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1. 发明授权

US08089718B2 Method and apparatus for increasing storage capacity of a hard disk drive 失效
标题翻译：提高硬盘驱动器存储容量的方法和装置
公开(公告)号：US08089718B2
公开(公告)日：2012-01-03
申请号：US11329592
申请日：2006-01-10
申请人： George A. Dunn
发明人： George A. Dunn
IPC分类号： G11B21/02
CPC分类号： G11B5/59655 , G11B5/59666
摘要： A method and apparatus for improving the capacity of a hard disk drive is provided. In one embodiment, a portion of timing information is written to a first disk prior to coupling the first disk with a hard disk drive. The first disk is then coupled with the hard disk drive having a read element aligned with a write element on a head portion of a head gimbal assembly. The timing information is then provided to the read element during a writing of a set of servo track information on the disk, wherein the portion of timing information allows the read element to be aligned with the write element on the head during the writing of the set of servo track information.
摘要翻译：提供了一种用于提高硬盘驱动器容量的方法和装置。在一个实施例中，在将第一盘与硬盘驱动器耦合之前，将定时信息的一部分写入第一盘。然后将第一盘与具有与头部万向节组件的头部上的写入元件对准的读取元件的硬盘驱动器耦合。然后，在写入一组伺服磁道信息在磁盘上时，将定时信息提供给读取的元件，其中定时信息的一部分允许读取元件在写入该组件期间与头部上的写元件对准的伺服信息。

2. 发明授权

US07809459B2 Advanced-process-control system utilizing a lambda tuner 有权
标题翻译：使用lambda调谐器的高级过程控制系统
公开(公告)号：US07809459B2
公开(公告)日：2010-10-05
申请号：US12006411
申请日：2007-12-31
申请人： Toshihiro Morisawa , Andrew C. Walker , Yeak-Chong Wong
发明人： Toshihiro Morisawa , Andrew C. Walker , Yeak-Chong Wong
IPC分类号： G06F19/00 , G06F17/10 , G05B13/02
CPC分类号： G05B13/041
摘要： An advanced process control (APC) system. The APC system comprises a database for receiving process data from a measurement tool for a plurality of process runs and for storing the process data. A lambda tuner determines a tuned-lambda value corresponding to a process-capability-index value based on upper and lower process control limits and statistics derived from the process data. A process-run controller updates a recipe value based on the received process data and the tuned-lambda value.
摘要翻译：先进的过程控制（APC）系统。 APC系统包括用于从用于多个处理运行的测量工具接收处理数据并用于存储过程数据的数据库。 lambda调谐器基于上下过程控制限制和从过程数据导出的统计信息来确定对应于过程能力指数值的调整lambda值。过程运行控制器基于接收到的过程数据和调整的lambda值来更新配方值。

3. 发明授权

US07526856B2 Method for fabricating a magnetic head using a ferrofluid mask 失效
标题翻译：使用铁磁流体面罩制造磁头的方法
公开(公告)号：US07526856B2
公开(公告)日：2009-05-05
申请号：US11391069
申请日：2006-03-27
申请人： Vladimir R. Nikitin
发明人： Vladimir R. Nikitin
IPC分类号： G11B5/187 , B44C1/22
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , H01F1/445 , H01F41/34 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for fabricating sliders (magnetic heads) with a recessed surface around a magnetic feature such as the active components of the write head on the air-bearing surface (ABS) is described. An embodiment of the method applies a positive photoresist to the exposed ABS surface, a magnetic field is applied, then liquid ferrofluid is applied on top of the photoresist. The pole pieces around the write gap will interact with the applied magnetic field so that the field gradient is highest around the write gap and the mobile ferrofluid will preferentially collect in the areas of the surface having the highest magnetic field gradient. The opaque magnetic particles in the ferrofluid form an optical ferrofluid mask over the photoresist around the write gap. The unmasked surface of the slider is milled which results in the recession of material around the write gap.
摘要翻译：描述了一种用于制造具有诸如空气轴承表面（ABS）上的写入头的有源部件之类的磁性特征周围的凹陷表面的滑块（磁头）的方法。该方法的一个实施例将正性光致抗蚀剂施加到暴露的ABS表面，施加磁场，然后将液体铁磁流体施加在光致抗蚀剂的顶部。写入间隙周围的极片将与所施加的磁场相互作用，使得在写入间隙周围的场梯度最高，并且移动铁磁流体将优先收集在具有最高磁场梯度的表面的区域中。铁磁流体中的不透明磁性颗粒在写入间隙周围的光致抗蚀剂上形成光学铁磁流体掩模。滑块的未掩蔽表面被铣削，这导致写入间隙周围的材料的衰退。

