APPARATUS AND METHOD TO ENCODE INFORMATION HOLOGRAPHICALLY
    11.
    发明申请
    APPARATUS AND METHOD TO ENCODE INFORMATION HOLOGRAPHICALLY 失效
    用于全息编码信息的装置和方法

    公开(公告)号:US20090086299A1

    公开(公告)日:2009-04-02

    申请号:US11864675

    申请日:2007-09-28

    IPC分类号: 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。

    Method for Performing Write Calibrations on Holographic Storage Media
    12.
    发明申请
    Method for Performing Write Calibrations on Holographic Storage Media 审中-公开
    在全息存储介质上执行写入校准的方法

    公开(公告)号:US20090048798A1

    公开(公告)日:2009-02-19

    申请号:US11839283

    申请日:2007-08-15

    IPC分类号: G06F19/00

    CPC分类号: G11B7/1267 G11B7/0065

    摘要: A method for performing write calibrations on holographic storage media is disclosed. Initially, five identical and known calibration holograms are written on a holographic storage medium, in which three of the five calibration holograms are written with different laser power and three of the five calibration holograms are written with different time durations. A matched filter is then utilized to determine a cross-correlation between the five calibration holograms read from the holographic storage medium and their corresponding ideal calibration holograms previously stored within a memory device within the holographic storage drive. A least-squares fit of an ellipsoidal parabola to the cross-correlations is subsequently calculated to yield an optimal laser write power level and an optimal duration for a laser write pulse.

    摘要翻译: 公开了一种在全息存储介质上执行写入校准的方法。 最初,将五个相同和已知的校准全息图写在全息存储介质上,其中五个校准全息图中的三个用不同的激光功率写入,并且五个校准全息图中的三个以不同的时间长度写入。 然后使用匹配滤波器来确定从全息存储介质读取的五个校准全息图与其预先存储在全息存储驱动器内的存储器件内的相应的理想校准全息图之间的互相关。 随后计算椭圆抛物线对交叉相关的最小二乘拟合,以产生激光写入脉冲的最佳激光写入功率电平和最佳持续时间。

    APPARATUS AND METHOD TO GENERATE CONVOLUTION ENCODED DATA
    13.
    发明申请
    APPARATUS AND METHOD TO GENERATE CONVOLUTION ENCODED DATA 失效
    生成编码数据的装置和方法

    公开(公告)号:US20090041164A1

    公开(公告)日:2009-02-12

    申请号:US11836678

    申请日:2007-08-09

    IPC分类号: H04L27/06

    CPC分类号: H03M13/235 H03M13/6502

    摘要: An apparatus and method are disclosed to generate convolution encoded data. The method supplies a convolution encoder. The method receives original data and generates convolution encoded original data. The method receives revised data. The method generates an XOR data stream by Exclusive OR'ing the original data with the revised data, forms a convolution encoded XOR data stream using the convolution encoder, and Exclusive ORs the convolution encoded XOR data stream with the convolution encoded original data to generate convolution-encoded revised data.

    摘要翻译: 公开了一种产生卷积编码数据的装置和方法。 该方法提供卷积编码器。 该方法接收原始数据并产生卷积编码的原始数据。 该方法接收修订数据。 该方法通过将原始数据与经修改的数据进行异或运算来产生XOR数据流,使用卷积编码器形成卷积编码的XOR数据流,并将卷积编码的XOR数据流与卷积编码的原始数据进行异或以产生卷积 编码修订数据。

    VERIFICATION OF DATA STORAGE HOLOGRAMS
    14.
    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 STORE INFORMATION IN A HOLOGRAPHIC DATA STORAGE MEDIUM
    15.
    发明申请
    APPARATUS AND METHOD TO STORE INFORMATION IN A HOLOGRAPHIC DATA STORAGE MEDIUM 失效
    在全息数据存储介质中存储信息的装置和方法

    公开(公告)号:US20080218818A1

    公开(公告)日:2008-09-11

    申请号:US11682206

    申请日:2007-03-05

    IPC分类号: G03H1/26

    摘要: A method is disclosed to store information in a holographic data storage medium. The method supplies a holographic data storage medium comprising an encoded focusing hologram and one or more encoded data holograms. The method disposes the holographic data storage medium in a holographic data storage system such that a moveable imaging lens is disposed at an (i)th position. The method illuminates the encoded focusing hologram to generate an (i)th reconstructed focusing image, projects that (i)th reconstructed focusing image through the moveable imaging lens, and onto said optical detector. The method then calculates an (i)th measured focusing metric, and determines if the (i)th measured focusing metric is greater than or equal to the threshold focusing metric. If the (i)th measured focusing metric is greater than or equal to the threshold focusing metric, then the method decodes the one or more encoded data holograms.

