Electro-optical scanning device having bridge members through tr
Enhanced testing region access for optical disks
Equipment for transmitting data and method of the same
Erasable digital video disk with reference clock track
Erase mark detecting circuit for detecting an erase mark superim
Erroneous track jump restoration apparatus for optical record di
Error detecting system of video/audio disc player
Error signal generating device for use in an apparatus for optic
Error-correcting storage medium reproduction apparatus and metho
Flexure supported read head
Fluid bearing for axially movable head
Focal position detecting optical apparatus
Focus acquisition and maintenance for optical disk system
Focus control method and optical disc recording/reproducing...
Focus control system for optical read-out apparatus
Focus control through detection of the rate of error in discs wi
Focus detecting apparatus utilizing reflecting surface having va
Focus detection and control apparatus for maintaining accurate f
Focus error detection device for an optical recording/playing ba
Focus error detection device for an optical recording/playing ba