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1. 发明授权

US11817124B2 Composite data recovery procedure 有权
公开(公告)号：US11817124B2
公开(公告)日：2023-11-14
申请号：US17542875
申请日：2021-12-06
申请人： Seagate Technology LLC
发明人： Ara Patapoutian , Jason Charles Jury
IPC分类号： G11B20/18 , G11C29/42 , G11B19/04 , G11C29/52 , H04L43/024 , H03M13/37 , G11B7/09 , G11B20/12
CPC分类号： G11B20/1876 , G11B20/1803 , G06F2211/109 , G11B7/094 , G11B19/041 , G11B20/1258 , G11B20/18 , G11B20/1816 , G11B2020/1222 , G11C29/42 , G11C29/52 , H03M13/3715 , H04L43/024
摘要： A method of recovering data from one or more failed data sectors includes estimating a reader offset position from a first or a second read attempt of the one or more failed data sectors at a current set of channel parameters and basing the estimated reader offset position on, at least in part, a position error signal generated during the first or second read attempt. At least one read is performed on the one or more failed data sectors at the estimated reader offset position to obtain one or more samples. The one or more samples are processed to obtain a processed sample. Iterative outer code recovery is performed on the processed sample.

2. 发明授权

US09858963B2 Storage device, computer-readable nonvolatile storage medium to store control program of storage device, and control method of storage device 有权
公开(公告)号：US09858963B2
公开(公告)日：2018-01-02
申请号：US15450776
申请日：2017-03-06
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA SOLUTIONS CORPORATION
发明人： Kazunori Sekido
IPC分类号： G11B15/18 , G11B20/12 , G11B5/012 , G11B5/09 , G11B5/024 , G11B20/18
CPC分类号： G11B20/1217 , G11B5/012 , G11B5/024 , G11B5/09 , G11B20/1803 , G11B27/329 , G11B2020/1238
摘要： In an embodiment, a storage device includes a shingled magnetic recording device, a management unit, selection unit, and execution unit. The shingled magnetic recording device performs writing in unit of a band including tracks being adjacent to and partially overlapping with each other. The management unit manages management information mutually associating band identifier of the band, characteristic information indicating a possibility that data stored in the band is not referred to, and data identifier of the data in a case where the data is stored in the band. The selection unit selects the band of the shingled magnetic recording device storing the data based on the data and the characteristic information in a case where the shingled magnetic recording device is requested to store the data. The execution unit stores the data to the selected band.

3. 发明申请

US20160357636A1 USING ERROR CORRECTING CODES FOR PARITY PURPOSES 审中-公开
标题翻译：使用错误修正代码用于个性目的
公开(公告)号：US20160357636A1
公开(公告)日：2016-12-08
申请号：US15238977
申请日：2016-08-17
申请人： International Business Machines Corporation
发明人： Son T. Dao , Juergen Haess , Michael Klein , Silvia M. Mueller
IPC分类号： G06F11/10 , H03M13/15 , G06F3/06
CPC分类号： G06F11/10 , G06F3/0619 , G06F3/064 , G06F3/0673 , G06F11/0751 , G06F11/1012 , G06F11/1032 , G06F11/1044 , G06F11/1048 , G06F11/1076 , G11B20/1803 , G11C29/42 , H03M13/09 , H03M13/098 , H03M13/1102 , H03M13/13 , H03M13/1515 , H03M13/152 , H03M13/1575 , H03M13/19 , H03M13/35 , H04L1/0057 , H04L49/557
摘要： Software that provides a subset of error correcting code (ECC) bits to be used for parity purposes. The software performs the following steps: (i) providing, in a data block, a first set of redundant bits adapted to detect and correct errors in the data block, based, at least in part, on a first set of error detection/correction (EDC) requirements; and (ii) providing, within the first set of redundant bits, a first sub-set of parity bit(s) adapted to provide single bit error detection for the data block. The EDC requirements include: (i) a minimum hamming distance, and (ii) the bit(s) in the first set of redundant bits that are not in the first sub-set of parity bit(s) include enough bit(s) to create at least P unique (M-2)-tuples, where P equals the number of bits in the first sub-set of parity bits, and where M equals the minimum hamming distance.
摘要翻译：提供用于奇偶校验目的的纠错码（ECC）位子集的软件。软件执行以下步骤：（i）至少部分地基于第一组错误检测/校正在数据块中提供适于检测和校正数据块中的错误的第一组冗余位（EDC）要求; 以及（ii）在所述第一组冗余位内提供适于为所述数据块提供单个位错误检测的奇偶校验位的第一子集。 EDC要求包括：（i）最小汉明距离，以及（ii）不在奇偶校验位的第一子集中的第一组冗余比特中的比特包括足够的比特，创建至少P唯一（M-2）元组，其中P等于奇偶校验位的第一子集中的位数，以及其中M等于最小汉明距离。

