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1. 发明申请

US20140063649A1 DYNAMICALLY CONTROLLING TAPE VELOCITY 有权
标题翻译：动态控制磁带速度
公开(公告)号：US20140063649A1
公开(公告)日：2014-03-06
申请号：US13596876
申请日：2012-08-28
申请人： Nhan Xuan BUI , Kevin Bruce Judd , Roger Javier Justo , Hirokazu Nakayama , Tomoko Taketomi
发明人： Nhan Xuan BUI , Kevin Bruce Judd , Roger Javier Justo , Hirokazu Nakayama , Tomoko Taketomi
IPC分类号： G11B5/584
CPC分类号： G11B15/06 , G11B5/584 , G11B15/20 , G11B15/46 , G11B15/52
摘要： A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.
摘要翻译：在磁带驱动操作期间动态地确定最大速度，以获得产生避免反向干扰的停止写（SW）操作量的位置误差信号（PES）的统计标准偏差。磁带速度被调整到最大速度。

2. 发明授权

US08902531B2 Dynamically controlling tape velocity 有权
标题翻译：动态控制胶卷速度
公开(公告)号：US08902531B2
公开(公告)日：2014-12-02
申请号：US13596876
申请日：2012-08-28
申请人： Nhan Xuan Bui , Kevin Bruce Judd , Roger Javier Justo , Hirokazu Nakayama , Tomoko Taketomi
发明人： Nhan Xuan Bui , Kevin Bruce Judd , Roger Javier Justo , Hirokazu Nakayama , Tomoko Taketomi
IPC分类号： G11B15/46
CPC分类号： G11B15/06 , G11B5/584 , G11B15/20 , G11B15/46 , G11B15/52
摘要： A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.
摘要翻译：在磁带驱动操作期间动态地确定最大速度，以获得产生避免反向干扰的停止写（SW）操作量的位置误差信号（PES）的统计标准偏差。磁带速度被调整到最大速度。

3. 发明授权

US08780474B2 Writing data to tape medium 失效
标题翻译：将数据写入磁带介质
公开(公告)号：US08780474B2
公开(公告)日：2014-07-15
申请号：US13167943
申请日：2011-06-24
申请人： Takamasa Hirata , Setsuko Masuda , Yuhko Mori , Yutaka Oishi , Tomoko Taketomi , Terue Watanabe
发明人： Takamasa Hirata , Setsuko Masuda , Yuhko Mori , Yutaka Oishi , Tomoko Taketomi , Terue Watanabe
IPC分类号： G11B5/09
CPC分类号： G11B5/00813 , G11B20/10527 , G11B20/18 , G11B2020/10759 , G11B2220/90
摘要： In a controller of a tape drive, a CM input-output unit recognizes a tape format; a tape variable acquisition unit acquires tape variables; a setting variable acquisition unit acquires setting variables; and a minimum number calculator calculates a minimum number m of sub datasets, which are to be written to a tape to secure resistance to burst error, by using the tape variables and setting variables. When a command processor receives a synchronization command, the buffer manager generates n sub datasets for storing data in the buffer. If n is smaller than m, m sub datasets are padded out and set as write data. If n is m or more, the n sub datasets are set as write data. Then, the channel input-output unit writes the write data to the tape.
摘要翻译：在磁带驱动器的控制器中，CM输入 - 输出单元识别磁带格式; 磁带变量获取单元获取磁带变量; 设置变量获取单元获取设置变量; 并且最小数量计算器通过使用磁带变量和设置变量来计算要写入磁带以确保电阻突发错误的子数据集的最小数量m。当命令处理器接收到同步命令时，缓冲器管理器生成用于在缓冲器中存储数据的n个子数据集。如果n小于m，则m个子数据集被填充并设置为写入数据。如果n为m以上，则将n个子数据集设为写入数据。然后，通道输入 - 输出单元将写数据写入磁带。

