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61. 发明授权

US08107186B2 Determination of timing based servo pattern type 失效
标题翻译：基于定时的伺服模式类型的确定
公开(公告)号：US08107186B2
公开(公告)日：2012-01-31
申请号：US12776944
申请日：2010-05-10
申请人： Nhan Xuan Bui , Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B21/02 , G11B5/584 , G11B5/09
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。

62. 发明授权

US07957088B1 Track compensation and skew compensation for 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的履带补偿和偏斜补偿
公开(公告)号：US07957088B1
公开(公告)日：2011-06-07
申请号：US12716200
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, where each channel receives a signal from a servo reader of a magnetic head. The system also includes logic for estimating a tape velocity, logic for determining a first and second time instant representing a time at which a flag is generated by a related servo channel, logic for determining a first and second correction term representing a time difference between a time at which a peak of a correlation signal and a time at which the flag occur, logic for calculating a skew error estimate based on a reference shift value associated with a servo band pair being spanned by a head module, and logic for applying a control signal including a skew correction that corresponds to the calculated skew error estimate to the skew-following loop. Other systems and methods are disclosed as well.
摘要翻译：根据一个实施例，系统包括多个同步伺服通道，其中每个通道接收来自磁头的伺服读取器的信号。该系统还包括用于估计磁带速度的逻辑，用于确定表示由相关伺服通道产生标志的时间的第一和第二时刻的逻辑，用于确定表示第一和第二校正项的逻辑，相关信号的峰值和标志出现的时间的时间，用于基于与头模块跨越的伺服带对相关联的参考移位值计算偏斜误差估计的逻辑，以及用于施加控制的逻辑信号包括对应于所计算的偏斜误差估计到偏斜跟踪环路的偏斜校正。还公开了其它系统和方法。

63. 发明申请

US20070177292A1 Using at least one servo channel to provide timing recovery and timing information to data channels 失效
标题翻译：使用至少一个伺服通道来向数据通道提供定时恢复和定时信息
公开(公告)号：US20070177292A1
公开(公告)日：2007-08-02
申请号：US11346391
申请日：2006-02-01
申请人： Nhan Bui , Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer , Mark Taylor
发明人： Nhan Bui , Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Glen Jaquette , Jens Jelitto , Sedat Oelcer , Mark Taylor
IPC分类号： G11B5/09
CPC分类号： G11B27/36 , G11B20/10037 , G11B20/10046 , G11B20/10055 , G11B20/10212 , G11B20/10259 , G11B20/1403 , G11B20/1876 , G11B27/10 , G11B2020/10592 , G11B2220/90 , G11B2220/95
摘要： Provided is a read channel, storage drive, and method to process signals read from a storage medium. At least one data channel including an interpolator and equalizer and a servo channel includes an interpolator. A timing recovery function processes a timing error from the interpolator in the servo channel to calculate interpolation timing information used by the interpolator to interpolate a servo channel signal. A path is coupled to the timing recovery function and the interpolator in the at least one data channel to communicate the interpolation timing information to the interpolator in the at least one data channel. The interpolator in the at least one data channel is configured to use the interpolation timing information to interpolate an asynchronous data channel signal.
摘要翻译：提供了一种用于处理从存储介质读取的信号的读通道，存储驱动器和方法。包括内插器和均衡器和伺服信道的至少一个数据信道包括内插器。定时恢复功能处理来自伺服信道中的内插器的定时误差，以计算内插器使用的内插定时信息来内插伺服信道信号。路径耦合到至少一个数据信道中的定时恢复功能和内插器，以将内插定时信息传送到至少一个数据信道中的内插器。所述至少一个数据信道中的内插器被配置为使用内插定时信息来内插异步数据信道信号。

