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    Probe head with narrow read element
    1.
    发明授权
    Probe head with narrow read element 有权
    探头具有窄读取元素

    公开(公告)号：US07903533B2

    公开(公告)日：2011-03-08

    申请号：US11738615

    申请日：2007-04-23

    申请人： Mark David Bedillion ,  Andreas Karl Roelofs ,  Earl Chrzaszcz Johns ,  Yongjun Zhao ,  Edward Stephen Skalko

    发明人： Mark David Bedillion ,  Andreas Karl Roelofs ,  Earl Chrzaszcz Johns ,  Yongjun Zhao ,  Edward Stephen Skalko

    IPC分类号： G11B9/00

    CPC分类号： G11B9/02

    摘要： An apparatus includes a storage medium, and a transducer positioned adjacent to the storage medium, wherein the transducer includes a first electrode and a second electrode, with the width of the first electrode being less than the width of the second electrode. A method including: applying a first voltage to a transducer to write data to a storage medium, and applying a second voltage to the transducer to read data from the storage medium, wherein the magnitude of the first voltage is greater than the magnitude of the second voltage.

    摘要翻译： 一种设备包括存储介质和邻近存储介质定位的换能器，其中换能器包括第一电极和第二电极，第一电极的宽度小于第二电极的宽度。 一种方法，包括：向换能器施加第一电压以将数据写入存储介质，以及向所述换能器施加第二电压以从所述存储介质读取数据，其中所述第一电压的幅度大于所述第二电压的幅度 电压。

    Probe Head With Narrow Read Element
    2.
    发明申请
    Probe Head With Narrow Read Element 有权
    探头与窄读元素

    公开(公告)号：US20080259779A1

    公开(公告)日：2008-10-23

    申请号：US11738615

    申请日：2007-04-23

    申请人： Mark David Bedillion ,  Andreas Karl Roelofs ,  Earl Chrzaszcz Johns ,  Yongjun Zhao ,  Edward Stephen Skalko

    发明人： Mark David Bedillion ,  Andreas Karl Roelofs ,  Earl Chrzaszcz Johns ,  Yongjun Zhao ,  Edward Stephen Skalko

    IPC分类号： G11B9/02

    CPC分类号： G11B9/02

    摘要： An apparatus includes a storage medium, and a transducer positioned adjacent to the storage medium, wherein the transducer includes a first electrode and a second electrode, with the width of the first electrode being less than the width of the second electrode. A method including: applying a first voltage to a transducer to write data to a storage medium, and applying a second voltage to the transducer to read data from the storage medium, wherein the magnitude of the first voltage is greater than the magnitude of the second voltage.

    摘要翻译： 一种设备包括存储介质和邻近存储介质定位的换能器，其中换能器包括第一电极和第二电极，第一电极的宽度小于第二电极的宽度。 一种方法，包括：向换能器施加第一电压以将数据写入存储介质，以及向所述换能器施加第二电压以从所述存储介质读取数据，其中所述第一电压的幅度大于所述第二电压的幅度 电压。

    Elevated electrodes for probe position sensing
    4.
    发明授权
    Elevated electrodes for probe position sensing 有权
    用于探头位置检测的高架电极

    公开(公告)号：US07903532B2

    公开(公告)日：2011-03-08

    申请号：US11545896

    申请日：2006-10-11

    申请人： Patrick Breckow Chu ,  Mark David Bedillion ,  Earl Chrzaszcz Johns ,  Mark Ian Lutwyche

    发明人： Patrick Breckow Chu ,  Mark David Bedillion ,  Earl Chrzaszcz Johns ,  Mark Ian Lutwyche

    IPC分类号： G11B9/00

    CPC分类号： G11B9/02 ,  B82Y10/00 ,  G11B9/1481

    摘要： An apparatus comprises a storage medium, a head substrate, wherein the storage medium and the head substrate are separated by a gap, a plurality of electrodes separated from each other, and a support structure positioned in the gap for supporting some of the electrodes. An apparatus comprising a storage medium, a head substrate, wherein the storage medium and the head substrate are separated by a gap, a plurality of posts positioned in the gap, a layer of low friction material positioned on one end of each of the posts, is also described.

