专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20130326305A1 DATA FORMAT USING AN EFFICIENT REVERSE CONCATENATED MODULATION CODE FOR MAGNETIC TAPE RECORDING 有权
标题翻译：使用有效的反向调整码进行磁带记录的数据格式
公开(公告)号：US20130326305A1
公开(公告)日：2013-12-05
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： H03M13/00
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。

72. 发明申请

US20130013974A1 DATA ENCODING IN SOLID STATE STORAGE DEVICES 有权
标题翻译：数据编码在固态存储设备中
公开(公告)号：US20130013974A1
公开(公告)日：2013-01-10
申请号：US13582768
申请日：2011-03-23
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Thomas Mittelholzer
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Thomas Mittelholzer
IPC分类号： H03M13/29
CPC分类号： H03M13/2906 , G06F11/1072 , H03M13/152 , H03M13/2942
摘要： Methods and apparatus are provided for encoding input data for recording in s-level storage of a solid state storage device, where s f 2. Input data words are encoded in groups of M input data words in accordance with first and second BCH codes to produce, for each group, a set of M first codewords of the first BCH code. The set of M first codewords is produced such that at least one predetermined linear combination of the M first codewords produces a second codeword of the second BCH code, this second BCH code being a sub-code of the first BCH code. The sets of M first codewords are then recorded in the s-level storage. If each of the first and second codewords comprises N q-ary symbols where q=pk, k is a positive integer and p is a prime number, the q-ary code alphabet can be matched to the s-ary storage by ensuring that q and s are uth and vth powers respectively of a common base r, where u and v are positive integers and k f u, whereby p(k/u)v=s.
摘要翻译：提供了用于编码用于在固态存储设备的s级存储中记录的输入数据的方法和装置，其中sf 2.根据第一和第二BCH码，输入数据字以M个输入数据字的组进行编码，对于每个组，第一BCH码的一组M个第一码字。产生M个第一码字集合，使得M个第一码字的至少一个预定线性组合产生第二BCH码的第二码字，该第二BCH码是第一BCH码的子码。然后将M组第一码字集合记录在s级存储器中。如果第一和第二码字中的每一个包括N q个符号，其中q = pk，k是正整数，p是质数，则可以通过确保q- 和s分别是公共基础r的uth和vth权力，其中u和v是正整数和kfu，由此p（k / u）v = s。

73. 发明申请

US20120307393A1 TRACK-DEPENDENT DATA RANDOMIZATION MITIGATING FALSE VFO DETECTION 有权
标题翻译：跟踪依赖的数据随机化，减轻虚拟VFO检测
公开(公告)号：US20120307393A1
公开(公告)日：2012-12-06
申请号：US13149905
申请日：2011-06-01
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： G11B5/09
CPC分类号： G11B5/0083 , G11B5/09 , G11B20/10009 , G11B20/10222 , G11B20/10259 , G11B20/1833 , G11B2220/956 , H03M13/09 , H03M13/27 , H03M13/2909 , H03M13/2945 , H03M13/6561 , H04L1/0042
摘要： A method for randomizing data to mitigate false VFO detection is described. In one embodiment, such a method includes simultaneously receiving multiple input data streams. Each input data stream is associated with a different track on a magnetic tape medium. The input data streams are simultaneously scrambled to produce multiple randomized data streams. The input data streams are scrambled such that different bit patterns are produced in the randomized data streams even where corresponding bit patterns in the input data streams are identical. The randomized data streams are simultaneously written to their associated data tracks on the magnetic tape medium. A corresponding apparatus is also described.
摘要翻译：描述用于随机化数据以减轻虚假VFO检测的方法。在一个实施例中，这种方法包括同时接收多个输入数据流。每个输入数据流与磁带介质上的不同轨道相关联。输入数据流被同时加扰以产生多个随机数据流。输入数据流被加扰，使得在随机数据流中产生不同的位模式，即使输入数据流中相应的位模式是相同的。随机数据流被同时写入到磁带介质上的相关联的数据轨道上。还描述了相应的装置。

74. 发明申请

US20120260150A1 DATA MANAGEMENT IN SOLID STATE STORAGE SYSTEMS 有权
标题翻译：固态存储系统中的数据管理
公开(公告)号：US20120260150A1
公开(公告)日：2012-10-11
申请号：US13516627
申请日：2010-12-16
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Robert Haas , Xiao-Yu Hu , Ilias Iliadas , Thomas Mittelholzer
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Robert Haas , Xiao-Yu Hu , Ilias Iliadas , Thomas Mittelholzer
IPC分类号： G11C29/04 , G06F11/16
CPC分类号： G06F11/1008 , G06F11/1012 , G06F11/1068 , G06F11/108
摘要： Methods and apparatus are provided for controlling data management operations including storage of data in solid state storage of a solid state storage system. Input data is stored in successive groups of data write locations in the solid state storage. Each group comprises a set of write locations in each of a plurality of logical subdivisions of the solid state storage. The input data to be stored in each group is encoded in accordance with first and second linear error correction codes. The encoding is performed by constructing from the input data to be stored in each group a logical array of rows and columns of data symbols. The rows and columns are respectively encoded in accordance with the first and second linear error correction codes to produce an encoded array in which all rows correspond to respective first codewords and columns correspond to respective second codewords.
摘要翻译：提供了用于控制数据管理操作的方法和装置，包括固态存储系统的固态存储中的数据的存储。输入数据存储在固态存储器中的连续的数据写入位置组中。每个组包括在固态存储器的多个逻辑子部分的每一个中的一组写入位置。要存储在每个组中的输入数据根据第一和第二线性纠错码进行编码。通过从输入数据中构成数据符号的行和列的逻辑阵列，来构成编码。行和列分别根据第一和第二线性纠错码编码以产生编码阵列，其中所有行对应于相应的第一码字和列对应于相应的第二码字。

