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1. 发明授权

US06212042B1 Slider having air bearing surface which includes pads for disk storage system 有权
标题翻译：滑块具有包括用于盘存储系统的垫的空气轴承表面
公开(公告)号：US06212042B1
公开(公告)日：2001-04-03
申请号：US09029276
申请日：1998-12-09
申请人： Jing Gui , Bruno J. Marchon , Daniel P. Burbank , Joel W. Hoehn , Jeffery K. Berkowitz , Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , Dallas W. Meyer , Peter R. Segar , Andreas A. Polycarpou , Zine-Eddine Boutaghou , Dale E. Egbert , David G. Wobbe , Mary Cynthia Hipwell , Huan Tang
发明人： Jing Gui , Bruno J. Marchon , Daniel P. Burbank , Joel W. Hoehn , Jeffery K. Berkowitz , Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , Dallas W. Meyer , Peter R. Segar , Andreas A. Polycarpou , Zine-Eddine Boutaghou , Dale E. Egbert , David G. Wobbe , Mary Cynthia Hipwell , Huan Tang
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B7/122 , G11B7/22 , G11B21/21
摘要： A disc storage system includes a rotating disc and a transducer. The transducer is carried on a slider which is supported by an armature. The armature is used to move the slider radially across the disc surface whereby information may be read from or written to the disc surface of the transducer. The slider includes an air bearing surface which faces the disc surface. As the disc rotates, the air bearing surface causes the slider to “fly” over the disc surface. Pads are provided on the air bearing surface to improve operational characteristics of the system.
摘要翻译：盘存储系统包括旋转盘和换能器。传感器承载在由电枢支撑的滑块上。电枢用于将滑块径向地移动到盘表面上，从而可以从换能器的盘表面读取或写入信息。滑块包括面向盘表面的空气支承表面。当盘旋转时，空气轴承表面导致滑块“在飞盘”的表面上。垫片设置在空气轴承表面上，以改善系统的操作特性。

2. 发明授权

US5912791A Landing zone design for a magnetic disc 失效
标题翻译：磁带的着陆区设计
公开(公告)号：US5912791A
公开(公告)日：1999-06-15
申请号：US876215
申请日：1997-06-16
申请人： Ramesh Sundaram , Subrahmanyan Nagarajan
发明人： Ramesh Sundaram , Subrahmanyan Nagarajan
IPC分类号： G11B5/54 , G11B5/55 , G11B5/60 , G11B5/73 , G11B5/82 , G11B5/84 , G11B21/12 , G11B21/21 , G11B21/22 , G11B23/00 , G11B33/08
CPC分类号： G11B23/0035 , G11B21/21 , G11B21/22 , G11B5/54 , G11B5/6005 , G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/8408 , G11B21/12 , G11B33/08 , G11B5/5582 , G11B5/6011
摘要： A data storage disc having an improved landing zone for supporting a head gimbal assembly for takeoff and landing. The improved landing zone having a landing surface formed of a patterned surface structure. The patterned surface structure including contact surfaces formed generally flush with a disc surface and depressions formed into the disc surface at predefined spaced location and extending below the disc surface. The patterned surface structure reducing stiction for "takeoff" of a slider from the disc surface and reducing interference of the slider and disc surface while flying over a transition zone at the edge of the data zone and landing zone.
摘要翻译：一种数据存储盘，其具有改进的着陆区，用于支撑用于起飞和着陆的头部万向架组件。改进的着陆区具有由图案化的表面结构形成的着陆表面。图案化的表面结构包括大致与盘表面齐平的接触表面和在预定间隔的位置处形成并延伸到盘表面下方的形成在盘表面中的凹陷。图案化的表面结构减少了滑块从盘表面“起飞”的静止，并减少滑块和盘表面在数据区域和着陆区边缘的过渡区域上飞行时的干扰。

