公开(公告)号：WO1998000841A1

公开(公告)日：1998-01-08

申请号：PCT/US1997011408

申请日：1997-06-26

Applicant: CENSTOR CORPORATION

Inventor： CENSTOR CORPORATION ,  HEMPSTEAD, Robert ,  BERDING, Keith, R. ,  CAIN, William, C. ,  HAMILTON, Harold, J. ,  IMAI, Darren, T. ,  LATEV, Dimitre, A. ,  LAUER, Mark, A. ,  MCALEAVEY, Michael, E. ,  PAYNE, Alexander, P. ,  ROBERTS, David, D.

IPC: G11B05/596

CPC classification number: G11B5/6005 ,  G11B5/3183 ,  G11B5/3967 ,  G11B5/40

Abstract: A disk drive slider (20) having a planar transducer (46) in virtual contact with a spinning rigid disk (50) during information storage and retrieval has a substrate and a strata formed on a disk-facing side of the substrate including a transducer (46), air-bearing side pads (25, 28) and a trailing central pad (30). The transducer has a pair of pole tips (44) exposed in a trailing portion of the trailing central pad (30). During operation the slider (20) tilts slightly so as to place the pole tips (44) in closer proximity to the disk surface (48) than the trailing end (35) of the slider (20). The disk-contacting pads (25, 28), with the exception of the minute poletip region, are composed of amorphous, diamond-like carbon. The transducer (46) contains a magnetic circuit that is mostly planar but has sloped regions in order to form a highly efficient, magnetically permeable loop.

Abstract translation: 在信息存储和检索期间具有与旋转刚性盘（50）虚拟接触的平面换能器（46）的盘驱动器滑块（20）具有衬底和形成在衬底的面向盘的侧上的层，包括换能器 46），空气轴承侧垫（25,28）和后中央垫（30）。 换能器具有暴露在后中央垫（30）的尾部中的一对极尖（44）。 在操作期间，滑块（20）略微倾斜，以使磁极末端（44）比滑块（20）的后端（35）更靠近磁盘表面（48）。 除了微小的poletip区域之外的盘接触垫（25,28）由无定形的类金刚石碳组成。 换能器（46）包含大体平面但具有倾斜区域的磁路，以便形成高效的导磁环路。

公开(公告)号：WO1997015047A1

公开(公告)日：1997-04-24

申请号：PCT/US1996016116

申请日：1996-10-08

Applicant: SYQUEST TECHNOLOGY, INC.

Inventor： SYQUEST TECHNOLOGY, INC. ,  LI, Aihua, Edward

IPC: G11B05/596

CPC classification number: G11B5/59605

Abstract: The system invokes a learning subroutine (600) under which a set of error location vectors are established, one for each possible location of the defective servo sample. With each error location vector, if the performance improves when it is applied then the estimation is taken to be correct, and the location of the defective sample is saved. If the performance is worse upon application of the error location vector, then the estimation is taken to be incorrect, and a different error location vector is used. During further read and write operations with the disk, the system may ignore the position error signal at the bad servo sample locations, or may adjust for bad servo samples by using a compensating position error signal vector.

Abstract translation: 该系统调用一个学习子程序（600），在该学习子程序（600）下建立一组错误位置向量，一个用于缺陷伺服样本的每个可能的位置。 对于每个错误位置向量，如果在应用时性能提高，则估计被认为是正确的，并且保存有缺陷样本的位置。 如果在应用错误位置向量时性能更差，则估计被认为是不正确的，并且使用不同的错误位置向量。 在使用磁盘的进一步的读写操作期间，系统可以忽略不良伺服采样位置处的位置误差信号，或者可以通过使用补偿位置误差信号向量来调整坏的伺服采样。

公开(公告)号：WO1996042081A1

公开(公告)日：1996-12-27

申请号：PCT/JP1995001158

申请日：1995-06-08

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  SUZUKI, Hiroaki ,  YAMAMOTO, Yoshio ,  ENDO, Tatsuya

Inventor： INTERNATIONAL BUSINESS MACHINES CORPORATION

IPC: G11B05/596

CPC classification number: G11B5/59644 ,  G11B5/5526 ,  G11B5/59627 ,  G11B5/59683

Abstract: A disk apparatus comprising an MR (magneto-resistive) element as a reproduction element, and a disk including a servo-region and a data region. This apparatus is intended to prevent a reproduction error resulting from protuberances occurring on the disk, or a reproduction error of a so-called "thermal asperity", and particularly a read error of a start bit of a grey code by the thermal asperity occurring immediately before the grey code in the servo-region, and detects an erase region. In the construction of the present invention, a channel circuit includes a hysteresis comparator, which forms a servo-pattern so that the polarity of a reproduction signal of a start bit in the beginning of the grey code becomes opposite to the polarity of the signal generated by the MR element by the thermal asperity and alternately detects or reads signals of opposite polarities. As a result, error signals resulting from the thermal asperity are not read to prevent reproduction errors.

