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公开(公告)号：US08902531B2
公开(公告)日：2014-12-02
申请号：US13596876
申请日：2012-08-28
IPC分类号： G11B15/46
摘要： A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.
摘要翻译： 在磁带驱动操作期间动态地确定最大速度，以获得产生避免反向干扰的停止写（SW）操作量的位置误差信号（PES）的统计标准偏差。 磁带速度被调整到最大速度。
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公开(公告)号：US20130021693A1
公开(公告)日：2013-01-24
申请号：US13555833
申请日：2012-07-23
申请人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
发明人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
IPC分类号： G11B15/46
CPC分类号： G11B15/60
摘要： A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
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公开(公告)号：US20130021692A1
公开(公告)日：2013-01-24
申请号：US13555850
申请日：2012-07-23
申请人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
发明人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
IPC分类号： G11B15/18
CPC分类号： G11B15/60
摘要： A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
摘要翻译： 磁带驱动系统的磁带移动限制包括可倾斜的带滚子轴承，其具有适于当滚筒旋转时接触和接合带的表面的开槽表面;以及致动器，其适于在致动器为 致动，以控制胶带的横向位置。 在一个实施例中，在一个实施例中，可旋转滚子轴承的滚筒是利用可移动磁体和导磁材料返回路径结构之间的磁吸引力在枢转轴线上被偏置在第一位置。 辊筒通过传导电流通过固定线圈在枢轴上枢转，以产生磁场，该磁场由返回路径结构传导以与磁体的磁场相互作用。 描述和要求保护其他实施例。
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24.发明申请APPARATUS AND METHOD TO ADJUST THE POSITIONS OF A WRITE ELEMENT AND READ ELEMENT DISPOSED ON A READ/WRITE HEAD 失效设备和方法来调整写入元素和阅读元素在阅读/写入头上的位置公开(公告)号：US20100302677A1
公开(公告)日：2010-12-02
申请号：US12475777
申请日：2009-06-01
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A method to adjust the positions of a write element and read element disposed on a read/write head comprising a first assembly independently moveable along a first axis and comprising a first servo element, a second servo element, and the write element disposed between the first servo element and the second servo element and a second assembly independently moveable along the first axis and comprising a third servo element, a fourth servo element, and the read element disposed between the third servo element and the fourth servo element. The method moves a sequential information storage medium adjacent to the read/write head along a second axis, wherein the second axis is substantially orthogonal to the first axis, and determines a dynamic skew for the sequential information storage medium with respect to the read/write head using the first servo element and the second servo element. The method then positions the first assembly with respect to the second assembly to correct for that dynamic skew angle.
摘要翻译： 一种用于调整设置在读/写头上的写入元件和读取元件的位置的方法，包括第一组件，其可以沿着第一轴独立地移动并且包括第一伺服元件，第二伺服元件以及设置在第一 伺服元件和第二伺服元件以及第二组件可独立地沿着第一轴线移动并且包括第三伺服元件，第四伺服元件以及设置在第三伺服元件和第四伺服元件之间的读取元件。 该方法沿着第二轴移动与读/写头相邻的顺序信息存储介质，其中第二轴基本上与第一轴正交，并确定顺序信息存储介质相对于读/写的动态偏移 使用第一伺服元件和第二伺服元件。 该方法然后将第一组件相对于第二组件定位以校正该动态偏斜角。
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25.发明申请SETTING EDGE STRESS SIGNAL IN MAGNETIC TAPE DATA STORAGE CARTRIDGE MEMORY IN RESPONSE TO SERVO DETECTION ERROR SIGNALS 有权在磁带数据存储库中存储边缘应力信号响应伺服检测错误信号公开(公告)号：US20100202083A1
公开(公告)日：2010-08-12
申请号：US12367315
申请日：2009-02-06
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B5/00813
摘要： Methods, magnetic tape data storage drives, data storage systems, and magnetic tape data storage cartridges. A system having at least one magnetic tape data storage drive is configured to handle a magnetic tape cartridge comprising a magnetic tape data storage media and accompanying cartridge memory. The magnetic tape media comprises a plurality of longitudinal servo bands, the servo bands separated by data bands. Two servo bands, each at opposite sides of a data band are sensed. In response to at least one servo detection error signal of one of the two servo bands, an edge stress signal is set to the cartridge memory of the magnetic tape cartridge. Then, for example, after reloading the cartridge, the cartridge memory is inspected for a set edge stress signal; and, if the edge stress signal is set, only read operations are allowed with respect to the inspected magnetic tape data storage cartridge.
摘要翻译： 方法，磁带数据存储驱动器，数据存储系统和磁带数据存储盒。 具有至少一个磁带数据存储驱动器的系统被配置为处理包括磁带数据存储介质和附带的盒存储器的磁带盒。 磁带介质包括多个纵向伺服带，伺服带由数据带分隔开。 感测到两个伺服带，每个在数据带的相对侧。 响应于两个伺服带中的一个的至少一个伺服检测误差信号，将边缘应力信号设置到磁带盒的盒存储器。 然后，例如，在重新加载盒之后，检查盒存储器的设定边缘应力信号; 并且如果设置了边缘应力信号，则只能对被检查的磁带数据存储盒进行读取操作。
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公开(公告)号：US20100181949A1
公开(公告)日：2010-07-22
申请号：US12355495
申请日：2009-01-16
申请人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
发明人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
摘要： An apparatus for controlling a wheel motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the wheel motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the wheel motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.
