Method of servo writing, method of compensating phase mismatch of servo pattern and hard disk drive on which the methods are implemented
    1.
    发明授权
    Method of servo writing, method of compensating phase mismatch of servo pattern and hard disk drive on which the methods are implemented 失效
    伺服写入方法,补偿伺服模式和硬盘驱动器相位失配的方法

    公开(公告)号:US08031427B2

    公开(公告)日:2011-10-04

    申请号:US12483330

    申请日:2009-06-12

    IPC分类号: G11B21/02 G11B5/596 G11B5/09

    CPC分类号: G11B5/59644

    摘要: A method of servo writing for each track of a magnetic recording medium divided into a plurality of circular tracks including performing a phase adjustment operation by controlling a phase of a recording current according to a skew angle formed by a magnetic head and a track of the magnetic recording medium, and writing a servo pattern when the magnetic recording medium is magnetized using a magnetic head so as to have a magnetized pattern corresponding to a servo pattern.

    摘要翻译: 一种用于分割成多个圆形轨迹的磁记录介质的每个轨道的伺服写入的方法,包括通过根据由磁头和磁道的轨道形成的倾斜角来控制记录电流的相位来执行相位调整操作 记录介质,并且当使用磁头磁化磁记录介质以便具有对应于伺服图案的磁化图案时,写入伺服图案。

    Fluid dynamic bearing and hard disk drive employing the same
    2.
    发明授权
    Fluid dynamic bearing and hard disk drive employing the same 失效
    流体动力轴承和采用它的硬盘驱动器

    公开(公告)号:US07677805B2

    公开(公告)日:2010-03-16

    申请号:US11254762

    申请日:2005-10-21

    IPC分类号: F16C32/06

    摘要: A fluid dynamic bearing is constructed to support stably a rotating body to which a non-uniform force is applied, and a hard disk drive (HDD) employing the fluid dynamic bearing is provided. The fluid dynamic bearing includes a journal bearing part supporting a rotary shaft in a radial direction of the rotary shaft, a thrust part formed at one end of the rotary shaft, a thrust bearing part facing the thrust part and supporting the rotary shaft in a longitudinal direction of the rotary shaft, and a plurality of grooves formed on a surface of the thrust bearing part and/or the thrust part. The plurality of grooves include a first groove group including a plurality of grooves having the same shape and arrangement, and a second groove group adjacent to the first groove group and including at least one groove asymmetric with respect to the grooves of the first groove group.

    摘要翻译: 构造流体动力轴承以稳定地支撑施加不均匀的力的旋转体,并且提供采用流体动力轴承的硬盘驱动器(HDD)。 流体动力轴承包括在旋转轴的径向方向上支撑旋转轴的轴颈轴承部,形成在旋转轴的一端的推力部,面向推力部的推力轴承部,并以纵向方式支撑旋转轴 旋转轴的方向,以及形成在推力轴承部和/或推力部的表面上的多个槽。 多个凹槽包括具有相同形状和布置的多个凹槽的第一凹槽组和与第一凹槽组相邻并且包括相对于第一凹槽组的凹槽不对称的至少一个凹槽的第二凹槽组。

    Hard disk drive, suspension assembly of actuator of hard disk drive, and method of operation of hard disk drive
    3.
    发明申请
    Hard disk drive, suspension assembly of actuator of hard disk drive, and method of operation of hard disk drive 失效
    硬盘驱动器,硬盘驱动器执行器的悬挂组件,硬盘驱动器的操作方法

    公开(公告)号:US20070159726A1

    公开(公告)日:2007-07-12

    申请号:US11651541

    申请日:2007-01-10

    IPC分类号: G11B5/48

    CPC分类号: G11B5/4826

    摘要: A suspension assembly of an actuator of a hard disk drive prevents collisions with a data storage disk of the drive. The suspension assembly includes a load beam, a bracket having a rear end at which the bracket is coupled to the load beam and a flexure, a slider that is attached to the bracket and carries the read/write head of the hard disk drive, and a limiting mechanism capable of selectively attaching and detaching a respective portion of the bracket to and from the load beam during operation. The load beam has a dimple projecting toward the bracket and which normally contacts a first surface of the bracket. The slider is attached to a second surface of the bracket opposite the first surface. The limiting mechanism attaches a portion of the bracket bearing the slider to the load beam when the read/write head is unloaded from the disk. Therefore, the wobbling of the slider is suppressed during the unloading operation. On the other hand, the portion of the bracket bearing the slider is detached from the load beam during a read/write operation to allow the slider to pitch and roll more freely about the dimple.