4. 发明申请

US20080244359A1 Techniques For Correcting Errors Using Iterative Decoding 有权
标题翻译：使用迭代解码校正错误的技术
公开(公告)号：US20080244359A1
公开(公告)日：2008-10-02
申请号：US11694676
申请日：2007-03-30
申请人： Zongwang Li , Yuan Xing Lee , Richard Leo Galbraith , Ivana Djurdjevic , Travis Roger Oenning
发明人： Zongwang Li , Yuan Xing Lee , Richard Leo Galbraith , Ivana Djurdjevic , Travis Roger Oenning
IPC分类号： H03M13/00
CPC分类号： H03M13/112 , H03M13/1102 , H03M13/1117 , H03M13/1128 , H03M13/1515 , H03M13/2966 , H03M13/2975 , H03M13/2987 , H03M13/6331 , H03M13/658 , H04L1/005 , H04L1/0057
摘要： Techniques are provided for iteratively decoding data recorded on a data storage device. An iterative decoder decodes the data using multiple decoding iterations to correct errors. In multiple iterations of the iterative decoder, a post processing block generates soft information, and a decoder applies a minimum sum decoding algorithm to a low density parity check (LDPC) code to generate extrinsic information based on the soft information and updated soft information.
摘要翻译：提供了用于迭代地解码记录在数据存储设备上的数据的技术。迭代解码器使用多个解码迭代来解码数据以校正错误。在迭代解码器的多次迭代中，后处理块产生软信息，并且解码器将最小和解码算法应用于低密度奇偶校验（LDPC）码，以基于软信息和更新的软信息生成外在信息。

5. 发明申请

US20070192669A1 Combined encoder/syndrome generator with reduced delay 有权
标题翻译：具有减少延迟的组合式编码器/综合发生器
公开(公告)号：US20070192669A1
公开(公告)日：2007-08-16
申请号：US11341230
申请日：2006-01-26
申请人： Martin Hassner , Kirk Hwang
发明人： Martin Hassner , Kirk Hwang
IPC分类号： H03M13/00
CPC分类号： G11B20/1833 , H03M13/158
摘要： A combined encoder/syndrome generator is provided that has a reduced delay. The combined encoder/syndrome generator generates check symbols during an encoding process and error syndromes during a decoding process. The combined encoder/syndrome generator has two or more blocks. The output of each block is fed as an input into a subsequent block. Each block can perform computations in parallel to reduce the delay of the encoding system.
摘要翻译：提供了具有减少的延迟的组合编码器/校正子发生器。组合的编码器/校正子发生器在解码过程期间在编码处理期间产生校验符号和错误综合征。组合的编码器/校正子发生器具有两个或更多个块。每个块的输出作为输入被馈送到随后的块中。每个块可以并行执行计算，以减少编码系统的延迟。

6. 发明申请

US20060023352A1 Method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording 失效
标题翻译：用于提供具有用于垂直记录的后挡板设计的反向空气轴承表面头的方法和装置
公开(公告)号：US20060023352A1
公开(公告)日：2006-02-02
申请号：US10903983
申请日：2004-07-30
申请人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
发明人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording. A reverse air bearing surface head for perpendicular recording is provided with an inversed bevel shape to handle skew when recording data on a magnetic recording medium.
摘要翻译：一种用于提供具有用于垂直记录的后挡板设计的反向空气轴承表面头的方法和装置。用于垂直记录的反向空气轴承表面头设置有反转的斜面形状，以在磁记录介质上记录数据时处理偏斜。

7. 发明申请

US20050213238A1 Apparatus for providing head amplitude characterization 失效
标题翻译：提供头幅表征的装置
公开(公告)号：US20050213238A1
公开(公告)日：2005-09-29
申请号：US10811523
申请日：2004-03-29
申请人： Chad Mitchell , Vicki Pipal , Joey Poss , Raymond Richetta
发明人： Chad Mitchell , Vicki Pipal , Joey Poss , Raymond Richetta
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10009
摘要： An apparatus for providing head amplitude characterization is disclosed. A DAC is used to apply known signals to a variable gain amplifier in the front end of a read channel. The signal is processed through the read channel and at the output of an ADC, the signal is read and used to determine the input channel amplitude. Knowing the amplitude of the two input signals, the ADC code spread and the two VGA gain codes, an equation is generated for determining the amplitude of a head.
摘要翻译：公开了一种用于提供头振幅表征的装置。 DAC用于将已知信号应用于读通道前端的可变增益放大器。该信号通过读通道和ADC的输出进行处理，该信号被读取并用于确定输入通道幅度。了解两个输入信号的幅度，ADC代码扩展和两个VGA增益代码，生成一个用于确定磁头幅度的方程式。

