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公开(公告)号：US20080174897A1
公开(公告)日：2008-07-24
申请号：US11624538
申请日：2007-01-18
IPC分类号： G11B5/09
CPC分类号： G11B5/584
摘要： An apparatus, system, and method are disclosed for formatting a timing-based servo pattern on a magnetic tape. A first write head concurrently writes a base number of stripes to a plurality of first stripe patterns with a first and third element and writes the base number of stripes to a plurality of second stripe patterns with a second and fourth element of a first write head in response to at least one first write signal. A second write head concurrently writes an incremental number of stripes to a specified first stripe pattern to form a first incremental stripe pattern with a fifth write element and writes the incremental number of stripes to a specified second stripe pattern to form a second incremental stripe pattern with a sixth write element.
摘要翻译： 公开了一种在磁带上格式化基于时序的伺服模式的装置，系统和方法。 第一写入头同时向第一和第三元素的多个第一条带图案中写入基本数量的条带，并将基本条数写入多个第二条纹图案，其中第一写入头的第二和第四元素在 响应于至少一个第一写入信号。 第二写头同时将增加数量的条带写入指定的第一条纹图案以形成具有第五写入元件的第一增量条纹图案，并将增量数量的条纹写入指定的第二条纹图案以形成第二增量条纹图案， 第六个写元素。
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72.发明授权公开(公告)号：US07403350B2
公开(公告)日：2008-07-22
申请号：US11535328
申请日：2006-09-26
摘要： Multiple servo sensors are laterally displaced over a distance less than the transverse width of timing based servo track laterally extending transitions. The servo sensors are configured to sense the transitions, and servo detection logic detects the relative timings of the laterally extending transitions sensed by the laterally displaced servo sensors as the magnetic tape is moved in the longitudinal direction. Logic is configured to determine from the relative timings of the sensed transitions for at least one known set of laterally extending transitions having differing slants, the lateral position of a servo sensor by employing the relative timing detected from one servo sensor and the relative timing detected from another servo sensor, or determine the longitudinal velocity of the magnetic tape by determining the difference between the relative timing detected from one servo sensor and the relative timing detected from another servo sensor.
摘要翻译： 多个伺服传感器在比基于定时的伺服轨道横向延伸过渡的横向宽度小的距离上横向移位。 伺服传感器被配置为感测转换，并且当磁带沿纵向移动时，伺服检测逻辑检测由侧向移位的伺服传感器感测到的横向延伸过渡的相对定时。 逻辑被配置为根据对于具有不同倾斜度的至少一个已知的一组横向延伸的转换来确定感测到的转换的相对定时，伺服传感器的横向位置通过采用从一个伺服传感器检测到的相对定时和从 或者通过确定从一个伺服传感器检测到的相对定时与从另一个伺服传感器检测到的相对定时之间的差来确定磁带的纵向速度。
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73.发明申请MULTIPLE SERVO SENSOR CONFIGURATION FOR MAGNETIC TAPE TIMING BASED SERVO 失效用于基于磁带时序的SERVO的多个伺服传感器配置公开(公告)号：US20080074779A1
公开(公告)日：2008-03-27
申请号：US11535328
申请日：2006-09-26
摘要： Multiple servo sensors are laterally displaced over a distance less than the transverse width of timing based servo track laterally extending transitions. The servo sensors are configured to sense the transitions, and servo detection logic detects the relative timings of the laterally extending transitions sensed by the laterally displaced servo sensors as the magnetic tape is moved in the longitudinal direction. Logic is configured to determine from the relative timings of the sensed transitions for at least one known set of laterally extending transitions having differing slants, the lateral position of a servo sensor by employing the relative timing detected from one servo sensor and the relative timing detected from another servo sensor, or determine the longitudinal velocity of the magnetic tape by determining the difference between the relative timing detected from one servo sensor and the relative timing detected from another servo sensor.