4. 发明授权

US08732393B2 Apparatus, method and program product for determining the data recall order 有权
标题翻译：用于确定数据回调顺序的装置，方法和程序产品
公开(公告)号：US08732393B2
公开(公告)日：2014-05-20
申请号：US13120642
申请日：2009-09-02
申请人： Norie Iwasaki , Yutaka Oishi , Tomoko Taketomi , Kazuhiro Tsuruta
发明人： Norie Iwasaki , Yutaka Oishi , Tomoko Taketomi , Kazuhiro Tsuruta
IPC分类号： G06F3/06 , G06F13/10
CPC分类号： G06F3/0611 , G06F3/0629 , G06F3/0635 , G06F3/0659 , G06F3/0682 , G06F3/0686
摘要： To provide a technique for optimizing the processing order of recall requests in which the average latency time of a host apparatus is minimized. A storage manager accepts a request of the host apparatus for the recalling data from a tape library, and stores the request in a queue table. In response to storage of the request, the storage manager calculates the latency time for each request in all the conceivable execution orders for all the requests stored in the queue table. The storage manager determines the execution order which minimizes the total calculated latency time for all the requests including the active request, and rearranges the requests in the queue table.
摘要翻译：提供一种用于优化其中主机设备的平均等待时间最小化的召回请求的处理顺序的技术。存储管理器接受来自磁带库的调用数据的主机设备的请求，并将该请求存储在队列表中。响应于请求的存储，存储管理器在存储在队列表中的所有请求的所有可能的执行顺序中计算每个请求的等待时间。存储管理器确定使包括活动请求的所有请求的总计算等待时间最小化的执行顺序，并且重新排列队列表中的请求。

5. 发明申请

US20140022666A1 VARIABLE STOPWRITE THRESHOLD WITH VARIABLE SMOOTHING FACTOR 失效
标题翻译：具有可变平滑因子的可变停止门限
公开(公告)号：US20140022666A1
公开(公告)日：2014-01-23
申请号：US13554966
申请日：2012-07-20
申请人： Nhan X. Bui , Kevin B. Judd , Tomoko Taketomi
发明人： Nhan X. Bui , Kevin B. Judd , Tomoko Taketomi
IPC分类号： G11B21/02
CPC分类号： G11B5/00817 , G11B5/0083 , G11B5/09 , G11B5/584 , G11B20/10388 , G11B27/36
摘要： In one embodiment, a data storage system includes a head; a drive mechanism for passing a medium over the head; a controller electrically coupled to the head; logic encoded in or available to the controller for: periodically determining a stopwrite threshold based on a standard deviation or a variance at a current position error signal sample, wherein a smoothing factor applied to a subsequent calculation of the standard deviation or variance is altered based at least in part on a current magnitude of the standard deviation or the variance; determining whether the current position error signal sample exceeds the stopwrite threshold; disabling writing when the current position error signal sample exceeds the stopwrite threshold; and enabling writing when the current position error signal sample does not exceed the stopwrite threshold. Other systems, methods, and computer program products are described according to more embodiments.
摘要翻译：在一个实施例中，数据存储系统包括头部; 用于使介质通过头部的驱动机构; 控制器电耦合到头部; 编码在或可用于控制器的逻辑，用于：基于当前位置误差信号样本的标准偏差或方差周期性地确定停止写入阈值，其中应用于随后的标准偏差或方差的计算的平滑因子基于至少部分地基于当前的标准偏差或方差的大小; 确定当前位置误差信号样本是否超过限制写入阈值; 当当前位置错误信号样本超过限制写入阈值时禁止写入; 并且当当前位置误差信号采样不超过限制写入阈值时使能写入。根据更多实施例描述其它系统，方法和计算机程序产品。

