Reproducing system for an optical disc

Reproducing waveform correction circuit for optical information

Reproducing-only and recordable-reproduceable optical discs and

Reproduction apparatus and method

Reproduction of digital audio data optically recorded in a motio

Reproduction of optically recorded signal

Reproduction of sound track signals by varying the detector thre

Resilient scanning head support made of deformable material

Retardation compensating light beam guiding system in an optical

Retarder and optical head device installing the same

Reversible optical storage medium and a method for recording inf

Ridge waveguide with recess

ROM type optical recording medium with a high reflectivity and a

Rotary actuator with a magnetic bias bearing configuration for r

Rotary head actuator for optical disk

Rotary optical system for guiding and converging divided light b

Rotational optical head for optical recording medium

Ruggedized homogeneous thin dielectric film focus sensor

Sample-and-hold interface circuit of a pickup head

Scanning apparatus for fluorescent multi-layer storage