公开(公告)号：WO1998016919A1

公开(公告)日：1998-04-23

申请号：PCT/US1997019010

申请日：1997-10-10

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WHALEY, Jeffrey, L.

IPC: G11B05/09

CPC classification number: G11B20/1833 ,  G11B20/00652 ,  G11B2020/183

Abstract: The present invention relates in general to digital data storage systems and, more particularly, to a method for determining whether the correct data bas been read from a storage medium in a digital data storage system. A data storage system (10) is disclosed that is capable of performing a double check on data read from a storage media (12) to determine whether the data is the data desired by a requesting host computer (30). If the data is not the desired data, the system discards the data before it reaches the host (30). The data storage system (10) uses a randomizer unit (18) having a variable initialization value. The initialization value is based upon the address of the data storage location being accessed by the host (30). If the initialization value used to read a piece of data is different than the value used to write the data, uncorrectable data errors result and the data is discarded.

Abstract translation: 本发明一般涉及数字数据存储系统，更具体地，涉及一种用于确定是否从数字数据存储系统中的存储介质读取正确数据的方法。 公开了一种数据存储系统（10），其能够对从存储介质（12）读取的数据执行双重检查，以确定数据是否是请求主计算机（30）所期望的数据。 如果数据不是所需的数据，则系统在数据到达主机之前丢弃数据（30）。 数据存储系统（10）使用具有可变初始化值的随机化器单元（18）。 初始化值基于由主机（30）访问的数据存储位置的地址。 如果用于读取一条数据的初始化值与用于写入数据的值不同，则会导致不可纠正的数据错误，并丢弃数据。

公开(公告)号：WO1996039697A1

公开(公告)日：1996-12-12

申请号：PCT/US1996008898

申请日：1996-06-05

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  MC NEIL, Michael

IPC: G11B27/63

CPC classification number: G11B5/012 ,  G11B5/455 ,  G11B19/00 ,  G11B19/04 ,  G11B20/18 ,  G11B20/1816 ,  G11B27/36 ,  G11B33/10 ,  G11B2005/0018 ,  G11B2220/20

Abstract: A data error correction procedure is disclosed for use in a disk drive that includes a magneto-resistive head. The error correction procedure increases the DC bias current applied to the read stripe of the magneto-resistive head. The increased value is predetermined for a disk drive having a particular magneto-resistive head. If conventional error correction procedures are not successful, the increased DC bias current is applied to the read stripe to reduce the bit error rate that has occurred during a read operation conducted by the disk drive.

Abstract translation: 公开了一种用于包括磁阻头的磁盘驱动器中的数据纠错程序。 误差校正过程增加了施加到磁阻头的读取条的DC偏置电流。 对具有特定磁阻头的磁盘驱动器预先确定增加的值。 如果传统的纠错程序不成功，则增加的直流偏置电流被施加到读取的条带，以减少由磁盘驱动器执行的读取操作期间发生的误码率。

公开(公告)号：WO1995034066A1

公开(公告)日：1995-12-14

申请号：PCT/US1995007257

申请日：1995-06-06

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BRUNER, Curt ,  REH, Jeff ,  HUTSELL, Larry ,  ALBERT, Glenn

IPC: G11B05/596

CPC classification number: G11B27/36 ,  G11B5/5534 ,  G11B5/5547 ,  G11B19/00 ,  G11B19/02 ,  G11B19/12 ,  G11B2220/20

Abstract: A hard disk drive which has a plurality of calibration parameters stored on the disk of the drive. Calibration values for null current, jam, head width, and bandwidth are stored on the disk surface (114) and accessed during spin-up. The values are precalculated in the factory while testing the disk (100, 102, 104, 106, 108) and then computing a calibration value (112).

Abstract translation: 具有存储在驱动器的盘上的多个校准参数的硬盘驱动器。 零电流，卡纸，磁头宽度和带宽的校准值存储在磁盘表面（114）上，并在启动期间访问。 在测试磁盘（100,102,104,106,108），然后计算校准值（112）时，工厂中的值被预先计算。

公开(公告)号：WO1995015559A1

公开(公告)日：1995-06-08

申请号：PCT/US1994013863

申请日：1994-12-02

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  BODMER, James, H. ,  DIEL, Mark, A. ,  TITCOMB, Forrest, D.

