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1.发明授权
公开(公告)号：US5786952A
公开(公告)日：1998-07-28
申请号：US562203
申请日：1995-11-22
申请人： Masuo Umemoto , Yoshihiro Shiroishi , Reijiro Tsuchiya , Kyo Akagi , Takehiko Hamaguchi , Takashi Kawabe , Atsushi Saito , Kouichirou Wakabayashi
发明人： Masuo Umemoto , Yoshihiro Shiroishi , Reijiro Tsuchiya , Kyo Akagi , Takehiko Hamaguchi , Takashi Kawabe , Atsushi Saito , Kouichirou Wakabayashi
CPC分类号： G11B5/59633 , G11B20/10009 , G11B5/012 , G11B5/09 , G11B5/4886 , G11B5/4976 , G11B5/5526 , G11B5/035
摘要： A magnetic digital storage method and system which can improve a recording density and can reduce a cross-talk upon reproducing. An inputted high-speed digital signal is converted to a plurality of low-speed digital signal sequences by a recording circuit and each of the low-speed signal sequence is recorded onto a plurality of adjacent recorded tracks of a recording medium by integrated parallel recording heads. One servo signal is commonly recorded to the plurality of recorded tracks. Further, when recording the digital signal to the adjacent recorded tracks of the recording medium, a delay of a signal that is applied to each recording head is adjusted such that the phases of magnetic transition points given by the recording signal in the adjacent recorded tracks are not identical in the circumferential direction.
摘要翻译： 一种磁数字存储方法和系统，其可以提高记录密度并且可以在再现时减少串扰。 输入的高速数字信号通过记录电路转换成多个低速数字信号序列，并且每个低速信号序列通过集成并行记录头记录在记录介质的多个相邻的记录磁道上 。 一个伺服信号通常记录到多个记录的轨道。 此外，当将数字信号记录到记录介质的相邻记录磁道时，调整施加到每个记录头的信号的延迟，使得由相邻记录磁道中的记录信号给出的磁转变点的相位为 在圆周方向上不相同。
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公开(公告)号：US6130797A
公开(公告)日：2000-10-10
申请号：US913835
申请日：1997-09-16
申请人： Kyo Akagi , Yoshihiro Shiroishi , Reijiro Tsuchiya , Takehiko Hamaguchi , Masuo Umemoto , Mikio Suzuki , Takashi Kawabe , Katsuro Watanabe , Kiyoshi Matsumoto , Atsushi Saito , Kouichirou Wakabayashi , Yosuke Hamada
发明人： Kyo Akagi , Yoshihiro Shiroishi , Reijiro Tsuchiya , Takehiko Hamaguchi , Masuo Umemoto , Mikio Suzuki , Takashi Kawabe , Katsuro Watanabe , Kiyoshi Matsumoto , Atsushi Saito , Kouichirou Wakabayashi , Yosuke Hamada
IPC分类号： G11B5/596 , G11B7/095 , G11B11/105
CPC分类号： G11B5/59655 , G11B11/10576 , G11B5/59627 , G11B11/10578 , G11B7/0953
摘要： Virtual tracks are set so that the rotation center of a magnetic recording medium or the vicinity of the rotation center coincides with the track center of the data information, and positioning servo control is performed. Thus, since it is not necessary to faithfully follow the track center line specified by the servo information that is previously recorded on the magnetic recording medium or magnetooptical recording medium, a vibration is not easily caused in synchronism with the rotation. Therefore, when the rotation center and the pattern center are deviated from each other, since a vibration is not caused in synchronism with the rotation, the magnetic head of the magnetic recorder or the magnetooptical head of the magnetooptical recorder is able to follow tracks with higher precision. Accordingly, the recording density can be increased.
