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公开(公告)号：US20080235556A1
公开(公告)日：2008-09-25
申请号：US11690619
申请日：2007-03-23
IPC分类号： H03M13/00
CPC分类号： H03M13/15 , G11B20/1426 , H03M13/2707 , H03M13/2721 , H03M13/275 , H03M13/2792 , H03M13/2909 , H03M13/53
摘要： A system is provided to encode data for recording onto media whereby modulation and linear constraints from a concatenated code or product code are imposed. A first array of unencoded user data is generated. Each row is modulation encoded to enforce a first modulation constraint; the array is transformed into a second array which is transformed into a third array having predetermined empty locations in each column interleaved with the modulated data. A C2-parity byte is computed for at least some of the empty locations of the third array and a fourth array is generated. C1-parity symbols in each row are computed, generating a fifth array. A second modulation constraint is enforced on each C1-parity symbol in each row of the fifth array, generating a sixth array. The rows of the sixth array are assembled with header and sync fields for recording onto a recording media.
摘要翻译： 提供了一种系统来编码用于记录到介质上的数据，由此施加来自级联代码或产品代码的调制和线性约束。 生成第一组未编码的用户数据。 每行被调制编码以执行第一调制约束; 该阵列被变换成第二阵列，该第二阵列被转换成具有与调制数据交错的每列中的预定空位置的第三阵列。 对于第三阵列的至少一些空位置计算C2奇偶校验字节，并且生成第四阵列。 计算每行中的C1奇偶校验符号，生成第五个数组。 在第五阵列的每行中的每个C1奇偶校验符号上强制执行第二调制约束，产生第六阵列。 第六阵列的行与标题和同步字段组合，用于记录到记录介质上。
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公开(公告)号：US07877662B2
公开(公告)日：2011-01-25
申请号：US11690619
申请日：2007-03-23
IPC分类号： H03M13/00
CPC分类号： H03M13/15 , G11B20/1426 , H03M13/2707 , H03M13/2721 , H03M13/275 , H03M13/2792 , H03M13/2909 , H03M13/53
摘要： A system is provided to encode data for recording onto media whereby modulation and linear constraints from a concatenated code or product code are imposed. A first array of unencoded user data is generated. Each row is modulation encoded to enforce a first modulation constraint; the array is transformed into a second array which is transformed into a third array having predetermined empty locations in each column interleaved with the modulated data. A C2-parity byte is computed for at least some of the empty locations of the third array and a fourth array is generated. C1-parity symbols in each row are computed, generating a fifth array. A second modulation constraint is enforced on each C1-parity symbol in each row of the fifth array, generating a sixth array. The rows of the sixth array are assembled with header and sync fields for recording onto a recording media.
摘要翻译： 提供了一种系统来编码用于记录到介质上的数据，由此施加来自级联代码或产品代码的调制和线性约束。 生成第一组未编码的用户数据。 每行被调制编码以执行第一调制约束; 该阵列被变换成第二阵列，该第二阵列被转换成具有与调制数据交错的每列中的预定空位置的第三阵列。 对于第三阵列的至少一些空位置计算C2奇偶校验字节，并且生成第四阵列。 计算每行中的C1奇偶校验符号，生成第五个数组。 在第五阵列的每行中的每个C1奇偶校验符号上强制执行第二调制约束，产生第六阵列。 第六阵列的行与标题和同步字段组合，用于记录到记录介质上。
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公开(公告)号：US07873894B2
公开(公告)日：2011-01-18
申请号：US11690635
申请日：2007-03-23
IPC分类号： H03M13/00
CPC分类号： G11B20/1426 , G11B20/1833 , G11B2020/1446 , G11B2220/2516 , G11B2220/90
摘要： Method and computer program product are provided to encode data for recording onto media whereby modulation and linear constraints from a concatenated code or product code are imposed. A first array of unencoded user data is generated. Each row is modulation encoded to enforce a first modulation constraint; the array is transformed into a second array which is transformed into a third array having predetermined empty locations in each column interleaved with the modulated data. A C2-parity byte is computed for at least some of the empty locations of the third array and a fourth array is generated. C1-parity symbols in each row are computed, generating a fifth array. A second modulation constraint is enforced on each C1-parity symbol in each row of the fifth array, generating a sixth array. The rows of the sixth array are assembled with header and sync fields for recording onto a recording media.
