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

Read channel circuit for optical disk reproducing apparatus

Read focus optimization for an optical disk drive

Read/write position controller for optical pickup

Reading device with cross-talk correction of two signal trains

Reading information stored in multiple frame format

Record carrier and apparatus for scanning the record carrier

Record carrier body with a follow-on track and apparatus for rec

Record carrier including a servo track having first and...

Record carrier scanning apparatus with feedback control system f