公开(公告)号：WO1994029852A1

公开(公告)日：1994-12-22

申请号：PCT/US1994004981

申请日：1994-04-28

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  CUCCIO, Allen ,  BRUNER, Curt ,  BEECROFT, Harold ,  HUTSELL, Larry ,  REH, Jeff ,  METZ, Robert

IPC: G11B05/012

CPC classification number: G11B33/121 ,  G11B25/043

Abstract: A hard disk drive which meets the type II PCMCIA specifications is provided. The disk drive has an outer housing (12) and a connector (14) which allow the drive to be plugged into a host computer. All of the electrical components of the drive are mounted to a single printed circuit board (90). The circuit board is approximately one-third the length of the housing and is located between the disk (18) and the connector. The reduction in the board length allows the circuit board to be placed in the same plane as the disk and therefore does not add to the thickness of the overall assembly.

Abstract translation: 提供符合II型PCMCIA规格的硬盘驱动器。 磁盘驱动器具有允许驱动器插入主计算机的外壳体（12）和连接器（14）。 驱动器的所有电气部件安装到单个印刷电路板（90）上。 电路板大约是壳体长度的三分之一，并且位于盘（18）和连接器之间。 电路板长度的减小允许电路板放置在与盘相同的平面上，因此不会增加整个组件的厚度。

公开(公告)号：WO1994011872A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010176

申请日：1993-10-25

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  CHESSMAN, H., Ross ,  DION, F., Eugene

IPC: G11B17/028

CPC classification number: G11B17/038 ,  G11B25/043

Abstract: A hub assembly for a hard disk drive that incorporates O-rings (30, 32) that can absorb external loads applied in either an axial direction or a radial direction relative to the hub (14). The O-rings (30, 32) are compressed by an elastic retainer ring (34) which is captured by a top annular flange (38) of the hub (14).

Abstract translation: 一种用于硬盘驱动器的轮毂组件，其包括可吸收相对于轮毂（14）沿轴向或径向方向施加的外部载荷的O形环（30,32）。 所述O形环（30,32）被由所述轮毂（14）的顶部环形凸缘（38）所捕获的弹性保持环（34）压缩。

公开(公告)号：WO1994009490A1

公开(公告)日：1994-04-28

申请号：PCT/US1993009753

申请日：1993-10-12

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BOECKNER, James, W., Jr. ,  CHESSMAN, Shirley

IPC: G11B05/54

CPC classification number: H02K41/0358 ,  G11B21/22

Abstract: A flux generator (80) for a rotary actuator motor with an integrated magnetic latch (74) is disclosed. A magnetically permeable return plate housing provides a magnetic flux return path for the magnetic field generated by a magnet (54). The magnetically permeable return plate housing forms a first air gap for receiving a coil coupled to the actuator for positioning read/write heads over a disk platter of the disk drive, and forms a second air gap (72) for receiving a latch tab coupled to the actuator.

Abstract translation: 公开了一种用于具有集成磁性闩锁（74）的旋转致动器电动机的磁通发生器（80）。 导磁回弹壳体为由磁体（54）产生的磁场提供磁通返回路径。 导磁返回板壳体形成第一气隙，用于接收耦合到致动器的线圈，用于将读/写头定位在盘驱动器的盘片上，并形成第二气隙（72），用于接收与 执行器。

公开(公告)号：WO1993008561A1

公开(公告)日：1993-04-29

申请号：PCT/US1992008871

申请日：1992-10-16

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WILSON, Rosser, S. ,  MAYO, Michael, J.

