公开(公告)号：US20080124580A1

公开(公告)日：2008-05-29

申请号：US11819426

申请日：2007-06-27

申请人： Takayuki Musashi ,  Yoshiharu Kasamatsu ,  Hiroshi Chiba ,  Jun Watanabe

发明人： Takayuki Musashi ,  Yoshiharu Kasamatsu ,  Hiroshi Chiba ,  Jun Watanabe

IPC分类号： G11B5/187

CPC分类号： G11B21/22 ,  G11B5/3106 ,  G11B5/40 ,  G11B5/54 ,  G11B5/6082 ,  Y10T428/11

摘要： A magnetic disc device includes a magnetic disc, a magnetic head and an actuator. A ramp portion is provided for retracting the magnetic head when recording/reproducing operation is not performed. The ramp portion is arranged on a running path of the magnetic head on an external side of the magnetic disc so that a part of the ramp portion protrudes to an upper part of the outer periphery of the magnetic disc. A load-bar lubrication layer is formed on the surface of a load bar provided at the leading edge of the magnetic head. A head lubrication layer is formed on a head-slider plane of a head slider of the magnetic head. The load-bar lubrication layer reduces a dynamic friction coefficient with the ramp portion surface and suppresses occurrence of abrasion power, and the head lubrication layer suppresses adhesion of abrasion powder to the head-slider plane.

摘要翻译： 磁盘装置包括磁盘，磁头和致动器。 当不执行记录/再现操作时，提供用于缩回磁头的斜坡部分。 斜坡部分布置在磁盘的外侧上的磁头的运行路径上，使得斜坡部分的一部分突出到磁盘的外周的上部。 负载杆润滑层形成在设置在磁头前缘的负载杆的表面上。 磁头润滑层形成在磁头的磁头滑块的磁头 - 滑块平面上。 负载杆润滑层减少与坡道部分表面的动摩擦系数，并抑制磨损力的产生，并且头部润滑层抑制磨损粉末与头 - 滑块平面的粘附。

公开(公告)号：US07365930B2

公开(公告)日：2008-04-29

申请号：US11446044

申请日：2006-06-01

申请人： Nobuyuki Ishii ,  Kazuhisa Murakami ,  Takashi Takenaka ,  Tomoki Hiramatsu

发明人： Nobuyuki Ishii ,  Kazuhisa Murakami ,  Takashi Takenaka ,  Tomoki Hiramatsu

IPC分类号： G11B21/12

CPC分类号： G11B21/12 ,  G11B5/54 ,  G11B21/22

摘要： Formation of wear powder caused by wear of a ramp which is attributable to mutual contact of a lift tab and the ramp is to be reduced in loading and unloading operations. In one embodiment, a spindle motor is turned on by application of power, then the temperature of a ramp is measured and it is determined whether the temperature of the ramp has reached a preset temperature (about 25° C.) or not. If the answer is negative, a heater is energized to heat the ramp for raising the temperature of the ramp. When it is detected that the temperature of the ramp has reached the preset temperature, the heating of the ramp is stopped and the execution of loading and unloading operations is permitted, then an ordinary processing is started.

摘要翻译： 由于升降片和斜坡的相互接触导致的由斜坡磨损引起的磨损粉末的形成将在装载和卸载操作中减少。 在一个实施例中，主轴电动机通过施加电力而被接通，然后测量斜坡的温度，并且确定斜坡的温度是否达到预设温度（约25℃）。 如果答案为负，加热器通电以加热斜坡以提高斜坡的温度。 当检测到斜坡的温度达到预设温度时，停止加热斜坡并允许执行装载和卸载操作，然后开始普通的处理。

公开(公告)号：US07362531B2

公开(公告)日：2008-04-22

申请号：US11324227

申请日：2006-01-04

申请人： Ji-Young Kim

发明人： Ji-Young Kim

IPC分类号： G11B19/02

CPC分类号： G11B5/54 ,  G11B5/5582 ,  G11B19/04 ,  G11B19/08

摘要： A portable wireless communication terminal includes a sensor to detect a movement of the portable wireless communication terminal and output a first signal based on an acceleration of the movement and a second signal based on a velocity of the movement and a controller to control a hard disk drive (HDD) in response to both the first and second signals.