    摘要翻译: 硬盘驱动器的执行器的悬架组件可防止与驱动器的数据存储盘的冲突。 悬挂组件包括负载梁,具有后端的支架,支架联接到负载梁和挠曲件,附接到支架并承载硬盘驱动器的读/写头的滑块,以及 限制机构能够在操作期间选择性地将支架的相应部分与负载梁相连和分离。 负载梁具有朝向支架突出的凹坑,并且通常接触支架的第一表面。 滑块附接到支架的与第一表面相对的第二表面。 当读/写头从盘上卸载时,限制机构将支承滑块的支架的一部分连接到负载梁。 因此,在卸载操作期间抑制滑块的摆动。 另一方面,在读/写操作期间,承载滑块的支架的部分与负载梁分离,以允许滑块围绕凹坑更自由地俯仰和滚动。

    Actuator and hard disk drive having the same
    4.
    发明申请
    Actuator and hard disk drive having the same 审中-公开
    执行器和硬盘驱动器具有相同的功能

    公开(公告)号:US20070081275A1

    公开(公告)日:2007-04-12

    申请号:US11548732

    申请日:2006-10-12

    IPC分类号: G11B5/54

    CPC分类号: G11B5/5569

    摘要: An actuator and a hard disk drive (HDD) having the same. The actuator of the HDD includes a swing arm to rotate about a pivot and having a suspension with a read/write head mounted on a front end of the swing arm to record and reproduce data , a coil-supporting portion connected to a rear end of the swing arm rotate together with the swing arm to receive voice coil motor (VCM) coil , a magnet positioned above and under the VCM coil to face each other to face the VCM coil, and at least one swing-arm protrusion formed at the rear end of the swing arm to protrude toward the magnet and including a magnetic material so that a bias torque is produced due to an interaction between the at least one swing-arm protrusion and the magnet.

    摘要翻译: 具有该致动器和硬盘驱动器(HDD)的驱动器。 HDD的致动器包括摆臂,围绕枢轴旋转并具有悬挂装置,其中安装有摆动臂的前端的读/写头以记录和再现数据;线圈支撑部分,连接到后端 摆臂与摆臂一起旋转,以接收音圈电机(VCM)线圈,位于VCM线圈上方和下方的磁铁相对面对VCM线圈,以及形成在后面的至少一个摆臂突起 摆动臂的端部朝向磁体突出并且包括磁性材料,使得由于至少一个摆臂突起和磁体之间的相互作用而产生偏置扭矩。

    Electrostatically driven carbon nanotube gripping device
    5.
    发明申请
    Electrostatically driven carbon nanotube gripping device 有权
    静电驱动碳纳米管夹持装置

    公开(公告)号:US20060076790A1

    公开(公告)日:2006-04-13

    申请号:US11142374

    申请日:2005-06-02

    IPC分类号: B25J7/00

    摘要: An apparatus is provided for gripping nano-scale objects, wherein the apparatus includes a probe including a base portion and a terminal portion. First and second nanotubes are secured to the base portion of the probe, wherein each of the first and second nanotubes include a protruding portion which extends past the base portion and the terminal portion of the probe. First and second electrodes are formed on the base portion of the probe and electrically connected to the first and second nanotubes. A third electrode is disposed on the terminal portion of the probe. A control circuit applies a voltage to the first, second and third electrodes to close the protruding portions of the first and second nanotubes by charging the first and second nanotubes to a first polarity and charging the third electrode to a second polarity opposite to the first polarity.

