知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.016 秒)

    Reading Data from Hard Disks Having Reduced Preambles
    1.
    发明申请
    Reading Data from Hard Disks Having Reduced Preambles 有权
    从硬盘读取数据减少前导码

    公开(公告)号：US20150243321A1

    公开(公告)日：2015-08-27

    申请号：US14220211

    申请日：2014-03-20

    申请人： LSI Corporation

    发明人： Kurt J. Worrell ,  Jason D. Byrne ,  Scott M. Dziak

    IPC分类号： G11B20/10 ,  G11B20/12

    CPC分类号： G11B20/1024 ,  G11B20/10222 ,  G11B20/1217 ,  G11B2020/1232 ,  G11B2020/1242

    摘要： An exemplary hard disk (HD) track has a full overhead section followed by user sections interleaved with intervening partial overhead sections that are too short for an HD drive (HDD) to attain sufficient timing lock using only one partial overhead section, but long enough for the drive to attain sufficient timing lock using multiple partial overhead sections to read user data from the user section immediately following the partial overhead section where sufficient timing lock is attained. The drive begins, but does not finish, attaining timing lock based on the first partial overhead section, but the drive does finish attaining timing lock based on the last partial overhead section. The drive can also read user data in subsequent user sections by maintaining or re-attaining sufficient timing lock using each successive partial overhead section. Increased user data storage is achieved without significantly impacting average latency of HDD read sessions compared to conventional HD drives.

    摘要翻译： 示例性硬盘（HD）轨道具有完整的开销部分，其后是与HD驱动器（HDD）太短的中间部分开销部分交错的用户部分，以仅使用一个部分开销部分来获得足够的定时锁定，但足够长 使用多个部分开销部分来获得充分的定时锁定的驱动器，以便在紧接在获得足够的定时锁定的部分开销部分之后的用户部分中读取用户数据。 驱动器开始但没有完成，基于第一部分开销部分获得定时锁定，但驱动器完成基于最后部分开销部分获得定时锁定。 驱动器还可以通过使用每个连续部分开销部分维持或重新获得足够的定时锁定来读取后续用户部分中的用户数据。 实现与常规HD驱动器相比，增加的用户数据存储不会明显影响HDD读取会话的平均延迟。

    Systems and methods for medium proximity detection in a read channel
    2.
    发明授权
    Systems and methods for medium proximity detection in a read channel 有权
    在读通道中进行中等接近检测的系统和方法

    公开(公告)号：US08773809B2

    公开(公告)日：2014-07-08

    申请号：US13690435

    申请日：2012-11-30

    申请人： LSI Corporation

    发明人： Ming Jin ,  Erich F. Haratsch ,  Jason S. Goldberg ,  Kurt J. Worrell ,  Scott M. Dziak ,  Jeffrey P. Grundvig

    IPC分类号： G11B21/02

    CPC分类号： G11B27/36 ,  G11B5/6076 ,  G11B2220/2516

    摘要： A contact event between a sensing device and a storage medium is detected by receiving a signal indicating a physical proximity between the sensing device and the storage medium; generating a plurality of frequency bin outputs; comparing one or more frequency bin outputs to a corresponding first level threshold to yield a corresponding comparator output; summing the comparator output with at least one prior instance of the comparator output to yield an aggregated value; comparing the aggregated value to an aggregate threshold to yield an aggregate output; and generating a contact event output if one or more of a first group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value and a predefined minimum number of a second group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value.

    摘要翻译： 通过接收指示感测装置和存储介质之间的物理接近的信号来检测感测装置和存储介质之间的接触事件; 产生多个频率仓输出; 将一个或多个频率仓输出与相应的第一电平阈值进行比较以产生相应的比较器输出; 将比较器输出与比较器输出的至少一个先前实例相加以产生聚合值; 将聚合值与聚合阈值进行比较以产生总产出; 以及如果所述多个频率仓输出中的第一组中的一个或多个具有设置为预定二进制值的相关联的聚合输出并且所述多个频率仓输出中的第二组的预定最小数量具有 关联的聚合输出设置为预定义的二进制值。

    INTER-TRACK INTERFERENCE MITIGATION IN MAGNETIC RECORDING SYSTEMS USING AVERAGED VALUES
    3.
    发明申请
    INTER-TRACK INTERFERENCE MITIGATION IN MAGNETIC RECORDING SYSTEMS USING AVERAGED VALUES 有权
    使用平均值的磁记录系统中的跟踪间干扰减轻

    公开(公告)号：US20130286498A1

    公开(公告)日：2013-10-31

    申请号：US13834648

    申请日：2013-03-15

    申请人： LSI Corporation

    发明人： Erich F. Haratsch ,  Ming Jin ,  George Mathew ,  Jongseung Park ,  Kurt J. Worrell

    IPC分类号： G11B20/22

    CPC分类号： G11B20/22 ,  G11B5/012 ,  G11B5/09 ,  G11B19/045 ,  G11B20/10009

    摘要： 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.

