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公开(公告)号：US20110216434A1
公开(公告)日：2011-09-08
申请号：US12716037
申请日：2010-03-02
IPC分类号： G11B19/02
CPC分类号： G11B5/584
摘要： An alternative time interval is taken of a timing based servo band to determine lateral position of a servo read head. The servo band is arranged in a sequence bursts with non-parallel servo stripes in sequentially adjacent sub-frames of a linear tape. The timing intervals comprise at least a first time interval (A) between a first pair of non-parallel servo stripes of a sub-frame; and an alternative time interval (C) between a pair of non-parallel servo stripes intermediate the first time intervals (A), the alternative interval servo stripes of sequentially adjacent sub-frames comprising a second servo stripe of the first pair, and a first servo stripe of a sequentially succeeding first pair. Position signals are ratios involving the first and second time intervals.
摘要翻译： 采用基于定时的伺服频带的替代时间间隔来确定伺服读取头的横向位置。 伺服带在线性带的顺序相邻的子帧中以非平行的伺服条形序列突发。 定时间隔包括子帧的第一对非平行伺服条带之间的至少第一时间间隔（A）; 以及在第一时间间隔（A）之间的一对非平行伺服条之间的替代时间间隔（C），包括第一对的第二伺服条的顺序相邻子帧的替代间隔伺服条，以及第一对 顺序后续的第一对的伺服条纹。 位置信号是涉及第一和第二时间间隔的比率。
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公开(公告)号：US20110273793A1
公开(公告)日：2011-11-10
申请号：US12776944
申请日：2010-05-10
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。
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3.发明申请公开(公告)号：US20090213489A1
公开(公告)日：2009-08-27
申请号：US12036905
申请日：2008-02-25
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A method and system for servo stripe width detection and compensation including moving a magnetic tape in a first direction across a magnetic tape head, the magnetic tape having a servo band including a first servo pattern and a second servo pattern, the magnetic tape head having a servo element; detecting a leading edge and a trailing edge of the first servo pattern with the servo element; detecting a leading edge and a trailing edge of the second servo pattern with the servo element; determining a first time from the leading edge of the first servo pattern to the leading edge of the second servo pattern; determining a second time from the trailing edge of the first servo pattern to the trailing edge of the second servo pattern; and determining a correction value from a difference between the first time and the second time.
摘要翻译： 一种用于伺服条宽检测和补偿的方法和系统，包括在磁带头上沿第一方向移动磁带，磁带具有包括第一伺服模式和第二伺服模式的伺服带，磁带头具有 伺服元件 用伺服元件检测第一伺服模式的前缘和后缘; 用伺服元件检测第二伺服模式的前缘和后缘; 确定从第一伺服模式的前沿到第二伺服模式的前沿的第一时间; 确定从第一伺服模式的后沿到第二伺服模式的后沿的第二时间; 以及从所述第一时间和所述第二时间之间的差确定校正值。
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公开(公告)号：US20110199701A1
公开(公告)日：2011-08-18
申请号：US12707316
申请日：2010-02-17
申请人： NHAN X. BUI , REED A. HANCOCK , RANDY C. INCH , KEVIN B. JUDD , KAZUHIRO TSURUTA
发明人： NHAN X. BUI , REED A. HANCOCK , RANDY C. INCH , KEVIN B. JUDD , KAZUHIRO TSURUTA
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A servo detection system for detecting servo tracks of a longitudinal tape. In a read/write head, two servo read heads are spaced laterally on a first head module, and a servo read head is on a second head module spaced longitudinally from the first module. A method comprises initially sensing a tape servo track with one servo read head of the first module and the servo read head of the second module to determine skew misalignment of the servo track. A zero reference value is stored representing the determined skew misalignment. The detection system switches from the one servo read head of each module, to the two servo read heads of the first module, and employs the stored value to position the read/write head in the zero skew position. The two servo read heads are then employed to read two servo tracks to identify the data band and to control skew.
