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1. 发明申请

WO1998019828A1 MULTI-POINT BENDING OF BARS DURING FABRICATION OF MAGNETIC RECORDING HEADS 审中-公开
标题翻译：磁性记录头制造过程中棒的多点弯曲
公开(公告)号：WO1998019828A1
公开(公告)日：1998-05-14
申请号：PCT/US1996020088
申请日：1996-12-13
申请人： SEAGATE TECHNOLOGY, INC. , HAO, Shanlin, X.
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： B24B49/00
CPC分类号： B24B37/048 , B24B37/00 , B24B49/00
摘要： A device (198) for lapping a bar (10) of the type which carries a plurality of sliders used in magnetic storage systems includes first, second, and third actuators (220, 222, 224) adapted to couple to the bar (10), and impart a first, second, and third controllable force in response to a first, second, and third control signal, respectively. An arm (204) couples to the first, second, and third actuators and applies a lapping force to the bar (10) which presses the bar (10) against a lapping surface (208) thereby causing material to be removed from the bar (10). A controller (262) provides the first, second, and third control signals to the first, second, and third actuators (220, 222, 224), respectively, to impart a plurality of forces onto the bar (10). The actuators (220, 222, 224) are controlled to obtain a desired profile of the bar (10) and to obtain a desired distribution of the lapping force across the profile of the bar (10).
摘要翻译：一种用于研磨载有用于磁存储系统中的多个滑块的类型的杆（10）的装置（198）包括适于联接到杆（10）的第一，第二和第三致动器（220,222,224）并且分别响应于第一，第二和第三控制信号赋予第一，第二和第三可控制力。臂（204）联接到第一，第二和第三致动器，并将研磨力施加到杆（10），杆（10）将杆（10）压靠在研磨表面（208）上，从而使材料从杆 10）。控制器（262）分别向第一，第二和第三致动器（220,222,224）提供第一，第二和第三控制信号，以将多个力施加到杆（10）上。控制致动器（220,222,224）以获得条（10）的所需轮廓并且获得穿过杆（10）的轮廓的研磨力的期望分布。

2. 发明申请

WO1998018596A1 IMPROVED ELG WIRING CONFIGURATION 审中-公开
标题翻译：改进ELG配线
公开(公告)号：WO1998018596A1
公开(公告)日：1998-05-07
申请号：PCT/US1997001324
申请日：1997-01-30
申请人： SEAGATE TECHNOLOGY, INC. , HAO, Shanlin, X. , STOVER, Lance, E. , KEEL, Beat, G.
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： B24B49/00
CPC分类号： B24B37/00 , B23Q15/02 , B24B37/048 , B24B41/06 , B24B49/02 , B24B49/10 , G11B5/102 , G11B5/1871 , G11B5/232 , G11B5/3106 , G11B5/3116 , G11B5/313 , G11B5/3166 , G11B5/3169 , G11B5/3903 , Y10T29/49037
摘要： An electrical lap guide (ELG) system and method are disclosed for use in lapping a bar (10) of magnetic transducer carrying sliders to a desired transducer height. A first ELG (ELG1) contained within the bar has at least two first ELG resistive elements (R11, R12). A second ELG (ELG2) contained within the bar has at least two second ELG resistive elements (R21, R23). A first of the at least two first ELG resistive elements is electrically coupled to a first of the at least two second ELG resistive elements to thereby reduce a total number of leads needed between a data acquisition unit (100) and the bar (10) during lapping. The reduction in required data acquisition unit (100) leads (L) allows more ELGs to be included on each bar (10) in order to more accurately control the lapping process
摘要翻译：公开了一种用于将携带滑块的磁性换能器的杆（10）研磨到期望的换能器高度的电牵引导引（ELG）系统和方法。包含在棒内的第一ELG（ELG1）具有至少两个第一ELG电阻元件（R11，R12）。包含在棒内的第二ELG（ELG2）具有至少两个第二ELG电阻元件（R21，R23）。所述至少两个第一ELG电阻元件中的第一个电耦合到所述至少两个第二ELG电阻元件中的第一ELG电阻元件，从而在数据采集单元（100）和所述条（10）期间减少所需导线的总数研磨。所需数据采集单元（100）引线（L）的减少允许在每个条（10）上包括更多的ELG，以便更精确地控制研磨过程

