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1. 发明授权

US08014106B2 Method and apparatus for modifying a dynamic pitch of a slider to increase head to disk interface reliability for contact recording systems 有权
标题翻译：用于修改滑块的动态间距以增加接触记录系统的磁头与磁盘接口可靠性的方法和装置
公开(公告)号：US08014106B2
公开(公告)日：2011-09-06
申请号：US11077651
申请日：2005-03-11
申请人： Walton Fong , Donald R. Gillis , Remmelt Pit , Mike Suk
发明人： Walton Fong , Donald R. Gillis , Remmelt Pit , Mike Suk
IPC分类号： G11B5/48
CPC分类号： G11B5/4826 , G11B5/40 , G11B5/6005
摘要： An apparatus and method for modifying a slider to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with the suspension. In addition, an increased dynamic pitch of the slider is provided, the increased dynamic pitch increasing the height of a leading edge (LE) portion of the slider with respect to the disk and reducing the height of the TE portion of the slider with respect to the disk, wherein vertical motion of the TE portion does not collapse an air bearing provided by the LE of the slider flying above the disk.
摘要翻译：一种用于修改滑块以提高接触记录系统的磁头与磁盘接口可靠性的装置和方法。该方法提供了一个到达磁盘的悬架。还提供了在后缘（TE）部分上具有读/写头元件的滑块，该滑块与该悬架联接。此外，提供了滑块的增加的动态间距，增加的动态间距增加了滑块相对于盘的前缘（LE）部分的高度，并且相对于滑块减小了滑块的TE部分的高度所述盘，其中所述TE部分的垂直运动不会使在所述盘上方滑动的滑块的LE所提供的空气轴承折叠。

2. 发明授权

US07224547B2 Increasing head-disk interface reliability using controlled heating 有权
标题翻译：使用受控加热增加头盘接口的可靠性
公开(公告)号：US07224547B2
公开(公告)日：2007-05-29
申请号：US11246605
申请日：2005-10-06
申请人： Mike Suk
发明人： Mike Suk
IPC分类号： G11B21/02
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.
摘要翻译：一种用于在具有头部的磁盘驱动器中在读取和/或写入操作期间增加可靠性的方法。使用磁头从磁盘中读取数据。测量在读取数据期间获得的信号的幅度。信号幅度的变化程度被确定为磁头相对于磁盘的位置的函数。基于用于引起头部突出的信号幅度的变化来选择性地加热头部，从而选择性地降低头部的飞行高度，以减少在读取操作期间由头部产生的读取信号的变化和/或产生的磁场在写操作期间由头。

3. 发明授权

US07054084B2 Method, apparatus and program storage device for sensing increased resistance changes in an MR element to detect MR sensor events 失效
标题翻译：用于感测MR元件中增加的电阻变化以检测MR传感器事件的方法，装置和程序存储装置
公开(公告)号：US07054084B2
公开(公告)日：2006-05-30
申请号：US10652727
申请日：2003-08-29
申请人： Walton Fong , Remmelt Pit , Mike Suk
发明人： Walton Fong , Remmelt Pit , Mike Suk
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B21/22 , G11B5/39 , G11B19/04
摘要： A method, apparatus and program storage device for sensing increased resistance changes in an MR element to detect MR sensor events. The initial MR resistance for each slider is recorded during the drive build. The MR resistance is periodically monitored at later stages of the drive build and during normal operation. The later MR sensor resistance measurements are compared to the baseline measurement taken during the drive build to determine if an MR sensor event occurs, such as contact being made between the MR sensor and the recording medium or an MR sensor being positioned ON or OFF the ramp.
摘要翻译：一种用于感测MR元件中增加的电阻变化以检测MR传感器事件的方法，装置和程序存储装置。在驱动器构建期间记录每个滑块的初始MR电阻。在驱动器构建的较后阶段和正常操作期间，定期监视MR电阻。将后面的MR传感器电阻测量与在驱动器构建期间进行的基线测量进行比较，以确定MR传感器事件是否发生，例如在MR传感器和记录介质之间进行接触或MR传感器位于斜坡。