摘要翻译： 便携式无线通信终端包括：传感器，用于检测便携式无线通信终端的移动，并基于移动的加速度输出第一信号;基于移动速度输出第二信号;以及控制器，用于控制硬盘驱动器 （HDD）响应于第一和第二信号。

公开(公告)号：US20080074794A1

公开(公告)日：2008-03-27

申请号：US11525681

申请日：2006-09-22

申请人： SungChang Lee ,  Brian D. Strom

发明人： SungChang Lee ,  Brian D. Strom

IPC分类号： G11B5/48

CPC分类号： G11B5/5552 ,  G11B5/4826 ,  G11B5/483 ,  G11B5/54 ,  G11B5/6058 ,  G11B21/12 ,  G11B21/22

摘要： A pitch actuator coupling to at least the flexure finger of a head gimbal assembly, flexing the flexure finger to alter the pitch angle between slider and disk surface. Operating a head gimbal assembly by stimulating the pitch actuator to alter slider pitch angle and the head gimbal assembly implementing this method. Head stack assembly including at least one head gimbal assembly. CSS hard disk drive and embedded circuit controlling head stack assembly and its motion over disk surface. Manufacturing methods for head gimbal assembly, head stack assembly, embedded circuit and CSS hard disk drive and these items as products of these processes.

摘要翻译： 连接到头部万向节组件的至少挠曲手指的俯仰致动器，弯曲挠曲指状物以改变滑块和盘表面之间的俯仰角。 通过刺激俯仰致动器来改变滑块俯仰角并实现该方法的头部万向节组件来操作头部万向节组件。 头部堆叠组件包括至少一个头部万向架组件。 CSS硬盘驱动器和嵌入式电路控制磁头堆叠组件及其在磁盘表面上的运动。 磁头万向架组装，磁头组装，嵌入式电路和CSS硬盘驱动器的制造方法以及这些工艺的产品。

公开(公告)号：US07342736B1

公开(公告)日：2008-03-11

申请号：US11477033

申请日：2006-06-28

申请人： Robert Turner ,  Richard Martin ,  Christine Green ,  Stephen Perlmutter ,  Devon Dallmann

发明人： Robert Turner ,  Richard Martin ,  Christine Green ,  Stephen Perlmutter ,  Devon Dallmann

IPC分类号： G11B21/02 ,  G11B27/36 ,  G11B19/02

CPC分类号： G11B21/12 ,  G11B5/54

摘要： In some embodiments of the present invention, a disk drive includes a rotatable data storage disk, a head, and a controller. The head is configured to fly on an air cushion relative to a data recording surface of the rotating disk while writing data to the data recording surface responsive to a write command from a host device or while reading data from the data recording surface to generate a read signal responsive to a read command from the host device. The controller is configured to measure flying height of the head relative to the data recording surface of the disk in response to sensing power-up of the disk drive and/or a shut-down command from the host device. The controller may measure the flying height in response to sensing power-up of the disk drive and, subsequent to measuring the flying height, may generate a ready signal to the host computer that indicates that the disk drive has powered-up and is ready to receive read/write commands from the host computer.

