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公开(公告)号：US06785081B2
公开(公告)日：2004-08-31
申请号：US09975294
申请日：2001-10-11
IPC分类号： G11B2102
摘要： A fly height detector apparatus and associated method for detecting the fly height of a read/write head spatially disposed from a data storage surface during a data transfer operation. The fly height detector apparatus comprises a receiver circuit measuring the frequency of the read/write head; a perturbation deliverable to the gap between the read/write head and the data storage surface to invoke a dynamic response in the read/write head; and a processor circuit responsive to the receiver circuit to derive a fly height in relation to the dynamic response frequency. The processor circuit comprises a memory in which is stored a numerical model describing a functional interrelationship between the fly height and the read/write head frequency.
摘要翻译： 一种飞行高度检测装置和相关联的方法，用于检测在数据传送操作期间从数据存储表面空间设置的读/写头的飞行高度。 飞行高度检测装置包括测量读/写头频率的接收电路; 可读取/写入头和数据存储表面之间的间隙的扰动，以调用读/写头中的动态响应; 以及响应于所述接收机电路以相对于所述动态响应频率导出飞行高度的处理器电路。 处理器电路包括存储器，其中存储有描述飞行高度和读/写头频率之间的功能相互关系的数值模型。
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公开(公告)号：US06954326B2
公开(公告)日：2005-10-11
申请号：US10256351
申请日：2002-09-26
申请人： Gary E. Bement , Michael D. Mundt , Mark A. Chapin
发明人： Gary E. Bement , Michael D. Mundt , Mark A. Chapin
CPC分类号： G11B19/04
摘要： A method and system for improving performance in a disc drive using a genetic algorithm. Chromosomes of parameter settings are loaded into disc drive components and one or more metrics are monitored that respond to variations in the parameter settings. A fitness for each chromosome is obtained as a function of the one or more metrics. The chromosomes of settings are mated and adapted over time based on the fitness of each chromosome. Parameters within each chromosome vary by random selection based on the fitness of the chromosome.
摘要翻译： 一种使用遗传算法提高磁盘驱动器性能的方法和系统。 参数设置的染色体加载到磁盘驱动器组件中，并监视一个或多个度量，以响应参数设置中的变化。 作为一个或多个度量的函数获得每个染色体的适应度。 基于每个染色体的适应度，设置的染色体随时间匹配和适应。 每个染色体中的参数根据染色体的适应度随机选择而变化。
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公开(公告)号：US06765765B2
公开(公告)日：2004-07-20
申请号：US09970363
申请日：2001-10-03
IPC分类号： G11B556
CPC分类号： G11B5/4826
摘要： An in-situs pitch and/or roll attitude adjustment system. The in-situs adjustment system includes a flexure element having an energizable dimension differential. The flexure element is coupled to a suspension assembly and slider and is energizable to supply a flexure force to the slider to adjust pitch or roll attitudes of the slider.
摘要翻译： 内部俯仰和/或侧倾姿势调节系统。 内置调整系统包括具有可激励尺寸差的挠曲元件。 挠曲元件联接到悬架组件和滑块，并且可激励以向滑块提供挠曲力以调节滑块的俯仰或滚动姿态。
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公开(公告)号：US06760182B2
公开(公告)日：2004-07-06
申请号：US10079046
申请日：2002-02-18
IPC分类号： G11B2102
CPC分类号： G11B5/4826 , G11B5/6005
摘要： A disc drive includes a disc, a beam extending from the voice coil motor to a gimbal point to provide a load force, and a slider that flies over the disc with a pole tip protrusion that has an ambient temperature sensitivity. The disc drive also includes a strut with a yielding bend section (YBS). Deposits of shape memory alloys (SMA) having different first and second transformation temperature ranges are deposited on the yielding bend section (YBS) and effectively reduce an ambient temperature sensitivity of the pole tip protrusion.
