Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937428 | Reducing actuator arm oscillation during settle mode in a disc drive servo system | Justin Won, Fadi Abou-Jaoude, Gregory Campbell | 2005-08-30 |
| 6892213 | Digital sine/cosine wave generator | Tony Huang | 2005-05-10 |
| 6867943 | Efficient feedforward compensation for repeatable runout in a disc drive | Brent Jay Harmer, Jianbo He, Khalil Dizaji, Reed D. Hanson | 2005-03-15 |
| 6819521 | Repeated runout position error compensation in a disc drive servo system | Justin Won, Mirmehdi L. Abrishamchian, Gregory Campbell | 2004-11-16 |
| 6674601 | Method and apparatus for electronically shifting mechanical resonance of an actuator system of a disc drive | — | 2004-01-06 |
| 6654197 | Disc drive dynamics identification using synchronous excitation signal | — | 2003-11-25 |
| 6636376 | Disc drive resonance disturbance cancellation filter | — | 2003-10-21 |
| 6628472 | Method and apparatus for feedforward cancellation using a phase lock loop | — | 2003-09-30 |
| 6618219 | Method and apparatus for feedforward cancellation using a peak detector | — | 2003-09-09 |
| 6541931 | Dual stage positioning system using a shared voltage source | Margot Ann LaPanse, Charles Leon McHenry, Jianbo He | 2003-04-01 |
| 6292324 | Disk drive with compensation values calculated using a non-causal impulse response | Toan Q. Doan, Bruce A. Liikanen | 2001-09-18 |
| 6115203 | Efficient drive-level estimation of written-in servo position error | Toan Q. Doan, Bruce A. Liikanen | 2000-09-05 |
| 6018430 | Disk drive with multiple disk surfaces having improved allocation of servo sectors | Toan Q. Doan | 2000-01-25 |
| 5936790 | Servo sector allocation for high sampling rate | Toan Q. Doan | 1999-08-10 |
| 5682276 | Data cartridge library system architecture | Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more | 1997-10-28 |
| 5621586 | Retaining slot for data cartridge library system | Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more | 1997-04-15 |
| 5555143 | Data cartridge library system architecture | Bennett Charles Hinnen, Eric A. Rinard, Gregory S. Rinard, Brian A. Ruff, Nathan Christopher Thompson +1 more | 1996-09-10 |