Storage device with adaptive error-correcting code for improved areal efficiency
    1.
    发明授权
    Storage device with adaptive error-correcting code for improved areal efficiency 有权
    具有自适应纠错码的存储设备,可提高面积效率

    公开(公告)号:US08301948B2

    公开(公告)日:2012-10-30

    申请号:US12538367

    申请日:2009-08-10

    摘要: A method for adaptively applying an error-correcting code to a storage device is disclosed. A determination is made that a system is in an idle state of input/output requests. First data symbols are copied into a first location within a buffer. First data symbol errors corrected using a first error-correcting code. Second data symbols including corrected bits are written in a second location on the recording media with a second error-correcting code. An error number for the second data symbols in the second location is determined. If the error number is below a first threshold error number, the first data symbols are deleted. If the error number is above the first threshold error number, the second data symbols are deleted.

    摘要翻译: 公开了一种用于将纠错码自适应地应用于存储装置的方法。 确定系统处于空闲状态的输入/输出请求。 第一数据符号被复制到缓冲器内的第一位置。 使用第一纠错码校正的第一数据符号错误。 包括校正位的第二数据符号用第二纠错码写入记录介质上的第二位置。 确定第二位置中的第二数据符号的错误号。 如果错误号低于第一阈值错误号,则删除第一数据符号。 如果错误号高于第一阈值错误号,则删除第二数据符号。

    STORAGE DEVICE WITH ADAPTIVE ERROR-CORRECTING CODE FOR IMPROVED AREAL EFFICIENCY
    2.
    发明申请
    STORAGE DEVICE WITH ADAPTIVE ERROR-CORRECTING CODE FOR IMPROVED AREAL EFFICIENCY 有权
    具有适应性错误修正代码的存储设备,用于提高AREAL效率

    公开(公告)号:US20110035634A1

    公开(公告)日:2011-02-10

    申请号:US12538367

    申请日:2009-08-10

    IPC分类号: G06F12/16 G06F11/10 H03M13/29

    摘要: A method for adaptively applying an error-correcting code to a storage device is disclosed. A determination is made that a system is in an idle state of input/output requests. First data symbols are copied into a first location within a buffer. First data symbol errors corrected using a first error-correcting code. Second data symbols including corrected bits are written in a second location on the recording media with a second error-correcting code. An error number for the second data symbols in the second location is determined. If the error number is below a first threshold error number, the first data symbols are deleted. If the error number is above the first threshold error number, the second data symbols are deleted.

    摘要翻译: 公开了一种用于将纠错码自适应地应用于存储装置的方法。 确定系统处于空闲状态的输入/输出请求。 第一数据符号被复制到缓冲器内的第一位置。 使用第一纠错码校正的第一数据符号错误。 包括校正位的第二数据符号用第二纠错码写入记录介质上的第二位置。 确定第二位置中的第二数据符号的错误号。 如果错误号低于第一阈值错误号,则删除第一数据符号。 如果错误号高于第一阈值错误号,则删除第二数据符号。

    Patterned magnetic storage medium
    3.
    发明授权
    Patterned magnetic storage medium 有权
    图案磁存储介质

    公开(公告)号:US09142239B2

    公开(公告)日:2015-09-22

    申请号:US13332206

    申请日:2011-12-20

    IPC分类号: G11B5/74 G11B5/667 G11B5/855

    CPC分类号: G11B5/746 G11B5/667 G11B5/855

    摘要: According to one embodiment, a patterned magnetic storage medium is disclosed herein. The magnetic storage medium includes a magnetic domain, a substantially non-magnetic region laterally adjacent to the magnetic domain, and an exchange spring structure disposed between the magnetic domain and the laterally adjacent non-magnetic region wherein the exchange spring structure comprises implanted ions.

    摘要翻译: 根据一个实施例,本文公开了图案化的磁存储介质。 磁存储介质包括磁畴,与磁畴横向相邻的基本非磁性区域,以及设置在磁畴与横向相邻非磁性区域之间的交换弹簧结构,其中交换弹簧结构包括注入的离子。

    PATTERNED MAGNETIC STORAGE MEDIUM
    4.
    发明申请
    PATTERNED MAGNETIC STORAGE MEDIUM 有权
    图形磁性储存介质

    公开(公告)号:US20130155549A1

    公开(公告)日:2013-06-20

    申请号:US13332206

    申请日:2011-12-20

    IPC分类号: G11B5/82 G11B5/33

    CPC分类号: G11B5/746 G11B5/667 G11B5/855

    摘要: According to one embodiment, a patterned magnetic storage medium is disclosed herein. The magnetic storage medium includes a magnetic domain, a substantially non-magnetic region laterally adjacent to the magnetic domain, and an exchange spring structure disposed between the magnetic domain and the laterally adjacent non-magnetic region wherein the exchange spring structure comprises implanted ions.

