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公开(公告)号：US20150012800A1
公开(公告)日：2015-01-08
申请号：US13952415
申请日：2013-07-26
Applicant: LSI Corporation
Inventor： Shaohua Yang , George Mathew , Jefferson E. Singleton , Jongseung Park , Richard Rauschmayer
IPC: G06F11/07
CPC classification number: G11B20/1833 , G11B20/10268 , H03M13/1102 , H03M13/1515 , H03M13/2957 , H03M13/3723 , H03M13/3738 , H03M13/3746 , H03M13/3753 , H03M13/6325 , H03M13/6343
Abstract: A data processing system is disclosed including a data detector, a data decoder and an alignment detector. The data detector is operable to apply a data detection algorithm to generate detected values for a data sector. The data decoder is operable to apply a data decode algorithm to a decoder input derived from the detected values to yield decoded values. The alignment detector is operable to calculate an offset between multiple versions of the data sector by correlating the multiple versions.
Abstract translation: 公开了一种数据处理系统，包括数据检测器，数据解码器和对准检测器。 数据检测器可操作以应用数据检测算法来产生数据扇区的检测值。 数据解码器可操作以将数据解码算法应用于从检测值导出的解码器输入，以产生解码值。 对准检测器可操作以通过关联多个版本来计算数据扇区的多个版本之间的偏移。
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12.发明授权Inter-track interference mitigation in magnetic recording systems using averaged values 有权磁记录系统中使用平均值的轨道间干扰减轻公开(公告)号：US08902524B2
公开(公告)日：2014-12-02
申请号：US13834648
申请日：2013-03-15
Applicant: LSI Corporation
Inventor： Erich F. Haratsch , Ming Jin , George Mathew , Jongseung Park , Kurt J. Worrell
CPC classification number: G11B20/22 , G11B5/012 , G11B5/09 , G11B19/045 , G11B20/10009
Abstract: Hardware-based methods and apparatus are provided for inter-track interference mitigation in magnetic recording systems using averaged values. Inter-track interference (ITI) is mitigated in a magnetic recording system by obtaining ITI cancellation data; and providing the ITI cancellation data for ITI mitigation, wherein the ITI mitigation is performed in combination with an averaging procedure for one or more of ITI mitigation of averaged data and averaging of ITI mitigated data. The sector is optionally decoded using the ITI mitigated samples. Samples for one or more side track sectors can also be averaged. The averaged side track samples can be provided as ITI cancellation data for ITI mitigation. The averaging procedure optionally applies a scaling factor to each read value.
Abstract translation: 提供基于硬件的方法和装置，用于使用平均值的磁记录系统中的轨道间干扰减轻。 通过获取ITI取消数据，在磁记录系统中减轻了轨道间干扰（ITI）。 以及提供用于ITI缓解的ITI抵消数据，其中ITI缓解与对平均数据的ITI缓解和ITI缓解数据的平均中的一个或多个的平均过程相结合执行。 可选地使用ITI缓解样本来解码扇区。 也可以对一个或多个侧轨道扇区的采样进行平均。 可以将平均的侧轨样本作为ITI缓解的ITI取消数据提供。 平均过程可选地对每个读取值应用缩放因子。
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13.发明申请Systems and Methods for ADC Sample Based Inter-track Interference Compensation 有权基于ADC采样的轨道间干扰补偿的系统和方法公开(公告)号：US20140247514A1
公开(公告)日：2014-09-04
申请号：US13784448
申请日：2013-03-04
Applicant: LSI CORPORATION
Inventor： Jun Xiao , Fan Zhang , George Mathew , Erich F. Haratsch
IPC: G11B20/10
CPC classification number: G11B20/10046
Abstract: Various embodiments of the present invention provide systems and methods for mitigating inter-track interference using pre-equalized data samples.
