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1. 发明授权

US08139312B2 Timing alternative intervals within a timing based servo band 有权
标题翻译：基于定时的伺服带内的定时替代间隔
公开(公告)号：US08139312B2
公开(公告)日：2012-03-20
申请号：US12716037
申请日：2010-03-02
申请人： Nhan Xuan Bui , Giovanni Cherubini , Reed Alan Hancock , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Giovanni Cherubini , Reed Alan Hancock , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B5/584
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。

2. 发明授权

US08139302B2 Detecting a periodic sequence of servo signals 失效
标题翻译：检测伺服信号的周期性序列
公开(公告)号：US08139302B2
公开(公告)日：2012-03-20
申请号：US12815234
申请日：2010-06-14
申请人： Nhan X. Bui , Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Kazuhiro Tsuruta
发明人： Nhan X. Bui , Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Kazuhiro Tsuruta
IPC分类号： G11B5/09
CPC分类号： G11B20/1407 , G11B5/584 , G11B20/1492 , G11B2020/1284 , G11B2020/1484 , G11B2220/90
摘要： A system and method are disclosed for detecting a periodic sequence. A value detector module detects a plurality of values of a periodic sequence. In one embodiment, a transformation module transforms the plurality of values into transformed values. A confinement module confines the values to a limited set of confined values. A correlation module correlates the confined values with a plurality of instances of the periodic sequence. In addition, a selection module selects an instance of the periodic sequence with the highest correlation to the confined values as an observed periodic sequence.
摘要翻译：公开了用于检测周期性序列的系统和方法。值检测器模块检测周期性序列的多个值。在一个实施例中，变换模块将多个值转换为变换值。限制模块将值限制为有限的一组限制值。相关模块将约束值与周期性序列的多个实例相关联。此外，选择模块选择具有与限定值的最高相关性的周期性序列的实例作为观察到的周期性序列。

3. 发明授权

US08107186B2 Determination of timing based servo pattern type 失效
标题翻译：基于定时的伺服模式类型的确定
公开(公告)号：US08107186B2
公开(公告)日：2012-01-31
申请号：US12776944
申请日：2010-05-10
申请人： Nhan Xuan Bui , Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
IPC分类号： G11B21/02 , G11B5/584 , G11B5/09
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。

4. 发明申请

US20110306188A1 MANUFACTURING METHOD OF SILICON CARBIDE SEMICONDUCTOR DEVICE 审中-公开
标题翻译：碳化硅半导体器件的制造方法
公开(公告)号：US20110306188A1
公开(公告)日：2011-12-15
申请号：US13155662
申请日：2011-06-08
申请人： Jun KAWAI , Nobuyuki KATO , Kazuhiro TSURUTA
发明人： Jun KAWAI , Nobuyuki KATO , Kazuhiro TSURUTA
IPC分类号： H01L21/20
CPC分类号： H01L29/66068 , H01L21/0485 , H01L21/268 , H01L29/1608 , H01L29/45 , H01L29/7828
摘要： In a manufacturing method of a silicon carbide semiconductor device, a semiconductor substrate made of single crystal silicon carbide is prepared, an amorphous layer is formed on a portion of the semiconductor substrate where an electrode is to be formed, a metal layer is formed on the amorphous layer, and the electrode including the metal layer and a silicide layer is formed by irradiating the metal layer with a laser light in such a manner that a part of the metal layer reacts with the amorphous layer and forms the silicide layer.
摘要翻译：在碳化硅半导体器件的制造方法中，制备由单晶碳化硅制成的半导体衬底，在要形成电极的半导体衬底的一部分上形成非晶层，在其上形成金属层非晶层，并且包括金属层和硅化物层的电极通过以激光照射金属层而形成，使得金属层的一部分与非晶层反应并形成硅化物层。

5. 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。

6. 发明申请

US20110216434A1 TIMING ALTERNATIVE INTERVALS WITHIN A TIMING BASED SERVO BAND 有权
标题翻译：基于时序的伺服带中的时序替代间隔
公开(公告)号：US20110216434A1
公开(公告)日：2011-09-08
申请号：US12716037
申请日：2010-03-02
申请人： NHAN X. BUI , GIOVANNI CHERUBINI , REED A. HANCOCK , JENS JELITTO , KAZUHIRO TSURUTA
发明人： NHAN X. BUI , GIOVANNI CHERUBINI , REED A. HANCOCK , JENS JELITTO , KAZUHIRO TSURUTA
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。

