Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6377413 | Method and apparatus for encoding identification information on a magnetic disc | Li-Ping Wang, Donald E. Curtiss | 2002-04-23 |
| 6327108 | Filter calibration method in a disc drive and apparatus | Timothy F. Ellis | 2001-12-04 |
| 6249392 | Head instability detection method and apparatus | Timothy F. Ellis | 2001-06-19 |
| 6243224 | Asynchronous digital demodulator and method for a null-type servo pattern | Timothy F. Ellis | 2001-06-05 |
| 6195220 | Method and apparatus utilizing field ratioing demodulation techniques for a null-type servo pattern | Timothy F. Ellis | 2001-02-27 |
| 6188539 | Extended position error signal linearization and normalization | Mark Elliot, Duc T. Phan | 2001-02-13 |
| 6181505 | Synchronous digital demodulator with integrated read and servo channels | Timothy F. Ellis | 2001-01-30 |
| 5459624 | Activator control method and apparatus for positioning a transducer using a phase plane trajectory trough function for a direct access storage device with estimated velocity and position states | Kevin J. Erickson | 1995-10-17 |