8. 发明申请

US20050190474A1 Method and apparatus for providing write pre-compensation using a read timing path 有权
公开(公告)号：US20050190474A1
公开(公告)日：2005-09-01
申请号：US10787308
申请日：2004-02-26
申请人： Firmin Musungu , Joey Poss , Raymond Richetta
发明人： Firmin Musungu , Joey Poss , Raymond Richetta
IPC分类号： G11B5/09 , G11B20/10 , G11B20/14
CPC分类号： G11B20/10194 , G11B5/09 , G11B20/1403
摘要： A method and apparatus for providing write pre-compensation using a read timing path is disclosed. The present invention generates a first phase clock signal having a first phase and being synchronized with a read signal of a read path, generates a second phase clock signal having a second phase at a predetermined phase difference with the first clock signal and uses the first and second clock signals to shift write data to achieve write data comprising a first desired pre-compensation.

9. 发明申请

US20050088786A1 Method and apparatus for providing a spin valve transistor with differential detection 失效
标题翻译：用于提供具有差分检测的自旋阀晶体管的方法和装置
公开(公告)号：US20050088786A1
公开(公告)日：2005-04-28
申请号：US10694036
申请日：2003-10-27
申请人： Hardayal Gill
发明人： Hardayal Gill
IPC分类号： G11B5/127 , G11B5/33 , G11B5/39 , G11B23/03
CPC分类号： B82Y10/00 , G11B5/3903
摘要： A method and apparatus for providing a spin valve transistor with differential detection is disclosed. The present invention provides a structure including spin valves that are (100)-oriented on a (100) substrate to take advantages of the high MR sensitivity of spin valve transistor read heads without the need for shields. This allows the distance between the free layers in the differential sensor to be minimized thereby allowing an increase in the areal density.
摘要翻译：公开了一种用于提供具有差分检测的自旋阀晶体管的方法和装置。本发明提供了一种结构，其包括在（100）衬底上（100）取向的自旋阀，以利用自旋阀晶体管读取头的高MR灵敏度的优点，而不需要屏蔽。这允许差分传感器中的自由层之间的距离最小化，从而允许面密度的增加。

10. 发明授权

US08323515B2 Method for making a master disk for nanoimprinting patterned magnetic recording disks 有权
标题翻译：制造用于纳米压印图案化磁记录盘的母盘的方法
公开(公告)号：US08323515B2
公开(公告)日：2012-12-04
申请号：US13151981
申请日：2011-06-02
申请人： Thomas R. Albrecht
发明人： Thomas R. Albrecht
IPC分类号： B44C1/22
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/82
摘要： A method for making a master disk to be used for nanoimprinting patterned-media magnetic recording disks uses sidewall lithography. In one implementation, the master disk substrate has a first pattern of concentric rings formed on it by sidewall lithography, followed by a second pattern of generally radially-directed pairs of parallel lines, also formed by sidewall lithography, with the pairs of parallel lines intersecting the rings. An etching process is then performed, using the upper pattern as an etch mask, to remove unprotected portions of the underlying concentric rings. This leaves a pattern of pillars on the substrate, which then serve as an etch mask for an etching process that etches unprotected portions of the master disk substrate. The resulting master disk then has pillars of substrate material arranged in a pattern of concentric rings and generally radially-directed pairs of parallel lines.
摘要翻译：用于制造用于纳米压印图案化介质磁记录盘的母盘的方法使用侧壁光刻。在一个实施方案中，母盘基板具有通过侧壁光刻在其上形成的同心环的第一图案，随后是也通过侧壁光刻形成的大致径向定向的一对平行线的第二图案，并且所述平行线对相交戒指。然后使用上部图案作为蚀刻掩模进行蚀刻工艺，以去除下面的同心环的未受保护的部分。这在衬底上留下了柱状图案，其然后用作用于蚀刻母盘衬底的未受保护部分的蚀刻工艺的蚀刻掩模。所得到的母盘然后具有以同心环和大体上径向指向的平行线对图案布置的基底材料柱。

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