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41. 发明授权

US06972919B2 Increasing head-disk interface reliability using controlled heating 有权
公开(公告)号：US06972919B2
公开(公告)日：2005-12-06
申请号：US10656023
申请日：2003-09-05
申请人： Mike Suk
发明人： Mike Suk
IPC分类号： G11B5/58 , G11B5/60 , G11B21/02 , G11B21/21 , G11B27/36
CPC分类号： G11B27/36 , G11B5/58 , G11B5/607 , G11B21/21 , G11B2220/20
摘要： A method for increasing reliability during a read and/or write operation in a disk drive having a head. Data is read from a disk using a head. An amplitude of a signal obtained during reading the data is measured. A degree of variation in the signal amplitude is determined as a function of a position of the head relative to the disk. The head is selectively heated based on the variation in the signal amplitude for inducing protrusion of the head, thereby selectively reducing a fly height of the head for reducing variations of a read signal created by the head during a read operation and/or magnetic fields created by the head during a write operation.

42. 发明申请

US20050218890A1 Method for controlling a burnish cycle to minimize cycle time 失效
标题翻译：控制抛光循环以最小化循环时间的方法
公开(公告)号：US20050218890A1
公开(公告)日：2005-10-06
申请号：US10813562
申请日：2004-03-30
申请人： Walton Fong , Donald Gillis , Vedantham Raman , Kris Schouterden , Mike Suk
发明人： Walton Fong , Donald Gillis , Vedantham Raman , Kris Schouterden , Mike Suk
IPC分类号： G11B5/10 , G11B5/31 , G11B27/36
CPC分类号： G11B5/102 , G11B5/3166
摘要： A method for controlling a burnish cycle to minimize cycle time is disclosed. MR sensor resistance measurements are used to monitor interference with the recording surface and when clearance is not detected, steps are taken to fine tune the interference signal.
摘要翻译：公开了一种控制抛光循环以最小化循环时间的方法。 MR传感器电阻测量用于监测与记录表面的干扰，并且当没有检测到间隙时，采取步骤来微调干扰信号。

43. 发明授权

US06937419B2 Method and apparatus for recovering load/unload zone real estate on data storage media in data storage devices to increase a data storage capacity thereof 失效
标题翻译：用于在数据存储设备中的数据存储介质上恢复加载/卸载区域空间以增加其数据存储容量的方法和装置
公开(公告)号：US06937419B2
公开(公告)日：2005-08-30
申请号：US10385097
申请日：2003-03-10
申请人： Mike Suk , Donald R. Gillis
发明人： Mike Suk , Donald R. Gillis
IPC分类号： G11B5/738 , G11B5/54 , G11B5/60 , G11B20/10 , G11B20/12 , G11B20/18 , G11B21/10 , G11B21/12 , G11B21/21 , G11B21/22 , G11B21/02
CPC分类号： G11B21/12 , G11B5/54 , G11B21/22
摘要： A hard disk drive utilizes hard disks that recover the historically unused read/write space or real estate located in the load/unload zone. Approximately one-half of the load/unload zone is recovered and available for reading and writing operations by forming a first or radially outermost read/write track beginning immediately adjacent to the inner radial edge of the load/unload zone and proceeding radially inward from there to the conventional location of first tracks in the prior art. In another version of the invention, almost the entire load/unload zone is recovered and available for reading and writing operations by aligning the first track with the center of the load/unload zone and proceeding radially inward from there as described above. Both of these versions make significant additional surface area on the disk available where, in the prior art, no data was stored, thereby increasing the efficiency and storage capacity of the hard disk drive.
摘要翻译：硬盘驱动器使用恢复历史上未使用的读/写空间或位于加载/卸载区域中的不动产的硬盘。大约一半的装载/卸载区域被恢复并且可用于读取和写入操作，通过形成第一或径向最外面的读/写轨迹，该第一或径向最外面的读取/写入轨迹紧邻加载/卸载区域的内部径向边缘并且从该位置向内径向向内到现有技术中的第一轨道的常规位置。在本发明的另一个版本中，如上所述，通过将第一轨道与负载/卸载区域的中心对准并从其径向向内延伸，几乎整个加载/卸载区域被恢复并且可用于读取和写入操作。这两个版本都在磁盘上显着增加了表面积，在现有技术中，没有存储数据，从而提高了硬盘驱动器的效率和存储容量。