4. 发明授权

US09348697B2 Magnetic random access memory 有权
标题翻译：磁性随机存取存储器
公开(公告)号：US09348697B2
公开(公告)日：2016-05-24
申请号：US14196689
申请日：2014-03-04
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Katsuhiko Hoya
IPC分类号： G11C29/00 , G06F11/10 , H03M13/05 , G11B20/18
CPC分类号： G06F11/1076 , G06F11/10 , G06F11/106 , G11B20/1803 , G11B20/1833 , H03M13/05
摘要： According to one embodiment, a magnetic random access memory includes memory cells, a read circuit, (ECC) circuit, an address register, a flag register, a flag check circuit, and a write back circuit. The memory cells each include a magnetoresistive element. The address register stores the address at which the error has been detected by the ECC circuit. The data register stores corrected data in which the error has been corrected by the ECC circuit. The flag register sets an error flag in association with the address at which the error has been detected by the ECC circuit. The flag check circuit checks whether the error flag is set in the flag register. The write back circuit writes back the data to the memory cell designated by the address corresponding to the error flag.
摘要翻译：根据一个实施例，磁性随机存取存储器包括存储器单元，读取电路（ECC）电路，地址寄存器，标志寄存器，标志检查电路和回写电路。存储单元各自包括磁阻元件。地址寄存器存储由ECC电路检测到错误的地址。数据寄存器存储由ECC电路校正错误的校正数据。标志寄存器与由ECC电路检测到错误的地址相关联地设置错误标志。标志检查电路检查标志寄存器中是否设置了错误标志。写回电路将数据写回由与错误标志对应的地址指定的存储单元。

5. 发明授权

US09189324B2 Data archive system, data recording/reproducing apparatus and data library apparatus 有权
标题翻译：数据归档系统，数据记录/再现装置和数据库装置
公开(公告)号：US09189324B2
公开(公告)日：2015-11-17
申请号：US13853317
申请日：2013-03-29
申请人： Hitachi Consumer Electronics Co., Ltd. , Hitachi-LG Data Storage, Inc.
发明人： Masayuki Kobayashi
IPC分类号： H03M13/00 , G06F11/10 , G11B20/18
CPC分类号： G06F11/10 , G11B20/1803 , H03M13/00
摘要： In a data recording and reproducing apparatus that includes a host computer and a drive in order to improve data reliability, in data recording, the host computer appends a first error correction code to the data and the drive appends a second error correction code to the data. When a failure has occurred in error correction performed by the drive using the second error correction code, the drive reads out the first error correction code and performs error correction using the first error correction code. Since error correction using the first error correction is possible even when error correction using the second error correction code ends in failure, the reliability of data is improved.
摘要翻译：在包括主计算机和驱动器以提高数据可靠性的数据记录和再现装置中，在数据记录中，主计算机向数据附加第一纠错码，驱动器将第二纠错码附加到数据。当使用第二纠错码由驱动器执行的纠错发生故障时，驱动器读出第一纠错码并使用第一纠错码进行纠错。由于即使使用第二纠错码的错误校正结束而导致使用第一纠错的纠错也是可能的，所以提高了数据的可靠性。

