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51. 发明授权

US09042045B1 Disk drive adjusting a defect threshold when scanning for defective sectors 有权
标题翻译：磁盘驱动器在扫描缺陷扇区时调整缺陷阈值
公开(公告)号：US09042045B1
公开(公告)日：2015-05-26
申请号：US11933662
申请日：2007-11-01
申请人： Dean V. Dang , Kek Ming Chua , King S. Goh , Prakash Balasubramaniam , Ming Jin
发明人： Dean V. Dang , Kek Ming Chua , King S. Goh , Prakash Balasubramaniam , Ming Jin
IPC分类号： G11B27/36 , G11B5/09 , G11B5/596 , G11B20/18 , G11B20/12
CPC分类号： G11B20/1816 , G11B20/1883 , G11B2020/1282 , G11B2020/183
摘要： A disk drive is disclosed including a disk having a plurality of sectors, and a head actuated over the disk. A defect threshold is initialized, and a first sector is read to generate a first read signal. The first read signal is processed to detect a defect in the first sector relative to the defect threshold. After detecting the defect, the defect threshold is adjusted and the first sector is reread to generate a second read signal. The second read signal is processed to detect the defect in the first sector relative to the adjusted defect threshold.
摘要翻译：公开了一种磁盘驱动器，其包括具有多个扇区的盘，以及在盘上驱动的磁头。初始化缺陷阈值，并且读取第一扇区以产生第一读取信号。处理第一读取信号以相对于缺陷阈值检测第一扇区中的缺陷。在检测到缺陷之后，调整缺陷阈值并重新读取第一扇区以产生第二读取信号。处理第二读取信号以相对于调整的缺陷阈值检测第一扇区中的缺陷。

52. 发明授权

US08949702B2 Systems and methods for detector side trapping set mitigation 有权
标题翻译：检测器侧捕集装置减轻系统和方法
公开(公告)号：US08949702B2
公开(公告)日：2015-02-03
申请号：US13619907
申请日：2012-09-14
申请人： Fan Zhang , Jun Xiao , Ming Jin
发明人： Fan Zhang , Jun Xiao , Ming Jin
IPC分类号： G06F11/07
CPC分类号： H03M13/1142 , G06F11/1076 , G11B20/1833 , G11B2020/185 , H03M13/2957 , H03M13/6325 , H03M13/6343 , H03M13/658
摘要： Embodiments of the inventions are related to systems and methods for data processing, and more particularly to systems and methods for mitigating trapping sets in a data processing system.
摘要翻译：本发明的实施例涉及用于数据处理的系统和方法，更具体地涉及用于减轻数据处理系统中的陷阱集合的系统和方法。

53. 发明授权

US08879182B2 Storage media inter-track interference cancellation 有权
标题翻译：存储介质轨道间干扰消除
公开(公告)号：US08879182B2
公开(公告)日：2014-11-04
申请号：US13591937
申请日：2012-08-22
申请人： Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
发明人： Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
IPC分类号： G11B5/09 , G11B20/10 , G11B19/04 , G11B5/012 , G11B20/14 , G11B20/12 , G11B20/18
CPC分类号： G11B5/09 , G11B5/012 , G11B19/045 , G11B20/10046 , G11B20/10212 , G11B20/10462 , G11B20/1217 , G11B20/1423 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2020/183 , G11B2020/185 , G11B2020/1856 , G11B2220/2516
摘要： Described embodiments provide a method of cancelling inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A road channel reads sectors in a desired track of the storage medium. A decoder of the read channel decodes the read sectors, and if the read sectors are incorrectly recovered from the storage medium, selected sectors of a first adjacent track and a second adjacent track are read. An ITI canceller of the read channel estimates ITI in the read sectors of the desired track corresponding to the selected sectors of each adjacent track and subtracts the estimated ITI of each adjacent track from the data for the sectors of the desired track, providing updated sector data. The ITI cancelled data is replayed to the decoder, which decodes the ITI cancelled data and provides the decoded ITI cancelled data as output of the read channel.
摘要翻译：所描述的实施例提供了从存储介质的期望轨迹读取的一个或多个扇区消除轨道间干扰（ITI）的方法。道路通道读取存储介质的期望轨道中的扇区。读通道的解码器解码读扇区，并且如果从存储介质中错误地恢复读扇区，则读取第一相邻轨道和第二相邻轨道的选定扇区。读通道的ITI消除器估计对应于每个相邻磁道的所选扇区的期望磁道的读扇区中的ITI，并从期望磁道的扇区的数据中减去每个相邻磁道的估计ITI，从而提供更新的扇区数据。 ITI取消的数据被重播到解码器，解码器解码ITI取消的数据，并将解码的ITI取消数据作为读通道的输出。

