专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US08760795B2 Linear recording tape with a reduced servo band width, and system and method for using the same 失效
标题翻译：具有减小的伺服带宽的线性记录带，以及使用该记录带的系统和方法
公开(公告)号：US08760795B2
公开(公告)日：2014-06-24
申请号：US13080542
申请日：2011-04-05
申请人： Giovanni Cherubini , Jens Jelitto , Mark A. Lantz
发明人： Giovanni Cherubini , Jens Jelitto , Mark A. Lantz
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B20/1201
摘要： In one embodiment, a linear magnetic recording tape includes at least one servo band having a servo pattern readable by a servo reader of a magnetic head for positioning thereof, wherein the servo pattern is adapted to substantially fill a width b of the servo band, the servo band width h is less than or equal to about 1.2 B/N, N is an integer greater than or equal to 2, and B corresponds to a distance between data read/write transducers of the magnetic head in a direction transverse to a longitudinal length of the tape. In another embodiment, a method includes providing the linear magnetic recording tape, formatting the tape, and positioning the magnetic head within a first lateral tape region. Other linear magnetic tapes, systems, and methods are described according to other embodiments.
摘要翻译：在一个实施例中，线性磁记录带包括至少一个具有由磁头的伺服读取器可读取的伺服模式的伺服带，用于定位它，其中伺服模式适于基本上填充伺服带的宽度b，伺服带宽h小于或等于约1.2B / N，N是大于或等于2的整数，B对应于磁头的数据读/写换能器在横向于纵向的方向上的距离磁带长度。在另一个实施例中，一种方法包括提供线性磁记录带，格式化带，以及将磁头定位在第一侧带区域内。根据其他实施例描述其它线性磁带，系统和方法。

52. 发明申请

US20130335857A1 VIBRATION DISTURBANCE ESTIMATION AND CONTROL 有权
标题翻译：振动扰动估计与控制
公开(公告)号：US20130335857A1
公开(公告)日：2013-12-19
申请号：US13526529
申请日：2012-06-19
申请人： Nhan X. Bui , Jens Jelitto , Angeliki Pantazi
发明人： Nhan X. Bui , Jens Jelitto , Angeliki Pantazi
IPC分类号： G11B5/584 , G11B5/56
CPC分类号： G11B5/584
摘要： A tape drive configured to accurately position a head actuator in the presence of physical disturbances is disclosed. The tape drive includes a track-follow controller to position a head actuator over data tracks on magnetic tape. The tape drive further includes a disturbance observer configured to estimate a vibration disturbance and output a compensation signal to assist the track-follow controller to accurately position the head actuator over the data tracks in the presence of vibration. When estimating the vibration disturbance, the disturbance observer takes into account vibration frequency characteristics, such as frequency characteristics derived from a vibration specification associated with the tape drive, or frequency characteristics derived from known vibration disturbances experienced by the tape drive. A corresponding method is also disclosed.
摘要翻译：公开了一种配置成在存在物理扰动的情况下精确地定位头致动器的磁带驱动器。磁带驱动器包括轨道跟随控制器，用于将磁头执行器定位在磁带上的数据轨道上。磁带驱动器还包括被配置为估计振动干扰并输出补偿信号的扰动观察器，以帮助跟踪跟踪控制器在存在振动的情况下将头致动器精确地定位在数据轨道上。当估计振动扰动时，扰动观测器考虑振动频率特性，例如从与磁带驱动相关联的振动规范得到的频率特性，或由磁带机所经历的已知振动干扰导出的频率特性。还公开了相应的方法。