6. 发明申请

US20120307390A1 SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR FAST RECOVERY TO A WRITE STATE 失效
标题翻译：系统，方法和计算机程序产品，用于快速恢复到写状态
公开(公告)号：US20120307390A1
公开(公告)日：2012-12-06
申请号：US13152225
申请日：2011-06-02
申请人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
发明人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
IPC分类号： G11B27/36
CPC分类号： G11B5/56 , G11B5/00817 , G11B5/584 , G11B15/602 , G11B20/10388 , G11B2220/93
摘要： In one embodiment, a tape drive system includes a magnetic head having at least one servo sensor for track-following at least one defined servo track of a longitudinal tape, a tape motion controller configured to move the longitudinal tape past the magnetic head, a compound actuator configured to translate the magnetic head laterally with respect to the longitudinal tape, and a control configured to track-follow the at least one defined servo track by reducing a position error between the magnetic head and a desired position, transition from a write state to a monitor state when the position error is greater than a threshold, transition from the monitor state to a stop write state when the position error is greater than the threshold for a first period, and transition from the monitor state to the write state when the position error is less than the threshold for a second period.
摘要翻译：在一个实施例中，磁带驱动系统包括具有至少一个伺服传感器的磁头，该伺服传感器跟踪至少一个所定义的纵向磁带的伺服磁道，配置成使纵向磁带移动通过磁头的磁带运动控制器，致动器被配置为相对于纵向带横向地平移磁头;以及控制器，其被配置为通过减小磁头与期望位置之间的位置误差跟踪至少一个定义的伺服轨迹，控制器从写入状态转换到当位置误差大于阈值时的监视状态，当位置误差大于第一周期的阈值时从监视状态转变到停止写入状态，以及当位置误差大于阈值时从监视状态转变到写入状态错误小于第二个周期的阈值。

7. 发明授权

US08520332B2 Method for fast recovery to a write state 失效
标题翻译：快速恢复到写入状态的方法
公开(公告)号：US08520332B2
公开(公告)日：2013-08-27
申请号：US13483789
申请日：2012-05-30
申请人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
发明人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
IPC分类号： G11B15/087 , G11B5/584
CPC分类号： G11B5/56 , G11B5/00817 , G11B5/584 , G11B15/602 , G11B20/10388 , G11B2220/93
摘要： In one embodiment, a method includes sensing a servo sensor while a longitudinal tape is moved past a magnetic head, 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; transitioning from a write state to a monitor state when the determined position error is greater than a threshold error value; transitioning from the monitor state to a stop write state when the determined position error is greater than the threshold error value for a first predetermined period; and transitioning from the monitor state to the write state when the determined position error is less than the threshold error value for a second predetermined period.
摘要翻译：在一个实施例中，一种方法包括在纵向带移动通过磁头时感测伺服传感器，确定磁头与与至少一个限定的伺服磁道有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; 当所确定的位置误差大于阈值误差值时，从写状态转换到监视状态; 当所确定的位置误差大于所述阈值误差值时，从所述监视状态转换到停止写入状态; 以及当所确定的位置误差小于第二预定周期的阈值误差值时，从监视状态转换到写入状态。

8. 发明授权

US08760788B2 System and computer program product for fast recovery to a write state 失效
标题翻译：系统和计算机程序产品可快速恢复到写状态
公开(公告)号：US08760788B2
公开(公告)日：2014-06-24
申请号：US13152225
申请日：2011-06-02
申请人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
发明人： Nhan X. Bui , Reed A. Hancock , Tomoko Taketomi
IPC分类号： G11B15/087 , G11B5/584
CPC分类号： G11B5/56 , G11B5/00817 , G11B5/584 , G11B15/602 , G11B20/10388 , G11B2220/93
摘要： In one embodiment, a tape drive system includes a magnetic head having at least one servo sensor for track-following at least one defined servo track of a longitudinal tape, a tape motion controller configured to move the longitudinal tape past the magnetic head, a compound actuator configured to translate the magnetic head laterally with respect to the longitudinal tape, and a control configured to track-follow the at least one defined servo track by reducing a position error between the magnetic head and a desired position, transition from a write state to a monitor state when the position error is greater than a threshold, transition from the monitor state to a stop write state when the position error is greater than the threshold for a first period, and transition from the monitor state to the write state when the position error is less than the threshold for a second period.
摘要翻译：在一个实施例中，磁带驱动系统包括具有至少一个伺服传感器的磁头，该伺服传感器跟踪至少一个所定义的纵向磁带的伺服磁道，配置成使纵向磁带移动通过磁头的磁带运动控制器，致动器被配置为相对于纵向带横向地平移磁头;以及控制器，其被配置为通过减小磁头与期望位置之间的位置误差跟踪至少一个定义的伺服轨迹，控制器从写入状态转换到当位置误差大于阈值时的监视状态，当位置误差大于第一周期的阈值时从监视状态转变到停止写入状态，以及当位置误差大于阈值时从监视状态转变到写入状态错误小于第二个周期的阈值。

