Reproduction apparatus for disk-like recording medium

Reproduction device for optical disks

Robust and versatile focus/tracking method and system for...

Rotary drum tape recording apparatus with controlling optical re

Rotary recording medium having a guide track and recording and r

Rotary recording medium having a guide track and recording and r

Rotary-type optical head

Runout calibration for disc drive system

Sampled servo for an optical disk drive

Scanning beam control system

Scanning device with two-stage controller for positioning a scan

Scanning lens mount using deflection and twisting for separate m

Scanning micropatterns on an optical medium

Scanning servo system for optical-disc information reproducing a

Search method for information record medium

Seek actuator for optical recording

Seek actuator for optical recording

Seek actuator for optical recording

Seek control circuit for suppressing vibration of objective lens

Seek control for information storage disc drive