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    BPM RECORDING WITH MORE THAN ONE DOT PER BIT
    4.
    发明申请
    BPM RECORDING WITH MORE THAN ONE DOT PER BIT 有权
    BPM每位记录超过一个点

    公开(公告)号：US20110038072A1

    公开(公告)日：2011-02-17

    申请号：US12539147

    申请日：2009-08-11

    申请人： Kaizhong Gao ,  Housan Dakroub

    发明人： Kaizhong Gao ,  Housan Dakroub

    IPC分类号： G11B5/09

    CPC分类号： G11B5/012 ,  B82Y10/00 ,  G11B5/59616 ,  G11B5/743 ,  G11B5/746 ,  G11B5/82 ,  G11B5/855 ,  G11B20/10009 ,  G11B2005/0005 ,  G11B2220/2516 ,  G11B2220/252

    摘要： Data storage systems are provided. Data storage systems illustratively include a recording head having a writing element and a bit patterned medium having a plurality of media dots. In some embodiments, the plurality of media dots pass the recording head at a media dot frequency. In some embodiments, the writing element writes data to the bit patterned media at a writing frequency that is less than the media dot frequency.

    摘要翻译： 提供数据存储系统。 数据存储系统示例性地包括具有写入元件和具有多个媒体点的位图案化介质的记录头。 在一些实施例中，多个媒体点以媒体点频率通过记录头。 在一些实施例中，写入元件以小于媒体点频率的写入频率将数据写入位图案化介质。

    Actuator trace through a die
    6.
    发明授权
    Actuator trace through a die 有权
    致动器跟踪通过一个模具

    公开(公告)号：US08422172B1

    公开(公告)日：2013-04-16

    申请号：US12895854

    申请日：2010-10-01

    申请人： Housan Dakroub ,  Dennis Hogg

    发明人： Housan Dakroub ,  Dennis Hogg

    IPC分类号： G11B5/48

    CPC分类号： G11B5/4846 ,  G11B5/483

    摘要： A disk drive is disclosed. The disk drive comprises a disk, a head configured to write data to and read data from the disk, and an actuator configured to position the head relative to the disk. The disk drive also comprises a die including internal circuitry electrically coupled to the head and a bypass trace electrically coupled to the actuator, wherein the internal circuitry comprises one or more preamplifiers and the bypass trace is electrically isolated from the internal circuitry.

    摘要翻译： 公开了一种磁盘驱动器。 磁盘驱动器包括一个磁盘，头部，被配置为向磁盘写入数据和从盘读取数据;以及致动器，被配置为将磁头相对于磁盘定位。 磁盘驱动器还包括芯片，其包括电耦合到磁头的内部电路和电耦合到致动器的旁路迹线，其中内部电路包括一个或多个前置放大器，并且旁路迹线与内部电路电隔离。

    Magnetic recording using discrete pulsed write currents in a disc drive
    8.
    发明授权
    Magnetic recording using discrete pulsed write currents in a disc drive 失效
    在磁盘驱动器中使用离散脉冲写入电流进行磁记录

    公开(公告)号：US06466386B1

    公开(公告)日：2002-10-15

    申请号：US09470659

    申请日：1999-12-22

    申请人： Housan Dakroub

    发明人： Housan Dakroub

    IPC分类号： G11B509

    CPC分类号： G11B5/09 ,  G11B5/012 ,  G11B20/10009

    摘要： Apparatus and method for writing data to a magnetic recording medium in the form of magnetization vectors having alternating magnetic orientations and lengths ranging from a minimum symbol length to a maximum symbol length. A write element adjacent the medium includes a leading edge and a trailing edge to form a write gap which generates a write gap recording field having a length substantially greater than the minimum symbol length. A write driver applies a write current signal to the write element as a series of current pulses, each pulse magnetizing an area of the disc corresponding to the length of the write gap recording field. A subsequent current pulse is applied while a portion of a first area magnetized by a previous pulse remains disposed between the leading edge and the trailing edge of the write element, so that the remaining portion of the first area beyond the trailing edge of the write element forms a magnetization vector of selected symbol length.

    摘要翻译： 以磁化矢量的形式向磁记录介质写入数据的装置和方法，其具有从最小符号长度到最大符号长度的交替磁方向和长度。 与介质相邻的写入元件包括前沿和后沿以形成写入间隙，该写入间隙产生具有大于最小符号长度的长度的写入间隙记录场。 写入驱动器将写入电流信号作为一系列当前脉冲施加写入电流信号，每个脉冲磁化对应于写入间隙记录区域的长度的盘的区域。 随后的当前脉冲被施加，而由先前脉冲磁化的第一区域的一部分保持设置在写入元件的前沿和后沿之间，使得第一区域的剩余部分超出写入元件的后沿 形成所选符号长度的磁化矢量。

    Head assembly with integrated write current shaping circuit
    9.
    发明授权
    Head assembly with integrated write current shaping circuit 失效
    具有集成写入电流整形电路的头部组件

    公开(公告)号：US06349009B1

    公开(公告)日：2002-02-19

    申请号：US09326069

    申请日：1999-06-04

    申请人： Housan Dakroub ,  Hieu V. Nguyen

    发明人： Housan Dakroub ,  Hieu V. Nguyen

    IPC分类号： G11B502

    CPC分类号： G11B5/5521 ,  G11B5/012 ,  G11B5/02 ,  G11B5/035 ,  G11B5/4826 ,  G11B5/486 ,  G11B2005/0013

    摘要： Apparatus for improving data writing operations to a disc recording surface of a disc drive. A head assembly is supported over the disc recording surface by a flexible suspension assembly of a controllably positionable actuator assembly and includes a write current shaping circuit integrated with a write element. The write current shaping circuit modifies write currents received by the head assembly via a transmission line from a preamplifier driver circuit to remove undesired characteristics from the received write currents. The write element writes data to the disc recording surface using the write currents as modified by the write current shaping circuit.

    摘要翻译： 用于改善对盘驱动器的盘记录表面的数据写入操作的装置。 头组件通过可控制的致动器组件的柔性悬挂组件支撑在盘记录表面上，并且包括与写入元件集成的写入电流整形电路。 写入电流整形电路通过来自前置放大器驱动器电路的传输线修改由头部组件接收的写入电流，以从接收的写入电流去除不期望的特性。 写元件使用由写入电流整形电路修改的写入电流将数据写入盘记录表面。

    Data storage system having baseline shift correction
    10.
    发明授权
    Data storage system having baseline shift correction 失效
    具有基线偏移校正的数据存储系统

    公开(公告)号：US5999348A

    公开(公告)日：1999-12-07

    申请号：US884933

    申请日：1997-06-30

    申请人： Housan Dakroub

    发明人： Housan Dakroub

    IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10

    CPC分类号： G11B20/10203 ,  G11B5/012 ,  G11B2005/0016 ,  G11B5/09

    摘要： A data storage apparatus is provided in which a transducer provides a read back signal. A baseline shift correction network, operably coupled to the transducer, removes baseline shift from the read back signal and provides a corrected read back signal. In addition, a disc drive utilizing baseline shift compensation circuitry is disclosed.

    摘要翻译： 提供一种数据存储装置，其中换能器提供回读信号。 可操作地耦合到换能器的基线偏移校正网络从读回信号中去除基线偏移并提供经校正的回读信号。 此外，公开了一种利用基线偏移补偿电路的磁盘驱动器。