利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

131 条记录 (耗时 0.071 秒)

    Multi-Dimensional Layered Pulse Motor
    7.
    发明申请
    Multi-Dimensional Layered Pulse Motor 审中-公开

    公开(公告)号：US20190036433A1

    公开(公告)日：2019-01-31

    申请号：US16071912

    申请日：2017-02-18

    申请人： Neil Smith

    发明人： Neil Smith

    IPC分类号： H02K21/24 ,  H02K7/00 ,  H02K7/08 ,  H02P3/10 ,  H02P3/14 ,  B60L7/10 ,  B60K7/00

    摘要： A pulse hub motor having coils (101) and magnets (107) interacting three dimensionally in x, y, and z axes to facilitate both increased power and efficiency through the ability to have more coils (101) in the motor, have each coil (101) perform both push and pull functions, and yet have the flexibility to only use the amount of coils (101) needed for real-time power requirements, whilst regenerating power in both normal drive and braking modes.

    IMPLEMENTING SPIN-TORQUE OSCILLATOR SENSING WITH ENHANCED INTEGRATED DEMODULATOR FOR HARD DISK DRIVES
    8.
    发明申请
    IMPLEMENTING SPIN-TORQUE OSCILLATOR SENSING WITH ENHANCED INTEGRATED DEMODULATOR FOR HARD DISK DRIVES 有权
    用于硬盘驱动器的增强型集成式解调器实现旋转振动振荡器感应

    公开(公告)号：US20130148224A1

    公开(公告)日：2013-06-13

    申请号：US13316419

    申请日：2011-12-09

    申请人： Patrick Mesquita Braganca ,  Richard Leo Galbraith ,  Bruce Alvin Gurney ,  Neil Smith ,  Bruce Wilson ,  Rehan Ahmed Zakai

    发明人： Patrick Mesquita Braganca ,  Richard Leo Galbraith ,  Bruce Alvin Gurney ,  Neil Smith ,  Bruce Wilson ,  Rehan Ahmed Zakai

    IPC分类号： G11B20/06

    CPC分类号： H03D3/009 ,  G11B20/10018 ,  G11B20/10027 ,  G11B2220/2516

    摘要： A method, apparatus, and system are provided for implementing spin-torque oscillator sensing with an enhanced integrated demodulator for hard disk drives. The demodulator receives an input signal from a STO read sensor having an oscillation frequency ω related to the strength of the detected magnetic signal field. The demodulator includes a pair of mixers coupled to a quadrature reference oscillator with respective quadrature components cos(ω0t), and sin(ω0t) of the quadrature reference oscillator being mixed with a received input signal to form signals at the sum and difference frequencies, ω±ω0. Each of these mixer products is lowpass filtered by a respective a lowpass filter to remove the sum frequency components for providing a demodulator output signal that is directly proportional the STO oscillation frequency ω. The demodulator output signal is used for processing by data detection electronics.

    摘要翻译： 提供了一种用于通过用于硬盘驱动器的增强型集成解调器来实现自旋扭矩振荡器感测的方法，装置和系统。 解调器接收来自具有与所检测的磁信号场的强度相关的振荡频率ω的STO读取传感器的输入信号。 解调器包括耦合到具有相应正交分量cos（ωωt）的正交参考振荡器的正交参考振荡器对，并且正交基准振荡器的sin（ω0t）与接收的输入信号混合以形成和频率和差频率ω ±omega0。 这些混频器产品中的每一个由相应的低通滤波器进行低通滤波，以去除和频分量，以提供与STO振荡频率ω直接成比例的解调器输出信号。 解调器输出信号用于数据检测电子设备的处理。

    Magnetoresistance (MR) read elements having an active shield
    9.
    发明授权
    Magnetoresistance (MR) read elements having an active shield 有权
    磁阻（MR）读取元件具有主动屏蔽

    公开(公告)号：US08305715B2

    公开(公告)日：2012-11-06

    申请号：US11965532

    申请日：2007-12-27

    申请人： Daniele Mauri ,  Neil Smith

    发明人： Daniele Mauri ,  Neil Smith

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3912

    摘要： Read elements and associated methods of fabrication are disclosed. A read element as described herein includes a magnetoresistance (MR) sensor sandwiched between first and second shields. The read element uses the first shield as an active portion of the MR sensor. Instead of implementing an AFM pinning layer in the MR sensor, the first shield takes the place of the AFM pinning layer. The first shield is orthogonally coupled to the pinned layer through an orthogonal coupling layer, such as a thin layer of AFM material. Through this structure, the magnetic moment of the first shield pins the magnetic moment of the pinned layer transverse to the ABS of the read element, and an AFM pinning layer is not needed.

    摘要翻译： 公开了读取元件和相关联的制造方法。 如本文所述的读取元件包括夹在第一和第二屏蔽之间的磁阻（MR）传感器。 读取元件使用第一屏蔽作为MR传感器的有效部分。 代替在MR传感器中实现AFM钉扎层，第一个屏蔽取代了AFM钉扎层。 第一屏蔽层通过正交耦合层（例如AFM材料的薄层）与被钉扎层正交耦合。 通过这种结构，第一屏蔽的磁矩将钉扎层的磁矩横向于读取元件的ABS，并且不需要AFM钉扎层。

    AP FREE LAYER CPP SENSOR WITH TOP APERTURE
    10.
    发明申请
    AP FREE LAYER CPP SENSOR WITH TOP APERTURE 有权
    AP自由层CPP传感器与顶级APERTURE

    公开(公告)号：US20090154027A1

    公开(公告)日：2009-06-18

    申请号：US11957466

    申请日：2007-12-16

    申请人： Hamid Balamane ,  Jeffrey R. Childress ,  Robert E. Fontana, JR. ,  Jordan A. Katine ,  Neil Smith

    发明人： Hamid Balamane ,  Jeffrey R. Childress ,  Robert E. Fontana, JR. ,  Jordan A. Katine ,  Neil Smith

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3932 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3912 ,  G11B2005/3996

    摘要： Read sensors and associated methods of fabrication are disclosed. A read sensor as disclosed herein includes a first shield, a sensor stack including an antiparallel (AP) free layer, and insulating material disposed on the sensor stack. A aperture is formed through the insulating material above the sensor stack so that a subsequently deposited second shield is electrically coupled to the sensor stack through the aperture. The width of the aperture controls the current density that is injected into the top of the sensor stack. Also, hard bias structures may be formed to be electrically coupled to the sensor stack. The electrical coupling of the sensor stack and the hard bias structures allows current to laterally spread out as it passes through the sensor stack, and hence, provides a non-uniform current density.

    摘要翻译： 公开了传感器和相关的制造方法。 本文公开的读取传感器包括第一屏蔽层，包括反平行（AP）自由层的传感器堆叠以及设置在传感器堆叠上的绝缘材料。 通过传感器堆叠上方的绝缘材料形成孔，使得随后沉积的第二屏蔽件通过孔电耦合到传感器堆叠。 光圈的宽度控制注入到传感器叠层顶部的电流密度。 此外，可以形成硬偏置结构以电耦合到传感器堆叠。 传感器堆叠和硬偏置结构的电耦合允许电流在其通过传感器堆叠时横向展开，因此提供不均匀的电流密度。