Abstract translation: 一种包括作为再现元件的MR（磁阻）元件的盘装置，以及包括伺服区域和数据区域的盘。 该装置旨在防止由于在盘上发生的突起而产生的再现错误或所谓的“热凹凸”的再现错误，特别是由立即发生的热凹凸的灰色代码的起始位的读取误差 在伺服区域中的灰度代码之前，并检测擦除区域。 在本发明的结构中，通道电路包括一个形成伺服模式的磁滞比较器，使得灰色代码开头的起始位的再现信号的极性与产生的信号的极性相反 由MR元件通过热凹凸，并交替地检测或读取相反极性的信号。 结果，不会读取由热粗糙度引起的误差信号，以防止再现错误。

公开(公告)号：WO1996028814A1

公开(公告)日：1996-09-19

申请号：PCT/US1995003126

申请日：1995-03-13

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： INTERNATIONAL BUSINESS MACHINES CORPORATION ,  CHAINER, Timothy, Joseph ,  SOHN, Wayne, Jay ,  YARMCHUK, Edward, John

IPC: G11B05/596

CPC classification number: G11B5/5534 ,  G11B5/59616 ,  G11B5/59633 ,  G11B5/59644 ,  G11B20/16 ,  G11B21/083 ,  G11B21/10 ,  G11B21/106 ,  G11B27/30 ,  G11B27/3018

Abstract: A technique for writing a servo-pattern on a storage medium (12a) located in a recording device (10) having an internal recording head (14a). A timing pattern is generated on the storage medium (12a) with the internal recording head (14a) and a radial positioning value is determined in order to radially position the internal recording head (14a). The servo-pattern is written using the internal recording head (14a) at locations determined by the timing pattern and the radial positioning value.

Abstract translation: 一种用于在位于具有内部记录头（14a）的记录装置（10）中的存储介质（12a）上写入伺服图案的技术。 利用内部记录头（14a）在存储介质（12a）上产生定时模式，并且确定径向定位值以便径向定位内部记录头（14a）。 使用内部记录头（14a）在由定时图案和径向定位值确定的位置处写入伺服图案。

公开(公告)号：WO1996007178A1

公开(公告)日：1996-03-07

申请号：PCT/US1995009976

申请日：1995-07-21

Applicant: QUANTUM CORPORATION

Inventor： QUANTUM CORPORATION ,  TON-THAT, Luan

IPC: G11B05/596

CPC classification number: G11B5/3967 ,  G11B5/4886 ,  G11B5/596 ,  G11B5/59683

Abstract: In a disk drive using a write-wide inductive write element and a read-narrow magneto-resistive read element within a head transducer assembly for writing and reading magnetic patterns on a rotating magnetic storage disk in a plurality of concentric tracks, a track pattern formed in each concentric track segment (500) includes embedded servo wedges (502) wherein each wedge includes a servo position portion which is offset from a centerline of both the servo sector and a following user data sector (508) by an amount related to offset between the inductive write and magneto-resistive elements of the head transducer assembly. Furthermore, the servo sector contains four servo bursts. The servo bursts are arranged such that each sequential burst is offset from a previous burst by a fractional offset increment. The fractional offset increment is typically one-third of a track pitch.

Abstract translation: 在磁头驱动器中，在头部换能器组件内使用写入宽度的感应写入元件和读出窄的磁阻读取元件，用于在多个同心轨道中的旋转磁存储盘上写入和读取磁性图案，形成轨迹图案 在每个同心轨道段（500）中包括嵌入式伺服楔（502），其中每个楔包括伺服位置部分，该伺服位置部分从伺服扇区和后续用户数据扇区（508）的中心线偏移与 磁头换能器组件的感应写入和磁阻元件。 此外，伺服扇区包含四个伺服脉冲串。 伺服突发被布置成使得每个顺序脉冲串与先前脉冲串偏移小数偏移增量。 分数偏移增量通常是轨道间距的三分之一。

公开(公告)号：WO1996002914A1

公开(公告)日：1996-02-01

申请号：PCT/US1995008759

申请日：1995-07-12

Applicant: SUNWARD TECHNOLOGIES, INC.

Inventor： SUNWARD TECHNOLOGIES, INC. ,  JACQUES, Alan, M.

