公开(公告)号：US20040212915A1

公开(公告)日：2004-10-28

申请号：US10424373

申请日：2003-04-28

申请人： International Business Machines Corporation

发明人： Alex Chliwnyj ,  David Lee Swanson

IPC分类号： G11B005/584 ,  G11B005/55 ,  G11B027/36

CPC分类号： G11B5/584 ,  G11B27/36

摘要： A system, method and an article of manufacture to provide more accurate magnetic tape servo operation are disclosed. Accurate measurements of the width of the servo pattern written on the magnetic tape are accomplished in the presence of relatively large motion of the magnetic tape. The accurate measurements of the width of the servo pattern are used to produce a corrected position error signal that provides improved servo track following to maintain the tape head at an optimal alignment for writing and reading data tracks on the tape.

摘要翻译： 公开了提供更准确的磁带伺服操作的系统，方法和制品。 记录在磁带上的伺服模式的宽度的精确测量是在存在磁带相对大的运动的情况下完成的。 使用伺服图案的宽度的精确测量来产生校正的位置误差信号，其提供改进的伺服轨迹，以将磁带头保持在用于在磁带上写入和读取数据轨道的最佳对准。

公开(公告)号：US20040174627A1

公开(公告)日：2004-09-09

申请号：US10733818

申请日：2003-12-12

申请人： Samsung Electronics Co., Ltd.

发明人： Jong-yoon Kim ,  Chang-dong Yeo ,  Seung-hyun Song ,  Geun-soo Kim

IPC分类号： G11B027/36 ,  G11B021/02

CPC分类号： G11B19/04 ,  G11B5/09 ,  G11B27/36

摘要： A method optimizing a recording current in consideration of operating temperatures of a hard disk drive and a method of setting a recording density in consideration of tracks per inch (TPI) or adjacent track erasure (ATE) characteristics. The method of optimizing the recording current measures a rate of errors under a test condition corresponding to the operating temperature of a hard disk drive, while changing a recording parameter, selects a recording parameter value corresponding to a smallest rate of errors, and optimizes the recording current for the hard disk drive under operating environmental conditions using the selected recording parameter value.

摘要翻译： 考虑到硬盘驱动器的工作温度优化记录电流的方法和考虑到每英寸轨道（TPI）或相邻磁道擦除（ATE）特性来设置记录密度的方法。 在改变记录参数的同时，优化记录电流的方法在与硬盘驱动器的工作温度相对应的测试条件下测量误差率，选择对应于最小误差率的记录参数值，并优化记录 使用所选记录参数值在工作环境条件下为硬盘驱动器的电流。

公开(公告)号：US20040136106A1

公开(公告)日：2004-07-15

申请号：US10742354

申请日：2003-12-19

发明人： Robert Glenn Biskeborn

IPC分类号： G11B027/36 ,  G11B017/00

CPC分类号： G11B15/605 ,  G11B15/60 ,  G11B15/62

摘要： A method for adjusting a tape wrap angle is described comprising the steps of operating the tape system to generate or regenerate an electrical signal in the head from the tape, either increasing or reducing the tape wrap angle as appropriate until a signal from the tape head reappears or goes to zero, then increasing the wrap angle until the desired angle is achieved as measured by the signal from the head or by moving the tape support a fixed amount. A tape recording and/or reading system with adjustable wrap angles is described which can be used with the method of the invention. The system includes one or more rollers mounted on an adjustable shaft with an eccentric or axially offset portion supporting the roller. Preferably for a two or multibump head an adjustable shaft and roller according to the invention are located on the tape-in and tape-out side of the tape head. The angular orientation of the eccentric shaft is adjustable, thereby, allowing precise adjustment of the position of the roller with respect to the tape head. Rotating the shaft moves the eccentric portion of the shaft further behind or closer to the head and, therefore, causes the roller mounted on the eccentric portion of the shaft to move similarly resulting in a change in the corresponding wrap angle of the tape in relation to the head. When the desired wrap angle is achieved, the shaft should be restrained from further rotation by an appropriate friction or other locking means. Although the invention can be used with any type of tape head, it is used to particular advantage with flat contour tape recording heads.