44. 发明授权

US06683743B2 Method for controlling the velocity of an actuator arm in a hard disk drive 失效
标题翻译：用于控制硬盘驱动器中的致动器臂的速度的方法
公开(公告)号：US06683743B2
公开(公告)日：2004-01-27
申请号：US09758415
申请日：2001-01-10
申请人： Donald Ray Gillis , Mike Suk , Kris Victor Schouterden
发明人： Donald Ray Gillis , Mike Suk , Kris Victor Schouterden
IPC分类号： G11B2102
CPC分类号： G11B5/5521
摘要： A method for controlling the velocity of an actuator arm in a hard disk drive includes moving the actuator arm to an inner limit or outer limit of motion. Then the power to the actuator coil, which drives the actuator arm, is reduced to zero and the actuator arm is released. Bends in the flexible cable connected to the actuator arm can cause the actuator arm to move toward the outer limit of motion. As the actuator arm moves due to the flexible cable, the velocity contribution of the flexible cable is measured and stored. Thereafter, the velocity of the actuator arm, during emergency power shut off, normal unload of the disk drive, or normal load of the disk drive, is decreased or increased by an amount equal to the cable-induced velocity to compensate for the velocity contribution of the flexible cable.
摘要翻译：用于控制硬盘驱动器中的致动器臂的速度的方法包括将致动器臂移动到内部极限或外部极限。然后驱动致动器臂的致动器线圈的电力减小到零，并且致动器臂被释放。连接到执行器臂的柔性电缆中的弯曲可以使致动器臂朝向外部运动极限移动。由于柔性电缆使致动器臂移动，测量并存储柔性电缆的速度贡献。此后，在应急电源关闭期间，致动器臂的速度，磁盘驱动器的正常卸载或盘驱动器的正常负载被减小或增加等于电缆引起的速度的量以补偿速度贡献的柔性电缆。

45. 发明授权

US06680811B2 System and method for enhancing load/unload performance of low-flying heads in a disk drive 有权
标题翻译：用于提高磁盘驱动器中低飞头的加载/卸载性能的系统和方法
公开(公告)号：US06680811B2
公开(公告)日：2004-01-20
申请号：US09973296
申请日：2001-10-09
申请人： Donald R. Gillis , Mike Suk
发明人： Donald R. Gillis , Mike Suk
IPC分类号： G11B2102
CPC分类号： G11B5/6005 , G11B5/54 , G11B21/12 , G11B21/21 , G11B21/22
摘要： A disk drive utilizes a slider that is designed to fly very high or well above the surface of the disk when loading onto the disk and until a reading or writing operation requires the head to go to a relatively low-flying position with respect to the disk. Thus, the slider has two or more altitudes at which it flies depending on the operating conditions of the disk drive. The different altitudes of the slider are achieved by adjusting three primary variables: the rotational speed of the disk, selecting the radial position of the slider/actuator arm, and by the gram load. Other factors that may be used to tune this performance include pitch static attitude, pitch stiffness, and air bearing surface design.
摘要翻译：磁盘驱动器使用的滑块被设计成在加载到磁盘上时非常高或高于磁盘表面的滑块，并且直到读取或写入操作需要磁头相对于磁盘的相对低的飞行位置。因此，滑块具有取决于盘驱动器的操作条件而飞行的两个或更多个高度。滑块的不同高度通过调整三个主要变量：盘的旋转速度，选择滑块/致动器臂的径向位置以及克负载来实现。可用于调整性能的其他因素包括俯仰静态，俯仰刚度和空气轴承表面设计。