摘要翻译： 在本发明的一些实施例中，磁盘驱动器包括可旋转数据存储盘，磁头和控制器。 头部配置成相对于旋转盘的数据记录表面在气垫上飞行，同时响应于来自主机设备的写入命令或者从数据记录表面读取数据以产生读取数据而将数据写入数据记录表面 响应于来自主机设备的读取命令的信号。 控制器被配置为响应于感测到磁盘驱动器的上电和/或来自主机设备的关闭命令来测量磁头相对于磁盘的数据记录表面的飞行高度。 控制器可以响应于感测磁盘驱动器的上电而测量飞行高度，并且在测量飞行高度之后，可以向主计算机生成指示磁盘驱动器已通电并准备好的就绪信号 从主机接收读/写命令。

公开(公告)号：US20070285827A1

公开(公告)日：2007-12-13

申请号：US11758853

申请日：2007-06-06

申请人： Masaki Yamashita ,  Chisako Ota

发明人： Masaki Yamashita ,  Chisako Ota

IPC分类号： G11B21/02

CPC分类号： G11B21/12 ,  G11B5/54

摘要： A disk drive system including retract logic for control of the voice coil motor in a retract operation, in which the voice coil motor positions the read/write head actuator arm in a safe place in a loss-of-power event, is disclosed. The retract logic includes circuitry for controlling the application of power to the voice coil motor from an external capacitor, so that a constant voltage is maintained across the voice coil motor. Current from the capacitor is directed to an internal variable resistor that conducts a selected current, in parallel with the current applied to the voice coil motor. The voltage developed across the variable resistor is applied to one input of a control amplifier, which receives the voltage across the voice coil motor at another input; the control amplifier in turn controls the gate of a low side transistor. The transistor passes current to the extent that the voltage across the voice coil motor corresponds to that developed across the variable resistor.

摘要翻译： 公开了一种磁盘驱动器系统，其包括用于在缩回操作中控制音圈电机的缩回逻辑，其中音圈电机将读/写磁头致动器臂定位在失电事件中的安全位置。 缩回逻辑包括用于控制从外部电容器向音圈电机施加电力的电路，从而在音圈电机两端保持恒定的电压。 来自电容器的电流被引导到内部可变电阻器，该内部可变电阻器与施加到音圈电机的电流并行地传导选定的电流。 跨越可变电阻器产生的电压被施加到控制放大器的一个输入端，该控制放大器在另一个输入端接收音圈电机两端的电压; 控制放大器又控制低侧晶体管的栅极。 晶体管将电流传递到音圈电机两端的电压对应于跨可变电阻器产生的电压。

公开(公告)号：US20070279793A1

公开(公告)日：2007-12-06

申请号：US11421445

申请日：2006-05-31

申请人： Fred R. T. Hansen ,  Brian K. Tanner

发明人： Fred R. T. Hansen ,  Brian K. Tanner

IPC分类号： G11B21/02

CPC分类号： G11B21/12 ,  G11B5/54

摘要： A method and device for parking heads of a disk drive device involves receiving a command to immediately park the heads. A first pulse is provided to a voice coil motor causing the heads to move toward a parked position. After the first pulse, the VCM current is reduced substantially (e.g., close to zero) and back EMF in the voice coil motor is measured to determine speed of the heads. The voice coil motor is iteratively pulsed, and back EMF is measured between pulses to track a desired velocity profile to park the heads.

摘要翻译： 用于盘驱动装置的停放头的方法和装置包括接收立即停放头的命令。 向音圈电机提供第一脉冲，使得磁头朝向停放位置移动。 在第一脉冲之后，VCM电流基本上被减小（例如接近零），并且测量音圈电机中的反电动势以确定磁头的速度。 音圈电动机被迭代地脉冲，并且在脉冲之间测量反向EMF以跟踪期望的速度分布以停放磁头。

公开(公告)号：US07277253B2

公开(公告)日：2007-10-02

申请号：US11358455

申请日：2006-02-21

申请人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

发明人： Satoshi Yamashita ,  Takeshi Hara ,  Yoshifumi Obara

IPC分类号： G11B21/02

CPC分类号： G11B21/12 ,  G11B5/54 ,  G11B21/22

摘要： A storage device configured to load and unload a head against a storage medium, includes a latch mechanism configured to latch the unloaded head, a head moving mechanism configured to move the head, a measuring part configured to measure an unlatch force necessary for unlatching the head latched by the latch mechanism, by applying a constant electrical current to the head mechanism so that the head is moved in a load direction, by measuring a back electromotive voltage, and calculating a moving speed and acceleration of the head, a storing part configured to store information indicating the measured unlatch force in the storage device, and a control part configured to apply a driving electrical current corresponding to the stored information to the head moving mechanism where the head is latched by the latch mechanism at the time of loading.