摘要翻译： 盘驱动器包括盘，从音圈电机延伸到万向节以提供负载力的光束，以及具有环境温度敏感度的极尖突起的盘上的滑块。 磁盘驱动器还包括具有屈服弯曲部分（YBS）的支柱。 具有不同的第一和第二相变温度范围的形状记忆合金（SMA）的沉积物沉积在屈服弯曲部分（YBS）上，并有效地降低极尖突起的环境温度敏感性。
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5.发明授权Method and apparatus for minimizing slider fly heights over patterned media 有权使图案化介质上滑块飞行高度最小化的方法和装置公开(公告)号：US06563673B2
公开(公告)日：2003-05-13
申请号：US09952122
申请日：2001-09-11
IPC分类号： G11B582
CPC分类号： G11B5/60 , G11B5/59688 , G11B5/6005 , G11B5/82
摘要： A patterned magnetic storage medium has a plurality of data sectors separated by respective servo sectors with each servo sector having a pattern of pits representing servo data. Grooves in each data sector separate adjacent tracks. Non-uniform structures patterns the grooves to a model of minimum or zero fly height perturbations of a slider adjacent the medium. The non-uniform structures preferably include lands pseudo-randomly spaced along each groove to form segmented grooves of pseudo-random length, with the lands being pseudo-randomly positioned across the data sector. In other embodiments, the servo sectors have lengths along each track to define a null frequency that matches a pitch frequency of modulation of a slider due to the pits of the servo sectors.
摘要翻译： 图案化磁存储介质具有由相应的伺服扇区分开的多个数据扇区，每个伺服扇区具有表示伺服数据的凹坑图案。 每个数据扇区的槽分开相邻的轨道。 不均匀结构将凹槽图案化为与介质相邻的滑块的最小或零飞高度扰动的模型。 非均匀结构优选地包括沿着每个凹槽伪随机间隔开的凸起以形成伪随机长度的分段凹槽，其中凸台被伪随机地定位在数据扇区上。 在其他实施例中，伺服扇区沿着每个轨道具有长度，以限定由于伺服扇区的凹坑而使滑块的调制频率匹配的零点频率。
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公开(公告)号：US06710976B2
公开(公告)日：2004-03-23
申请号：US09970213
申请日：2001-10-03
申请人： Mark A. Chapin , Michael D. Mundt , Paul W. Smith
发明人： Mark A. Chapin , Michael D. Mundt , Paul W. Smith
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B5/6082 , G11B21/21
摘要： A disc head slider includes a slider body having a disc-facing surface, a recessed area positioned on the disc-facing surface, and a raised rail positioned on the disc-facing surface adjacent the recessed area. The raised rail includes a bearing surface and a recessed step surface which is recessed from the bearing surface and is raised from the recessed area. A plurality of bearing pads are formed on the recessed step surface and have upper surfaces that together define the bearing surface. A non-bearing pad is formed on the recessed step surface and has an upper surface, which is generally coplanar with the bearing surface, and a pointed leading pad edge.
摘要翻译： 盘头滑块包括具有面向盘的表面的滑块体，位于面向盘的表面上的凹陷区域和位于与凹陷区域相邻的面向盘的表面上的凸起轨道。 凸条包括从轴承表面凹入并从凹入区域升高的支承表面和凹入的台阶表面。 在凹进的台阶表面上形成多个轴瓦，并具有一起限定支承表面的上表面。 在凹入的台阶表面上形成非轴承瓦块，并且具有与轴承表面大致共面的上表面和尖的前端边缘。
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7.发明授权Suspension assembly including a shape memory flexure element to adjust flexure or preload force 失效悬架组件，包括形状记忆挠曲元件，用于调节挠曲或预加载力公开(公告)号：US06954339B2
公开(公告)日：2005-10-11
申请号：US09970125
申请日：2001-10-03
CPC分类号： G11B5/4833
摘要： A suspension assembly which can be energized to provide in-situs fly height adjustment for a head of a disc drive or energizable to adjust preload force for CSS. The suspension assembly includes a shape memory flexure element having an energizable length differential. In one aspect, the flexure element is integrated with a flexible suspension circuit which provides advantages for manufacture and assembly. In another aspect, the flexure element is coupled to a bending portion of the head suspension assembly and energized to adjust flexure of the suspension assembly relative to the bending portion.
