Disc phonograph record playback by laser generated diffraction p
Dual beam optical turntable
Equipment for the optical playback of analog phonographic...
Frictionless, non-destructive playback system for cylinder...
Magneto-optic recording and playback system
Optical disc playback and display apparatus
Optical disc player having a resume function
Optical signal reproducing apparatus
Optical turntable system with reflected spot position detection
Process and apparatus for the recording of an information signal