公开(公告)号：US6038102A

公开(公告)日：2000-03-14

申请号：US784559

申请日：1997-01-21

Applicant: Arun Balakrishnan ,  Stephen P. Williams

Inventor： Arun Balakrishnan ,  Stephen P. Williams

IPC: G11B5/48 ,  G11B21/00

CPC classification number: G11B5/4853 ,  G11B21/00 ,  G11B5/486 ,  G11B5/484

Abstract: A trace conductor array includes an electrically insulative support substrate and a plurality of electrical signal trace conductors formed along substantially parallel paths in a single layer on the substrate. The electrical signal trace conductors each have a plurality of spaced apart trace conductor segments. Passive electrical trace conductors are formed on the substrate in spaces between the spaced apart adjacent trace conductor segments, and are spaced apart and electrically isolated therefrom. The passive trace conductors generally follow a geometry of the spaced apart segments and thereby repel magnetic flux lines at higher frequencies and result in decoupling of the high frequency current-carrying conductor trace segments. A preferred application is for interconnecting a head and a preamplifier/drive circuit within a hard disk drive.

Abstract translation: 轨迹导体阵列包括电绝缘支撑衬底和沿衬底上单层中的基本平行路径形成的多个电信号迹线导体。 电信号迹线导体各自具有多个间隔开的迹线导体段。 无源电迹线导体在间隔开的相邻迹线导体段之间的空间中形成在衬底上，并且与其隔开并与之电绝缘。 无源迹线导体通常遵循间隔开的段的几何形状，从而以更高的频率排斥磁通线，并导致高频载流导体迹线段的去耦。 优选的应用是将磁头和前置放大器/驱动电路互连在硬盘驱动器内。

公开(公告)号：US5417807A

公开(公告)日：1995-05-23

申请号：US068418

申请日：1993-05-27

Applicant: Francisco F. Fossas ,  Pedro F. Ferre ,  Narciso R. Castano ,  Stephen P. Williams ,  Hideaki Urushibata

Inventor： Francisco F. Fossas ,  Pedro F. Ferre ,  Narciso R. Castano ,  Stephen P. Williams ,  Hideaki Urushibata

IPC: D21C5/02

CPC classification number: D21C5/027 ,  D21C5/025 ,  Y02W30/648

Abstract: The removal of hydrophilic flexographic inks from a pulp fiber slurry in a flotation or flotation/wash deinking system is accomplished by using a combination of (a) a fatty acid or salt thereof, (b) a rosin acid or salt thereof, and (c) a non-ionic or anionic surfactant along with water having a hardness of about 80 to 500 ppm Ca.sup.+2.

Abstract translation: 通过使用（a）脂肪酸或其盐，（b）松香酸或其盐和（c）的组合来实现在浮选或浮选/洗涤脱墨系统中从纸浆纤维浆料中除去亲水性柔性油墨 ）非离子或阴离子表面活性剂以及具有约80至500ppm Ca + 2的硬度的水。

公开(公告)号：US4935835A

公开(公告)日：1990-06-19

申请号：US269779

申请日：1988-11-10

Applicant: Jimmy D. Godwin ,  Roger O. Williams ,  Stephen P. Williams ,  Alton B. Otis, Jr.

Inventor： Jimmy D. Godwin ,  Roger O. Williams ,  Stephen P. Williams ,  Alton B. Otis, Jr.

IPC: G11B5/596 ,  G11B21/08 ,  G11B21/10

CPC classification number: G11B5/59677 ,  G11B21/083

Abstract: A magnetic medium including a physical reference feature for conveying positional information to a magnetic read/write head. The reference feature is made by indelibly marking a pattern on a surface of the medium such as by inscribing the metal oxide coating on the medium surface or by chemical etching or photolithography of the surface. Magnetic data is written on the surface of the medium and when data written on the reference feature is read, a modulated read back signal is observed which indicates the position of the reference feature. The position of the reference feature is used to direct the read/write head to track zero or to some other position on the medium surface. By using a second magnetic read/write head to write data on a second surface of the medium in response to the modulated readback signal, an electronic reference track can be written on the second surface for providing positional information to the second magnetic read/write head.

