
| 6400658 | DVD-RAM disk reproduction apparatus for reducing errors during detection of identification data | Chang-jin Yang, Pyong-yong Seong, Seong-sin Joo, Jung-Eon Seo, Yong Jae Lee +2 more | 2002-06-04 |
| 5399849 | Focusing control apparatus for an optical disk system employing a gain adjusted and phase compensated error signal | — | 1995-03-21 |