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1. 发明授权

US08098448B2 Method for setting zone format of a disk for storing data and disk drive 有权
标题翻译：用于设置用于存储数据和磁盘驱动器的磁盘的区域格式的方法
公开(公告)号：US08098448B2
公开(公告)日：2012-01-17
申请号：US12639926
申请日：2009-12-16
申请人： Yoshihiko Maeda , Masaomi Ikeda , Nobuhiro Kuwamura , Toshihiko Tsunokawa , Akira Osaki
发明人： Yoshihiko Maeda , Masaomi Ikeda , Nobuhiro Kuwamura , Toshihiko Tsunokawa , Akira Osaki
IPC分类号： G11B5/09
CPC分类号： G11B20/1258 , G11B2020/1242 , G11B2020/1282 , G11B2020/1292 , G11B2220/2516
摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.
摘要翻译：一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。该方法包括将数据区域划分成具有临时边界的多个区域。该方法还包括确定所选区域的线性记录密度。该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

2. 发明申请

US20110085259A1 METHOD FOR SETTING ZONE FORMAT OF A DISK FOR STORING DATA AND DISK DRIVE 有权
标题翻译：用于设置用于存储数据和磁盘驱动器的磁盘的区域格式的方法
公开(公告)号：US20110085259A1
公开(公告)日：2011-04-14
申请号：US12639926
申请日：2009-12-16
申请人： Yoshihiko MAEDA , Masaomi Ikeda , Nobuhiro Kuwamura , Toshihiko Tsunokawa , Akira Osaki
发明人： Yoshihiko MAEDA , Masaomi Ikeda , Nobuhiro Kuwamura , Toshihiko Tsunokawa , Akira Osaki
IPC分类号： G11B5/09
CPC分类号： G11B20/1258 , G11B2020/1242 , G11B2020/1282 , G11B2020/1292 , G11B2220/2516
摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.
摘要翻译：一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。该方法包括将数据区域划分成具有临时边界的多个区域。该方法还包括确定所选区域的线性记录密度。该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

3. 发明授权

US06927931B2 Magnetic disk drive and method of controlling the same 失效
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US06927931B2
公开(公告)日：2005-08-09
申请号：US10650934
申请日：2003-08-27
申请人： Hiroshi Harata , Atsuo Suga , Yuji Suzuki , Nobuhiro Kuwamura
发明人： Hiroshi Harata , Atsuo Suga , Yuji Suzuki , Nobuhiro Kuwamura
IPC分类号： G11B5/00 , G11B5/012 , G11B5/09 , G11B5/55 , G11B5/82 , G11B19/04 , G11B20/10 , G11B20/12 , G11B5/02
CPC分类号： G11B5/5526 , G11B5/012 , G11B5/09 , G11B5/82 , G11B19/04 , G11B2005/0002 , G11B2005/0005 , G11B2005/001 , G11B2005/0013
摘要： A magnetic head is disposed opposite to a magnetic disk having a first recording area capable of facilitating writing information to the magnetic disk when the surrounding temperature is low, and a second recording area capable of surely holding information written to the magnetic disk when the surrounding temperature is high. Information is written to the first recording area when the surrounding temperature is low and is transferred later to the second recording area.
摘要翻译：磁头与具有第一记录区域的磁盘相对设置，该第一记录区域能够在周围环境温度较低时将信息写入到磁盘;以及第二记录区域，当周围环境温度高。当周围环境温度低时，信息被写入第一记录区域，并被传送到第二记录区域。

4. 发明申请

US20090296260A1 Device and method for specifying control value for controlling clearance between head and disk, and magnetic disk drive device 有权
标题翻译：用于指定用于控制磁头和磁盘之间的间隙的控制值的装置和方法以及磁盘驱动装置
公开(公告)号：US20090296260A1
公开(公告)日：2009-12-03
申请号：US12156092
申请日：2008-05-28
申请人： Yoshihiko Maeda , Takao Matsui , Nobuhiro Kuwamura , Kenichi Kuramoto , Akihiro Sera
发明人： Yoshihiko Maeda , Takao Matsui , Nobuhiro Kuwamura , Kenichi Kuramoto , Akihiro Sera
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/607
摘要： Embodiments of the present invention help to detect contact between a head and a magnetic disk more accurately in specifying a heater power value for adjusting a clearance between a head element portion and the disk. According to one embodiment, a hard disk controller/multiprocessing unit (HDC/MPU) measures amplitudes of read signals in a user data field DATA. A hard disk drive (HDD) fills a gap between servo data with single data sector. The HDC/MPU measures the amplitudes of read signals in each data sector at different heater power values. It determines the heater power value at which contact occurs from the measured values.
摘要翻译：本发明的实施例有助于在确定用于调节头元件部分和盘之间的间隙的加热器功率值时更准确地检测磁头和磁盘之间的接触。根据一个实施例，硬盘控制器/多处理单元（HDC / MPU）测量用户数据字段DATA中的读取信号的幅度。硬盘驱动器（HDD）填充伺服数据与单个数据扇区之间的间隙。 HDC / MPU以不同的加热器功率值测量每个数据扇区中读取信号的幅度。它从测量值确定接触发生的加热器功率值。