摘要翻译： 描述了一种用于调整磁带包裹角度的方法，包括以下步骤：操作磁带系统以从磁带产生或重新生成头部中的电信号，或者根据需要增加或减小胶带包角，直到来自磁带头的信号重新出现 或者变为零，然后增加包角，直到通过来自头部的信号测量到的所需角度或通过将带支撑件移动固定的量来实现。 描述了可以与本发明的方法一起使用的具有可调包角的磁带记录和/或读取系统。 该系统包括安装在可调节轴上的一个或多个辊，其具有支撑辊的偏心或轴向偏移部分。 优选地，对于两个或多个头部的头部，根据本发明的可调节的轴和辊子位于带头的带子和带出面侧。 偏心轴的角度定向是可调节的，从而允许精确地调节辊子相对于带头的位置。 旋转轴使轴的偏心部分进一步移动到头部附近或更靠近头部，并且因此使得安装在轴的偏心部分上的辊类似地移动，导致相对于带的相应的卷绕角度的变化 头部。 当实现期望的包角时，应该通过适当的摩擦或其它锁定装置来限制轴的进一步旋转。 虽然本发明可以用于任何类型的磁带头，但是其具有平坦的轮廓带记录头的特别优点。

公开(公告)号：US20040136104A1

公开(公告)日：2004-07-15

申请号：US10340855

申请日：2003-01-10

发明人： Jim Chiao ,  Teddy Hadiono ,  Allen Cheng-wu Hu ,  Annie Mylang Le ,  Perry Neos ,  Chad Schroter ,  Eric Wong ,  Yan Zang ,  Charles W. Miller

IPC分类号： G11B027/36 ,  G11B005/09 ,  G11B015/12 ,  G11B021/02

CPC分类号： G11B5/012 ,  G11B5/59633 ,  G11B5/59688 ,  G11B20/1217 ,  G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1278 ,  G11B2020/1292

摘要： A method of defining storage format in a data storage device having a plurality of storage media and a plurality of corresponding data transducer heads, each transducer head for recording on and playback of information from a corresponding storage medium. A storage format is defined in at least one region on each storage medium, wherein each region includes a plurality of concentric tracks for recording on and playback of information. The method includes: moving each storage medium with respect to the corresponding transducer head and reading data from each storage medium with the corresponding transducer head; measuring a record/playback performance capability of each transducer head; selecting a group of track densities, one track density for each region on a storage medium, based on the measured record/playback performance capability of the corresponding transducer head.

摘要翻译： 一种在具有多个存储介质和多个对应的数据传感器头的数据存储设备中定义存储格式的方法，每个换能器头用于从相应的存储介质记录和回放信息。 在每个存储介质上的至少一个区域中定义存储格式，其中每个区域包括用于在信息上进行记录和重放的多个同心轨道。 该方法包括：相对于相应的换能器头移动每个存储介质，并用相应的换能器头从每个存储介质读取数据; 测量每个换能器头的记录/回放性能; 基于相应的换能器头的测量的记录/重放性能来选择一组磁道密度，一个磁道密度用于存储介质上的每个区域。

公开(公告)号：US20040125493A1

公开(公告)日：2004-07-01

申请号：US10677723

申请日：2003-10-01

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Susumu Shimotono ,  Tetsuya Noguchi ,  Mitsuru Ogawa ,  Akiyoshi Tanaka

IPC分类号： G11B021/02 ,  G11B027/36

CPC分类号： G11B5/5582 ,  G11B19/04 ,  G11B21/12

摘要： A magnetic disk device protection mechanism comprises a sensor that acquires information on changes in the environment of a magnetic disk device, a sensor driver, a shock manager that analyzes the information acquired by the sensor driver together with a history of the information to determine the status where the magnetic disk device is used to predict a shock, and an HDD filter driver that controls operations of the magnetic disk device including the escape of a magnetic head. The magnetic disk device can also comprise a diagnosis processing section that operates if a shock has occurred actually, to check whether or not the magnetic head could have completely escaped before the occurrence of this shock to carry out diagnosis as to whether or not a fault is occurring in the magnetic disk.