53. 发明授权

US08576510B2 Robust metric computation of longitudinal position (LPOS) data symbol detection 有权
标题翻译：纵向位置（LPOS）数据符号检测的鲁棒度量计算
公开(公告)号：US08576510B2
公开(公告)日：2013-11-05
申请号：US13267837
申请日：2011-10-06
申请人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins
发明人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins
IPC分类号： G11B5/584
CPC分类号： G11B20/1202 , G11B5/584 , G11B20/10231 , G11B20/10287 , G11B20/1201 , G11B2020/1281 , G11B2220/90 , G11B2220/93 , G11B2220/956
摘要： In one embodiment, a tape drive system includes a magnetic head having a servo sensor for sensing a defined servo track of a magnetic tape and configured to read servo pulses from servo bursts of the servo track while the magnetic tape is moving past the magnetic head with the servo bursts representing an encoded data symbol, an analog-to-digital converter configured to provide a sequence of samples of the readback servo signal, a digital correlator configured to compute a correlation signal between the sequence and a reference waveform, a timing reference module configured to provide a reference timing model having interpolation instants to the digital correlator, a correlation interpolator configured to interpolate the correlation signal at the interpolation instants and compute a longitudinal position (LPOS) detection metric, and an LPOS detector configured to decode the encoded data symbol of the servo bursts using the computed LPOS detection metric.
摘要翻译：在一个实施例中，磁带驱动系统包括具有伺服传感器的磁头，该伺服传感器用于感测磁带的定义的伺服磁道并且被配置为在磁带通过磁头移动经过磁头的同时从伺服磁道的伺服脉冲串读取伺服脉冲，表示编码数据符号的伺服突发，被配置为提供所述回读伺服信号的采样序列的模数转换器，被配置为计算所述序列与参考波形之间的相关信号的数字相关器，定时参考模块被配置为向所述数字相关器提供具有内插时刻的参考定时模型，相关内插器，被配置为在所述内插时刻内插所述相关信号并计算纵向位置（LPOS）检测度量，以及LPOS检测器，被配置为对所述编码数据符号的伺服脉冲串使用计算的LPOS检测度量。

54. 发明授权

US08422163B2 Determining a reference waveform used by a correlator in a servo channel 失效
标题翻译：确定相关器在伺服通道中使用的参考波形
公开(公告)号：US08422163B2
公开(公告)日：2013-04-16
申请号：US13456895
申请日：2012-04-26
申请人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto
发明人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto
IPC分类号： G11B5/584
CPC分类号： G11B20/1201 , G11B5/00821 , G11B5/584 , G11B20/10037 , G11B2020/1281 , G11B2020/1484 , G11B2220/913 , G11B2220/953 , G11B2220/956
摘要： Provided are a method, servo channel, and tape drive for determining a reference waveform used by a correlator in a servo channel. Sequences of servo signal samples are provided from read servo signals read from a servo pattern on a recording medium. A determination is made of a reference waveform based on the sequences of servo signal samples and the reference waveform is forwarded. Interpolated servo signals are generated. The interpolated servo signal samples and the forwarded reference waveform are received to generate correlation output samples. Position and velocity information are calculated from the correlation output samples.
摘要翻译：提供了一种用于确定由伺服通道中的相关器使用的参考波形的方法，伺服通道和磁带驱动器。伺服信号样本的序列由从记录介质上的伺服模式读取的读取伺服信号提供。基于伺服信号样本的序列确定参考波形，并且转发参考波形。产生内插伺服信号。接收内插伺服信号采样和转发的参考波形以产生相关输出采样。从相关输出样本计算位置和速度信息。

55. 发明授权

US08331055B2 Control method and apparatus for a dual-channel weighted LPOS combining scheme 有权
标题翻译：双通道加权LPOS组合方案的控制方法和装置
公开(公告)号：US08331055B2
公开(公告)日：2012-12-11
申请号：US12500490
申请日：2009-07-09
申请人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Melanie Jean Sandberg
发明人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Melanie Jean Sandberg
IPC分类号： G11B21/02
CPC分类号： G11B5/584 , G11B5/29
摘要： A method for monitoring a plurality of servo channels, providing a finite state machine (“FSM”) comprising a single servo channel mode and a combined servo channel mode, and moving a sequential information storage medium comprising a plurality of servo bands across a read/write head comprising a corresponding plurality of servo sensors. The method further asserts an acquisition flag by a servo channel if that servo channel is tracking a servo pattern, and asserts a bit flag by a servo channel if a new LPOS bit is decoded. If at least one acquisition flag is asserted, the method determines if a bit flag is asserted by a servo channel associated with said asserted acquisition flag, and if an acquisition flag and a bit flag are asserted by a servo channel, the method determines a relative positioning of each servo sensor with respect to an associated servo pattern.
摘要翻译：一种用于监视多个伺服信道的方法，提供包括单个伺服信道模式和组合伺服信道模式的有限状态机（FSM），以及跨越读/写头移动包括多个伺服带的顺序信息存储介质包括相应的多个伺服传感器。如果伺服信道正在跟踪伺服模式，则该方法还通过伺服信道断言采集标志，如果解码了新的LPOS位，则通过伺服信道断言位标志。如果至少一个采集标志被断言，则该方法确定与所述断言获取标志相关联的伺服信道是否标志位标志，并且如果通过伺服信道确定获取标志和位标志，则该方法确定相对每个伺服传感器相对于相关伺服模式的定位。

