Position sensor for tracking system for optical data storage

Position sensor for video disc

Positioning control device and positioning control method

Positioning control system having an optical beam and a servo-er

Positioning control system including a servo-error signal genera

Positioning control system utilizing optical beam

Positioning control system utilizing optical beam having servo-e

Positioning control system which generates a servo-error signal

Positioning device for optical disc apparatus

Positioning system and apparatus including the positioning...

Positioning system for flexure mounted read/write head

Positioning systems employing velocity and position control loop

Positioning systems including reliable track crossing detection

Pre-pit signal generator compensating a pre-pit signal...

Preformatted guide tracks and co-written control tracks for...

Prepit detecting apparatus

Process and device for controlling an incident optical beam...

Process and optical device for generating signals controlling th

Process for track jumping

Processing an information carrying signal