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533 条记录 (耗时 0.018 秒)

    Magnetic head and disk X-Y test assembly with optimized arrangement for skew angle
    13.
    发明申请
    Magnetic head and disk X-Y test assembly with optimized arrangement for skew angle 有权
    磁头和磁盘X-Y测试组件，具有优化的倾斜角度排列

    公开(公告)号：US20070145971A1

    公开(公告)日：2007-06-28

    申请号：US11481313

    申请日：2006-07-05

    申请人： Nahum Guzik

    发明人： Nahum Guzik

    IPC分类号： G01R33/12

    CPC分类号： G11B5/455 ,  G11B5/4806 ,  G11B5/5521 ,  G11B5/5526 ,  G11B5/56 ,  G11B2005/001 ,  G11B2005/0013

    摘要： A magnetic head and disk tester comprises a base, a spindle for rotationally supporting a magnetic disk, a carriage for supporting a magnetic head support which carries a magnetic head with a magnetic read/write element, and a dual-stage positioning system that moves the carriage in two perpendicular directions X and Y. The magnetic head support, the magnetic head and the magnetic read/write element have a conmmon longitudinal axis Z. The head support is positioned such that the longitudinal axis Z forms a predetermined angle between 0° and 90° with respect to the Y direction. Preferably the predetermined angle is about 45 degrees. When the head is driven from one point of an inner track to a point of an outer track, the displacement of the head along X axis is relatively large and the displacement of the head along Y axis is relatively small.

    摘要翻译： 一种磁头和磁盘测试仪，包括一个基座，一个用于旋转支撑磁盘的主轴，一个用于支撑磁头支架的滑架，该磁头支撑件带有一个带有磁读/写元件的磁头，以及一个双级定位系统， 在两个垂直方向X和Y上的托架。磁头支撑件，磁头和磁读/写元件具有螺纹纵向轴线Z.头部支撑件定位成使得纵向轴线Z形成在0°和 相对于Y方向为90°。 优选地，预定角度为约45度。 当头部从内轨道的一个点驱动到外部轨道的点时，头部沿X轴的位移相对较大，并且头部沿着Y轴的位移相对较小。

    Write precompensation method for perpendicular magnetic recording
    14.
    发明授权
    Write precompensation method for perpendicular magnetic recording 失效
    写入垂直磁记录的预补偿方法

    公开(公告)号：US07126773B1

    公开(公告)日：2006-10-24

    申请号：US11093929

    申请日：2005-03-30

    申请人： Alexander Taratorin

    发明人： Alexander Taratorin

    IPC分类号： G11B5/09 ,  G11B5/02

    CPC分类号： G11B5/02 ,  G11B20/10194 ,  G11B2005/0013 ,  G11B2005/0029

    摘要： A method is presented for precompensation of Non-Linear Transition Shift (NLTS) in magnetic recording media using a perpendicular recording write head. The method includes maintaining a count of non-transition data bits (“zeroes”) preceding a data transition (“one”) to be written. A precompensation value is assigned which correlates to the count of non-transition data bits preceding the data transition to be written. The assigned precompensation value is then applied to delay timing of a write signal sent to the perpendicular recording write head so that the location of the actual written data transition more closely aligns with an ideal location of the data transition to be written.

    摘要翻译： 提出了一种用于使用垂直记录写头在磁记录介质中非线性转换移位（NLTS）进行预补偿的方法。 该方法包括保持要被写入的数据转换（“1”）之前的非转换数据位（“零”）的计数。 分配预补偿值，其与要写入的数据转换之前的非转换数据位的计数相关。 然后将分配的预补偿值应用于发送到垂直记录写头的写入信号的延迟定时，使得实际写入数据转换的位置更接近于要写入的数据转换的理想位置。

    Method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation
    15.
    发明授权
    Method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation 失效
    用于在写入操作期间提供靠近极尖的横向磁偏压的方法，以加速极尖的切换时间

