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1. 发明申请

US20150187384A1 TWO-DIMENSIONAL MAGNETIC RECORDING READER OFFSET ESTIMATION 有权
标题翻译：二维磁记录读数偏差估计
公开(公告)号：US20150187384A1
公开(公告)日：2015-07-02
申请号：US14180329
申请日：2014-02-13
申请人： LSI Corporation
发明人： Xiufeng Song , Eui Seok Hwang , George Mathew
IPC分类号： G11B20/10
CPC分类号： G11B20/10046 , G11B20/10037 , G11B20/10388
摘要： A method for enhancing read performance in a multi-reader two-dimensional magnetic recording system comprising first and second readers includes: receiving first and second analog read signals from the first and second readers, respectively; sampling the first and second analog read signals to generate first and second sampled signals, respectively, each of the first and second sampled signals comprising an integer component, indicative of a value of a corresponding one of the first and second analog read signals, respectively, at an integer multiple of a corresponding sampling period associated therewith, and/or a fractional component, indicative of a value of the corresponding one of the first and second analog read signals, respectively, at an arbitrary point in time between integer multiples of the corresponding sampling period; and combining the integer and/or fractional components of the respective first and second sampled signals to thereby generate a reader offset estimation signal.
摘要翻译：一种用于在包括第一和第二读取器的多读取器二维磁记录系统中提高读取性能的方法，包括：分别从第一和第二读取器接收第一和第二模拟读取信号; 对第一和第二模拟读取信号进行采样以分别产生第一和第二采样信号，第一和第二采样信号中的每一个分别包括表示第一和第二模拟读取信号中对应的一个的值的整数分量，在与其相关联的相应采样周期的整数倍和/或分数分量中，分别表示在对应的第一和第二模拟读取信号的整数倍之间的任意时间点的相应一个的值抽样期以及组合相应的第一和第二采样信号的整数和/或分数分量，从而产生读取器偏移估计信号。

2. 发明授权

US08929011B1 Sync mark system for two dimensional magnetic recording 有权
标题翻译：用于二维磁记录的同步标记系统
公开(公告)号：US08929011B1
公开(公告)日：2015-01-06
申请号：US14055886
申请日：2013-10-17
申请人： LSI Corporation
发明人： Xiufeng Song , Eui Seok Hwang , George Mathew
IPC分类号： G11B20/10 , G11B27/32 , G11B20/14
CPC分类号： G11B20/10222 , G11B20/14 , G11B27/3027 , G11B27/32
摘要： A data processing system includes an analog to digital converter operable to sample an analog signal obtained from a magnetic storage medium to yield digital samples, and a sync mark detector operable to search for a particular one of a number of sync marks in the digital samples. Each of the data tracks on the magnetic storage medium is associated with one of the sync marks. The sync mark on each of the data tracks has a different pattern than the sync marks on neighboring tracks.
摘要翻译：数据处理系统包括模数转换器，其可操作以对从磁存储介质获得的模拟信号进行采样以产生数字样本;以及同步标记检测器，其可操作以搜索数字样本中的多个同步标记中的特定一个。磁存储介质上的每个数据轨道与同步标记中的一个相关联。每个数据轨道上的同步标记具有与相邻轨道上的同步标记不同的图案。

3. 发明授权

US08861122B1 Systems and methods for sync mark based read offset detection 有权
标题翻译：基于同步标记的读取偏移检测的系统和方法
公开(公告)号：US08861122B1
公开(公告)日：2014-10-14
申请号：US14108282
申请日：2013-12-16
申请人： LSI Corporation
发明人： Eui Seok Hwang , Richard Rauschmayer
IPC分类号： G11B5/596
CPC分类号： G11B5/59616 , G11B5/59627
摘要： A data processing system includes a cross-correlation calculator operable to calculate cross-correlations between an input signal and each of three different sync patterns associated with a target track and neighboring tracks, a detector operable to select a largest of the cross-correlations, a threshold comparator operable to compare the cross-correlations with a threshold to determine a direction of any position error of a read head, and a position error estimator operable to estimate a position error of the read head based at least in part on the cross-correlations.
摘要翻译：数据处理系统包括互相关计算器，其可操作以计算输入信号与与目标轨道和相邻轨道相关联的三个不同同步模式中的每一个之间的互相关，可操作以选择最大的交叉相关的检测器阈值比较器，其可操作以将交叉相关与阈值进行比较，以确定读取头的任何位置误差的方向;以及位置误差估计器，其可操作以至少部分地基于互相关来估计读取头的位置误差。