    摘要翻译: 根据一个实施例,本文公开了图案化的磁存储介质。 磁存储介质包括磁畴,与磁畴横向相邻的基本非磁性区域,以及设置在磁畴与横向相邻非磁性区域之间的交换弹簧结构,其中交换弹簧结构包括注入的离子。

    Patterned magnetic media having an exchange bridge structure connecting islands
    5.
    发明授权
    Patterned magnetic media having an exchange bridge structure connecting islands 有权
    具有连接岛的交换桥结构的图案化磁介质

    公开(公告)号:US07867406B2

    公开(公告)日:2011-01-11

    申请号:US11964685

    申请日:2007-12-26

    IPC分类号: G11B5/84

    摘要: Patterned magnetic recording media and associated methods of fabrication are described. The patterned magnetic recording media includes a perpendicular magnetic recording layer that is patterned into a plurality of discrete magnetic islands. The patterned magnetic recording media also includes an exchange bridge structure formed from magnetic material that connects the islands of the perpendicular magnetic recording layer. Connecting the islands with magnetic material increases exchange coupling between the islands, which makes the islands more magnetically stable.

    摘要翻译: 描述了图案化的磁记录介质和相关的制造方法。 图案化的磁记录介质包括被图案化成多个离散磁岛的垂直磁记录层。 图案化的磁记录介质还包括由连接垂直磁记录层的岛的磁性材料形成的交换桥结构。 用磁性材料连接岛增加了岛之间的交换耦合,这使得岛更加磁稳定。

    Magnetic data recording system with improved servo capability for bit patterned recording
    6.
    发明授权
    Magnetic data recording system with improved servo capability for bit patterned recording 有权
    磁数据记录系统具有改进的伺服能力,用于位图记录

    公开(公告)号:US08937783B2

    公开(公告)日:2015-01-20

    申请号:US13333972

    申请日:2011-12-21

    IPC分类号: G11B5/02

    摘要: A magnetic data recording system wherein the wherein adjacent track interference during writing is avoided by modulating the size of a write bubble on the magnetic media in response to a position error signal. If the position error signal indicates that the magnetic head is off-track, circuitry within the magnetic data recording system adjusts the size of the write bubble temporarily to prevent the write bubble from encroaching on a neighboring data track. This adjustment of the write bubble can be accomplished by adjusting power to the write head. Adjustment of the write bubble can also be achieved by adjusting power to a magnetic oscillator in a microwave assisted magnetic recording system (MAMR) or adjusting power to a heating element in a thermally assisted magnetic recording system.

    摘要翻译: 一种磁数据记录系统,其中通过响应于位置误差信号调制磁介质上的写入气泡的尺寸来避免写入期间的相邻磁道干扰。 如果位置误差信号表示磁头偏离磁道,则磁数据记录系统内的电路暂时调整写入气泡的大小,以防止写入气泡侵入相邻的数据轨道。 写入气泡的这种调整可以通过调整写入头的功率来实现。 写入气泡的调整也可以通过调节微波辅助磁记录系统(MAMR)中的磁性振荡器的功率或者调整热辅助磁记录系统中的加热元件的功率来实现。

    PATTERNED MAGNETIC MEDIA HAVING AN EXCHANGE BRIDGE STRUCTURE CONNECTING ISLANDS
    7.
    发明申请
    PATTERNED MAGNETIC MEDIA HAVING AN EXCHANGE BRIDGE STRUCTURE CONNECTING ISLANDS 审中-公开
    具有交换桥结构的图形磁介质连接岛

    公开(公告)号:US20110075297A1

    公开(公告)日:2011-03-31

    申请号:US12959692

    申请日:2010-12-03

    IPC分类号: G11B5/82 G11B5/84

    摘要: Patterned magnetic recording media and associated methods of fabrication are described. The patterned magnetic recording media includes a perpendicular magnetic recording layer that is patterned into a plurality of discrete magnetic islands. The patterned magnetic recording media also includes an exchange bridge structure formed from magnetic material that connects the islands of the perpendicular magnetic recording layer. Connecting the islands with magnetic material increases exchange coupling between the islands, which makes the islands more magnetically stable.