46. 发明授权

US06549378B2 Magnetic disk drive with offset load/unload tab 失效
公开(公告)号：US06549378B2
公开(公告)日：2003-04-15
申请号：US09764764
申请日：2001-01-16
申请人： Mike Suk , Donald Ray Gillis
发明人： Mike Suk , Donald Ray Gillis
IPC分类号： G11B554
CPC分类号： G11B5/54
摘要： The present invention is a magnetic disk drive for reading or writing magnetically, comprising: (i) a base; (ii) one or more magnetic disks; (iii) a hub fixedly attached to the disk(s) for supporting the disk(s); (iv) a motor operable to rotate the hub; (v) a plurality of magnetic read/write heads, each associated with the surface of a disk; (vi) one or more actuators for supporting the heads and moving the heads across the disks, each actuator having a load/unload tab at its distal end adjacent to the inner diameter side of the actuator; and (vii) a load/unload structure for displacing the heads from the disk comprising a plurality of ramps.

47. 发明授权

US06266199B1 Method of apparatus to characterize and limit the effect of disk damage in a hard disk drive 失效
标题翻译：用于表征和限制硬盘驱动器中磁盘损坏的影响的装置的方法
公开(公告)号：US06266199B1
公开(公告)日：2001-07-24
申请号：US09313832
申请日：1999-05-18
申请人： Donald Ray Gillis , Richard Mark Kroeker , Mike Suk , Reinhard Ferdinand Wolter
发明人： Donald Ray Gillis , Richard Mark Kroeker , Mike Suk , Reinhard Ferdinand Wolter
IPC分类号： G11B2736
CPC分类号： G11B27/36 , G11B5/012 , G11B19/04 , G11B20/10009 , G11B2005/001 , G11B2220/20
摘要： A method and apparatus for monitoring the quality of the readback signal of data written on a magnetic recording disk in a disk drive and for limiting data loss due to physical damage at a slider/disk interface. The amplitude of a read signal is continuously monitored in the read channel, either by directly measuring the read signal amplitude or by monitoring the amplification level of the automatic gain control (AGC) circuit in the read channel which is inversely proportional to the read signal amplitude. If the amplitude of the monitored read signal decreases below a chosen level, the location of the data on the disk track is flagged as possibly damaged. The data is rewritten at the same location and then reread to see if full recovery of the degraded data is possible. If the amplitude read signal of the rewritten data is greater than a chosen level, the disk track is judged to be usable and normal operation continues. If the amplitude of the rewritten data read signal is less than the chosen level, permanent damage of the location on the data track is assumed and the data is rewritten at a new location on the magnetic recording disk.
摘要翻译：一种用于监视写入磁盘驱动器中的磁记录盘上的数据的回读信号的质量的方法和装置，并且用于限制由于滑块/磁盘接口处的物理损坏造成的数据丢失。读取信号的幅度在读取通道中被连续地监视，通过直接测量读取的信号幅度，或通过监视与读取的信号幅度成反比的读取通道中的自动增益控制（AGC）电路的放大电平，。如果监视的读取信号的幅度降低到低于所选择的电平，则磁盘轨道上的数据的位置被标记为可能的损坏。数据被重写在相同的位置，然后重读，看是否可以完全恢复降级的数据。如果重写数据的幅度读取信号大于所选择的电平，则判断磁盘轨迹是可用的，并且正常操作继续。如果重写的数据读取信号的幅度小于所选择的电平，则假设数据磁道上的位置的永久损坏，并且数据被重写在磁记录盘上的新位置。

