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1. 发明授权

US06377420B1 Hub cap actuator damper for disc drives 有权
标题翻译：用于磁盘驱动器的轮毂盖致动器阻尼器
公开(公告)号：US06377420B1
公开(公告)日：2002-04-23
申请号：US09665815
申请日：2000-09-20
申请人： Srinivas Tadepalli , Roy Lynn Wood
发明人： Srinivas Tadepalli , Roy Lynn Wood
IPC分类号： G11B3314
CPC分类号： G11B33/121 , G11B25/043 , G11B33/08
摘要： A disc drive having reduced mechanical vibration is disclosed. An annular viscoelastic damper is sandwiched beneath the head disc assembly cover against the bearing assembly of the actuator to dampen mechanical vibrations transmitted by the cover to the actuator assembly. The damper is an annular disc made of a composite of a layer of viscoelastic polymer and a backing stiffening layer.
摘要翻译：公开了一种具有减小的机械振动的盘驱动器。环形粘弹性阻尼器夹在头盘组件盖的下方抵靠致动器的轴承组件，以将由盖传递的机械振动抑制到致动器组件。阻尼器是由粘弹性聚合物层和背衬加强层的复合材料制成的环形盘。

2. 发明授权

US5859358A Measuring stiction and friction between the heads and discs of a hard disc drive 失效
标题翻译：测量磁盘驱动器的磁头和磁盘之间的粘性和摩擦力
公开(公告)号：US5859358A
公开(公告)日：1999-01-12
申请号：US847652
申请日：1997-04-30
申请人： Roy Lynn Wood , Steven S. Eckerd
发明人： Roy Lynn Wood , Steven S. Eckerd
IPC分类号： G11B33/10 , G11B15/46
CPC分类号： G11B33/10
摘要： Apparatus and method for measuring the maximum static friction force and the kinetic friction force between the heads of a disc drive and discs adjacent the heads. The disc drive is rotated by a computer controlled spin-up motor which provides constant angular acceleration of the disc drive. Voltages at the ends of the windings of a spindle motor of the disc drive are sampled to detect the angular acceleration at which disc rotation relative to the heads begins, from which the static friction force and the kinetic friction force are determined. The angular acceleration of the disc drive is monitored through the sampling of velocity commands used to control the angular acceleration of the disc drive, or through the use of an accelerometer mounted with respect to the disc drive.
摘要翻译：用于测量最大静摩擦力的装置和方法以及磁盘驱动器的磁头与磁头相邻的磁盘之间的动摩擦力。磁盘驱动器由计算机控制的旋转电机旋转，其提供盘驱动器的恒定角加速度。磁盘驱动器的主轴电动机的绕组端部的电压被采样以检测相对于磁头的磁盘旋转开始的角加速度，静摩擦力和动摩擦力从该加速度开始。通过对用于控制盘驱动器的角加速度的速度命令的采样或通过使用相对于盘驱动器安装的加速度计来监视盘驱动器的角加速度。

3. 发明授权

US06477000B1 Actuator arm disc snubber with unitary construction 失效
标题翻译：执行机构臂式缓冲器具有单一结构
公开(公告)号：US06477000B1
公开(公告)日：2002-11-05
申请号：US09001788
申请日：1997-12-31
申请人： Kenneth Lee Pottebaum , Roy Lynn Wood
发明人： Kenneth Lee Pottebaum , Roy Lynn Wood
IPC分类号： G11B3314
CPC分类号： G11B33/08 , G11B5/6005 , G11B25/043
摘要： An apparatus and method for minimizing damage to a disc drive assembly subjected to non-operational shock. The disc drive has rotatable discs upon which data can be written and read by read/write heads supported by and controllable by an actuator assembly having actuator arms moveable over the complete data containing surfaces of the discs. A disc snubber is supported in apertures in the actuator arms, the disc snubber having bumper arms radially extending to nest the outer perimeters of the discs when the disc drive assembly is in its non-operational mode. The disc snubber is in clearing relationship to the discs in the operational mode. The disc snubber is disposed to dampen disc deflection caused by non-operational shock, thereby avoiding deleterious actuator arm/disc contact.
摘要翻译：一种用于最小化对经受非操作冲击的盘驱动组件的损坏的装置和方法。磁盘驱动器具有可旋转的盘，数据可以通过读取/写入头来读写，该读/写头由具有可在盘的完整数据容纳表面上移动的致动器臂的致动器组件支撑和控制。盘式缓冲器支撑在致动器臂中的孔中，当盘驱动组件处于其非操作模式时，具有缓冲臂的盘缓冲器径向延伸以嵌套盘的外周。光盘缓冲器在操作模式下与光盘清除关系。光盘缓冲器被设置为抑制由非操作冲击引起的盘偏转，从而避免有害的致动器臂/盘接触。

