Optical information recorder (reflection holographic memory device)
    1.
    发明授权
    Optical information recorder (reflection holographic memory device) 有权
    光信息记录器(反射全息存储装置)

    公开(公告)号:US08120826B2

    公开(公告)日:2012-02-21

    申请号:US11794727

    申请日:2005-11-07

    IPC分类号: G03H1/10 G03H1/12

    摘要: A holographic memory device is described which records and reproduces binary image data by irradiating a holographic recording medium with signal light and reference light. The holographic memory device includes a system for aligning polarization of the signal light and reference light on the holographic recording medium by guiding the signal light and the reference light to be coaxially opposed. The holographic memory device further includes a random-phase modulation multiplex recorder and spatial-shift multiplex recorder that, together with the system for aligning polarization, significantly enhances recording density and improves recording capacity.

    摘要翻译: 描述了通过用信号光和参考光照射全息记录介质来记录和再现二值图像数据的全息存储器件。 全息存储装置包括通过引导信号光和同轴对置的参考光来对齐在全息记录介质上的信号光和参考光的偏振的系统。 全息存储装置还包括随机相位调制多路复用记录器和空间位移多路复用记录器,其与用于对准偏振的系统一起显着增强记录密度并提高记录容量。

    Optical Information Recorder (Reflection Holographic Memory Device)
    2.
    发明申请
    Optical Information Recorder (Reflection Holographic Memory Device) 有权
    光信息记录器(反射全息记忆装置)

    公开(公告)号:US20090122376A1

    公开(公告)日:2009-05-14

    申请号:US11794727

    申请日:2005-11-07

    IPC分类号: G03H1/04

    摘要: A holographic memory in which a disk recording medium having a mechanism for operating an optical pick-up system is used, signal and reference light beams are so coaxially directed as to be opposed, the polarization planes of the signal with each other on the disk recording medium and which is well compatible with existing techniques and high in cost performance when manufactured as a product. The reflection holographic memory comprises random-phase modulation multiplex recording means disposed in the light guide of the signal and/or reference light beams and a spatial-shift multiplex recording means so as to increase the recording capacity. Signals are recorded in the thickness direction of the disk so as to further increase the recoding capacity. That is, by combining random-phase modulation multiplex recording and spatial-shift multiplex recording, the recording density is enhanced tens to hundreds times to improve the recording capacity of multilayer type by using a micro recording area of the reflection hologram. Simultaneously, the encryption effect can be produced by the random-phase modulation multiplex recording.

    摘要翻译: 一种全息存储器,其中使用具有用于操作光学拾取系统的机构的盘记录介质,信号和参考光束被同轴地指向为相对,信号的偏振面彼此在盘记录上 介质,并且与制造成产品时的现有技术和成本性能很好地兼容。 反射全息存储器包括设置在信号和/或参考光束的光导中的随机相位调制多路复用记录装置和空间位移多路复用记录装置,以便增加记录容量。 在盘的厚度方向记录信号,以进一步提高记录容量。 也就是说,通过组合随机相位调制多路复用记录和空间位移多路复用记录,通过使用反射全息图的微记录区,记录密度增加了数十到数百次,以提高多层型的记录容量。 同时,可以通过随机相位调制多路复用记录产生加密效果。

    Holographic memory information encoding method, holographic memory recording method, and holographic memory device
    3.
    发明授权
    Holographic memory information encoding method, holographic memory recording method, and holographic memory device 有权
    全息记忆信息编码方法,全息存储记录方法和全息存储装置

    公开(公告)号:US08976638B2

    公开(公告)日:2015-03-10

    申请号:US14130445

    申请日:2012-08-15

    申请人: Osamu Matoba

    发明人: Osamu Matoba

    摘要: Provided is an information encoding method and a holographic memory device which increase the amount of information per page of a holographic memory and reduce the bit error rate to ensure a larger multiplexing number. The holographic memory information encoding method expresses information of signal page data in a holographic memory as a multi-stage data using different resolution by block coding, and superimposes each data on a single page of signal page data. The multi-stage data using different resolution is realized by light amplitude data and phase data. The amplitude data is divided by area through block coding. When n odd-numbered ON bits exist in a divided area of the phase data, a phase of 2πs/n (where n and s are natural numbers) is imparted as s-th phase information to one value of binary data, and the same phase is imparted to the other value of binary data.

    摘要翻译: 提供了一种信息编码方法和全息存储装置,其增加全息存储器的每页信息量并降低误码率,以确保更大的复用数。 全息存储器信息编码方法将全息存储器中的信号页数据的信息表示为使用不同分辨率的块编码的多级数据,并将每个数据叠加在单页信号页数据上。 使用不同分辨率的多级数据由光幅数据和相位数据实现。 通过块编码将振幅数据除以面积。 当相位数据的分割区域存在n个奇数ON位时,将2&pgr / s / n(其中n和s为自然数)的相位作为第二相位信息赋予二值数据的一个值,并且 对二进制数据的其他值赋予相同的相位。

    HOLOGRAPHIC MEMORY INFORMATION ENCODING METHOD, HOLOGRAPHIC MEMORY RECORDING METHOD, AND HOLOGRAPHIC MEMORY DEVICE
    4.
    发明申请
    HOLOGRAPHIC MEMORY INFORMATION ENCODING METHOD, HOLOGRAPHIC MEMORY RECORDING METHOD, AND HOLOGRAPHIC MEMORY DEVICE 有权
    全息记忆信息编码方法,全息记忆记录方法和全息记忆装置

    公开(公告)号:US20140119168A1

    公开(公告)日:2014-05-01

    申请号:US14130445

    申请日:2012-08-15

    申请人: Osamu Matoba

    发明人: Osamu Matoba

    IPC分类号: G11B7/007

    摘要: Provided is an information encoding method and a holographic memory device which increase the amount of information per page of a holographic memory and reduce the bit error rate to ensure a larger multiplexing number. The holographic memory information encoding method expresses information of signal page data in a holographic memory as a multi-stage data using different resolution by block coding, and superimposes each data on a single page of signal page data. The multi-stage data using different resolution is realized by light amplitude data and phase data. The amplitude data is divided by area through block coding. When n odd-numbered ON bits exist in a divided area of the phase data, a phase of 2πs/n (where n and s are natural numbers) is imparted as s-th phase information to one value of binary data, and the same phase is imparted to the other value of binary data.

    摘要翻译: 提供了一种信息编码方法和全息存储装置,其增加全息存储器的每页信息量并降低误码率,以确保更大的复用数。 全息存储器信息编码方法将全息存储器中的信号页数据的信息表示为使用不同分辨率的块编码的多级数据,并将每个数据叠加在单页信号页数据上。 使用不同分辨率的多级数据由光幅数据和相位数据实现。 通过块编码将振幅数据除以面积。 当相位数据的分割区域存在n个奇数ON位时,将2&pgr / s / n(其中n和s为自然数)的相位作为第二相位信息赋予二值数据的一个值,并且 对二进制数据的其他值赋予相同的相位。