Abstract translation: 本发明的各种实施例提供了使用预均衡数据样本来减轻轨道间干扰的系统和方法。
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公开(公告)号：US09245559B2
公开(公告)日：2016-01-26
申请号：US14263562
申请日：2014-04-28
Applicant: LSI Corporation
Inventor： George Mathew , Jongseung Park , Eui Seok Hwang
CPC classification number: G11B5/59627 , G06F3/0608 , G06F3/0644 , G06F3/0689 , G11B5/012 , G11B5/4886 , G11B5/58 , G11B20/10009 , G11B20/10046 , G11B2005/0013
Abstract: A method of mitigating an effect of track misregistration on read performance in a system comprising an array-reader includes determining an estimated off-track condition, selecting translation coefficients based on the estimated off-track condition, determining updated equalizer coefficients by applying the translation coefficients to native equalizer coefficients, and applying the updated equalizer coefficients to signals received from the array-reader to output a read signal.
Abstract translation: 一种减轻跟踪配准对包括阵列读取器的系统中的读取性能的影响的方法包括：确定估计的偏离轨迹条件，基于估计的偏离轨迹条件选择转换系数，通过应用平移系数来确定更新的均衡器系数 到原始均衡器系数，以及将更新的均衡器系数应用于从阵列读取器接收的信号，以输出读取信号。
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公开(公告)号：US09129648B2
公开(公告)日：2015-09-08
申请号：US14158739
申请日：2014-01-17
Applicant: LSI Corporation
Inventor： George Mathew , Bruce A. Wilson , Jongseung Park
CPC classification number: G11B20/10046 , G11B5/09 , G11B20/10055 , G11B20/10222 , G11B20/10268
Abstract: An apparatus for reading data includes an array of analog inputs operable to receive analog signals retrieved from a magnetic storage medium, wherein the analog inputs correspond to multiple data tracks on the magnetic storage medium, and wherein the number of analog inputs in the array of analog inputs is greater than the number of data tracks being read, at least one joint equalizer operable to filter the analog inputs to yield an equalized output for each of the data tracks being read, and at least one data detector operable to apply a detection algorithm to the equalized output from the joint equalizer to yield detected values for each of the data tracks being read.
Abstract translation: 一种用于读取数据的装置包括可操作以接收从磁存储介质检索的模拟信号的模拟输入阵列，其中所述模拟输入对应于所述磁存储介质上的多个数据磁道，并且其中所述模拟输入阵列中的模拟输入的数量 至少一个联合均衡器可操作以对模拟输入进行滤波，以产生正被读取的每个数据轨道的均衡输出，以及至少一个数据检测器，可操作以将检测算法应用于 来自联合均衡器的均衡输出，以产生正被读取的每个数据轨道的检测值。
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Patent Agency Ranking
16.发明授权Skew-tolerant reader set selection in array-reader based magnetic recording 有权基于阵列阅读器的磁记录中的容错读取器组选择公开(公告)号：US09093119B1
公开(公告)日：2015-07-28
申请号：US14445979
申请日：2014-07-29
Applicant: LSI Corporation
Inventor： Eui Seok Hwang , George Mathew
CPC classification number: G11B20/20 , G11B20/10009
Abstract: A method for enhancing read performance in an ARMR system includes: obtaining CTS information for a plurality of readers in a multi-reader head of the ARMR system, the CTS information defining a relationship between skew angle and CTS between respective combinations of subsets of the readers; determining, as a function of the CTS information, a given one of the combinations of subsets of the readers which provides enhanced read performance among a total number of combinations of subsets of the readers for each of a plurality of skew angles; and selecting, for subsequent processing by a read channel in the ARMR system, the given one of the combinations of subsets of the readers determined to provide enhanced read performance for a given one of the skew angles corresponding to a zone in which the multi-reader head is operating.
