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    SHINGLED MAGNETIC RECORDING DISK DRIVE WITH MINIMIZATION OF THE EFFECT OF FAR TRACK ERASURE ON ADJACENT DATA BANDS
    2.
    发明申请
    SHINGLED MAGNETIC RECORDING DISK DRIVE WITH MINIMIZATION OF THE EFFECT OF FAR TRACK ERASURE ON ADJACENT DATA BANDS 有权
    最小化跟踪擦除对相邻数据库的影响的摇摆磁记录盘驱动器

    公开(公告)号：US20130242426A1

    公开(公告)日：2013-09-19

    申请号：US13423177

    申请日：2012-03-17

    申请人： Zvonimir Z. Bandic ,  Cyril Guyot ,  Tomohiro Harayama ,  Robert Eugeniu Mateescu ,  Shad Henry Thorstenson ,  Timothy Kohchih Tsai

    发明人： Zvonimir Z. Bandic ,  Cyril Guyot ,  Tomohiro Harayama ,  Robert Eugeniu Mateescu ,  Shad Henry Thorstenson ,  Timothy Kohchih Tsai

    IPC分类号： G11B27/36

    CPC分类号： G11B27/36 ,  G11B5/012 ,  G11B20/1258 ,  G11B20/1816 ,  G11B2020/10898 ,  G11B2020/1298

    摘要： A shingled magnetic recording (SMR) hard disk drive (HDD) essentially eliminates the effect of far track erasure (FTE) in the boundary regions of annular data bands caused by writing in the boundary regions of adjacent annular data bands. The extent of the FTE effect is determined for each track within a range of tracks of the track being written. Based on the relative FTE effect for all the tracks in the range, a count increment (CI) table or a cumulative count increment (CCI) table is maintained for all the tracks in the range. For every writing to a track in a boundary region, a count for each track in an adjacent boundary region, or a cumulative count for the adjacent boundary region, is increased. When the count reaches a predetermined threshold the data is read from that band and rewritten to the same band.

    摘要翻译： 磁带录音（SMR）硬盘驱动器（HDD）基本上消除了在相邻环形数据频带的边界区域中写入引起的环形数据频带的边界区域中的远跟踪擦除（FTE）的影响。 对正在写入的轨道的轨道范围内的每个轨道确定FTE效果的程度。 基于该范围内所有轨道的相对FTE效应，对该范围内的所有轨道维持计数增量（CI）表或累积计数增量（CCI）表。 对于对边界区域中的轨迹的每次写入，相邻边界区域中的每个轨道的计数或相邻边界区域的累积计数增加。 当计数达到预定阈值时，从该频带读取数据并重写到相同的频带。

    MAGNETIC DISK APPARATUS, READ/WRITE CONTROL METHOD, AND CONTROLLER
    3.
    发明申请
    MAGNETIC DISK APPARATUS, READ/WRITE CONTROL METHOD, AND CONTROLLER 有权
    磁盘设备，读/写控制方法和控制器

    公开(公告)号：US20130194689A1

    公开(公告)日：2013-08-01

    申请号：US13560094

    申请日：2012-07-27

    申请人： Yoriharu TAKAI

    发明人： Yoriharu TAKAI

    IPC分类号： G11B27/36

    CPC分类号： G11B27/36 ,  G11B5/09 ,  G11B19/045 ,  G11B20/10009 ,  G11B20/1217 ,  G11B20/1883 ,  G11B2020/1298 ,  G11B2020/1893 ,  G11B2020/1896

    摘要： According to at least one embodiment, a magnetic disk apparatus includes a magnetic disk, a nonvolatile memory, a determination module, a write module, and a read module. The determination module determines whether the off-track write occurs on a first data sector during a write mode. The write module writes first data in the nonvolatile memory if the determination module determines that the off-track write occurs on the first data sector. The read module reads the first data from one of the magnetic disk and the nonvolatile memory based on a determination result of the determination module.

    摘要翻译： 根据至少一个实施例，磁盘装置包括磁盘，非易失性存储器，确定模块，写入模块和读取模块。 确定模块确定在写入模式期间是否在第一数据扇区上发生偏离磁道写入。 如果确定模块确定在第一数据扇区上发生离轨写入，则写入模块将第一数据写入非易失性存储器。 读取模块基于确定模块的确定结果从磁盘和非易失性存储器之一读取第一数据。

    ENERGY-BASED INTER-TRACK INTERFERENCE CANCELLATION
    4.
    发明申请
    ENERGY-BASED INTER-TRACK INTERFERENCE CANCELLATION 有权
    基于能量的互联干扰消除

    公开(公告)号：US20130070362A1

    公开(公告)日：2013-03-21

    申请号：US13591888

    申请日：2012-08-22

    申请人： George Mathew ,  Erich Franz Haratsch ,  Jongseung Park ,  Timothy B. Lund

    发明人： George Mathew ,  Erich Franz Haratsch ,  Jongseung Park ,  Timothy B. Lund

    IPC分类号： G11B20/24

    CPC分类号： G11B20/24 ,  G11B5/012 ,  G11B19/045 ,  G11B20/10046 ,  G11B20/10398 ,  G11B20/1217 ,  G11B2020/10759 ,  G11B2020/1232 ,  G11B2020/1298 ,  G11B2220/2516

    摘要： Described embodiments cancel inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A read channel reads one or more sectors in the desired track and generates one or more groups of sample values corresponding to each of the sectors. An ITI canceller estimates an ITI response and an ITI signal for each sample value corresponding to (i) a next adjacent track and (ii) a previous adjacent track. If the estimated ITI response of the previous adjacent track reaches a predetermined threshold, the ITI canceller subtracts the estimated ITI signal corresponding to the previous adjacent track from each associated sample value of the desired track. If the estimated ITI response of the next adjacent track reaches a predetermined threshold, the ITI canceller subtracts the estimated ITI signal corresponding to the next adjacent track from each associated sample value of the desired track.