公开(公告)号：US20070206331A1

公开(公告)日：2007-09-06

申请号：US11707534

申请日：2007-02-16

申请人： Takaaki Deguchi ,  Mutsuro Ohta ,  Shingo Tsuda ,  Taichi Nakamura

发明人： Takaaki Deguchi ,  Mutsuro Ohta ,  Shingo Tsuda ,  Taichi Nakamura

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： Embodiments in accordance with the present invention relate to suppressing deterioration in rigidity and dynamic characteristics of a tab even when an initial point of contact between a tab and a ramp during unloading is set closer to the outer periphery of a disk. A data storage device in one embodiment of the present invention includes a head, a ramp for unloading the head, a load beam having a head support portion for supporting the head and a tab adapted to slide on a sliding surface of the ramp on a front end side with respect to the head support portion, and an actuator having the load beam and adapted to actuate the head for loading and unloading. During unloading, a portion of the tab offset from the center in the transverse direction of the tab first comes into contact with the sliding surface of the ramp. The load beam has a flange formed to be bent and continuously from the front end portion of the tab up to both ends of the head support portion.

摘要翻译： 根据本发明的实施例涉及抑制突片的刚度和动态特性的劣化，即使在卸载期间突片和斜坡之间的初始接触点被设置成更接近盘的外周。 本发明的一个实施例中的数据存储装置包括头部，用于卸载头部的斜面，负载梁，其具有用于支撑头部的头部支撑部分和适于在前部的斜面的滑动表面上滑动的突出部 相对于头部支撑部分的端侧，以及具有负载梁并且适于致动头部用于装载和卸载的致动器。 在卸载期间，从突片的横向方向上的中心偏离的突片的一部分首先与斜面的滑动表面接触。 负载梁具有形成为从凸起的前端部直到头部支撑部的两端连续弯曲的凸缘。

公开(公告)号：US20070206330A1

公开(公告)日：2007-09-06

申请号：US11708092

申请日：2007-02-16

申请人： Takaaki Deguchi ,  Mutsuro Ohta ,  Hiroshi Matsuda ,  Katsuhiko Ohta ,  Shinichi Kimura

发明人： Takaaki Deguchi ,  Mutsuro Ohta ,  Hiroshi Matsuda ,  Katsuhiko Ohta ,  Shinichi Kimura

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： Embodiments in accordance with the present invention provide achieve an increase of storage capacity and thinning down of a disk drive by reducing effects from an error in an assembly position of a ramp. A data storage device according to an embodiment of the present invention includes a head, a ramp, a load beam, and an actuator. The ramp includes a portion onto which the head is retracted from a surface of a medium. The load beam includes a head support portion that supports the head and a tab disposed more on the side of a leading end than the head support portion. The tab has a leading end that slides over, while being in contact with, a sliding surface of the ramp. The actuator includes the load beam and loads and unloads the head.

摘要翻译： 根据本发明的实施例通过减少斜坡的组装位置的误差的影响来提供存储容量的增加和磁盘驱动器的减薄。 根据本发明的实施例的数据存储装置包括头，斜坡，负载梁和致动器。 斜坡包括头部从介质的表面缩回到其上的部分。 负载梁包括支撑头部的头部支撑部分和更多地设置在比头部支撑部分的前端侧的突出部。 突片具有在与斜面的滑动表面接触的同时滑动的前端。 执行器包括负载梁，并负载和卸载头部。