7. 发明授权

US07957088B1 Track compensation and skew compensation for 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的履带补偿和偏斜补偿
公开(公告)号：US07957088B1
公开(公告)日：2011-06-07
申请号：US12716200
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, where each channel receives a signal from a servo reader of a magnetic head. The system also includes logic for estimating a tape velocity, logic for determining a first and second time instant representing a time at which a flag is generated by a related servo channel, logic for determining a first and second correction term representing a time difference between a time at which a peak of a correlation signal and a time at which the flag occur, logic for calculating a skew error estimate based on a reference shift value associated with a servo band pair being spanned by a head module, and logic for applying a control signal including a skew correction that corresponds to the calculated skew error estimate to the skew-following loop. Other systems and methods are disclosed as well.
摘要翻译：根据一个实施例，系统包括多个同步伺服通道，其中每个通道接收来自磁头的伺服读取器的信号。该系统还包括用于估计磁带速度的逻辑，用于确定表示由相关伺服通道产生标志的时间的第一和第二时刻的逻辑，用于确定表示第一和第二校正项的逻辑，相关信号的峰值和标志出现的时间的时间，用于基于与头模块跨越的伺服带对相关联的参考移位值计算偏斜误差估计的逻辑，以及用于施加控制的逻辑信号包括对应于所计算的偏斜误差估计到偏斜跟踪环路的偏斜校正。还公开了其它系统和方法。

8. 发明申请

US20110013313A1 METHOD AND APPARATUS TO SET A WRAP ANGLE OF A READ/WRITE HEAD 失效
标题翻译：设置读/写头的写入角度的方法和装置
公开(公告)号：US20110013313A1
公开(公告)日：2011-01-20
申请号：US12505439
申请日：2009-07-17
申请人： NHAN XUAN BUI , REED ALAN HANCOCK , ROBERT ALLEN HUTCHINS , EIJI OGURA , KAZUHIRO TSURUTA
发明人： NHAN XUAN BUI , REED ALAN HANCOCK , ROBERT ALLEN HUTCHINS , EIJI OGURA , KAZUHIRO TSURUTA
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。

9. 发明申请

US20100315739A1 APPARATUS AND METHOD TO ADJUST THE ORIENTATION OF A READ HEAD TO CORRECT FOR DYNAMIC SKEW 有权
标题翻译：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。

10. 发明授权

US07813077B2 Apparatus, system, and method for detecting a periodic sequence of servo signals 有权
标题翻译：用于检测伺服信号的周期性序列的装置，系统和方法
公开(公告)号：US07813077B2
公开(公告)日：2010-10-12
申请号：US11469133
申请日：2006-08-31
申请人： Nhan Xuan Bui , Roy Daron Cideciyan , Robert Allen Hutchins , Thomas Mittelholzer , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Roy Daron Cideciyan , Robert Allen Hutchins , Thomas Mittelholzer , Kazuhiro Tsuruta
IPC分类号： G11B5/596
CPC分类号： G11B20/1407 , G11B5/584 , G11B20/1492 , G11B2020/1284 , G11B2020/1484 , G11B2220/90
摘要： An apparatus, system, and method are disclosed for detecting a periodic sequence. A value detector module detects a plurality of values of a periodic sequence. In one embodiment, a transformation module transforms the plurality of values into transformed values. A confinement module confines the values to a limited set of confined values. A correlation module correlates the confined values with a plurality of instances of the periodic sequence. In addition, a selection module selects an instance of the periodic sequence with the highest correlation to the confined values as an observed periodic sequence.
摘要翻译：公开了用于检测周期性序列的装置，系统和方法。值检测器模块检测周期性序列的多个值。在一个实施例中，变换模块将多个值转换为变换值。限制模块将值限制为有限的一组限制值。相关模块将约束值与周期性序列的多个实例相关联。此外，选择模块选择具有与限定值的最高相关性的周期性序列的实例作为观察到的周期性序列。

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