摘要翻译： 提供方法和计算机程序产品以对用于记录到介质上的数据进行编码，从而施加来自级联代码或产品代码的调制和线性约束。 生成第一组未编码的用户数据。 每行被调制编码以执行第一调制约束; 该阵列被变换成第二阵列，该第二阵列被转换成具有与调制数据交错的每列中的预定空位置的第三阵列。 对于第三阵列的至少一些空位置计算C2奇偶校验字节，并且生成第四阵列。 计算每行中的C1奇偶校验符号，生成第五个数组。 在第五阵列的每行中的每个C1奇偶校验符号上强制执行第二调制约束，产生第六阵列。 第六阵列的行与标题和同步字段组合，用于记录到记录介质上。
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24.发明授权Encoding a data word for writing the encoded data word in a multi-level solid state memory 有权编码用于将编码数据字写入多级固态存储器的数据字公开(公告)号：US09059744B2
公开(公告)日：2015-06-16
申请号：US13596351
申请日：2012-08-28
IPC分类号： G11C29/00 , H03M13/25 , H03M13/29 , H03M13/31 , H03M13/35 , G11C11/56 , G06F11/10 , H03M13/15 , H03M13/19
CPC分类号： H03M13/251 , G06F11/1072 , G11C11/5678 , G11C29/00 , G11C29/70 , G11C2211/5641 , H03M13/1515 , H03M13/19 , H03M13/253 , H03M13/2906 , H03M13/31 , H03M13/353
摘要： A method for encoding a data word for writing an encoded data word in N cells of a solid state memory. Each of the N cells can be programmed in one of q nominal levels. The method includes encoding the data word as a codeword of a first codeword type having q symbol values or as a codeword of a second codeword type having (q−d) symbol values, dε[1, . . . , q−1], depending on a state of the N cells.
摘要翻译： 一种编码用于在固态存储器的N个单元中写入编码数据字的数据字的方法。 N个单元中的每一个可以以q个标称电平中的一个编程。 该方法包括将数据字编码为具有q个符号值的第一码字类型的码字，或者作为具有（q-d）符号值的第二码字类型的码字，d＆egr [ 。 。 ，q-1]，取决于N细胞的状态。
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公开(公告)号：US08897062B2
公开(公告)日：2014-11-25
申请号：US13150690
申请日：2011-06-01
申请人： Matthew J. Breitwisch , Roger W. Cheek , Stefanie R. Chiras , Ibrahim M. Elfadel , Michele M. Franceschini , John P. Karidis , Luis A. Lastras-Montano , Thomas Mittelholzer , Mayank Sharma
发明人： Matthew J. Breitwisch , Roger W. Cheek , Stefanie R. Chiras , Ibrahim M. Elfadel , Michele M. Franceschini , John P. Karidis , Luis A. Lastras-Montano , Thomas Mittelholzer , Mayank Sharma
CPC分类号： G11C29/02 , G11C13/0004 , G11C13/0064 , G11C13/0069 , G11C29/021 , G11C29/028 , G11C2013/0092
摘要： Systems, methods, and devices for iteratively writing contents to memory locations are provided. A statistical model is used to determine a sequence of pulses to write desired contents to a memory location. The contents can be expressed as a resistance value in a range to store one or more bits in a memory cell. For phase change memory, an adaptive reset pulse and one or more annealing pulses are selected based on a desired resistance range. Reading the resistance value of the memory cell can provide feedback to determine adjustments in an overall pulse application strategy. The statistical model and a look up table can be used to select and modify pulses. Adaptively updating the statistical model and look up table may reduce the number of looping iterations to shift the resistance value of the memory cell into the desired resistance range.