56. 发明申请

US20120293889A1 METHOD AND APPARATUS FOR OPERATING A STORAGE DEVICE 失效
标题翻译：用于操作存储设备的方法和装置
公开(公告)号：US20120293889A1
公开(公告)日：2012-11-22
申请号：US13575508
申请日：2011-01-27
申请人： Evangelos S. Eleftheriou , Walter Haeberle , Jens Jelitto , Angeliki Pantazi
发明人： Evangelos S. Eleftheriou , Walter Haeberle , Jens Jelitto , Angeliki Pantazi
IPC分类号： G11B21/02 , G11B5/008
CPC分类号： G11B5/584
摘要： Method for operating a storage device with a tape and a head wherein the head comprises a first and a second read element. Each read element is operable to detect servo-pattern of a particular servo band. The first and the second read element are arranged such that the tape at first passes one of both read elements and subsequently passes the other of both read elements when the tape moves in a predetermined longitudinal direction. A tape transport direction of the tape along the longitudinal direction is determined. The first read element is selected dependent on the determined tape transport direction, when the determined tape transport direction represents a direction where the tape at first passes the first read element and subsequently the second read element. Otherwise the second read element is selected. A position error signal is determined dependent on the selected read element.
摘要翻译：用于操作具有带和头的存储设备的方法，其中所述头部包括第一和第二读取元件。每个读取元件可操作以检测特定伺服带的伺服图案。第一和第二读取元件被布置成使得当磁带沿预定的纵向方向移动时，磁带首先通过两个读取元件中的一个并随后通过两个读取元件中的另一个元件。确定带沿着纵向的带传送方向。当所确定的磁带传送方向表示磁带首先通过第一读取单元的方向和随后的第二读取单元的方向时，第一读取单元根据确定的磁带传送方向来选择。否则选择第二个读取元素。取决于所选择的读取元素来确定位置误差信号。

57. 发明授权

US08169736B2 Method and apparatus to position a head module comprising servo elements and a plurality of data elements 有权
标题翻译：用于定位包括伺服元件和多个数据元素的头模块的方法和装置
公开(公告)号：US08169736B2
公开(公告)日：2012-05-01
申请号：US12505435
申请日：2009-07-17
申请人： Nhan Xuan Bui , Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B21/02 , G11B15/46
CPC分类号： G11B5/5552
摘要： A method to position a head module, where the head module comprises at least one servo element and a plurality of data elements, where the servo element and each of the plurality of data elements can detect a servo signal, wherein the method includes moving a sequential information storage medium having a servo band encoded therein across the head module and detecting the servo band using the at least one servo element or any one of the plurality of data elements.
摘要翻译：一种定位头模块的方法，其中头模块包括至少一个伺服元件和多个数据元件，其中伺服元件和多个数据元素中的每一个可以检测伺服信号，其中该方法包括移动顺序信息存储介质，其中跨越所述头模块编码了伺服频带，并且使用所述至少一个伺服单元或所述多个数据单元中的任何一个来检测所述伺服频带。

58. 发明申请

US20110273793A1 DETERMINATION OF TIMING BASED SERVO PATTERN TYPE 失效
标题翻译：基于时序的伺服模式的确定
公开(公告)号：US20110273793A1
公开(公告)日：2011-11-10
申请号：US12776944
申请日：2010-05-10
申请人： NHAN X. BUI , GIOVANNI CHERUBINI , JENS JELITTO , KAZUHIRO TSURUTA
发明人： NHAN X. BUI , GIOVANNI CHERUBINI , JENS JELITTO , KAZUHIRO TSURUTA
IPC分类号： G11B27/36
CPC分类号： G11B5/00878 , G11B5/584 , G11B20/1403 , G11B2020/1484 , G11B2220/90
摘要： In a magnetic tape drive having a servo read system with at least one read head, the system configured to read servo pattern information as a magnetic tape is moved longitudinally with respect to the at least one read head, the servo pattern comprising a timing-based servo pattern comprising an even number of bursts of sloped magnetic stripes, adjacent bursts oppositely sloped, alternate bursts identically sloped, an embodiment of a method determines the time between detection from the read head of a same stripe of alternate bursts of a pattern; determines the time between detection from the read head of stripes of a burst of a pattern; and determines a ratio of the determined times. The ratio is compared to a threshold, wherein the threshold comprises a differentiation between different servo pattern types.
摘要翻译：在具有至少一个读取头的伺服读取系统的磁带驱动器中，配置为读取作为磁带的伺服模式信息的系统相对于至少一个读取头纵向移动，伺服模式包括基于时序的伺服模式包括偶数数量的倾斜磁条脉冲串，相邻突发脉冲相对倾斜，相同倾斜的交替脉冲串，方法的实施例确定从图形的相同条纹的同一条带的读出头检测之间的时间; 确定从图案的突发的条带的读取头检测之间的时间; 并确定所确定的时间的比率。该比率与阈值进行比较，其中阈值包括不同伺服模式类型之间的区分。

