Process and system for optical recording and reading on a mobile
Program selection for a digital audio disk
Programmable write signal generator
Pseudo multi-channel play-back apparatus
Pseudo multi-channel play-back apparatus
Pseudo multi-channel stereo play-back
Pulse width control apparatus for optical disk
Quadraphonic compact disc system
Quasi-zoom lens optical focus sensor
Radio frequency signal processing circuit which prevents stepwis
Re-writable optical disk having reference clock information perm
Re-writable optical disk having reference clock information...
Read and write power control methods and system for optical...
Read and write power control methods and system for optical...
Read head adjusting motor assembly
Reading and writing an incomplete recording on an optical disk
Reading/reproducing apparatus having retry arrangement upon...
Record and reproduction apparatus for reading or writing...
Record apparatus, record and playback system
Record carrier containing an audio and/or video signal which has