摘要翻译： PCT No.PCT / JP95 / 00474 Sec。 371日期1997年9月17日 102（e）1997年9月17日PCT 1995年3月17日PCT公布。 公开号WO96 / 29700 日期1996年9月26日设置虚拟磁道，使得磁记录介质的旋转中心或旋转中心附近与数据信息的轨道中心一致，并执行定位伺服控制。 因此，由于不需要忠实地跟踪由先前记录在磁记录介质或磁光记录介质上的伺服信息指定的轨道中心线，因此不易与旋转同步地产生振动。 因此，当旋转中心和图案中心彼此偏离时，由于不会与旋转同步地产生振动，磁记录器的磁头或磁光记录器的磁光头能够跟随具有更高的轨迹 精确。 因此，可以提高记录密度。
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公开(公告)号：US06483660B1
公开(公告)日：2002-11-19
申请号：US08992083
申请日：1997-12-17
IPC分类号： G11B554
CPC分类号： G11B25/043
摘要： A magnetic disk unit of form factor size with a low power consumption, a short average seek time and a high performance. The unit includes at least two spindles for supporting and rotating magnetic disks. Specifically, two 1.3-inch disks, three 1.0-inch disks or four 0.7-inch disks are arranged in a housing originally intended for a 1.8-inch magnetic disk. The unit further includes a device for writing and reading information while selecting a spindle. The card-type disk unit thus can be reduced in thickness, with a smaller power consumption for starting the disk rotation and further with an improved average seek velocity.
摘要翻译： 具有功耗低，平均寻道时间短，性能好的外形尺寸的磁盘单元。 该单元包括用于支撑和旋转磁盘的至少两个主轴。 具体来说，两个1.3英寸磁盘，三个1.0英寸磁盘或四个0.7英寸磁盘布置在原来用于1.8英寸磁盘的外壳中。 该单元还包括用于在选择主轴时写入和读取信息的装置。 因此，卡型盘单元的厚度可以减小，具有较小的功率消耗用于启动盘旋转，并且还具有改进的平均寻道速度。
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公开(公告)号：US07184236B2
公开(公告)日：2007-02-27
申请号：US10944845
申请日：2004-09-21
CPC分类号： G11B20/1252 , G11B5/012 , G11B5/5582 , G11B5/59611 , G11B5/59655 , G11B5/59694 , G11B20/10 , G11B27/3027 , G11B2020/1232 , G11B2020/1238 , G11B2020/1267 , G11B2020/1287 , G11B2220/20 , G11B2220/2516
摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.
摘要翻译： 一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。 可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。 微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。 微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。 还可以提供加速度传感器来检测更大的外部冲击。 通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。
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公开(公告)号：US06822818B2
公开(公告)日：2004-11-23
申请号：US09919915
申请日：2001-08-02
IPC分类号： G11B509
CPC分类号： G11B20/1252 , G11B5/012 , G11B5/5582 , G11B5/59611 , G11B5/59655 , G11B5/59694 , G11B20/10 , G11B27/3027 , G11B2020/1232 , G11B2020/1238 , G11B2020/1267 , G11B2020/1287 , G11B2220/20 , G11B2220/2516
摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.
摘要翻译： 一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。 可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。 微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。 微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。 还可以提供加速度传感器来检测更大的外部冲击。 通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。
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6.发明申请Method of servo pattern writing on recording surface and data storage device 审中-公开记录表面和数据存储设备上伺服模式写入的方法公开(公告)号：US20070247741A1
公开(公告)日：2007-10-25
申请号：US11788490
申请日：2007-04-20
申请人： Kyo Akagi , Takehiko Hamaguchi , Atsushi Takeichi
发明人： Kyo Akagi , Takehiko Hamaguchi , Atsushi Takeichi
CPC分类号： G11B5/59655 , G11B5/024
摘要： In an embodiment of the present invention, with Self Servo Write (SSW), a head slider is used to perform AC erase to a recording surface of a magnetic disk. The AC erase is performed asynchronously to every track. A frequency for use with AC erase, i.e., a frequency of an AC erase pattern is three times or higher than a burst frequency of a product servo pattern or a burst frequency of a radial pattern. By satisfying such requirements, for the magnetic disk of vertical magnetic recording, it becomes possible to substantially stop adversely affecting pattern reading in an AC erase area.
摘要翻译： 在本发明的一个实施例中，使用自动伺服写入（SSW），磁头滑动器用于对磁盘的记录表面执行AC擦除。 AC擦除与每个轨道异步执行。 用于AC擦除的频率，即AC擦除模式的频率是产品伺服模式的突发频率或径向图案的突发频率的三倍或更高。 通过满足这种要求，对于垂直磁记录磁盘，可以基本上停止对交流擦除区域中的图形读取的不利影响。
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公开(公告)号：US20050036226A1
公开(公告)日：2005-02-17
申请号：US10944845
申请日：2004-09-21
IPC分类号： G11B5/012 , G11B5/55 , G11B5/596 , G11B20/10 , G11B20/12 , G11B21/10 , G11B27/30 , G11B19/04 , G11B21/02 , G11B27/36
CPC分类号： G11B20/1252 , G11B5/012 , G11B5/5582 , G11B5/59611 , G11B5/59655 , G11B5/59694 , G11B20/10 , G11B27/3027 , G11B2020/1232 , G11B2020/1238 , G11B2020/1267 , G11B2020/1287 , G11B2220/20 , G11B2220/2516
摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.