5. 发明授权

US07852594B2 Device and method for specifying control value for controlling clearance between head and disk, and magnetic disk drive device 有权
标题翻译：用于指定用于控制磁头和磁盘之间的间隙的控制值的装置和方法以及磁盘驱动装置
公开(公告)号：US07852594B2
公开(公告)日：2010-12-14
申请号：US12156092
申请日：2008-05-28
申请人： Yoshihiko Maeda , Takao Matsui , Nobuhiro Kuwamura , Kenichi Kuramoto , Akihiro Sera
发明人： Yoshihiko Maeda , Takao Matsui , Nobuhiro Kuwamura , Kenichi Kuramoto , Akihiro Sera
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/607
摘要： Embodiments of the present invention help to detect contact between a head and a magnetic disk more accurately in specifying a heater power value for adjusting a clearance between a head element portion and the disk. According to one embodiment, a hard disk controller/multiprocessing unit (HDC/MPU) measures amplitudes of read signals in a user data field DATA. A hard disk drive (HDD) fills a gap between servo data with single data sector. The HDC/MPU measures the amplitudes of read signals in each data sector at different heater power values. It determines the heater power value at which contact occurs from the measured values.
摘要翻译：本发明的实施例有助于在确定用于调节头元件部分和盘之间的间隙的加热器功率值时更准确地检测磁头和磁盘之间的接触。根据一个实施例，硬盘控制器/多处理单元（HDC / MPU）测量用户数据字段DATA中的读取信号的幅度。硬盘驱动器（HDD）填充伺服数据与单个数据扇区之间的间隙。 HDC / MPU以不同的加热器功率值测量每个数据扇区中读取信号的幅度。它从测量值确定接触发生的加热器功率值。

6. 发明授权

US07483230B2 Write-current control chip and magnetic disk drive using the same 失效
标题翻译：写电流控制芯片和磁盘驱动器使用相同
公开(公告)号：US07483230B2
公开(公告)日：2009-01-27
申请号：US11366783
申请日：2006-03-01
申请人： Nobuhiro Kuwamura
发明人： Nobuhiro Kuwamura
IPC分类号： G11B5/02
CPC分类号： G11B5/09 , G11B2005/001
摘要： Embodiments of the present invention provide a write-current control chip capable of effectively preventing adjacent track interference (ATI) that occurs depending on how a magnetic disk drive is used, and to provide a magnetic disk drive using the write-current control chip. In one embodiment, a write-current control chip and a magnetic disk drive using the same are provided. The write-current control chip includes: an acquisition module for acquiring the number of times of write processing in which a magnetic head writes data to a magnetic disk in the magnetic disk drive; a determination module, on the basis of the acquired number of times of write processing, for determining a write-current value used when the magnetic head writes data to the magnetic disk; and an instruction mechanism for instructing the magnetic head to write the data to the magnetic disk by use of the determined write-current value.
摘要翻译：本发明的实施例提供一种写入电流控制芯片，其能够有效地防止根据如何使用磁盘驱动器而发生的相邻磁道干扰（ATI），以及使用写入电流控制芯片来提供磁盘驱动器。在一个实施例中，提供了写入电流控制芯片和使用该写入电流控制芯片的磁盘驱动器。写入电流控制芯片包括：获取模块，用于获取写入处理的次数，其中磁头将数据写入磁盘驱动器中的磁盘; 确定模块，基于所获取的写入处理次数，用于确定磁头将数据写入磁盘时使用的写入电流值; 以及指令机构，用于通过使用确定的写入电流值来指示磁头将数据写入磁盘。

7. 发明授权

US07177979B2 Method for preventing data loss due to repeated writes to a given track on a magnetic disk drive 有权
标题翻译：用于防止由于重复写入到磁盘驱动器上的给定轨道而导致的数据丢失的方法
公开(公告)号：US07177979B2
公开(公告)日：2007-02-13
申请号：US10674763
申请日：2003-09-29
申请人： Nobuhiro Kuwamura
发明人： Nobuhiro Kuwamura
IPC分类号： G06F12/00 , G11B15/04
CPC分类号： G11B19/04 , G11B5/09
摘要： Where a leakage magnetic field deletes data on adjacent tracks gradually, such deletion is compensated so as to prevent data errors from occurring. A magnetic disk device includes one or more magnetic disks, one or more magnetic heads, and a write and read circuit for writing or reading data, and writes or reads the data on tracks on the magnetic disks. The number of writes of the data on a given track is acquired. If the number of writes reaches a predetermined number, the data on the tracks adjacent to a given track is read out once and, then, the data is rewritten on the adjacent tracks. Further, when the data is written on the tracks, the data is written on alternate physical tracks and every other track is skipped, and after the data is written on half of all tracks, the data is written on the skipped tracks.
摘要翻译：在泄漏磁场逐渐删除相邻轨道上的数据的情况下，补偿这种删除以防止发生数据错误。磁盘装置包括一个或多个磁盘，一个或多个磁头，以及用于写入或读取数据的写入和读取电路，并将数据写入或读取到磁盘上的磁道上。获取给定轨道上数据的写入次数。如果写入次数达到预定数量，则与一个给定的轨道相邻的轨道上的数据被读出一次，然后数据被重写在相邻的轨道上。此外，当将数据写入轨道时，数据被写在备用物理轨道上，并且跳过每隔一个轨道，并且在将数据写入所有轨道的一半之后，数据被写在跳过的轨道上。

