Optically storing digital data in the form of spectrally...
Optimal polarization for the optical readout of high density vid
Optimized laser read power based upon scan speed of optical medi
Optimum recording laser power control by testing an EFT signal's
Optimum reproduction laser power based on amplitude level of...
Opto-magnetic pick-up device including phase difference correcti
Optomagnetic recording/reproducing apparatus
Output control apparatus of semiconductor laser device
Output stabilizing apparatus for an optical head
Over current protection device
Overlay recording prevention device for optical disc apparatus