Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9893659 | Configuration, frequency registers generating power from motor in supply-loss event | Seil Oh, Tuan Van Tran, David R. Street, Juergen Luebbe, Quang Dieu An | 2018-02-13 |
| 9762174 | Increasing PWM resolution for digitally controlled motor control applications | Jasraj R. Dalvi, Seil Oh | 2017-09-12 |
| 8922147 | Quiet motor control system | Brian L. Schmidt, Gregory Swize | 2014-12-30 |
| 8680799 | Method and apparatus for applying a commutation advance automatically in a brushless DC motor | Seil Oh, Brian L. Schmidt | 2014-03-25 |
| 8493010 | Quiet motor control system | Brian L. Schmidt, Gregory Swize | 2013-07-23 |
| 7888924 | Combination continuous and discontinuous control of a power regulator | Tuan Van Tran, Degang Xia | 2011-02-15 |
| 7243058 | Method and circuit for operating a voice coil actuator of a mass data storage device | Tan Du | 2007-07-10 |
| 7167334 | Digital actuator control and method | Liyong Chen | 2007-01-23 |
| 6998799 | System and method for improved motor control | Tanchu Shih, Bertram J. White | 2006-02-14 |
| 6721119 | System and method for controlling an actuator motor during retract | Mehedi Hassan, Joao Carlos Brito | 2004-04-13 |
| 6373208 | System for voltage regulation of a voice coil motor | Joao Carlos Brito, Frederick Trafton | 2002-04-16 |
| 6204629 | Method and apparatus for accurately measuring a back-emf voltage on an actuator coil | Lindian Wayne Reynolds, Jr. | 2001-03-20 |
| 6184645 | Voltage mode drive for control circuit for an actuator using sampled back EMF control | Joao Carlos Brito, Robert E. Whyte, Jr. | 2001-02-06 |
| 6040671 | Constant velocity control for an actuator using sampled back EMF control | Joao Carlos Brito, Frederick Trafton, Marcus M. Martins | 2000-03-21 |