Inventor
HANSEN DELBERT A
US3 patents
Patents
3 patentsUS5367513ANov 22, 1994
Focus and tracking servo decoupling system
IBM41 citations88
US5627818AMay 6, 1997
Optical disk with marks used for calibrating an optical detector to minimize noise from undesired perturbations in disk surfaces
IBM7 citations70
US5553054ASep 3, 1996
Coarse position sensor, and method for locating same, in an optical disk drive
IBM1 citations50