6. 发明授权

US09141478B2 Reconstructive error recovery procedure (ERP) using reserved buffer 有权
标题翻译：使用保留缓冲区的重建错误恢复过程（ERP）
公开(公告)号：US09141478B2
公开(公告)日：2015-09-22
申请号：US14149752
申请日：2014-01-07
申请人： International Business Machines Corporation
发明人： Takashi Katagiri , Pamela R. Nylander-Hill , Keisuke Tanaka
IPC分类号： H03M13/00 , G06F11/10 , G11B20/18
CPC分类号： G11B20/1886 , G06F11/1076 , G11B20/1803 , G11B20/1833 , G11B2020/1853
摘要： In one embodiment, a method for assembling data from a medium includes reading a data set from the medium repeatedly using different settings until either: a reconstructed data set is obtained, or a maximum number of rereads has been reached, the data set including a plurality of sub data sets, each sub data set having a plurality of rows, and after each reread of the data set, good rows of data are stored to iteratively construct a good data set from a plurality of good rows as determined by C1 and/or C2 error correction code (ECC).
摘要翻译：在一个实施例中，用于从介质组装数据的方法包括使用不同的设置从介质重复读取数据集，直到获得重建的数据集，或者已经达到最大数目的重新读取，该数据集包括多个的子数据集，每个子数据集具有多个行，并且在每次重新读取数据集之后，存储好的数据行以从多个好的行迭代地构造好的数据集，如由C1和/或 C2纠错码（ECC）。

7. 发明授权

US09105307B2 Data protection system 有权
标题翻译：数据保护系统
公开(公告)号：US09105307B2
公开(公告)日：2015-08-11
申请号：US14593746
申请日：2015-01-09
申请人： Akonia Holographics, LLC
发明人： Tod R. Earhart , Mark Ayres , Will Loechel
IPC分类号： G11B27/32 , G06F3/06 , G06F11/10
CPC分类号： G06F3/0619 , G06F3/06 , G06F3/0623 , G06F3/0644 , G06F3/0673 , G06F3/0676 , G06F11/1016 , G06F11/1076 , G11B7/00781 , G11B20/1217 , G11B20/1803 , G11B20/1866 , G11B20/1879 , G11B27/327 , G11B2020/10861 , G11B2020/1235 , G11B2020/1275 , G11B2020/1278 , G11B2020/1285 , G11B2020/1836 , G11B2020/1896 , G11B2220/2504 , G11B2220/40
摘要： The present invention provides systems and methods for logically organizing data for storage and recovery on a data storage medium using a multi-level format. The present invention also provides systems and methods for protecting data stored on data storage medium so that the data may be recovered without errors.
摘要翻译：本发明提供用于使用多级格式在数据存储介质上逻辑地组织用于存储和恢复的数据的系统和方法。本发明还提供用于保护存储在数据存储介质上的数据的系统和方法，使得数据可以没有错误地被恢复。

8. 发明授权

US09105289B1 Integrated servo field for memory device 有权
标题翻译：集成伺服字段用于存储器件
公开(公告)号：US09105289B1
公开(公告)日：2015-08-11
申请号：US14515220
申请日：2014-10-15
申请人： Seagate Technology LLC
发明人： Bruce Douglas Buch
IPC分类号： G11B5/02 , G11B5/596 , G11B5/55
CPC分类号： G11B20/10388 , G11B5/5539 , G11B5/59616 , G11B5/59627 , G11B20/1803 , G11B2020/1222
摘要： A pattern of features of a storage medium includes first features having a first logical state and second features having a second logical state, wherein a cross track dimension of the first features is different from a cross track dimension of the second features. A transducer of a memory device senses the pattern of features and generates a transducer signal. Read circuitry samples the transducer signal at a frequency of a sampling clock signal and generates a read signal from the sampled transducer signal. Servo electronics includes a demodulator that demodulates at least first and second orthogonal frequency components of the read signal. Timing circuitry synchronizes a phase of the sampling clock signal with a phase of the pattern of features using the first orthogonal frequency component. Position error circuitry generates a signal indicating a cross track positional offset of the transducer relative to the features using the first and second orthogonal frequency components.
摘要翻译：存储介质的特征的图案包括具有第一逻辑状态的第一特征和具有第二逻辑状态的第二特征，其中第一特征的交叉轨道尺寸不同于第二特征的交叉轨道尺寸。存储器件的换能器感测特征的图案并产生换能器信号。读取电路以采样时钟信号的频率对传感器信号进行采样，并从采样的传感器信号产生读取信号。伺服电子装置包括解调器，其解调读取信号的至少第一和第二正交频率分量。定时电路使用第一正交频率分量将采样时钟信号的相位与特征图案的相位同步。位置误差电路使用第一和第二正交频率分量产生指示换能器相对于特征的交叉轨道位置偏移的信号。