54. 发明授权

US08773811B2 Systems and methods for zone servo timing gain recovery 有权
标题翻译：区域伺服定时增益恢复的系统和方法
公开(公告)号：US08773811B2
公开(公告)日：2014-07-08
申请号：US13316899
申请日：2011-12-12
申请人： Haitao Xia , Ming Jin , Dahua Qin , Shaohua Yang
发明人： Haitao Xia , Ming Jin , Dahua Qin , Shaohua Yang
IPC分类号： G11B5/54
CPC分类号： G11B5/59688 , G11B5/59622
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing system is disclosed that includes Various embodiments of the present invention provide data processing systems that include an analog to digital converter circuit and a phase and gain computation circuit. The analog to digital converter circuit is operable to convert an analog input into a series of digital samples. At least a portion of the series of digitals samples represent a periodic signal from a servo data region. The phase and gain computation circuit is operable to: determine an approximate amplitude of the periodic signal based at least in part upon the digital samples representing the periodic signal from the servo data region; determine a gain based at least in part on the approximate amplitude; and determine a phase based at least in part on the approximate amplitude.
摘要翻译：本发明的各种实施例提供了用于数据处理的系统和方法。作为示例，公开了一种数据处理系统，其包括本发明的各种实施例，其提供包括模数转换器电路和相位和增益计算电路的数据处理系统。模数转换器电路可操作以将模拟输入转换为一系列数字采样。一系列数字采样的至少一部分表示来自伺服数据区的周期性信号。相位和增益计算电路可操作以：至少部分地基于表示来自伺服数据区域的周期信号的数字采样来确定周期信号的近似幅度; 至少部分地基于近似幅度确定增益; 并且至少部分地基于近似幅度来确定相位。

55. 发明授权

US08773802B1 Disk drive resetting fly height reference generated from a degrading calibration track 有权
标题翻译：从降级校准轨道生成的磁盘驱动器重置飞行高度参考
公开(公告)号：US08773802B1
公开(公告)日：2014-07-08
申请号：US13157809
申请日：2011-06-10
申请人： Kent D. Anderson , Shafa Dahandeh , Galvin T. Chia , Alvin W. Tan , Noureddine Kermiche , Ming Jin
发明人： Kent D. Anderson , Shafa Dahandeh , Galvin T. Chia , Alvin W. Tan , Noureddine Kermiche , Ming Jin
IPC分类号： G11B5/60
CPC分类号： G11B5/6076 , G11B5/6029
摘要： A disk drive is disclosed comprising a head actuated over a disk and a fly height actuator operable to control a fly height of the head in response to a fly height control signal. A touchdown operation is executed to set an operating fly height control signal by adjusting the fly height control signal until the head contacts the disk. A fly height calibration track is then read to set a fly height reference. When calibrating the operating fly height control signal, the fly height calibration track is read and the operating fly height control signal is adjusted in response to the fly height reference. When the adjusted operating fly height control signal is invalid, the touchdown operation is re-executed to reset the operating fly height control signal and then the fly height calibration track is read to reset the fly height reference.
摘要翻译：公开了一种磁盘驱动器，其包括在磁盘上致动的磁头和可高速运行的飞行高度致动器，用于响应于飞行高度控制信号来控制磁头的飞行高度。执行触地操作以通过调整飞行高度控制信号直到磁头与磁盘接触来设定操作飞行高度控制信号。然后读取飞行高度校准轨道以设置飞行高度参考。当校准操作飞行高度控制信号时，读取飞行高度校准轨迹，并且响应于飞行高度参考来调整操作飞行高度控制信号。当调整后的操作飞行高度控制信号无效时，重新执行触地操作以复位操作飞行高度控制信号，然后读取飞行高度校准轨道以重置飞行高度参考。

