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
Processing of disc-drive pickup signals
Production of television signals from photographic disc recordin
Quadrature signal generator using an adaptive length dual arm co
Quick access information read and write devices
Radial tilt detection optical head apparatus and optical...
Random access control method and optical disc drive
Random access control method and optical disc driver
Rapid access optical scanner having a long optical element
Re-read of data read prior to read inhibit for data recovery...
Read and/or write device
Read beam position calibration