Abstract translation: 一种用于增强ARMR系统中的读取性能的方法包括：在ARMR系统的多读取器头部中获得多个读取器的CTS信息，CTS信息定义倾斜角度与读取器子集的各组合之间的CTS之间的关系 ; 根据所述CTS信息，确定所述读取器子集的组合中的给定一个，其在多个倾斜角中的每一个的读取器的子集合的总数中提供增强的读取性能; 并且为了随后通过ARMR系统中的读取通道进行的处理，选择读取器的子集的组合中的给定的一个，以确定为对应于多个读取器的区域的给定的一个倾斜角度提供增强的读取性能 头正在运作。
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17.发明申请公开(公告)号：US20150170676A1
公开(公告)日：2015-06-18
申请号：US14172869
申请日：2014-02-04
Applicant: LSI Corporation
Inventor： Eui Seok Hwang , George Mathew , Jongseung Park
IPC: G11B5/09
CPC classification number: G11B5/3954 , G11B5/3958 , G11B5/3961 , G11B5/3964 , G11B5/4886 , G11B5/4976
Abstract: A method of reading data in a multi-reader two-dimensional magnetic recording system includes determining a position of a multi-reader head, selecting a mode for reading the data of a magnetic recording medium as a function of the position of the multi-reader head, and reading the data of the magnetic recording medium in the selected mode.
Abstract translation: 一种在多读取器二维磁记录系统中读取数据的方法包括：确定多读取器头的位置，选择用于读取磁记录介质的数据的模式作为多读取器的位置的函数 并且以所选择的模式读取磁记录介质的数据。
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18.发明申请公开(公告)号：US20150070796A1
公开(公告)日：2015-03-12
申请号：US14031990
申请日：2013-09-19
Applicant: LSI Corporation
Inventor： George Mathew , Nayak Ratnakar Aravind , Suharli Tedja
IPC: G11B20/10
CPC classification number: G11B20/10046 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B20/10222 , G11B20/10527
Abstract: A magnetic recording system includes an array of analog inputs operable to receive an array of analog signals retrieved from a magnetic storage medium, where one of the array of analog signals corresponds with a reference channel, a timing recovery circuit operable to generate a clock signal based on the analog signal for the reference channel, a number of analog to digital converters each operable to sample one of the array of analog signals based on the clock signal to yield a number of digital channels, and a joint equalizer operable to filter the digital channels to yield an equalized output.
Abstract translation: 磁记录系统包括一组模拟输入，可操作用于接收从磁存储介质检索的模拟信号阵列，其中模拟信号阵列之一对应于参考通道，定时恢复电路可操作以产生基于时钟信号 对于参考通道的模拟信号，多个模数转换器，每个转换器可操作以基于时钟信号对模拟信号阵列中的一个进行采样以产生多个数字通道;以及联合均衡器，可操作以对数字通道进行滤波 以产生均衡的输出。
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公开(公告)号：US08848776B1
公开(公告)日：2014-09-30
申请号：US13853695
申请日：2013-03-29
Applicant: LSI Corporation
Inventor： Bruce Wilson , George Mathew , Jongseung Park
CPC classification number: G11B20/10046 , H04L25/03038
Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for equalizing a data signal.
Abstract translation: 实施例涉及用于数据处理的系统和方法，并且更具体地涉及用于均衡数据信号的系统和方法。
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20.发明申请Systems and Methods for Signal Reduction Based Data Processor Marginalization 审中-公开基于信号减少的数据处理器边缘化系统与方法公开(公告)号：US20140250352A1
公开(公告)日：2014-09-04
申请号：US13784369
申请日：2013-03-04
Applicant: LSI CORPORATION
Inventor： Jun Xiao , Fan Zhang , George Mathew
CPC classification number: H03H17/06 , G11B20/10009 , H03M13/2957 , H03M13/6343
Abstract: Systems, methods, devices, circuits for data processing, and more particularly to data processing including operational marginalization capability, and/or operational improvement capability.
Abstract translation: 用于数据处理的系统，方法，设备，电路，更具体地涉及包括操作边缘化能力和/或操作改进能力的数据处理。
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