    摘要翻译: 描述了图案化的磁记录介质和相关的制造方法。 图案化的磁记录介质包括被图案化成多个离散磁岛的垂直磁记录层。 图案化的磁记录介质还包括由连接垂直磁记录层的岛的磁性材料形成的交换桥结构。 用磁性材料连接岛增加了岛之间的交换耦合,这使得岛更加磁稳定。

    MAGNETIC DATA RECORDING SYSTEM WITH IMPROVED SERVO CAPABILITY FOR BIT PATTERNED RECORDING
    8.
    发明申请
    MAGNETIC DATA RECORDING SYSTEM WITH IMPROVED SERVO CAPABILITY FOR BIT PATTERNED RECORDING 有权
    具有改进的服务器能力的磁数据记录系统用于位图记录

    公开(公告)号:US20130163111A1

    公开(公告)日:2013-06-27

    申请号:US13333972

    申请日:2011-12-21

    IPC分类号: G11B21/02 G11B5/60

    摘要: A magnetic data recording system wherein the wherein adjacent track interference during writing is avoided by modulating the size of a write bubble on the magnetic media in response to a position error signal. If the position error signal indicates that the magnetic head is off-track, circuitry within the magnetic data recording system adjusts the size of the write bubble temporarily to prevent the write bubble from encroaching on a neighboring data track. This adjustment of the write bubble can be accomplished by adjusting power to the write head. Adjustment of the write bubble can also be achieved by adjusting power to a magnetic oscillator in a microwave assisted magnetic recording system (MAMR) or adjusting power to a heating element in a thermally assisted magnetic recording system.

    摘要翻译: 一种磁数据记录系统,其中通过响应于位置误差信号调制磁介质上的写入气泡的尺寸来避免写入期间的相邻磁道干扰。 如果位置误差信号表示磁头偏离磁道,则磁数据记录系统内的电路暂时调整写入气泡的大小,以防止写入气泡侵入相邻的数据轨道。 写入气泡的这种调整可以通过调整写入头的功率来实现。 写入气泡的调整也可以通过调节微波辅助磁记录系统(MAMR)中的磁性振荡器的功率或者调整热辅助磁记录系统中的加热元件的功率来实现。

    Write synchronization in patterned magnetic media
    9.
    发明授权
    Write synchronization in patterned magnetic media 有权
    在图案化磁性介质中写入同步

    公开(公告)号:US08213103B2

    公开(公告)日:2012-07-03

    申请号:US12639838

    申请日:2009-12-16

    IPC分类号: G11B5/09

    摘要: Systems and methods for synchronizing write signals are disclosed. In one embodiment, a compensation system is implemented within a disk drive that receives a synchronization signal read from a patterned magnetic disk by a read head. The compensation system processes the synchronization signal to compensate for noise sensed by the read head while a write head writes to the disk based on a write signal. The adjustment module is operable to adjust the write signal based on the processed synchronization signal so that the write signal is synchronized to the pattern on the disk.

    摘要翻译: 公开了用于同步写入信号的系统和方法。 在一个实施例中,补偿系统在磁盘驱动器内实现,其通过读取头接收从图案化的磁盘读取的同步信号。 当写头根据写信号写入磁盘时,补偿系统处理同步信号以补偿由读头读出的噪声。 调整模块可操作以基于所处理的同步信号调整写入信号,使得写入信号与盘上的图案同步。

    WRITE SYNCHRONIZATION IN PATTERNED MAGNETIC MEDIA
    10.
    发明申请
    WRITE SYNCHRONIZATION IN PATTERNED MAGNETIC MEDIA 有权
    图形磁介质中的写同步

    公开(公告)号:US20110141610A1

    公开(公告)日:2011-06-16

    申请号:US12639838

    申请日:2009-12-16

    IPC分类号: G11B21/02

    摘要: Systems and methods for synchronizing write signals are disclosed. In one embodiment, a compensation system is implemented within a disk drive that receives a synchronization signal read from a patterned magnetic disk by a read head. The compensation system processes the synchronization signal to compensate for noise sensed by the read head while a write head writes to the disk based on a write signal. The adjustment module is operable to adjust the write signal based on the processed synchronization signal so that the write signal is synchronized to the pattern on the disk.

    摘要翻译: 公开了用于同步写入信号的系统和方法。 在一个实施例中,补偿系统在磁盘驱动器内实现,其通过读取头接收从图案化的磁盘读取的同步信号。 当写头根据写信号写入磁盘时,补偿系统处理同步信号以补偿由读头读出的噪声。 调整模块可操作以基于所处理的同步信号调整写入信号,使得写入信号与盘上的图案同步。