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    • 1. 发明授权
    • Slider that dynamically adjusts the head-to-disk spacing in a disk drive
    • Slider可以动态调整磁盘驱动器中的磁盘间距
    • US07724480B1
    • 2010-05-25
    • US11374730
    • 2006-03-14
    • Wei GuoJifang Tian
    • Wei GuoJifang Tian
    • G11B5/56
    • G11B5/6005
    • A disk drive includes a drive circuitry, a storage disk and a slider having a slider body. The storage disk has a data surface, and the slider magnetically interacts with the storage disk to transmit a signal between the storage disk and the drive circuitry. The slider includes a leading surface, an opposed trailing surface, a data transducer positioned near the trailing surface, and a piezoelectric element. The piezoelectric element receives a driving voltage from the drive circuitry to adjust a distance between the data transducer and the data surface. The slider includes a piezoelectric element supporter having a modulus of elasticity of less than that of the slider body and/or the piezoelectric element. In one embodiment, the piezoelectric element supporter is positioned between the slider body and the piezoelectric element and/or the data transducer. Further, in this embodiment, the piezoelectric element may or may not have one or more exposed surfaces.
    • 磁盘驱动器包括驱动电路,存储盘和具有滑块体的滑块。 存储盘具有数据表面,并且滑块与存储盘磁性地相互作用以在存储盘和驱动电路之间传输信号。 滑块包括前表面,相对的后表面,位于后表面附近的数据换能器和压电元件。 压电元件从驱动电路接收驱动电压,以调整数据传感器与数据表面之间的距离。 滑块包括具有小于滑块体和/或压电元件的弹性模量的压电元件支撑件。 在一个实施例中,压电元件支撑件位于滑块体和压电元件和/或数据换能器之间。 此外,在本实施例中,压电元件可以具有或不具有一个或多个暴露表面。
    • 3. 发明授权
    • Slider that dynamically adjusts the head-to-disk spacing in a disk drive
    • Slider可以动态调整磁盘驱动器中的磁盘间距
    • US07773346B1
    • 2010-08-10
    • US11375169
    • 2006-03-14
    • Wei GuoJifang Tian
    • Wei GuoJifang Tian
    • G11B5/60
    • G11B5/6005
    • A disk drive includes a drive circuitry, a storage disk and a slider. The storage disk has a data surface, and the slider magnetically interacts with the storage disk to transmit a signal between the storage disk and the drive circuitry. The slider includes a leading surface, an opposed trailing surface, a data transducer positioned near the trailing surface, and a piezoelectric element. The piezoelectric element receives a driving voltage from the drive circuitry to adjust a distance between the data transducer and the data surface. The piezoelectric element can form a portion of the trailing surface. The slider includes a slider body that forms a portion of the trailing surface, and a portion of the piezoelectric element can be coplanar with the portion of the trailing surface formed by the slider body. Further, at least a portion of the piezoelectric element can be constrained by the slider body. The piezoelectric element can include an exposed surface that is substantially parallel with the leading surface. The slider body can have an element cavity that completely receives the piezoelectric element. In one embodiment, the piezoelectric element has only one substantially planar exposed surface.
    • 磁盘驱动器包括驱动电路,存储盘和滑块。 存储盘具有数据表面,并且滑块与存储盘磁性地相互作用以在存储盘和驱动电路之间传输信号。 滑块包括前表面,相对的后表面,位于后表面附近的数据换能器和压电元件。 压电元件从驱动电路接收驱动电压,以调整数据传感器与数据表面之间的距离。 压电元件可以形成后表面的一部分。 滑块包括形成后表面的一部分的滑块主体,并且压电元件的一部分可以与由滑块体形成的后表面的部分共面。 此外,压电元件的至少一部分可以被滑块体约束。 压电元件可以包括基本上与前表面平行的暴露表面。 滑块体可以具有完全接收压电元件的元件空腔。 在一个实施例中,压电元件仅具有一个基本平坦的露出表面。
    • 5. 发明授权
    • Disk drive servo writing from spiral tracks using radial dependent timing feed-forward compensation
    • 使用径向相关定时前馈补偿从螺旋轨道进行磁盘驱动器伺服写入
    • US08929021B1
    • 2015-01-06
    • US13431680
    • 2012-03-27
    • Jiangang LiangWei Guo
    • Jiangang LiangWei Guo
    • G11B5/596G11B27/32
    • G11B20/14G11B20/10222G11B27/32
    • A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of spiral tracks, wherein each spiral track comprising a high frequency signal interrupted at a predetermined interval by a sync mark. An offset r0 representing a difference between an axial rotation of the disk and an axial rotation of the spiral tracks is estimated. Radial dependent timing compensation values are generated in response to the estimated r0. A phase error is generated in response to the sync marks in the spiral track crossings. A control signal is generated in response to the phase error and the radial dependent timing compensation values, and a frequency of an oscillator is adjusted in response to the control signal.
    • 公开了一种磁盘驱动器,包括在包括多个螺旋轨道的盘上致动的磁头,其中每个螺旋轨道包括以预定间隔以同步标记中断的高频信号。 估计表示盘的轴向旋转与螺旋轨迹的轴向旋转之间的差异的偏移r​​0。 响应于估计的r0产生径向相关定时补偿值。 响应于螺旋轨道交叉中的同步标记产生相位误差。 响应于相位误差和与径向相关的定时补偿值产生控制信号,并且响应于控制信号调整振荡器的频率。