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71. 发明申请

US20120268842A1 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：US20120268842A1
公开(公告)日：2012-10-25
申请号：US13517434
申请日：2010-12-17
申请人： Giovanni Cherubini , Jens Jelitto , Angeliki Pantazi
发明人： Giovanni Cherubini , Jens Jelitto , Angeliki Pantazi
IPC分类号： G11B20/20 , G11B5/008
CPC分类号： G11B5/56
摘要： Method for operating a storage device with a tape and a head which is operable to read and/or write data from and respectively to the tape. The tape is moveable in a predetermined longitudinal direction. At least two consecutive current lateral tape positions of the tape with respect to a predetermined reference point are determined at a predetermined longitudinal capture position. A tape skew of the tape is determined dependent on the at least two determined lateral positions. The tape skew represents an angle between a current tape motion direction of the tape and the longitudinal direction. A skew control signal is determined dependent on the determined tape skew. A rotational head position of the head is controlled dependent on the skew control signal to align the head to the current tape motion direction in such a way that the head is operable to read and/or write data.
摘要翻译：用于操作具有磁带和磁头的存储设备的方法，其可操作以从磁带读取和/或写入数据。带可以在预定的纵向移动。在预定的纵向捕获位置处确定带相对于预定参考点的至少两个连续的当前横向带位置。取决于至少两个确定的横向位置来确定带的带偏移。带偏斜表示带的当前带运动方向和纵向方向之间的角度。取决于确定的带偏斜来确定偏斜控制信号。根据歪斜控制信号控制头部的旋转头部位置，以使头部与当前的带运动方向对准，使得头部可操作以读取和/或写入数据。

72. 发明申请

US20120212853A1 Method and Apparatus to Position a Head Module Comprising Servo Elements and 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：US20120212853A1
公开(公告)日：2012-08-23
申请号：US13460614
申请日：2012-04-30
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： G11B21/02
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。

73. 发明授权

US08094407B2 Servomechanism with adjustable predictor filter 有权
公开(公告)号：US08094407B2
公开(公告)日：2012-01-10
申请号：US12543339
申请日：2009-08-18
申请人： Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
发明人： Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B15/46
CPC分类号： G11B5/584
摘要： A digital control system, and in particular a tape drive system having a track-following servomechanism with a predictor (also referred to herein as a predictor filter), is described. In certain embodiments, the servomechanism includes an actuator, a servo channel, and a predictor coupled to the servo channel. The predictor receives from the servo channel a lateral position estimate signal and determines a modified lateral position estimate signal that reduces a difference, introduced by a tape velocity-dependent delay, e.g., introduced by the servo channel, between the modified lateral position estimate signal and an actual lateral position. The modified lateral position estimate may be used to modify a control signal sent to the actuator.

74. 发明授权

US08054568B2 Synchronization of symmetric timing based servo bursts 有权
标题翻译：基于对称定时的伺服脉冲串同步
公开(公告)号：US08054568B2
公开(公告)日：2011-11-08
申请号：US12712039
申请日：2010-02-24
申请人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Mark Alfred Lantz
发明人： Giovanni Cherubini , Robert Allen Hutchins , Jens Jelitto , Mark Alfred Lantz
IPC分类号： G11B5/09 , G11B5/584
CPC分类号： G11B5/584 , G11B5/09
摘要： Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected bits. For example, servo frames are arranged with four servo bursts with an equal number of servo stripes in each burst, the servo frames comprising two symmetric sub-frames, each sub-frame comprising two bursts of servo stripes that are parallel to each other within a burst, and the bursts are non-parallel with respect to each other; each servo burst is arranged to comprise at least one reference servo stripe; and each servo burst is arranged to comprise at least one shifted servo stripe, wherein the shift is in the same longitudinal direction with respect to at least one reference servo stripe for each burst of a frame and the opposite longitudinal direction for bursts of sequentially adjacent frames.
摘要翻译：伺服帧的基于时序的伺服脉冲串通过移位所选位来同步，其中帧被布置为在帧的每个突发中具有相同数目的伺服条带对称。例如，伺服帧被布置成具有在每个突发中具有相等数量的伺服条带的四个伺服脉冲串，伺服帧包括两个对称子帧，每个子帧包括在一个内部的彼此平行的两个脉冲串的伺服条带突发，并且突发是相互不平行的; 每个伺服脉冲串被布置成包括至少一个参考伺服条纹; 并且每个伺服脉冲串被布置成包括至少一个移位的伺服条带，其中相对于帧的每个脉冲串相对于至少一个参考伺服条带的移位在相同的纵向方向上，并且相反的纵向方向用于顺序相邻帧的突发。

