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公开(公告)号：US08982500B1
公开(公告)日：2015-03-17
申请号：US14450829
申请日：2014-08-04
Applicant: International Business Machines Corporation
Inventor： Giovanni Cherubini , Jens Jelitto , Angeliki Pantazi
Abstract: A control device for controlling tape transport within a tape transport system is disclosed. The control device includes a determination unit, which includes at least a first servo channel and a second servo channel for determining a first lateral position of a tape relative to the head, and for determining a difference between the first and second lateral positions. A computing unit computes a number of unsupported wraps of the tape as a function of the lateral position difference, wherein the number of unsupported wraps corresponds to the number of layers of the tape around the take-up reel having air layers in-between, and computes a spring constant of the tape as a function of the number of unsupported wraps, a radius of the take-up reel and a nominal tape path length. A calibration unit calibrates at least one unit of the tape transport system dependent on the spring constant.
Abstract translation: 公开了一种用于控制磁带传送系统内磁带传输的控制装置。 控制装置包括确定单元，该确定单元至少包括第一伺服通道和第二伺服通道，用于确定带相对于头部的第一横向位置，以及用于确定第一和第二横向位置之间的差异。 计算单元根据横向位置差来计算带子的多个不受支撑的包裹，其中不支撑的包装件的数量对应于其间具有空气层的卷取卷轴周围的带的层数，以及 根据不支持的包装的数量，卷取卷轴的半径和标称带路径长度，计算带的弹簧常数。 校准单元根据弹簧常数校准磁带传送系统的至少一个单元。
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公开(公告)号：US08891198B2
公开(公告)日：2014-11-18
申请号：US13947843
申请日：2013-07-22
Applicant: International Business Machines Corporation
Inventor： Nhan X. Bui , Giovanni Cherubini , Jens Jelitto , Angeliki Pantazi , Kazuhiro Tsuruta
CPC classification number: G11B15/1808 , G11B5/58 , G11B5/584 , G11B15/602 , G11B20/10009 , G11B20/10305 , G11B20/10388 , G11B2220/90
Abstract: In a method for operating a tape storage device comprising a tape head for reading and/or writing data from/to a tape in the tape storage device, a first tape skew value concerning a skew of the tape is determined and the first tape skew value is converted into a first skew control signal by means of a skew feedback controller. A second tape skew value concerning the skew of the tape is determined, and the second tape skew value is converted into a second skew control signal by a feed-forward controller. At least one compensation signal for the second skew control signal is determined, and at least one of a rotational orientation of the tape head and a tape motion direction of the tape is controlled dependent on the second skew control signal and the compensation signal in case the first skew control signal fails.
Abstract translation: 在一种用于操作磁带存储设备的方法中，该磁带存储设备包括用于从磁带存储设备中的磁带读取和/或写入数据的磁带头，确定了关于磁带的偏斜的第一磁带扭曲值，并且第一磁带扭曲值 通过偏斜反馈控制器转换成第一偏斜控制信号。 确定关于带的偏斜的第二带偏移值，并且通过前馈控制器将第二带偏移值转换为第二偏斜控制信号。 确定用于第二歪斜控制信号的至少一个补偿信号，并且根据第二歪斜控制信号和补偿信号来控制带头的旋转取向和带的带运动方向中的至少一个， 第一歪斜控制信号失败。
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3.发明申请公开(公告)号：US20120127600A1
公开(公告)日：2012-05-24
申请号：US12668638
申请日：2009-11-17
Applicant: Yukiyoshi Takamura , Tomohisa Ogasawara , Yuji Hata
Inventor： Yukiyoshi Takamura , Tomohisa Ogasawara , Yuji Hata
IPC: G11B15/48
CPC classification number: G11B19/209 , G11B33/128
Abstract: To provide a storage control device capable of changing the rotation speed of storage devices.A plurality of hard disk drives 1 is mounted in the device mounting unit 7. The rotation speed control unit 2 detects the mounting location of each hard disk drive 1, and determines the rotation speed in accordance with the location of each hard disk drive 1. The rotation speeds of adjacent hard disk drives 1 are different from each other. The rotation speed control unit 2 changes the rotation speed of each hard disk drive 1 to the determined rotation speed.
