公开(公告)号：WO1994008335A1

公开(公告)日：1994-04-14

申请号：PCT/US1993009461

申请日：1993-10-05

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  GITIS, Naum, V.

IPC: G11B05/60

CPC classification number: G11B5/6005 ,  F16N15/00 ,  G11B5/10 ,  G11B5/58

Abstract: A slider body (10) supporting magnetic transducer elements (14) for use in a magnetic recording system with a disk (20) includes at least one primary load-bearing surface (12) which is covered with a film having anti-frictional, self-lubricating properties. The film is composed of an immobile (e.g. solid) lubricant material. Processes for forming the solid lubricant layer on the load-bearing surface (12) of the slider body (10) include heat bonding or vapor phase deposition.

Abstract translation: 支撑用于具有盘（20）的磁记录系统的磁换能器元件（14）的滑块主体（10）包括至少一个主承载表面（12），该表面覆盖有具有抗摩擦自 润滑性能。 该膜由固定（例如固体）润滑剂材料组成。 在滑块体（10）的承载表面（12）上形成固体润滑剂层的工艺包括热粘合或气相沉积。

公开(公告)号：WO1993008563A1

公开(公告)日：1993-04-29

申请号：PCT/US1992008649

申请日：1992-10-12

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BASEHORE, David, William ,  MORRIS, Frank, Ivan ,  WONG, King, Lok ,  HACK, Paul, Joseph ,  BLEININGER, Leonard, Sylvester

IPC: G11B05/55

CPC classification number: G11B5/5521

Abstract: A sleeveless rotatable beryllium/aluminum alloy actuator arm for a disk drive for a computer. A rotatable actuator for a magnetic disk drive for a computer is also described. The rotatable actuator includes a sleeveless beryllium/aluminum alloy arm (24), a suspension (26) attached to a first end of the arm, a transducer (28) attached to the suspension, and a voice coil (55) attached to a second end of the arm.

公开(公告)号：WO1993000617A1

公开(公告)日：1993-01-07

申请号：PCT/US1992005453

申请日：1992-06-26

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BAUCK, Randall, C. ,  CHASE, Scott, E. ,  HARGARTEN, James, W.

IPC: G05B13/02

CPC classification number: G05B21/02

Abstract: An automatic digital control system includes a proportional, integral, derivative (PID) compensator (28) in which the digital differentiator portion (41), with its associated zero-order hold, is implemented according to an algorithm that reduces phase loss as a function of frequency. The digital differentiator is based only on a present error sample so that the output of the digital differentiator (with its ZOH) is made to resemble an amplitude-balanced step function (i.e., a doublet) during a given sample period T. The step transition occurs at one-half of the period (i.e., at T/2). Another embodiment further reduces phase loss by confining the output waveform to the differentiator to some fraction of the total sampling period. During the remaining portion of the sampling period the digital differentiator (again, with its associated ZOH) is forced to some desired reference level.

公开(公告)号：WO1990015407A1

公开(公告)日：1990-12-13

申请号：PCT/US1990003167

申请日：1990-06-05

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WILSON, Rosser, S. ,  SEUBERLING, Frank

IPC: G11B05/09

CPC classification number: G11B27/30 ,  G11B20/1258 ,  G11B27/105 ,  G11B2020/1282 ,  G11B2020/1284

Abstract: In the present invention, a single sector counter and accompanying multiple buffer registers (46-48) are used to provide the sector count for a plurality of recording zones. Initially, the sector counter is validated by synchronizing it with an index mark. In one embodiment, an angular position sensing counter (135) counts a clock having a frequency and phase to match the occurrence of segments in a reference zone. A look up table or computation provides an offset value representing the difference between each reference zone segment boundary, and the occurrence of the next consecutive sector in each of the recording zones. Additional logic (25) generates periodic sector pulses once the zone transition has been accomplished, and provides means to prevent generation of shortened sector intervals. This permits rapid validation of the sector signal so that it is no longer necessary to wait for the index in a hard-sectored drive before establishing the sector position when changing zones. This improves the latency of the disk drive and overall system performance.

公开(公告)号：WO1990003644A1

公开(公告)日：1990-04-05

申请号：PCT/US1989004124

申请日：1989-09-20

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WILSON, Rosser, S.

