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    Thermally assisted recording system
    1.
    发明授权
    Thermally assisted recording system 有权
    热辅助记录系统

    公开(公告)号：US07446969B2

    公开(公告)日：2008-11-04

    申请号：US11134088

    申请日：2005-05-19

    申请人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    发明人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    IPC分类号： G11B5/02

    CPC分类号： G11B5/66 ,  G11B5/02 ,  G11B5/656 ,  G11B11/10536 ,  G11B11/10584 ,  G11B11/10586 ,  G11B2005/001 ,  G11B2005/0021 ,  H01F10/137 ,  H01F10/16

    摘要： A thermally assisted magnetic recording system is provided to achieve excellent thermal resistance and low noise. In one embodiment, a magnetic recording medium is used, in which the magnetic intergrain exchange coupling is large to let the magnetization be thermally stable by coupling the magnetic grains constituting the recording layer at room temperature (the temperature maintaining the magnetization) and reduced by heating during recording to let the recording magnetization transition slope become steep. Parameter A normalizing the slope around the coercivity of the MH-loop of the medium is 1.5≦A

    摘要翻译： 提供热辅助磁记录系统以实现优异的耐热性和低噪音。 在一个实施例中，使用磁记录介质，其中磁性颗粒间交换耦合大以通过在室温下（构成记录层的磁性颗粒）（保持磁化的温度）并通过加热而减小而使磁化热稳定 在记录期间使记录磁化转变斜率变得陡峭。 参数A围绕介质MH环的矫顽力的斜率标准化在室温下为1.5 <= A <6.0，加热时变为约1.0。

    Thermally assisted recording system
    3.
    发明授权
    Thermally assisted recording system 有权
    热辅助记录系统

    公开(公告)号：US07813071B2

    公开(公告)日：2010-10-12

    申请号：US12287010

    申请日：2008-10-02

    申请人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    发明人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    IPC分类号： G11B5/02

    CPC分类号： G11B5/66 ,  G11B5/02 ,  G11B5/656 ,  G11B11/10536 ,  G11B11/10584 ,  G11B11/10586 ,  G11B2005/001 ,  G11B2005/0021 ,  H01F10/137 ,  H01F10/16

    摘要： A thermally assisted magnetic recording system is provided to achieve excellent thermal resistance and low noise. In one embodiment, a magnetic recording medium is used, in which the magnetic intergrain exchange coupling is large to let the magnetization be thermally stable by coupling the magnetic grains constituting the recording layer at room temperature (the temperature maintaining the magnetization) and reduced by heating during recording to let the recording magnetization transition slope become steep. Parameter A normalizing the slope around the coercivity of the MH-loop of the medium is 1.5≦A

    摘要翻译： 提供热辅助磁记录系统以实现优异的耐热性和低噪音。 在一个实施例中，使用磁记录介质，其中磁性颗粒间交换耦合大以通过在室温下（构成记录层的磁性颗粒）（保持磁化的温度）并通过加热而减小而使磁化热稳定 在记录期间使记录磁化转变斜率变得陡峭。 参数使围绕介质MH环的矫顽力的斜率标准化为1.5＆nlE;室温下A <6.0，加热约为1.0。

    Thermally assisted recording system
    4.
    发明申请
    Thermally assisted recording system 有权
    热辅助记录系统

    公开(公告)号：US20090040646A1

    公开(公告)日：2009-02-12

    申请号：US12287010

    申请日：2008-10-02

    申请人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    发明人： Fumiko Akagi ,  Masukazu Igarashi ,  Hideki Saga

    IPC分类号： G11B5/02

    CPC分类号： G11B5/66 ,  G11B5/02 ,  G11B5/656 ,  G11B11/10536 ,  G11B11/10584 ,  G11B11/10586 ,  G11B2005/001 ,  G11B2005/0021 ,  H01F10/137 ,  H01F10/16

    摘要： A thermally assisted magnetic recording system is provided to achieve excellent thermal resistance and low noise. In one embodiment, a magnetic recording medium is used, in which the magnetic intergrain exchange coupling is large to let the magnetization be thermally stable by coupling the magnetic grains constituting the recording layer at room temperature (the temperature maintaining the magnetization) and reduced by heating during recording to let the recording magnetization transition slope become steep. Parameter A normalizing the slope around the coercivity of the MH-loop of the medium is 1.5≦A

    摘要翻译： 提供热辅助磁记录系统以实现优异的耐热性和低噪音。 在一个实施例中，使用磁记录介质，其中磁性颗粒间交换耦合大以通过在室温下（构成记录层的磁性颗粒）（保持磁化的温度）并通过加热而减小而使磁化热稳定 在记录期间使记录磁化转变斜率变得陡峭。 参数A围绕介质MH环的矫顽力的斜率标准化在室温下为1.5 <= A <6.0，加热时变为约1.0。

    Disk drive and method for controlling the disk drive
    5.
    发明授权
    Disk drive and method for controlling the disk drive 有权
    用于控制磁盘驱动器的磁盘驱动器和方法

    公开(公告)号：US08117489B2

    公开(公告)日：2012-02-14

    申请号：US12479460

    申请日：2009-06-05

    申请人： Yukie Hiratsuka ,  Hideki Saga

    发明人： Yukie Hiratsuka ,  Hideki Saga

    IPC分类号： G06F11/00

    CPC分类号： G06F12/0246 ,  G06F3/0616 ,  G06F3/0631 ,  G06F3/0656 ,  G06F3/0676 ,  G06F11/1666 ,  G06F12/0866 ,  G06F2212/1036 ,  G11B27/36 ,  G11C29/76

    摘要： A disk drive. The disk drive includes a non-volatile memory that is incapable of being overwritten more than a limited number of times, a disk and a controller. The controller includes a memory management table used to manage a correlation between a logical block address (LBA) and a physical address of the non-volatile memory. In the absence of a replaceable region in the non-volatile memory and in response to an occurrence of a failure to write data in a region, defined as a failure region, in the non-volatile memory at a first physical address correlated with a first LBA, the controller is configured to write the data at a second physical address correlated with a second LBA of the non-volatile memory different from the first LBA, and is configured to correlate in the memory management table the first LBA with the second physical address.

