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61. 发明授权

US08000057B2 Combining information from parallel servo channels 失效
公开(公告)号：US08000057B2
公开(公告)日：2011-08-16
申请号：US12878704
申请日：2010-09-09
申请人： Nhan X. Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B21/02
CPC分类号： G11B5/584
摘要： A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted parameter estimate and for a measure of the channel reliability. A weight computation module provides first and second weight signals using the measures of channel reliability from the servo channels. An offset computation module provides first and second offset terms which are summed with the unweighted parameter estimates. Multiplying nodes receive the unweighted parameter estimates and the weight signals and outputs offset weighted parameter estimates. A summing node receives the offset weighted parameter estimates and outputs a combined offset weighted parameter estimate to a servomechanism.

62. 发明授权

US07982988B2 Combining information from parallel servo channels 失效
标题翻译：组合来自并行伺服通道的信息
公开(公告)号：US07982988B2
公开(公告)日：2011-07-19
申请号：US12400369
申请日：2009-03-09
申请人： Nhan X. Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B27/36 , G11B5/584
CPC分类号： G11B5/584
摘要： A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module servo module comprises two servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted metric and for a measure of the channel reliability. A weight computation module provides first and second weight signals using the measures of channel reliability from the servo channels. A first multiplying node receives a first unweighted metric and a first weight signal and is operable to output a first weighted metric. A second multiplying node receives a second unweighted metric and a second weight signal and outputs a second weighted metric. A summing node receives the first and second weighted metrics and outputs a combined weighted metric to an LPOS word decoder.
摘要翻译：加权组合方案利用来自并行操作的两个伺服通道的信息。基于定时的伺服模块伺服模块包括分别耦合的两个伺服通道，以接收从数据磁带读取的两个数字伺服信号。两个通道都具有未加权度量的输出和通道可靠性的度量。权重计算模块使用来自伺服信道的信道可靠性的测量来提供第一和第二加权信号。第一乘法节点接收第一未加权度量和第一加权信号，并且可操作以输出第一加权度量。第二乘法节点接收第二未加权度量和第二加权信号并输出第二加权度量。求和节点接收第一和第二加权度量，并将组合加权度量输出到LPOS字解码器。

63. 发明申请

US20100226039A1 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS 失效
公开(公告)号：US20100226039A1
公开(公告)日：2010-09-09
申请号：US12400420
申请日：2009-03-09
申请人： Nhan Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted parameter estimate and for a measure of the channel reliability. A weight computation module provides first and second weight signals using the measures of channel reliability from the servo channels. An offset computation module provides first and second offset terms which are summed with the unweighted parameter estimates. Multiplying nodes receive the unweighted parameter estimates and the weight signals and outputs offset weighted parameter estimates. A summing node receives the offset weighted parameter estimates and outputs a combined offset weighted parameter estimate to a servomechanism.

64. 发明授权

US09190076B2 Data format using an efficient reverse concatenated modulation code for magnetic tape recording 有权
标题翻译：数据格式使用有效的反向级联调制码进行磁带记录
公开(公告)号：US09190076B2
公开(公告)日：2015-11-17
申请号：US13483004
申请日：2012-05-29
申请人： Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Sedat Oelcer
发明人： Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Sedat Oelcer
IPC分类号： H03M13/13 , G11B5/008 , G11B20/18 , H03M13/29 , H03M5/14 , H03M13/11 , H03M13/15
CPC分类号： G11B5/00813 , G11B20/1833 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/90 , H03M5/145 , H03M13/1102 , H03M13/13 , H03M13/1515 , H03M13/2906
摘要： In one embodiment, a tape drive system includes a write channel for writing data to a magnetic tape, the write channel utilizing a rate-(232/234) reverse concatenated modulation code. The write channel includes logic adapted for receiving a data stream comprising one or more data sets, logic adapted for separating each data set into a plurality of sub data sets, logic adapted for encoding each sub data set with a C2 encoding, logic adapted for encoding each C2-encoded sub data set with a modulation code, logic adapted for encoding each modulated sub data set with a C1 encoding, and logic adapted for simultaneously writing the encoded modulated sub data sets to data tracks of the magnetic tape. Other systems for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code are described according to various other embodiments.
摘要翻译：在一个实施例中，磁带驱动器系统包括用于将数据写入磁带的写入通道，该写入通道利用速率（232/234）反向级联调制码。写通道包括适于接收包括一个或多个数据组的数据流的逻辑，适用于将每个数据集分成多个子数据集的逻辑，适用于使用C2编码对每个子数据集进行编码的逻辑，适用于编码的逻辑具有调制码的每个C2编码的子数据集，适用于用C1编码对每个经调制的子数据集进行编码的逻辑，以及用于将编码的已调制子数据集同时写入到磁带的数据轨道的逻辑。根据各种其他实施例，描述使用速率（232/234）反向级联调制码将数据写入磁带的其它系统。