9. 发明申请

US20150193303A1 RECONSTRUCTIVE ERROR RECOVERY PROCEDURE (ERP) USING RESERVED BUFFER 有权
标题翻译：重建错误恢复程序（ERP）使用保留缓冲区
公开(公告)号：US20150193303A1
公开(公告)日：2015-07-09
申请号：US14149752
申请日：2014-01-07
申请人： International Business Machines Corporation
发明人： Takashi Katagiri , Pamela R. Nylander-Hill , Keisuke Tanaka
IPC分类号： G06F11/10 , G11B20/18
CPC分类号： G11B20/1886 , G06F11/1076 , G11B20/1803 , G11B20/1833 , G11B2020/1853
摘要： In one embodiment, a method for assembling data from a medium includes reading a data set from the medium repeatedly using different settings until either: a reconstructed data set is obtained, or a maximum number of rereads has been reached, the data set including a plurality of sub data sets, each sub data set having a plurality of rows, and after each reread of the data set, good rows of data are stored to iteratively construct a good data set from a plurality of good rows as determined by C1 and/or C2 error correction code (ECC).
摘要翻译：在一个实施例中，用于从介质组装数据的方法包括使用不同的设置从介质重复读取数据集，直到获得重建的数据集，或者已经达到最大数目的重新读取，该数据集包括多个的子数据集，每个子数据集具有多个行，并且在每次重新读取数据集之后，存储好的数据行以从多个好的行迭代地构造好的数据集，如由C1和/或 C2纠错码（ECC）。

10. 发明授权

US08671250B2 Data storage device generating redundancy for data path protection of a parity sector 有权
标题翻译：数据存储设备产生用于奇偶校验扇区的数据路径保护的冗余
公开(公告)号：US08671250B2
公开(公告)日：2014-03-11
申请号：US13327326
申请日：2011-12-15
申请人： Patrick J. Lee
发明人： Patrick J. Lee
IPC分类号： G06F12/06 , G06F11/08
CPC分类号： G11B20/1803 , G06F11/1016
摘要： A data storage device is disclosed comprising a non-volatile memory. A write command is received comprising a first logical block address (LBA) and first user data, and a second LBA and second user data. The first LBA is mapped to a first physical block address (PBA) for addressing a first memory segment. The second LBA is mapped to a second PBA for addressing a second memory segment. First redundancy is generated in response to the first user data, second redundancy in generated in response to the second user data, and parity data is generated in response to the first and second user data. Third redundancy is generated in response to the parity data and in response to at least one of the first LBA and the first PBA and at least one of the second LBA and the second PBA.
摘要翻译：公开了一种包括非易失性存储器的数据存储设备。接收包括第一逻辑块地址（LBA）和第一用户数据以及第二LBA和第二用户数据的写入命令。第一个LBA被映射到用于寻址第一个存储器段的第一个物理块地址（PBA）。第二个LBA映射到第二个PBA，用于寻址第二个内存段。响应于第一用户数据产生第一冗余，响应于第二用户数据而生成第二冗余，并且响应于第一和第二用户数据生成奇偶校验数据。响应于奇偶校验数据并且响应于第一LBA和第一PBA中的至少一个以及第二LBA和第二PBA中的至少一个而产生第三冗余。

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