48. 发明授权

US6069769A Air bearing slider having rounded corners 失效
标题翻译：空气轴承滑块具有圆角
公开(公告)号：US6069769A
公开(公告)日：2000-05-30
申请号：US941790
申请日：1997-09-30
申请人： Lee K. Dorius , Donald R. Gillis , Mike Suk
发明人： Lee K. Dorius , Donald R. Gillis , Mike Suk
IPC分类号： G11B5/60 , G11B15/64
CPC分类号： G11B5/6005
摘要： A slider having an air bearing configuration designed to minimize damage to the disk surface. The air bearing slider includes an air bearing surface and at least one non-air bearing surface. For example, the non-air bearing surface may include a first etch surface and/or a second etch surface. The non-air bearing surface has at least one rounded corner. The non-air bearing surface may also have at least one rounded edge.
摘要翻译：具有空气轴承配置的滑块，其设计成使对盘表面的损坏最小化。空气轴承滑块包括空气轴承表面和至少一个非空气支承表面。例如，非空气承载表面可以包括第一蚀刻表面和/或第二蚀刻表面。非空气轴承表面具有至少一个圆角。非空气承载表面也可以具有至少一个圆形边缘。

49. 发明授权

US08331049B2 Detecting touch down and/or assessing quality in a hard disk drive 失效
标题翻译：检测触摸屏和/或评估硬盘驱动器的质量
公开(公告)号：US08331049B2
公开(公告)日：2012-12-11
申请号：US12796346
申请日：2010-06-08
申请人： SungChang Lee , Brian Thornton , Mike Suk , SeungMo Kang
发明人： SungChang Lee , Brian Thornton , Mike Suk , SeungMo Kang
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B27/36 , G11B5/6029 , G11B5/6076 , G11B19/048
摘要： This application discloses a hard disk drive and a control circuit that are configured to determine touchdown by determining the SAGC for a track, removing the repeatable component of the SAGC to create the non-repeatable component and determining an indication of clearance irregularity and/or touch down when the standard deviation of the non-repeatable component spikes. These operations may create a defect map and/or a Flying height On Demand (FOD) control table in or for the hard disk drive as products of operating the hard disk drive.
摘要翻译：本申请公开了一种硬盘驱动器和控制电路，其被配置为通过确定用于轨道的SAGC来确定触地，除去SAGC的可重复部件以创建不可重复的部件并确定间隙不规则性和/或触摸的指示当不可重复组件的标准偏差峰值时下降。这些操作可以在硬盘驱动器中或硬盘驱动器上创建缺陷映射和/或飞行高度随选（FOD）控制表，作为操作硬盘驱动器的产品。

50. 发明申请

US20100309578A1 METHOD AND APPARATUS FOR ESTIMATING FLYING HEIGHT IN A HARD DISK DRIVE 失效
标题翻译：用于估计硬盘驱动器中的飞行高度的方法和装置
公开(公告)号：US20100309578A1
公开(公告)日：2010-12-09
申请号：US12478716
申请日：2009-06-04
申请人： SungChang Lee , Yawshing Tang , Mike Suk
发明人： SungChang Lee , Yawshing Tang , Mike Suk
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/40 , G11B5/455 , G11B5/6005 , G11B5/6064
摘要： This application discloses a hard disk drive and operates it based upon using a first and third harmonic amplitude generated from reading a repeated pattern of bits written to a track on a disk surface. Both amplitudes are used to create a first data set and the third harmonic amplitude is used as a single tone to create a second data set. A conversion factor between these two is determine, which may be used to convert the first data set under other conditions into a temperature insensitive table of the electrical stimulus of a vertical micro-actuator and the flying height change of the slider. The hard disk drive may be calibrated during manufacture and/or in the field.
摘要翻译：本申请公开了一种硬盘驱动器，并且基于使用从读取写入盘表面上的轨道的重复比特模式产生的第一和第三谐波幅度来操作它。两个幅度用于创建第一数据集，并且三次谐波幅度用作单音以创建第二数据集。确定这两者之间的转换因子，其可以用于将其他条件下的第一数据集转换成垂直微致动器的电刺激的温度不敏感表和滑块的飞行高度变化。硬盘驱动器可能在制造和/或现场进行校准。

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