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    WIRE-ASSISTED MAGNETIC WRITE DEVICE INCLUDING MULTIPLE WIRE ASSIST CONDUCTORS
    1.
    发明申请
    WIRE-ASSISTED MAGNETIC WRITE DEVICE INCLUDING MULTIPLE WIRE ASSIST CONDUCTORS 审中-公开
    包括多根线辅助导线器的辅助磁铁写入装置

    公开(公告)号：US20090262636A1

    公开(公告)日：2009-10-22

    申请号：US12105627

    申请日：2008-04-18

    申请人： Jianhua Xue ,  Yuming Zhou ,  Shaoping Li ,  Johannes van Ek ,  Christopher Rea

    发明人： Jianhua Xue ,  Yuming Zhou ,  Shaoping Li ,  Johannes van Ek ,  Christopher Rea

    IPC分类号： G11B9/00

    CPC分类号： G11B5/314 ,  G11B2005/001

    摘要： A magnetic device includes a write element including a write element tip, and a conductive coil for carrying a write current to induce a first field in the write element. A first conductor proximate a trailing edge of the write pole tip is operable to carry a first assist current to generate a second field that augments the first field. A second conductor proximate a leading edge of the write pole tip is operable to carry a second assist current to generate a third field that augments the first field. First and second side shields are on opposing sides of the write element in a cross-track direction.

    摘要翻译： 磁性装置包括写入元件，该写入元件包括写入元件尖端，以及用于承载写入电流以引起写入元件中的第一场的导电线圈。 靠近写极尖的后缘的第一导体可操作以承载第一辅助电流以产生增大第一场的第二场。 靠近写极尖的前沿的第二导体可操作以承载第二辅助电流以产生增大第一场的第三场。 第一和第二侧面屏蔽件在横向方向上位于写入元件的相对侧上。

    Characterizing head parameters of a disk drive by evaluating track profile of an overwritten track
    8.
    发明授权
    Characterizing head parameters of a disk drive by evaluating track profile of an overwritten track 有权
    通过评估覆盖轨道的轨道轮廓来表征磁盘驱动器的磁头参数

    公开(公告)号：US08717695B1

    公开(公告)日：2014-05-06

    申请号：US13408921

    申请日：2012-02-29

    申请人： Enhao Lin ,  Shaoping Li

    发明人： Enhao Lin ,  Shaoping Li

    IPC分类号： G11B27/10

    CPC分类号： G11B5/455

    摘要： A disk drive is disclosed comprising a disk comprising a plurality of tracks, and a head actuated over the disk. The head is positioned over a track while writing a first frequency pattern substantially centered on the track at a first frequency. After writing the first frequency pattern, a second frequency pattern is written substantially centered on the track at a second frequency, wherein the second frequency pattern is written over the first frequency pattern. After writing the second frequency pattern over the first frequency pattern, the head is scanned across the track while reading the disk to generate a read signal. A first frequency component is extracted from the read signal representing the first frequency.

    摘要翻译： 公开了一种磁盘驱动器，包括包括多个轨道的盘，以及在盘上致动的头。 当以第一频率写入基本上以轨道为中心的第一频率图案时，头部位于轨道上方。 在写入第一频率模式之后，第二频率模式以第二频率基本上以轨道为中心写入，其中第二频率模式被写入第一频率模式。 在第一频率图案上写入第二频率图案之后，在读取磁盘的同时扫描磁头以产生读取信号。 从表示第一频率的读取信号中提取第一频率分量。