Optical disk apparatus utilizing exclusively allocated servo sig

Optical disk apparatus which changes a tilt value of an...

Optical disk apparatus with a groove/pit area discrimination cir

Optical disk apparatus with an improved track jump performance

Optical disk apparatus with approximate focus control of...

Optical disk apparatus with beam energy correction for deviation

Optical disk apparatus with focus bias means

Optical disk apparatus with galvanomirror having movable reflect

Optical disk apparatus, and construction of optical disk

Optical disk apparatus, focus control method and optical disk

Optical disk apparatus, focus-value correcting method, and...

Optical disk apparatus, optical head, and detection signal...

Optical disk apparatus, signal processing semiconductor...

Optical disk apparatus, tracking control circuit therefor, and m

Optical disk arrangement with diffractive tracks and a photoelec

Optical disk cutting apparatus

Optical disk data storage system with radiation-transparent air-

Optical disk device

Optical disk device

Optical disk device