IPC: G11B05/596

CPC classification number: G11B5/6005

Abstract: A method and apparatus for transferring information to and from a rigid magnetic disk medium (600) through a recording mechanism (123) mounted within a magnetic contact slider (100). The slider (100) is fashioned such that the trailing edge maintains contact with the magnetic recording medium (600) while the leading edge of the slider is disposed slightly above the medium (600) on an air bearing. An active contact surface (ACS) (104) utilizes a contact blend such that the width of the ABS (105) near a leading edge is greater than the width of the ABS (105) near a trailing edge. The ACS (104) contour allows air to bleed off air from the rear of the slider (100) and causes the trailing edge of the slider (100) to remain essentially in contact with the rigid recording medium surface (600). The ACS (104) contour also provides a "transverse-free zone" for minimizing asperity damage and other harmfull effects of transverse air flow. The load point (F) is located near the leading edge of the contact slider (100). Thus, damage to the medium (600) which occurs during each stick/slip phase of liftoff is minimized.

Abstract translation: 一种用于通过安装在磁性接触滑块（100）内的记录机构（123）将信息传送到刚性磁盘介质（600）和从刚性磁盘介质（600）传送信息的方法和装置。 滑块（100）的形状使得后缘保持与磁记录介质（600）的接触，同时滑块的前缘稍微设置在空气轴承上的介质（600）上方。 主动接触表面（ACS）（104）利用接触共混物使得靠近前缘的ABS（105）的宽度大于靠近后缘的ABS（105）的宽度。 ACS（104）轮廓允许空气从滑块（100）的后部排出空气，并且使得滑块（100）的后缘基本上与刚性记录介质表面（600）接触。 ACS（104）轮廓还提供了一个“无横向区域”，用于最大限度地减少粗糙度损伤和横向气流的其他有害影响。 负载点（F）位于接触滑块（100）的前缘附近。 因此，在剥离的每个棒/滑动阶段期间对介质（600）的损坏最小化。

公开(公告)号：WO1995034887A1

公开(公告)日：1995-12-21

申请号：PCT/US1995007444

申请日：1995-06-08

Applicant: EXABYTE CORPORATION

Inventor： EXABYTE CORPORATION ,  AYRES, Mark, R.

IPC: G11B05/596

CPC classification number: G11B5/584

Abstract: In a multi-track magnetic tape recorder/player of the type used for data storage and retrieval, with a drive mechanism (101), a drive controller (102), an interface controller (105), and at least one read head and one write head (103), both being displaceable laterally relative to the direction of tape travel, and a memory to store values representative of those lateral displacements with respect to a reference position, a method for exact positioning of the read head onto previously written data tracks. In the preferred method, the write head is used to record (or erase) a longitudinal stripe along the tape, and the read head is used to find one or more edges of the stripe relative to a reference position. The diplacements used to write the stripes and the diplacements associated with the edges are compared to generate an offset correction factor used for subsequent head positioning.

Abstract translation: 在用于数据存储和检索的类型的多轨磁带录音机/播放器中，具有驱动机构（101），驱动控制器（102），接口控制器（105）和至少一个读取头和一个读取头 写头（103），两者都可相对于磁带行进方向横向位移;以及存储器，用于存储表示相对于参考位置的这些侧向位移的值，用于将读取头精确地定位在先前写入的数据轨道上的方法 。 在优选的方法中，写入头用于沿着带记录（或擦除）纵向条带，并且读取头用于相对于参考位置找到条带的一个或多个边缘。 用于写入条纹和与边缘相关联的位置的位置被比较以产生用于后续头部定位的偏移校正因子。

公开(公告)号：WO1992007355A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007533

申请日：1991-10-11

Applicant: SERVO TRACK WRITER CORPORATION

Inventor： SERVO TRACK WRITER CORPORATION ,  LEWIS, Martyn, A.

IPC: G11B05/596

CPC classification number: G11B5/59655 ,  G11B20/1252 ,  G11B27/3027 ,  G11B2005/0013 ,  G11B2220/20

Abstract: A head records a track (e.g. a servo track) in a memory member outside of a clean room without using reference indices. In each of a plurality of cyclical movements (e.g. revolutions), signals (e.g. servo signals) are recorded in the track in an individual number of frames. Thereafter, the distance of the unrecorded portion of the track is determined. In the next cyclical movement, the head records signals in an individual number of frames contiguous to the frames previously recorded, in a track distance dependent upon such individual number relative to the number of frames still unrecorded and upon the distance determined for the unrecorded track portion. In a last cyclical movement, the head records a single frame in a particular spatial relationship with the first and last frames. In a specific embodiment, 2 frames may be recorded in the K cyclical movement. Additional signals may thereafter be recorded by the head in tracks in a single cyclical movement. In another embodiment, each individual number of frames continue to be recorded in the first track in each cyclical movement until the frames occupy a distance, within particular limits, dependent upon the unrecorded length of the track and upon the individual number of frames relative to the number of frames still unrecorded. In a further embodiment, sectors and data sectors following the sectors are recorded with signals in progressive cyclical movements in a manner similar to the recording of the sectors in such revolutions in the first embodiment.

