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1. 发明授权

US09728215B2 Magnetic disk apparatus and data recording method 有权
公开(公告)号：US09728215B2
公开(公告)日：2017-08-08
申请号：US15088952
申请日：2016-04-01
申请人： Kabushiki Kaisha Toshiba
发明人： Masahiro Kanamaru , Kazuto Kashiwagi , Takeyori Hara
IPC分类号： G11B19/04 , G11B5/596 , G11B27/36 , G11B20/10 , G11B20/18 , G11B5/012 , G11B20/12
CPC分类号： G11B5/59627 , G11B5/012 , G11B5/596 , G11B5/59688 , G11B19/041 , G11B20/10009 , G11B20/10305 , G11B20/10388 , G11B20/1217 , G11B20/1889 , G11B27/36 , G11B2020/10898 , G11B2020/1238 , G11B2020/1292 , G11B2020/1869
摘要： A magnetic disk apparatus of one of the embodiments stores read position dependency information on read signal quality of a data region at a first track and measures the read signal quality at a predetermined radial position in a second data region of a second track different from the first track. A positioning error of the second data region is determined based on the read position dependency information and the read signal quality at the predetermined radial position. Data is recorded in a recording target data region in a shingled recording so as to prevent data written in the second data region from being overwritten by data in a recording target data region adjacent to the second data region by using the determined positioning error.

2. 发明授权

US08896959B1 Magnetic disk apparatus and data recording method 有权
标题翻译：磁盘装置和数据记录方法
公开(公告)号：US08896959B1
公开(公告)日：2014-11-25
申请号：US14275614
申请日：2014-05-12
申请人： Kabushiki Kaisha Toshiba
发明人： Kazuto Kashiwagi , Takeyori Hara , Takayuki Kawabe , Masahiro Kanamaru , Takuji Matsuzawa
IPC分类号： G11B21/02 , G11B5/02 , G11B5/012 , G11B5/56
CPC分类号： G11B5/56 , G11B5/012 , G11B5/5582 , G11B5/59627
摘要： According to one embodiment, a magnetic disk apparatus includes a magnetic disk having a plurality of tracks, each of the plurality of tracks having a plurality of servo areas and a plurality of data areas, the plurality of servo areas and the plurality of data areas being alternately arranged respectively, a magnetic head, and a processor. When a plurality of positioning errors related to one servo area are present in the first track, the processor updates the positioning error of the one servo area with a positioning error closest to a second track that is next to the first track. The processor writes data in the second track by a shingled write recording system by using the updated positioning error.
摘要翻译：根据一个实施例，磁盘装置包括具有多个磁道的磁盘，多个磁道中的每一个具有多个伺服区域和多个数据区域，多个伺服区域和多个数据区域是分别交替布置有磁头和处理器。当在第一轨道中存在与一个伺服区域相关的多个定位误差时，处理器以最靠近第一轨道的第二轨道的定位误差更新一个伺服区域的定位误差。处理器通过使用更新的定位错误，通过封闭的写入记录系统将数据写入第二个轨道。

3. 发明申请

US20150294690A1 MAGNETIC DISK APPARATUS AND DATA RECORDING METHOD 审中-公开
标题翻译：磁盘设备和数据记录方法
公开(公告)号：US20150294690A1
公开(公告)日：2015-10-15
申请号：US14477307
申请日：2014-09-04
申请人： Kabushiki Kaisha Toshiba
发明人： Masahiro Kanamaru , Kazuto Kashiwagi , Takeyori Hara
IPC分类号： G11B27/36 , G11B20/18 , G11B20/10
CPC分类号： G11B5/59627 , G11B5/012 , G11B5/596 , G11B5/59688 , G11B19/041 , G11B20/10009 , G11B20/10305 , G11B20/10388 , G11B20/1217 , G11B20/1889 , G11B27/36 , G11B2020/10898 , G11B2020/1238 , G11B2020/1292 , G11B2020/1869
摘要： A magnetic disk apparatus of one of the embodiments stores read position dependency information on read signal quality of a data region at a first track and measures the read signal quality at a predetermined radial position in a second data region of a second track different from the first track. A positioning error of the second data region is determined based on the read position dependency information and the read signal quality at the predetermined radial position. Data is recorded in a recording target data region in a singled recording so as to prevent data written in the second data region from being overwritten by data in a recording target data region adjacent to the second data region by using the determined positioning error.
摘要翻译：实施例之一的磁盘装置将读取位置相关性信息存储在第一磁道上的数据区域的读取信号质量上，并且测量与第一磁道不同的第二磁道的第二数据区域中的预定径向位置处的读取信号质量跟踪。基于读取的位置依赖性信息和在预定径向位置处的读取信号质量来确定第二数据区域的定位误差。通过使用所确定的定位误差，将数据记录在单独记录中的记录目标数据区域中，以防止写入第二数据区域中的数据被与第二数据区域相邻的记录目标数据区域中的数据覆盖。