4. 发明授权

US07009801B2 Method and apparatus for dynamically establishing roll static attitude in hard disk drive 失效
标题翻译：在硬盘驱动器中动态建立卷静态的方法和装置
公开(公告)号：US07009801B2
公开(公告)日：2006-03-07
申请号：US10670948
申请日：2003-09-25
申请人： Remmelt Pit , Mike Suk
发明人： Remmelt Pit , Mike Suk
IPC分类号： G11B21/02
CPC分类号： G11B5/54 , G11B21/12 , G11B21/22
摘要： A hard disk drive establishes a roll static attitude (RSA) of a slider during operation to be zero during normal operation and to be non-zero during load/unload from a ramp. Specifically, a RSA bias mechanism such as a piezoelectric layer can be coupled to the slider suspension to bend the flexure of the suspension during load/unload so that the slider inner edge is higher than the outer edge. Consequently, any slider-disk contact that occurs during load/unload will be at the outer edge of the slider, where data is not expected to be on the disk.
摘要翻译：在正常操作期间，硬盘驱动器在操作期间建立滑块的滚动静止姿态（RSA）为零，并且在从斜坡加载/卸载期间将非零。具体地，诸如压电层的RSA偏置机构可以耦合到滑块悬架，以在加载/卸载期间弯曲悬架的挠曲，使得滑块内边缘高于外边缘。因此，在加载/卸载期间发生的任何滑块 - 磁盘触点将位于滑块的外边缘，其中数据不会在磁盘上。

5. 发明申请

US20060023331A1 Disk drive with selectable power source for heater in a slider 有权
公开(公告)号：US20060023331A1
公开(公告)日：2006-02-02
申请号：US10903988
申请日：2004-07-30
申请人： Karl Flechsig , Mike Suk
发明人： Karl Flechsig , Mike Suk
IPC分类号： G11B15/12 , G11B21/02
CPC分类号： G11B5/314 , G11B5/455 , G11B5/6005 , G11B5/6064 , G11B5/607
摘要： A disk drive with switchable power levels for the heaters in the sliders is disclosed. The invention includes a switch for the electrical circuit of each heater which selects between two or more voltages to apply to the power control element and the heater with at least a high and a low voltage option. The heater power control circuit dissipates a certain amount of heat as a part of the control process. By having a low voltage option the disk drive can save power and reduce the amount of heat dissipated by the heater control circuit when high power is not required. The programmable switch is controlled by the drive control system. The high power setting can be used during manufacturing testing or otherwise if higher heater power is needed. The low power setting is used for normal operation or to save power.

6. 发明授权

US06917496B2 Spacer ring for disk drive spindle with load/unload feature, latch feature, and tribological overcoat 失效
标题翻译：带负载/卸载功能的磁盘驱动器主轴的间隔环，闩锁功能和摩擦学外套
公开(公告)号：US06917496B2
公开(公告)日：2005-07-12
申请号：US09946036
申请日：2001-09-04
申请人： Donald Ray Gillis , Mike Suk
发明人： Donald Ray Gillis , Mike Suk
IPC分类号： G11B5/54 , G11B21/22
CPC分类号： G11B5/54
摘要： A hard disk drive utilizes a spacer ring at its inner diameter to load and unload the read/write heads. During relatively small shock events, the actuator is retained relative to the disk through a circumferential groove in the spacer ring. A complementary protrusion on the load/unload tab extends from the actuator into the groove to complete the retention. A tribological coating on the spacer ring and/or protrusion significantly reduces wear therebetween. However, during large shock events an inertial latch is used by the system to hold the actuator in place.
摘要翻译：硬盘驱动器在其内径处使用间隔环来加载和卸载读/写头。在相对较小的冲击事件期间，致动器通过间隔环中的周向槽相对于盘保持。装载/卸载翼片上的互补突起从致动器延伸到槽中以完成保持。间隔环和/或突起上的摩擦学涂层显着地减少了它们之间的磨损。然而，在大的冲击事件期间，系统使用惯性闩锁来将致动器保持在适当位置。

7. 发明申请

US20050052773A1 Increasing head-disk interface reliability using controlled heating 有权
标题翻译：使用受控加热增加头盘接口的可靠性
公开(公告)号：US20050052773A1
公开(公告)日：2005-03-10
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.
摘要翻译：一种用于在具有头部的磁盘驱动器中在读取和/或写入操作期间增加可靠性的方法。使用磁头从磁盘中读取数据。测量在读取数据期间获得的信号的幅度。信号幅度的变化程度被确定为磁头相对于磁盘的位置的函数。基于用于引起头部突出的信号幅度的变化来选择性地加热头部，从而选择性地降低头部的飞行高度，以减少在读取操作期间由头部产生的读取信号的变化和/或产生的磁场在写操作期间由头。

