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    MAGNETIC STORAGE DEVICE READERS
    3.
    发明申请
    MAGNETIC STORAGE DEVICE READERS 有权

    公开(公告)号：US20170200468A1

    公开(公告)日：2017-07-13

    申请号：US14993694

    申请日：2016-01-12

    Applicant: Seagate Technology LLC

    Inventor： Wenzhong Zhu ,  Mehmet F. Erden ,  Kenneth A. Haapala ,  Wei Tian ,  Edward Gage

    IPC: G11B20/12

    CPC classification number: G11B20/1217 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/4813 ,  G11B5/4886 ,  G11B20/10009 ,  G11B2020/1238

    Abstract: Implementations described and claimed herein includes a storage device comprising a plurality of readers, including a first subset of readers configured to read a first subset of tracks and a second subset of readers configured to read a second subset of tracks, the first subset of tracks being wider than the second subset of tracks. In another implementation, the readers in the first subset of readers are wider than the readers in the second subset of readers. The wider readers may be configured to recover servo information and the narrow readers may be configured to recover data information. The storage devices may include two-dimensional magnetic recording, conventional perpendicular magnetic recording, shingled magnetic recording, multi-sensor magnetic recording, and interlaced magnetic recording.

    METHOD AND SYSTEM FOR ERROR CHECKING IN BIT-PATTERNED MEDIA
    4.
    发明申请
    METHOD AND SYSTEM FOR ERROR CHECKING IN BIT-PATTERNED MEDIA 审中-公开
    方法和系统用于错误检查在位图形媒体

    公开(公告)号：US20130128372A1

    公开(公告)日：2013-05-23

    申请号：US13671907

    申请日：2012-11-08

    Applicant: Seagate Technology LLC

    Inventor： Michael L. Mallary ,  Mehmet F. Erden ,  Ching He ,  Sailaja V. Chilaka

    IPC: G11B20/18 ,  G11B27/36

    CPC classification number: G11B20/1879 ,  B82Y10/00 ,  G11B5/743 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/36 ,  G11B2020/10759 ,  G11B2020/10796 ,  G11B2020/1836 ,  G11B2220/252

    Abstract: A disc drive system provides increased reliability by detecting and correcting errors associated with bit-patterned media. Write synchronization errors associated with bit-patterned media are addressed by including data storage for temporarily storing data that is being written to the disc drive. The data is read from both the disc drive and the storage medium and compared to detect write synchronization errors. A disc drive system for correcting write synchronization errors includes an encoder, non-volatile storage, and decoder device for implementing a parity-based scheme for increased reliability. Data strings being written to the disc drive are combined in an encoder to generate a parity string. The address of the data being written to the disc drive, along with the updated parity string is stored to the non-volatile storage. The data strings are read from the disc drive by the decoder. If uncorrectable errors are identified, the decoder employs the parity string in conjunction with the other data strings written to the disc drive to reconstruct the data string with uncorrectable errors.

    Abstract translation: 磁盘驱动器系统通过检测和校正与位图形介质相关的错误来提供增加的可靠性。 与位图形介质相关联的写入同步错误通过包括临时存储要写入磁盘驱动器的数据的数据存储来解决。 数据从磁盘驱动器和存储介质读取，并进行比较以检测写同步错误。 用于校正写同步错误的盘驱动系统包括用于实现基于奇偶校验的方案以提高可靠性的编码器，非易失性存储和解码器装置。 写入盘驱动器的数据串被组合在编码器中以产生奇偶校验串。 被写入到磁盘驱动器的数据的地址以及更新的奇偶校验字符串被存储到非易失性存储器中。 数据串由解码器从盘驱动器读取。 如果识别出不可校正的错误，则解码器将奇偶校验码串与写入盘驱动器的其他数据串结合使用不可校正的错误重建数据串。

    Method and system for error checking in bit-patterned media
    5.
    发明授权
    Method and system for error checking in bit-patterned media 有权
    位图案介质中错误检查的方法和系统

    公开(公告)号：US09099160B2

    公开(公告)日：2015-08-04

    申请号：US13671907

    申请日：2012-11-08

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Michael L. Mallary ,  Mehmet F. Erden ,  Ching He ,  Sailaja V. Chilaka

    IPC: G11B5/09 ,  G11B20/18 ,  B82Y10/00 ,  G11B5/74 ,  G11B27/36 ,  G11B20/10

    CPC classification number: G11B20/1879 ,  B82Y10/00 ,  G11B5/743 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/36 ,  G11B2020/10759 ,  G11B2020/10796 ,  G11B2020/1836 ,  G11B2220/252

    Abstract: A disc drive system provides increased reliability by detecting and correcting errors associated with bit-patterned media. Write synchronization errors associated with bit-patterned media are addressed by including data storage for temporarily storing data that is being written to the disc drive. The data is read from both the disc drive and the storage medium and compared to detect write synchronization errors. A disc drive system for correcting write synchronization errors includes an encoder, non-volatile storage, and decoder device for implementing a parity-based scheme for increased reliability. Data strings being written to the disc drive are combined in an encoder to generate a parity string. The address of the data being written to the disc drive, along with the updated parity string is stored to the non-volatile storage. The data strings are read from the disc drive by the decoder. If uncorrectable errors are identified, the decoder employs the parity string in conjunction with the other data strings written to the disc drive to reconstruct the data string with uncorrectable errors.

    Abstract translation: 磁盘驱动器系统通过检测和校正与位图形介质相关的错误来提供增加的可靠性。 与位图形介质相关联的写入同步错误通过包括临时存储要写入磁盘驱动器的数据的数据存储来解决。 数据从磁盘驱动器和存储介质读取，并进行比较以检测写同步错误。 用于校正写同步错误的盘驱动系统包括用于实现基于奇偶校验的方案以提高可靠性的编码器，非易失性存储器和解码器装置。 被写入盘驱动器的数据串被组合在编码器中以产生奇偶校验串。 被写入到磁盘驱动器的数据的地址以及更新的奇偶校验字符串被存储到非易失性存储器中。 数据串由解码器从盘驱动器读取。 如果识别出不可校正的错误，则解码器将奇偶校验码串与写入盘驱动器的其他数据串结合使用不可校正的错误重建数据串。

    Magnetic storage device readers
    6.
    发明授权
    Magnetic storage device readers 有权

    公开(公告)号：US09818445B2

    公开(公告)日：2017-11-14

    申请号：US14993694

    申请日：2016-01-12

    Applicant: Seagate Technology LLC

    Inventor： Wenzhong Zhu ,  Mehmet F. Erden ,  Kenneth A. Haapala ,  Wei Tian ,  Edward Gage

    IPC: G11B20/12

    CPC classification number: G11B20/1217 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/4813 ,  G11B5/4886 ,  G11B20/10009 ,  G11B2020/1238

    Abstract: Implementations described and claimed herein includes a storage device comprising a plurality of readers, including a first subset of readers configured to read a first subset of tracks and a second subset of readers configured to read a second subset of tracks, the first subset of tracks being wider than the second subset of tracks. In another implementation, the readers in the first subset of readers are wider than the readers in the second subset of readers. The wider readers may be configured to recover servo information and the narrow readers may be configured to recover data information. The storage devices may include two-dimensional magnetic recording, conventional perpendicular magnetic recording, shingled magnetic recording, multi-sensor magnetic recording, and interlaced magnetic recording.

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