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1. 发明授权

US06934109B2 Apparatus and method to monitor the relative position of a tape medium disposed in a tape drive 失效
标题翻译：用于监测布置在磁带驱动器中的磁带介质的相对位置的装置和方法
公开(公告)号：US06934109B2
公开(公告)日：2005-08-23
申请号：US10645059
申请日：2003-08-21
申请人： Nhan X. Bui , Randy C. Inch , Junichi Fukuda , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Randy C. Inch , Junichi Fukuda , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/46 , G11B15/54 , G11B27/10 , G11B27/13 , G11B15/18 , G11B15/48
CPC分类号： G11B15/46 , G11B15/54 , G11B27/107 , G11B27/13 , G11B2220/90
摘要： A method to monitor the relative position of a magnetic tape disposed in a tape drive, where that tape drive includes a first tape reel motor and a second tape reel motor. The method provides a magnetic tape disposed on a first tape reel, and releaseably attaches the first tape reel to the first tape reel motor. The method further provides a second tape reel attached to the second tape reel motor. The method operates the first tape reel motor and the second tape reel motor to transfer the tape from the first tape reel onto the second tape reel while maintaining a running second reel rotation count. The method sets a second reel rotation count limit, and determines if the running second reel rotation count exceeds that second reel rotation count limit. If the running second reel rotation count exceeds the second reel rotation count limit, then the method discontinues operation of the tape reel motors.
摘要翻译：一种监视磁带驱动器中设置的磁带的相对位置的方法，其中该磁带驱动器包括第一磁带盘马达和第二磁带卷盘马达。该方法提供了设置在第一带盘上的磁带，并将第一带卷盘可释放地附接到第一带盘马达。该方法还提供了附接到第二带盘马达的第二带盘。该方法操作第一带盘马达和第二带盘马达，以将带从第一带卷轴传送到第二带卷轴上，同时保持运行的第二卷轴旋转计数。该方法设置第二卷轴旋转计数限制，并且确定运行的第二卷轴旋转计数是否超过第二卷轴旋转计数极限。如果运行中的第二卷轴旋转数超过第二卷轴旋转计数极限，则该方法停止带盘马达的运行。

2. 发明申请

US20080156919A1 METHOD FOR REDUCING OCCURRENCES OF TAPE STICK CONDITIONS IN MAGNETIC TAPE 失效
标题翻译：用于减少磁带中胶带条件的影响的方法
公开(公告)号：US20080156919A1
公开(公告)日：2008-07-03
申请号：US11619101
申请日：2007-01-02
申请人： Josephine F. Bayang , Nhan X. Bui , Ernest S. Gale , Eiji Ogura , Kazuhiro Tsuruta
发明人： Josephine F. Bayang , Nhan X. Bui , Ernest S. Gale , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/48
CPC分类号： G11B15/64 , G11B15/1808 , G11B15/20 , G11B15/43
摘要： Disclosed is a method for reducing occurrences of stick conditions in tape, the method including stopping rotation of a supply reel and take-up reel of a drive that includes a length of tape, a portion of the tape extending between the reels and contacting a head between the reels, wherein the stopping creates a stop condition in the drive, determining if the tape is stuck to the head, dropping tension in the tape between the reels, freeing the tape for movement in a z-direction via the dropping tension, moving the head in y-directions, moving the tape in an x-direction via a rotation of the supply reel a fraction of a rotation, and causing the tape to break contact with the head via the dropping, moving of the tape in the z-direction, moving of the tape in the x-direction, and/or moving of the head in the y-directions.
摘要翻译：公开了一种用于减少胶带中的条件的发生的方法，该方法包括停止包括一段胶带的驱动器的供带盘和卷取卷轴的旋转，所述带的一部分在卷轴之间延伸并接触头部在所述卷轴之间，其中所述停止在所述驱动器中产生停止状态，确定所述带是否粘附到所述头部，在所述卷轴之间降低所述带中的张力，释放所述带以通过所述下落张力沿z方向移动，移动磁头在y方向上，通过供给卷轴的旋转沿x方向移动磁带的一小部分旋转，并且使磁带经由下落，磁带在z轴方向上移动而与头部断开接触，方向，沿x方向移动胶带，和/或使头部沿y方向移动。