摘要翻译： 多个伺服传感器在比基于定时的伺服轨道横向延伸过渡的横向宽度小的距离上横向移位。 伺服传感器被配置为感测转换，并且当磁带沿纵向移动时，伺服检测逻辑检测由侧向移位的伺服传感器感测到的横向延伸过渡的相对定时。 逻辑被配置为根据对于具有不同倾斜度的至少一个已知的一组横向延伸的转换来确定感测到的转换的相对定时，伺服传感器的横向位置通过采用从一个伺服传感器检测到的相对定时和从 或者通过确定从一个伺服传感器检测到的相对定时与从另一个伺服传感器检测到的相对定时之间的差来确定磁带的纵向速度。
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74.发明授权公开(公告)号：US06940683B2
公开(公告)日：2005-09-06
申请号：US10776300
申请日：2004-02-10
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： Disclosed are a system, a method, and article of manufacture to provide for filtering a servo signal in a tape drive using a matched filter that is optimized for the operating tape velocity of the tape drive. A servo controller for track following on a tape uses a digital filter implementation of the matched filter to produce a filtered servo signal. The digital filter is optimized for different tape velocities by selecting digital filter coefficients for the digital filter that depend upon the tape velocity presently in use. The filtered servo signal is used by the servo controller to provide improved track following in a tape drive.
摘要翻译： 公开了一种系统，方法和制品，用于使用针对带驱动器的操作带速度优化的匹配滤波器来过滤磁带驱动器中的伺服信号。 用于磁带跟踪的伺服控制器使用匹配滤波器的数字滤波器来实现滤波后的伺服信号。 通过为数字滤波器选择数字滤波器系数，数字滤波器针对不同的磁带速度进行了优化，这取决于当前使用的磁带速度。 伺服控制器使用滤波后的伺服信号，在磁带驱动器中提供改进的跟踪。
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公开(公告)号：US08711511B2
公开(公告)日：2014-04-29
申请号：US13526529
申请日：2012-06-19
申请人： Angeliki Pantazi , Nhan Xuan Bui , Jens Jelitto
发明人： Angeliki Pantazi , Nhan Xuan Bui , Jens Jelitto
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格得出的频率特性，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。
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76.发明授权公开(公告)号：US08134797B2
公开(公告)日：2012-03-13
申请号：US12716956
申请日：2010-03-03
申请人： Nhan Xuan Bui , Randy Clark Inch , Eiji Ogura
发明人： Nhan Xuan Bui , Randy Clark Inch , Eiji Ogura
CPC分类号： G11B5/584
摘要： The method employs a servo system for positioning a head laterally to follow lateral motion of a longitudinal tape having longitudinal defined servo track(s), the servo system comprising a servo element configured to sense lateral position of the head with respect to an acquired servo track, a fine actuator configured to translate the head laterally with respect to the longitudinal tape, and a position error signal loop to operate the fine actuator to translate the head laterally to reduce position error. If the servo element is positioned away from the defined servo track(s), a continuous position error offset signal is applied to the fine actuator in a direction towards the defined servo track(s), whereby the fine actuator translates the head in accordance with the continuous position error offset signal; and, in response to the servo system acquiring the defined servo track(s), the continuous position error offset signal is discontinued.
摘要翻译： 该方法采用伺服系统来横向定位头部以跟随具有纵向限定的伺服轨道的纵向带的侧向运动，该伺服系统包括伺服元件，该伺服元件被配置为感测头部相对于所获取的伺服轨道的横向位置 ，精细致动器，被配置为相对于纵向带横向地平移头部;以及位置误差信号回路，用于操作精细致动器以横向平移头部以减少位置误差。 如果伺服元件远离定义的伺服轨道定位，则连续的位置误差偏移信号在朝向所定义的伺服轨道的方向上被施加到精细致动器，由此精细致动器根据 连续位置误差偏移信号; 并且响应于伺服系统获取所定义的伺服轨迹，连续位置误差偏移信号被停止。
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77.发明授权公开(公告)号：US07764460B2
公开(公告)日：2010-07-27
申请号：US12212568
申请日：2008-09-17
CPC分类号： G11B5/584
摘要： Provided are a method, storage controller, and tape drive for adjusting read heads based on misregistration calculated from servo patterns. A plurality of first read heads read a plurality of servo patterns on a storage medium. A determination is made from the read servo patterns a skew at which the first read heads are positioned with respect to the servo patterns written to the storage medium. A determination is made of an adjustment factor to eliminate the determined skew. A plurality of second read heads that read the storage medium are adjusted by the adjustment factor.
