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    Retrieval of damaged payload data on a shingled magnetic recording data carrier
    9.
    发明授权
    Retrieval of damaged payload data on a shingled magnetic recording data carrier 有权
    检索带有磁带录音数据载体的损坏的有效载荷数据

    公开(公告)号：US09336096B2

    公开(公告)日：2016-05-10

    申请号：US14636006

    申请日：2015-03-02

    申请人： Lothar Pantel

    发明人： Lothar Pantel

    IPC分类号： G11B27/36 ,  G06F11/14 ,  G11B20/12 ,  G06F3/06 ,  G06F12/10

    CPC分类号： G06F11/1469 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0676 ,  G06F12/10 ,  G06F2003/0692 ,  G06F2212/1032 ,  G06F2212/152 ,  G06F2212/21 ,  G06F2212/657 ,  G06F2212/70 ,  G11B20/1217 ,  G11B20/1252 ,  G11B2020/1238

    摘要： A defect management system for storage devices is disclosed, which may be used in connection with shingled magnetic recording (SMR). Overlapping data tracks, separated by guard regions, are written by a write element whose track width is at least twice as wide as the track width of a read element. Depending on the embodiment, data recovery of a defective track or sector is attained by evaluating the contents of an adjacent track or guard region: if the adjacent track or guard region encompasses equivalent data, due to the width of the write element, this data may be used as a complement or as a substitute for the defective track or sector. This may reduce the risk of data loss. The capacity of a storage device may be increased by balancing out the probability of read errors with the probability that an adjacent track may encompass equivalent data.

    摘要翻译： 公开了一种用于存储装置的缺陷管理系统，其可以与带状磁记录（SMR）结合使用。 由保护区域分隔的重叠数据轨道由写入元件写入，该写入元件的轨道宽度至少是读取元素的轨迹宽度的两倍。 根据实施例，通过评估相邻轨道或保护区域的内容来获得缺陷轨道或扇区的数据恢复：如果相邻轨道或保护区域包含等同数据，则由于写元件的宽度，该数据可能 用作补充或替代有缺陷的轨道或部门。 这可能会降低数据丢失的风险。 存储设备的容量可以通过平衡读错误的概率与相邻轨道可以包含等同数据的概率来增加。

    Demodulation method of magnetic data and demodulation device of magnetic data
    10.
    发明授权
    Demodulation method of magnetic data and demodulation device of magnetic data 有权
    磁数据解调方法及磁数据解调装置

    公开(公告)号：US09218846B2

    公开(公告)日：2015-12-22

    申请号：US14669409

    申请日：2015-03-26

    申请人： NIDEC SANKYO CORPORATION

    发明人： Shigeo Nakajima ,  Katsuhisa Higashi ,  Yoichi Isono

    IPC分类号： G11B5/02 ,  G11B20/10 ,  G11B20/12 ,  G11B5/09

    CPC分类号： G11B20/10287 ,  G11B5/00808 ,  G11B5/09 ,  G11B20/10268 ,  G11B20/1252 ,  G11B20/14 ,  G11B20/1403

    摘要： A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.

    摘要翻译： 磁数据的解调方法可以包括第一数据创建步骤，该步骤基于作为模拟磁数据的读取信号的峰值之间的时间间隔的间隔和与模拟形状磁数据的读取信号的峰值之间的时间间隔创建用于创建解调数据的初步数据串;以及 第二数据创建步骤，基于在第一数据创建步骤中创建的初步数据串，创建用于创建解调数据的解调数据创建数据。 当在预定时间内没有检测到读取信号的峰值时，产生伪峰值，并将伪间隔存储在数据存储部分中，并且类似于第一数据创建步骤和第二数据创建步骤的步骤是 并且产生伪峰值，直到创建与最后间隔相对应的解调数据创建数据。