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    Apparatus for forming a multiple image laser optical memory
    61.
    发明授权
    Apparatus for forming a multiple image laser optical memory 失效
    用于形成多个图像激光光学记忆体的装置

    公开(公告)号：US3721965A

    公开(公告)日：1973-03-20

    申请号：US3721965D

    申请日：1971-11-22

    Applicant: HONEYWELL INF SYSTEMS

    Inventor： MORGAN VOYCE A

    IPC: G02F1/29 ,  G11C13/06 ,  G11C11/14

    CPC classification number: G02F1/29 ,  G11C13/06

    Abstract: A modulated laser beam having a uniplanar, two direction deflection is directed to a mirror tunnel. The mirror tunnel divides the single laser beam into multiple laser beams. The multiple laser beams are polarized and a beam selector permits only one raster scan from the multiple images of the mirror tunnel to reach the memory film target. The Curie-point recording method forms the information onto the film. For reading information from the target, the laser beam is deflected, multiplied and selected as for writing. Reflected light from a spot on the target exhibits a clockwise or counter-clockwise change in the polarization angle depending on the binary state of the magnetic field. The Kerr-effect polarization change is passed through a polarization filter which permits one state of the magnetic field to be passed and blocks the second state of the magnetic field. The light passing through the polarizing filter is collected by a lens and detected by a light detector such as a photocell. The output of the light detector is directed to a utilization device for use therein.

    Abstract translation: 具有单平面，双向偏转的调制激光束被引导到反射镜通道。 镜面隧道将单个激光束分成多个激光束。 多个激光束是偏振的，并且光束选择器仅允许来自反射镜隧道的多个图像的一次光栅扫描到达记忆膜靶。 居里点记录方法将信息形成电影。 为了从目标读取信息，激光束被偏转，相乘并选择为写入。 来自目标上的点的反射光根据磁场的二进制状态显示偏振角的顺时针或逆时针变化。 克尔效应极化变化通过极化滤波器，其允许磁场的一个状态通过并阻止磁场的第二状态。 通过偏振滤光器的光由透镜收集，并由诸如光电管的光检测器检测。 光检测器的输出被引导到用于其中的利用装置。

    Method and apparatus for reading superimposed magnetic recordings
    62.
    发明授权
    Method and apparatus for reading superimposed magnetic recordings 失效
    读取超磁波记录的方法和装置

    公开(公告)号：US3668671A

    公开(公告)日：1972-06-06

    申请号：US3668671D

    申请日：1969-12-15

    Applicant: IBM

    Inventor： EVERETT LARRY H ,  JUDY JACK H

    IPC: G11B5/86 ,  G11B11/10 ,  G11B11/105 ,  G11C13/06 ,  G11B7/28

    CPC classification number: G11B11/10547 ,  G11B11/10 ,  G11C13/06

    Abstract: Superimposed tracks of magnetic recordings are read by use of a magneto-optic transducer. The recordings are on a magnetic tape which is passed in close proximity to a magnetic thin film layer coated to the reflecting side of a prism. The superimposed recordings on the tape are selectively transferred to the magnetic thin film by an external bias field. The bias field may be selectively energized or selectively positioned to enhance the transfer of one of the plurality of magnetic recordings to the magnetic thin film. The magnetic recording whose transfer is enhanced is the only recording which will be read by use of the magneto-optic effect.

    Abstract translation: 通过使用磁光变换器来读取磁记录的叠加磁迹。 记录在磁带上，磁带紧贴在涂覆到棱镜的反射面的磁性薄膜层上。 磁带上的叠加记录通过外部偏置场选择性地转移到磁性薄膜。 偏置场可以被选择性地激励或选择性地定位以增强多个磁记录中的一个磁记录到磁性薄膜的传递。 传输增强的磁记录是通过使用磁光效应读取的唯一记录。

    MAGNETO-OPTICAL MEMORY INTERFACE
    70.
    发明公开
    MAGNETO-OPTICAL MEMORY INTERFACE 审中-公开

    公开(公告)号：US20230368840A1

    公开(公告)日：2023-11-16

    申请号：US18246780

    申请日：2020-09-30

    Applicant: Tohoku University ,  National Institutes for Quantum Science and Technology

    Inventor： Shigemi Mizukami ,  Shunsuke Fukami ,  Junsaku Nitta ,  Satoshi Iihama ,  Yoshiro Hirayama ,  Seiji Sakai

    IPC: G11C13/06

    CPC classification number: G11C13/06

    Abstract: A magneto-optical memory interface includes: a memory cell structure having multiple allocated magnetic recording cells, a selection means configured to select an individual or a predetermined number of the multiple allocated magnetic recording cells of the memory structure, and configured for an electronic signal to be applicable thereto; and a light irradiation part configured to irradiate the predetermined number of the multiple allocated magnetic memory cells with an optical signal, wherein each of the magnetic recording cells is a magnetic recording cell whose sensitivity to changes in a magnetization state thereof increases in response to an irradiation light from the light irradiation part, and each of the magnetic recording cells is a magnetic recording cell whose magnetization state changes in response to an applied electrical signal resulting from selection by the selection means and the irradiation light from the light irradiation part.

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