75. 发明申请

US20110205657A1 SYNCHRONIZATION OF SYMMETRIC TIMING BASED SERVO BURSTS 有权
标题翻译：基于对称时序的伺服脉冲同步
公开(公告)号：US20110205657A1
公开(公告)日：2011-08-25
申请号：US12712039
申请日：2010-02-24
申请人： GIOVANNI CHERUBINI , ROBERT A. HUTCHINS , JENS JELITTO , MARK A. LANTZ
发明人： GIOVANNI CHERUBINI , ROBERT A. HUTCHINS , JENS JELITTO , MARK A. LANTZ
IPC分类号： G11B5/09 , G11B5/584
CPC分类号： G11B5/584 , G11B5/09
摘要： Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected bits. For example, servo frames are arranged with four servo bursts with an equal number of servo stripes in each burst, the servo frames comprising two symmetric sub-frames, each sub-frame comprising two bursts of servo stripes that are parallel to each other within a burst, and the bursts are non-parallel with respect to each other; each servo burst is arranged to comprise at least one reference servo stripe; and each servo burst is arranged to comprise at least one shifted servo stripe, wherein the shift is in the same longitudinal direction with respect to at least one reference servo stripe for each burst of a frame and the opposite longitudinal direction for bursts of sequentially adjacent frames.
摘要翻译：伺服帧的基于时序的伺服脉冲串通过移位所选位来同步，其中帧被布置为在帧的每个突发中具有相同数量的伺服条带对称。例如，伺服帧被布置成具有在每个突发中具有相等数量的伺服条带的四个伺服脉冲串，伺服帧包括两个对称子帧，每个子帧包括在一个内部的彼此平行的两个脉冲串的伺服条带突发，并且突发是相互不平行的; 每个伺服脉冲串被布置成包括至少一个参考伺服条纹; 并且每个伺服脉冲串被布置成包括至少一个移位的伺服条带，其中相对于帧的每个脉冲串相对于至少一个参考伺服条带的移位在相同的纵向方向上，并且相反的纵向方向用于顺序相邻帧的突发。

76. 发明授权

US07961424B2 Multilevel pulse position modulation for efficient encoding of information into servo patterns 有权
标题翻译：多级脉冲位置调制，用于将信息有效地编码成伺服模式
公开(公告)号：US07961424B2
公开(公告)日：2011-06-14
申请号：US12609053
申请日：2009-10-30
申请人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins , Mark A. Lantz
发明人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins , Mark A. Lantz
IPC分类号： G11B5/55
CPC分类号： G11B20/1201 , G11B5/584 , G11B20/10009 , G11B2020/1281 , G11B2220/90
摘要： A storage medium on which servo patterns are encoded to provide lateral and longitudinal position (LPOS) information is provided. Each of the servo patterns includes a servo frame, including first through fourth bursts, which are each independently modulated with multi-level pulse position modulation (PPM) to encode at least one independent bit per burst.
摘要翻译：提供其上编码伺服图案以提供横向和纵向位置（LPOS）信息的存储介质。每个伺服模式包括伺服帧，包括第一至第四脉冲串，每个脉冲串通过多电平脉冲位置调制（PPM）独立调制，以对每个脉冲串至少一个独立位进行编码。

77. 发明授权

US07961421B1 Servo band identification and initial skew estimation in drives having flangeless rollers and systems thereof 有权
标题翻译：具有无法兰滚子及其系统的驱动器中的伺服带识别和初始偏移估计
公开(公告)号：US07961421B1
公开(公告)日：2011-06-14
申请号：US12716192
申请日：2010-03-02
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： G11B5/58
CPC分类号： G11B5/584
摘要： According to one embodiment, a system includes a plurality of synchronous servo channels with each synchronous servo channel including a servo reader included in a magnetic head, and logic for applying a plurality of first control signals to a skew-following loop. Each first control signal includes a reference shift value, each reference shift value corresponds to one of a number of hypotheses, and each hypothesis corresponds to one servo band set. The system also includes logic for computing an average difference between lateral position estimates from the plurality of synchronous servo channels, logic for selecting a hypothesis from the number of hypotheses that corresponds to a maximum of the computed average difference, and logic for applying a second control signal to the skew-following loop. The second control signal includes a reference shift value that corresponds to the selected hypothesis. Other systems and methods are also described.
摘要翻译：根据一个实施例，一种系统包括多个同步伺服通道，每个同步伺服通道包括包含在磁头中的伺服读取器，以及用于将多个第一控制信号施加到偏斜跟随环路的逻辑。每个第一控制信号包括参考移位值，每个参考移位值对应于多个假设中的一个，并且每个假设对应于一个伺服带组。该系统还包括用于计算来自多个同步伺服信道的横向位置估计之间的平均差异的逻辑，用于从对应于所计算的平均差的最大值的假设的数量中选择假设的逻辑，以及用于应用第二控制信号到偏斜跟随环路。第二控制信号包括对应于所选假设的参考移位值。还描述了其它系统和方法。