3. 发明申请

WO1998059340A1 SLIDER FOR OPTICAL DISC DATA STORAGE SYSTEM 审中-公开
标题翻译：光盘数据存储系统滑盖
公开(公告)号：WO1998059340A1
公开(公告)日：1998-12-30
申请号：PCT/US1997018068
申请日：1997-10-07
申请人： SEAGATE TECHNOLOGY, INC.
发明人： SEAGATE TECHNOLOGY, INC. , BOUTAGHOU, Zine-Eddine
IPC分类号： G11B17/00
CPC分类号： B82Y10/00 , G11B7/122 , G11B7/1372 , G11B7/1384 , G11B11/10554 , G11B11/1058
摘要： An optical disc data storage system (10) includes an optical disc (12) having a data surface. An actuator arm (24) having a distal end is selectively radially positionable adjacent the data surface. A transducing element (30) is carried on a slider (20) which is coupled to the distal end of the actuator arm (24). The slider (20) includes an air bearing surface (56) and the transducing element (30) includes an optical mesa (54) adjacent the air bearing surface (56). The optical mesa (54) is spaced apart from the data surface whereby contact between the data surface and the mesa structure (54) is prevented.
摘要翻译：光盘数据存储系统（10）包括具有数据表面的光盘（12）。具有远端的致动器臂（24）可选择性地在数据表面附近定位。转换元件（30）承载在联接到致动器臂（24）的远端的滑块（20）上。滑块（20）包括空气支承表面（56），并且换能元件（30）包括邻近空气轴承表面（56）的光学台面（54）。光学台面（54）与数据表面间隔开，从而防止数据表面和台面结构（54）之间的接触。

4. 发明申请

WO1998049677A1 OBJECT POSITIONING USING DISCRETE SLIDING MODE CONTROL WITH VARIABLE PARAMETERS 审中-公开
标题翻译：使用具有可变参数的离散滑动模式控制的对象定位
公开(公告)号：WO1998049677A1
公开(公告)日：1998-11-05
申请号：PCT/US1997017655
申请日：1997-09-30
申请人： SEAGATE TECHNOLOGY, INC.
发明人： SEAGATE TECHNOLOGY, INC. , LIU, Zhiqiang , FUNCHES, Otis, L. , HAMPSHIRE, Randall, D.
IPC分类号： G11B05/55
CPC分类号： G11B5/5582
摘要： Apparatus and method for improving vibration and mechanical shock response of a control system through the use of discrete-time sliding mode control with variable parameters are disclosed. A servo circuit (150) for positioning a head (118) of a disc drive (100) includes a reference generator (314, 414) generating position and velocity references, an observer (306, 406) generating position and velocity estimates, and error circuitry (322, 326, 422, 426) for determining position and velocity errors therefrom. Gain circuitry (330, 332, 334, 336, 338, 340, 430, 432) applies variable position and velocity gains to the position and velocity errors, respectively, the position and velocity gains varying with respect to at least the magnitudes of the position errors.
摘要翻译：公开了通过使用具有可变参数的离散时间滑动模式控制来改善控制系统的振动和机械冲击响应的装置和方法。用于定位磁盘驱动器（100）的磁头（118）的伺服电路（150）包括产生位置和速度参考的参考发生器（314,414），产生位置和速度估计的观测器（306,406）和误差用于确定位置和速度误差的电路（322,326,422,426）。增益电路（330,332,334,336,338,340,430,432）分别对位置和速度误差施加可变位置和速度增益，位置和速度增益分别相对于位置的至少大小变化错误。

5. 发明申请

WO1998042063A1 DC MOTOR ACTUATOR TO CREATE RADIAL FORCE 审中-公开
标题翻译：直流电机执行器创建径向力
公开(公告)号：WO1998042063A1
公开(公告)日：1998-09-24
申请号：PCT/US1997004197
申请日：1997-03-19
申请人： SEAGATE TECHNOLOGY, INC. , HEINE, Gunter, K. , LEUTHOLD, Hans , FLEURY, Christian
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： H02K07/00
CPC分类号： H02K7/09 , F16C32/0444 , F16C32/0497 , F16C2370/12 , F16C2380/26 , G11B19/20 , H02K16/00 , H02K29/03
摘要： A polyphase spindle DC motor (figure 1A, 1B) providing a torque (figure 1A) and an additional radial force (F, figure 1B) within the spindle motor utilizing the spindle components (magnets and stator laminations). Interaction between the magnets and currents flowing through conductors create the torque and radial force (F) required for overall stability and efficient operation of the system.
摘要翻译：使用主轴部件（磁体和定子叠片）在主轴电动机内提供扭矩（图1A）和附加径向力（F，图1B）的多相主轴直流电动机（图1A，1B）。磁体和流过导体的电流之间的相互作用产生了系统整体稳定性和有效运行所需的扭矩和径向力（F）。

