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1. 发明授权

US07175122B2 Compensation for tape breakage in a tape drive 失效
标题翻译：磁带驱动器中磁带损坏的补偿
公开(公告)号：US07175122B2
公开(公告)日：2007-02-13
申请号：US10765789
申请日：2004-01-26
申请人： Nhan Xuan Bui , Junichi Fukuda , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Junichi Fukuda , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/18
CPC分类号： G11B15/093
摘要： Disclosed are a system, a method, and an article of manufacture to provide for the detection and compensation of tape breakage in a tape drive. The invention operates by simultaneously monitoring the tape reel rotation direction and the ratio of rotation between the tape reels. If the rotation direction is not the same for both reels, then tape breakage is indicated and reel rotation ceases. Tape breakage is also detected if the tape reel angular rotation ratio between the supply and take up reels is not within a specified tape reel ratio range. The tape reel angular rotation ratio is detected by simultaneously measuring the angular rotation of each tape reel in a specified time period and then calculating the ratio. The present invention detects the tape reel angular rotation ratio and if tape reel angular rotation ratio is outside of the specified tape reel ratio range, tape breakage is indicated and reel rotation ceases.
摘要翻译：公开了一种用于提供磁带驱动器中的磁带破损的检测和补偿的系统，方法和制品。本发明通过同时监测磁带卷轴的旋转方向和磁带盘之间的旋转比来操作。如果两个卷轴的旋转方向不一致，则表示带子断裂，并且卷轴旋转停止。如果供纸卷取卷轴之间的磁带卷轴角度旋转比不在指定的磁带卷盘比范围内，则也会检测到磁带断线。通过在规定的时间段内同时测量每个磁带卷轴的角度旋转，然后计算该比率来检测磁带卷轴角度旋转比。本发明检测磁带卷轴的角度旋转比，如果磁带卷轴角度旋转比在指定的磁带卷盘比例范围之外，则表示磁带破损并且卷轴旋转停止。

2. 发明授权

US07364106B2 Compensation for tape breakage in a tape drive 失效
标题翻译：磁带驱动器中磁带损坏的补偿
公开(公告)号：US07364106B2
公开(公告)日：2008-04-29
申请号：US11674615
申请日：2007-02-13
申请人： Nhan Xuan Bui , Junichi Fukuda , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Junichi Fukuda , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/18
CPC分类号： G11B15/093
摘要： Disclosed are a system, a method, and an article of manufacture to provide for the detection and compensation of tape breakage in a tape drive. The invention operates by simultaneously monitoring the tape reel rotation direction and the ratio of rotation between the tape reels. If the rotation direction is not the same for both reels, then tape breakage is indicated and reel rotation ceases. Tape breakage is also detected if the tape reel angular rotation ratio between the supply and take up reels is not within a specified tape reel ratio range. The tape reel angular rotation ratio is detected by simultaneously measuring the angular rotation of each tape reel in a specified time period and then calculating the ratio. The present invention detects the tape reel angular rotation ratio and if tape reel angular rotation ratio is outside of the specified tape reel ratio range, tape breakage is indicated and reel rotation ceases.
摘要翻译：公开了一种用于提供磁带驱动器中的磁带破损的检测和补偿的系统，方法和制品。本发明通过同时监测磁带卷轴的旋转方向和磁带盘之间的旋转比来操作。如果两个卷轴的旋转方向不一致，则表示带子断裂，并且卷轴旋转停止。如果供纸卷取卷轴之间的磁带卷轴角度旋转比不在指定的磁带卷盘比范围内，则也会检测到磁带断线。通过在规定的时间段内同时测量每个磁带卷轴的角度旋转，然后计算该比率来检测磁带卷轴角度旋转比。本发明检测磁带卷轴的角度旋转比，如果磁带卷轴角度旋转比在指定的磁带卷盘比例范围之外，则表示磁带破损并且卷轴旋转停止。

