Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7577066 | Method and apparatus for providing high speed recording on an optical medium | Akio Tanaka | 2009-08-18 |
| 7054240 | Method and apparatus for providing focus control on a multi layer disc | Hwee Chin Ong | 2006-05-30 |
| 6862088 | Method and apparatus for providing adaptive control of track servo | Hwee Chin Ong | 2005-03-01 |
| 6633520 | Method and apparatus for searching in a disk drive | — | 2003-10-14 |
| 6549492 | Method and apparatus for run-out correction in a disk drive | — | 2003-04-15 |
| 6519213 | Method and apparatus for reading data from a disk | Hwee Chin Ong | 2003-02-11 |
| 5991112 | Non-contact servotrack writing with phase sensitive detection | John Tsai, Mervyn L. Hopson, Kam Fung Yan, Jean Chi | 1999-11-23 |
| 4833551 | Dual head servo system and method for a magnetic disk | — | 1989-05-23 |
| 4825310 | Method and apparatus for recording servo synchronization information | — | 1989-04-25 |
| 4446411 | Optimum acceleration/deceleration circuit | — | 1984-05-01 |
| 4414497 | Digitally controllable electronic damper | — | 1983-11-08 |
| 4193020 | Phase lock control system with trajectory correction | — | 1980-03-11 |