公开(公告)号：US20080150792A1

公开(公告)日：2008-06-26

申请号：US11946825

申请日：2007-11-28

Applicant: Gregory T. Stayton ,  Stephen P. Williams

Inventor： Gregory T. Stayton ,  Stephen P. Williams

IPC: G01S7/40

CPC classification number: G01S13/781 ,  G01S7/4004 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/29 ,  H04B17/327

Abstract: There are presented various approaches to monitor performance of RF systems and circuitry such as those used in aircraft transponders. Such monitoring may be designed to verify operational performance of transponders as set forth by FAA regulations, or may be used to periodically or continually monitor integrity of transponder performance. Data may be collected by such periodic or continual monitoring, and may be analyzed to identify potentially troublesome trends in transponder performance, allowing early intervention or repair, if warranted.

Abstract translation: 已经提出了各种方法来监测射频系统和电路的性能，例如在飞机应答器中使用的那些。 这样的监视可以被设计为根据FAA规定来验证应答器的操作性能，或者可以用于周期地或连续地监视应答器性能的完整性。 数据可以通过这样的定期或连续监测来收集，并且可以被分析以识别应答器性能中的潜在麻烦的趋势，如果需要的话允许早期干预或修复。

公开(公告)号：US06417997B1

公开(公告)日：2002-07-09

申请号：US09865814

申请日：2001-05-25

Applicant: Stephen P. Williams

Inventor： Stephen P. Williams

IPC: G11B548

CPC classification number: G11B5/4846 ,  G11B5/4853 ,  H05K3/363 ,  H05K3/4007 ,  H05K2201/091 ,  H05K2201/10772 ,  H05K2201/2036 ,  Y10T29/49144

Abstract: Mechanically formed standoffs in a disk drive integrated circuit interconnect reduces the cost of manufacturing and improves the reliability of the electrical interconnections thereof. Connection pads defined along the interconnect are bonded with bonding pads of a signal producing source and a signal processing source. The standoffs provide mechanical stops during the bonding process, enabling sufficient bonding material to form between bonding areas. The standoffs are mechanically formed with a punch and die assembly either directly through a bonding pad predefined along traces on the interconnect or adjacent the bonding pad. The standoffs formed through the bonding pads are covered with solder or other electrically conductive bonding material.

Abstract translation: 在磁盘驱动器集成电路互连中机械地形成的支座降低了制造成本并提高了其电互连的可靠性。 沿着互连件限定的连接焊盘与信号产生源和信号处理源的焊盘接合。 在接合过程中，间隙提供机械停止，使得能够在接合区域之间形成足够的接合材料。 该支座通过冲头和模具组件机械地形成，该冲头和模具组件可以直接通过沿着互连线上的迹线预定的接合焊盘，或者与焊盘相邻。 通过焊盘形成的支座被焊料或其它导电粘合材料覆盖。

公开(公告)号：US06313972B1

公开(公告)日：2001-11-06

申请号：US08567403

申请日：1995-12-05

Applicant: Stephen P. Williams ,  Timothy A. Riener

Inventor： Stephen P. Williams ,  Timothy A. Riener

IPC: G11B554

CPC classification number: G11B5/4833 ,  G11B21/16

Abstract: An improved flexure for supporting a read/write head adjacent to a relatively moving storage medium in a disk drive is disclosed. The flexure is a patterned flex circuit structure that is mounted to a load beam in an actuator assembly and includes integral wiring and bonding pads for electrically connecting the head to the electronics of the disk drive. The flexure also implements a high compliance gimbal with integral wiring.