    摘要翻译: 公开了一种在全息数据存储介质中存储信息的方法。 该方法提供包括编码聚焦全息图和一个或多个编码数据全息图的全息数据存储介质。 该方法将全息数据存储介质配置在全息数据存储系统中,使得可移动成像透镜设置在第(i)个位置。 该方法照亮编码的聚焦全息图以产生第(i)个重建的聚焦图像,将(i)重建的聚焦图像通过可移动成像透镜投射到所述光学检测器上。 然后,该方法计算(i)测量的聚焦度量,并且确定第(i)个测量的聚焦度量是否大于或等于阈值聚焦度量。 如果(i)测量的聚焦度量大于或等于阈值聚焦度量,则该方法对一个或多个编码的数据全息图进行解码。

    APPARATUS AND METHOD TO ENCODE INFORMATION INTO A HOLOGRAPHIC DATA STORAGE MEDIUM
    16.
    发明申请
    APPARATUS AND METHOD TO ENCODE INFORMATION INTO A HOLOGRAPHIC DATA STORAGE MEDIUM 审中-公开
    将信息编码为全息数据存储介质的装置和方法

    公开(公告)号:US20080192314A1

    公开(公告)日:2008-08-14

    申请号:US11672889

    申请日:2007-02-08

    IPC分类号: G03H1/04

    摘要: A method is disclosed to encode information in a holographic data storage medium. The method supplies a holographic information storage system comprising a laser light source, a spatial light modulator, and a holographic data storage medium. The method energizes the laser light source using first power comprising a first current, disposes a data image on the spatial light modulator, and further energizes the laser light source using second power comprising a second current, wherein the second current is greater than the first current. The method forms a data beam comprising said data image, forms a hologram comprising said data image, and encodes an interference pattern comprising the hologram in the holographic data storage medium.

    摘要翻译: 公开了一种对全息数据存储介质中的信息进行编码的方法。 该方法提供包括激光光源,空间光调制器和全息数据存储介质的全息信息存储系统。 该方法使用包括第一电流的第一功率激励激光光源,将数据图像放置在空间光调制器上,并且使用包括第二电流的第二功率进一步激励激光光源,其中第二电流大于第一电流 。 该方法形成包括所述数据图像的数据波束,形成包括所述数据图像的全息图,并且在全息数据存储介质中编码包括全息图的干涉图案。

    System for compensating for hard sector noise degradation of tracking
error signals in an optical data storage system
    17.
    发明授权
    System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system 有权
    用于补偿光学数据存储系统中跟踪误差信号的硬扇区噪声劣化的系统

    公开(公告)号:US06052345A

    公开(公告)日:2000-04-18

    申请号:US261927

    申请日:1999-03-03

    摘要: The invention provides a system for compensating for hard sector noise degradation of tracking error signals in an optical data storage system. The system includes a hard sector detection circuit which generates a first output signal in response to receiving a first input signal representing detection of a hard sector on a magneto-optical disk; a logic circuit which generates a second output signal in response to receiving the first output signal and a second input signal; and a tracking error signal reconstruction circuit which generates an approximated tracking error signal in response to receiving a tracking error signal and the second output signal. The invention may be embodied as hardwired circuitry or as a combination of hardware and software embodied in a computer readable medium and implemented in a digital computer.

    摘要翻译: 本发明提供了一种用于补偿光学数据存储系统中跟踪误差信号的硬扇区噪声劣化的系统。 该系统包括:硬扇区检测电路,响应于接收表示磁光盘上的硬扇区的检测的第一输入信号,产生第一输出信号; 响应于接收到第一输出信号和第二输入信号而产生第二输出信号的逻辑电路; 以及跟踪误差信号重建电路,其响应于接收到跟踪误差信号和所述第二输出信号而产生近似跟踪误差信号。 本发明可以实现为硬连线电路或者体现在计算机可读介质中并在数字计算机中实现的硬件和软件的组合。

    Method and sytem for cancelling optical servo crosstalk in optical disk
drives
    18.
    发明授权
    Method and sytem for cancelling optical servo crosstalk in optical disk drives 失效
    消除光盘驱动器光伺服串扰的方法和系统

    公开(公告)号:US5768228A

    公开(公告)日:1998-06-16

    申请号:US711001

    申请日:1996-09-09

    IPC分类号: G11B7/085 G11B7/09

    摘要: A method for cancelling optical servo crosstalk within an optical disk drive is disclosed. In accordance with the method and system of the present invention, the optical disk drive system includes a focus control module, a tracking control module, a variable frequency notch filter, and a lookup table. The focus control module is utilized for moving an objective lens in response to a focus error signal in order to maintain a laser beam in an in-focus condition on an optical disk. The tracking control module is utilized for moving a moving optical element in response to a tracking error signal to direct the laser beam onto a desired track position of the optical disk. The lookup table within the focus control module is utilized for storing several sets of tap coefficients for the variable frequency notch filter. An appropriate set of tap coefficients from the lookup table is supplied to the variable frequency notch filter in response to a head velocity signal from the tracking control module such that the effects caused by a false FES in the optical disk drive system are reduced.

    摘要翻译: 公开了一种用于消除光盘驱动器内的光伺服串扰的方法。 根据本发明的方法和系统,光盘驱动系统包括聚焦控制模块,跟踪控制模块,可变频陷波滤波器和查找表。 焦点控制模块用于响应于聚焦误差信号移动物镜,以便将激光束保持在光盘上的对焦状态。 跟踪控制模块用于响应于跟踪误差信号移动移动光学元件以将激光束引导到光盘的期望轨道位置。 焦点控制模块内的查找表用于存储可变频率陷波滤波器的几组抽头系数。 响应于来自跟踪控制模块的头部速度信号,将来自查找表的适当的抽头系数集合提供给可变频率陷波滤波器,使得由光盘驱动系统中的假FES引起的影响减小。

    Apparatus and method to sequentially deduplicate data
    19.
    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。