4. 发明授权

US09305595B2 Reader separation dependent linear and track density push for array reader based magnetic recording 有权
标题翻译：读取器分离相关的线性和轨道密度推动阵列读取器的磁记录
公开(公告)号：US09305595B2
公开(公告)日：2016-04-05
申请号：US14225409
申请日：2014-03-25
申请人： LSI Corporation
发明人： Eui Seok Hwang , George Mathew
IPC分类号： G11B27/36 , G11B21/02 , G11B20/12 , G11B20/10
CPC分类号： G11B20/1217 , G11B20/10009 , G11B27/36
摘要： A method of operating a multi-reader two-dimensional magnetic recording system includes determining a position of a multi-reader head of the multi-reader two-dimensional magnetic recording system, determining an areal density push according to the position of the multi-reader head, and performing an operation to read data from or write data to a magnetic recording medium according to the areal density push.
摘要翻译：操作多读取器二维磁记录系统的方法包括确定多读取器二维磁记录系统的多读取头的位置，根据多读取器的位置确定面密度推送并且根据面密度推动执行从磁记录介质读取数据或写入数据的操作。

5. 发明申请

US20150221333A1 READER SEPARATION DEPENDENT LINEAR AND TRACK DENSITY PUSH FOR ARRAY READER BASED MAGNETIC RECORDING 有权
标题翻译：读取分离依赖线性和跟踪密度推送基于阵列读取器的磁记录
公开(公告)号：US20150221333A1
公开(公告)日：2015-08-06
申请号：US14225409
申请日：2014-03-25
申请人： LSI Corporation
发明人： Eui Seok Hwang , George Mathew
IPC分类号： G11B20/10
CPC分类号： G11B20/1217 , G11B20/10009 , G11B27/36
摘要： A method of operating a multi-reader two-dimensional magnetic recording system includes determining a position of a multi-reader head of the multi-reader two-dimensional magnetic recording system, determining an areal density push according to the position of the multi-reader head, and performing an operation to read data from or write data to a magnetic recording medium according to the areal density push.
摘要翻译：操作多读取器二维磁记录系统的方法包括确定多读取器二维磁记录系统的多读取头的位置，根据多读取器的位置确定面密度推送并且根据面密度推动执行从磁记录介质读取数据或写入数据的操作。

6. 发明申请

US20160035384A1 SKEW-TOLERANT MULTIPLE-READER ARRAY IN ARRAY-READER BASED MAGNETIC RECORDING 有权
标题翻译：基于磁盘读取器的耐读多读取器阵列
公开(公告)号：US20160035384A1
公开(公告)日：2016-02-04
申请号：US14446012
申请日：2014-07-29
申请人： LSI Corporation
发明人： Eui Seok Hwang , George Mathew
IPC分类号： G11B20/10 , G11B5/56
CPC分类号： G11B20/10388 , G11B5/3958 , G11B5/3964 , G11B5/56 , G11B20/10037 , G11B20/10046
摘要： 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 subset of the readers which provides enhanced read performance among the readers for each of a plurality of skew angles; assigning a weight value to each of a plurality of read signals generated by a corresponding one of the readers for each of the skew angles, the weight value being indicative of a performance of the corresponding one of the readers relative to one another; and decoding information read from at least one target track of a magnetic storage medium being read as a function of the read signals and corresponding weight values.
摘要翻译：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的子集，其为所述读取器中的多个倾斜角中的每一个提供增强的读取性能; 为每个所述倾斜角度的每个所述读取器生成的多个读取信号中的每一个分配权重值，所述权重值指示所述相应读取器之一相对于彼此的性能; 以及根据读取的信号和对应的权重值来读取从磁性存储介质的至少一个目标轨道读取的解码信息。