65. 发明授权

US08996958B2 Method, device and computer program product for decoding a codeword 有权
标题翻译：用于解码码字的方法，设备和计算机程序产品
公开(公告)号：US08996958B2
公开(公告)日：2015-03-31
申请号：US13574368
申请日：2011-01-27
申请人： Roy D. Cideciyan , Ilias Iliadis , Roman Pletka
发明人： Roy D. Cideciyan , Ilias Iliadis , Roman Pletka
IPC分类号： G11C29/00 , G06F11/10
CPC分类号： G06F11/1072
摘要： A method and apparatus for decoding a codeword received from a flash memory. The flash memory comprises multi-level flash memory cells, wherein each multi-level flash memory cell stores one symbol of the codeword. An ECC decoder is arranged for decoding the codeword into a decoded codeword and correcting a maximum number of errors. The method determines the number of errors in the codeword. If the number of errors is more than the maximum number of errors that the ECC decoder can correct, the method generates modified codewords, calculates a corrective effect of a modified codeword, and determines a decoded codeword based on the corrective effect.
摘要翻译：一种用于对从闪速存储器接收的码字进行解码的方法和装置。闪速存储器包括多级闪存单元，其中每个多级闪存单元存储码字的一个符号。 ECC解码器被布置为用于将码字解码为解码码字并校正最大数量的错误。该方法确定码字中的错误数。如果错误数量大于ECC解码器可以纠正的最大错误数量，则该方法生成修改后的码字，计算修正码字的校正效果，并根据校正效果确定解码码字。

66. 发明申请

US20140036383A1 WRITING DATA TO TAPE STORAGE MEDIUM 有权
标题翻译：将数据写入带状存储介质
公开(公告)号：US20140036383A1
公开(公告)日：2014-02-06
申请号：US14110983
申请日：2012-04-24
申请人： Roy D. Cideciyan , Simeon Furrer
发明人： Roy D. Cideciyan , Simeon Furrer
IPC分类号： G11B5/008
CPC分类号： G11B5/00813
摘要： A method for writing data to a tape storage medium includes: writing first user data to a first physical region (11) of the tape storage medium (1) in a first write mode, writing second user data to a second physical region (12) of the tape storage medium (1) in a second write mode, wherein the second write mode differs from the first write mode. An apparatus for writing data to a tape storage medium, a tape storage medium, a tape cartridge are also provided.
摘要翻译：将数据写入磁带存储介质的方法包括：以第一写入模式将第一用户数据写入磁带存储介质（1）的第一物理区域（11），将第二用户数据写入第二物理区域（12）在第二写入模式下，磁带存储介质（1）的第二写入模式与第一写入模式不同。还提供了一种用于将数据写入磁带存储介质的装置，磁带存储介质，磁带盒。

