Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590034 | 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, Chong-sam Chung, Jang-hoon Yoo, Jung-wan Ko +2 more | 2009-09-15 |
| 7372794 | Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens | Tae Kyung Kim, Chong-sam Chung, Young-man Ahn, Jong-bae Kim, Seok-jung Kim | 2008-05-13 |
| 7349311 | Method and apparatus for detecting radial tilt | Kwan-joon Kim, In-sik Park, Byoung-ho Choi | 2008-03-25 |
| 7319643 | 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, Chong-sam Chung, Jang-hoon Yoo, Jung-wan Ko +2 more | 2008-01-15 |
| 7310291 | Method and apparatus for tracking error detection in optical disk driver | In-sik Park, Joong-eon Seo, Jae-seong Shim | 2007-12-18 |
| 7304915 | Actuator for optical disk system and apparatus for providing signal for driving the actuator | Kwan-joon Kim, Seok-jung Kim, Shi-yang Ryu | 2007-12-04 |
| 7286447 | Recording and/or reproducing apparatus and method of controlling the same | Kwan-joon Kim, In-sik Park | 2007-10-23 |
| 7280458 | Optical pickup apparatus and optimal light spot focusing method | Yong Jae Lee, Sung-ro Go, Pyong-yong Seong, Chang-jin Yang, Gi-bong Song +1 more | 2007-10-09 |
| 7224651 | Physical identification data addressing method using wobble signal, wobble address encoding circuit, method and circuit for detecting wobble address, and recording medium thereof | Jung-wan Ko, In-sik Park, Kyung-geun Lee, Du-seop Yoon, Seong-sin Joo +4 more | 2007-05-29 |
| 7184373 | Adaptive focusing method and apparatus | Dmytro Kelbas | 2007-02-27 |
| 7170836 | Error signal detection apparatus and method for optical recording/reproducing system | Byoung-ho Choi, Chong-sam Chung, In-sik Park, Tae-yong Doh | 2007-01-30 |
| 7170834 | Method and circuit for detecting playback signal which is compensated for time delay | Tatsuhiro Otsuka, Seong-sin Joo, Chong-sam Chung, Young-man Ahn, In-sik Park +2 more | 2007-01-30 |
| 7167424 | 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, Chong-sam Chung, Jang-hoon Yoo, Jung-wan Ko +2 more | 2007-01-23 |
| 7133342 | Method and apparatus for determining a type of disk | Byoung-ho Choi | 2006-11-07 |
| 7120095 | Apparatus for generating seek direction detecting signal using track error and track cross signals for an optical pickup | Chong-sam Chung, In-sik Park, Byoung-ho Choi, Tae-yong Doh | 2006-10-10 |
| 7110334 | 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, Chong-sam Chung, Jang-hoon Yoo, Jung-wan Ko +2 more | 2006-09-19 |
| 7102967 | Method and apparatus for tracking error detection in optical disk driver | In-sik Park, Joong-eon Seo, Jae-seong Shim | 2006-09-05 |
| 7095686 | Defocus error signal detection apparatus having phase comparators and a matrix circuit for an optical recording/reproduction system | In-sik Park, Chong-sam Chung, Jin-hoon Jeon, Tae-yong Doh, Byoung-ho Choi | 2006-08-22 |
| 7092329 | Physical identification data addressing method using wobble signal, wobble address encoding circuit, method and circuit for detecting wobble address, and recording medium therefor | Jung-wan Ko, In-sik Park, Kyung-geun Lee, Du-seop Yoon, Seong-sin Joo +4 more | 2006-08-15 |
| 7035178 | Apparatus and method for generating tracking error signal | Young-man Ahn, In-sik Park, Kwan-joon Kim, Byoung-ho Choi | 2006-04-25 |
| 7009921 | Method and circuit for detecting playback signal which is compensated for time delay | Tatsuhiro Otsuka, Seong-sin Joo, Chong-sam Chung, Young-man Ahn, In-sik Park +2 more | 2006-03-07 |
| 6977982 | Differential phase detection device and tracking error signal detection apparatus using the same | In-sik Park, Joong-eon Seo, Sung-ro Go, Soo-yul Jung, Chang-jin Yang | 2005-12-20 |
| 6977876 | Apparatus for and method of detecting defocus error signal for optical pickup and apparatus for and method of detecting seek direction | In-sik Park, Chong-sam Chung, 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 | Chong-sam Chung, In-sik Park, Byoung-ho Choi, Tae-yong Doh | 2005-11-01 |
| 6940799 | Method for generating a signal for detecting the direction of movement of a laser spot, and apparatus therefor | Byoung-ho Choi, Tae Youn LEE | 2005-09-06 |