56. 发明授权

US08773788B2 Systems and methods for hardware assisted write pre-compensation enhancement 有权
标题翻译：用于硬件辅助写入预补偿增强的系统和方法
公开(公告)号：US08773788B2
公开(公告)日：2014-07-08
申请号：US13545348
申请日：2012-07-10
申请人： Ming Jin , Shaohua Yang , Haitao Xia , Fan Zhang
发明人： Ming Jin , Shaohua Yang , Haitao Xia , Fan Zhang
IPC分类号： G11B27/36 , G11B5/00
CPC分类号： G11B20/10305 , G11B5/09 , G11B20/10009
摘要： Various embodiments of the present invention provide systems and methods for calibrating write pre-compensation values.
摘要翻译：本发明的各种实施例提供了用于校准写入预补偿值的系统和方法。

57. 发明授权

US08730067B2 Optimized multi-level finite state machine with redundant DC nodes 有权
标题翻译：具有冗余DC节点的优化多级有限状态机
公开(公告)号：US08730067B2
公开(公告)日：2014-05-20
申请号：US13564836
申请日：2012-08-02
申请人： Wu Chang , Fan Zhang , Ming Jin , Xuebin Wu , Shaohua Yang
发明人： Wu Chang , Fan Zhang , Ming Jin , Xuebin Wu , Shaohua Yang
IPC分类号： H03M5/14
CPC分类号： H03M5/145 , H04L1/22
摘要： A method and system for eliminating/suppressing long transition runs over a communications channel is disclosed. The method may include providing modulation coding based on a multi-level finite state machine (ML-FSM) having a periodic structure, the periodic structure being defined by a predetermined number of time frames. The ML-FSM may include a plurality of penalty-free edges for connecting nodes in one time frame to nodes at the same level in a subsequent time frame and a plurality of penalty edges for connecting nodes in one time frame to nodes at an upper level in the subsequent time frame. The method may further include utilizing the ML-FSM based modulation coding to facilitate data transmission over the communications channel.
摘要翻译：公开了一种用于消除/抑制通过通信信道的长过渡运行的方法和系统。该方法可以包括提供基于具有周期性结构的多级有限状态机（ML-FSM）的调制编码，周期性结构由预定数量的时间帧定义。 ML-FSM可以包括用于将一个时间帧中的节点连接到后续时间帧中的相同电平的节点的多个无罚币边缘，以及用于将一个时间帧中的节点连接到上一级节点的多个惩罚边在随后的时间内。该方法还可以包括利用基于ML-FSM的调制编码来促进在通信信道上的数据传输。

58. 发明授权

US08693120B2 Systems and methods for sample averaging in data processing 有权
标题翻译：数据处理中采样平均的系统和方法
公开(公告)号：US08693120B2
公开(公告)日：2014-04-08
申请号：US13050765
申请日：2011-03-17
申请人： Shaohua Yang , Changyou Xu , Wu Chang , Ming Jin
发明人： Shaohua Yang , Changyou Xu , Wu Chang , Ming Jin
IPC分类号： G11B5/09
CPC分类号： G11B20/1217 , G11B20/10435 , G11B20/10462 , G11B20/1403 , G11B2020/1284 , G11B2020/1476 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes a read circuit and a combining circuit. The read circuit is operable to provide a first instance of a user data set, a second instance of the user data set, and a third instance of the user data set. The combining circuit is operable to: combine at least a first segment of the first instance of the user data set with a first segment of the second instance of the user data set to yield a first combined data segment; provide a second combined data set that includes a combination of one or more second segments from the second instance of the user data set and the third instance of the user data set; and provide an aggregate data set including at least the first combined data set and the second combined data set. The second combined data set does not incorporate a second segment of the first instance of the user data set.
摘要翻译：本发明的各种实施例提供了用于数据处理的系统和方法。作为示例，公开了包括读取电路和组合电路的数据处理电路。读取电路可操作以提供用户数据集的第一实例，用户数据集的第二实例以及用户数据集的第三实例。组合电路可操作为：将用户数据集的第一实例的至少第一段与用户数据集的第二实例的第一段组合以产生第一组合数据段; 提供第二组合数据集，其包括来自用户数据集的第二实例和用户数据集的第三实例的一个或多个第二段的组合; 并提供包括至少第一组合数据集和第二组合数据集的聚合数据集。第二组合数据集不包括用户数据集的第一实例的第二段。