    摘要翻译: 提供一种用于夹持纳米尺度物体的装置,其中,该装置包括包括基部和端子部分的探针。 第一和第二纳米管被固定到探针的基部,其中第一和第二纳米管中的每一个包括延伸穿过探针的基部和终端部分的突出部分。 第一和第二电极形成在探针的基部上并电连接到第一和第二纳米管。 第三电极设置在探针的端子部分上。 控制电路通过将第一和第二纳米管充电到第一极性并将第三电极充电到与第一极性相反的第二极性,向第一和第二电极施加电压以封闭第一和第二纳米管的突出部分 。

    Hard disk and spindle motor assembly
    6.
    发明授权
    Hard disk and spindle motor assembly 失效
    硬盘和主轴电机组合

    公开(公告)号:US07511920B2

    公开(公告)日:2009-03-31

    申请号:US11494464

    申请日:2006-07-28

    IPC分类号: G11B17/02

    CPC分类号: G11B17/0287 G11B17/038

    摘要: A spindle motor assembly includes a spindle motor having a shaft and a hub that rotates on the shaft, and a hard disk having a data storage medium mounted in the form of a whole disk, and a fastener attached to the center of a bottom surface of the disk-shaped data storage medium that faces the spindle motor. The fastener is a screw or a nut. In the case in which the fastener is a screw, a head of the screw is attached to the bottom surface of the hard disk, and the body of the screw is received in a screw hole in the upper portion of the shaft of the spindle motor. In the case in which the fastener is a nut, the nut is engaged with an external thread on an outer circumferential surface of the hub of the spindle motor.

    摘要翻译: 主轴电动机组件包括主轴电动机,该主轴电动机具有轴和在轴上旋转的轮毂,以及具有以整个盘的形式安装的数据存储介质的硬盘,以及附接到底盘表面的中心的紧固件 面对主轴电动机的盘状数据存储介质。 紧固件是螺钉或螺母。 在紧固件是螺钉的情况下,螺钉的头部附接到硬盘的底表面,螺钉的主体被容纳在主轴电机的轴的上部的螺纹孔中 。 在紧固件是螺母的情况下,螺母与主轴电机的轮毂的外周面上的外螺纹接合。

    Actuator latch apparatus for data storage device
    7.
    发明授权
    Actuator latch apparatus for data storage device 失效
    用于数据存储装置的执行器锁存装置

    公开(公告)号:US07085105B2

    公开(公告)日:2006-08-01

    申请号:US10444963

    申请日:2003-05-27

    IPC分类号: G11B21/12 G11B21/22

    CPC分类号: G11B21/22 G11B5/54

    摘要: An actuator latch apparatus for a data storage device includes a latch lever installed on a base plate of the data storage device capable of pivoting and having a first latch portion provided at one end portion of the latch lever, a spring connected to the other end portion of the latch lever and made of a shape memory alloy to allow the latch lever to pivot in a predetermined direction by being deformed according to application of electric power, and a second latch portion provided at an end portion of an actuator moving a read/write head to a predetermined position of a disk. When the rotation of the disk is stopped and the actuator is parked at a parking position, the spring allows the latch lever to pivot in one direction so that the first latch portion interferes with the second latch portion, thus locking the actuator not to rotate, and when the disk rotates, the spring allows the latch lever to pivot in the opposite direction so that the first latch portion is separated from the second latch portion, thus allowing the actuator to rotate. Thus, a reliable operation of the actuator latch apparatus is available due to the characteristic of the shape memory alloy and the structure of the actuator latch apparatus is simplified.

    摘要翻译: 一种用于数据存储装置的致动器锁定装置,包括安装在数据存储装置的基板上的闩锁杆,其能够枢转并且具有设置在闩锁杆的一个端部处的第一闩锁部分,弹簧连接到另一端部 并且由形状记忆合金制成,以通过根据电力的施加而使闩锁杆沿预定方向枢转;以及第二闩锁部分,其设置在致动器的端部,从而移动读/写 前进到盘的预定位置。 当盘的旋转停止并且致动器停在停车位置时,弹簧允许闩锁杆在一个方向上枢转,使得第一闩锁部分与第二闩锁部分相互干扰,从而锁定致动器不旋转, 并且当盘旋转时,弹簧允许闩锁杆沿相反方向枢转,使得第一闩锁部分与第二闩锁部分分离,从而允许致动器旋转。 因此,由于形状记忆合金的特性,致动器锁定装置的可靠操作是可用的,并且致动器闩锁装置的结构简化。

