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1. 发明申请

WO2007020123A1 METHOD AND APPARATUS FOR PROVIDING ERROR CORRECTION CAPABILITY TO LONGITUDINAL POSITION DATA 审中-公开
标题翻译：用于向长期位置数据提供错误修正能力的方法和装置
公开(公告)号：WO2007020123A1
公开(公告)日：2007-02-22
申请号：PCT/EP2006/063457
申请日：2006-06-22
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , SEGER, Paul , ELEFTHERIOU, Evangelos , JAQUETTE, Glen, Alan , CIDECIYAN, Roy, Daron
发明人： SEGER, Paul , ELEFTHERIOU, Evangelos , JAQUETTE, Glen, Alan , CIDECIYAN, Roy, Daron
IPC分类号： G11B20/18
CPC分类号： G11B20/1201 , G11B20/18 , G11B20/1866 , G11B20/20 , G11B2020/1282 , G11B2020/1284 , G11B2220/90
摘要： A method and apparatus for providing error correction capability to longitudinal position data are disclosed. Initially, data are encoded via a set of even LPOS words and a set of odd LPOS words . The encoded data are then decoded by generating a set of syndrome bits for each of the LPOS words. A determination is then made as to whether or not there is an error within one of the LPOS words based on its corresponding syndrome bits.
摘要翻译：公开了一种向纵向位置数据提供纠错能力的方法和装置。最初，通过一组偶数LPOS字和一组奇数LPOS字对数据进行编码。然后通过为每个LPOS字生成一组校正子位来解码编码数据。然后，基于其对应的校正子位确定是否存在LPOS字之一内的错误。

2. 发明申请

WO2008138707A1 RLL ENCODING 审中-公开
标题翻译： RLL编码
公开(公告)号：WO2008138707A1
公开(公告)日：2008-11-20
申请号：PCT/EP2008/054827
申请日：2008-04-21
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , MITTELHOLZER, Thomas , SEGER, Paul , TANAKA, Keisuke
发明人： CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , MITTELHOLZER, Thomas , SEGER, Paul , TANAKA, Keisuke
IPC分类号： H03M5/14 , G11B20/14
CPC分类号： H03M5/145 , G11B20/1426 , G11B2020/1446 , G11B2020/1473 , G11B2220/90 , G11B2220/956
摘要： An unencoded m -bit data input sequence is divided into a block of n bits and a block of m-n bits. The block of n bits is divided into a first set of n +1 encoded bits, wherein at least one of P 1subblocks of the first set satisfies a G , M and I constraints. The first set of n +1 encoded bits is mapped into a second set of n +1 encoded bits wherein at least one of P 2 subblocks of the second set gives rise to at least Q 1 transitions after 1/(1+ D 2 ) precoding. A second set of n +1 encoded bits is divided into P 3 encoded subblocks and the P 3 encoded subblocks are interleaved among ( m-n )/s unencoded symbols so as to form a ( m+ 1)-bit output sequence codeword which is then stored on a data storage medium.
摘要翻译：未编码的m位数据输入序列被分成n位块和m-n位块。 n位的块被分成第一组n + 1个编码比特，其中第一组的P1块中的至少一个满足G，M和I约束。第一组n + 1编码比特被映射到第n + 1编码比特的第二组，其中第二组的P2子块中的至少一个在1 /（1 + D）之后产生至少Q1个转换