3. 发明申请

US20080223968A1 APPARATUS, SYSTEM, AND METHOD FOR CHECKING TAPE REEL MOTION 审中-公开
标题翻译：装置，系统和检查胶卷运动的方法
公开(公告)号：US20080223968A1
公开(公告)日：2008-09-18
申请号：US11686840
申请日：2007-03-15
申请人： NHAN Xuan BUI , Reed Alan Hancock , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
发明人： NHAN Xuan BUI , Reed Alan Hancock , Randy Clark Inch , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G03B1/58
CPC分类号： G11B15/32
摘要： An apparatus, system, and method are disclosed for checking tape reel motion. A control module directs a leading servo to apply torque to a leading reel and a trailing servo to apply torque to a trailing reel, wherein the control module directs the leading servo to apply an initial positive torque in a tape motion direction and directs the trailing servo to apply an initial negative torque counter to the tape motion direction. If there is no change in an angular position of the leading and trailing reels, the control module incrementally sums a first incremental positive torque to the leading torque to increase the leading torque and a second incremental positive torque to the trailing torque until there is a change in the angular position of the leading and trailing reels and/or until the torques exceed torque limits.
摘要翻译：公开了用于检查磁带卷轴运动的装置，系统和方法。控制模块引导前置伺服器将扭矩施加到前导卷轴和拖尾伺服器以向后拖线器施加扭矩，其中控制模块引导前导伺服器施加带运动方向上的初始正扭矩并引导拖尾伺服对带运动方向施加初始负扭矩计数器。如果前导和后退卷轴的角位置没有改变，则控制模块将第一增量正转矩递增地与前导转矩相加，以将前导转矩和第二增量正转矩增加到拖曳转矩直到有变化在前导和后退卷轴的角位置和/或直到扭矩超过转矩限制。

4. 发明授权

US08405926B2 Tape drive velocity control 失效
标题翻译：磁带机速度控制
公开(公告)号：US08405926B2
公开(公告)日：2013-03-26
申请号：US12842938
申请日：2010-07-23
申请人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/52 , G11B15/46
CPC分类号： G11B15/32 , G11B15/46 , G11B15/52
摘要： In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value.
摘要翻译：根据本发明，提供了一种操作磁带驱动器，磁带驱动器和伺服控制系统的方法，用于获得和维持磁带驱动器中的速度控制。在一个实施例中，提供了一种用于操作磁带驱动器的方法。磁带驱动器包括多个DC电动机，并且每个DC电动机具有多个霍尔传感器。直流电动机处于伺服系统的控制之下，伺服系统被配置为从磁带读取位置信息，并从位置信息计算主带速度，并感测二次和三次速度信号，并基于一个速度信号计算磁带速度的感测二次速度信号和三次速度。该方法包括检测主速度位置信息是否可用。响应于检测到主速度位置信息可用，主速度被用于控制伺服系统。响应于检测到主速度位置信息不可用，则采用次速或三速信号中的一个。当与磁带速度相关的项的绝对值小于预定值时，采用二次速度信号。当与磁带速度相关的项的绝对值大于预定值时，采用三次速度信号。

5. 发明申请

US20120019953A1 'Tape Drive Velocity Control' 失效
标题翻译： “磁带驱动器速度控制”
公开(公告)号：US20120019953A1
公开(公告)日：2012-01-26
申请号：US12842938
申请日：2010-07-23
申请人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B19/02
CPC分类号： G11B15/32 , G11B15/46 , G11B15/52
摘要： In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value.
摘要翻译：根据本发明，提供了一种操作磁带驱动器，磁带驱动器和伺服控制系统的方法，用于获得和维持磁带驱动器中的速度控制。在一个实施例中，提供了一种用于操作磁带驱动器的方法。磁带驱动器包括多个DC电动机，并且每个DC电动机具有多个霍尔传感器。直流电动机处于伺服系统的控制之下，伺服系统被配置为从磁带读取位置信息，并从位置信息计算主带速度，并感测二次和三次速度信号，并基于一个速度信号计算磁带速度的感测二次速度信号和三次速度。该方法包括检测主速度位置信息是否可用。响应于检测到主速度位置信息可用，主速度被用于控制伺服系统。响应于检测到主速度位置信息不可用，则采用次速或三速信号中的一个。当与磁带速度相关的项的绝对值小于预定值时，采用二次速度信号。当与磁带速度相关的项的绝对值大于预定值时，采用三次速度信号。

6. 发明授权

US08054576B2 Skew actuator to servo track zero reference 有权
标题翻译：倾斜执行器到伺服跟踪零参考
公开(公告)号：US08054576B2
公开(公告)日：2011-11-08
申请号：US12707316
申请日：2010-02-17
申请人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Kevin Bruce Judd , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Kevin Bruce Judd , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B20/20
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。

