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61. 发明申请

US20020145817A1 Circumferential positioning of servo sectors for servo track writing 失效
标题翻译：伺服扇区对伺服轨迹写入的周期定位
公开(公告)号：US20020145817A1
公开(公告)日：2002-10-10
申请号：US09917065
申请日：2001-07-26
申请人： Seagate Technology LLC
发明人： Gabor Szita , Lawrence Matthias Bryant , Karl Arnold Belser , Alan Fennema
IPC分类号： G11B005/09 , G11B021/02
CPC分类号： G11B21/106 , G11B5/59633
摘要： A propagating method is provided in which timing and servo sector information is propagated throughout a data storage media that initially contains only a guide pattern. The method uses an offset between the write element and the read element in a read/write head to position and propagate the timing information. In addition, a method for circumferentially aligning timing and servo sector information is disclosed that utilizes a time delay to position the propagated timing and servo sector information. Another method for attenuating timing errors during timing and servo sector propagation to a data storage media is disclosed. Timing errors are attenuated through the use of phase locked loop circuit and measurement of the phase error detected between different tracks on the data storage media. Apparatuses implementing the methods including a storage device readable by a computer system that implements the methods are provided.
摘要翻译：提供传播方法，其中定时和伺服扇区信息在最初仅包含引导图案的数据存储介质中传播。该方法使用读/写头中的写元件和读元件之间的偏移来定位和传播定时信息。此外，公开了一种用于周期地对准定时和伺服扇区信息的方法，其利用时间延迟来定位传播的定时和伺服扇区信息。公开了在定时和伺服扇区传播到数据存储介质期间衰减定时误差的另一种方法。定时误差通过使用锁相环电路和测量在数据存储介质上的不同轨道之间检测到的相位误差来衰减。提供实现包括实现该方法的计算机系统可读的存储装置的方法的装置。

62. 发明申请

US20020141104A1 Servo control method and servo control system for magnetic disc drive 审中-公开
标题翻译：磁盘驱动器的伺服控制方法和伺服控制系统
公开(公告)号：US20020141104A1
公开(公告)日：2002-10-03
申请号：US10043082
申请日：2002-01-09
发明人： Kiminori Sato , Yukihiro Takano
IPC分类号： G11B005/596 , G11B021/02
CPC分类号： G11B5/59627
摘要： A hard disc drive employs the self-servo-writing technique that writes practical servo signals on a hard disc based on the temporary servo signals written on the hard disc in advance, includes a holding mechanism that mechanically holds a rotary positioner, a memory which stores an eccentricity signal obtained while the holding mechanism is holding the rotary positioner, and a feedback compensator. The hard disc drive uses the stored eccentricity signal for a reference signal d*, calculates the difference between the reference signal d* and a head position signal xnulld, obtains a positioner drive signal in the feedback compensator from the positional error based on the difference, and positions the magnetic head based on the positioner drive signal.
摘要翻译：硬盘驱动器采用基于写在硬盘上的临时伺服信号在硬盘上写实际的伺服信号的自伺服写入技术，包括机械地保持旋转定位器的保持机构，存储器在保持机构保持旋转定位器的同时获得的偏心信号，以及反馈补偿器。硬盘驱动器使用存储的偏心信号作为参考信号d *，计算参考信号d *与磁头位置信号x + d之间的差值，从位置误差得到反馈补偿器中的定位器驱动信号，基于并根据定位器驱动信号定位磁头。

63. 发明申请

US20020141101A1 Method and device for retracting an actuator 失效
标题翻译：用于缩回执行器的方法和装置
公开(公告)号：US20020141101A1
公开(公告)日：2002-10-03
申请号：US10021883
申请日：2001-12-13
申请人： Seagate Technology LLC
发明人： Rodney Brittner , Paul J. Throckmorton
IPC分类号： G11B021/02 , G11B005/596
CPC分类号： G11B21/12 , G11B5/54
摘要： An actuator retract system and method for moving read/write heads from data regions on discs to non-data locations in a disc drive is disclosed. The non-data locations may be on or in close proximity to the discs. The non-data locations may be a landing zone or a load/unload ramp. At disc drive power-down, power generated from the rotational inertia in rotating discs is used to supply a current to a coil of a voice coil motor operably coupled to the actuator. The current generates an electric field around the coil that interacts with a magnetic field in the voice coil motor to move the actuator such that the read/write heads are retracted to the non-data location.
摘要翻译：公开了一种用于将读/写头从盘上的数据区移动到盘驱动器中的非数据位置的致动器缩回系统和方法。非数据位置可以在光盘上或靠近光盘。非数据位置可以是着陆区域或加载/卸载斜坡。在磁盘驱动器掉电时，由旋转盘中的旋转惯性产生的功率用于向可操作地耦合到致动器的音圈电机的线圈提供电流。电流产生线圈周围的电场，其与音圈电机中的磁场相互作用以移动致动器，使得读/写头缩回到非数据位置。