3. 发明申请

WO2010088977A1 REWRITE-EFFICIENT ECC/INTERLEAVING FOR MULTI-TRACK RECORDING ON MAGNETIC TAPE 审中-公开
标题翻译：有效的ECC /用于磁带上的多轨跟踪记录
公开(公告)号：WO2010088977A1
公开(公告)日：2010-08-12
申请号：PCT/EP2009/065849
申请日：2009-11-25
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , MITTELHOLZER, Thomas , CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , TANAKA, Keisuke , MATSUO, Hisato , SEGER, Paul
发明人： MITTELHOLZER, Thomas , CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , TANAKA, Keisuke , MATSUO, Hisato , SEGER, Paul
IPC分类号： G11B20/12 , G11B20/18 , H03M13/27
CPC分类号： G11B20/1833 , G11B20/1201 , G11B20/1866 , G11B2020/1287 , G11B2020/1289 , G11B2020/1446 , G11B2020/1836 , G11B2220/93 , H03M13/27 , H03M13/271
摘要： For writing data to multi-track tape, a received data set is received and segmented into unencoded subdata sets, each comprising an array having K 2 rows and K 1 columns. For each unencoded subdata set, N 1 -K 1 C1-parity bytes are generated for each row and N 2 -K 2 C2-parity bytes are generated for each column. The C1 and C2 parity bytes are appended to the ends of the row and column, respectively, to form encoded C1 and C2 codewords, respectively. All of the C1 codewords per data set are endowed with a specific codeword header to form a plurality of partial codeword objects (PCOs). Each PCO is mapped onto a logical data track according to information within the header. On each logical data track, adjacent PCOs arc merged to form COs which are modulation encoded and mapped into synchronized COs. Then T synchronized COs are written simultaneously to the data tape where T is the number of concurrent active tracks on the data tape.
摘要翻译：为了将数据写入多轨磁带，接收到的数据集并被分割成未编码的子数据集，每个子集包括具有K2行和K1列的阵列。对于每个未编码的子数据集，为每行生成N1-K1 C1-奇偶校验字节，并为每列生成N2-K2 C2-奇偶校验字节。 C1和C2奇偶校验字节分别附加到行和列的末端，分别形成编码的C1和C2码字。每个数据集的所有C1码字都具有特定的码字头以形成多个部分码字对象（PCO）。每个PCO根据标题内的信息被映射到逻辑数据轨道上。在每个逻辑数据轨道上，相邻的PCO被合并以形成被调制编码并被映射到同步的CO中的CO。然后将T同步的CO同时写入数据磁带，其中T是数据磁带上的并发活动磁道的数量。

4. 发明申请

WO2009103675A1 ERROR CORRECTION CAPABILITY FOR LONGITUDINAL POSITION DATA IN A TAPE STORAGE SYSTEM 审中-公开
标题翻译：磁带存储系统中的纵向位置数据的错误校正能力
公开(公告)号：WO2009103675A1
公开(公告)日：2009-08-27
申请号：PCT/EP2009/051770
申请日：2009-02-16
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , SEGER, Paul
发明人： CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos , SEGER, Paul
IPC分类号： G11B20/12 , G11B20/18 , G11B5/584 , G11B15/46 , H03M13/11 , G11B20/14
CPC分类号： G11B20/1201 , G11B5/584 , G11B20/14 , G11B20/1833 , G11B2020/1281 , G11B2020/1284 , G11B2020/1287 , G11B2020/1484 , G11B2220/90 , G11B2220/93 , G11B2220/95
摘要： A longitudinal position (LPOS) word L(n) is encoded with error correction capability. The LPOS word includes a plurality of LPOS symbols L0(n) through Lk(n) calculated as (Formula I) and representing a longitudinal position of a magnetic tape relative to a tape head in a tape storage system. A word type is determined in response to at least one of the plurality of LPOS symbols and, in response to the determined word type, at least one formatted symbol F(n) is generated from the plurality of LPOS symbols L(n). At least one parity symbol P(n) is generated from the formatted symbol F(n). The formatted and parity symbols are communicated to a servo channel of the tape storage system to be recorded onto a servo track of the magnetic tape. Adding redundancy to LPOS words provides the capability of correcting multiple bit errors without increasing the LPOS word length.
摘要翻译：纵向位置（LPOS）字L（n）被编码具有纠错能力。 LPOS字包括由（式I）计算的多个LPOS符号L0（n）至Lk（n），并表示磁带相对于磁带存储系统中磁头的纵向位置。响应于多个LPOS符号中的至少一个确定字类型，并且响应于所确定的字类型，从多个LPOS符号L（n）生成至少一个格式化符号F（n）。从格式化符号F（n）生成至少一个奇偶校验符号P（n）。格式化和奇偶校验符号被传送到磁带存储系统的伺服通道以被记录在磁带的伺服轨道上。为LPOS字添加冗余提供了在不增加LPOS字长的情况下校正多位错误的能力。

