Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9560978 | Systems and methods for determining respiration information from a physiological signal using amplitude demodulation | Braddon M. Van Slyke, Scott McGonigle | 2017-02-07 |
| 9554712 | Systems and methods for generating an artificial photoplethysmograph signal | Braddon M. Van Slyke, Scott McGonigle, Michael Mestek, Paul Stanley Addison, James N. Watson | 2017-01-31 |
| 6347018 | Digital servo control system for use in disk drives | Thomas J. Frederick, Paul H. Kelley, Philip Saxton Weilbacher | 2002-02-12 |
| 5914830 | Digital servo control system including sample integrity tester for reducing effects of spurious sampled position values | Paul H. Kelley, Philip Saxton Weilbacher | 1999-06-22 |
| 5914829 | Digital servo control system for use in disk drives, including calibrated controller for fixed-distance seeks | Paul H. Kelley, Thomas J. Frederick | 1999-06-22 |
| 5684650 | Digital servo control system for use in disk drives | Thomas J. Frederick, Paul H. Kelley, Philip Saxton Weilbacher | 1997-11-04 |
| 5680272 | Digital servo control system for use in disk drives | Thomas J. Frederick | 1997-10-21 |
| 5677809 | Digital servo control system for use in disk drives, having state space observer including integral compensator | — | 1997-10-14 |
| 5675450 | Digital servo control system for use in disk drives using driver saturation model | — | 1997-10-07 |
| 5646797 | Digital servo control system for use in disk drives | Thomas J. Frederick, Paul H. Kelley, Philip Saxton Weilbacher | 1997-07-08 |
| 5638230 | Digital servo control system for use in disk drives | — | 1997-06-10 |
| 5602689 | Digital servo control system for use in disk drives, including sample integrity tester for reducing effects of spurious sampled position values | Paul H. Kelley, Philip Saxton Weilbacher | 1997-02-11 |
| 5090002 | Positioning systems employing velocity and position control loops with position control loop having an extended range | William W. Chow, Alan A. Fennema, Ian E. Henderson | 1992-02-18 |
| 5046060 | Servo error controls | William W. Chow, Alan A. Fennema | 1991-09-03 |
| 5038333 | Positioning systems including reliable track crossing detection for high speed relative motions | William W. Chow, Alan A. Fennema, Benjamin C. Fiorino, Ian E. Henderson, Spencer D. Roberts | 1991-08-06 |
| 4914725 | Transducer positioning servo mechanisms employing digital and analog circuits | Karl A. Belser, Paul J. Dounn, Ian E. Henderson, Spencer D. Roberts | 1990-04-03 |