公开(公告)号：US07430087B2

公开(公告)日：2008-09-30

申请号：US11470171

申请日：2006-09-05

申请人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Daniel J. Winarski

发明人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Daniel J. Winarski

IPC分类号： G11B15/46

CPC分类号： G11B15/18 ,  G11B5/584 ,  G11B19/28

摘要： A velocity calculator performs high-order calculations of servo frame velocities of a storage media, particularly tape and disk. The velocity calculator employs a servo frame indexing module for generating a first-order preceding servo frame velocity signal indicative of a first-order calculation of a preceding servo frame velocity including a first-order preceding servo frame error term based on first-order current servo frame velocity signal indicative of a first-order calculation of a current servo frame velocity including a first-order current servo frame error term. The velocity calculator further employs a velocity estimating module for generating a higher-order current servo frame velocity signal indicative of a second or higher order velocity calculation of the current servo frame velocity including a higher-order current servo frame error term based on the first-order preceding servo frame velocity signal and the first-order current servo frame velocity signal.

摘要翻译： 速度计算器执行存储介质，特别是磁带和磁盘的伺服帧速度的高阶计算。 速度计算器采用伺服帧索引模块，用于产生一级先前的伺服帧速度信号，该信号表示包括基于一阶电流伺服的前一伺服帧误差项的先前伺服帧速度的一阶计算 指示包括一阶电流伺服帧误差项的当前伺服帧速度的一阶计算的帧速度信号。 速度计算器还采用速度估计模块，用于产生指示当前伺服帧速度的第二或更高阶速度计算的较高阶电流伺服帧速度信号，该速度包括基于第一阶段的高阶电流伺服帧误差项， 先前的伺服帧速度信号和一阶电流伺服帧速度信号。

公开(公告)号：US20100121825A1

公开(公告)日：2010-05-13

申请号：US12270101

申请日：2008-11-13

申请人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Frank Krick ,  Ulf Troppens ,  Daniel Winarski

发明人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Frank Krick ,  Ulf Troppens ,  Daniel Winarski

IPC分类号： G06F12/02

CPC分类号： G06F17/30156

摘要： A method for deduplicating and managing data blocks within a file system includes adding a deduplication identifier to each pointer pointing to a data block to indicate whether the data block is deduplicated, detecting duplicate data blocks, determining whether one of the duplicate data blocks has been deduplicated, when detected, determining that one duplicate data block is a master copy when it is determined that one duplicate data block has been deduplicated, selecting one of the duplicate data blocks to be a master copy when it is determined that the duplicate data blocks have not been deduplicated, and setting the deduplication identifier of the selected duplicate data block to indicate deduplication, and determining that the other duplicate data block is a new duplicate data block and setting the deduplication identifier of the other duplicate data block to indicate deduplication and directing the respective pointer to the master copy.

摘要翻译： 一种用于对文件系统内的数据块进行重复数据删除和管理的方法包括：将重复数据删除标识符添加到指向数据块的每个指针，以指示数据块是否被重复数据删除，检测重复数据块，确定重复数据块中的一个是否已被重复数据删除 当检测到时，当确定一个重复数据块已被重复数据删除时，确定一个重复数据块是主副本，当确定重复数据块没有被复制时，选择一个复制数据块作为主副本 被重复数据删除，并且将所选择的重复数据块的重复数据删除标识符设置为指示重复数据消除，并且确定另一个重复数据块是新的重复数据块，并且设置其他重复数据块的重复数据删除标识符以指示重复数据删除并且指示相应的 指向主副本的指针。

公开(公告)号：US5566151A

公开(公告)日：1996-10-15

申请号：US474594

申请日：1995-06-07

申请人： Allen K. Bates ,  Masud Mansuripur

发明人： Allen K. Bates ,  Masud Mansuripur

IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105

CPC分类号： G11B7/131 ,  G11B11/10576 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/1372 ,  G11B2007/13722 ,  G11B7/22

摘要： An optical device has an optical array detector with an array of optical receptors (each receptor is an individual photo detector) that has a greater cross-sectional extent than an impinging light beam. The receptors have respective light receiving areas smaller than the a cross-sectional area of the impinging light beam. A ring lens passes a received light beam to the receptor array. A ring lens refracts a defocused and off-track impinging light beam whereby the optical refractive properties of the ring lens change the cross-sectional form of the received light beam in accordance with status of the light beam. Refraction of the received light beam in the ring lens distorts the beam cross-sectional shape for indicating focus and location errors. Provisions are made for automatic calibration of the impinging beam to a current position of the array detector physical position by the optical device. Optical detection and re-calibration is effected by a digital signal processor.

摘要翻译： 光学装置具有光学阵列检测器，该光学阵列检测器具有与入射光束相比更大的横截面程度的光学受体阵列（每个受体是单独的光检测器）。 所述受体具有小于所述入射光束的横截面面积的相应的光接收面积。 环形透镜将接收的光束通过接收器阵列。 环形透镜折射散焦和偏离轨道的入射光束，由此环形透镜的光学折射特性根据光束的状态改变接收光束的横截面形状。 接收光束在环形透镜中的折射使用于指示焦点和位置误差的光束横截面形状发生变形。 规定了通过光学装置将撞击光束自动校准到阵列检测器物理位置的当前位置。 光学检测和重新校准由数字信号处理器实现。

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

CPC分类号： H02P6/24 ,  G11B15/22 ,  G11B15/48

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。

公开(公告)号：US08131687B2

公开(公告)日：2012-03-06

申请号：US12270101

申请日：2008-11-13

申请人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Frank Krick ,  Ulf Troppens ,  Daniel Winarski

发明人： Allen K. Bates ,  Nils Haustein ,  Craig A. Klein ,  Frank Krick ,  Ulf Troppens ,  Daniel Winarski

IPC分类号： G06F7/14 ,  G06F13/00

CPC分类号： G06F17/30156

摘要： A method for deduplicating and managing data blocks within a file system includes adding a deduplication identifier to each pointer pointing to a data block to indicate whether the data block is deduplicated, detecting duplicate data blocks, determining whether one of the duplicate data blocks has been deduplicated, when detected, determining that one duplicate data block is a master copy when it is determined that one duplicate data block has been deduplicated, selecting one of the duplicate data blocks to be a master copy when it is determined that the duplicate data blocks have not been deduplicated, and setting the deduplication identifier of the selected duplicate data block to indicate deduplication, and determining that the other duplicate data block is a new duplicate data block and setting the deduplication identifier of the other duplicate data block to indicate deduplication and directing the respective pointer to the master copy.

摘要翻译： 一种用于对文件系统内的数据块进行重复数据删除和管理的方法包括：将重复数据删除标识符添加到指向数据块的每个指针，以指示数据块是否被重复数据删除，检测重复数据块，确定重复数据块中的一个是否已被重复数据删除 当检测到时，当确定一个重复数据块已被重复数据删除时，确定一个重复数据块是主副本，当确定重复数据块没有被复制时，选择一个复制数据块作为主副本 被重复数据删除，并且将所选择的重复数据块的重复数据删除标识符设置为指示重复数据消除，并且确定另一个重复数据块是新的重复数据块，并且设置其他重复数据块的重复数据删除标识符以指示重复数据删除并且指示相应的 指向主副本的指针。

公开(公告)号：US20080180828A1

公开(公告)日：2008-07-31

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： G11B5/35 ,  H02P3/00

CPC分类号： H02P6/24 ,  G11B15/22 ,  G11B15/48

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。