摘要翻译： 一个悬挂组件，可以通电以提供磁盘驱动器的头部的内部飞行高度调节，或者可以调节以调整CSS的预载力。 悬架组件包括具有可激励长度差的形状记忆挠曲元件。 在一个方面，挠曲元件与柔性悬挂电路集成，其提供用于制造和组装的优点。 在另一方面，挠曲元件联接到头部悬挂组件的弯曲部分并被激励以调节悬架组件相对于弯曲部分的弯曲。
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公开(公告)号：US06560071B2
公开(公告)日：2003-05-06
申请号：US09962299
申请日：2001-09-25
申请人： Mark A. Chapin , Michael D. Mundt , Anthony P. Sannino , Deborah S. Schnur , Scott E. Ryun , Zine-Eddine Boutaghou
发明人： Mark A. Chapin , Michael D. Mundt , Anthony P. Sannino , Deborah S. Schnur , Scott E. Ryun , Zine-Eddine Boutaghou
IPC分类号： G11B1732
CPC分类号： G11B21/21 , C10M2209/103 , C10M2209/104 , C10M2209/105 , C10M2209/106 , C10M2209/107 , C10M2209/108 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106 , G11B5/6082
摘要： A disc head slider includes a slider body having a disc-opposing face with leading and trailing slider edges, a slider length measured between the leading and trailing slider edges, a bearing surface, a recessed area, an inlet and a convergent channel. The recessed area is recessed from the bearing surface. The inlet has a leading channel end, which is open to air flow from the leading slider edge, channel side walls and a trailing channel end. The convergent channel has a leading channel end, which is open to fluid flow from the inlet, channel side walls and a trailing channel end, which is closed to the fluid flow. The trailing channel end of the convergent channel is located along the slider length rearward of at least a portion of the recessed area and forward of at least a portion of the bearing surface.
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9.发明授权Funneled trench AAB increased contact stiffness and enhanced take-off performance 有权漏斗沟AAB增加了接触刚度和增强的起飞性能公开(公告)号：US06661611B1
公开(公告)日：2003-12-09
申请号：US09931143
申请日：2001-08-16
申请人： Anthony P. Sannino , Mark A. Chapin , Michael D. Mundt , Scott E. Ryun , Ram M. Rao , Deborah S. Schnur
发明人： Anthony P. Sannino , Mark A. Chapin , Michael D. Mundt , Scott E. Ryun , Ram M. Rao , Deborah S. Schnur
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B5/6082 , G11B21/21
摘要： A slider for supporting a transducing head proximate to a rotating disc. The slider has a slider body having a disc opposing face and a longitudinal axis. The disc opposing face is bounded by a leading edge, a trailing edge, and first and second side edges. An air bearing surface is defined on the disc opposing face with the air bearing surface having at least one pad located behind the leading edge. A cavity is positioned on the disc opposing face and the cavity is recessed from the air bearing surface at a cavity depth. At least a portion of the cavity precedes the pad. A funnel directs airflow within the cavity from the leading edge to the pad.
摘要翻译： 用于支撑靠近旋转盘的换能头的滑块。 滑块具有滑块体，该主体具有圆盘相对面和纵向轴线。 盘相对面由前缘，后缘以及第一和第二侧边界限。 空气轴承表面限定在盘相对面上，其中空气轴承表面具有位于前缘的后面的至少一个垫。 空腔位于盘相对面上，并且空腔在空腔深度处从空气轴承表面凹陷。 至少一部分空腔在垫之前。 漏斗将空腔内的气流从前缘引导到衬垫。
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10.发明授权Disc head slider having highly damped bearing with multiple pressure gradiant-generating pads 失效具有多个压力梯度发生垫的高阻尼轴承的盘头滑块公开(公告)号：US06510027B1
公开(公告)日：2003-01-21
申请号：US09637271
申请日：2000-08-10
申请人： Mark A. Chapin , Michael D. Mundt , James M. Murphy , Anthony P. Sannino , Zine-Eddine Boutaghou
发明人： Mark A. Chapin , Michael D. Mundt , James M. Murphy , Anthony P. Sannino , Zine-Eddine Boutaghou
IPC分类号： G11B2121
CPC分类号： G11B21/21 , G11B5/60 , G11B5/6005
摘要： A disc head slider includes a slider body having a leading edge, a trailing edge, a slider length measured from the leading edge to the trailing edge, a central-recess floor and a plurality of raised rails. Each raised rail forms a respective bearing surface. At least one of the raised rails has a recessed rail surface, which is recessed from the respective bearing surface and raised from the central recess floor. At least twenty isolated bearing pads are positioned on the recessed rail surface and together form at least part of the respective bearing surface. Each bearing pad has a pad length and a pad width, which are at least one percent of the slider length.
摘要翻译： 盘头滑动器包括具有前缘，后缘，从前缘到后缘测量的滑块长度的滑块体，中央凹槽底板和多个凸起轨道。 每个凸起的轨道形成相应的支承表面。 凸起轨道中的至少一个具有凹入的轨道表面，凹入的轨道表面从相应的支承表面凹陷并且从中心凹陷地板升起。 至少二十个隔离的支承垫定位在凹槽轨道表面上，并且一起形成相应支承表面的至少一部分。 每个轴承垫具有垫长度和垫宽度，其至少为滑块长度的百分之一。
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