Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7023776 | Calibration initiation methods for a tracking and focus servo system | Charles R. Watt, Christopher J. Turner, Hans Brandon Wach | 2006-04-04 |
| 7023766 | Flexible servicing of servo algorithms using a digital signal processor | Christopher J. Turner | 2006-04-04 |
| 7020054 | Digital servo system with biased feed-forward | Charles R. Watt, Christopher J. Turner | 2006-03-28 |
| 7016280 | Tracking and focus servo system with defect detection | — | 2006-03-21 |
| 6977873 | System and method to adjust the level of re-calibration effort based on disc drive performance | Christopher J. Turner, Charles R. Watt, Hans Brandon Wach | 2005-12-20 |
| 6970403 | Calibration of tracking error signal offset in a tracking servo system | Charles R. Watt, Hans Brandon Wach | 2005-11-29 |
| 6970410 | Focus detection in a digital focus servo system | Charles R. Watt | 2005-11-29 |
| 6965547 | Tracking and focus servo system with error signal inverse non-linearity calibration | Christopher J. Turner, Hans Brandon Wach | 2005-11-15 |
| 6963524 | System and method for controlling interrupts in a control system for an optical disc drive | Christopher J. Turner, Charles R. Watt | 2005-11-08 |
| 6958963 | System and method for handling events in an optical disc drive | Christopher J. Turner, Charles R. Watt, Hans Brandon Wach | 2005-10-25 |
| 6958957 | Digital tracking and focus servo system with TES to FES crosstalk calibration | Charles R. Watt, Hans Brandon Wach | 2005-10-25 |
| 6956797 | Digital servo system with error signal integrity testing | — | 2005-10-18 |
| 6950380 | Detector input dark current offset calibration in an optical disk drive digital servo | Charles R. Watt, Christopher J. Turner | 2005-09-27 |
| 6937543 | Digital focus servo system with a sliding notch filter | Charles R. Watt | 2005-08-30 |
| 6930963 | Tracking and focus servo system with head load | Charles R. Watt, Christopher J. Turner, Hans Brandon Wach | 2005-08-16 |
| 6922380 | Tracking and focus servo system with anti-skate algorithm | Charles R. Watt | 2005-07-26 |
| 6909676 | Digital tracking servo system with multi-track seek with track zero crossing detection | — | 2005-06-21 |
| 6906985 | Calibration of tracking error signal gain in a tracking servo system | Charles R. Watt, Hans Brandon Wach, Christopher J. Turner | 2005-06-14 |
| 6904007 | Digital servo system with loop gain calibration | Hans Brandon Wach, Charles R. Watt | 2005-06-07 |
| 6898164 | Close tracking algorithm in a digital tracking servo system | Christopher J. Turner | 2005-05-24 |
| 6891789 | Tracking and focus servo system with automatic media type detector | Charles R. Watt, Christopher J. Turner | 2005-05-10 |
| 6891781 | Digital servo system with second order compensator | Charles R. Watt | 2005-05-10 |
| 6885620 | System and method for recovering from performance errors in an optical disc drive | Christopher J. Turner, Charles R. Watt | 2005-04-26 |
| 6882603 | Digital tracking servo system with tracking skate detection | — | 2005-04-19 |
| 6882601 | Digital servo system with feed-forward control loops | Charles R. Watt, Hans Brandon Wach | 2005-04-19 |