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    ACTIVE CONTROL OF A READ/WRITE HEAD
    2.
    发明申请
    ACTIVE CONTROL OF A READ/WRITE HEAD 审中-公开

    公开(公告)号：US20180130495A1

    公开(公告)日：2018-05-10

    申请号：US15848685

    申请日：2017-12-20

    申请人： L2 Drive Inc.

    发明人： Karim Kaddeche

    IPC分类号： G11B21/21 ,  G11B5/48 ,  G11B5/58

    CPC分类号： G11B21/21 ,  G11B5/4833 ,  G11B5/58 ,  G11B5/6017 ,  G11B5/6058

    摘要： The invention generally relates to hard disk drives with a disk and a read/write head, and methods for preventing contact between the disk and the read/write head. The hard disk drive includes a z-axis actuator configured to control movement of the read/write head, and to prevent contact between the read/write head and the disk, based on signals from a controller that indicate when the distance between the read/write head and the disk are outside a predetermined range, such as between 0 and 10.0 nm.

    Actuator limiters for multiple disk-stack, shared actuator hard disk drive
    3.
    发明授权
    Actuator limiters for multiple disk-stack, shared actuator hard disk drive 有权

    公开(公告)号：US09704521B1

    公开(公告)日：2017-07-11

    申请号：US15199892

    申请日：2016-06-30

    申请人： HGST Netherlands B.V.

    发明人： Anant Shah ,  Thomas Tamayo

    IPC分类号： G11B5/54 ,  G11B5/58

    CPC分类号： G11B5/58 ,  G11B5/4886 ,  G11B5/54 ,  G11B21/22

    摘要： An actuator rotational limiter mechanism for a multiple disk-stack, shared actuator hard disk drive includes an actuator comb with a protruding pin, whereby rotation of the actuator comb is limited by an attraction between the pin and a magnet. An enclosure base may include a curved slot in which the pin is disposed, where one end of the slot may correspond to the head slider being near the inner diameter of a first disk stack and the other end of the slot may correspond to the head slider being near the inner diameter of a second disk stack adjacent to the first disk stack. The magnet may be disposed within or adjacent to the curved slot, at a midway location, whereby the pin is held in place by the magnet at a position that corresponds to the head slider being parked on a ramp positioned between the disk stacks.

    TAPE RECORDING HEAD HAVING NON-PARALLEL GAPS AND DISSIMILAR TRANSDUCER PITCHES
    4.
    发明申请
    TAPE RECORDING HEAD HAVING NON-PARALLEL GAPS AND DISSIMILAR TRANSDUCER PITCHES 有权
    具有非平行GAPS和DISSIMILAR传感器板的磁带记录头

    公开(公告)号：US20160254015A1

    公开(公告)日：2016-09-01

    申请号：US15148758

    申请日：2016-05-06

    申请人： International Business Machines Corporation

    发明人： Robert G. Biskeborn ,  Calvin S. Lo

    IPC分类号： G11B5/56 ,  G11B5/008 ,  G11B5/584

    CPC分类号： G11B5/56 ,  G11B5/00826 ,  G11B5/4893 ,  G11B5/58 ,  G11B5/584 ,  G11B20/1201 ,  G11B2020/1281

    摘要： A drive-implemented method according to one embodiment includes determining an extent of tape dimensional instability, and adjusting a tilt angle of a first array of transducers based on the determined extent. A readback operation is performed using the array oriented at the tile angle. During the readback operation, a longitudinal axis of the first arrays is not parallel to the longitudinal axis of a second array of transducers coupled thereto.

    摘要翻译： 根据一个实施例的驱动实现方法包括确定磁带尺寸不稳定性的程度，以及基于所确定的范围来调整第一阵列换能器的倾斜角。 使用以瓦片角度定向的阵列执行回读操作。 在回读操作期间，第一阵列的纵向轴线不平行于与其耦合的第二转换器阵列的纵向轴线。

    Integrated recording head with selective movement
    7.
    发明授权
    Integrated recording head with selective movement 有权
    集成记录头选择运动

    公开(公告)号：US09070413B2

    公开(公告)日：2015-06-30

    申请号：US13647168

    申请日：2012-10-08

    申请人： Dallas W. Meyer

    发明人： Dallas W. Meyer

    IPC分类号： G11B5/58 ,  G11B21/21 ,  G11B5/48 ,  G11B5/55 ,  G11B21/24

    CPC分类号： G11B21/21 ,  G11B5/48 ,  G11B5/4826 ,  G11B5/4873 ,  G11B5/5552 ,  G11B5/58

    摘要： A recording head for use in magnetic storage devices is disclosed. The recording head includes a transducer that is bi-directionally movable with respect to a surface of the magnetic storage medium, thereby enabling improved positioning of the transducer during recording head read and write operations. Various structures are disclosed to bi-directionally actuate the recording head transducer. In one embodiment, an interleaver assembly having a plurality of flexure assemblies employs a motor including magnetic portions for selective, bi-directional actuation. In another embodiment, electrostatic charges are employed in the flexure assemblies for selective actuation. In yet another embodiment, piezoelectric elements are included to provide for selective actuation.