59. 发明授权

US07864487B2 Head design for writing servo patterns on magnetic tape 有权
标题翻译：在磁带上写入伺服模式的头设计
公开(公告)号：US07864487B2
公开(公告)日：2011-01-04
申请号：US12118251
申请日：2008-05-09
申请人： Giovanni Cherubini , Roy D. Cideciyan , Evangelos S. Eleftheriou , Jens Jelitto , Mark A. Lantz
发明人： Giovanni Cherubini , Roy D. Cideciyan , Evangelos S. Eleftheriou , Jens Jelitto , Mark A. Lantz
IPC分类号： G11B5/584 , G11B5/265
CPC分类号： G11B5/584
摘要： A servo write head is provided and is configured to simultaneously write at least two servo patterns in respective servo bands on linear magnetic tape. Centerlines of the servo patterns are substantially uniformly spaced in the lateral direction. In addition, the servo patterns of all adjacent respective servo bands are displaced relative to each other in a longitudinal direction by an amount that is related to a length of a servo frame and a type of the servo patterns.
摘要翻译：提供了伺服写入头，并被配置为在线性磁带上的相应伺服带中同时写入至少两个伺服模式。伺服图案的中心线在横向方向上基本上均匀间隔开。此外，所有相邻的各个伺服带的伺服模式在纵向方向上相对于伺服帧的长度和伺服模式的类型相关的量而移位。

60. 发明授权

US07821733B2 Using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal 失效
标题翻译：使用测量误差来确定提供给均衡器的系数以用于均衡输入信号
公开(公告)号：US07821733B2
公开(公告)日：2010-10-26
申请号：US12189096
申请日：2008-08-08
申请人： Evangelos S. Eleftheriou , Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
发明人： Evangelos S. Eleftheriou , Robert Allen Hutchins , Jens Jelitto , Sedat Oelcer
IPC分类号： G11B5/35
CPC分类号： G11B5/09 , G11B5/00817 , G11B20/10009 , G11B20/10046
摘要： Provided are a read channel, storage drive and method using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal. A read channel is incorporated in a storage device to process signals read from a storage medium. An equalizer uses coefficients to equalize input read signals to produce equalizer output signals. A detector processes adjusted equalizer output signals to determine output values comprising data represented by the input read signals. An equalizer adaptor is enabled to provide a reference measured error and coefficients used to produce the adjusted equalizer signals that are associated with the reference measured error. The equalizer adaptor computes new equalizer coefficients to use to equalize input read signals that result in a new measured error from the detector and computes a new measured error for the new equalizer coefficients. The equalizer adaptor determines whether the new measured error is degraded with respect to the reference measured error and saves the new equalizer coefficients and the new measured error in response to determining that the new measured error is not degraded with respect to the reference measured error. The equalizer adaptor provides the equalizer coefficients associated with the reference measured error to the equalizer to use to equalize input read signals in response to determining that the new measured error is degraded with respect to the reference measured error.
摘要翻译：提供了读通道，存储驱动器和使用测量误差的方法来确定提供给均衡器的系数以用于均衡输入信号。读取通道并入存储装置中以处理从存储介质读取的信号。均衡器使用系数来均衡输入读取信号以产生均衡器输出信号。检测器处理经调整的均衡器输出信号以确定包括由输入读信号表示的数据的输出值。启用均衡器适配器以提供参考测量误差和用于产生与参考测量误差相关联的经调整的均衡器信号的系数。均衡器适配器计算新的均衡器系数以用于均衡来自检测器的导致新的测量误差的输入读取信号，并且计算新的均衡器系数的新的测量误差。均衡器适配器确定新的测量误差是否相对于参考测量误差降级，并且响应于确定新的测量误差相对于参考测量误差而不降级而保存新的均衡器系数和新的测量误差。均衡器适配器将与参考测量误差相关联的均衡器系数提供给均衡器以用于响应于确定新的测量误差相对于参考测量误差而降级来均衡输入读取信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式