4. 发明授权

US09105277B1 Controller, disk drive, and read processing method 有权
标题翻译：控制器，磁盘驱动器和读取处理方法
公开(公告)号：US09105277B1
公开(公告)日：2015-08-11
申请号：US14481187
申请日：2014-09-09
申请人： Kabushiki Kaisha Toshiba
发明人： Kohsuke Harada , Akihiro Yamazaki , Nobuhiro Maeto , Kazuto Kashiwagi , Naoki Tagami , Masahiro Kanamaru , Tomokazu Okubo
IPC分类号： G11B5/02 , G11B27/36 , G11B5/012 , G11B5/596
CPC分类号： G11B5/012 , G11B20/10009 , G11B20/10046 , G11B20/10268
摘要： According to one embodiment, an equalizer is configured to obtain a noise included in a first correction signal by using a noise component of a first track and a noise interference component from a second track. The equalizer is configured to correct the first correction signal by using the obtained noise. The equalizer is configured to equalize the corrected first correction signal. The noise component of the first track is calculated based on a noise component of the first track at a first timing and a noise component of the first track at a second timing earlier than the first timing. The noise interference component from the second track is calculated based on a noise interference component from the second track at the first timing and a noise interference component from the second track at the second timing. The decoder is configured to decode the equalized first correction signal.
摘要翻译：根据一个实施例，均衡器被配置为通过使用来自第二轨道的第一轨道的噪声分量和噪声干扰分量来获得包括在第一校正信号中的噪声。均衡器被配置为通过使用所获得的噪声来校正第一校正信号。均衡器被配置为均衡校正的第一校正信号。第一轨道的噪声分量基于第一定时处的第一轨道的噪声分量和比第一定时早的第二定时处的第一轨道的噪声分量来计算。基于来自第一定时的第二轨道的噪声干扰分量和在第二定时处的来自第二轨道的噪声干扰分量来计算来自第二轨道的噪声干扰分量。解码器被配置为对均衡的第一校正信号进行解码。

5. 发明授权

US09064522B2 Stamper and method of manufacturing bit patterned medium using stamper 有权
标题翻译：压模和使用压模制造位图案化介质的方法
公开(公告)号：US09064522B2
公开(公告)日：2015-06-23
申请号：US14167464
申请日：2014-01-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Masahiro Kanamaru , Yoshiyuki Kamata , Ryosuke Yamamoto , Takeshi Okino , Akira Kikitsu , Katsuya Sugawara , Yasuaki Ootera , Tomoyuki Maeda
IPC分类号： G11B5/09 , G11B5/82 , G11B5/855 , G11B5/74 , B29C33/00 , G03F7/00 , H01L21/768 , B29C33/38 , B29C45/37 , B29C33/42
CPC分类号： G11B5/855 , B29C33/00 , B29C33/3857 , B29C45/372 , B29C2033/426 , G03F7/0002 , G11B5/746 , G11B5/82 , H01L21/76817
摘要： A stamper of an embodiment includes: a base portion having a main surface; and a plurality of guides arranged on the main surface in mutually different first and second directions and serving as references of arrangement of a plurality of self-assembled dots. A distance between the guides in a third direction is within a range of an integer m1 ±0.05 times of a pitch of the plural self-assembled dots. The third direction corresponds to a third vector obtained by combining a first vector corresponding to the arrangement of the guides in the first direction and a second vector corresponding to the arrangement of the guides in the second direction. A distance between the plural guides in the first direction falls out of a range of an integer m2 ±0.15 times of the pitch of the plural self-assembled dots.
摘要翻译：实施例的压模包括：具有主表面的基部; 以及在相互不同的第一和第二方向上布置在主表面上的多个引导件，并且用作多个自组装点的布置的参考。导向件之间的距离在第三方向上在多个自组装点的间距的整数m1±0.05倍的范围内。第三方向对应于通过组合与第一方向上的引导件的布置相对应的第一矢量和对应于第二方向上的引导件的布置的第二矢量而获得的第三矢量。第一方向上的多个引导件之间的距离落在多个自组装点的间距的整数m2±0.15倍的范围内。

6. 发明申请

US20160217815A1 MAGNETIC DISK APPARATUS AND DATA RECORDING METHOD 审中-公开
标题翻译：磁盘设备和数据记录方法
公开(公告)号：US20160217815A1
公开(公告)日：2016-07-28
申请号：US15088952
申请日：2016-04-01
申请人： Kabushiki Kaisha Toshiba
发明人： Masahiro Kanamaru , Kazuto Kashiwagi , Takeyori Hara
IPC分类号： G11B5/596 , G11B20/12
CPC分类号： G11B5/59627 , G11B5/012 , G11B5/596 , G11B5/59688 , G11B19/041 , G11B20/10009 , G11B20/10305 , G11B20/10388 , G11B20/1217 , G11B20/1889 , G11B27/36 , G11B2020/10898 , G11B2020/1238 , G11B2020/1292 , G11B2020/1869
摘要： A magnetic disk apparatus of one of the embodiments stores read position dependency information on read signal quality of a data region at a first track and measures the read signal quality at a predetermined radial position in a second data region of a second track different from the first track. A positioning error of the second data region is determined based on the read position dependency information and the read signal quality at the predetermined radial position. Data is recorded in a recording target data region in a shingled recording so as to prevent data written in the second data region from being overwritten by data in a recording target data region adjacent to the second data region by using the determined positioning error.
摘要翻译：实施例之一的磁盘装置将读取位置相关性信息存储在第一磁道上的数据区域的读取信号质量上，并且测量与第一磁道不同的第二磁道的第二数据区域中的预定径向位置处的读取信号质量跟踪。基于读取的位置依赖性信息和在预定径向位置处的读取信号质量来确定第二数据区域的定位误差。数据被记录在带状闪烁的记录中的记录目标数据区域中，以便通过使用确定的定位误差来防止写入第二数据区域中的数据被与第二数据区域相邻的记录目标数据区域中的数据覆盖。

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