64. 发明申请

US20070171565A1 SYNCHRONOUS SERVO CHANNEL FOR LONGITUDINAL POSITION DETECTION AND POSITION ERROR SIGNAL GENERATION IN TAPE DRIVE SYSTEMS 有权
标题翻译：用于纵向位置检测的同步伺服通道和带状驱动系统中的位置错误信号产生
公开(公告)号：US20070171565A1
公开(公告)日：2007-07-26
申请号：US11340030
申请日：2006-01-26
申请人： Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto
发明人： Giovanni Cherubini , Evangelos Eleftheriou , Robert Hutchins , Jens Jelitto
IPC分类号： G11B5/584 , G11B5/09
CPC分类号： G11B5/584
摘要： A fully synchronous longitudinal position (LPOS) detection system is provided for improving the reliability of servo channels in tape systems. The system is based on the interpolation of the servo channel output signal, which is sampled by an analog-to-digital converter (ADC) at a fixed sampling rate, using a clock at a nominal frequency, so that interpolated signal samples are obtained at a predetermined fixed rate, independent of tape velocity. This predetermined fixed rate is defined in terms of samples per unit of length, as opposed to samples per unit of time, which is the measure of the ADC sampling rate. The resolution with which the servo channel signal is obtained at the interpolator output is thus determined by the step interpolation distance.
摘要翻译：提供了全同步纵向位置（LPOS）检测系统，用于提高磁带系统中伺服通道的可靠性。该系统基于使用以标称频率的时钟由固定采样率的模数转换器（ADC）采样的伺服信道输出信号的内插，从而获得内插信号样本一个预定的固定速率，与磁带速度无关。这个预定的固定速率是根据单位长度的样本来定义的，而不是每单位时间的样本，这是ADC采样率的量度。因此，通过步进插补距离来确定在内插器输出处获得伺服信号信号的分辨率。

65. 发明申请

US20050207234A1 Offset compensation in local-probe data storage devices 失效
标题翻译：本地探头数据存储设备的偏移补偿
公开(公告)号：US20050207234A1
公开(公告)日：2005-09-22
申请号：US11083405
申请日：2005-03-18
申请人： Peter Baechtold , Giovanni Cherubini , Evangelos Eleftherious , Theodor Loeliqer
发明人： Peter Baechtold , Giovanni Cherubini , Evangelos Eleftherious , Theodor Loeliqer
IPC分类号： G11C5/00 , G11C29/48
CPC分类号： G11C29/48 , G11C2029/5602
摘要： Methods and apparatus for compensating offsets in a read signal generated by a sensor associated with a probe of a local-probe data storage device during read-scanning by the probe of bit-positions on a storage surface. An apparatus comprises a generator for generating an offset compensation signal, and a subtraction stage for producing an output signal dependent on the difference between the offset compensation signal and the sensor read signal at each bit-position. In some embodiments, an offset signal generator generates an offset compensation signal dependent upon a predetermined measurement of the sensor read signal. In another aspect the offset signal generator low-pass filters the sensor read signal during read scanning to generate the offset compensation signal. Particular embodiments also include a secondary offset compensation stage for applying additional offset compensation techniques to the output signal from the subtraction stage.
摘要翻译：用于在通过探针在存储表面上的位位置的读取扫描期间补偿由与本地探针数据存储设备的探针相关联的传感器产生的读取信号中的偏移的偏移的装置。一种装置包括用于产生偏移补偿信号的发生器，以及用于产生取决于偏移补偿信号和每个位位置处的传感器读取信号之间的差异的输出信号的减法级。在一些实施例中，偏移信号发生器根据传感器读取信号的预定测量产生偏移补偿信号。在另一方面，偏移信号发生器低通滤波读取扫描期间的传感器读取信号以产生偏移补偿信号。特定实施例还包括用于对来自减法级的输出信号应用附加偏移补偿技术的次偏移补偿级。