摘要翻译： 提供了一种用于控制车轮电动机的装置。 提供多个开关，用于控制通过车轮马达的马达线圈的电流方向。 无刷电机控制电路连接到多个开关中的每一个。 响应于调整车轮电动机的角速度和角加速度之一的请求，多个开关被激活，以将电动机线圈放置在预定的配置中，以最大限度地提高转矩或减少总反向电动势（BEMF） 电机线圈。
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27.发明申请公开(公告)号：US20100067139A1
公开(公告)日：2010-03-18
申请号：US12212568
申请日：2008-09-17
IPC分类号： G11B15/18
CPC分类号： G11B5/584
摘要： Provided are a method, storage controller, and tape drive for adjusting read heads based on misregistration calculated from servo patterns. A plurality of first read heads read a plurality of servo patterns on a storage medium. A determination is made from the read servo patterns a skew at which the first read heads are positioned with respect to the servo patterns written to the storage medium. A determination is made of an adjustment factor to eliminate the determined skew. A plurality of second read heads that read the storage medium are adjusted by the adjustment factor.
摘要翻译： 提供了一种用于基于从伺服模式计算的重新排列来调整读取头的方法，存储控制器和磁带驱动器。 多个第一读取头在存储介质上读取多个伺服图案。 从读取的伺服模式确定第一读取头相对于写入存储介质的伺服模式的位置偏移。 确定调整因子以消除确定的偏差。 通过调节因子来调整读取存储介质的多个第二读取头。
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28.发明授权Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system 有权在闭环电动机控制系统中使用脉冲宽度调制的存储驱动器中的EMF减小公开(公告)号：US07675255B2
公开(公告)日：2010-03-09
申请号：US11669615
申请日：2007-01-31
申请人： Allen K. Bates , Nhan Xuan Bui , Reed A. Hancock , Louis P. Russo
发明人： Allen K. Bates , Nhan Xuan Bui , Reed A. Hancock , Louis P. Russo
IPC分类号： H02P3/00
摘要： A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a BEMF current into the power supply, and the electric motor is connected to a power return during a segment or an entirety of the deceleration period of the electric motor to dissipate any BEMF voltage within the electric motor.
摘要翻译： 存储驱动器在存储驱动器的电动机的减速期间实施用于BEMF电压降低的方法。 在电动机的整个减速期间，电动机与电源断开，以防止BEMF电流流向电源，电动马达与电力回路连接， 电动机的整个减速期间，以耗散电动机内的任何BEMF电压。
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公开(公告)号：US20100052584A1
公开(公告)日：2010-03-04
申请号：US12202854
申请日：2008-09-02
申请人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
发明人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
摘要： An apparatus for controlling an electric motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the electric motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the electric motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.
摘要翻译： 提供一种用于控制电动机的装置。 提供多个开关，用于控制电动机的电动机线圈的电流方向。 无刷电机控制电路连接到多个开关中的每一个。 响应于调整电动机的角速度和角加速度之一的请求，多个开关被激活，以将电动机线圈放置在预定的配置中以使转矩最大化或者减小总反向电动势（BEMF） 电机线圈。
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公开(公告)号：US07605992B2
公开(公告)日：2009-10-20
申请号：US12020961
申请日：2008-01-28
IPC分类号： G11B5/09
CPC分类号： G11B5/584 , G11B5/00813
摘要： A tape drive system which includes the ability to reliably reproduce LPOS information even if both of the servo channels of the tape drive system could not detect the LPOS information due to defects. The system recognizes that an LPOS sequence is sequentially incremented by one if a tape is moving in a forward direction and decremented by one if the tape is moving in a backward direction. This sequential property of the LPOS information lends itself to LPOS prediction, where the LPOS prediction is the previous LPOS value plus one if the tape is moving forward and the previous LPOS value minus one if the tape is moving backward. Even if the LPOS words from the two servo channels are both bad, but not all of the bits in the LPOS word are bad. The system uses the remaining good bits from the two servo channels to verify all of the bits of the LPOS prediction word.
摘要翻译： 即使磁带驱动系统的两个伺服通道都由于缺陷而无法检测到LPOS信息，也能够可靠地再现LPOS信息的磁带驱动系统。 如果磁带正向移动，则系统识别LPOS序列依次增加1，如果磁带沿向后方向移动，则LPOS序列递减1。 LPOS信息的这种顺序属性适用于LPOS预测，其中LPOS预测是先前的LPOS值，如果磁带正向前移动，则前一LPOS值减去1，如果磁带向后移动，则前一LPOS值减1。 即使来自两个伺服通道的LPOS字都是坏的，但LPOS字中的所有位都不好。 该系统使用来自两个伺服通道的剩余良好位来验证LPOS预测字的所有位。
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