7. 发明授权

US08134797B2 Application of continuous position error offset signal to acquire servo track 失效
标题翻译：应用连续位置误差偏移信号采集伺服轨迹
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
IPC分类号： G11B5/55 , G11B5/584
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。

8. 发明授权

US08351146B2 Recovery operation status indicator for a tape drive system 有权
标题翻译：磁带机系统的恢复操作状态指示灯
公开(公告)号：US08351146B2
公开(公告)日：2013-01-08
申请号：US12717930
申请日：2010-03-04
申请人： Shawn Owen Brume , Kevin Dale Butt , Randy Clark Inch , Hirokazu Nakayama , Eiji Ogura
发明人： Shawn Owen Brume , Kevin Dale Butt , Randy Clark Inch , Hirokazu Nakayama , Eiji Ogura
IPC分类号： G11B27/34 , G11B27/13
CPC分类号： G08B5/00 , G11B5/78
摘要： A method, apparatus and computer-program product for indicating progress status of a mid-tape or data recovery operation in a tape drive. The method includes visually indicating that a recovery operation has started, periodically determining the remaining recovery time based on the remaining tape spool, and displaying the determined remaining recovery time to show progress status of the operation. The determination of the remaining recovery time includes determining the length of the tape being processed based on an estimated radius of the remaining tape spool and system parameters. The remaining recovery time is displayed with a moving track to show progress toward completion.
摘要翻译：一种用于指示磁带驱动器中的中间磁带或数据恢复操作的进展状态的方法，装置和计算机程序产品。该方法包括可视地指示恢复操作已经开始，基于剩余的磁带卷轴周期性地确定剩余恢复时间，并且显示所确定的剩余恢复时间以显示操作的进展状态。剩余恢复时间的确定包括基于剩余磁带卷轴的估计半径和系统参数确定正在处理的磁带的长度。剩余的恢复时间显示为一个移动轨迹，以显示完成进度。

9. 发明申请

US20110216444A1 RECOVERY OPERATION STATUS INDICATOR FOR A TAPE DRIVE SYSTEM 有权
标题翻译：用于磁带驱动系统的恢复操作状态指示器
公开(公告)号：US20110216444A1
公开(公告)日：2011-09-08
申请号：US12717930
申请日：2010-03-04
申请人： Shawn Owen Brume , Kevin Dale Butt , Randy Clark Inch , Hirokazu Nakayama , Eiji Ogura
发明人： Shawn Owen Brume , Kevin Dale Butt , Randy Clark Inch , Hirokazu Nakayama , Eiji Ogura
IPC分类号： G11B5/78 , G08B5/00
CPC分类号： G08B5/00 , G11B5/78
摘要： A method, apparatus and computer-program product for indicating progress status of a mid-tape or data recovery operation in a tape drive. The method includes visually indicating that a recovery operation has started, periodically determining the remaining recovery time based on the remaining tape spool, and displaying the determined remaining recovery time to show progress status of the operation. The determination of the remaining recovery time includes determining the length of the tape being processed based on an estimated radius of the remaining tape spool and system parameters. The remaining recovery time is displayed with a moving track to show progress toward completion.
摘要翻译：一种用于指示磁带驱动器中的中间磁带或数据恢复操作的进展状态的方法，装置和计算机程序产品。该方法包括可视地指示恢复操作已经开始，基于剩余的磁带卷轴周期性地确定剩余恢复时间，并且显示所确定的剩余恢复时间以显示操作的进展状态。剩余恢复时间的确定包括基于剩余磁带卷轴的估计半径和系统参数确定正在处理的磁带的长度。剩余的恢复时间显示为一个移动轨迹，以显示完成进度。

10. 发明授权

US08059362B2 Positioning a coarse actuator of compound actuator tape servo system at midpoint of maximum peaks of lateral tape movement 有权
标题翻译：将复合执行机构带式伺服系统的粗调执行器定位在侧带移动的最大峰值的中点
公开(公告)号：US08059362B2
公开(公告)日：2011-11-15
申请号：US12716067
申请日：2010-03-02
申请人： Reed Alan Hancock , Randy Clark Inch , Kevin Bruce Judd , Kazuhiro Tsuruta
发明人： Reed Alan Hancock , Randy Clark Inch , Kevin Bruce Judd , Kazuhiro Tsuruta
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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