Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5561645 | Method and apparatus for focusing a recording light beam on a recording medium | Clarke K. Eastman, Daniel L. Nelson | 1996-10-01 |
| 5446716 | Laser power control in an optical recording system to compensate for multiple system degradations | Clarke K. Eastman, James A. Perconti, Peter J. Spyra | 1995-08-29 |
| 5440534 | Method and apparatus for maintaining a recording light beam in an on-track position on a recording medium | Clarke K. Eastman, Daniel L. Nelson | 1995-08-08 |
| 5436880 | Laser power control in an optical recording system using partial correction of reflected signal error | Clarke K. Eastman, Peter J. Spyra | 1995-07-25 |
| 5121373 | Track jumping method for an optical disk reading head | Mark Barton, Daniel L. Nelson | 1992-06-09 |
| 5121374 | Method for automatically compensating for the eccentricity in an optical head positioning servo-mechanism | Mark Barton, Daniel L. Nelson | 1992-06-09 |
| 5020045 | Focus acquisition servo system and associated method | Daniel L. Nelson | 1991-05-28 |
| 4764914 | Least squares method and apparatus for determining track eccentricity of a disk | Marvin F. Estes | 1988-08-16 |