Apparatus for detecting a deviation of a reading position for us
Apparatus for detecting a focus error and a tracking error of an
Apparatus for detecting a position of a light spot on an optical
Apparatus for detecting a pre-pit signal
Apparatus for detecting a read error of an optical recording med
Apparatus for detecting abnormal states of laser dioxide...
Apparatus for detecting abnormal states of laser power...
Apparatus for detecting an unrecorded optical disc
Apparatus for detecting and correcting focusing and tracking err
Apparatus for detecting and correcting wobble error and...
Apparatus for detecting and restoring physical identification
Apparatus for detecting delete patterns of optical discs
Apparatus for detecting deviations from a mutually perpendicular
Apparatus for detecting dropout, an error signal extracting...
Apparatus for detecting focus error signal
Apparatus for detecting groove end of record disk
Apparatus for detecting moving direction of light beam spot illu
Apparatus for detecting physical marks from wobble signal...
Apparatus for detecting position of a reproducing transducer in
Apparatus for detecting position of light spot