3. 发明授权

US07391585B1 Method for reducing occurrences of tape stick conditions in magnetic tape 失效
标题翻译：用于减少磁带中胶带条件发生的方法
公开(公告)号：US07391585B1
公开(公告)日：2008-06-24
申请号：US11619101
申请日：2007-01-02
申请人： Josephine F. Bayang , Nhan X. Bui , Ernest S. Gale , Eiji Ogura , Kazuhiro Tsuruta
发明人： Josephine F. Bayang , Nhan X. Bui , Ernest S. Gale , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/18 , G11B15/20 , G11B15/43
CPC分类号： G11B15/64 , G11B15/1808 , G11B15/20 , G11B15/43
摘要： Disclosed is a method for reducing occurrences of stick conditions in tape, the method including stopping rotation of a supply reel and take-up reel of a drive that includes a length of tape, a portion of the tape extending between the reels and contacting a head between the reels, wherein the stopping creates a stop condition in the drive, determining if the tape is stuck to the head, dropping tension in the tape between the reels, freeing the tape for movement in a z-direction via the dropping tension, moving the head in y-directions, moving the tape in an x-direction via a rotation of the supply reel a fraction of a rotation, and causing the tape to break contact with the head via the dropping, moving of the tape in the z-direction, moving of the tape in the x-direction, and/or moving of the head in the y-directions.
摘要翻译：公开了一种用于减少胶带中的条件的发生的方法，该方法包括停止包括一段胶带的驱动器的供带盘和卷取卷轴的旋转，所述带的一部分在卷轴之间延伸并接触头部在所述卷轴之间，其中所述停止在所述驱动器中产生停止状态，确定所述带是否粘附到所述头部，在所述卷轴之间降低所述带中的张力，释放所述带以通过所述滴下张力沿z方向移动，移动磁头在y方向上，通过供给卷轴的旋转沿x方向移动磁带的一小部分旋转，并且使磁带经由下落，磁带在z轴方向上移动而与头部断开接触，方向，沿x方向移动胶带，和/或使头部沿y方向移动。

4. 发明授权

US08526134B2 System for fast center calibration of a tape drive for a flangeless tape path 有权
标题翻译：用于快速中心校准用于无法兰磁带路径的磁带机的系统
公开(公告)号：US08526134B2
公开(公告)日：2013-09-03
申请号：US13152238
申请日：2011-06-02
申请人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
发明人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
IPC分类号： G11B5/584
CPC分类号： G11B21/103 , G11B5/584
摘要： A servo system according to one embodiment includes at least one servo sensor for sensing a lateral position of a magnetic head with respect to at least one defined servo track of a longitudinal tape; a fine actuator configured to translate the magnetic head laterally with respect to the longitudinal tape; a coarse actuator configured to translate the fine actuator laterally with respect to the longitudinal tape; and a servo control. The servo control is configured to perform various operations that may be used to estimate a midpoint of lateral tape excursion of a flangeless tape path for calibrating a tape drive. Additional systems are also presented.
摘要翻译：根据一个实施例的伺服系统包括至少一个伺服传感器，用于相对于纵向带的至少一个限定的伺服轨道感测磁头的横向位置; 精细致动器，被配置为相对于纵向带横向移动磁头; 粗致动器构造成相对于纵向带横向地平移细致致动器; 和伺服控制。伺服控制被配置为执行可用于估计用于校准磁带驱动器的无法兰磁带路径的侧向磁带偏移的中点的各种操作。还介绍了其他系统。

5. 发明授权

US08687314B2 Methods for fast center calibration of a tape drive for a flangeless tape path 有权
标题翻译：用于快速中心校准用于无法兰磁带路径的磁带驱动器的方法
公开(公告)号：US08687314B2
公开(公告)日：2014-04-01
申请号：US13484176
申请日：2012-05-30
申请人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
发明人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
IPC分类号： G11B5/584
CPC分类号： G11B21/103 , G11B5/584
摘要： According to one embodiment, a method includes sensing a first servo sensor while a longitudinal tape is moved in a first direction; determining position error between the magnetic head and a desired position related to the at least one defined servo track; providing signals to operate a fine actuator to translate the magnetic head laterally in a manner to reduce the determined position error; calculating a first average position of the magnetic head for at least one first run-out cycle while the longitudinal tape is moved in the first direction; calculating a first offset of the magnetic head while the longitudinal tape is moved in the first direction; operating a coarse actuator to position the coarse actuator substantially at a target position using the first offset and the first average position.
摘要翻译：根据一个实施例，一种方法包括在纵向带沿第一方向移动时感测第一伺服传感器; 确定所述磁头与与所述至少一个限定的伺服磁道相关的期望位置之间的位置误差; 提供信号以操作精细致动器以以减少所确定的位置误差的方式横向地转动磁头; 当所述纵向带沿所述第一方向移动时，计算所述磁头的至少一个第一偏移周期的第一平均位置; 当所述纵向带沿所述第一方向移动时计算所述磁头的第一偏移; 操作粗略致动器以使用第一偏移和第一平均位置将粗调制器基本上定位在目标位置。