    摘要翻译： 一种设备包括存储介质，头基板，其中存储介质和头基板由间隙分开，多个彼此分离的电极以及位于间隙中的用于支撑一些电极的支撑结构。 一种包括存储介质，头基板的设备，其中所述存储介质和所述头基板由间隙分开，定位在所述间隙中的多个柱，位于每个所述柱的一端的低摩擦材料层， 也被描述。

    Elevated electrodes for probe position sensing
    5.
    发明申请
    Elevated electrodes for probe position sensing 有权
    用于探头位置检测的高架电极

    公开(公告)号：US20080089211A1

    公开(公告)日：2008-04-17

    申请号：US11545896

    申请日：2006-10-11

    申请人： Patrick Breckow Chu ,  Mark David Bedillion ,  Earl Chrzaszcz Johns ,  Mark Ian Lutwyche

    发明人： Patrick Breckow Chu ,  Mark David Bedillion ,  Earl Chrzaszcz Johns ,  Mark Ian Lutwyche

    IPC分类号： G11B9/00

    CPC分类号： G11B9/02 ,  B82Y10/00 ,  G11B9/1481

    摘要： An apparatus comprises a storage medium, a head substrate, wherein the storage medium and the head substrate are separated by a gap, a plurality of electrodes separated from each other, and a support structure positioned in the gap for supporting some of the electrodes. An apparatus comprising a storage medium, a head substrate, wherein the storage medium and the head substrate are separated by a gap, a plurality of posts positioned in the gap, a layer of low friction material positioned on one end of each of the posts, is also described.

    摘要翻译： 一种设备包括存储介质，头基板，其中存储介质和头基板由间隙分开，多个彼此分离的电极以及位于间隙中的用于支撑一些电极的支撑结构。 一种包括存储介质，头基板的设备，其中所述存储介质和所述头基板由间隙分开，定位在所述间隙中的多个柱，位于每个所述柱的一端的低摩擦材料层， 也被描述。

    Readback signal-based head-disc contact detection using AM/FM demodulation
    6.
    发明授权
    Readback signal-based head-disc contact detection using AM/FM demodulation 有权
    采用AM / FM解调技术回读基于信号的头盘接触检测

    公开(公告)号：US07889447B2

    公开(公告)日：2011-02-15

    申请号：US12353564

    申请日：2009-01-14

    申请人： Juil Lee ,  Michael Ting ,  Mark David Bedillion

    发明人： Juil Lee ,  Michael Ting ,  Mark David Bedillion

    IPC分类号： G11B20/06

    CPC分类号： G11B5/6005

    摘要： A method includes: producing a readback signal using a recording head positioned adjacent to a recording medium, amplitude demodulating the readback signal to produce an amplitude demodulated signal, frequency demodulating the readback signal to produce a frequency demodulated signal, and using the amplitude demodulated signal and the frequency demodulated signal to determine contact of the recording head with the recording medium. An apparatus that can be used to implement the method is also provided.

    摘要翻译： 一种方法包括：使用与记录介质相邻的记录头产生回读信号，对回读信号进行幅度解调以产生幅度解调信号，对回读信号进行频率解调以产生频率解调信号，并使用幅度解调信号和 频率解调信号以确定记录头与记录介质的接触。 还提供了可用于实现该方法的装置。

    Simultaneous Rotational Control Using Offset Linear Actuators
    8.
    发明申请
    Simultaneous Rotational Control Using Offset Linear Actuators 失效
    使用偏移线性执行器同时旋转控制

    公开(公告)号：US20080297289A1

    公开(公告)日：2008-12-04

    申请号：US11755812

    申请日：2007-05-31

    申请人： Patrick Breckow Chu ,  Narayanan Ramakrishnan ,  Mark David Bedillion

    发明人： Patrick Breckow Chu ,  Narayanan Ramakrishnan ,  Mark David Bedillion

    IPC分类号： H01F7/08

    CPC分类号： G11B9/1481 ,  B82Y10/00

    摘要： An apparatus includes a movable member, and first and second actuators coupled to the movable member at positions offset from a first axis that passes through a centroid of the movable member. A controller independently controls the first and second actuators to exert a first force on the movable member in a direction generally parallel to the first axis, thereby controlling both linear and rotational orientation of the movable member. The apparatus can further include third and fourth actuators coupled to the movable member at positions offset from a second axis that passes through the centroid of the movable member, and the controller can independently controlling third and fourth actuators.