    摘要翻译： 公开了一种用于磁存储装置的记录头。 记录头包括相对于磁存储介质的表面双向移动的换能器，从而能够在记录头读写操作期间改进换能器的定位。 公开了各种结构以双向致动记录头传感器。 在一个实施例中，具有多个挠曲组件的交织器组件采用包括用于选择性双向致动的磁性部分的电动机。 在另一个实施例中，静电荷用于挠曲组件以用于选择性致动。 在另一个实施例中，包括压电元件以提供选择性致动。

    Disk drive measuring reader/writer gap by measuring fractional clock cycle over disk radius
    8.
    发明授权
    Disk drive measuring reader/writer gap by measuring fractional clock cycle over disk radius 有权
    磁盘驱动器通过测量磁盘半径上的分数时钟周期来测量读/写器间隙

    公开(公告)号：US09013818B1

    公开(公告)日：2015-04-21

    申请号：US14137314

    申请日：2013-12-20

    申请人： Western Digital Technologies, Inc.

    发明人： Zhenyu Sun ,  Teik Ee Yeo

    IPC分类号： G11B5/09 ,  G11B5/58 ,  G11B5/596

    CPC分类号： G11B5/58 ,  G11B5/59616 ,  G11B5/59627

    摘要： A disk drive is disclosed comprising a disk, and a head actuated radially over the disk, wherein the head comprises a read element separated from a write element by a reader/writer gap. A disk-locked clock is synchronized to a rotation of the disk, wherein the disk-locked clock comprises a plurality of clock cycles, and the reader/writer gap spans a first number of the clock cycles comprising an integer of the clock cycles plus a fraction of one of the clock cycles. The fraction of one of the clock cycles is measured when the head is positioned at a first plurality of radial locations across the disk, and a second plurality of radial locations is estimated where the fraction substantially equals a full one of the clock cycles.

    摘要翻译： 公开了一种磁盘驱动器，其包括盘和径向地驱动在盘上的磁头，其中磁头包括通过读/写器间隙与写入元件分离的读取元件。 磁盘锁定时钟与盘的旋转同步，其中盘锁定时钟包括多个时钟周期，并且读/写器间隙跨越包括时钟周期的整数的第一数量的时钟周期加上 其中一个时钟周期的分数。 当头部位于穿过盘的第一多个径向位置时，测量时钟周期中的一个的分数，并且估计第二多个径向位置，其中分数基本上等于整个时钟周期。

    Method and apparatus for operating a tape storage device
    9.
    发明授权
    Method and apparatus for operating a tape storage device 有权
    用于操作磁带存储装置的方法和装置

    公开(公告)号：US08891198B2

    公开(公告)日：2014-11-18

    申请号：US13947843

    申请日：2013-07-22

    申请人： International Business Machines Corporation

    发明人： Nhan X. Bui ,  Giovanni Cherubini ,  Jens Jelitto ,  Angeliki Pantazi ,  Kazuhiro Tsuruta

    IPC分类号： G11B5/584 ,  G11B20/20 ,  G11B15/48 ,  G11B15/18 ,  G11B15/60 ,  G11B5/58 ,  G11B20/10

    CPC分类号： G11B15/1808 ,  G11B5/58 ,  G11B5/584 ,  G11B15/602 ,  G11B20/10009 ,  G11B20/10305 ,  G11B20/10388 ,  G11B2220/90

    摘要： In a method for operating a tape storage device comprising a tape head for reading and/or writing data from/to a tape in the tape storage device, a first tape skew value concerning a skew of the tape is determined and the first tape skew value is converted into a first skew control signal by means of a skew feedback controller. A second tape skew value concerning the skew of the tape is determined, and the second tape skew value is converted into a second skew control signal by a feed-forward controller. At least one compensation signal for the second skew control signal is determined, and at least one of a rotational orientation of the tape head and a tape motion direction of the tape is controlled dependent on the second skew control signal and the compensation signal in case the first skew control signal fails.

    摘要翻译： 在一种用于操作磁带存储设备的方法中，该磁带存储设备包括用于从磁带存储设备中的磁带读取和/或写入数据的磁带头，确定了关于磁带的偏斜的第一磁带扭曲值，并且第一磁带扭曲值 通过偏斜反馈控制器转换成第一偏斜控制信号。 确定关于带的偏斜的第二带偏移值，并且通过前馈控制器将第二带偏移值转换为第二偏斜控制信号。 确定用于第二歪斜控制信号的至少一个补偿信号，并且根据第二歪斜控制信号和补偿信号来控制带头的旋转取向和带的带运动方向中的至少一个， 第一歪斜控制信号失败。