5. 发明申请

WO2009115386A1 ERROR CORRECTION CODING OF LONGITUDINAL POSITION INFORMATION 审中-公开
标题翻译：长期位置信息的错误校正编码
公开(公告)号：WO2009115386A1
公开(公告)日：2009-09-24
申请号：PCT/EP2009/051894
申请日：2009-02-18
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , ELEFTHERIOU, Evangelos , HUTCHINS, Robert, Allen , CIDECIYAN, Roy, Daron , CHERUBINI, Giovanni
发明人： ELEFTHERIOU, Evangelos , HUTCHINS, Robert, Allen , CIDECIYAN, Roy, Daron , CHERUBINI, Giovanni
IPC分类号： G11B20/12 , G11B20/18 , G11B5/584 , G11B15/46 , H03M13/09
CPC分类号： G11B20/1201 , G11B5/584 , G11B20/14 , G11B20/1833 , G11B20/1866 , G11B2020/1281 , G11B2020/1284 , G11B2020/1287 , G11B2020/1484 , G11B2020/1836 , G11B2220/90 , G11B2220/93 , G11B2220/95
摘要： A sequential data storage medium, comprising a sequence of plurality of servo patterns that provide lateral position information and longitudinal position information, wherein each of the plurality of servo patterns comprises a first burst comprising a first plurality of pulses, a second burst comprising a second plurality of pulses, a third burst comprising a third plurality of pulses, and a fourth burst comprising a fourth plurality of pulses. The spacings between the first plurality of pulses, in combination with the spacings between the second plurality of pulses, encode a first bit without affecting the recovery of lateral position information. The spacings between the third plurality of pulses, in combination with the spacings between the fourth plurality of pulses, encode a second bit without affecting the recovery of lateral position information. The sequence of plurality of servo patterns comprises a sequence of the first bits and a sequence of the second bits to form an error-correction codeword providing error-correction capability.
摘要翻译：一种顺序数据存储介质，包括提供横向位置信息和纵向位置信息的多个伺服模式的序列，其中所述多个伺服模式中的每一个包括包括第一多个脉冲的第一脉冲串，包括第二多个脉冲的第二脉冲串的脉冲，包括第三多个脉冲的第三脉冲串，以及包括第四多个脉冲的第四脉冲串。所述第一多个脉冲之间的间隔与所述第二多个脉冲之间的间隔相结合，对第一位进行编码，而不影响横向位置信息的恢复。第三多个脉冲之间的间隔与第四多个脉冲之间的间隔结合，对第二位进行编码，而不影响横向位置信息的恢复。多个伺服模式的序列包括第一比特的序列和第二比特的序列，以形成提供纠错能力的纠错码字。

6. 发明申请

WO2012001556A1 WEAR-LEVELING OF CELLS/PAGES/SUB-PAGES/BLOCKS OF A MEMORY 审中-公开
标题翻译：细胞/页/子页/记忆块的磨损等级
公开(公告)号：WO2012001556A1
公开(公告)日：2012-01-05
申请号：PCT/IB2011/052492
申请日：2011-06-08
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos, S. , HAAS, Robert , HU, Xiaoyu , ILIADIS, Ilias , PLETKA, Roman, A.
发明人： CIDECIYAN, Roy, Daron , ELEFTHERIOU, Evangelos, S. , HAAS, Robert , HU, Xiaoyu , ILIADIS, Ilias , PLETKA, Roman, A.
IPC分类号： G11C16/34
CPC分类号： G06F12/0246 , G06F2212/7211 , G11C16/3495
摘要： The invention is directed to a method for wear-leveling cells or pages or sub- pages or blocks of a memory such as a flash memory, the method comprising: - receiving (S10) a chunk of data to be written on a cell or page or sub-page or block of the memory; - counting (S40) in the received chunk of data the number of times a given type of binary data '0' or Ί ' is to be written; and - distributing (S50) the writing of the received chunk of data amongst cells or pages or sub-pages or blocks of the memory such as to wear-level the memory with respect to the number of the given type of binary data '0' or Ί ' counted in the chunk of data to be written.
摘要翻译：本发明涉及一种用于对诸如闪速存储器之类的存储器的单元格或页面或子页面或块进行磨损均衡的方法，所述方法包括： - 接收（S10）要写入单元或页面的数据块或子页或块的存储器; - 在接收到的数据块中计数（S40）次数给定类型的二进制数据“0”或？ “要写以及 - 分配（S50）在存储器的单元格或页面或子页面或块之间写入所接收的数据块，以便相对于给定类型的二进制数据“0”的数量对存储器进行磨损级别要么？ “在数据块中计算要写入。

