Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9052521 | Optical component calibration system for laser-based display device | Roger A. Hajjar, Chris Butler | 2015-06-09 |
| 7574079 | Exogenous tone dither rejection in optical switching | — | 2009-08-11 |
| 7567756 | Method of automatic adjustment of dither amplitude of MEMS mirror arrays | — | 2009-07-28 |
| 7362930 | Reduction of MEMS mirror edge diffraction in a wavelength selective switch using servo-based rotation about multiple non-orthogonal axes | Joseph E. Davis | 2008-04-22 |
| 7346234 | Reduction of MEMS mirror edge diffraction in a wavelength selective switch using servo-based multi-axes rotation | Joseph E. Davis | 2008-03-18 |
| 7263253 | Optimized reconfigurable optical add-drop multiplexer architecture with MEMS-based attenuation or power management | Joseph E. Davis, Mark H. Garrett, Michael James Darling | 2007-08-28 |
| 6975787 | Non-linear method for micro-mirror control | — | 2005-12-13 |
| 6961506 | Variable attenuation of free-space light beams | Armand P. Neukermans, Rajiv Ramaswami, John Heanue, Marc R. Schuman | 2005-11-01 |
| 6909819 | System and method for canceling disturbance MEMS devices | Joseph E. Davis | 2005-06-21 |
| 6724694 | Disk mastering based on near-field optical systems | Gordon R. Knight, John Al-Samarrie, David L. Blankenbeckler, Brian Bonn, Alan C. Burroughs +4 more | 2004-04-20 |
| 6449221 | Storage media for optical storage systems | Gordon R. Knight, John Al-Samarrie, David L. Blankenbeckler, Brian Bonn, Alan C. Burroughs +4 more | 2002-09-10 |
| 6420692 | Zig-zag-patterned position sensor system | Alan C. Burroughs | 2002-07-16 |
| 6396783 | Mechanism for controlling spacing between optical head and storage medium in optical storage systems | Bernard W. Bell, Jr., Vlad Novotny, Hossein Moghadam, Roger A. Hajjar, Yung-Chieh Hsieh | 2002-05-28 |
| 6243350 | Optical storage systems with flying optical heads for near-field recording and reading | Gordon R. Knight, John Al-Samarrie, David L. Blankenbeckler, Brian Bonn, Alan C. Burroughs +4 more | 2001-06-05 |
| 6067204 | Disc drive servo pattern insensitive to read head | — | 2000-05-23 |
| 5668680 | Time optimal control of a disc drive actuator with vibro-acoustic constraints | — | 1997-09-16 |
| 5182685 | Stepper motor torque variance compensation using varied applied voltage | James N. Krause, Litko Chan | 1993-01-26 |
| 5079653 | Information storage disc transducer position control system using last step damping | Raymond G. Gauthier, James N. Krause, Litko Chan | 1992-01-07 |
| 4739239 | Bipolar motor control | James N. Krause | 1988-04-19 |