    摘要翻译： 所描述的实施例从从存储介质的期望轨道读取的一个或多个扇区中消除轨道间干扰（ITI）。 读通道读取所需轨道中的一个或多个扇区，并生成与每个扇区对应的一组或多组样本值。 ITI消除器估计对应于（i）下一个相邻轨道和（ii）先前相邻轨道的每个采样值的ITI响应和ITI信号。 如果先前相邻轨道的估计ITI响应达到预定阈值，则ITI消除器从期望轨道的每个相关联采样值中减去对应于先前相邻轨道的估计ITI信号。 如果下一相邻轨道的估计ITI响应达到预定阈值，则ITI消除器从期望轨道的每个相关联采样值中减去对应于下一相邻轨道的估计ITI信号。

    Low track-per-inch (TPI) zone with reduced need for adjacent-track-erasure (ATE) refresh
    9.
    发明授权
    Low track-per-inch (TPI) zone with reduced need for adjacent-track-erasure (ATE) refresh 失效
    低轨道每英寸（TPI）区域，减少对相邻轨道擦除（ATE）刷新的需求

    公开(公告)号：US07864476B2

    公开(公告)日：2011-01-04

    申请号：US12052480

    申请日：2008-03-20

    申请人： Richard M. Ehrlich

    发明人： Richard M. Ehrlich

    IPC分类号： G11B15/04 ,  G11B19/04 ,  G11B27/36

    CPC分类号： G11B5/596 ,  G11B5/012 ,  G11B20/10009 ,  G11B20/1217 ,  G11B2020/1298 ,  G11B2220/2516

    摘要： Methods and systems are shown that specify at least one low track-per-inch (TPI) region and at least one normal TPI region on a disk. The low TPI region may be used to store information that may be rewritten frequently. The normal TPI region may be used to store information that may be rewritten less frequently. The low TPI region may reduce the need for adjacent-track-erasure (ATE) refresh.

    摘要翻译： 示出了方法和系统，其指定至少一个低轨道/英寸（TPI）区域和盘上的至少一个正常TPI区域。 低TPI区域可以用于存储可以经常重写的信息。 正常的TPI区域可以用于存储可能被重写的频率较低的信息。 低TPI区域可能减少对相邻轨道擦除（ATE）刷新的需要。

    System and method for optical media information storage life tracking
    10.
    发明授权
    System and method for optical media information storage life tracking 有权
    光学媒体信息存储生命跟踪系统与方法

    公开(公告)号：US07852724B2

    公开(公告)日：2010-12-14

    申请号：US12026630

    申请日：2008-02-06

    申请人： Dirk Erickson ,  Robert A. Brondijk ,  Jaconus Petrus Josephus Heemskerk ,  Jakob G. Nijboer ,  Christiaan Steenbergen ,  Charles R. Weirauch

    发明人： Dirk Erickson ,  Robert A. Brondijk ,  Jaconus Petrus Josephus Heemskerk ,  Jakob G. Nijboer ,  Christiaan Steenbergen ,  Charles R. Weirauch

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24 ,  G11B20/1217 ,  G11B20/1816 ,  G11B23/30 ,  G11B2020/1265 ,  G11B2020/1298 ,  G11B2020/1869

    摘要： Expiration information stored on an optical medium is applied to determine an expiration date of the optical medium that provides a predetermined reliability of information archived on the optical medium, such as a predetermined acceptable defect level of the information at the expiration date. An expiration engine associated with an information handling system or optical disc drive determines the expiration date from one or more factors, such as the manufacture date of read-only optical media, the initialization date of recordable optical media, a quality rating associated with a defect growth rate over time of the optical media, and a desired reliability. In one embodiment, the expiration engine writes expiration information to the optical media, such as a date stamp at initialization of a recordable optical medium. Alternatively, an expiration date is stored on an information handling system to provide expiration warnings a predetermined time before the expiration date.

    摘要翻译： 应用存储在光学介质上的过期信息，以确定光学介质的有效期限，其提供存储在光学介质上的信息的预定可靠性，例如在到期日期的信息的预定可接受的缺陷水平。 与信息处理系统或光盘驱动器相关联的到期引擎从一个或多个因素确定到期日期，例如只读光学介质的制造日期，可记录光学介质的初始化日期，与缺陷相关联的质量等级 光学介质随着时间的增长速率和期望的可靠性。 在一个实施例中，过期引擎将到期信息写入光学介质，诸如在可记录光学介质初始化时的日期戳。 或者，到期日期存储在信息处理系统上，以在到期日之前的预定时间提供过期警告。