Apparatus and methods for securing information in storage media

Apparatus and process for measuring data disk runout and acceler

Apparatus and record carrier for optical disc memory with correc

Apparatus and record carrier for optically writing information

Apparatus comprising a pickup providing three beams for...

Apparatus for a record player distinguishing between recorded an

Apparatus for accessing recording disk by controlling the...

Apparatus for activating a disk clamper by magnetic...

Apparatus for activating a disk clamper by magnetic...

Apparatus for actuating objective lens

Apparatus for adapting the diameter of a disk-like recording med

Apparatus for adapting the diameter of a disk-like recording med

Apparatus for adapting the diameter of a disk-like recording med

Apparatus for adjusting a tilt of a disc loaded on a turn table

Apparatus for adjusting phase of clock signal based on phase...

APPARATUS FOR ADJUSTING SIGNAL LEVELS DERIVED FROM AN...

Apparatus for advancing a video disc pickup transducer beyond a

Apparatus for aligning optical axis of optical pick-up

Apparatus for and method for determining optimum power for recor

Apparatus for and method of adding information onto...