IPC: G11B05/09

CPC classification number: G11B20/1258 ,  G11B2020/1282

Abstract: The present invention is a hybrid sector servo for use in a zoned density sector recording scheme. Sector pulses (1002, 1005) and index pulses (1001) are provided having a constant inter-pulse interval, T (1003). This inter-pulse interval (1003) is programmable, and may vary from zone to zone on the data surface. Instead of fragmenting the records, the preferred embodiment interleaves the sector pulses (1002, 1005) with the data records, thus reducing the complexity of the controller. Two types of sector pulses are generated: wide sector pulses (1005) carrying position information, and narrow sector pulses (1005) demarcating the sector boundaries. The preferred embodiment reduces rotational latency that arises from moving the read/write heads from a track in one zone to a track in antoher zone by computing the next occurence of a sector pulse (1002, 1005) in a new zone without having to wait for an intervening index pulse (1001).

Abstract translation: 本发明是用于分区密度扇区记录方案的混合扇区伺服。 提供具有恒定脉冲间隔T（1003）的扇区脉冲（1002,1005）和索引脉冲（1001）。 该脉冲间隔（1003）是可编程的，并且可以在数据表面上随区域而变化。 代替分段记录，优选实施例用扇区脉冲（1002,1005）与数据记录进行交织，从而降低了控制器的复杂度。 产生两种类型的扇区脉冲：承载位置信息的宽扇区脉冲（1005）和划分扇区边界的窄扇区脉冲（1005）。 优选实施例减小了通过计算新区域中的扇区脉冲（1002,1005）的下一次发生而将读/写头从一个区域中的轨道移动到安非勒区域中的轨道而产生的旋转等待时间，而不必等待 中间索引脉冲（1001）。

公开(公告)号：WO1993002500A1

公开(公告)日：1993-02-04

申请号：PCT/US1992005937

申请日：1992-07-16

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WONG, King, L. ,  MORRIS, Frank

IPC: H02K41/00

CPC classification number: H02K41/0358

Abstract: An improved actuator support structure includes a centerpole member (35) having an opening or void (37) disposed at a middle region. The opening improves the rise time of the actuator without diminishing the flux density within the centerpole member. Additional openings (36) are disposed in the centerpole member (35) along opposite sides of the first opening (37). These additional openings (36) are calculated to optimize the flux density within the centerpole member (35) by slightly restricting the area of the centerpole (35) where the magnetic flux flows.

公开(公告)号：WO1993002452A1

公开(公告)日：1993-02-04

申请号：PCT/US1992005992

申请日：1992-07-17

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  MORRIS, Frank, Ivan ,  WONG, King, L. ,  TALBOT, Robert, Leo

IPC: G11B21/16

CPC classification number: G11B5/5565

Abstract: A pivoting armset assembly (24) is disclosed herein that has substantially reduced misregistration due to thermal effects. The armset assembly (24) is useful for an actuator in a magnetic disk drive (12); the preferred embodiment is an armset assembly (24) in an actuator for reading from, or writing to, one or more magnetic storage disks (12). The armset assembly (24), constructed according to the present invention, includes an armset (24) having a smooth bore (50) aligned with the axis (40) of rotation. The assembly further includes a sleeve (32) having a smooth outer perimeter with a size for an interference fit within the smooth bore (50). An anti-friction material (52) is positioned between the smooth sleeve (32) and the smooth bore (50). The assembly also includes a bearing (30) disposed within the sleeve (32), to pivot the arm about its axis (40). The coefficient of friction between the bore (50) and sleeve (32) is high enough that they rotate together as a unit throughout their operating temperature range, without creating radial clearance between the arm (24) and the sleeve (32), but low enough to permit slight axial adjustments during thermal expansion in which the bore (50) expands at a different rate than the sleeve (32). Preferably, the anti-friction material (52) is disposed on the sleeve, and includes a coating of tungsten disulfide (WS2). The coefficient of friction can be selected by a choice of the heaviness of the interference fit, the type of the anti-friction material (52), and the smoothness of the bore (50) and the sleeve (32).