78. 发明申请

US20110013312A1 METHOD AND APPARATUS TO POSITION A HEAD MODULE COMPRISING SERVO ELEMENTS AND A PLURALITY OF DATA ELEMENTS 有权
标题翻译：包含服务元素和数据元素多样性的头模块的位置的方法和装置
公开(公告)号：US20110013312A1
公开(公告)日：2011-01-20
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： G11B5/596
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。

79. 发明申请

US20110007418A1 COMBINING INFORMATION FROM PARALLEL SERVO CHANNELS 失效
标题翻译：从并行伺服通道组合信息
公开(公告)号：US20110007418A1
公开(公告)日：2011-01-13
申请号：US12878722
申请日：2010-09-09
申请人： Nhan Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Bui , Giovanni Cherubini , Roy D. Cideciyan , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted parameter estimate and for a measure of the channel reliability. A weight computation module provides first and second weight signals using the measures of channel reliability from the servo channels. An offset computation module provides first and second offset terms which are summed with the unweighted parameter estimates. Multiplying nodes receive the unweighted parameter estimates and the weight signals and outputs offset weighted parameter estimates. A summing node receives the offset weighted parameter estimates and outputs a combined offset weighted parameter estimate to a servomechanism.
摘要翻译：加权组合方案利用来自并行操作的两个伺服通道的信息。基于定时的伺服模块包括分别耦合的两个同步伺服通道，以接收从数据磁带读取的两个数字伺服信号。两个通道具有未加权参数估计的输出和通道可靠性的度量。权重计算模块使用来自伺服信道的信道可靠性的测量来提供第一和第二加权信号。偏移计算模块提供与未加权参数估计相加的第一和第二偏移项。乘法节点接收未加权的参数估计和权重信号并输出偏移加权参数估计。求和节点接收偏移加权参数估计，并将组合的偏移加权参数估计输出到伺服机构。

80. 发明申请

US20090174964A1 SERVO CHANNEL FOR TAPE DRIVE SYSTEMS 有权
标题翻译：用于磁带驱动系统的伺服通道
公开(公告)号：US20090174964A1
公开(公告)日：2009-07-09
申请号：US11969184
申请日：2008-01-03
申请人： Giovanni Cherubini , Roy Daron Cideciyan , Evangelos S. Eleftheriou , Robert Allen Hutchins , Jens Jelitto
发明人： Giovanni Cherubini , Roy Daron Cideciyan , Evangelos S. Eleftheriou , Robert Allen Hutchins , Jens Jelitto
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： Provided are techniques for synchronous servo channel for a data tape drive. A servo reader is configured to read servo bursts from a data tape. An anti-aliasing filter is operable to output a bandlimited signal and is coupled to receive a servo channel signal comprising servo bursts from the servo reader. An analog-to-digital converter (ADC) is operable to output signal samples and is coupled to receive the bandlimited signal from the anti-aliasing filter. An interpolation and control unit is operable to output interpolated signal samples and control signals, has a first input coupled to receive the signal samples from the ADC, and has a second input coupled to receive the correlation signal samples from the dibit correlator. A dibit correlator is operable to output correlation signal samples and is coupled to receive the interpolated signal samples and control signals from the interpolation and control unit.
摘要翻译：提供了用于数据磁带驱动器的同步伺服通道的技术。伺服读取器被配置为从数据磁带读取伺服脉冲串。抗混叠滤波器可操作以输出带限信号，并且耦合以接收包括来自伺服读取器的伺服脉冲串的伺服信道信号。模数转换器（ADC）可操作以输出信号采样并被耦合以从抗混叠滤波器接收带限信号。内插和控制单元可操作以输出内插信号样本和控制信号，具有耦合以从ADC接收信号样本的第一输入，并具有耦合以从双位相关器接收相关信号样本的第二输入。双向相关器可操作以输出相关信号样本，并被耦合以从内插和控制单元接收内插的信号样本和控制信号。

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