6. 发明申请

US20120307401A1 SYSTEM AND METHOD FOR FAST CENTER CALIBRATION OF A TAPE DRIVE FOR A FLANGELESS TAPE PATH 有权
标题翻译：用于无缝带路径的带状驱动器的快速中心校准的系统和方法
公开(公告)号：US20120307401A1
公开(公告)日：2012-12-06
申请号：US13152238
申请日：2011-06-02
申请人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
发明人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
IPC分类号： G11B5/584
CPC分类号： G11B21/103 , G11B5/584
摘要： A servo system according to one embodiment includes at least one servo sensor for sensing a lateral position of a magnetic head with respect to at least one defined servo track of a longitudinal tape; a fine actuator configured to translate the magnetic head laterally with respect to the longitudinal tape; a coarse actuator configured to translate the fine actuator laterally with respect to the longitudinal tape; and a servo control. The servo control is configured to perform various operations that may be used to estimate a midpoint of lateral tape excursion of a flangeless tape path for calibrating a tape drive. Additional systems are also presented.
摘要翻译：根据一个实施例的伺服系统包括至少一个伺服传感器，用于相对于纵向带的至少一个限定的伺服轨道感测磁头的横向位置; 精细致动器，被配置为相对于纵向带横向移动磁头; 粗致动器构造成相对于纵向带横向地平移细致致动器; 和伺服控制。伺服控制被配置为执行可用于估计用于校准磁带驱动器的无法兰磁带路径的侧向磁带偏移的中点的各种操作。还介绍了其他系统。

7. 发明申请

US20120307402A1 METHODS FOR FAST CENTER CALIBRATION OF A TAPE DRIVE FOR A FLANGELESS TAPE PATH 有权
标题翻译：用于无缝带路径的带状驱动器的快速中心校准方法
公开(公告)号：US20120307402A1
公开(公告)日：2012-12-06
申请号：US13484176
申请日：2012-05-30
申请人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
发明人： Nhan X. Bui , Reed A. Hancock , Randy C. Inch
IPC分类号： G11B5/584
CPC分类号： G11B21/103 , G11B5/584
摘要： According to one embodiment, a method includes sensing a first servo sensor while a longitudinal tape is moved in a first direction; determining position error between the magnetic head and a desired position related to the at least one defined servo track; providing signals to operate a fine actuator to translate the magnetic head laterally in a manner to reduce the determined position error; calculating a first average position of the magnetic head for at least one first run-out cycle while the longitudinal tape is moved in the first direction; calculating a first offset of the magnetic head while the longitudinal tape is moved in the first direction; operating a coarse actuator to position the coarse actuator substantially at a target position using the first offset and the first average position.
摘要翻译：根据一个实施例，一种方法包括在纵向带沿第一方向移动时感测第一伺服传感器; 确定所述磁头与与所述至少一个限定的伺服磁道相关的期望位置之间的位置误差; 提供信号以操作精细致动器以以减少所确定的位置误差的方式横向地转动磁头; 当所述纵向带沿所述第一方向移动时，计算所述磁头的至少一个第一偏移周期的第一平均位置; 当所述纵向带沿所述第一方向移动时计算所述磁头的第一偏移; 操作粗略致动器以使用第一偏移和第一平均位置将粗调制器基本上定位在目标位置。

8. 发明授权

US08395860B2 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：US08395860B2
公开(公告)日：2013-03-12
申请号：US13460614
申请日：2012-04-30
申请人： Nhan X. Bui , Giovanni Cherubini , Robert A. Hutchins , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Giovanni Cherubini , Robert A. 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。

9. 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。

10. 发明申请

US20110134556A1 Detection and Acquisition of a Servo Pattern Subject to Lateral Motion 有权
标题翻译：检测和获取侧向运动的伺服模式
公开(公告)号：US20110134556A1
公开(公告)日：2011-06-09
申请号：US12630087
申请日：2009-12-03
申请人： Nhan X. Bui , Reed A. Hancock , Kevin B. Judd , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Reed A. Hancock , Kevin B. Judd , Kazuhiro Tsuruta
IPC分类号： G11B27/36 , G11B5/584
CPC分类号： G11B5/584
摘要： A method, a servo system and a tape drive are provided to acquire lock on a servo signal. The servo signals of at least one servo element are monitored to detect a valid servo signal. If a valid servo signal is not detected than the fine actuator is moved in a first direction until either a valid servo signal is detected or the fine actuator travel limit is reached. When a valid servo signal is detected, the fine actuator is set to a neutral position and the coarse actuator is moved in the first direction. When the fine actuator travel limit is reached the fine actuator is moved to the first position and the coarse actuator is moved in a second direction, opposite of the first direction.
摘要翻译：提供一种方法，伺服系统和磁带驱动器来获取对伺服信号的锁定。监视至少一个伺服元件的伺服信号以检测有效的伺服信号。如果没有检测到有效的伺服信号比精细致动器沿第一方向移动，直到检测到有效的伺服信号或达到精细执行器行程极限。当检测到有效的伺服信号时，精细致动器被设定为中立位置，粗略的致动器沿第一方向移动。当达到精细致动器行程极限时，精细致动器移动到第一位置，并且粗略致动器沿与第一方向相反的第二方向移动。

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