75. 发明申请

US20120210194A1 INTEGRATED DATA AND HEADER PROTECTION FOR TAPE DRIVES 有权
标题翻译：集成数据和磁带保护用于磁带驱动
公开(公告)号：US20120210194A1
公开(公告)日：2012-08-16
申请号：US13451233
申请日：2012-04-19
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： H03M13/05 , G06F11/10
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。

76. 发明授权

US08185803B2 Apparatus for providing error correction capability to longitudinal position data 有权
公开(公告)号：US08185803B2
公开(公告)日：2012-05-22
申请号：US12141962
申请日：2008-06-19
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
IPC分类号： H03M13/00
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.

77. 发明授权

US08112696B2 Apparatus for providing error correction capability to longitudinal position data 有权
标题翻译：用于向纵向位置数据提供纠错能力的装置
公开(公告)号：US08112696B2
公开(公告)日：2012-02-07
申请号：US12141960
申请日：2008-06-19
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Glen A. Jaquette , Paul J. Seger
IPC分类号： H03M13/00
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。

78. 发明授权

US07864487B2 Head design for writing servo patterns on magnetic tape 有权
标题翻译：在磁带上写入伺服模式的头设计
公开(公告)号：US07864487B2
公开(公告)日：2011-01-04
申请号：US12118251
申请日：2008-05-09
申请人： Giovanni Cherubini , Roy D. Cideciyan , Evangelos S. Eleftheriou , Jens Jelitto , Mark A. Lantz
发明人： Giovanni Cherubini , Roy D. Cideciyan , Evangelos S. Eleftheriou , Jens Jelitto , Mark A. Lantz
IPC分类号： G11B5/584 , G11B5/265
CPC分类号： G11B5/584
摘要： A servo write head is provided and is configured to simultaneously write at least two servo patterns in respective servo bands on linear magnetic tape. Centerlines of the servo patterns are substantially uniformly spaced in the lateral direction. In addition, the servo patterns of all adjacent respective servo bands are displaced relative to each other in a longitudinal direction by an amount that is related to a length of a servo frame and a type of the servo patterns.
摘要翻译：提供了伺服写入头，并被配置为在线性磁带上的相应伺服带中同时写入至少两个伺服模式。伺服图案的中心线在横向方向上基本上均匀间隔开。此外，所有相邻的各个伺服带的伺服模式在纵向方向上相对于伺服帧的长度和伺服模式的类型相关的量而移位。

79. 发明申请

US20100226037A1 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS 失效
标题翻译：从并行伺服通道组合信息
公开(公告)号：US20100226037A1
公开(公告)日：2010-09-09
申请号：US12400369
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： G11B5/596 , 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。

80. 发明申请

US20100180180A1 ECC INTERLEAVING FOR MULTI-TRACK RECORDING ON MAGNETIC TAPE 有权
标题翻译：用于磁带上的多轨迹记录的ECC交互
公开(公告)号：US20100180180A1
公开(公告)日：2010-07-15
申请号：US12351738
申请日：2009-01-09
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Hisato Matsuo , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Hisato Matsuo , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
IPC分类号： H03M13/27 , G06F11/10
CPC分类号： H03M13/2909 , G11B20/1202 , G11B20/1833 , G11B20/1866 , G11B2020/1836 , G11B2020/1853 , G11B2220/93 , H03M13/15 , H03M13/1515
摘要： Conventional C2 coding and interleaving for multi-track data tape in LTO-¾ do not support recording data onto a number of concurrent tracks which is not a power of two. Higher-rate longer C2 codes, which do not degrade error rate performance, are provided. An adjustable format and interleaving scheme accommodates future tape drives in which the number of concurrent tracks is not necessarily a power of two. A data set is segmented into a plurality of unencoded subdata sets and parity bytes are generated for each row and column. The parameters of the C2 code include N2 as the least common multiple of the number of possible tracks to which codeword objects are to be written. COs are formed from N2 C1 codewords, mapped onto a logical data track according to information within headers of the CO and modulation encoded into synchronized COs which are written to the tape.
摘要翻译： LTO-¾中的多轨数据磁带的常规C2编码和交织不支持将数据记录到不是2的幂的多个并发轨道上。提供了更高速率的更长的C2代码，这不会降低错误率性能。可调格式和交错方案适应将来的磁带驱动器，其中并发轨道的数量不一定是二的幂。将数据集分割为多个未编码的子数据集，并为每行和列生成奇偶校验字节。 C2码的参数包括N2作为要写入码字对象的可能轨道数的最小公倍数。 CO由N2 C1码字形成，根据CO的头部内的信息和被编码成被写入到磁带的同步的CO的调制信号映射到逻辑数据轨道上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式