Redundancy protection for data recorded across multiple layers of recording media
    2.
    发明授权
    Redundancy protection for data recorded across multiple layers of recording media 失效
    对多层记录媒体记录的数据进行冗余保护

    公开(公告)号:US07721186B2

    公开(公告)日:2010-05-18

    申请号:US11380721

    申请日:2006-04-28

    IPC分类号: H03M13/00

    摘要: To improve reliability for multi-layer media, a data stream U is received for recording to a multi-layer rotating storage medium, the data stream U comprising a sequence of data bits. Each data bit U(J) is encoded into X representation bits. A first representation bit B(1,J) is recorded onto a first layer of the storage media, the second representation bit B(2,J) is recorded onto a second layer of the storage media, etc. When a request to read the recorded data U from the storage media is subsequently received, a plurality of the X representation bits are read back from the storage media and are decoded into the original data bit U(J). One embodiment employs a convolution encoding algorithm and PRML decoding algorithm. Another embodiment employs Reed Solomon encoding/decoding.

    摘要翻译: 为了提高多层媒体的可靠性,接收数据流U以便记录到多层旋转存储介质中,数据流U包括一系列数据位。 每个数据位U(J)被编码为X表示位。 第一表示位B(1,J)被记录在存储介质的第一层上,第二表示位B(2,J)被记录在存储介质的第二层上等。当请求读取 随后接收来自存储介质的记录数据U,从存储介质读回多个X表示位,并将其解码为原始数据位U(J)。 一个实施例采用卷积编码算法和PRML解码算法。 另一个实施例采用Reed Solomon编码/解码。

    Apparatus and method to encode information holographically
    4.
    发明授权
    Apparatus and method to encode information holographically 失效
    全息地编码信息的装置和方法

    公开(公告)号:US07999984B2

    公开(公告)日:2011-08-16

    申请号:US11864675

    申请日:2007-09-28

    IPC分类号: G02B5/32 G03H1/04

    摘要: A method to encode information holographically, wherein the method provides information, and generates a plurality of data images, wherein each data image comprises a portion of the information. The method holographically encodes each of the plurality of data images in a holographic data storage medium, generates a plurality of identifiers, and associates a different one of the plurality of identifiers with a different one of the plurality of data images. The method forms a directory image reciting each of plurality of identifiers, encodes the directory image in a non-holographic data storage medium, and holographically encodes the directory image in the holographic data storage medium.

    摘要翻译: 一种全息地编码信息的方法,其中该方法提供信息,并产生多个数据图像,其中每个数据图像包括信息的一部分。 该方法全息地对全息数据存储介质中的多个数据图像中的每一个进行编码,生成多个标识符,并将多个标识符中的不同标识符与多个数据图像中的不同的一个相关联。 该方法形成背景多个标识符中的每一个的目录图像,在非全息数据存储介质中编码目录图像,并对全息数据存储介质中的目录图像进行全息编码。

    VERIFICATION OF DATA STORAGE HOLOGRAMS
    7.
    发明申请
    VERIFICATION OF DATA STORAGE HOLOGRAMS 审中-公开
    数据存储HOLOGRAMS的验证

    公开(公告)号:US20090002788A1

    公开(公告)日:2009-01-01

    申请号:US11771104

    申请日:2007-06-29

    IPC分类号: G02B5/32

    摘要: A holographic storage drive of a holographic data storage system is configured to write and read holograms with respect to a plurality of locations of a holographic storage medium; and a control is configured to operate the holographic storage drive to write a known image aggregated with data in the form of a hologram to the holographic storage medium; to operate the holographic storage drive to read back the written hologram, employing a partial matched filter to cross-correlate the read-back image with the ideal version of the known image, excluding the remainder of the written hologram; and to determine whether the cross-correlation at least meets a write/readback threshold.