64. 发明申请

US20020141098A1 TIME DOMAIN VOICE COIL MOTOR CONTROL CIRCUIT AND METHOD 有权
标题翻译：时域语音线圈电机控制电路及方法
公开(公告)号：US20020141098A1
公开(公告)日：2002-10-03
申请号：US09159072
申请日：1998-09-21
发明人： KARL MICHAEL SCHLAGER
IPC分类号： G11B021/02
CPC分类号： G11B21/12 , G11B21/02 , H02P25/034
摘要： An embodiment of the present invention includes a method for driving a voice coil motor in response to signals from a feedback network that senses voice coil motor velocity. The method includes steps of providing a drive signal to an H-bridge for a first interval. At the end of the first interval, the H-bridge is placed in a high impedance state. Following a pause for a second interval during which transient voltages extinguish, a sample and hold circuit is coupled to the voice coil motor. The sample and hold circuit measures a voltage from the voice coil motor that is directly proportional to voice coil motor velocity and thus is directly related to head velocity. After the sample and hold circuit measures the voice coil motor voltage, the input to the sample and hold circuit is disabled. An output signal from the sample and hold circuit is coupled to the feedback network and thus to the H-bridge. As a result, voice coil motor and head velocity is more accurately controlled, reducing probability of collision between heads and discs in a disc drive and thereby increasing reliability of the disc drive.
摘要翻译：本发明的一个实施例包括响应于感测音圈电机速度的反馈网络的信号来驱动音圈电机的方法。该方法包括以下步骤：向第一间隔的H桥提供驱动信号。在第一个间隔结束时，H桥被置于高阻抗状态。在瞬时电压熄灭的第二间隔暂停之后，采样和保持电路耦合到音圈电机。采样和保持电路测量来自音圈电机的与音圈电机速度成正比的电压，因此与磁头速度直接相关。采样保持电路测量音圈电机电压后，采样保持电路的输入被禁止。来自采样和保持电路的输出信号耦合到反馈网络，从而耦合到H桥。结果，音圈电机和磁头速度被更精确地控制，从而降低磁盘驱动器中的磁头与磁盘之间的碰撞概率，从而提高磁盘驱动器的可靠性。

65. 发明申请

US20020135924A1 Multi-phase acceleration of a data storage disc 有权
标题翻译：数据存储盘的多相加速
公开(公告)号：US20020135924A1
公开(公告)日：2002-09-26
申请号：US09982366
申请日：2001-10-17
申请人： Seagate Technology LLC
发明人： Serge Jacques Fayeulle
IPC分类号： G11B015/46 , G11B021/02
CPC分类号： G11B19/20 , G11B5/54 , G11B21/083
摘要： A disc drive having a multi-phase acceleration procedure is disclosed. The multi-phase acceleration procedure accelerates a data storage disc in the disc drive from an initial rotational velocity to a final rotational velocity. As the disc reaches the final rotational velocity, a read/write head operable to access data on the disc is moved by a servo control system from a landing zone to a data region on the disc. An air bearing between a slider of the read/write head and the surface of the disc is created due to the final rotational velocity of the spinning disc. The read/write head may also be moved from the landing zone as the disc reaches an early exit rotational velocity. As such, the multi-phase acceleration procedure continues accelerating the disc until the final rotational velocity to guarantee that the air bearing is maintained between the head and the disc.
摘要翻译：公开了一种具有多相加速程序的磁盘驱动器。多相加速过程将盘驱动器中的数据存储盘从初始旋转速度加速到最终旋转速度。当光盘达到最终旋转速度时，可操作以访问盘上的数据的读/写头由伺服控制系统从着陆区移动到盘上的数据区。由于旋转盘的最终旋转速度，在读/写头的滑块与盘的表面之间产生空气轴承。当光盘达到早期的出口旋转速度时，读/写头也可以从着陆区移动。因此，多相加速过程继续加速盘直到最终旋转速度，以确保空气轴承保持在头部和盘之间。