3. 发明授权

US06195234B1 Magnetic discs with raised features in the clamping area 有权
标题翻译：在夹紧区域具有凸起特征的磁盘
公开(公告)号：US06195234B1
公开(公告)日：2001-02-27
申请号：US09133720
申请日：1998-08-13
申请人： Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , James Rex Staggers, Jr. , Walter Wong
发明人： Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , James Rex Staggers, Jr. , Walter Wong
IPC分类号： G11B582
CPC分类号： G11B17/038 , G11B5/82 , G11B17/02 , G11B23/0021 , G11B23/0035
摘要： A disc drive, includes a base, a disc stack rotatably attached to the base, and an actuator assembly movably attached to the base. The actuator assembly also includes a bearing housing, head mounting arms, head suspensions attached to the head mounting arms and a head assembly attached to the head suspension. The disc drive also includes a hub having a cylindrical body. The hub includes a disc mounting flange on one end of the hub. A disc has an opening therein sufficient to allow the hub to fit within the opening of the disc. The disc has two substantially flat data surfaces. The disc also includes a disc clamping portion located near the opening in the disc. A clamp is used to attach the disc to the hub. At least one disc is placed onto the hub and onto the mounting flange of the hub. The clamp is then used to clamp the disc to the hub. The disc clamping portion includes features for accommodating differences in flatness between the disc surfaces, the mounting flange of the hub and the clamp. The features include a first raised feature which extends above the first data surface of the disc, and a second raised feature which extends above the second data surface of the disc. The features are either bumps or annular rings positioned on the disc mounting surface. The bumps or rings may be formed using a laser. The ring may also include a multiplicity of individual bumps. As the disc is clamped to the hub, the raised feature deforms to accommodate the mismatch in flatness between the disc surfaces, the mounting flange of the hub, and the clamp. The clamp may include a roughened disc clamping surface. The upper surface of the disc mounting flange may also be roughened.
摘要翻译：盘驱动器包括基座，可旋转地附接到基座的盘叠和可移动地附接到基座的致动器组件。致动器组件还包括轴承壳体，头部安装臂，附接到头部安装臂的头部悬挂件和附接到头部悬架的头部组件。盘驱动器还包括具有圆柱体的轮毂。轮毂包括在轮毂的一端的盘安装法兰。盘具有足够的开口，以允许轮毂装配在盘的开口内。盘具有两个基本平坦的数据表面。盘还包括位于盘的开口附近的盘夹紧部分。夹具用于将光盘连接到集线器。至少一个盘被放置在轮毂上并到轮毂的安装凸缘上。然后使用夹具将盘夹紧到轮毂上。盘夹紧部分包括用于适应盘表面，轮毂的安装法兰和夹具之间的平坦度的差异的特征。特征包括在盘的第一数据表面上方延伸的第一凸起特征，以及在盘的第二数据表面上方延伸的第二凸起特征。这些特征是位于盘安装表面上的凸起或环形环。凸起或环可以使用激光形成。环也可以包括多个单独的凸块。当盘被夹紧到轮毂时，凸起的特征变形以适应盘表面，轮毂的安装凸缘和夹具之间的平坦度的不匹配。夹具可以包括粗糙的盘夹紧表面。盘安装法兰的上表面也可以被粗糙化。

4. 发明授权

US07178995B2 Method and apparatus for reducing reflectance in an optical mount using a glass spacer 有权
标题翻译：使用玻璃间隔物降低光学座架中的反射率的方法和装置
公开(公告)号：US07178995B2
公开(公告)日：2007-02-20
申请号：US10429899
申请日：2003-05-05
申请人： Lew Aronson , Jignesh Shah , Paul Rosenberg , Ramesh Sundaram
发明人： Lew Aronson , Jignesh Shah , Paul Rosenberg , Ramesh Sundaram
IPC分类号： G02B6/36
CPC分类号： G02B6/4207 , G02B6/421 , G02B6/4292
摘要： Embodiments of the invention generally provide an optical component configured to minimize reflectance. The component generally includes an optical housing having a bore formed therethrough, the bore having a central component receiving portion, and a glass block positioned in the component receiving portion in abutment with a fiber receiving bore. The component further includes a fuzzy mount secured in the central component receiving portion, the fuzzy mount being secured via a plurality of extending teeth formed on an outer surface thereof, the teeth being configured to engage an inner surface of the central component receiving portion to secure the fuzzy mount therein.
摘要翻译：本发明的实施例通常提供一种配置成使反射率最小化的光学部件。该部件通常包括具有穿过其中形成的孔的光学壳体，所述孔具有中心部件接收部分，以及位于与光纤接收孔邻接的部件接收部分中的玻璃块。所述部件还包括固定在所述中央部件接收部分中的模糊安装座，所述模糊安装座通过形成在其外表面上的多个延伸齿固定，所述齿构造成与所述中央部件接收部分的内表面接合以固定其中的模糊安装。

