.beta. compensation using a defocus technique
1033Multiplane information storage system and record carrier...
2,2,1 Asymmetric partial response target in a sampled...
2-laser optical head and recording/reproducing apparatus
45 RPM Automatic play adaptor
90°-bent metallic waveguide having tapered c-shaped...
A magneto-optical recording system including a recording medium
A scanning device producing a first and a second scanning spot w
A super-resolution optical head with signal corrective circuit
A tracking circuit for returning an optical beam to a track bein
Aberration adjustment device, method thereof, optical...
Aberration compensation device, and an optical pickup and an...
Aberration correcting apparatus
Aberration correcting apparatus and information recording medium
Aberration correcting apparatus and information recording...
Aberration correcting apparatus and information reproducing...
Aberration correcting device and optical pickup apparatus...
Aberration correcting device and optical recording medium...
Aberration correcting device and optical recording medium...
Aberration correcting device, optical head, and optical disc...