6. 发明申请

WO1998016922A1 DISC DRIVE SERVO SYSTEM EMPLOYING THERMAL SIGNALS 审中-公开
标题翻译： DISC驱动伺服系统采用热信号
公开(公告)号：WO1998016922A1
公开(公告)日：1998-04-23
申请号：PCT/US1997018325
申请日：1997-10-10
申请人： SEAGATE TECHNOLOGY, INC.
发明人： SEAGATE TECHNOLOGY, INC. , MEYER, Dallas, W. , NAGARAJAN, Subrahmanyan
IPC分类号： G11B05/596
CPC分类号： G11B5/012 , G11B5/5526 , G11B5/59627 , G11B5/59633 , G11B5/59683 , G11B5/82 , G11B2005/0021
摘要： A magnetic disc drive has a magnetoresistive element (26) for reading user data from concentric tracks of a rotatable magnetic recording disc (32). The magnetoresistive element has a resistance based on a magnetic field derived from user data and based on temperature of the magnetoresistive element. Heat generated by the bias current through the head is in part dissipated through the disc, the amount of heat dissipated being representative of disc/head spacing. The surface of the recording disc has contour elements (50, 52, 54) arranged in a pattern representing servo data, the contour elements having a height such that the spacing between the magnetoresistive element and the contour elements is different from the spacing between the magnetoresistive element and a nominal surface of the recording disc. As a result, a modulated signal (66) from the head contains a component representative of user data and a component representative of servo data.
摘要翻译：磁盘驱动器具有用于从可旋转磁记录盘（32）的同心轨道读取用户数据的磁阻元件（26）。磁阻元件具有基于从用户数据导出的磁场和基于磁阻元件的温度的电阻。通过头部的偏置电流产生的热量部分地通过光盘消散，散热量代表光盘/磁头间距。记录盘的表面具有以表示伺服数据的图案布置的轮廓元素（50,52,54），轮廓元件具有使得磁阻元件和轮廓元件之间的间隔不同于磁阻之间的间隔的高度元件和记录盘的标称表面。结果，来自头部的调制信号（66）包含表示用户数据的部件和表示伺服数据的部件。

7. 发明申请

WO1998004032A1 ASYMMETRIC CHANNEL DATA DETECTION COMPENSATION 审中-公开
标题翻译：不对称通道数据检测补偿
公开(公告)号：WO1998004032A1
公开(公告)日：1998-01-29
申请号：PCT/US1997013106
申请日：1997-07-22
申请人： SEAGATE TECHNOLOGY, INC. , FREDRICKSON, Lisa
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： H03D01/00
CPC分类号： H03M13/6343 , G11B5/09 , G11B20/10009 , H03M13/3961 , H03M13/41
摘要： A data symbol sequence detector (18-30) for choosing data symbol sequences likely to be represented by corresponding sequences of samples (15-17) received by the detector (18-30) with these sample sequences formed by sampling data signals (15) obtained from magnetically stored data (10) through a data retrieval channel which asymmetrically affects the magnitude values for a selected set of samples (19-20) in the sequence, and a magnitude difference determiner is used for obtaining representations of differences between values of the samples in the sequence and the corresponding estimated expected values. These differences representations can be limited in algebraic form.
摘要翻译：一种数据符号序列检测器（18-30），用于选择可能由由检测器（18-30）接收的这些采样序列的采样数据信号（15）所接收的相应样本序列（15-17）表示的数据符号序列，从磁存储数据（10）通过数据检索通道获得，该数据检索通道不对称地影响序列中所选择的一组采样（19-20）的幅度值，并且使用幅度差确定器来获得序列中的样本和相应的估计预期值。这些差异表示可以以代数形式来限制。