5. 发明授权

US06301797B1 Recognizing and compensating for disk shift in computer disk drives 失效
标题翻译：识别和补偿计算机磁盘驱动器中的磁盘移位
公开(公告)号：US06301797B1
公开(公告)日：2001-10-16
申请号：US09325887
申请日：1999-06-04
申请人： Ramesh Sundaram , Wei Yao , Li-Ping Wang , David Shiao-Min Kuo
发明人： Ramesh Sundaram , Wei Yao , Li-Ping Wang , David Shiao-Min Kuo
IPC分类号： B65G4722
CPC分类号： G11B5/012 , G11B5/5582 , G11B17/038 , G11B19/04 , G11B33/08 , G11B33/10 , Y10S414/135
摘要： A method and apparatus for data disks adapted to compensate for effects of shock loads imparted to a disk drive which are of sufficient magnitude to cause disk shifts. A series of topographical features are formed on the disk surface or edge to cause signal fluctuation in a sensor during read-back mode operation. An initial signal profile is stored as a map indicative of track or disk alignment with respect to the actuator assembly. Selectively, such as after a known shock event, the topographical features are re-profiled. A comparison of the profiles provides a measure of any track distortion which must be compensated for in future read-write operations by adjustments to data track servo follower algorithms.
摘要翻译：一种用于数据盘的方法和装置，适用于补偿赋予磁盘驱动器的冲击载荷的影响，磁盘驱动器具有足够大的幅度以引起磁盘移位。在磁盘表面或边缘上形成一系列地形特征，以在回读模式操作期间引起传感器中的信号波动。初始信号轮廓被存储为指示相对于致动器组件的轨道或盘对准的映射。选择性地，例如在已知的冲击事件之后，地形特征被重新分类。配置文件的比较可以提供任何跟踪失真的量度，通过调整数据轨道伺服跟随器算法，必须在将来的读写操作中对其进行补偿。

6. 发明授权

US6003364A Glide head for testing a disc surface 失效
标题翻译：滑动头用于测试光盘表面
公开(公告)号：US6003364A
公开(公告)日：1999-12-21
申请号：US145681
申请日：1998-09-02
申请人： Wei Hsin Yao , Ramesh Sundaram
发明人： Wei Hsin Yao , Ramesh Sundaram
IPC分类号： G01B13/22 , G11B5/84 , G11B23/00 , G11B33/10
CPC分类号： G01B13/22 , G11B23/0028 , G11B5/84 , G11B5/8408 , G11B33/10
摘要： An improved glide head is useful for testing the glide quality of a disc. The glide head includes an air bearing surface, pads extending from the air bearing surface and a contact sensor, the contact sensor providing an output in response to an impact on the pad. The air-bearing surface defines a resting plane. The pad protrudes from the air-bearing surface such that the pad projects below the resting plane of the air-bearing surface.
摘要翻译：改进的滑行头可用于测试光盘的滑动质量。滑行头包括空气轴承表面，从空气轴承表面延伸的焊盘和接触传感器，接触传感器响应于对焊盘的冲击而提供输出。空气轴承表面限定了一个静止平面。垫从空气轴承表面突出，使得垫突出到空气轴承表面的静止平面下方。

7. 发明授权

US07978974B2 Insertable EMI shield clip for use in optical transceiver modules 有权
标题翻译：用于光收发模块的可插入EMI屏蔽夹
公开(公告)号：US07978974B2
公开(公告)日：2011-07-12
申请号：US11860195
申请日：2007-09-24
申请人： Chris K. Togami , Ramesh Sundaram , Hermando Esguerra
发明人： Chris K. Togami , Ramesh Sundaram , Hermando Esguerra
IPC分类号： H04K3/00
CPC分类号： H05K9/0058 , H04B10/40
摘要： The embodiments disclosed herein relate an insertable shield clip for use in controlling electromagnetic interference in an optical transceiver module. The optical transceiver module may include a shell that houses first and second optical subassemblies and an enclosure that cooperates with the shell in defining a covering for the optical transceiver module. The shield clip may comprise a body composed of conductive material. The body may include first and second vertical side members. The body may also include first and second shield members that are each configured to receive a corresponding nosepiece of one of the first and second optical subassemblies. The body may further include a bottom member that interconnects the first and second vertical side members and the first and second shield members.
摘要翻译：本文公开的实施例涉及用于控制光收发器模块中的电磁干扰的可插入屏蔽夹。光收发器模块可以包括容纳第一和第二光学子组件的外壳以及与壳体配合以限定光收发器模块的覆盖物的外壳。屏蔽夹可以包括由导电材料组成的主体。主体可以包括第一和第二垂直侧构件。主体还可以包括第一和第二屏蔽构件，每个屏蔽构件被配置为接收第一和第二光学子组件之一的对应的鼻梁。主体还可以包括使第一和第二垂直侧构件以及第一和第二屏蔽构件相互连接的底部构件。