IPC: G11B21/10

CPC classification number: G11B5/553 ,  G11B5/59633 ,  G11B21/081 ,  G11B27/3027

Abstract: A fault tolerant servo index scheme (21) is described. The servo pattern (22, 23, 24) of the preferred embodiment is a twelve bit pattern chosen to limit the side lobes (5) of an autocorrelation plot of the pattern with a template (37) of the pattern. In this manner a greater number of errors can be tolerated while still permitting index identification. Initially, the entire servo pattern (22, 23, 24) on a servo track (26) (27) is detected in sequence at the bit rate. Each twelve bit sequence is compared (38) to a template (37) of the servo pattern (22, 23, 24), and the number of bits whose position and value (''1'' or ''0'') match the template (37) are determined. Whenever a threshold level (40), (less than the total number of bits in the pattern), of ''hits'' takes place it is assumed that the index has been detected. By minimizing the magnitude of the side lobes (5) of the correlation plot, the threshold can be set somewhere between complete correlation and the side lobe (5) number.

公开(公告)号：WO1997035361A1

公开(公告)日：1997-09-25

申请号：PCT/US1997004291

申请日：1997-03-18

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  RUGG, William

IPC: H01R09/09

CPC classification number: G11B33/122 ,  H01R12/58 ,  H01R12/592 ,  H01R12/65 ,  Y10T29/49146 ,  Y10T29/49149 ,  Y10T29/49153 ,  Y10T29/49165

Abstract: An in-line connector (10) adapted for use in a disk drive apparatus and a method for attaching the connector to a flexible circuit (60). The connector (10) advantageously includes pins (18) having shoulder portions (26) which are adapted to receive and support the flexible circuit (60). The method includes the steps of squeegee soldering the flexible circuit to electrically adhere the flexible circuit (60) to the in-line connector apparatus.

Abstract translation: 适用于磁盘驱动装置的直列连接器（10）和将连接器连接到柔性电路（60）的方法。 连接器（10）有利地包括具有肩部（26）的销（18），其适于接收和支撑柔性电路（60）。 该方法包括以下步骤：对柔性电路进行刮板焊接以将柔性电路（60）电连接到直列式连接器装置。

公开(公告)号：WO1997015930A1

公开(公告)日：1997-05-01

申请号：PCT/US1995013774

申请日：1995-10-25

Applicant: MAXTOR CORPORATION ,  MACPHERSON, Bryon, R.

Inventor： MAXTOR CORPORATION

IPC: G11C29/00

CPC classification number: G06F11/2221 ,  G06F11/263 ,  G06F11/273 ,  G11B5/455 ,  G11B20/1816 ,  G11B33/10

Abstract: An apparatus for testing electro-mechanical storage devices, such as disk drives, is provided. A testing device (14) in a digital computer (10) selects test parameters from an array of test parameters stored in the digital computer (10). A random number generator is used in the selection of the test parameters. When errors occur, the array of test parameters is dynamically adapted during testing to change the probability of selecting certain test parameters in response to the error.

Abstract translation: 提供了一种用于测试诸如磁盘驱动器之类的机电存储装置的装置。 数字计算机（10）中的测试设备（14）从存储在数字计算机（10）中的测试参数阵列中选择测试参数。 随机数发生器用于选择测试参数。 当发生错误时，在测试期间动态调整测试参数阵列以改变响应于该错误选择某些测试参数的概率。

公开(公告)号：WO1997011792A1

公开(公告)日：1997-04-03

申请号：PCT/US1995013008

申请日：1995-09-27

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  ZYTKA, Donald, J. ,  MADDEN, Peter, G. ,  EGLINTON, Robert, Bruce

IPC: B08B15/02

CPC classification number: B01D46/0039 ,  B01D46/0023 ,  B08B15/023 ,  F24F3/1607 ,  Y10S55/18

Abstract: A minienvironment (100) provides a cleanroom-type environment by maintaining an ultra-filtered clean-air material handling area (120) to minimize or eleminate the exposure of materials to harmful microcontaminants. The minienvironment includes an air flow generator assembly (136) for directing air external to the minienvironment through a filter assembly into the material handling area. A diffuser (140) redirects this filtered air flow over the material handling area in more than one direction to minimize or eliminate the exposure of any surfaces of materials in the handling area to harmful microcontaminants. The resulting continual outward flow of ultra-filtered air over this handling area prevents harmful microncontaminants in the air external to the miniemvironment from directly entering the handling area and flushes out any harmful microcontaminant generated within the handling area. The minienvironment may also be easily linked and configured to form an assembly line for product manufacture and assembly where materials may be passed from one handling area to another.