    摘要翻译： 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。

    Systems and Methods for Medium Proximity Detection in a Read Channel
    4.
    发明申请
    Systems and Methods for Medium Proximity Detection in a Read Channel 有权
    读通道中接近检测的系统和方法

    公开(公告)号：US20130148230A1

    公开(公告)日：2013-06-13

    申请号：US13690435

    申请日：2012-11-30

    申请人： LSI Corporation

    发明人： Ming Jin ,  Erich F. Haratsch ,  Jason S. Goldberg ,  Kurt J. Worrell ,  Scott M. Dziak ,  Jeffrey P. Grundvig

    IPC分类号： G11B27/36

    CPC分类号： G11B27/36 ,  G11B5/6076 ,  G11B2220/2516

    摘要： A contact event between a sensing device and a storage medium is detected by receiving a signal indicating a physical proximity between the sensing device and the storage medium; generating a plurality of frequency bin outputs; comparing one or more frequency bin outputs to a corresponding first level threshold to yield a corresponding comparator output; summing the comparator output with at least one prior instance of the comparator output to yield an aggregated value; comparing the aggregated value to an aggregate threshold to yield an aggregate output; and generating a contact event output if one or more of a first group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value and a predefined minimum number of a second group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value.

    摘要翻译： 通过接收指示感测装置和存储介质之间的物理接近的信号来检测感测装置和存储介质之间的接触事件; 产生多个频率仓输出; 将一个或多个频率仓输出与相应的第一电平阈值进行比较以产生相应的比较器输出; 将比较器输出与比较器输出的至少一个先前实例相加以产生聚合值; 将聚合值与聚合阈值进行比较以产生总产出; 以及如果所述多个频率仓输出中的第一组中的一个或多个具有设置为预定二进制值的相关联的聚合输出并且所述多个频率仓输出中的第二组的预定最小数量具有 关联的聚合输出设置为预定义的二进制值。

    Reading data from hard disks having reduced preambles
    7.
    发明授权
    Reading data from hard disks having reduced preambles 有权
    从具有减少的前导码的硬盘读取数据

    公开(公告)号：US09147430B2

    公开(公告)日：2015-09-29

    申请号：US14220211

    申请日：2014-03-20

    申请人： LSI Corporation

    发明人： Kurt J. Worrell ,  Jason D. Byrne ,  Scott M. Dziak

    IPC分类号： G11B5/09 ,  G11B20/10 ,  G11B20/12

    CPC分类号： G11B20/1024 ,  G11B20/10222 ,  G11B20/1217 ,  G11B2020/1232 ,  G11B2020/1242

    摘要： An exemplary hard disk (HD) track has a full overhead section followed by user sections interleaved with intervening partial overhead sections that are too short for an HD drive (HDD) to attain sufficient timing lock using only one partial overhead section, but long enough for the drive to attain sufficient timing lock using multiple partial overhead sections to read user data from the user section immediately following the partial overhead section where sufficient timing lock is attained. The drive begins, but does not finish, attaining timing lock based on the first partial overhead section, but the drive does finish attaining timing lock based on the last partial overhead section. The drive can also read user data in subsequent user sections by maintaining or re-attaining sufficient timing lock using each successive partial overhead section. Increased user data storage is achieved without significantly impacting average latency of HDD read sessions compared to conventional HD drives.

    摘要翻译： 示例性硬盘（HD）轨道具有完整的开销部分，其后是与HD驱动器（HDD）太短的中间部分开销部分交错的用户部分，以仅使用一个部分开销部分来获得足够的定时锁定，但足够长 使用多个部分开销部分来获得充分的定时锁定的驱动器，以便在紧接在获得足够的定时锁定的部分开销部分之后的用户部分中读取用户数据。 驱动器开始但没有完成，基于第一部分开销部分获得定时锁定，但驱动器完成基于最后部分开销部分获得定时锁定。 驱动器还可以通过使用每个连续部分开销部分维持或重新获得足够的定时锁定来读取后续用户部分中的用户数据。 实现与常规HD驱动器相比，增加的用户数据存储不会明显影响HDD读取会话的平均延迟。

    Inter-track interference mitigation in magnetic recording systems using averaged values
    8.
    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

    申请人： LSI Corporation

    发明人： Erich F. Haratsch ,  Ming Jin ,  George Mathew ,  Jongseung Park ,  Kurt J. Worrell

    IPC分类号： G11B5/09 ,  G11B20/22 ,  G11B5/012 ,  G11B19/04 ,  G11B20/10

    CPC分类号： G11B20/22 ,  G11B5/012 ,  G11B5/09 ,  G11B19/045 ,  G11B20/10009

    摘要： 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.

    摘要翻译： 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。