8. 发明授权

US07050694B2 Continuously variable attenuation of an optical signal using an optical isolator 有权
标题翻译：使用光隔离器对光信号进行连续可变的衰减
公开(公告)号：US07050694B2
公开(公告)日：2006-05-23
申请号：US10426453
申请日：2003-04-29
申请人： Todd L. Gustavson , Konstantinos G. Haritos , Subra Nagarajan , Ramesh Sundaram
发明人： Todd L. Gustavson , Konstantinos G. Haritos , Subra Nagarajan , Ramesh Sundaram
IPC分类号： G02B6/00
CPC分类号： G02B6/2746 , A61K51/1072 , A61K51/1093 , G02B6/266
摘要： Method and apparatus of attenuating an optical signal without adding extra components is presented. The drive current of the optical signal source is set to meet a predetermined bandwidth requirement and exceed a predetermined amplitude requirement. An optical isolator that is used to prevent back-reflections from reaching the optical signal source is used to achieve the desired amount of attenuation. More specifically, the invention includes controlling the attenuation by tuning an angle θ between the transmission axis of a polarizer that is part of the optical isolator and the original polarization state of the optical signal. By increasing the angle θ, the amount of attenuation is increased; by decreasing the angle θ, the amount of attenuation is decreased. The invention allows continuous tuning of the angle θ.
摘要翻译：提出了在不增加额外分量的情况下衰减光信号的方法和装置。光信号源的驱动电流被设定为满足预定的带宽要求并超过预定的幅度要求。用于防止反向反射到达光信号源的光隔离器用于实现所需的衰减量。更具体地，本发明包括通过调谐作为光隔离器的一部分的偏振器的透射轴与光信号的原始极化状态之间的角度θ来控制衰减。通过增加角度θ，增加衰减量; 通过减小角度θ，减少衰减量。本发明允许角度θ的连续调谐。

9. 发明授权

US06369900B1 Glide head with features on its air bearing surface for improved fly height measurement 有权
标题翻译：滑动头，其空气轴承表面具有特征，可改善飞行高度测量
公开(公告)号：US06369900B1
公开(公告)日：2002-04-09
申请号：US09211217
申请日：1998-12-14
申请人： Ramesh Sundaram , Wei H. Yao
发明人： Ramesh Sundaram , Wei H. Yao
IPC分类号： G01B1114
CPC分类号： G01B11/14 , G11B5/6005 , G11B7/122 , G11B11/1058 , G11B33/10
摘要： An improved glide head has optical marks on the air bearing surface. The glide heads can be used for detecting defects on disc surfaces following an evaluation of the fly height as a function of disc rotation. The optical marks provide a position for focusing light used in the optical measurement of fly height. The optical marks have measurably different optical properties from the portions of the air bearing surface not covered by an optical mark. The differences in optical properties of the optical marks can be used to adjust the position of the optical system relative to the glide head to ensure that the light is focused on an optical mark.
摘要翻译：改进的滑行头在空气轴承表面上具有光学标记。在评估飞行高度作为盘旋转的函数之后，滑动头可用于检测盘表面上的缺陷。光学标记提供了用于聚焦在飞行高度的光学测量中使用的光的位置。光学标记与未被光学标记覆盖的空气轴承表面的部分具有可测量的不同的光学特性。可以使用光学标记的光学特性的差异来调整光学系统相对于滑动头的位置，以确保光聚焦在光学标记上。

10. 发明授权

US5751527A Magnetic tape head contour with land widths to optimize flying height and a sufficient number of bleed slots to uniformly maintain the flying height of the tape 失效
标题翻译：具有带宽的磁带头轮廓，以优化飞行高度和足够数量的排放槽，以均匀地保持带的飞行高度
公开(公告)号：US5751527A
公开(公告)日：1998-05-12
申请号：US291052
申请日：1994-08-15
申请人： Ramesh Sundaram , Terry J. Barber
发明人： Ramesh Sundaram , Terry J. Barber
IPC分类号： G11B5/10 , G11B5/187 , G11B5/265 , G11B15/62
CPC分类号： G11B5/102 , G11B5/1871 , G11B5/265 , G11B15/62
摘要： An improved magnetic tape head contour for reading from and writing to magnetic tape moving across the tape head has a unique configuration of bleed slots such that land width is limited to a width that optimizes flying height at increased tape speeds on the order of 4 meters/second. The number of bleed slots is increased to minimize tape undulations thereby minimizing tape head wear profile undulations. A single gutter slot is optionally provided at each end of the tape head to reduce end element wear and increase the useful life of the heads.
摘要翻译：用于从磁带头读取和写入磁带的改进的磁带头轮廓具有排出槽的独特配置，使得焊盘宽度被限制为在增加的磁带速度上优化飞行高度的宽度大约为4米/ 第二。泄放槽的数量增加以最小化磁带起伏，从而最小化带头磨损轮廓起伏。可选地在磁带头的每个端部设置单个沟槽，以减少端部元件磨损并增加磁头的使用寿命。

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