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

Record carrier with a follow-on track and apparatus for recordin

Record medium and reproducing apparatus of the same for...

Record-carrier body provided with a relief structure of opticall

Recording and playback system