    公开(公告)号：US07070716B2

    公开(公告)日：2006-07-04

    申请号：US10628646

    申请日：2003-07-28

    申请人： Quan-Chiu Harry Lam

    发明人： Quan-Chiu Harry Lam

    IPC分类号： G11B5/147

    CPC分类号： G11B5/09 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0008 ,  G11B2005/0013 ,  H01F13/00 ,  H01F17/0006

    摘要： A method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation is disclosed. The transverse field disposed proximate the pole-tip helps the conventional driving field in rotating the magnetization through the first 90-degrees, especially at small angle where the effective anisotropy-field is strongest in opposing the conventional driving field. By offsetting the magnetization from its easy-axis, the transverse field also increases the torque that the collinear driving field would have on the magnetization.

    摘要翻译： 公开了一种在写入操作期间提供靠近极尖的横向磁偏压以加速极尖的切换时间的方法。 设置在极尖附近的横向场有助于传统的驱动场，使磁化旋转第一个90度，特别是在与常规驱动场相反的有效各向异性场最强的小角度。 通过使磁化强度从容易轴偏移，横向磁场也增加了共线驱动磁场对磁化的影响。

    Semiconductor integrated circuit and magnetic storage device using the same
    17.
    发明授权
    Semiconductor integrated circuit and magnetic storage device using the same 失效
    半导体集成电路和使用其的磁存储器件

    公开(公告)号：US07046468B2

    公开(公告)日：2006-05-16

    申请号：US11030067

    申请日：2005-01-07

    申请人： Hiroki Yamashita ,  Masayoshi Yagyu ,  Fumio Yuuki ,  Tatsuya Kawashimo

    发明人： Hiroki Yamashita ,  Masayoshi Yagyu ,  Fumio Yuuki ,  Tatsuya Kawashimo

    IPC分类号： G11B5/02

    CPC分类号： G11B5/02 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/022 ,  G11B2005/0013 ,  G11B2005/3996 ,  H03K17/6872 ,  H03K2217/0036

    摘要： The present invention provides a semiconductor integrated circuit capable of reducing a circuit area and a magnetic storage device using the same. The circuit in the present invention is provided with a single-stage output transistor for supplying write current to a magnetic head, a current source for outputting reference current of the write current, a diode-connected NMOS transistor for converting the current to gate voltage and having a certain device size ratio to the output transistor, a regulator circuit for transmitting gate voltage of the NMOS transistor and reducing output impedance, and a CMOS circuit for setting power supply voltage to an output of the regulator circuit and controlling the gate voltage of the output transistor. Then, this circuit is applied as a write circuit in a magnetic storage device.

    摘要翻译： 本发明提供能够减少电路面积的半导体集成电路和使用该半导体集成电路的磁存储装置。 本发明的电路设置有用于向磁头提供写入电流的单级输出晶体管，用于输出写入电流的参考电流的电流源，用于将电流转换为栅极电压的二极管连接的NMOS晶体管，以及 与输出晶体管具有一定的器件尺寸比，用于传输NMOS晶体管的栅极电压并降低输出阻抗的调节器电路，以及用于将电源电压设置到调节器电路的输出并控制调节器电路的栅极电压的CMOS电路 输出晶体管。 然后，该电路作为写入电路应用于磁存储装置。

    High-speed write driver
    18.
    发明申请
    High-speed write driver 失效

    公开(公告)号：US20060097761A1

    公开(公告)日：2006-05-11

    申请号：US10982372

    申请日：2004-11-05

    申请人： Anatoli Stein ,  Alex Zolotarev

    发明人： Anatoli Stein ,  Alex Zolotarev

    IPC分类号： H03B1/00

    CPC分类号： G11B5/02 ,  G11B2005/0013

    摘要： A write driver includes two field-effect/bipolar transistors with feedbacks between the drains/collectors and gates/bases, a write/read switch connected between the drains/collectors and a positive power supply, an impedance matching circuit connected to the drains/collectors to match both differential and common mode output impedance of the write driver to an input impedance of a flex circuit, a common mode output voltage control circuit coupled to the transistors, and a differential mode output voltage control circuit coupled to the transistors.