摘要翻译： 磁盘装置保护机​​构包括：传感器，其获取关于磁盘装置的环境变化的信息;传感器驱动器;冲击管理器;分析由传感器驱动器获取的信息以及信息的历史以确定状态 其中磁盘装置用于预测冲击，以及HDD过滤器驱动器，其控制包括磁头逸出的磁盘装置的操作。 磁盘装置还可以包括诊断处理部分，其在实际发生冲击时进行操作，以检查磁头是否可以在发生该冲击之前完全逃脱以进行关于故障是否为 发生在磁盘中。

公开(公告)号：US20040120069A1

公开(公告)日：2004-06-24

申请号：US10652760

申请日：2003-08-29

申请人： Hitachi Global Storage Technologies

发明人： Nobuyuki Kitazaki ,  Tomoharu Maeno ,  Nobuya Matsubara ,  Tamokazu Suzuki

IPC分类号： G11B021/02 ,  G11B027/36

CPC分类号： G11B5/59622

摘要： A mechanism to allow accurate control of the position of a magnetic head even if the state of the magnetic head has changed due to instability.

摘要翻译： 即使磁头的状态由于不稳定性而改变，也允许精确地控制磁头的位置的机构。

公开(公告)号：US20040095134A1

公开(公告)日：2004-05-20

申请号：US10697300

申请日：2003-10-31

发明人： Chun Tse ,  Charles S. Krafft ,  Isaak D. Mayergoyz ,  Dragos I. Mircea

IPC分类号： G01R033/12 ,  G11B027/36

CPC分类号： G11B5/4555 ,  G11B5/00 ,  G11B5/012 ,  G11B5/455 ,  G11B5/59627 ,  G11B20/10009 ,  G11B20/1816 ,  G11B27/34 ,  G11B27/36 ,  G11B2005/001 ,  G11B2220/20

摘要： A system (10) and method for high-speed massive magnetic imaging on a spin-stand (12) is provided. The system (10) includes a spin-stand system (12) for driving a rotational spindle (20) to which a magnetic hard disk (30) is mounted. A magnetic read head (40) reads data from disk (30) and is in electrical communication with a universal head preamplification board (50). The universal head preamplification board (50) outputs readable voltage signals which are transmitted to an oscilloscope (60) for displaying a read-back voltage display (70). The signals are processed by a processing means (90) to generate scanned image data (100) on a display means. The display signals (70) are utilized to calibrate the magnetically read data to account for the eccentricity of the hard disks with respect to the center of rotation of the spin-stand spindle. Whole tracks of hard disk data can be imaged through the process of nulltrack-centeringnull and nulltrack-followingnull. An alignment algorithm is used to align the magnetically read data to compensate for the instability of the triggering signal.

摘要翻译： 提供了一种用于在旋转架（12）上进行高速大规模磁性成像的系统（10）和方法。 系统（10）包括用于驱动安装有磁性硬盘（30）的旋转主轴（20）的旋转架系统（12）。 磁读头（40）从盘（30）读取数据，并与万用头前置放大板（50）电连通。 万用头前置放大板（50）输出可读电压信号，该电压信号被传送到示波器（60）以显示回读电压显示（70）。 这些信号由处理装置（90）处理，以在显示装置上生成扫描图像数据（100）。 显示信号（70）用于校准磁读数据以解决硬盘相对于旋转架心轴的旋转中心的偏心度。 整个轨道的硬盘数据可以通过“跟踪中心”和“跟踪跟踪”的过程进行成像。 使用对准算法对准磁读取数据以补偿触发信号的不稳定性。

公开(公告)号：US20040080845A1

公开(公告)日：2004-04-29

申请号：US10621354

申请日：2003-07-18

申请人： Samsung Electronics Co., Ltd.