9. 发明授权

US07606987B2 Apparatus and method for magnetic head control in storage accesses 失效
标题翻译：存储通道磁头控制的装置和方法
公开(公告)号：US07606987B2
公开(公告)日：2009-10-20
申请号：US11530936
申请日：2006-09-12
申请人： Tsutomu Sawa , Tomoko Taketomi
发明人： Tsutomu Sawa , Tomoko Taketomi
IPC分类号： G06F12/00
CPC分类号： G06F3/0649 , G06F3/0616 , G06F3/0676 , G06F12/02 , G11B5/40 , G11B20/1883 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
摘要： To prevent for a prolonged time period, the fixed-position floating status of a head in the control operation of a storage unit, and to prevent a decrease in the reliability due to deterioration in the properties of a storage medium, a control apparatus is described. The control apparatus relays read/write instructions for a magnetic disk unit, and includes an access-area setting unit that dynamically specifies one of a plurality of unit areas provided in a magnetic disk storage area as an access area for data, an addressing unit that updates the value of a write address in a data write request with an address that represents a physical sector corresponding to an access area in the storage area, and a valid-area changing unit that migrates data to a sector in an access area from a physical sector in another unit area corresponding to the sector at predetermined time.
摘要翻译：为了防止长时间的延长，存储单元的控制操作中的头部的固定位置浮动状态以及防止由于存储介质的性质的劣化导致的可靠性的降低，描述了控制装置。控制装置中继磁盘单元的读/写指令，并且包括：访问区域设置单元，其动态地指定设置在磁盘存储区域中的多个单位区域中的一个作为数据的访问区域;寻址单元，更新数据写入请求中的写入地址的值，该数据写入请求具有表示与存储区域中的访问区域相对应的物理扇区的地址，以及有效区域改变单元，其将数据从物理地址迁移到访问区域中的扇区在预定时间对应于扇区的另一个单位区域中的扇区。

10. 发明授权

US08780486B2 Determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit 有权
标题翻译：确定用于确定SES以调整驱动单元中的磁头的偏斜误差信号（SES）偏移量
公开(公告)号：US08780486B2
公开(公告)日：2014-07-15
申请号：US13545570
申请日：2012-07-10
申请人： Nhan X. Bui , Angeliki Pantazi , Tomoko Taketomi , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Angeliki Pantazi , Tomoko Taketomi , Kazuhiro Tsuruta
IPC分类号： G11B5/00 , G11B5/584
CPC分类号： G11B5/588 , G11B5/584 , G11B20/10009 , G11B20/10305 , G11B20/10398 , G11B2220/90
摘要： Provided are a computer program product, system, and method for determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit. A determination is made of a first difference in a first orientation with respect to a direction of movement of the recordable storage media based on first and second position information read by first and second servo read elements on a first head. A determination is made of a second difference in a second orientation with respect to the direction of movement of the recordable storage media based on third and fourth position information read by the first servo read element and a third servo read element on a second head. An offset, calculated based on the determined first and second difference, is used to generate an error signal to adjust the first and second heads.
摘要翻译：提供了一种用于确定用于确定SES以调整驱动单元中的磁头的偏斜误差信号（SES）偏移的计算机程序产品，系统和方法。基于在第一头上的第一和第二伺服读取单元读取的第一和第二位置信息，确定相对于可记录存储介质的移动方向的第一方位的第一差异。基于由第一伺服读取元件读取的第三和第四位置信息和第二头上的第三伺服读取元件，确定相对于可记录存储介质的移动方向的第二取向的第二差异。基于所确定的第一和第二差异计算的偏移量用于产生误差信号以调整第一和第二磁头。

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