Abstract translation: 小型环境（100）通过保持超滤清洁空气材料处理区域（120）来提供洁净室型环境，以最大限度地减少或消除材料暴露于有害微量微粒。 微型环境包括气流发生器组件（136），用于通过过滤器组件将外部空气引导到材料处理区域中。 扩散器（140）将该过滤的气流重定向在多于一个方向上的材料处理区域上，以最小化或消除处理区域中材料的任何表面暴露于有害的微量微粒。 所产生的超滤过的空气在该处理区域上的持续向外流动防止微环境外部的空气中的有害微粒污染物直接进入处理区域并冲洗处理区域内产生的任何有害的微生物剂。 微型环境也可以容易地连接和配置成形成用于产品制造和组装的装配线，其中材料可以从一个操作区域传递到另一个操作区域。

公开(公告)号：WO1996037882A1

公开(公告)日：1996-11-28

申请号：PCT/US1996007710

申请日：1996-05-23

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  MATHEWS, Harlan ,  MCNEIL, Michael ,  BAILEY, Roger, G.

IPC: G11B05/035

CPC classification number: G11B20/10027 ,  G11B5/012 ,  G11B5/02 ,  G11B5/027 ,  G11B5/035 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10203 ,  G11B20/10314 ,  G11B2005/001 ,  G11B2005/0016

Abstract: The present invention relates to circuitry for processing an analog read signal, such as a signal produced by a magnetoresistive head (18), in a magnetic data storage system. The circuitry processes an analog read signal before the signal reaches an analog to digital converter (54). In one embodiment, the invention comprises circuitry (44) for equalizing the amplitudes of the positive and negative pulses in the analog read signal. In another embodiment, the invention comprises circuitry (42) for reducing the baseline shift of the analog read signal. The invention may be used in magnetic data storage systems using any conventional data detection method.

Abstract translation: 本发明涉及用于在磁数据存储系统中处理诸如由磁阻头（18）产生的信号的模拟读信号的电路。 在信号到达模数转换器（54）之前，电路处理模拟读取信号。 在一个实施例中，本发明包括用于均衡模拟读取信号中的正和负脉冲的振幅的电路（44）。 在另一个实施例中，本发明包括用于减小模拟读取信号的基线偏移的电路（42）。 本发明可以用于使用任何常规数据检测方法的磁数据存储系统。

公开(公告)号：WO1996002052A1

公开(公告)日：1996-01-25

申请号：PCT/US1995008549

申请日：1995-07-07

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  McNEAL, Michael ,  MATHEWS, Harlan

IPC: G11B05/127

CPC classification number: G11B5/024 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/23 ,  G11B2005/0029

Abstract: A magnetic head (10) vertically records information on a disk (12). The head (10) has a single pole (16) having a pair of erase band segments (24) which extend from a center pole section (26). When the head is writing information, the erase band segments (24) create erase bands (34) at the outer edges of the track (30) by not fully magnetizing the disk and/or increasing the azimuth angle of the magnetized outer edges. The azimuth angle can be increased by constructing the erase band segments (24) to extend at an angle from the center pole section (26). The reduction in field strength in the outer track edges can be accomplished by making the erase band segments (24) thinner to cause a saturation of the outer magnetic field. The weaker, angled outer track portions (34) do not generate a significant magnetic field in a head located on an adjacent track.

Abstract translation: 磁头（10）在盘（12）上垂直记录信息。 磁头（10）具有单极（16），其具有从中心极部分（26）延伸的一对擦除带段（24）。 当磁头正在写信息时，擦除带段（24）通过不完全磁化磁盘和/或增加磁化的外边缘的方位角，在轨道（30）的外边缘处产生擦除带（34）。 可以通过构造擦除带段（24）从中心极部分（26）以一定角度延伸来增加方位角。 可以通过使擦除带段（24）更薄以使外部磁场饱和来实现外轨道边缘中的场强的减小。 较弱的成角度的外轨道部分（34）在位于相邻轨道上的头部中不产生显着的磁场。