Optical disc apparatus and method of setting defocus value...

Optical disc apparatus and method of tracking control of optical

Optical disc apparatus and method thereof

Optical disc apparatus and offset adjustment method thereof

Optical disc apparatus and optical disc determining method

Optical disc apparatus and seek processing method

Optical disc apparatus and spherical aberration correction...

Optical disc apparatus and tracking control method

Optical disc apparatus and tracking error signal calculation cir

Optical disc apparatus employing an objective lens having a...

Optical disc apparatus for finding a tracking error for an...

Optical disc apparatus for installing two types of optical discs

Optical disc apparatus for recording and reproducing data onto a

Optical disc apparatus for recording and/or reproducing...

Optical disc apparatus having automatic gain control circuit of

Optical disc apparatus having compensation for objective...

Optical disc apparatus having improved read accuracy with non-li

Optical disc apparatus switching focus point between layers

Optical disc apparatus switching focus point between layers

Optical disc apparatus switching focus point between layers