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。

公开(公告)号：US09495996B2

公开(公告)日：2016-11-15

申请号：US13843222

申请日：2013-03-15

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Michael Mallary ,  Ching He

IPC: G11B5/39 ,  G11B11/105 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/31 ,  G11B5/74 ,  G11B5/82 ,  G11B5/127 ,  G11B5/00

CPC classification number: G11B11/10539 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3967 ,  G11B5/743 ,  G11B5/82 ,  G11B2005/0021

Abstract: A writer includes a magnetic write pole having a leading surface and a trailing surface and a near field transducer peg spaced from the leading surface of the write pole to provide energy assisted recording. A magnetic recording system for writing to and reading from a continuous magnetic medium includes a write element having a write element tip having a leading edge and a trailing edge, and wherein at least one surface of the write element that extends in a cross-track direction on the continuous magnetic medium has no line of symmetry.

Abstract translation: 写入器包括具有前表面和后表面的磁写入极和与写极的前表面间隔开的近场换能器，以提供能量辅助的记录。 一种用于对连续磁介质进行写入和读取的磁记录系统包括一写入元件，该写入元件具有一个具有前缘和后缘的写元件尖端，并且其中该写元件的至少一个表面沿横向方向延伸 在连续磁介质上没有对称线。

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。