Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639748 | Disk drive that discerns the polarity of a head signal from a sync mark to enhance data detection | Mark David Hagen | 2003-10-28 |
| 6603622 | Disk drive employing a sync mark detector comprising a matched filter and a dual polarity correlator | Mark David Hagen | 2003-08-05 |
| 6369969 | Disk drive for detecting a polarity error of a magnetoresistive head by detecting a sync mark | Mark David Hagen | 2002-04-09 |
| 6049763 | Method and apparatus for performing digital thermal asperity detection | Donald Earl Vosberg | 2000-04-11 |