Data reproduction arrangement for recalling data readable with a
Data reproduction control method for optical disk drive and...
Data storage system and method for operating a servo system
Data-track search apparatus for locating a desired data track on
Defect detecting circuit and reproducing apparatus having the de
Defect detecting method
Defect detection apparatus for detecting defects on a recording
Defocus detection device, defocus detection method and...
Defocus detection device, defocus detection method and...
Defocus error signal detection apparatus having phase...
Demodulation circuit for demodulating wobbling signal
Demodulation circuit for demodulating wobbling signal
Demodulation of tracking error signal to obtain lens...
Deriving a tracking error signal from a time difference between
Detecting anomalies in a scanning signal
Detecting apparatus for detecting a tracking error signal in an
Detecting light spot movement direction for an optical disk
Detector for moving velocity of light beam spot
Detrack detecting system in an optical recording/reproducing app
Deviation correction apparatus for optical disc light beams