    摘要翻译： 一种装置包括可移动构件，以及第一和第二致动器，其在与通过可移动构件的质心的第一轴线偏移的位置处联接到可动构件。 控制器独立地控制第一和第二致动器沿大致平行于第一轴线的方向在可动构件上施加第一力，从而控制可动构件的线性和旋转取向。 该装置还可以包括第三和第四致动器，该第三和第四致动器在与通过可移动构件的重心的第二轴线偏移的位置处联接到可动构件，并且控制器可以独立地控制第三和第四致动器。

    EMBEDDED TRACK INFORMATION FOR PATTERNED MEDIA
    9.
    发明申请
    EMBEDDED TRACK INFORMATION FOR PATTERNED MEDIA 有权
    嵌入式媒体信息

    公开(公告)号：US20110032637A1

    公开(公告)日：2011-02-10

    申请号：US12904910

    申请日：2010-10-14

    申请人： Mark David Bedillion

    发明人： Mark David Bedillion

    IPC分类号： G11B5/596

    CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/5965 ,  G11B5/59688 ,  G11B5/743 ,  G11B5/746 ,  G11B5/855

    摘要： A bit-patterned magnetic media (BPM) includes with respect to each data track a first sub-track and a second sub-track, each sub-track comprised of a plurality of bit-islands. A transducer head placed over a data track generates a readback signal. Channel response circuitry demodulates the readback signal and detects fine positioning information based on a comparison of a readback signal generated in response to the first sub-track and a readback signal generated in response to the second sub-track.

    摘要翻译： 位图形磁介质（BPM）包括关于每个数据轨道的第一子轨道和第二子轨道，每个子轨道由多个位岛组成。 放置在数据轨道上的换能器头产生回读信号。 信道响应电路解调回读信号，并且基于响应于第一子轨道生成的回读信号和响应于第二子轨道生成的回读信号的比较来检测精细定位信息。

    Servo sector format with large lithographic tolerances
    10.
    发明授权
    Servo sector format with large lithographic tolerances 有权
    具有大光刻公差的伺服扇区格式

    公开(公告)号：US07576942B1

    公开(公告)日：2009-08-18

    申请号：US12107521

    申请日：2008-04-22

    申请人： Darren William Karns ,  Mark David Bedillion ,  Qiang Ling ,  Mehmet Fatih Erden

    发明人： Darren William Karns ,  Mark David Bedillion ,  Qiang Ling ,  Mehmet Fatih Erden

    IPC分类号： G11B5/596

    CPC分类号： G11B5/59627

    摘要： A method and system determines the position of a transducer head based on permanent servo marks in which the width of the permanent servo marks is greater than the width of the data tracks they are used to identify. The method includes receiving readback signals in response to the permanent servo marks arranged as a number of null bursts and generating position error signals with respect to each null burst. Region based information is extracted based on the position error signals, and the region based information is used in conjunction with the position error signals to generate region-based displacement estimates with respect to each null burst. The region-based estimates are then combined to generate a final displacement estimate that describes the estimated distance between a transducer head and the centerline of a desired data track.

    摘要翻译： 一种方法和系统基于永久伺服标记确定换能器头的位置，其中永久伺服标记的宽度大于其用于识别的数据轨迹的宽度。 该方法包括响应于排列为多个零脉冲串的永久伺服标记接收回读信号，并相对于每个零脉冲串产生位置误差信号。 基于位置误差信号提取基于区域的信息，并且与位置误差信号一起使用基于区域的信息，以生成关于每个空突发的基于区域的位移估计。 然后组合基于区域的估计以产生描述换能器头与期望数据轨道的中心线之间的估计距离的最终位移估计。