Light spot position detector
Light spot position detector and optical head
Light spot positioning method and optical disc memory apparatus
Light-pick-up device and light source unit incorporated in...
Light-pickup device applied to a recording and/or...
Linear actuator for driving an optical head incorporated in an o
Linear drive mechanism for use in an optical disk device
Linear motor actuator for moving an optical read/write head
Linear motor driven mechanism using flexure bearings for...
Linear pickup actuator for moving an optical pickup in a radial
Liquid crystal tilt servo apparatus
Load correction method for an information retrieval apparatus
Logarithmic servo error detection for optical disk drive
Long seek control device for optical disk drive and method...
Loop-gain control system in a spindle servo loop
Low profile optical head
Low seek time optical media tracking system
Low seek time optical media tracking system
Machine readable markers for cartesian information storage media
Magnetic optical recording/reproducing apparatus