Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7440214 | Disk drive and method having cost-effective storage of the disk drive's internal program code | Hanan Kupferman, Hoa V. Le, Jonathan Nguyen, Saied Tamaddon-Dallal, Virat Thantrakul +1 more | 2008-10-21 |
| 6958881 | Disk drive control system having a servo processing accelerator circuit | Raffi Codilian | 2005-10-25 |
| 6674605 | PQ enhanced dual stage servo controller | — | 2004-01-06 |
| 6671121 | Minimizing milli-actuator reactive impulse and excessive power current | Robert T. Bradbury | 2003-12-30 |
| 6604121 | Digital division device and method using a reduced-sized lookup table | John C. Morris | 2003-08-05 |
| 6590734 | Observer based dual stage servo controller with gain boost to accomodate rotational vibration | — | 2003-07-08 |
| 6563665 | PQ enhanced observer based dual stage servo controller | — | 2003-05-13 |
| 6542326 | Microactuator-induced reactive forces for fine positioning a sensor | John C. Morris, Roger A. Resh | 2003-04-01 |
| 6493177 | Microactuator assisted seek and hysteresis correction method and apparatus for a disk drive | Arnold G. Slezak | 2002-12-10 |
| 6490118 | Adaptive h-infinity hardware controller for disc drive actuator control | Virat Thantrakul | 2002-12-03 |
| 6490121 | Accelerated servo control calculations method and apparatus for a disc drive | David Christopher Pruett | 2002-12-03 |
| 6469863 | Active magnetic bearing system for improved servo control | — | 2002-10-22 |
| 4691152 | Data disk drive velocity estimator | Jeff Stephenson | 1987-09-01 |