8. 发明申请

WO1998002880A1 DISC DRIVE MOTOR HAVING BEARINGS LUBRICATED WITH NON-SPREADING LUBRICANT 审中-公开
标题翻译：带有非膨胀润滑剂润滑的轴承的DISC驱动电机
公开(公告)号：WO1998002880A1
公开(公告)日：1998-01-22
申请号：PCT/US1996011820
申请日：1996-07-17
申请人： SEAGATE TECHNOLOGY, INC.
发明人： SEAGATE TECHNOLOGY, INC. , RUDD, Gregory, I. , KHAN, Raquib, U.
IPC分类号： G11B19/20
CPC分类号： G11B19/2009 , F16C33/6603 , F16C33/6696 , F16C2370/12 , F16N15/00
摘要： A disc drive (10) includes a disc (30) and a motor having a rotatable portion (50) and a fixed portion (46). The fixed portion (46) and the rotatable portion (50) are separated by a bearing (52, 54), and the rotatable portion (50) supports the disc (30). A data transducer is coupled to an actuator (36) to move relative to the disc (30) to access different portions of the disc (30). The bearing (52, 54) includes a lubricant having an additive of perfluoropolyether with a reactive end group.
摘要翻译：盘驱动器（10）包括盘（30）和具有可旋转部分（50）和固定部分（46）的马达。固定部分（46）和可旋转部分（50）由轴承（52,54）分开，并且可旋转部分（50）支撑盘（30）。数据传感器耦合到致动器（36）以相对于盘（30）移动以访问盘（30）的不同部分。轴承（52,54）包括具有带有反应性端基的全氟聚醚添加剂的润滑剂。

9. 发明申请

WO1997043079A1 SHAPED-BEAM LASER TEXTURING OF MAGNETIC MEDIA 审中-公开
标题翻译：形状光束激光纹理磁性介质
公开(公告)号：WO1997043079A1
公开(公告)日：1997-11-20
申请号：PCT/US1997008328
申请日：1997-05-13
申请人： SEAGATE TECHNOLOGY, INC. , WEI, Bo , MEYER, Dallas, W. , PAN, Zhengda , XUAN, Jialuo, J. , SHIH, Chung, Y.
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： B23K26/06
CPC分类号： G11B5/82 , B23K26/06 , B23K26/064 , B23K26/0648 , B23K26/0652 , B23K26/0665 , B23K26/073 , G11B5/74
摘要： Magnetic data storage disks (38), particularly along dedicated transducing head contact regions, are laser textured according to a process in which beam shaping optical components impart an elliptical or elongated cross-section to the laser beam. Consequently, individual texturing features such as rims (88) and nodules are elliptical or elongate, with more gradual height gradients in directions parallel to their major axes. The texturing features are oriented with respect to the direction of transducing head acceleration and deceleration. Texturing features are formed in a variety of patterns, including patterns with adjacent features contacting one another. Features may be formed with substantially different slopes on opposite sides of a maximum height region (90).
摘要翻译：磁性数据存储盘（38），特别是沿着专用的传感头接触区域，根据波束成形光学部件赋予激光束的椭圆形或细长横截面的过程被激光纹理化。因此，诸如轮辋（88）和结节的单个纹理特征是椭圆形或细长的，在与其主轴平行的方向上具有更渐进的高度梯度。纹理特征相对于头部加速和减速传感的方向取向。纹理特征以各种图案形成，包括具有彼此接触的相邻特征的图案。特征可以在最大高度区域（90）的相对侧上形成有基本上不同的斜面。

10. 发明申请

WO1997042628A1 LASER TEXTURING OF MAGNETIC RECORDING MEDIUM USING MULTIPLE LENS FOCUSING 审中-公开
标题翻译：使用多个镜头聚焦的磁记录介质的激光纹理
公开(公告)号：WO1997042628A1
公开(公告)日：1997-11-13
申请号：PCT/US1996006829
申请日：1996-05-09
申请人： SEAGATE TECHNOLOGY, INC. , XUAN, Jialuo, Jack , CHEN, Ga-Lane
发明人： SEAGATE TECHNOLOGY, INC.
IPC分类号： G11B05/64
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/8404
摘要： A magnetic recording medium is textured with a pulsed laser light beam through a multiple lens focusing system. The use of a multiple lens focusing system enables the formation of a plurality of relatively uniform protrusions smaller than those obtained with a single lens focusing system, thereby avoiding abrupt local profile changes. In an embodiment, the laser light beam is split, as by offsetting the lenses, to obtain a plurality of pairs of even smaller protrusions than obtained with a laser light beam having a centralized energy profile. The pulsed, multiple lens focused laser light beam can be used to texture a substrate, underlayer or magnetic layer. The resulting laser textured magnetic recording medium exhibits improved flying stability, glide performance and reliability.
摘要翻译：磁记录介质通过多透镜聚焦系统用脉冲激光束纹理化。使用多重透镜聚焦系统能够形成比用单个透镜聚焦系统获得的那些更小的多个相对均匀的凸起，从而避免突然的局部轮廓变化。在一个实施例中，通过偏移透镜来激光束被分裂，以获得与具有集中能量分布的激光束获得的多对甚至更小的突起。脉冲多透镜聚焦激光束可用于纹理衬底，底层或磁性层。所得到的激光纹理磁记录介质具有改进的飞行稳定性，滑动性能和可靠性。

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