    Actuator assembly having optimized 4-bar linkage type actuator arm, hard disk drive employing the same, and method for optimizing shape of opening formed in actuator arm
    8.
    发明申请
    Actuator assembly having optimized 4-bar linkage type actuator arm, hard disk drive employing the same, and method for optimizing shape of opening formed in actuator arm 失效
    具有优化的4杆连杆型致动器臂的致动器组件,采用该驱动臂的硬盘驱动器和用于优化在致动器臂中形成的开口形状的方法

    公开(公告)号:US20060092574A1

    公开(公告)日:2006-05-04

    申请号:US11264002

    申请日:2005-11-02

    IPC分类号: G11B5/55

    CPC分类号: G11B5/5552 G11B5/5556

    摘要: An actuator arm of an actuator assembly includes a 4-bar linkage structure defined by a trapezoidal shaped opening formed between a front end of the actuator arm and a pivot shaft. A first rounded extension portion and a second rounded extension portion are formed at two corners adjacent to the pivot shaft of the opening, respectively, and a third rounded extension portion is formed at two corners adjacent to a front end of the opening, and hinges H1, H2, H3 and H4 are formed at the actuator arm by the first, second and third extension portions. Design factors determining a shape of the opening are optimized to meet the following relations for the structure of the 4-bar linkage: W(cos β−1)+Z(cos α−1)=δx=0, W sin β+Z sin α=δy=0.

    摘要翻译: 致动器组件的致动器臂包括由致动器臂的前端和枢转轴之间形成的梯形形状的开口限定的4杆连杆结构。 第一圆形延伸部分和第二圆形延伸部分分别形成在与开口的枢轴相邻的两个角处,并且第三圆形延伸部分形成在与开口的前端相邻的两个角处,铰链H 在致动器臂上由第一,第二和第二个和第二个和第二个,第二,第二,第二,第二,第二,第二, 第三延伸部分。 优化了确定开口形状的设计因子,以满足以下关于4连杆结构的关系:W(cosβ-1)+ Z(cosα-1)=δ× = 0,W sinβ+ Zsinα= delta Y y = 0。

    Apparatus for sensing position of electrostatic XY-stage through time-division multiplexing
    9.
    发明授权
    Apparatus for sensing position of electrostatic XY-stage through time-division multiplexing 失效
    用于通过时分复用来感测静电XY平台的位置的装置

    公开(公告)号:US06515489B2

    公开(公告)日:2003-02-04

    申请号:US09879973

    申请日:2001-06-14

    IPC分类号: G01R2726

    摘要: The apparatus senses the positions of X- and Y- axes of the stage by applying an excitation signal having a phase difference to a stator of each axis of the XY-stage and then time-division detecting changes in capacitance from a moving plate. The apparatus includes: a moveable stage, rotor combs connected to the stage, and stator combs of predetermined axes, wherein differential capacitors are formed between the rotor and stator combs; an amplifier connected to the stage for outputting position information in a time-division manner, in which a time constant is designed so as to prevent interference between position information output from the stage; a sample/hold unit for sampling and holding the time-division position information output from the amplifier in response to a timing control signal; and a controller which outputs a control signal such that the time-division position information from the amplifier can be sampled and held when the information reaches a maximum, reads position information output from the sample/hold unit, and generates excitation signals having different phases to each be applied to a different axis.

    摘要翻译: 该装置通过向XY台的每个轴的定子施加具有相位差的激励信号,然后对来自移动板的电容的变化进行时分检测来感测台的X轴和Y轴的位置。 该装置包括:移动台,连接到台的转子梳和预定轴的定子梳,其中差分电容器形成在转子和定子梳之间; 连接到所述级的放大器,用于以时分方式输出位置信息,其中设计时间常数以防止从所述级输出的位置信息之间的干扰; 采样/保持单元,用于采样和保持响应于定时控制信号从放大器输出的时分位置信息; 以及控制器,其输出控制信号,使得当信息达到最大时可以对来自放大器的时分位置信息进行采样和保持,读取从采样/保持单元输出的位置信息,并产生具有不同相位的激励信号 每个都应用于不同的轴。