摘要翻译： 一种用于检测纵向磁带的伺服磁道的伺服检测系统。 在读/写头中，两个伺服读头在第一头模块上横向隔开，并且伺服读头位于与第一模块纵向间隔开的第二头模块上。 一种方法包括：首先利用第一模块的一个伺服读取头和第二模块的伺服读取头来感测磁带伺服磁道，以确定伺服磁道的偏斜不对准。 存储表示所确定的倾斜未对准的零参考值。 检测系统从每个模块的一个伺服读取头切换到第一个模块的两个伺服读取头，并使用存储的值将读/写头置于零倾斜位置。 然后使用两个伺服读取头来读取两个伺服磁道以识别数据带并控制偏斜。
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5.发明申请METHOD AND APPARATUS TO POSITION A HEAD MODULE COMPRISING SERVO ELEMENTS AND A PLURALITY OF DATA ELEMENTS 有权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
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。
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6.发明申请POSITIONING A COARSE ACTUATOR OF COMPOUND ACTUATOR TAPE SERVO SYSTEM AT MIDPOINT OF MAXIMUM PEAKS OF LATERAL TAPE MOVEMENT 有权定位在最大角度移动的中间点的复合致动器带式伺服系统的执行器公开(公告)号：US20110216440A1
公开(公告)日：2011-09-08
申请号：US12716067
申请日：2010-03-02
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： Where a tape is subject to lateral shift excursions from one side of a head to another, a coarse actuator is positioned laterally to enable a fine actuator to follow lateral motion of a longitudinal tape having at least one longitudinal defined servo track. A position error signal loop is configured to sense servo sensor(s) and to determine position error between the head and a desired position related to the defined servo track(s). A servo control senses the lateral shift excursion of the defined servo track(s); determines a maximum positive peak and a maximum negative peak of the lateral shift excursion; and positions the coarse actuator substantially at a midpoint of the maximum positive peak and the maximum negative peak of lateral shift excursion of the defined servo track(s). Thus, the fine actuator follows the lateral shift excursion, while the coarse actuator remains at the midpoint.
摘要翻译： 在磁带从头的一侧经受横向移位偏移到另一侧的情况下，粗略的致动器被侧向定位，以使得精细致动器能够跟随具有至少一个纵向限定的伺服轨道的纵向带的横向运动。 位置误差信号回路被配置为感测伺服传感器并且确定头部与与所定义的伺服轨道相关的期望位置之间的位置误差。 伺服控制器检测定义的伺服轨道的横向偏移偏移; 确定横向偏移偏移的最大正峰值和最大负峰值; 并且将粗调制器基本上定位在限定的伺服轨道的最大正峰值和横向偏移偏移的最大负峰值的中点。 因此，精细致动器遵循横向偏移偏移，而粗调制器保持在中点。
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公开(公告)号：US20110013313A1
公开(公告)日：2011-01-20
申请号：US12505439
申请日：2009-07-17
IPC分类号： G11B21/02
CPC分类号： G11B15/602 , G11B5/0083 , G11B5/584 , G11B5/78 , G11B15/62
摘要： A method is presented for setting a wrap angle of a read/write head having a servo element and multiple read elements, where the servo element and the read elements can detect a servo signal. The method includes moving a sequential information storage medium having a longitudinal axis and a servo band encoded therein adjacent to the read/write head. The longitudinal axis and a flat upper surface of the read write head define the wrap angle. The method further includes detecting the servo signal using one of the read elements. If the read element is unable to detect the servo signal, then the remaining read elements are sensed to detect the servo signal.
