公开(公告)号：EP0258461A4

公开(公告)日：1988-09-07

申请号：EP87901773

申请日：1987-02-05

申请人： AKAD NAUK SSSR

发明人： PETROV VYACHESLAV VASILIEVICH ,  GORSHKOV NIKOLAI VASILIEVICH ,  ANTONOV ALEXANDR ALEXANDROVICH ,  KRJUCHIN ANDREI ANDREEVICH ,  TOKAR ALEXANDR PETROVICH ,  SHANOILO SEMEN MIKHAILOVICH ,  GRINKO DMITRY ALEXANDROVICH ,  SERGIENKO TATYANA IVANOVNA ,  JUDIN GENNADY JURIEVICH ,  ANTONOV EVGENY EVGENIEVICH ,  POPOVICH VLADISLAV IVANOVICH

IPC分类号： B41M5/26 ,  G11B7/00 ,  G11B7/0025 ,  G11B7/004 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/30 ,  G11C13/04

CPC分类号： G11B7/24 ,  G11B7/0025 ,  G11B7/0055

摘要： An optical information carrier comprises a cylinder (1) with a recording layer (2) inside it, as well as bushings (3, 4) mounted on the butt-ends of the cylinder (1) and isolating the recording layer (2) from the outside space. A method of erasing information recorded on said optical carrier consists in the excitation of a high-frequency electrical charge inside a sealed closed cavity (5) of the cylinder (1). An optical memorization device for implementation of said method has an information erasing unit (11) comprising a high frequency charge excitation circuit with electrodes (12, 13), between which an optical information carrier (10) is placed in order to excitate a high-frequency charge inside its sealed closed cavity (5).