4. 发明授权

US06643080B1 Resonance identification by commanding a spindle speed change 失效
标题翻译：通过指令主轴转速进行共振识别
公开(公告)号：US06643080B1
公开(公告)日：2003-11-04
申请号：US09626029
申请日：2000-07-27
申请人： Clyde Everett Goodner, III , Roy Lynn Wood , Lealon Ray McKenzie
发明人： Clyde Everett Goodner, III , Roy Lynn Wood , Lealon Ray McKenzie
IPC分类号： G11B2736
CPC分类号： G11B21/02 , G11B25/043 , G11B33/08
摘要： Method and apparatus for identifying a resonance by changing a spindle speed, which has the effect of changing a corresponding sampling rate and Nyquist frequency. The invention discriminates (1) between plausible frequencies of true resonance and/or (2) aliased resonance from non-aliased resonances. This is accomplished by monitoring whether and/or how a resonance shifts during this speed change. Methods of the present invention monitor resonances by deriving a resonance indicator such as an apparent frequency (below the Nyquist frequency), a gain or error magnitude (compared to a derived threshold at a calculated frequency of interest), or similar criteria tested by values conventionally illustrated on a Bode plot. The present invention further includes steps or structural features for configuring a controller to attenuate or similarly limit an unwanted frequency component of an actuator control signal. In this way, resonances in the actuator can be reduced, and servo speed and accuracy thereby enhanced.
摘要翻译：通过改变主轴转速来识别共振的方法和装置，其具有改变对应采样率和奈奎斯特频率的效果。本发明鉴别（1）真正谐振的合理频率和/或（2）来自非锯齿波共振的混叠谐振。这是通过监测在此速度变化期间谐振是否变化和/或如何发生变化来实现的。本发明的方法通过导出诸如表观频率（低于奈奎斯特频率）的谐振指示器，增益或误差幅度（与感兴趣的计算频率下的导出阈值相比较）或通过常规值测试的类似标准来监测共振在波德图上说明。本发明还包括用于配置控制器以衰减或类似地限制致动器控制信号的不期望频率分量的步骤或结构特征。以这种方式，可以降低致动器中的谐振，从而提高伺服速度和精度。

5. 发明授权

US5907453A Enhanced convective voice coil cooling to improve the operational performance of a disc drive 失效
标题翻译：增强对流音圈冷却，提高磁盘驱动器的运行性能
公开(公告)号：US5907453A
公开(公告)日：1999-05-25
申请号：US889540
申请日：1997-07-08
申请人： Roy Lynn Wood , Phillip R. Ridenour , Steven S. Eckerd , Carl Fred Adams
发明人： Roy Lynn Wood , Phillip R. Ridenour , Steven S. Eckerd , Carl Fred Adams
IPC分类号： G11B33/14
CPC分类号： G11B33/142 , G11B33/1486
摘要： Apparatus and method for enhancing the convective cooling of a voice coil motor (VCM) of a disc drive. A portion of an air flow established by the rotation of a disc of the disc drive is diverted from the disc and is directed through a channel to the VCM. In one embodiment, an air foil is provided to support first and second magnetic paths of the VCM, the air foil having a shroud surface adjacent portions of the circumference of the disc and a diverter surface angularly extending from the shroud surface, the diverter surface diverting the air to the VCM. Alternatively, a base deck of the disc drive is provided with a shroud circumferentially adjacent portions of the disc and the channel extends through the shroud to direct the air from the disc to the VCM.
摘要翻译：用于增强盘驱动器的音圈电机（VCM）的对流冷却的装置和方法。通过盘驱动器的盘的旋转建立的空气流的一部分从盘转向并且通过通道被引导到VCM。在一个实施例中，提供一个气翼来支撑VCM的第一和第二磁路，该气翼具有邻近该圆周圆周的部分的护罩表面以及从该护罩表面成角度延伸的转向器表面，该分流器表面转向空气给VCM。或者，盘驱动器的基座甲板在盘周向相邻的部分设置有护罩，并且通道延伸穿过护罩以将空气从盘引导到VCM。