摘要翻译： 提出了一种用于设置具有伺服元件和多个读取元件的读/写头的包角的方法，其中伺服元件和读取元件可以检测伺服信号。 该方法包括移动具有与读/写头相邻编码的纵轴和伺服带的顺序信息存储介质。 读写头的纵向轴线和平坦的上表面限定了包角。 该方法还包括使用读取元件之一来检测伺服信号。 如果读取元件不能检测到伺服信号，则检测剩余的读取元件以检测伺服信号。
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8.发明申请APPARATUS AND METHOD TO ADJUST THE ORIENTATION OF A READ HEAD TO CORRECT FOR DYNAMIC SKEW 有权用于调整读取头的方向以校正动态轴的装置和方法公开(公告)号：US20100315739A1
公开(公告)日：2010-12-16
申请号：US12482312
申请日：2009-06-10
申请人： STEVEN ROSS BENTLEY , NHAN XUAN BUI , REED ALAN HANCOCK , EIJI OGURA , KAZUHIRO TSURUTA , KEISUKE TANAKA
发明人： STEVEN ROSS BENTLEY , NHAN XUAN BUI , REED ALAN HANCOCK , EIJI OGURA , KAZUHIRO TSURUTA , KEISUKE TANAKA
IPC分类号： G11B20/20
CPC分类号： G11B20/10009 , G11B5/0083 , G11B5/584 , G11B20/20 , G11B2020/1281 , G11B2020/1287 , G11B2220/93
摘要： A method to adjust the orientation of a read head comprising a first read element and a second read element, wherein the first read element and the second read element are separated by a distance, wherein the method moves a sequential information storage medium adjacent to the read head, determines a skew angle for the sequential information storage medium with respect to the read head using the first read element and the second read element, and encodes that skew angle in a computer readable medium.
摘要翻译： 一种用于调整包括第一读取元件和第二读取元件的读取头的取向的方法，其中所述第一读取元件和所述第二读取元件被分开一定距离，其中所述方法移动与所述读取元件相邻的顺序信息存储介质 头部使用第一读取元件和第二读取元件确定顺序信息存储介质相对于读取头的歪斜角度，并将该歪斜角度编码在计算机可读介质中。
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9.发明申请APPARATUS AND METHOD TO DECODE LINEAR POSITION INFORMATION ENCODED IN A SEQUENTIAL INFORMATION STORAGE MEDIUM 失效解码在顺序信息存储介质中编码的线性位置信息的装置和方法公开(公告)号：US20090219645A1
公开(公告)日：2009-09-03
申请号：US12040606
申请日：2008-02-29
IPC分类号： G11B15/52
CPC分类号： G11B5/584 , G11B20/12 , G11B2020/1282
摘要： A method to decode linear position (“LPOS”) information encoded in a sequential information storage medium, by detecting each of one or a plurality of sequential first LPOS servo patterns encoded in a first servo band using a first servo sensor in communication with a first servo channel. While detecting that one or a plurality of first LPOS servo patterns, the method fails to detect (n) second LPOS servo patterns encoded in a second servo band. The method determines a value for (n), and then syncs the first servo channel with the second servo channel using that value of (n).
摘要翻译： 一种通过使用第一伺服传感器检测在第一伺服频带中编码的一个或多个连续的第一LPOS伺服模式中的每一个解码在顺序信息存储介质中编码的线性位置（“LPOS”）信息的方法，所述第一伺服传感器与第一 伺服通道。 在检测到一个或多个第一LPOS伺服模式的同时，该方法不能检测（n）在第二伺服带中编码的第二LPOS伺服模式。 该方法确定（n）的值，然后使用该值（n）与第二伺服信道同步第一伺服信道。
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10.发明申请METHOD AND APPARATUS TO IDENTIFY A DATA BAND ENCODED BETWEEN TWO SERVO BANDS IN A SEQUENTIAL INFORMATION STORAGE MEDIUM 失效识别序列信息存储介质中的两个服务器之间的数据带的方法和装置公开(公告)号：US20110013307A1
公开(公告)日：2011-01-20
申请号：US12505442
申请日：2009-07-17
IPC分类号： G11B5/09
CPC分类号： G11B5/584
摘要： A method and apparatus is presented to determine a lateral position of a read/write head relative to a sequential information storage medium having a servo signal encoded therein and moving adjacent to the read/write head, where the servo signal comprises a plurality of pulses. The method includes detecting the servo signal using the read/write head and calculating a timing interval between each of the pulses using a clock rate of a clock signal. The clock rate is then adjusted based upon the velocity of the sequential information storage medium.
摘要翻译： 提供了一种方法和装置，用于确定读/写头相对于其中编码有伺服信号的顺序信息存储介质的横向位置，并且与读/写头相邻移动，其中伺服信号包括多个脉冲。 该方法包括使用读/写头检测伺服信号，并使用时钟信号的时钟速率计算每个脉冲之间的定时间隔。 然后基于顺序信息存储介质的速度来调整时钟速率。
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