Abstract translation: 公开了一种用于支持与磁盘驱动器中相对移动的存储介质相邻的读/写头的改进的挠曲。 弯曲是图案化的柔性电路结构，其被安装到致动器组件中的负载梁，并且包括用于将磁头电连接到磁盘驱动器的电子器件的整体布线和接合焊盘。 挠性件还实现了具有整体布线的高顺应性万向节。

公开(公告)号：US5535069A

公开(公告)日：1996-07-09

申请号：US459094

申请日：1995-06-02

Applicant: James Chiao ,  Jimmy D. Godwin ,  Alton B. Otis, Jr. ,  Andrew M. Rose ,  Roger O. Williams ,  Stephen P. Williams ,  Mark E. Strysko

Inventor： James Chiao ,  Jimmy D. Godwin ,  Alton B. Otis, Jr. ,  Andrew M. Rose ,  Roger O. Williams ,  Stephen P. Williams ,  Mark E. Strysko

IPC: G11B5/596 ,  G11B20/12 ,  G11B20/18 ,  G11B21/10 ,  G11B27/30 ,  G11B27/32 ,  G11B5/82

CPC classification number: G11B20/1866 ,  G11B20/1252 ,  G11B27/3027 ,  G11B27/329 ,  G11B5/59677 ,  G11B2020/1087 ,  G11B2220/2512

Abstract: A diskette comprising a jacket, a liner material disposed within said jacket, a flat circular media having a magnetic coating on both sides disposed within said liner material, a hub attached at the center of said media, a plurality of servo grooves on at least one of said sides of said media that have stitched patterns that will alternate on-and-off at twenty kilohertz in the presence of a constant, unmodulated light source. The diskette is magnetically formatted with reference and data tracks recorded in such a way that extremely accurate position determinations can be made by looking at the analog amplitude of the detected tracks and comparing them at different head positions. The innermost tracks contain redundant copies of a disk mapping table that comprises data for a media type code, a sector size code, a sector interleave code, a total track count, a reassignment area starting address, a data area starting address, a total sector count, an update count, and a reassignment table having at least room for 250 entries of three bytes each.

Abstract translation: 一种软盘，包括夹套，设置在所述护套中的衬垫材料，平坦的圆形介质，其两侧上设置有磁性涂层，设置在所述衬垫材料内;安装在所述介质中心的毂;至少一个 所述介质的所述侧面，在存在恒定的未调制的光源的情况下，其缝合图案将在二十千赫兹交替地开启和关闭。 磁盘被磁格式化，其参考和数据轨迹以这样的方式记录，即通过观察检测到的轨迹的模拟幅度并在不同的头部位置进行比较，可以进行非常精确的位置确定。 最内侧的轨道包含盘映射表的冗余副本，该盘映射表包括用于媒体类型码，扇区大小码，扇区交织码，总轨迹数，数据区起始地址，数据区起始地址，总扇区 计数，更新计数和重新分配表，其具有至少有250个条目的空间，每个条目为三个字节。

公开(公告)号：US5311378A

公开(公告)日：1994-05-10

申请号：US878551

申请日：1992-05-05

Applicant: Roger O. Williams ,  Stephen P. Williams ,  Duane G. Wallace, Jr.

Inventor： Roger O. Williams ,  Stephen P. Williams ,  Duane G. Wallace, Jr.

IPC: G11B5/10 ,  G11B5/48 ,  G11B5/58 ,  G11B5/596 ,  G11B17/32 ,  G11B13/00

CPC classification number: G11B5/10 ,  G11B17/32 ,  G11B5/4886 ,  G11B5/58 ,  G11B5/59677

Abstract: A disk system comprising an upper and lower head gimbal assembly, a coarse positioning servo system that includes a stepper motor for 135 TPI operation and a voice coil motor type servo for 1251 TPI operation that is driven by a optical servo system which locates optical track positioning information previously recorded on 3.5 inch microfloppies. The optical system focuses a spot of infrared light on the microfloppy which is channeled back to a detector. Each head gimbal includes a ceramic slider with two air bearing surfaces. A very high density magnetic core is positioned in one air bearing surface and high density magnetic core is located in the other air bearing surface. Both upper and lower sliders are such that the floppy disk media is pinched between them. The gaps of the magnetic cores are positioned within the leading edge half of their respective air bearing surfaces and take advantage of the tendency of the sliders to plow into the floppy disk media. The very high density and high density cores are offset differently from the centerline of the sliders to reduce crosstalk coupling between heads on opposite sides of the floppy disk media.