66. 发明申请

US20020126411A1 Portable equipment incorporating magnetic disk device 失效
标题翻译：带有磁盘装置的便携式设备
公开(公告)号：US20020126411A1
公开(公告)日：2002-09-12
申请号：US10080315
申请日：2002-02-21
发明人： Tsutomu Ito
IPC分类号： G11B021/02
CPC分类号： G11B21/02
摘要： In order to avoid destruction of recorded data on the magnetic disk due to a shock when portable equipment incorporating a magnetic disk falls from a person's hand or similar, or to minimize damage to the magnetic head and magnetic disk device, in the portable equipment incorporating a magnetic disk device, the magnetic disk device 1 is provided with a magnetic head retraction mechanism and with a held-in-hand detection mechanism which detects whether the equipment is held in a person's hand. When the held-in-hand detection mechanism detects that the equipment is not held in a person's hand, the retraction mechanism causes the magnetic head 5 to be retracted from the recorded data portion of the magnetic disk 3 to the outside, so as to protect the magnetic disk device 1 and the data recorded on the magnetic disk from shocks.
摘要翻译：为了避免在携带有磁盘的便携式设备从人的手或类似物落下时由于冲击而使磁盘上的记录数据的破坏，或者将磁头和磁盘装置的损坏降到最小的程度，在磁盘装置1中，磁盘装置1设置有磁头缩回机构，并且具有检测设备是否保持在人的手中的手持式检测机构。当握持检测机构检测到设备未被握在人的手中时，缩回机构使得磁头5从磁盘3的记录数据部分缩回到外部，以便保护磁盘装置1和记录在磁盘上的数据不受冲击。

67. 发明申请

US20020097663A1 Piezoelectric microactuator for improved tracking control of disk drive read/write heads 失效
标题翻译：用于改进磁盘驱动器读/写磁头的跟踪控制的压电微致动器
公开(公告)号：US20020097663A1
公开(公告)日：2002-07-25
申请号：US09766749
申请日：2001-01-22
发明人： Conal O'Neill
IPC分类号： G11B017/30 , G11B021/02 , G11B005/56 , G11B021/24
CPC分类号： G11B5/5552 , G11B5/483
摘要： A disc drive actuation system for precisely positioning a read/write head over a selected track of a rotatable disc. The actuation system comprises a flexure, a slider, and a read/write head firmly attached to the slider. A first drive unit is used to pivot the flexure to position the read/write head approximately over a selected track. A microactuator is mounted to the flexure and the slider is mounted to the microactuator. The microactuator comprises an inner inactive region, a first outer inactive region, a second outer inactive region, a first piezoelectric section mounted between the first outer inactive region and the inner inactive region, and a second piezoelectric section mounted between the second outer inactive region and the inner inactive region. The inner inactive region is firmly attached to either the flexure or the slider and both of the outer inactive regions are firmly attached to the other of the flexure or the slider. Also, there is an electrical circuit for energizing the first and the second piezoelectric sections to cause them to expand and contract in order to precisely position the read/write head over the selected track. The circuit and the piezoelectric sections are configured such that the first piezoelectric section expands when the second piezoelectric section contracts and the first piezoelectric section contracts when the second piezoelectric section expands. Since the microactuator has to only overcome the inertial mass of the slider and a portion of its own inertial mass, very precise control at high frequency is possible.
摘要翻译：一种用于将读/写头精确地定位在可旋转盘的选定轨道上的盘驱动器致动系统。致动系统包括挠性件，滑块和牢固地附接到滑块的读/写头。第一驱动单元用于枢转挠曲件以将读/写头大致位于所选轨道上。微型致动器安装到挠曲件上，滑块安装在微型致动器上。微致动器包括内部无效区域，第一外部无效区域，第二外部非活性区域，安装在第一外部非活性区域和内部非活性区域之间的第一压电区段和安装在第二外部非活性区域和第二外部非活性区域之间的第二压电区段，内部无效区域。内部非活动区域牢固地附接到挠曲件或滑块上，并且两个外部非活动区域牢固地附接到挠曲件或滑块中的另一个。此外，存在用于激励第一和第二压电部分以使它们膨胀和收缩以便将读/写头精确地定位在所选轨迹上的电路。电路和压电部分被构造成使得当第二压电部分收缩时第一压电部分膨胀，并且第一压电部分在第二压电部分膨胀时收缩。由于微致动器必须仅克服滑块的惯性质量和自身惯性质量的一部分，所以在高频下的非常精确的控制是可能的。