Abstract translation: 提供能够改变存储装置的转速的存储控制装置。 多个硬盘驱动器1安装在装置安装单元7中。转速控制单元2检测每个硬盘驱动器1的安装位置，并根据每个硬盘驱动器1的位置确定转速。 相邻硬盘驱动器1的旋转速度彼此不同。 转速控制单元2将每个硬盘驱动器1的转速改变到所确定的转速。
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4.发明授权Recording medium and recording apparatus for using test data recorded in a blank zone to refine data recording 有权用于使用记录在空白区域中的测试数据的记录介质和记录装置来细化数据记录公开(公告)号：US08125725B1
公开(公告)日：2012-02-28
申请号：US12184196
申请日：2008-07-31
Applicant: Kiyotada Ito
Inventor： Kiyotada Ito
Abstract: Methods, systems and computer program products for measuring a distance between a write head and a read head are described. The measured distance allows the position of the write head (e.g., during writing) and read head (e.g., during reading) to be compensated. The compensation further allows a hard disk drive to accurately position the read head over a desired sector without displacing the write head from the sector.
Abstract translation: 描述了用于测量写入头和读取头之间的距离的方法，系统和计算机程序产品。 测量的距离允许写入头的位置（例如，在写入期间）和读取头（例如在读取期间）被补偿。 补偿还允许硬盘驱动器将读取头精确地定位在期望的扇区上，而不将写头从扇区移位。
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公开(公告)号：US20110292539A1
公开(公告)日：2011-12-01
申请号：US13115163
申请日：2011-05-25
Applicant: Masao FUJITA , Sadamu Kuse
Inventor： Masao FUJITA , Sadamu Kuse
CPC classification number: G11B5/4893 , G11B5/00813 , G11B5/40
Abstract: A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state, when making transition of the magnetic tape from a running state to a stopped state, or when reversing the transportation direction of the magnetic tape, is provided. In a state where any one of a magnetic head and a magnetic tape moves and the other rests (i.e., a state where static friction may occur), such as at the time of starting transportation of the magnetic tape, at the time of stopping the tape in a running state, and at the time of reversing the transportation direction of the magnetic tape, a head displacing portion vibrates the magnetic head under the control by a displacement control portion, and thus no static friction occurs between the magnetic head and the magnetic tape. Therefore, the risk of causing damage to the magnetic head (such as an MR head unit equipped with an MR element) or the magnetic tape can be reduced.
Abstract translation: 一种磁带驱动装置，当使磁带从运行状态转移到停止状态时，在使磁带从停止状态转移到运行状态时不会对磁头或磁带造成损坏 状态，或者当使磁带的运送方向反转时。 在磁头和磁带中的任何一个移动的状态下，另一个位置（即，可能发生静摩擦的状态），例如在开始运送磁带时，在停止时 胶带处于运行状态，并且在反转磁带的传送方向时，磁头位移部分在位移控制部分的控制下使磁头振动，从而在磁头和磁体之间不产生静摩擦 胶带。 因此，可以减少对磁头（例如配备有MR元件的MR头单元）或磁带造成损害的风险。
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Patent Agency Ranking
公开(公告)号：US20100246051A1
公开(公告)日：2010-09-30
申请号：US12751740
申请日：2010-03-31
Applicant: Ezio Galbiati , Frederic Pascal Bonvin
Inventor： Ezio Galbiati , Frederic Pascal Bonvin
IPC: G11B15/48
CPC classification number: G11B19/2063
Abstract: A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor.
Abstract translation: 一种在没有外部电源电压的情况下停止主轴电机的方法和电路，其中主轴电机被构造成移动设置有由音圈电机移动的至少一个读/写头的硬盘， 多个线圈。 该方法包括整流主轴电动机的反电动势以产生制动电流，以至少一部分制动电流驱动音圈电动机，直到主轴电动机的速度变得低于预定的停止速度，并且在 停放音圈电动机的至少一个读写头，通过使主轴电动机的线圈短路来停止主轴电动机。
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7.发明授权公开(公告)号：US07494727B2
公开(公告)日：2009-02-24
申请号：US11187912
申请日：2005-07-25
Applicant: Takahiro Suwa , Kazuya Shimakawa
Inventor： Takahiro Suwa , Kazuya Shimakawa
CPC classification number: G11B5/855
Abstract: A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since the occurrence of a crash of a magnetic head is suppressed. The magnetic recording medium comprises a recording layer formed over a substrate in a predetermined concavo-convex pattern to form recording elements as a convex portion of the concavo-convex pattern and a non-magnetic filler element filled in a concave portion between the recording elements. In this configuration, the top surface of the filler element is formed in a shape partially recessed toward the substrate side to form a groove having a width smaller than the width of the concave portion on the surface of the magnetic recording medium.