8. 发明授权

US08068299B2 Disk drive device and data rewrite method thereof 有权
标题翻译：磁盘驱动装置及其数据重写方法
公开(公告)号：US08068299B2
公开(公告)日：2011-11-29
申请号：US12079496
申请日：2008-03-26
申请人： Toshihiko Tsunokawa , Nobuhiro Kuwamura , Masutaka Harada , Yuhji Yokoe , Takao Matsui
发明人： Toshihiko Tsunokawa , Nobuhiro Kuwamura , Masutaka Harada , Yuhji Yokoe , Takao Matsui
IPC分类号： G11B5/09 , G11B27/36
CPC分类号： G11B19/041 , G11B19/06
摘要： Embodiments of the present invention help to reduce the occurrence of read hard errors in a hard disk drive (HDD). According to one embodiment, a HDD rewrites data on all data tracks of a block M when the number of write operations to the block consisting of continuous plural data tracks. The HDD further rewrites data on continuous plural data tracks and adjacent to the block. Since the number of write operations is counted every block, a memory area to register the number of write operations can be reduced.
摘要翻译：本发明的实施例有助于减少硬盘驱动器（HDD）中读取硬错误的发生。根据一个实施例，当对由连续的多个数据轨道组成的块的写入操作的数量时，HDD重写块M的所有数据轨道上的数据。 HDD进一步重写连续多个数据磁道上的数据，并且与块相邻。由于每个块对写入操作的数量进行计数，因此可以减少用于注册写入操作次数的存储区域。

9. 发明申请

US20080239901A1 Disk drive device and data rewrite method thereof 有权
标题翻译：磁盘驱动装置及其数据重写方法
公开(公告)号：US20080239901A1
公开(公告)日：2008-10-02
申请号：US12079496
申请日：2008-03-26
申请人： Toshihiko Tsunokawa , Nobuhiro Kuwamura , Masutaka Harada , Yuhji Yokoe , Takao Matsui
发明人： Toshihiko Tsunokawa , Nobuhiro Kuwamura , Masutaka Harada , Yuhji Yokoe , Takao Matsui
IPC分类号： G11B5/58
CPC分类号： G11B19/041 , G11B19/06
摘要： Embodiments of the present invention help to reduce the occurrence of read hard errors in a hard disk drive (HDD). According to one embodiment, a HDD rewrites data on all data tracks of a block M when the number of write operations to the block consisting of continuous plural data tracks. The HDD further rewrites data on continuous plural data tracks and adjacent to the block. Since the number of write operations is counted every block, a memory area to register the number of write operations can be reduced.
摘要翻译：本发明的实施例有助于减少硬盘驱动器（HDD）中读取硬错误的发生。根据一个实施例，当对由连续的多个数据轨道组成的块的写入操作的数量时，HDD重写块M的所有数据轨道上的数据。 HDD进一步重写连续多个数据磁道上的数据，并且与块相邻。由于每个块对写入操作的数量进行计数，因此可以减少用于注册写入操作次数的存储区域。

10. 发明申请

US20060198041A1 Write-current control chip and magnetic disk drive using the same 失效
公开(公告)号：US20060198041A1
公开(公告)日：2006-09-07
申请号：US11366783
申请日：2006-03-01
申请人： Nobuhiro Kuwamura
发明人： Nobuhiro Kuwamura
IPC分类号： G11B5/02 , G11B5/09
CPC分类号： G11B5/09 , G11B2005/001
摘要： Embodiments of the present invention provide a write-current control chip capable of effectively preventing adjacent track interference (ATI) that occurs depending on how a magnetic disk drive is used, and to provide a magnetic disk drive using the write-current control chip. In one embodiment, a write-current control chip and a magnetic disk drive using the same are provided. The write-current control chip includes: an acquisition module for acquiring the number of times of write processing in which a magnetic head writes data to a magnetic disk in the magnetic disk drive; a determination module, on the basis of the acquired number of times of write processing, for determining a write-current value used when the magnetic head writes data to the magnetic disk; and an instruction mechanism for instructing the magnetic head to write the data to the magnetic disk by use of the determined write-current value.

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