7. 发明申请

US20150279415A1 Systems and Methods for Skew Tolerant Multi-Head Data Processing 有权
标题翻译：用于偏斜多头数据处理的系统和方法
公开(公告)号：US20150279415A1
公开(公告)日：2015-10-01
申请号：US14230120
申请日：2014-03-31
申请人： LSI Corporation
发明人： Eui Seok Hwang
IPC分类号： G11B20/10 , G11B5/48
CPC分类号： G11B20/10046 , G11B5/012 , G11B5/4886 , G11B5/4976 , G11B5/5539 , G11B5/59627 , G11B20/10212
摘要： Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for processing skew tolerant processing of data derived from multiple read heads.
摘要翻译：用于数据处理的系统，方法，设备，电路，更具体地涉及用于处理从多个读取头导出的数据的偏斜容限处理的系统和方法。

8. 发明授权

US09147429B1 Systems and methods for skew tolerant multi-head data processing 有权
标题翻译：用于偏斜容限多头数据处理的系统和方法
公开(公告)号：US09147429B1
公开(公告)日：2015-09-29
申请号：US14230120
申请日：2014-03-31
申请人： LSI Corporation
发明人： Eui Seok Hwang
IPC分类号： G11B20/10 , G11B5/48 , G11B5/596 , G11B5/012
CPC分类号： G11B20/10046 , G11B5/012 , G11B5/4886 , G11B5/4976 , G11B5/5539 , G11B5/59627 , G11B20/10212
摘要： Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for processing skew tolerant processing of data derived from multiple read heads.
摘要翻译：用于数据处理的系统，方法，设备，电路，更具体地涉及用于处理从多个读取头导出的数据的偏斜容限处理的系统和方法。

9. 发明授权

US09129650B2 Array-reader based magnetic recording systems with frequency division multiplexing 有权
标题翻译：基于阵列读取器的磁记录系统，具有频分复用
公开(公告)号：US09129650B2
公开(公告)日：2015-09-08
申请号：US14021811
申请日：2013-09-09
申请人： LSI Corporation
发明人： George Mathew , Bruce Wilson , Suharli Tedja , Eui Seok Hwang
IPC分类号： G11B20/06 , G11B5/09 , G11B5/035 , G11B5/02 , G11B20/10
CPC分类号： G11B20/10268 , G11B20/10009 , G11B20/10046
摘要： A magnetic recording system includes an array of analog inputs operable to receive analog signals retrieved from a magnetic storage medium, a modulator operable to combine the analog signals to yield a frequency division multiplexed signal, a demodulator operable to yield a plurality of demodulated signals from the frequency division multiplexed signal corresponding to each channel of the array, and a joint equalizer operable to filter the plurality of demodulated signals to yield an equalized output.
摘要翻译：磁记录系统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，可操作以组合模拟信号以产生频分多路复用信号的调制器，解调器，可操作以产生来自对应于阵列的每个通道的频分多路复用信号，以及联合均衡器，可操作以对多个解调信号进行滤波以产生均衡的输出。

10. 发明授权

US08970976B1 Systems and methods for data dependent inter-track interference cancellation 有权
标题翻译：用于数据相关的轨道间干扰消除的系统和方法
公开(公告)号：US08970976B1
公开(公告)日：2015-03-03
申请号：US14062808
申请日：2013-10-24
申请人： LSI Corporation
发明人： Eui Seok Hwang , Jongseung Park , Ivana Djurdjevic , Richard Rauschmayer
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10268 , G11B20/10009 , G11B20/10046
摘要： Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for reducing inter-track interference in relation to processing data retrieved from a storage medium.
摘要翻译：用于数据处理的系统，方法，设备，电路，更具体地涉及用于减少与从存储介质检索的处理数据相关的轨道间干扰的系统和方法。

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