68. 发明申请

US20020097513A1 Write head collision detection using MR read element in disc drives 有权
标题翻译：使用磁盘驱动器中的MR读取元件进行头部碰撞检测
公开(公告)号：US20020097513A1
公开(公告)日：2002-07-25
申请号：US09896359
申请日：2001-06-29
发明人： WeiLoon Ng , Myint Ngwe , QuekLeong Choo , EngHock Lim , KokHoe Chia , CheeWai Lum
IPC分类号： G11B027/36 , G11B021/02
CPC分类号： G11B27/36 , G11B5/012 , G11B5/59683 , G11B21/21 , G11B33/10 , G11B2005/0016 , G11B2220/20
摘要： An apparatus and associated method for detecting head collision with disc media, or other matter, during a write operation is disclosed. The method and apparatus generally monitor the resistance of an MR element on the head in order to detect a temperature increases indicative of a head collision. The resistance can be compared to a pre-selected threshold to generate an output indicative of head collision.
摘要翻译：公开了一种用于在写入操作期间用于检测与盘介质的头部碰撞或其他事项的装置和相关联的方法。该方法和装置通常监测磁头上的MR元件的电阻，以便检测指示磁头碰撞的温度升高。可以将电阻与预先选择的阈值进行比较以产生指示头部碰撞的输出。

69. 发明申请

US20020093753A1 Method and apparatus for avoiding collision of head in disk drive 审中-公开
标题翻译：避免磁头驱动器中磁头碰撞的方法和装置
公开(公告)号：US20020093753A1
公开(公告)日：2002-07-18
申请号：US10021314
申请日：2001-12-19
发明人： Masaru Atsumi
IPC分类号： G11B021/02 , G11B015/46 , G11B019/02
CPC分类号： G11B21/21
摘要： A disk drive is disclosed which provides a function of restoring a flying head to its normal flying state in the event that the head comes into contact with the surface of a rotating disk due to disturbance and if recovery from the contact state is allowed. When contact or collision of the head with the disk is detected by a collision monitor, a CPU determines whether or not recovery from the contact state is possible on the basis of the condition of disturbance detected by a sensor. The CPU, on determining that recovery from the contact state is possible, carries out a contact avoidance operation to restore the head to its normal flying state.
摘要翻译：公开了一种磁盘驱动器，其提供了在头部由于干扰而与旋转盘的表面接触并且如果允许从接触状态恢复的情况下，将飞头恢复到其正常飞行状态的功能。当通过碰撞监视器检测到磁头与磁盘的接触或碰撞时，CPU基于由传感器检测到的干扰状况来确定是否可以从接触状态恢复。在确定从接触状态的恢复是可能的情况下，CPU执行接触回避操作以将头恢复到正常的飞行状态。

70. 发明申请

US20020075786A1 Mirrors drive device 失效
标题翻译：镜子驱动装置
公开(公告)号：US20020075786A1
公开(公告)日：2002-06-20
申请号：US10021652
申请日：2001-12-12
申请人： Olympus Optical Co., Ltd.
发明人： Tetsuo Ikegame
IPC分类号： G11B017/30 , G11B021/02
CPC分类号： G02B6/3572 , G02B6/32 , G02B6/3512 , G02B6/3518 , G02B6/3556 , G02B6/3582 , G02B6/3588 , G02B7/1821 , G02B26/085 , G11B7/08564
摘要： The present invention is constituted so as to enable a reduction in the number of parts of drive mechanisms of a plurality of movable members by mounting mirrors, which reflect light, respectively to holders and other movable members, which are capable of rotating around a prescribed axis, by means of springs, and, in addition, attaching coils respectively to the movable member sides as drive mechanisms for magnetically driving the respective movable members, and attaching rod-shaped magnets, the magnetic field of which acts in common with respective coils, in the members of one stator side.
摘要翻译：本发明构成为能够通过将反射光分别安装到能够围绕预定轴线旋转的保持器和其他可动部件的反射镜来减少多个可动部件的驱动机构的部件数量，另外，分别将线圈分别附接到可动件侧，作为用于磁性驱动各个可移动部件的驱动机构，以及将其磁场与各个线圈共同作用的杆状磁体连接在一个定子侧的构件。

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