Photochromic optical disk read/write apparatus which prevents de
Photodetecting system for a magneto-optical disk head system
Photodetector unit, and optical pickup, optical reproduction...
Photodisc apparatus with gain control of tracking servo loop
Photodisc apparatus with means for canceling offset of tracking
Pick-up angle adjustment mechanism for optical disk apparatus
Pick-up device for optical disk readout using waveguide gratings
Pick-up device positioning arrangement in an information disc pl
Pick-up point dislocation detecting device in recording a disc p
Pickup actuator
Pickup actuator for disk-type media
Pickup control device for optical disk drive which adjusts...
Pickup control method and apparatus, and disk unit with gain con
Pickup device
Pickup device
Pickup device and recording medium drive unit
Pickup drive apparatus, pickup drive method, and...
Pickup drive controller for optical disc drive
Pickup for an optical system including a blazed hologram for div
Pickup head actuator