Abstract translation: 公开了一种其中以预定的凹凸图案形成记录层的磁记录介质和包括该磁记录介质的记录和再现装置。 磁记录介质由于磁头碰撞的发生被抑制而具有高的面密度和高的可靠性。 磁记录介质包括以预定的凹凸图案形成在基板上的记录层，以形成作为凹凸图案的凸部的记录元件和填充在记录元件之间的凹部中的非磁性填充元件。 在这种构造中，填充元件的顶表面形成为朝向基板侧部分地凹陷的形状，以形成宽度小于磁记录介质表面上的凹部的宽度的凹槽。
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公开(公告)号：US07372657B2
公开(公告)日：2008-05-13
申请号：US11440599
申请日：2006-05-24
Applicant: Richard Allen Gill , Bradley E. Whitney
Inventor： Richard Allen Gill , Bradley E. Whitney
IPC: G11B15/48
CPC classification number: G11B15/467
Abstract: In one embodiment, a method and apparatus for minimizing unload times in a tape drive system is disclosed. The method includes: writing to a tape in serpentine format; reaching a comparison point on the tape, wherein at the comparison point an actual capacity is compared to an expected capacity; utilizing the comparison at the comparison point to estimate a distance from the comparison point until a guaranteed capacity for the tape is reached; and determining a turn-around point on the tape based on the estimated distance, wherein at the turn-around point a tape drive writing to the tape to stop writing in a first direction and then continue writing in a second direction opposite from the first direction and towards a physical beginning of the tape. Other embodiments are also disclosed.
Abstract translation: 在一个实施例中，公开了一种用于最小化磁带驱动系统中的卸载时间的方法和装置。 该方法包括：以蛇形格式写入磁带; 达到磁带上的比较点，其中在比较点将实际容量与预期容量进行比较; 利用比较点的比较来估计距离比较点的距离，直到达到带的保证容量; 以及基于估计的距离确定磁带上的转折点，其中在转向点处，磁带驱动器写入磁带以停止在第一方向上的写入，然后在与第一方向相反的第二方向上继续写入 并朝着磁带的物理开始。 还公开了其他实施例。
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公开(公告)号：US20070115579A1
公开(公告)日：2007-05-24
申请号：US11282532
申请日：2005-11-18
Applicant: Khanh Ngo
Inventor： Khanh Ngo
CPC classification number: G11B5/09 , G11B20/182 , G11B27/36 , G11B2220/41 , G11B2220/90
Abstract: Applicant's invention comprises a method to test a tape drive and its mid-tape recovery abilities. Applicant's method provides a tape drive, and disposes a magnetic tape in that tape drive, wherein the magnetic tape comprises a physical beginning of tape (“PBOT”) and a physical end of tape (“PEOT”). The method writes data from the PBOT to the PEOT, rewinds the tape to the PBOT, and moves the tape from said PBOT toward the PEOT. While the magnetic tape is still moving, the method resets the tape drive. The method then validates the data written to the magnetic tape.
Abstract translation: 申请人的发明包括测试磁带驱动器及其中间磁带恢复能力的方法。 申请人的方法提供磁带驱动器，并在该磁带驱动器中配置磁带，其中磁带包括磁带的物理开始（“PBOT”）和磁带的物理端（“PEOT”）。 该方法将数据从PBOT写入PEOT，将磁带倒带到PBOT，并将磁带从PBOT移动到PEOT。 当磁带仍在移动时，该方法会重置磁带驱动器。 该方法然后验证写入磁带的数据。
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10.发明申请Method and apparatus for monitoring failure of memory device, and computer product 有权用于监控存储器件和计算机产品故障的方法和装置公开(公告)号：US20060126211A1
公开(公告)日：2006-06-15
申请号：US11086203
申请日：2005-03-23
Applicant: Makoto Sasaki
Inventor： Makoto Sasaki
IPC: G11B15/48
CPC classification number: G11B27/36 , G11B15/07 , G11B15/689 , G11B27/328 , G11B2220/655 , G11B2220/90
Abstract: A memory data reader of a magnetic tape library device reads from a memory of a magnetic tape cartridge containing a magnetic tape, information pertaining to data read from or written to the magnetic tape by a magnetic tape drive device. A maintenance/replace determining unit determines whether the magnetic tape drive device needs maintenance or replacement from the read information.
Abstract translation: 磁带库装置的存储器数据读取器从包含磁带的磁带盒的存储器中读取与由磁带驱动装置读取或写入磁带的数据有关的信息。 维护/更换确定单元确定磁带驱动装置是否需要从读取的信息进行维护或更换。
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