公开(公告)号：US5311378A

公开(公告)日：1994-05-10

申请号：US878551

申请日：1992-05-05

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

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

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

CPC分类号： G11B5/10 ,  G11B17/32 ,  G11B5/4886 ,  G11B5/58 ,  G11B5/59677

摘要： 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.

摘要翻译： 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：US5166845A

公开(公告)日：1992-11-24

申请号：US611925

申请日：1990-11-09

申请人： Herbert E. Thompson ,  Duane G. Wallace, Jr. ,  Gilbert D. Springer

发明人： Herbert E. Thompson ,  Duane G. Wallace, Jr. ,  Gilbert D. Springer

IPC分类号： G11B5/48

CPC分类号： G11B5/484

摘要： An integrated read/write transducer and flexure support structure is provided for use with rotating magnetic media such as a hard disc drive. The integrated structure includes at least one magnetic pole structure integral with a unitary sheet of flexible magnetic material from which the flexure support is formed. A second magnetic pole is supported on the structure, together with conductive coils, to form an electromagnetic transducer. The integrated structure includes an air-bearing surface mounted for parallel motion with respect to adjacent magnetic media. A pattern of positive-pressure air-bearing rails and negative-pressure recesses provides an aerodynamically stable configuration designed to fly at a height of approximately 5 microinches above the moving magnetic media. Conductors and interconnect pads are provided on the magnetic sheet material substrate. The overall transducer and flexure support, including an external stiffener attached to the backside of the air-bearing surface, has a mass of less than about 15 milligrams.

摘要翻译： 提供集成读/写传感器和挠曲支撑结构，用于与诸如硬盘驱动器之类的旋转磁介质一起使用。 集成结构包括至少一个磁极结构，与形成挠曲支撑件的柔性磁性材料的整体片整体。 第二磁极与导电线圈一起支撑在结构上，以形成电磁换能器。 集成结构包括安装成相对于相邻磁性介质平行运动的空气轴承表面。 正压空气轴承轨道和负压凹槽的图案提供空气动力学稳定的构造，其设计成在移动的磁性介质上方大约5微英寸的高度飞行。 导电体和互连焊盘设置在磁性片材基材上。 整个换能器和挠曲支撑件，包括附接到空气轴承表面的背面的外部加强件，其质量小于约15毫克。