摘要翻译： 提供了用于向内存位置迭代地写入内容的系统，方法和设备。 统计模型用于确定将所需内容写入存储器位置的脉冲序列。 内容可以表示为在存储单元中存储一个或多个位的范围内的电阻值。 对于相变存储器，基于期望的电阻范围来选择自适应复位脉冲和一个或多个退火脉冲。 读取存储器单元的电阻值可提供反馈以确定整体脉冲应用策略中的调整。 统计模型和查询表可用于选择和修改脉冲。 自适应地更新统计模型和查找表可以减少循环迭代的次数以将存储器单元的电阻值移动到期望的电阻范围。
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26.发明授权公开(公告)号：US08762805B2
公开(公告)日：2014-06-24
申请号：US12957651
申请日：2010-12-01
申请人： Roy Daron Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J Seger , Keisuke Tanaka
发明人： Roy Daron Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J Seger , Keisuke Tanaka
IPC分类号： G06F11/00
CPC分类号： G06F11/1012 , H03M13/1515 , H03M13/2909
摘要： A method for decoding encoded data comprising integrated data and header protection is disclosed herein. In one embodiment, such a method includes receiving an extended data array. The extended data array includes a data array organized into rows and columns, headers appended to the rows of the data array, column ECC parity protecting the columns of the data array, and row ECC parity protecting the rows and headers combined. The method then decodes the extended data array. Among other operations, this decoding step includes checking the header associated with each row to determine whether the header is legal. If the header is legal, the method determines the contribution of the header to the corresponding row ECC parity. The method then reverses the contribution of the header to the corresponding row ECC parity. A corresponding apparatus (i.e., a tape drive configured to implement the above-described method) is also disclosed herein.
摘要翻译： 本文公开了一种用于对包括集成数据和报头保护的编码数据进行解码的方法。 在一个实施例中，这种方法包括接收扩展数据阵列。 扩展数据阵列包括组织成行和列的数据阵列，附加到数据阵列行的标题，保护数据阵列列的ECC ECC奇偶校验和保护行和头组合的行ECC奇偶校验。 该方法然后解码扩展数据数组。 在其他操作中，该解码步骤包括检查与每行关联的标题以确定标题是否合法。 如果标题是合法的，则该方法确定标题对相应行ECC奇偶校验的贡献。 该方法然后将标题的贡献反转到对应的行ECC奇偶校验。 本文还公开了相应的装置（即，被配置为实现上述方法的磁带驱动器）。
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公开(公告)号：US08645800B2
公开(公告)日：2014-02-04
申请号：US13451233
申请日：2012-04-19
申请人： Roy Daron Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J Seger , Keisuke Tanaka
发明人： Roy Daron Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J Seger , Keisuke Tanaka
IPC分类号： G06F11/00
CPC分类号： G11B20/18 , G11B2020/184 , G11B2020/1853 , G11B2220/90
摘要： A method for integrating data and header protection in tape drives includes receiving an array of data organized into rows and columns. The array is extended to include one or more headers for each row of data in the array. The method provides two dimensions of error correction code (ECC) protection for the data in the array and a single dimension of ECC protection for the headers in the array. A corresponding apparatus is also disclosed herein.
摘要翻译： 在磁带驱动器中集成数据和头部保护的方法包括接收一组数据组织成行和列。 该数组被扩展以包括数组中每行数据的一个或多个头。 该方法为阵列中的数据提供了二维纠错码（ECC）保护，并为阵列中的标头提供了ECC保护的一个维度。 本文还公开了相应的装置。
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28.发明授权公开(公告)号：US08259405B2
公开(公告)日：2012-09-04
申请号：US12351756
申请日：2009-01-09
IPC分类号： G11B20/16
CPC分类号： G11B20/1883 , G11B20/1833 , G11B20/1879 , G11B2020/183 , G11B2020/1836 , G11B2220/90
摘要： During a read-after-write operation on magnetic tape, a first SCO is formed which includes two encoded processed user data units and is one of T SCOs in a first SCO set. The user data units are each one of T user data units in first and second user data unit sets, respectively, within the first SCO set. The first SCO set is written to the magnetic tape and is immediately read. When an error is detected in one of the user data units, a second SCO is formed to include the first user data unit and, only if an error is not detected in a user data unit in the other user data unit set, to not include the other user data unit, the second SCO being one of T SCOs in a second SCO set. Then, the second SCO set is rewritten to a later position on the tape later.
