DEVICE TO RECORD AND PLAYBACK INFORMATION Russian patent published in 1995 - IPC

FIELD: computer engineering. SUBSTANCE: for increase of density of recording and authenticity of playback of information cylindrical medium 6 is placed into container 4 filled with immersion fluid 5 and has drives of rotation and axial movement. Rotor 15 of drive of rotation is located on one of butts of information medium and stator of this drive embraces container 4 on side of location of rotor. Stator is manufactured in the form of magnetic clutch 8 and is kinematically coupled to electric motor 10 of rotation. Magnetic clutch may be fabricated either from permanent magnets put regularly or from one or several pairs of poles of magnetically soft material. EFFECT: increased density and authenticity of information playback. 3 cl, 2 dwg