发明人： Chang-Dong Yeo ,  Jong-Yoon Kim ,  Chool-Hoon Park

IPC分类号： G11B027/36 ,  G11B021/02

CPC分类号： G11B27/36 ,  G11B5/012 ,  G11B5/455 ,  G11B2005/001 ,  G11B2005/0013 ,  G11B2220/20

摘要： A method and apparatus to determine a magnetic write width of a magnetic head using burst patterns. The method includes seeking a target track on a magnetic disc to write a burst pattern on the target track; seeking tracks adjacent to the target track to write burst patterns on the adjacent tracks, which are offtracked by a predetermined percentage toward the target track, moving the magnetic head along a radial direction of the magnetic disc and measure an output signal of the magnetic head, to create an offtrack profile, and determining an amplitude reduction ratio of the target track from the offtrack profile, to determine a magnetic write width corresponding to the determined amplitude reduction ratio.

摘要翻译： 使用突发图案确定磁头的磁写入宽度的方法和装置。 该方法包括在磁盘上寻找目标轨迹以将目标轨迹上的脉冲串模式写入; 寻找与目标轨道相邻的轨迹，以在相对于目标轨道预定百分比的轨迹上相冲突的轨迹上写入脉冲串图案，沿着磁盘的径向方向移动磁头并测量磁头的输出信号， 以创建一个纵向轮廓，以及根据俯视轮廓确定目标轨迹的幅度减小率，以确定与所确定的幅度减小率相对应的磁写入宽度。

公开(公告)号：US20040001272A1

公开(公告)日：2004-01-01

申请号：US10465858

申请日：2003-06-20

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Hiroshi Imai

IPC分类号： G11B019/02 ,  G11B027/36

CPC分类号： G11B27/36

摘要： A disk drive is disclosed which has an event management function. At an event occurring time such as an error generation, the disk drive records the event information together with time data. A CPU of the disk drive is configured to, at a power ON time, allow the time data which is received from a host system to be stored in a memory. At the time of an error occurring, the CPU, while using the time measured by an internal timer and time data, generates time data which is synchronized with the internal time of the host system.

摘要翻译： 公开了一种具有事件管理功能的磁盘驱动器。 在诸如错误生成的事件发生时，磁盘驱动器将事件信息与时间数据一起记录。 磁盘驱动器的CPU被配置为在电源接通时间允许从主机系统接收的时间数据被存储在存储器中。 在发生错误时，CPU在使用内部定时器测量的时间和时间数据的同时，生成与主机系统的内部时间同步的时间数据。

公开(公告)号：US20030218959A1

公开(公告)日：2003-11-27

申请号：US10392001

申请日：2003-03-18

发明人： In-Shuen Lee ,  Cheng-Fu Lee

IPC分类号： G11B007/00 ,  G11B007/09 ,  G11B007/095 ,  G11B011/03 ,  G11B011/105 ,  G11B011/11 ,  G11B011/115 ,  G11B011/12 ,  G11B015/04 ,  G11B019/04 ,  G11B020/18 ,  G11B027/36 ,  G11B033/02 ,  G11B005/58

CPC分类号： G11B33/121 ,  G11B17/0404 ,  G11B17/051 ,  G11B19/10

摘要： A disc detection apparatus for a slot-in optical disc drive. The apparatus includes a body, a light emitting device, a rolling unit, and a light receiving device. The light emitting device is disposed on the body, as is the rolling unit. The light receiving device is disposed on the rolling unit, wherein the light receiving device and the rolling unit are integral, conserving considerable deployment space.

摘要翻译： 一种用于插入式光盘驱动器的盘检测装置。 该装置包括主体，发光装置，滚动单元和光接收装置。 发光装置与轧制单元一样设置在主体上。 光接收装置设置在滚动单元上，其中光接收装置和滚动单元是一体的，节省了相当大的部署空间。