8. 发明授权

US06560074B2 Offset limiter for reducing potential of disk damage during unload sequence in load/unload disk drive 失效
公开(公告)号：US06560074B2
公开(公告)日：2003-05-06
申请号：US09972043
申请日：2001-01-16
申请人： Donald Ray Gillis , Mike Suk
发明人： Donald Ray Gillis , Mike Suk
IPC分类号： G11B548
CPC分类号： G11B5/54
摘要： A disk drive suspension has a longitudinal axis that defines inner and outer edges of the suspension. A flexure having a head gimbal assembly is aligned with the axis and spring-loaded to the suspension. A single limiter extends from the flexure through an opening in the suspension to hook to the suspension. The limiter limits the planar separation between the flexure and the suspension. The limiter is offset from the axis such that it is located much closer to the inner edge. During the unloading of the suspension from the disk, a tab on the suspension engages a ramp to begin to lift the suspension away from the disk. As the suspension is lifted, the flexure and head gimbal assembly have limited planar separation from the suspension due to the limiter. Since the limiter is offset from the axis, the surface of the head gimbal assembly is skewed relative to the disk. The offset limiter reduces the chance of the hub-side edge of the slider contacting the disk surface, since the limiter lifts the slider from hub side. For the same reason, the rim-side edge of the slider comes off the disk last, thus increasing the chance of contacting the disk at that point.

9. 发明授权

US06421205B1 Recessed slider trailing edge for reducing stiction 有权
标题翻译：凹入的滑块后缘用于减少静摩擦
公开(公告)号：US06421205B1
公开(公告)日：2002-07-16
申请号：US09256453
申请日：1999-02-23
申请人： Lee Kevin Dorius , Donald Ray Gillis , Owen Melroy , Vedantham Raman , Richard Lindsay Stover , Mike Suk
发明人： Lee Kevin Dorius , Donald Ray Gillis , Owen Melroy , Vedantham Raman , Richard Lindsay Stover , Mike Suk
IPC分类号： G11B560
CPC分类号： G11B5/6005
摘要： A slider used in a disk drive apparatus is described which has an air bearing surface and a trailing surface and a plurality of recessed steps at the trailing edge. These steps at the trailing edge greatly reduce stictional forces.
摘要翻译：描述了在磁盘驱动装置中使用的滑块，其具有空气轴承表面和后表面以及在后缘处的多个凹陷台阶。在后缘的这些步骤大大降低了立体力。

10. 发明授权

US6101062A Method and apparatus for unloading head from disk before a shock to a disk drive system 失效
标题翻译：在磁盘驱动系统发生冲击之前将磁头从磁盘卸载的方法和装置
公开(公告)号：US6101062A
公开(公告)日：2000-08-08
申请号：US986381
申请日：1997-12-08
申请人： David H. Jen , Mike Suk
发明人： David H. Jen , Mike Suk
IPC分类号： G11B5/55 , G11B21/02
CPC分类号： G11B21/025 , G11B5/5582
摘要： A method and apparatus for detecting harmful motion of a disk drive system to avoid a head crash. The motor spin current in the hard disk drive is used as a sensor to detect acceleration of the disk drive corresponding to a tipping or falling condition. In normal operation, the disk stack angular velocity (measured in revolutions per minute or RPM) is constantly monitored so that the disk drive control system can generate timing signals allowing the controller to accurately locate data addresses on the rotating disks. Disk stack RPM is accurately controlled at a constant value by a suitable feedback control loop which measures RPM and adjusts motor drive current to maintain the desired RPM. The rapidly rotating disk stack acts as a gyro system whose angular momentum resists any change in direction. In the event of a change in orientation of the disk drive such as that initiated by tipping or falling, gyroscopic forces are generated which act to increase friction of the bearings supporting the rotating disk stack resulting in a decrease in disk stack angular velocity. The change of disk stack RPM is detected by the normal feedback control loop electronics and an error signal can be generated to cause actuator park or unload action before impact of the falling disk drive occurs.
摘要翻译：一种用于检测盘驱动系统的有害运动以避免头部碰撞的方法和装置。硬盘驱动器中的电机自旋电流用作传感器，以检测对应于倾翻或下降状态的磁盘驱动器的加速度。在正常操作中，不断监视磁盘堆叠角速度（以每分钟转/分钟为单位），以便磁盘驱动器控制系统可以生成定时信号，从而允许控制器准确地定位旋转磁盘上的数据地址。通过合适的反馈控制回路将磁盘堆栈RPM精确控制在一个恒定的值，该循环测量RPM并调整电机驱动电流以维持所需的RPM。快速旋转的磁盘堆栈充当陀螺仪系统，其角动量抵抗方向上的任何改变。在诸如由倾翻或下降引起的磁盘驱动器的方向改变的情况下，产生陀螺力，其作用是增加支撑旋转盘堆叠的轴承的摩擦，导致磁盘堆叠角速度的降低。磁盘堆栈RPM的变化由正常的反馈控制回路电路检测，并且可能会产生误差信号，从而在下降的磁盘驱动器发生冲击之前产生执行器驻留或卸载动作。

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