利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.014 秒)

    Magnetic storage apparatus using a magnetoresistive element
    1.
    发明授权
    Magnetic storage apparatus using a magnetoresistive element 失效
    使用磁阻元件的磁存储装置

    公开(公告)号：US06512648B1

    公开(公告)日：2003-01-28

    申请号：US09634994

    申请日：2000-08-08

    申请人： Reijiro Tsuchiya ,  Mikio Suzuki

    发明人： Reijiro Tsuchiya ,  Mikio Suzuki

    IPC分类号： G11B503

    CPC分类号： G11B5/02 ,  G11B5/00813 ,  G11B5/012 ,  G11B5/035 ,  G11B2005/0008 ,  G11B2005/0018

    摘要： A magnetic storage apparatus exploits the inherent characteristics of a magnetoresistive element to improve the performance of a magnetic head employing the element. Variations in element height or element thickness of the magnetoresistive element are considered in the selection of a sense current appropriate to the element size, by measuring the voltage between the terminals of the magnetoresistive head and controlling the sense current so that the output reference voltage approaches a predetermined value. In another embodiment, the sense current is controlled so that the voltage amplitude or a reference amplitude are set to a predetermined value. In both embodiments, a conversion table is preferably used to relate voltage amplitudes with sense currents, whereby an appropriate sense current is selected based upon the voltage amplitude.

    摘要翻译： 磁存储装置利用磁阻元件的固有特性来改善使用元件的磁头的性能。 通过测量磁阻磁头的端子之间的电压并控制感测电流，使得输出参考电压接近于零，从而在选择适合于元件尺寸的感测电流时考虑磁阻元件的元件高度或元件厚度的变化 预定值。 在另一个实施例中，控制感测电流使得电压幅度或参考幅度被设置为预定值。 在两个实施例中，优选地使用转换表来将电压幅度与感测电流相关联，由此基于电压幅度来选择适当的感测电流。

    Storage apparatus using a magnetoresistive head that employs a sense current selected from plural predetermined sense currents
    3.
    发明授权
    Storage apparatus using a magnetoresistive head that employs a sense current selected from plural predetermined sense currents 失效
    使用采用选自多个预定感测电流的感测电流的磁阻头的存储装置

    公开(公告)号：US6111715A

    公开(公告)日：2000-08-29

    申请号：US5008

    申请日：1998-01-09

    申请人： Reijiro Tsuchiya ,  Mikio Suzuki

    发明人： Reijiro Tsuchiya ,  Mikio Suzuki

    IPC分类号： G11B5/00 ,  G11B5/008 ,  G11B5/012 ,  G11B5/02 ,  G11B5/035 ,  G11B5/03 ,  G11B15/12

    CPC分类号： G11B5/02 ,  G11B5/00813 ,  G11B5/012 ,  G11B5/035 ,  G11B2005/0008 ,  G11B2005/0018

    摘要： A magnetic storage apparatus exploits the inherent characteristics of a magnetoresistive element to improve the performance of a magnetic head employing the element. Variations in element height or element thickness of the magnetoresistive element are considered in the selection of a sense current appropriate to the element size, by measuring the voltage between the terminals of the magnetoresistive head and controlling the sense current so that the output reference voltage approaches a predetermined value. In another embodiment, the sense current is controlled so that the voltage amplitude or a reference amplitude are set to a predetermined value. In both embodiments, a conversion table is preferably used to relate voltage amplitudes with sense currents, whereby an appropriate sense current is selected based upon the voltage amplitude.

    摘要翻译： 磁存储装置利用磁阻元件的固有特性来改善使用元件的磁头的性能。 通过测量磁阻磁头的端子之间的电压并控制感测电流，使得输出参考电压接近于零，从而在选择适合于元件尺寸的感测电流时考虑磁阻元件的元件高度或元件厚度的变化 预定值。 在另一个实施例中，控制感测电流使得电压幅度或参考幅度被设置为预定值。 在两个实施例中，优选地使用转换表来将电压幅度与感测电流相关联，由此基于电压幅度来选择适当的感测电流。

    Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element
    5.
    发明授权
    Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element 失效
    复合磁头布置成使得再现元件不与记录元件的极重叠

    公开(公告)号：US07271970B2

    公开(公告)日：2007-09-18

    申请号：US10964698

    申请日：2004-10-15

    申请人： Reijiro Tsuchiya

    发明人： Reijiro Tsuchiya

    IPC分类号： G11B15/12

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/2652 ,  G11B5/3103 ,  G11B5/3909 ,  G11B5/3945 ,  G11B5/3948 ,  G11B5/3961 ,  G11B5/3967 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4984 ,  G11B20/18 ,  G11B2005/001 ,  G11B2005/0016 ,  G11B2005/3996 ,  G11B2020/183

    摘要： A conventional magnetic head has a structure, in which a MR element and a recording element are stacked. The influence of a recording magnetic field on the magnetically sensitive portion of a reproduction element is lessened and the performance of the MR element is stabilized. Also, the reliability of the magnetic disk drive using a MR element is enhanced. The magnetic disk drive uses a composite magnet head, which has a plurality of reproduction elements arranged such that the magnetically sensitive layer of a reproduction element of the composite magnetic head does not overlap with the normal direction projection of the recording element, and which lessens the influence of a recording magnetic field on the magnetically sensitive portion of each reproduction element.