IPC: G11B17/00

CPC classification number: G11B19/20 ,  G11B19/2009 ,  H02K21/24

Abstract: An in-spindle axial-field motor assembly for a disk storage system includes a stationary baseplate (18) and a cover plate (16) secured to the base to form a housing. Disposed about the cover are cylindrical coils (26) which form a motor stator. The motor assembly includes a rotor having inner and outer hubs disposed within the housing. The inner hub (20) is rotatably mounted and supported by a member of a bearing assembly (32). The outer hub (30) supports an annular, rigid disk which provides a recording medium for storage of information. An axially-magnetized magnet is disposed between the inner and outer hub with the rotor being positioned between the cover and baseplate such that the net axial force acting on the rotor is minimized during motor operation. Ferromagnetic poles are positioned in the center of each coil to enhance the motor's torque generation capacity while implementing an axially force-balanced design.

Abstract translation: 用于盘存储系统的主轴轴向电机组件包括固定基座（18）和固定到基座以形成壳体的盖板（16）。 围绕盖布置的是形成电动机定子的圆柱形线圈（26）。 马达组件包括具有设置在壳体内的内毂和外毂的转子。 内轮毂（20）由轴承组件（32）的构件可旋转地安装和支撑。 外轮毂（30）支撑环形刚性盘，其提供用于存储信息的记录介质。 轴向磁化的磁体设置在内毂和外轮毂之间，转子定位在盖板和基板之间，使得作用在转子上的净轴向力在马达运行期间最小化。 铁磁极位于每个线圈的中心，以在实现轴向力平衡设计的同时提高电动机的扭矩产生能力。

公开(公告)号：WO1995015552A1

公开(公告)日：1995-06-08

申请号：PCT/US1994013826

申请日：1994-12-01

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  McNEIL, Michael ,  DAVIS, Andrew, W. ,  KOUDELE, Larry

IPC: G11B05/09

CPC classification number: G11B20/10481 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/182 ,  G11B27/36

Abstract: Adaptive channel optimization in a disk drive is achieved by selecting a track of the recording medium and then writing a first data pattern to opposite sides of the selected track. The first data pattern (29a, 29b) is written a certain percentage of track (25a, 25b) in relation to the centerline (24) of the selected track. A second data pattern (30) is then written directly on the selected data track and the off track margin is determined as a function of how far the recording head can be positioned away from the center (24) of the selected track during reading of the second data pattern (30) while meeting a specified error rate. The off track margin test is repeated iteratively using a combination of channel variable settings in order to find a set of variable settings which provides an optimal performance criterion for the drive.

Abstract translation: 磁盘驱动器中的自适应信道优化通过选择记录介质的轨道然后将第一数据模式写入所选轨道的相对侧来实现。 第一数据图形（29a，29b）相对于所选择的轨道的中心线（24）写入一定百分比的轨道（25a，25b）。 然后将第二数据图形（30）直接写入所选择的数据轨道，并且取消跟踪余量作为在读取期间记录头可远离所选轨道的中心（24）的距离的函数 第二数据模式（30），同时满足指定的错误率。 使用通道变量设置的组合迭代地重复偏离轨道余量测试，以便找到为驱动器提供最佳性能标准的可变设置集合。

公开(公告)号：WO1995005657A1

公开(公告)日：1995-02-23

申请号：PCT/US1994008834

申请日：1994-08-03

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  CULLEY, Martin, L. ,  DE FOREST, Marvin

IPC: G11B05/012

CPC classification number: G11B27/3027 ,  G11B27/19

Abstract: The present invention includes a method, apparatus and disk format for implementation of the same to provide fault tolerant detection of ID fields for data sectors in order to eliminate errors caused by mis-alignment and mis-detection of hard sector marks. Logic is provided to initiate a time-out count at the completion of a hard sector count. The time-out count is specified to be a period of time-within which a hard sector mark should be detected. If the time-out count counts down and a hard sector mark is not detected, then a possible error situation arises and the fault tolerant process is initiated to compensate for the lack of detection of a hard sector mark. Thus, at the end of the time-out count, a small burst count is started. This small burst count is of a shorter duration than the original burst count utilized, but is long enough to bring the head assembly to the location in the sector at the beginning of the user data at which time the hard sector count is initiated to count down the user data locations for that hard sector. Thus, the beginning of the user data area will always be determined and errors due to ill-defined user data areas caused by mis-detection of a hard sector mark are avoided.