    摘要翻译： 磁盘驱动器 磁盘驱动器包括不能被超过有限次数的磁盘和控制器的非易失性存储器。 控制器包括用于管理逻辑块地址（LBA）和非易失性存储器的物理地址之间的相关性的存储器管理表。 在非易失性存储器中没有可替换区域的情况下，并且响应于在被定义为故障区域的区域中写入数据的失败的发生，在非易失性存储器中与第一物理地址相关联的第一物理地址 LBA，控制器被配置为以与第一LBA不同的非易失性存储器的第二LBA相关联的第二物理地址写入数据，并且被配置为在存储器管理表中将第一LBA与第二物理地址相关联 。

    DISK DRIVE AND METHOD FOR CONTROLLING THE DISK DRIVE
    7.
    发明申请
    DISK DRIVE AND METHOD FOR CONTROLLING THE DISK DRIVE 有权
    磁盘驱动器和控制盘驱动器的方法

    公开(公告)号：US20090307525A1

    公开(公告)日：2009-12-10

    申请号：US12479460

    申请日：2009-06-05

    申请人： Yukie Hiratsuka ,  Hideki Saga

    发明人： Yukie Hiratsuka ,  Hideki Saga

    IPC分类号： G06F11/20 ,  G06F12/00 ,  G06F11/00

    CPC分类号： G06F12/0246 ,  G06F3/0616 ,  G06F3/0631 ,  G06F3/0656 ,  G06F3/0676 ,  G06F11/1666 ,  G06F12/0866 ,  G06F2212/1036 ,  G11B27/36 ,  G11C29/76

    摘要： A disk drive. The disk drive includes a non-volatile memory that is incapable of being overwritten more than a limited number of times, a disk and a controller. The controller includes a memory management table used to manage a correlation between a logical block address (LBA) and a physical address of the non-volatile memory. In the absence of a replaceable region in the non-volatile memory and in response to an occurrence of a failure to write data in a region, defined as a failure region, in the non-volatile memory at a first physical address correlated with a first LBA, the controller is configured to write the data at a second physical address correlated with a second LBA of the non-volatile memory different from the first LBA, and is configured to correlate in the memory management table the first LBA with the second physical address.

    摘要翻译： 磁盘驱动器 磁盘驱动器包括不能被超过有限次数的磁盘和控制器的非易失性存储器。 控制器包括用于管理逻辑块地址（LBA）和非易失性存储器的物理地址之间的相关性的存储器管理表。 在非易失性存储器中没有可替换区域的情况下，并且响应于在被定义为故障区域的区域中写入数据的失败的发生，在非易失性存储器中与第一物理地址相关联的第一物理地址 LBA，控制器被配置为以与第一LBA不同的非易失性存储器的第二LBA相关联的第二物理地址写入数据，并且被配置为在存储器管理表中将第一LBA与第二物理地址相关联 。

    Track allocation method of disk drive
    9.
    发明授权
    Track allocation method of disk drive 失效
    磁盘驱动器的跟踪分配方法

    公开(公告)号：US07408731B2

    公开(公告)日：2008-08-05

    申请号：US11645131

    申请日：2006-12-21

    申请人： Tetsuya Uemura ,  Hideki Saga

    发明人： Tetsuya Uemura ,  Hideki Saga

    IPC分类号： G11B5/09 ,  G11B21/02

    CPC分类号： G11B5/09 ,  G11B20/1258 ,  G11B20/1883 ,  G11B2020/1238 ,  G11B2020/1242 ,  G11B2020/1289 ,  G11B2020/1292 ,  G11B2220/20 ,  G11B2220/2516

    摘要： Embodiments in accordance with the present invention relate to methods wherein a capacity of a disk drive is increased by partially overwriting adjacent tracks to shorten the track width and collectively updating a data update unit made up of a plurality of tracks, wherein the capacity reduction caused by a defective track is suppressed. Track groups having two types of track widths, or Shingled Tracks(ST) and Tiled Tracks(TT), are allocated in a zone. First, the zone is divided into two areas, namely, a shingled track (ST) area and a spare or tiled track (TT) area. When a defective track is detected in the shingled track (ST) area, it is checked whether or not the spare or tiled track (TT) area affords an area to be transferred. If it does, an area is transferred from the spare or tiled track (TT) area to the shingled track (ST) area. When it is confirmed that the allocation of ST has been completed, TT is allocated to the remaining spare or tiled track (TT) area in subsequent steps.

    摘要翻译： 根据本发明的实施例涉及通过部分覆盖相邻轨道来增加盘驱动器的容量以缩短轨道宽度并且集体更新由多个轨道组成的数据更新单元的方法，其中由 有缺陷的轨道被抑制。 具有两种类型的轨道宽度的轨道组，或带状轨迹（ST）和平铺曲线（TT））被分配在一个区域中。 首先，该区域分为两个区域，即带状轨道（ST）区域和备用或平铺轨道（TT）区域。 当在带状圈（ST）区域中检测到有缺陷的轨道时，检查备用或平铺轨道（TT）区域是否提供要传送的区域。 如果是这样，一个区域从备用或平铺轨道（TT）区域转移到带状轨道（ST）区域。 当确认ST的分配已经完成时，TT在随后的步骤中分配给剩余的备用或平铺轨道（TT）区域。