摘要翻译： 一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。 可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。 微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。 微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。 还可以提供加速度传感器来检测更大的外部冲击。 通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。
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公开(公告)号：US07116508B2
公开(公告)日：2006-10-03
申请号：US11044298
申请日：2005-01-28
申请人： Kyo Akagi , Takashi Yamaguchi , Koki Uefune , Motoyasu Tsunoda , Atsushi Saito
发明人： Kyo Akagi , Takashi Yamaguchi , Koki Uefune , Motoyasu Tsunoda , Atsushi Saito
CPC分类号： G11B5/012 , G11B17/0402 , G11B17/0407 , G11B19/04 , G11B2005/001
摘要： A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.
摘要翻译： 磁盘装置具有：在基板上形成有磁性膜的磁盘; 用于旋转磁盘的主轴电机; 用于在/从磁盘读/写信息的磁头; 用于支撑磁头的支撑构件; 用于将磁头移动到磁盘上的预定位置的驱动机构; 用于使磁头能够从/从磁盘写入/读取信息的磁性写入/读取电路; 用于发送/接收用于将信息控制到另一个信息处理装置的信号的接口，用于检测磁盘装置是否正在运行的装置; 以及基于检测装置的检测结果来锁定磁盘装置的可动部的机构。
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公开(公告)号：US06987635B2
公开(公告)日：2006-01-17
申请号：US10383056
申请日：2003-03-07
申请人： Kyo Akagi , Kouki Uefune , Naoki Satoh , Terumi Takashi , Atsushi Saito
发明人： Kyo Akagi , Kouki Uefune , Naoki Satoh , Terumi Takashi , Atsushi Saito
IPC分类号： G11B15/18
摘要： In a magnetic disk apparatus which is removably mounted or embedded to a host apparatus and intermittently accessed for recording/reproducing data, a RAM contained in the host apparatus is utilized for a portion or entirety of a buffer RAM for use in the intermittent access to accomplish a reduction in size and cost of the magnetic disk apparatus. In addition, the magnetic disk apparatus is controlled to rotate a magnetic disk at a variable rotational speed, and operated at a rotational speed at which the total power consumption is minimized in accordance with the capacity of the utilized buffer RAM and whether an access is made for recording or reproduction, thereby improving a power saving effect.
摘要翻译： 在可移动地安装或嵌入到主机设备中并间歇地访问用于记录/再现数据的磁盘装置中，包含在主机装置中的RAM用于间歇访问中使用的缓冲RAM的一部分或全部以完成 磁盘装置的尺寸和成本的减小。 此外，磁盘装置被控制成以可变转速旋转磁盘，并且以根据所使用的缓冲RAM的容量的总功耗最小化的转速进行操作，以及是否进行访问 用于记录或再现，从而提高节电效果。
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公开(公告)号：US06862153B2
公开(公告)日：2005-03-01
申请号：US09901889
申请日：2001-07-11
申请人： Kyo Akagi , Takashi Yamaguchi , Koki Uefune , Motoyasu Tsunoda , Atsushi Saito
发明人： Kyo Akagi , Takashi Yamaguchi , Koki Uefune , Motoyasu Tsunoda , Atsushi Saito
CPC分类号： G11B5/012 , G11B17/0402 , G11B17/0407 , G11B19/04 , G11B2005/001
摘要： A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.
摘要翻译： 磁盘装置具有：在基板上形成有磁性膜的磁盘; 用于旋转磁盘的主轴电机; 用于在/从磁盘读/写信息的磁头; 用于支撑磁头的支撑构件; 用于将磁头移动到磁盘上的预定位置的驱动机构; 用于使磁头能够从/从磁盘写入/读取信息的磁性写入/读取电路; 用于发送/接收用于将信息控制到另一个信息处理装置的信号的接口，用于检测磁盘装置是否正在运行的装置; 以及基于检测装置的检测结果来锁定磁盘装置的可动部的机构。
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