Sound reproducing device for playing a record disc having a plur

Sound reproducing device for playing a record disc having a plur

Sound reproducing device incorporating a device for selecting a

Sound reproduction apparatus

Sound reproduction selection apparatus for a simplified sound re

Sound reproduction unit with magnetic governor

Sound system with source material and surround timbre response c

Sound-activated playback device

Spacer for stacked recorded discs

Spacer for use in testing information recorded discs

Spacer/protector for stacking recorded 33 rpm records

Spare and calibration sector management for optical WORM media

Spare area with a predetermined capacity for a detective...

Spatial light modulator for holographic data storage

Spatially-spectrally swept optical memories and addressing...

Spatially-spectrally swept optical memories and addressing...

Spatially-spectrally swept optical memories and addressing...

Speech controlled start-stop of tape recorder in record and repr

Speed and position control apparatus for positioning a movable o

Speed control method for recording data on an optical disk