6. 发明申请

US20100027400A1 MOTION LIMITING COVER FOR DATA STORAGE DEVICE 审中-公开
标题翻译：数据存储设备运动限制盖
公开(公告)号：US20100027400A1
公开(公告)日：2010-02-04
申请号：US12354911
申请日：2009-01-16
申请人： Hong Zhu , Roy Lynn Wood , James Roger Mahoney , Gene Allyn Thompson , Peng Yan
发明人： Hong Zhu , Roy Lynn Wood , James Roger Mahoney , Gene Allyn Thompson , Peng Yan
IPC分类号： G11B33/02
CPC分类号： G11B5/5582 , G11B5/54
摘要： Disclosed herein are embodiments of motion limiting cover features that improve coil/VCM coupled resonance. The features are flexible in that their position and configuration can be customized to specifically target a certain type of undesirable motion, such as undesirable twisting (i.e., torsion) and/or bending.
摘要翻译：这里公开了改进线圈/ VCM耦合谐振的运动限制盖特征的实施例。这些特征是灵活的，因为它们的位置和构造可以被定制以专门针对某种类型的不期望的运动，例如不期望的扭转（即扭转）和/或弯曲。

7. 发明授权

US07274530B2 Logical mapping for improved head switching between corresponding tracks in a data handling device 有权
标题翻译：逻辑映射，用于改进数据处理设备中相应轨道之间的头切换
公开(公告)号：US07274530B2
公开(公告)日：2007-09-25
申请号：US10681964
申请日：2003-10-09
申请人： Nathaniel Boyd Wilson , Roy Lynn Wood
发明人： Nathaniel Boyd Wilson , Roy Lynn Wood
IPC分类号： G11B5/596 , G11B5/55 , G11B21/02
CPC分类号： G11B5/5547
摘要： In a data handling system having a radially-dependent track incongruity between data surfaces, at least some tracks are logically mapped so that tracks on different data surfaces correspond with one another. The correspondence is defined by the mapping so as to shorten an average headswitch seek. For example, a logical track mapping of first and second non-coaxial track sets can be defined so as to optimize a headswitch seek within each of many intermediate logical cylinders identified in the mapping.
摘要翻译：在数据表面之间具有径向相关的轨道不协调的数据处理系统中，至少一些轨道被逻辑映射，使得不同数据表面上的轨迹彼此对应。对应关系由映射定义，以缩短平均头部切换寻道。例如，可以定义第一和第二非同轴磁道组的逻辑磁道映射，以便优化在映射中标识的许多中间逻辑磁道的每一个内的磁头开关搜索。

8. 发明授权

US5999371A Aerodynamic latch with a vane-propelled shaft for a disc drive 失效
标题翻译：具有用于盘驱动器的叶片推进轴的气动闩锁
公开(公告)号：US5999371A
公开(公告)日：1999-12-07
申请号：US16766
申请日：1998-01-30
申请人： Roy Lynn Wood , Ryan Todd Ratliff , Nigel Frank Misso
发明人： Roy Lynn Wood , Ryan Todd Ratliff , Nigel Frank Misso
IPC分类号： G11B5/54
CPC分类号： G11B5/54
摘要： An actuator latch for latching an actuator of a disc drive having a rotating disc that induces airflow when the disc drive is operational, the actuator latch having a shaft supported by a baseplate, the shaft supporting a plurality of vanes to rotate the shaft in response to airflow generated by disc rotation. A locking member is operably engaged with the shaft and moveable thereby to a latched position and to an unlatched position, the actuator being secured by the locking member in the latched position and the actuator being released to move freely in the unlatched position. The locking member is caused to be positioned in the unlatched position when airflow rotates the vanes and shaft, and a biasing member reverse rotates the shaft when the airflow ceases, thus returning the locking member to the latched position when the disc drive becomes non-operational.
摘要翻译：一种致动器闩锁，用于锁定具有旋转盘的盘驱动器的致动器，所述旋转盘在盘驱动器可操作时引起气流，致动器闩锁具有由基板支撑的轴，所述轴支撑多个叶片以响应于由盘旋转产生的气流。锁定构件与轴可操作地接合并且由此可移动到锁定位置和解锁位置，致动器由锁定构件固定在锁定位置，并且致动器被释放以在解锁位置自由移动。当气流旋转叶片和轴时，锁定构件被定位在解锁位置，并且当空气流停止时偏压构件反向旋转轴，从而当盘驱动器变得不可操作时将锁定构件返回到锁定位置。

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