66. 发明申请

US20050169063A1 Storage device having flexible architecture and free scalability 失效
标题翻译：存储设备具有灵活的架构和可扩展性
公开(公告)号：US20050169063A1
公开(公告)日：2005-08-04
申请号：US11044346
申请日：2005-01-27
申请人： Giovanni Cherubini , Evangelos Eleftheriou , Theodor Loeliger
发明人： Giovanni Cherubini , Evangelos Eleftheriou , Theodor Loeliger
IPC分类号： G11B9/00 , G11C5/00
CPC分类号： B82Y10/00 , G11B9/14
摘要： A storage device according to the invention has flexible architecture and free scalability. It includes an address input and a data input. It also includes an address and data evaluation unit, which is formed in such a way that it controls a controllable switching means, wherein in operation the address and data evaluation unit depends on the signals of said address and data inputs. Finally, a read/write line for a read/write signal is provided, which can be applied to a local probe data storage unit via the controllable switching means.
摘要翻译：根据本发明的存储设备具有灵活的架构和可扩展性。它包括地址输入和数据输入。它还包括地址和数据评估单元，其以这样一种方式形成，即它控制可控开关装置，其中在操作中地址和数据评估单元取决于所述地址和数据输入的信号。最后，提供用于读/写信号的读/写线，其可以经由可控开关装置应用于本地探头数据存储单元。

67. 发明授权

US06735221B1 Communication network system 有权
标题翻译：通信网络系统
公开(公告)号：US06735221B1
公开(公告)日：2004-05-11
申请号：US09478563
申请日：2000-01-06
申请人： Giovanni Cherubini
发明人： Giovanni Cherubini
IPC分类号： H04J100
CPC分类号： H04N21/6118 , H04J3/0682 , H04J7/00 , H04L1/08 , H04L27/2631 , H04L27/2652 , H04N7/17309 , H04N21/6168
摘要： A digital communications network system for multiple access has a head-end node and at least one station node at at least one other end node; the system comprises a head-end controller (3) capable of transmitting data and medium-access control information to at least one station (6), preferably a plurality of station means, over a set of downstream channels within a first frequency range, and receiving information from the station or stations over an upstream channel within a second frequency range; the upstream channel comprises at least one upstream subchannel, preferably a plurality of upstream subchannels; the system further comprises at least one connection, preferably a plurality of connections, for connecting the head-end controller with the station or stations; each station includes means for receiving data and medium-access control information from the head-end controller; further means are provided for sending a data stream at a first signal level over at least one upstream subchannel, preferably a plurality of upstream subchannels; the station further includes means for sending at least one ranging request message to the head-end controller over at least one upstream subchannel; the ranging request message of messages has/have a signal level that is lower than the first signal level of the data stream; the ranging request message or messages is/are being transmitted using repetition coding enabling the head-end controller to detect the ranging request message or messages having a signal level lower than the first signal level of the data stream; the repetition coding is selected for enhancing the level of spectral containment of the ranging request message(s) and for reducing interference with transmission over adjacent upstream subchannels.
摘要翻译：用于多路访问的数字通信网络系统具有头端节点和至少一个其他端节点处的至少一个站节点; 该系统包括能够通过一组第一频率范围内的一组下游信道向至少一个站（6）（优选多个站装置）发送数据和媒体访问控制信息的前端控制器（3），以及在第二频率范围内通过上游信道从站或站接收信息; 所述上游信道包括至少一个上行子信道，优选地多个上游子信道; 系统还包括用于将头端控制器与站或站连接的至少一个连接，优选地多个连接; 每个站包括用于从头端控制器接收数据和媒体访问控制信息的装置; 提供了进一步的装置，用于通过至少一个上游子信道，优选地多个上游子信道，以第一信号电平发送数据流; 该站还包括用于通过至少一个上游子信道向头端控制器发送至少一个测距请求消息的装置; 消息的测距请求消息具有/具有低于数据流的第一信号电平的信号电平; 使用重复编码来发送测距请求消息或消息，使得头端控制器能够检测测距请求消息或具有低于数据流的第一信号电平的信号电平的消息; 选择重复编码以增强测距请求消息的频谱容纳级别，并减少对相邻上游子信道上的传输的干扰。