公开(公告)号：WO1992011542A1

公开(公告)日：1992-07-09

申请号：PCT/US1991009723

申请日：1991-12-20

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  HUBER, William, D. ,  SWANSON, Rod, J. ,  STARK, Dennis, C. ,  BUCSKA, Nicholas

IPC: G01R33/12

CPC classification number: G01R33/1207 ,  G11B20/1816 ,  H03D1/2245

Abstract: A media flaw detection apparatus having a sensitivity which is independent of the location of the flaw relative to the written test signal. The apparatus is equally sensitive to missing or extra bit defects. According to the invention, in-phase (14) and quadrature-phase (15) signals are heterodyned (16, 17) against the analog playback input signal. The resulting signals are squared (22, 23) and summed (24) to produce a signal analogous to the effect of the flaw.

公开(公告)号：WO1988006781A1

公开(公告)日：1988-09-07

申请号：PCT/US1988000604

申请日：1988-02-26

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WRIGHT, Harold, T.

IPC: G11B05/012

CPC classification number: G11B33/1433 ,  G11B19/2009 ,  G11B25/043

Abstract: The invention consists of an in-spindle disk drive motor incorporating a novel two-piece aluminum spindle (36) and a method for fabricating the same. The spindle (36) is hollow and contains a removable steel flux sleeve (44) on which plastic permanent magnets (45) are mounted. The spindle is mounted by means of two bearings (43, 49) to a non-rotating stator shaft (41) disposed through the center of the spindle and rigidly attached to a disk drive base (30). One of the bearings (49) is located in a removable bearing sleeve (37) at the top of the spindle and the other is located beyond the steel sleeve (44) at the bottom end of the spindle. The aluminum spindle eliminates thermal distortion effects caused in prior art in spindle motors by the thermal expansion differences between aluminum disks and non-aluminum spindles.

Abstract translation: 本发明包括一个内置新颖的两件式铝心轴（36）的主轴盘驱动马达及其制造方法。 主轴（36）是中空的并且包含可移动的钢焊剂套筒（44），塑料永磁体（45）安装在该可动钢焊套上。 主轴通过两个轴承（43,49）安装到非旋转定子轴（41）上，该定子轴穿过主轴的中心并刚性地连接到磁盘驱动器底座（30）。 其中一个轴承（49）位于主轴顶部的可拆卸轴承套（37）中，另一个位于主轴底端的钢套（44）之外。 铝主轴通过铝盘和非铝锭之间的热膨胀差异消除了现有技术在主轴电机中引起的热变形效应。

公开(公告)号：WO1988002913A1

公开(公告)日：1988-04-21

申请号：PCT/US1987002646

申请日：1987-10-14

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  SEAVER, Jay ,  SEUBERLING, Frank

IPC: G11B05/596

CPC classification number: G11B5/5547

Abstract: Methods and apparatus for performing track to track seeking on a hard disk drive memory. The present invention utilizes a gradual acceleration and deceleration profile to reduce the acoustical noise generated during seek operations. A seek profile is defined based on the starting position and desired ending position of the seek (11, 12). Programmable parameters (13-15) contained in the servo information are used in generating a seek profile. These parameters may be altered for different disk drive systems without the need to alter the control circuitry for performing the seek. In the present invention, a closed control loop (16-19) is utilized for both performing seeks and for the control of track following (centering the head on a desired track). In addition to reducing the acoustical noise during seek operations, the present invention results in reduced settling times of the head at the end of a seek resulting in seek time equal to or less than those of conventional methods.

Abstract translation: 用于在硬盘驱动器存储器上执行跟踪追踪的方法和装置。 本发明利用逐渐的加速和减速曲线来减少在寻道操作期间产生的声音噪声。 基于搜索的起始位置和期望的结束位置来定义搜索简档（11,12）。 包含在伺服信息中的可编程参数（13-15）用于产生寻道曲线。 这些参数可以针对不同的磁盘驱动器系统而改变，而不需要改变用于执行搜索的控制电路。 在本发明中，闭合控制回路（16-19）用于执行寻道和用于控制轨道追踪（将磁头定位在期望轨道上）。 除了在搜索操作期间降低声音噪声之外，本发明导致在搜索结束时头部的建立时间减少，导致寻找时间等于或小于常规方法的寻道时间。