    摘要翻译: 全息数据存储系统的全息存储驱动器被配置为相对于全息存储介质的多个位置写入和读取全息图; 并且控制被配置为操作全息存储驱动器以将以全息图的形式的数据聚合的已知图像写入全息存储介质; 为了操作全息存储驱动器以读回书写的全息图,采用部分匹配滤波器将回读图像与已知图像的理想版本交叉相关,不包括写入的全息图的剩余部分; 并且确定互相关是否至少满足写回读阈值。

    Apparatus and method to sequentially deduplicate data
    8.
    发明授权
    Apparatus and method to sequentially deduplicate data 有权
    依次重复数据删除的设备和方法

    公开(公告)号:US09275067B2

    公开(公告)日:2016-03-01

    申请号:US12404998

    申请日:2009-03-16

    IPC分类号: G06F7/00 G06F17/30

    摘要: A method to sequentially deduplicate data, wherein the method receives a plurality of computer files, wherein each of the plurality of computer files comprises a label comprising a file name, a file type, a version number, and file size, and stores that plurality of computer files in a deduplication queue. The method then identifies a subset of the plurality of computer files, wherein each file of the subset comprises the same file name but a different version number, and wherein the subset comprises a maximum count of version numbers, and wherein the subset comprises a portion of the plurality of computer files. The method deduplicates the subset using a hash algorithm, and removes the subset from said deduplication queue.

    摘要翻译: 一种用于顺序地重复数据删除数据的方法,其中所述方法接收多个计算机文件,其中所述多个计算机文件中的每一个包括包括文件名,文件类型,版本号和文件大小的标签,并且存储所述多个 重复数据删除队列中的计算机文件。 该方法然后识别多个计算机文件的子集,其中该子集的每个文件包含相同的文件名但不同的版本号,并且其中该子集包括版本号的最大计数,并且其中该子集包括 多个计算机文件。 该方法使用散列算法对子集进行重复数据删除,并从所述重复数据消除队列中删除该子集。

    Apparatus and method for holographic information storage and retrieval
    9.
    发明授权
    Apparatus and method for holographic information storage and retrieval 失效
    全息信息存储和检索的装置和方法

    公开(公告)号:US07907773B2

    公开(公告)日:2011-03-15

    申请号:US11643605

    申请日:2006-12-20

    IPC分类号: G06K9/00 G06K9/36 G03H1/10

    CPC分类号: G11B7/00772 G11B7/0065

    摘要: A method is disclosed to store and retrieve information using holographic data storage media. The method provides original data, generates a first image of that original data, and encodes that first image in a holographic data storage medium at a first storage location. The method then generates a second image of the original data, where the second image differs from the first image, and encodes the second image in a holographic data storage medium at a second storage location, where the second storage location differs from the first storage location.

    摘要翻译: 公开了一种使用全息数据存储介质来存储和检索信息的方法。 该方法提供原始数据,产生该原始数据的第一图像,并将该第一图像编码在第一存储位置的全息数据存储介质中。 然后,该方法生成原始数据的第二图像,其中第二图像与第一图像不同,并且将第二图像编码在第二存储位置处的第二存储位置处的第二存储位置处的全息数据存储介质中,其中第二存储位置与第一存储位置不同 。

    Apparatus and method to determine an optimal power level to encode information holographically
    10.
    发明授权
    Apparatus and method to determine an optimal power level to encode information holographically 失效
    确定全息地编码信息的最佳功率电平的装置和方法

    公开(公告)号:US07813250B2

    公开(公告)日:2010-10-12

    申请号:US11737670

    申请日:2007-04-19

    IPC分类号: G11B7/00

    摘要: A method is disclosed to determine an optimal power level to encode information holographically. The method sets (N) evaluation power levels, displays an evaluation image on a spatial light modulator. For each value of (i), the method energizes a light source using the (i)th power level, generates the (i)th reference beam, generates the (i)th carrier beam, forms the (i)th data beam comprising the evaluation image, forms the (i)th hologram using the (i)th reference beam and the (i)th data beam, and encodes the (i)th hologram in a holographic data storage medium, where (i) is greater than or equal to 1 and less than or equal to (N).

    摘要翻译: 公开了一种确定全息地编码信息的最佳功率电平的方法。 方法设置(N)评估功率水平,在空间光调制器上显示评估图像。 对于(i)的每个值,该方法使用(i)功率电平激励光源,生成第(i)个参考光束,生成第(i)个载波束,形成第(i)个数据波束,其包括 评估图像使用第(i)个参考光束和第(i)个数据光束形成第(i)全息图,并且在全息数据存储介质中对(i)全息图进行编码,其中(i)大于 或等于1且小于或等于(N)。