Abstract translation: 本发明包括用于实现该方法，装置和盘格式以提供用于数据扇区的ID字段的容错检测，以便消除由于硬扇区标记的错误对准和错误检测而导致的错误。 提供逻辑以在完成硬扇区计数时启动超时计数。 超时计数被指定为要检测硬扇区标记的时间段。 如果超时计数倒计时并且没有检测到硬扇区标记，则会出现可能的错误情况，并启动容错过程以补偿缺少硬扇区标记的检测。 因此，在超时计数结束时，开始小的脉冲串计数。 这个小脉冲串计数的持续时间比原来的脉冲串计数要短，但是长度足以使头部组件在用户数据开始时到达扇区中的位置，此时硬扇区计数开始计数 该硬盘扇区的用户数据位置。 因此，将始终确定用户数据区域的开始，并避免由于硬扇区标记的错误检测而导致的不明确的用户数据区域的错误。

公开(公告)号：WO1995002247A1

公开(公告)日：1995-01-19

申请号：PCT/US1994007186

申请日：1994-06-24

Applicant: MAXTOR CORPORATION

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

IPC: G11B25/04

CPC classification number: G11B25/043

Abstract: A hard disk drive that contains three disks and complies with the type III PCMCIA specification.

Abstract translation: 包含三个磁盘并符合III型PCMCIA规范的硬盘驱动器。

公开(公告)号：WO1994017522A1

公开(公告)日：1994-08-04

申请号：PCT/US1993010342

申请日：1993-10-28

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  WANG, Vivian, H. ,  BASEHORE, David, W. ,  MORRIS, Frank, I.

IPC: G11B05/55

CPC classification number: G11B5/5521

Abstract: In a rigid disk drive having a circular disk (203) for storing digital data in a plurality of tracks, a transducer (202) for reading and writing the digital data from and to the disk (203), an actuator (201) coupled to the transducer (202) for positioning the transducer (202) from one track to another track according to a servomechanism. The actuator (201) is comprised of a stationary magnet which emanates a magnetic flux. A movable wire coil (204) is placed within this magnetic flux. When an electrical current is fed through the wire, a torque is produced which causes the actuator (201) carrying the transducer (202) to be moved. The wire comprising the coil (204) has a substantially square cross section for minimizing the resistance of the coil (204).

Abstract translation: 在具有用于在多个轨道中存储数字数据的圆盘（203）的刚性盘驱动器中，用于从盘（203）读取和写入数字数据的换能器（202），耦合到 用于根据伺服机构将换能器（202）从一个轨道定位到另一个轨道的换能器（202）。 致动器（201）由发出磁通量的固定磁体组成。 可动线圈（204）被放置在该磁通量内。 当通过导线馈送电流时，产生使得承载换能器（202）的致动器（201）被移动的扭矩。 包括线圈（204）的线具有基本正方形的横截面，用于使线圈（204）的电阻最小化。

公开(公告)号：WO1994012976A1

公开(公告)日：1994-06-09

申请号：PCT/US1993010918

申请日：1993-11-10

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  MAYO, Mike, J.

IPC: G11B05/596

CPC classification number: G11B5/5547

Abstract: A disk storage system having a mechanism for minimizing effects of slip/stick in a disk drive head assembly. A transducer is used to read data from and write data to a rotating disk. An actuator assembly is comprised of a load member onto which a flexure is attached. A slider is mounted onto the flexure. In this manner, the transducer can pitch and roll to maintain a constant height in reference to the disk's surface. A servo mechanism controls the acceleration and deceleration of the head according to a predetermined seek profile (602) specifying how the transducer is moved for a particular seek. As the transducer approaches the destination track, the profile (602) calls for a sudden deceleration surge (603) in order to compensate for misalignments ocurring during the seek due to the flexure slipping laterally in reference to the load member and sticking in that position because of friction.

Abstract translation: 一种磁盘存储系统，具有用于最小化磁盘驱动器头组件中滑动/粘滞的影响的机构。 传感器用于从旋转盘读取数据并将数据写入旋转盘。 致动器组件包括其上附接有挠曲件的负载构件。 滑块安装在挠曲件上。 以这种方式，传感器可以俯仰和滚动以相对于盘的表面保持恒定的高度。 伺服机构根据预定的寻道轮廓（602）来控制头部的加速和减速，其中规定了换能器如何为特定寻道而移动。 当传感器接近目的地轨道时，轮廓（602）需要突然的减速冲击（603），以便补偿由于在相对于负载构件横向滑动并且粘在该位置上的挠曲在寻道期间产生的不对准，因为 的摩擦。

公开(公告)号：WO1994011871A1

公开(公告)日：1994-05-26

申请号：PCT/US1993009893

申请日：1993-10-18

Applicant: MAXTOR CORPORATION

Inventor： MAXTOR CORPORATION ,  DION, F., Eugene

IPC: G11B17/02

CPC classification number: G11B33/121 ,  G11B21/22 ,  G11B33/08

Abstract: A card sized disk drive (10) which has a latch mechanism (34) that locks the actuator arm (26) when the card (10) is detached from a computer.

Abstract translation: 一种卡片尺寸的磁盘驱动器（10），其具有当卡（10）从计算机上拆下时锁定致动器臂（26）的闩锁机构（34）。