7. 发明申请

WO2010078992A1 REWRITING CODEWORD OBJECTS TO MAGNETIC DATA TAPE UPON DETECTION OF AN ERROR 审中-公开
标题翻译：在检测到错误的情况下，将编码对象写入磁性数据带
公开(公告)号：WO2010078992A1
公开(公告)日：2010-07-15
申请号：PCT/EP2009/065331
申请日：2009-11-17
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , SEGER, Paul , CIDECIYAN, Roy, Daron , MITTELHOLZER, Thomas , TANAKA, Keisuke
发明人： SEGER, Paul , CIDECIYAN, Roy, Daron , MITTELHOLZER, Thomas , TANAKA, Keisuke
IPC分类号： G11B20/18
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。

8. 发明申请

WO2012072330A1 DECODING ENCODED DATA CONTAINING INTEGRATED DATA AND HEADER PROTECTION 审中-公开
标题翻译：解码包含整合数据和编码保护的编码数据
公开(公告)号：WO2012072330A1
公开(公告)日：2012-06-07
申请号：PCT/EP2011/068006
申请日：2011-10-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , TANAKA, Keisuke , CIDECIYAN, Roy, Daron , MATSUO, Hisato , MITTELHOLZER, Thomas , OHTANI, Kenji , SEGER, Paul
发明人： TANAKA, Keisuke , CIDECIYAN, Roy, Daron , MATSUO, Hisato , MITTELHOLZER, Thomas , OHTANI, Kenji , SEGER, Paul
IPC分类号： G06F11/10
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）。

9. 发明申请

WO2009004084A1 RLL ENCODING FOR LTO-5 TAPE 审中-公开
标题翻译： RLL编码LTO-5胶带
公开(公告)号：WO2009004084A1
公开(公告)日：2009-01-08
申请号：PCT/EP2008/058699
申请日：2008-07-04
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , CIDECIYAN, Roy, Daron , SEGER, Paul , TANAKA, Keisuke
发明人： CIDECIYAN, Roy, Daron , SEGER, Paul , TANAKA, Keisuke
IPC分类号： H03M5/14
CPC分类号： H03M5/145 , G11B20/1426 , G11B2220/90
摘要： Method and apparatus are provided for encoding and decoding rate-( s ( K +1))/( s ( K +1)+1) TCMTR( j,k,t,a ) codes, where s is the ECC symbol size in bits and K is the number of unencoded symbols that are interleaved with an ( s +1)-bit encoded block at the output of a rate- s /( s +1) encoder that encodes the r-th 5-bit symbol. K=m/s -1 where m=s(K +1) is the total number of bits to be encoded. Error propagation is reduced, thus allowing the ECC code to correct errors efficiently. Header error-rate is also reduced by eliminating occurrence of likely error events at the detector output. Although initially an RLL code may be designed for an ECC symbol size of s bits, the RLL encoding of the present invention may be used in conjunction with ECC schemes that utilize symbol sizes other than s bits.
摘要翻译：提供了编码和解码速率（s（K + 1））/（s（K + 1）+1）TCMTR（j，k，t，a）码的方法和装置，其中s是ECC符号大小位，K是在编码第r个5位符号的速率s /（s + 1）编码器的输出处与第（s + 1）位编码块交错的未编码符号的数量。 K = m / s-1其中m = s（K + 1）是要编码的总位数。错误传播减少，从而允许ECC代码有效地纠正错误。也可以通过消除检测器输出处可能发生的错误事件来减少报头错误率。虽然最初可以设计用于s比特的ECC符号大小的RLL码，但是本发明的RLL编码可以与利用除了s比特之外的符号大小的ECC方案结合使用。

10. 发明申请

WO2011124630A2 INTEGRATED DATA AND HEADER PROTECTION FOR TAPE DRIVES 审中-公开
标题翻译：集成数据和磁带保护用于磁带驱动
公开(公告)号：WO2011124630A2
公开(公告)日：2011-10-13
申请号：PCT/EP2011/055392
申请日：2011-04-07
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , CIDECIYAN, Roy, Daron , MATSUO, Hisato , MITTELHOLZER, Thomas , OHTANI, Kenji , SEGER, Paul , TANAKA, Keisuke
发明人： CIDECIYAN, Roy, Daron , MATSUO, Hisato , MITTELHOLZER, Thomas , OHTANI, Kenji , SEGER, Paul , TANAKA, Keisuke
IPC分类号： G11B20/18
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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