    摘要翻译： 传统的磁头具有堆叠MR元件和记录元件的结构。 记录磁场对再现元件的磁敏部分的影响减小，并且MR元件的性能稳定。 此外，使用MR元件的磁盘驱动器的可靠性增强。 磁盘驱动器使用复合磁头，其具有多个再现元件，其布置成使得复合磁头的再现元件的磁敏层不与记录元件的法线方向投影重叠，并且减小了 记录磁场对每个再现元件的磁敏部分的影响。

    Magnetic recording disk drive
    8.
    发明授权
    Magnetic recording disk drive 有权
    磁记录磁盘驱动器

    公开(公告)号：US06879460B2

    公开(公告)日：2005-04-12

    申请号：US10681211

    申请日：2003-10-09

    申请人： Futoshi Tomiyama ,  Takehiko Hamaguchi ,  Toru Matsushita ,  Hideki Zaitsu ,  Reijiro Tsuchiya ,  Hisashi Takano

    发明人： Futoshi Tomiyama ,  Takehiko Hamaguchi ,  Toru Matsushita ,  Hideki Zaitsu ,  Reijiro Tsuchiya ,  Hisashi Takano

    IPC分类号： G11B5/09 ,  G11B5/55 ,  G11B5/56 ,  G11B5/596 ,  G11B15/04 ,  G11B21/02 ,  G11B21/10

    CPC分类号： G11B5/5526 ,  G11B5/59633

    摘要： A magnetic recording disk drive can prevent the deterioration of the head off-track characteristics and the reduction of the drive performance even when an erase band asymmetry resulting from a skew angle exists. A write inhibit slice value for an inner peripheral side offset is made smaller than a write inhibit slice value for an outer peripheral side offset at a position where an erase band on the inner peripheral side is greater than an erase band on the outer peripheral side, so that the adjacent track on the outer peripheral side cannot easily erase a data track. On the contrary, the inner periphery and the outer periphery are paraphrased at a position where the erase band on the outer peripheral side is greater than the erase band on the inner peripheral side.

    摘要翻译： 磁记录盘驱动器即使当存在由倾斜角度导致的擦除带不对称性时，也可以防止磁头偏离磁道特性的恶化和驱动性能的降低。 使内周侧偏移的写禁止限幅值小于在内周侧的擦除频带大于外周侧的擦除频带的位置处的外周侧偏移的写禁止限幅值， 使得外周侧的相邻轨道不能容易地擦除数据轨道。 相反，内周侧和外周侧在外周侧的擦除带大于内周侧的擦除带的位置被释义。

    Magnetic disk device and automatic adaptation method of its parameter
    9.
    发明授权
    Magnetic disk device and automatic adaptation method of its parameter 失效
    磁盘装置及其参数的自动适应方法

    公开(公告)号：US06452737B2

    公开(公告)日：2002-09-17

    申请号：US09790877

    申请日：2001-02-23

    申请人： Tetsuya Makiura ,  Reijiro Tsuchiya

    发明人： Tetsuya Makiura ,  Reijiro Tsuchiya

    IPC分类号： G11B5035

    CPC分类号： G11B19/04 ,  G11B5/012 ,  G11B5/035 ,  G11B20/10009 ,  G11B20/1816

    摘要： In a magnetic disk device, a deterioration of performance caused by an environmental variation is suppressed by utilizing an automatic adaptation function in a read/write channel IC. A gate provides a timing for the automatic adaptation of an equalization coefficient, a signal from the gate is given to a read-gate input terminal of the read/write channel IC, and the gate for the automatic adaptation is opened before reading data from a destination sector to be read. The automatic adaptation is started, whereby coefficients for equalization are adapted to signal wave forms before reading data.

    摘要翻译： 在磁盘装置中，通过利用读/写通道IC中的自动适应功能来抑制由环境变化引起的性能的劣化。 门提供用于均衡系数的自动调整的定时，来自门的信号被提供给读/写通道IC的读门输入端，并且用于自动适配的门在从 目的地扇区被读取。 开始自动适应，由此用于均衡的系数适于在读取数据之前对波形进行信号。