Reducing amplitude variations of optical disk readback signals a
Regenerating device for optical recording medium in which overla
Relative position sensing calibration for optical storage device
Reproducing apparatus
Reproducing apparatus which can play multiple types of discs and
Reproducing or recording device for reproducing, or recording on
Reproduction apparatus and method
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