68. 发明授权

US09251828B2 Servo control 有权
标题翻译：伺服控制
公开(公告)号：US09251828B2
公开(公告)日：2016-02-02
申请号：US14241931
申请日：2012-07-04
申请人： Giovanni Cherubini , Jens Jelitto , Mark A. Lantz
发明人： Giovanni Cherubini , Jens Jelitto , Mark A. Lantz
IPC分类号： G11B5/588 , G11B5/008 , G11B5/48 , G11B5/584
CPC分类号： G11B5/588 , G11B5/008 , G11B5/00847 , G11B5/4893 , G11B5/584
摘要： In a method for operating a tape storage system, while a tape is being moved in a tape drive across a tape head for one or more of reading and writing user data from/to a data track of the tape, a read element of the tape head, which read element is assigned to the data track, is moved transverse to a moving direction of the tape for a distance of more than a width of the data track. A transverse position of one or more of the following elements is subject to a signal supplied by the read element during its transverse move: The read element; another read element assigned to the data track; and a write element assigned to the data track.
摘要翻译：在一种用于操作磁带存储系统的方法中，当磁带在磁带驱动器中跨磁带头移动以用于从/从磁带的数据轨道读取和写入用户数据的一个或多个时，磁带的读取元件将读取元素分配给数据轨道的头部横向于磁带的移动方向移动超过数据轨道宽度的距离。以下元件中的一个或多个的横向位置在读取元件的横向移动期间经受提供的信号：读取元件; 分配给数据轨道的另一个读取元素; 以及分配给数据轨道的写入元件。

69. 发明申请

US20120297123A1 WEAR LEVELING 有权
标题翻译：耐磨
公开(公告)号：US20120297123A1
公开(公告)日：2012-11-22
申请号：US13469148
申请日：2012-05-11
申请人： Giovanni Cherubini , Ilias Iliadis
发明人： Giovanni Cherubini , Ilias Iliadis
IPC分类号： G06F12/00
CPC分类号： G06F12/0246 , G06F2212/7211
摘要： A method for operating a computer memory. The memory is organized to store data in units of such memory. For each unit of a set of units a wear level of the unit is determined. A maximum wear level among the wear levels is determined. A suggestion of a subset of one or more units for being selected for data erasure is received and at least one unit in the subset is identified for subsequent data erasure, a wear level (c(i)) of which units (i) is less than the maximum wear level (c_max).
摘要翻译：一种用于操作计算机存储器的方法。存储器被组织以以这种存储器的单元存储数据。对于一组单元的每个单元，确定单元的磨损水平。确定磨损水平之间的最大磨损水平。接收用于被选择用于数据擦除的一个或多个单元的子集的建议，并且识别子集中的至少一个单元用于随后的数据擦除，其中单元（i）的磨损水平（c（i））较小超过最大磨损水平（c_max）。

70. 发明授权

US08274752B2 Servomechanism with adjustable predictor filter 有权
标题翻译：具有可调节预测滤波器的伺服机构
公开(公告)号：US08274752B2
公开(公告)日：2012-09-25
申请号：US13332996
申请日：2011-12-21
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.
摘要翻译：描述了一种数字控制系统，特别是具有跟踪伺服机构与具有预测器（此处也称为预测器滤波器）的磁带驱动系统。在某些实施例中，伺服机构包括致动器，伺服通道和耦合到伺服通道的预测器。预测器从伺服通道接收横向位置估计信号，并且确定修正的横向位置估计信号，该修正的横向位置估计信号通过例如由伺服通道引入的带速度相关延迟引入修改的横向位置估计信号和一个实际的横向位置。修改的横向位置估计可以用于修改发送到致动器的控制信号。

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