Abstract translation: 头部在洁净室外面的记忆体中记录轨迹（例如伺服轨迹），而不使用参考指标。 在多个循环运动（例如转数）中的每一个中，信号（例如伺服信号）以单个帧数记录在轨道中。 此后，确定轨道的未记录部分的距离。 在下一个周期性运动中，磁头记录与先前记录的帧相邻的单独数量的帧中的信号，该距离取决于相对于仍未被记录的帧的数目的这样的个数，以及根据未记录的轨道部分确定的距离 。 在最后的循环运动中，头记录与第一帧和最后一帧具有特定空间关系的单个帧。 在具体实施例中，可以在K周期运动中记录2

公开(公告)号：WO1989001685A1

公开(公告)日：1989-02-23

申请号：PCT/EP1988000142

申请日：1988-02-26

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  HOENIG, Eckhardt ,  DIEPERS, Heinrich ,  SCHEWE, Herbert ,  STEPHANI, Dietrich

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G11B05/596

CPC classification number: G11B5/3945 ,  G11B5/3903 ,  G11B5/4886 ,  G11B5/59683

Abstract: A magnetic storage device comprises a magnetizable storage disk, a write/read magnetic head arranged on a floating element, and a tracker system. This system comprises a servo head rigidly connected to the magnetic head and maintained on at least one guide track by electronic elements, connected downstream. The storage device is designed to ensure continuous guiding of the magnetic head. For this purpose, guide tracks (9, 10) are inscribed separately on the storage disk (2) along data tracks (40) each of which contains two parallel half-tracks (9a, 9b; 10a, 10b) with antiparallel magnetization directions (13a, 13b). The servo head (20) is arranged on the flat posterior side of the floating element and contains a magnetoresistive sensor (26) which is coupled magnetically to two magnet arms (22, 23) connected to at least one guide track (9, 10).

Abstract translation: 磁存储装置包括可磁化存储盘，布置在浮动元件上的写/读磁头和跟踪器系统。 该系统包括刚性连接到磁头的伺服磁头，并通过电子元件在下游连接至少一个导轨。 存储设备被设计成确保磁头的连续引导。 为此目的，引导轨道（9,10）沿数据轨道（40）分别刻录在存储盘（2）上，每个轨道包含具有反平行磁化方向的两个平行半轨道（9a，9b; 10a，10b） 13a，13b）。 伺服头（20）布置在浮动元件的平坦后侧上并且包含磁阻传感器（26），该磁阻传感器26磁耦合地耦合到连接到至少一个导轨（9,10）的两个磁臂（22,23） 。

公开(公告)号：WO1987003130A1

公开(公告)日：1987-05-21

申请号：PCT/US1986001984

申请日：1986-09-23

Applicant: XEBEC DEVELOPMENT PARTNERS, LTD.

Inventor： XEBEC DEVELOPMENT PARTNERS, LTD. ,  MATTSON, Gary, L.

IPC: G11B05/596

CPC classification number: G11B5/59611

Abstract: Servo position control of the read/write transducer for track following in a magnetic disk drive utilizes a particular sector servo pattern (S1, S2...) on the disk (13) and signal processing to control a positioning motor. The servo pattern is a three stair-step geometry of bursts (P1, P2, P3) arranged such that any group of three adjacent bursts spans two tracks (G1) while the head width (W) exceeds at least two-thirds of the centerline-to-centerline distance between adjacent tracks. Signal processing yields a ratio whose denominator is the sum of the amplitudes of the two largest amplitude bursts and whose numerator is the difference in amplitude between the two largest amplitude bursts ((P1-P2)/(P1+P2)).

Abstract translation: 用于磁盘驱动器中跟踪的读/写传感器的伺服位置控制利用盘（13）上的特定扇区伺服模式（S1，S2 ...）和信号处理来控制定位电动机。 伺服模式是布置为使得三个相邻突发中的任何组跨越两个轨道（G1）而头部宽度（W）超过中心线的至少三分之二的脉冲串（P1，P2，P3）的三阶梯几何形状 相邻轨道之间的中心线距离。 信号处理产生一个比值，它的分母是两个最大幅度脉冲串的振幅之和，其分子是两个最大幅度脉冲串（（P1-P2）/（P1 + P2））之间的振幅差。