59. 发明申请

US20140055882A1 REAL TIME CLOSE LOOP FLY HEIGHT CONTROL 审中-公开
标题翻译：实时关闭环路飞行高度控制
公开(公告)号：US20140055882A1
公开(公告)日：2014-02-27
申请号：US13593682
申请日：2012-08-24
申请人： Ming Jin , Fan Zhang , Haitao Xia , Wu Chang
发明人： Ming Jin , Fan Zhang , Haitao Xia , Wu Chang
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/607
摘要： A device includes a disk drive assembly configured to store information using a platter comprising a magnetic material surface and a magnetic head disposed above the magnetic material surface. The magnetic head is configured to move across tracks formed on the platter to write information to the magnetic material surface and read information from the magnetic material surface. The device also includes a controller operatively coupled with the disk drive assembly. The controller is configured to dynamically adjust the height of the magnetic head above the magnetic material surface at each of the tracks by determining a harmonic ratio for a particular track and comparing the harmonic ratio to a reference harmonic ratio for the track. For example, the controller calculates a difference between the harmonic ratio and the reference harmonic ratio.
摘要翻译：一种设备包括：盘驱动器组件，其配置为使用包括磁性材料表面的盘片和设置在磁性材料表面上方的磁头来存储信息。磁头构造成在形成在盘片上的轨道上移动以向磁性材料表面写入信息并从磁性材料表面读取信息。该装置还包括与盘驱动器组件可操作地耦合的控制器。控制器被配置为通过确定特定轨道的谐波比并将谐波比与轨道的基准谐波比进行比较来动态地调整磁道材料表面在每个轨道上方的高度。例如，控制器计算谐波比和基准谐波比的差。

60. 发明申请

US20140035692A1 OPTIMIZED MULTI-LEVEL FINITE STATE MACHINE WITH REDUNDANT DC NODES 有权
标题翻译：优化的多级有限状态机与冗余直流电源
公开(公告)号：US20140035692A1
公开(公告)日：2014-02-06
申请号：US13564836
申请日：2012-08-02
申请人： Wu Chang , Fan Zhang , Ming Jin , Xuebin Wu , Shaohua Yang
发明人： Wu Chang , Fan Zhang , Ming Jin , Xuebin Wu , Shaohua Yang
IPC分类号： H04L27/10
CPC分类号： H03M5/145 , H04L1/22
摘要： A method and system for eliminating/suppressing long transition runs over a communications channel is disclosed. The method may include providing modulation coding based on a multi-level finite state machine (ML-FSM) having a periodic structure, the periodic structure being defined by a predetermined number of time frames. The ML-FSM may include a plurality of penalty-free edges for connecting nodes in one time frame to nodes at the same level in a subsequent time frame and a plurality of penalty edges for connecting nodes in one time frame to nodes at an upper level in the subsequent time frame. The method may further include utilizing the ML-FSM based modulation coding to facilitate data transmission over the communications channel.
摘要翻译：公开了一种用于消除/抑制通过通信信道的长过渡运行的方法和系统。该方法可以包括提供基于具有周期性结构的多级有限状态机（ML-FSM）的调制编码，周期性结构由预定数量的时间帧定义。 ML-FSM可以包括用于将一个时间帧中的节点连接到后续时间帧中的相同电平的节点的多个无罚币边缘，以及用于将一个时间帧中的节点连接到上一级节点的多个惩罚边在随后的时间内。该方法还可以包括利用基于ML-FSM的调制编码来促进在通信信道上的数据传输。

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