摘要翻译： 在磁带读写操作期间，形成第一SCO，其包括两个经编码的处理的用户数据单元，并且是第一SCO组中的T SCO之一。 用户数据单元分别在第一SCO集合内的第一和第二用户数据单元组中的T个用户数据单元中的每一个。 第一个SCO组写入磁带并立即读取。 当在用户数据单元之一中检测到错误时，形成第二SCO以包括第一用户数据单元，并且仅当在另一个用户数据单元组中的用户数据单元中没有检测到错误时，不包括 另一用户数据单元，第二SCO是第二SCO组中的T SCO之一。 然后，第二个SCO组被重新写入磁带的稍后位置。
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29.发明申请公开(公告)号：US20120144271A1
公开(公告)日：2012-06-07
申请号：US12957651
申请日：2010-12-01
申请人： Roy D. Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J. Seger , Keisuke Tanaka
发明人： Roy D. Cideciyan , Hisato Matsuo , Thomas Mittelholzer , Kenji Ohtani , Paul J. Seger , Keisuke Tanaka
IPC分类号： G11C29/00
CPC分类号： G06F11/1012 , H03M13/1515 , H03M13/2909
摘要： A method for decoding encoded data comprising integrated data and header protection is disclosed herein. In one embodiment, such a method includes receiving an extended data array. The extended data array includes a data array organized into rows and columns, headers appended to the rows of the data array, column ECC parity protecting the columns of the data array, and row ECC parity protecting the rows and headers combined. The method then decodes the extended data array. Among other operations, this decoding step includes checking the header associated with each row to determine whether the header is legal. If the header is legal, the method determines the contribution of the header to the corresponding row ECC parity. The method then reverses the contribution of the header to the corresponding row ECC parity. A corresponding apparatus (i.e., a tape drive configured to implement the above-described method) is also disclosed herein.
摘要翻译： 本文公开了一种用于对包括集成数据和报头保护的编码数据进行解码的方法。 在一个实施例中，这种方法包括接收扩展数据阵列。 扩展数据阵列包括组织成行和列的数据阵列，附加到数据阵列行的标题，保护数据阵列列的ECC ECC奇偶校验和保护行和头组合的行ECC奇偶校验。 该方法然后解码扩展数据数组。 在其他操作中，该解码步骤包括检查与每行关联的标题以确定标题是否合法。 如果标题是合法的，则该方法确定标题对相应行ECC奇偶校验的贡献。 该方法然后将标题的贡献反转到对应的行ECC奇偶校验。 本文还公开了相应的装置（即，被配置为实现上述方法的磁带驱动器）。
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公开(公告)号：US20120036318A1
公开(公告)日：2012-02-09
申请号：US12849743
申请日：2010-08-03
IPC分类号： G06F12/00
CPC分类号： G06F3/0619 , G06F3/064 , G06F3/0682
摘要： A method for efficiently rewriting data to tape is disclosed herein. In one embodiment, such a method includes writing a data set to tape, the data set comprising S sub data sets of fixed size, each sub data set comprising N code word interleaves (CWIs). The method further includes reading the data set while writing it to the tape to identify faulty CWIs. While reading the data set, the method buffers the faulty CWIs (such as by storing, identifying, and/or marking the faulty CWIs) for later retrieval. When the end of the data set is reached, the method writes corrected versions of the faulty CWIs to the end of the data set. A corresponding apparatus is also disclosed and claimed herein.
摘要翻译： 本文公开了一种有效地将数据重写到磁带的方法。 在一个实施例中，这种方法包括将数据集写入磁带，数据组包括固定大小的S个子数据集，每个子数据集包括N个码字交织（CWI）。 该方法还包括在将数据集写入磁带时识别数据集以识别故障CWI。 在读取数据集时，该方法缓冲有缺陷的CWI（例如通过存储，识别和/或标记故障的CWI）来稍后检索。 当达到数据集的结尾时，该方法会将故障CWI的修正版本写入数据集的末尾。 本文还公开并要求对应的装置。
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