Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7633704 | Regulating tuning rate of adaptive filter coefficients for feed-forward disturbance rejection in a servo control loop | Frank William Bernett | 2009-12-15 |
| 7515373 | Transducer positioning responsive to complex position error signal | — | 2009-04-07 |
| 6798611 | Disk storage system employing a discrete-time sliding mode controller for servo control | Paul M. Romano, Christopher Settje | 2004-09-28 |
| 6741532 | Servo circuitry for counting tracks on an optical storage medium | James Graba, German Feyh, Hao Huang | 2004-05-25 |
| 6580669 | Servo detection using a correlation data structure for concurrent processing of quad signals | James Graba, German Feyh | 2003-06-17 |
| 6236895 | Reference estimator in a discrete-time sliding mode controller | Paul M. Romano, Christopher Settje | 2001-05-22 |
| 6185467 | Adaptive discrete-time sliding mode controller | Paul M. Romano, Christopher Settje | 2001-02-06 |
| 6141303 | Quadrature signal generator using an adaptive length dual arm correlator for optical storage devices | Paul M. Romano | 2000-10-31 |
| 5982721 | Optical disc drive comprising switching gains for forcing phase states to follow a sliding line trajectory in a servo system | Paul M. Romano, Francis H. Reiff | 1999-11-09 |
| 5956304 | Differential phase error detector using dual arm correlation for servo tracking in an optical disk storage device | Paul M. Romano, Larry D. King, German Feyh | 1999-09-21 |
| 5917784 | Trellis sequence detector for detecting a quadrature servo signal in disk recording systems | Paul M. Romano, Jim Graba | 1999-06-29 |
| 5914922 | Generating a quadrature seek signal from a discrete-time tracking error signal and a discrete-time RF data signal in an optical storage device | Jim Graba, Shuangxia Zhu, Paul M. Romano | 1999-06-22 |
| 5847895 | Chatter reduction in sliding mode control of a disk drive actuator | Paul M. Romano | 1998-12-08 |
| 5841604 | Masterless spindle synchronization in a multiple disk drive storage system | — | 1998-11-24 |
| 5825582 | Sliding mode control of a disk drive actuator for positioning a read/write head over a selected track during seeking and tracking operations | Paul M. Romano | 1998-10-20 |
| 5781365 | Sliding mode control of a magnetoresistive read head for magnetic recording | Paul M. Romano | 1998-07-14 |
| 5699207 | Chatter reduction in sliding mode control of a disk drive actuator | Paul M. Romano | 1997-12-16 |
| 5402280 | Method and apparatus for runout correction due to disk slip or spindle imbalance | — | 1995-03-28 |
| 5306994 | Automatic phase margin compensation control circuit and method for disk drives | — | 1994-04-26 |
| 5053892 | Thin film head read recovery | Joseph M. Rinaldis | 1991-10-01 |