Lens support system enabling focussing and tracking motions empl

Light source driving unit and optical storage apparatus

Light source intensity control in an optical recording and repro

Limited duration focusing in a vehicular disk player

Linear tracking arrangement in a photographic disc type informat

Loudness control circuit for an audio device

Low cost detection of wobble inversions using a tuned circuit

Magnetic and optical rotating storage systems with audio...

Magneto-optical apparatus

Marking of a data medium material for information intended...

Matrix circuit for optical disc systems

Media recognition control method for optical types

Memory controller, reproducing apparatus mounting the same...

Memory device including a rotating disk and means for detecting

Memory device including a rotating disk and means for detecting

Memory disk and apparatus for recording information on memory di

Memory manage method for defect management of an optical disk

Memory manage method for defect management of an optical disk

Method and an apparatus for recording information, and an...

Method and an apparatus for reproducing information based on...