摘要翻译： 提供了一种用于基于从伺服模式计算的重新排列来调整读取头的方法，存储控制器和磁带驱动器。 多个第一读取头在存储介质上读取多个伺服图案。 从读取的伺服模式确定第一读取头相对于写入存储介质的伺服模式的位置偏移。 确定调整因子以消除确定的偏差。 通过调节因子来调整读取存储介质的多个第二读取头。
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公开(公告)号：US20080186610A1
公开(公告)日：2008-08-07
申请号：US11670913
申请日：2007-02-02
IPC分类号： G11B5/02
CPC分类号： G11B5/584
摘要： An apparatus, system, and method are disclosed for an “M” servo pattern. A servo pattern write module is included to simultaneously create a first servo mark, a second servo mark, a third servo mark, and a fourth servo mark in an “M” servo pattern on a magnetic tape. The magnetic tape is configured to store data. The first, second, third, and fourth servo marks are substantially linear and are substantially the same length. The first and third servo marks are positioned with a forward slope comprising first and third legs of the “M” pattern. The second and fourth servo marks are positioned with a backward slope comprising second and fourth legs of the “M” pattern. Distances between center points of the first and second servo marks, second and third servo marks, and third and fourth servo marks are substantially the same.
摘要翻译： 公开了一种用于“M”伺服模式的装置，系统和方法。 包括伺服模式写入模块，以在磁带上的“M”伺服模式中同时创建第一伺服标记，第二伺服标记，第三伺服标记和第四伺服标记。 磁带被配置为存储数据。 第一，第二，第三和第四伺服标记基本上是线性的并且基本上是相同的长度。 第一和第三伺服标记被定位成具有包括“M”图案的第一和第三支腿的前斜面。 第二和第四伺服标记被定位成具有包括“M”图案的第二和第四腿的后向斜率。 第一和第二伺服标记，第二和第三伺服标记以及第三和第四伺服标记的中心点之间的距离基本相同。
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79.发明授权System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system 有权用于补偿光学数据存储系统中跟踪误差信号的硬扇区噪声劣化的系统
公开(公告)号：US06052345A
公开(公告)日：2000-04-18
申请号：US261927
申请日：1999-03-03
IPC分类号： G11B11/10 , G11B7/085 , G11B7/09 , G11B11/105
CPC分类号： G11B7/08541 , G11B11/10563 , G11B11/10576 , G11B11/10597 , G11B7/0901
摘要： The invention provides a system for compensating for hard sector noise degradation of tracking error signals in an optical data storage system. The system includes a hard sector detection circuit which generates a first output signal in response to receiving a first input signal representing detection of a hard sector on a magneto-optical disk; a logic circuit which generates a second output signal in response to receiving the first output signal and a second input signal; and a tracking error signal reconstruction circuit which generates an approximated tracking error signal in response to receiving a tracking error signal and the second output signal. The invention may be embodied as hardwired circuitry or as a combination of hardware and software embodied in a computer readable medium and implemented in a digital computer.
摘要翻译： 本发明提供了一种用于补偿光学数据存储系统中跟踪误差信号的硬扇区噪声劣化的系统。 该系统包括：硬扇区检测电路，响应于接收表示磁光盘上的硬扇区的检测的第一输入信号，产生第一输出信号; 响应于接收到第一输出信号和第二输入信号而产生第二输出信号的逻辑电路; 以及跟踪误差信号重建电路，其响应于接收到跟踪误差信号和所述第二输出信号而产生近似跟踪误差信号。 本发明可以实现为硬连线电路或者体现在计算机可读介质中并在数字计算机中实现的硬件和软件的组合。
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80.发明申请公开(公告)号：US20100067139A1
公开(公告)日：2010-03-18
申请号：US12212568
申请日：2008-09-17
IPC分类号： G11B15/18
CPC分类号： G11B5/584
摘要： Provided are a method, storage controller, and tape drive for adjusting read heads based on misregistration calculated from servo patterns. A plurality of first read heads read a plurality of servo patterns on a storage medium. A determination is made from the read servo patterns a skew at which the first read heads are positioned with respect to the servo patterns written to the storage medium. A determination is made of an adjustment factor to eliminate the determined skew. A plurality of second read heads that read the storage medium are adjusted by the adjustment factor.
摘要翻译： 提供了一种用于基于从伺服模式计算的重新排列来调整读取头的方法，存储控制器和磁带驱动器。 多个第一读取头在存储介质上读取多个伺服图案。 从读取的伺服模式确定第一读取头相对于写入存储介质的伺服模式的位置偏移。 确定调整因子以消除确定的偏差。 通过调节因子来调整读取存储介质的多个第二读取头。
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