Abstract translation: 一种包括上，下头万向架组件的磁盘系统，包括用于135TPI操作的步进电机和用于1251 TPI操作的音圈电机型伺服系统的粗定位伺服系统，其由定位光轨定位的光伺服系统驱动 以前记录在3.5英寸微型软盘上的信息。 光学系统将红外光点聚焦在被引导回检测器的微软盘上。 每个头万向架包括具有两个空气轴承表面的陶瓷滑块。 一个非常高密度的磁芯位于一个空气轴承表面，高密度磁芯位于另一个空气轴承表面。 上下滑块都是这样的，软盘介质被夹在它们之间。 磁芯的间隙位于其各自的空气轴承表面的前缘一半内，并且利用滑块倾向于软盘介质的倾向。 非常高的密度和高密度的芯线与滑块的中心线不同地偏移，以减少软盘介质相对两侧的磁头之间的串扰耦合。

公开(公告)号：US4969058A

公开(公告)日：1990-11-06

申请号：US269778

申请日：1988-11-10

Applicant: Stephen P. Williams ,  Roger O. Williams

Inventor： Stephen P. Williams ,  Roger O. Williams

IPC: G11B21/10 ,  G11B5/55 ,  G11B5/596 ,  G11B5/82 ,  G11B13/04

CPC classification number: G11B5/59677 ,  G11B5/5552 ,  G11B5/5565

Abstract: A carriage assembly for use with high track density flexible magnetic disk drive systems that comprises a base carriage, which supports a permanent magnet, driven by a stepper motor used to achieve course positioning of the carriage assembly. A fine position acutator is attached to the base carriage by a pair of flexible metal strips that permit movement of the actuator relative to the base carriage for fine positioning of a pair of magnetic heads. The fine position actuator comprises a voice coil bobbin, an upper arm which supports an upper magnetic read/write head, a lower arm which supports a lower magnetic read/write head and a hinge which connects the upper and lower arms. An optical servo tracking assembly mounted on the actuator senses optical servo tracking information on a surface of a magnetic disk and generates a signal which activates the voice coil bobbin causing movement of the actuator relative to the base carriage. The materials used in the upper and lower arms and in the hinge are chosen so as to nullify the effects of thermal and hygroscopic expansion.

公开(公告)号：US07403357B1

公开(公告)日：2008-07-22

申请号：US11194874

申请日：2005-08-01

Applicant: Stephen P. Williams

Inventor： Stephen P. Williams

IPC: G11B5/48

CPC classification number: G11B5/4853

Abstract: A disk drive flexure (115′) includes both a support layer (116) and an electrical insulator layer (122). A flex cable (101′) is disposed on the electrical insulator layer (122), and includes a plurality of slider bond pads (106′). The support layer (116) includes a bond pad support (119) for each slider bond pad (106′). Each bond pad support (119) is aligned with only a portion of its corresponding slider bond pad (106′), such that it supports less than an entirety of its corresponding slider bond pad (106′).

Abstract translation: 磁盘驱动器挠曲件（115'）包括支撑层（116）和电绝缘体层（122）。 柔性电缆（101'）设置在电绝缘体层（122）上，并且包括多个滑块接合焊盘（106'）。 支撑层（116）包括用于每个滑块接合垫（106'）的接合垫支撑件（119）。 每个接合焊盘支撑件（119）仅与其对应的滑块接合焊盘（106'）的一部分对准，使得其支撑小于其对应的滑块接合焊盘（106'）的整体。