67. 发明申请

US20130326306A1 PARTIAL REVERSE CONCATENATION FOR DATA STORAGE DEVICES USING COMPOSITE CODES 有权
标题翻译：使用复合代码的数据存储设备的部分反向定义
公开(公告)号：US20130326306A1
公开(公告)日：2013-12-05
申请号：US13483015
申请日：2012-05-29
申请人： Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Sedat Oelcer
发明人： Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Sedat Oelcer
IPC分类号： H03M13/29 , G06F11/10 , H03M13/07
CPC分类号： H03M13/2906 , G06F3/0619 , G06F3/064 , G06F3/0674 , G06F3/0677 , G06F3/0682 , G06F11/1076 , G11B20/1426 , G11B20/18 , G11B20/1833 , G11B2020/1836 , G11B2020/1853 , G11B2220/2516 , G11B2220/2537 , G11B2220/956 , H03M13/1102 , H03M13/1515 , H03M13/2909 , H03M13/6325 , H03M13/6343
摘要： In one embodiment, a data storage system includes a write channel for writing data to a storage medium, the write channel configured to utilize a partial reverse concatenated modulation code. The write channel includes logic adapted for encoding data sets using a C2 encoding scheme, logic adapted for adding a header to each subunit of the data sets, logic adapted for encoding the headers of the data sets with a first modulation encoding scheme, logic adapted for encoding data portions of the data sets with a second modulation encoding scheme, logic adapted for encoding portions of the one or more C2-encoded data sets using a C1 encoding scheme, logic adapted for combining the C1-encoded portions with the modulation-encoded headers of the C2-encoded data sets using a multiplexer, and logic adapted for writing the one or more combined C1- and C2-encoded data sets to data tracks.
摘要翻译：在一个实施例中，数据存储系统包括用于将数据写入存储介质的写通道，该写通道被配置为利用部分反向级联调制码。所述写通道包括适于使用C2编码方案对数据集进行编码的逻辑，适用于将数据组的每个子单元加上标题的逻辑，适用于利用第一调制编码方案对所述数据组的报头进行编码的逻辑，使用第二调制编码方案对数据集的数据部分进行编码，适用于使用C1编码方案对一个或多个C2编码数据集的部分进行编码的逻辑，适用于将C1编码部分与调制编码报头使用多路复用器的C2编码数据集，以及适于将一个或多个组合的C 1和C 2编码数据集写入数据磁道的逻辑。

68. 发明授权

US08458568B2 Systems and methods for memory devices 失效
标题翻译：存储器件的系统和方法
公开(公告)号：US08458568B2
公开(公告)日：2013-06-04
申请号：US12889692
申请日：2010-09-24
申请人： Roy D. Cideciyan , Xiao-Yu Hu
发明人： Roy D. Cideciyan , Xiao-Yu Hu
IPC分类号： H03M13/00 , G11C29/00 , H04L1/00 , H03M13/35 , G06F11/10
CPC分类号： H04L1/0009 , G06F11/1048 , G06F11/1068 , G06F12/0246 , G06F2212/401 , G06F2212/403 , G06F2212/7202 , G06F2212/7207 , G11C7/1006 , G11C2029/0411 , G11C2207/102 , H03M13/35 , H04L1/0057
摘要： A method for writing data to a memory array includes receiving a write request including data from a processor, compressing the data, assigning a page strength to the compressed data, the page strength defined by a compression ratio used to compress the data, generating a parity data block associated with the compressed data, and saving the compressed data and the parity data block in a page of the memory array, the page of the memory array having a page strength corresponding to the assigned page strength of the compressed data.
摘要翻译：一种将数据写入存储器阵列的方法包括接收包括来自处理器的数据的写入请求，压缩数据，分配压缩数据的页面强度，由用于压缩数据的压缩比定义的页面强度，产生奇偶性与压缩数据相关联的数据块，以及将压缩数据和奇偶校验数据块保存在存储器阵列的页面中，存储器阵列的页面具有与所分配的压缩数据的页面强度对应的页面强度。

69. 发明授权

US08259405B2 Rewriting codeword objects to magnetic data tape upon detection of an error 有权
标题翻译：检测到错误时将码字对象重写到磁数据磁带
公开(公告)号：US08259405B2
公开(公告)日：2012-09-04
申请号：US12351756
申请日：2009-01-09
申请人： Roy D. Cideciyan , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
发明人： Roy D. Cideciyan , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
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。

70. 发明申请

US20120144271A1 DECODING ENCODED DATA CONTAINING INTEGRATED DATA AND HEADER PROTECTION 失效
标题翻译：解码包含一体化数据和编码保护的编码数据
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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