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1. 发明申请

US20110013312A1 METHOD AND APPARATUS TO POSITION A HEAD MODULE COMPRISING SERVO ELEMENTS AND A PLURALITY OF DATA ELEMENTS 有权
标题翻译：包含服务元素和数据元素多样性的头模块的位置的方法和装置
公开(公告)号：US20110013312A1
公开(公告)日：2011-01-20
申请号：US12505435
申请日：2009-07-17
申请人： NHAN XUAN BUI , GIOVANNI CHERUBINI , ROBERT ALLEN HUTCHINS , JENS JELITTO , KAZUHIRO TSURUTA
发明人： NHAN XUAN BUI , GIOVANNI CHERUBINI , ROBERT ALLEN HUTCHINS , JENS JELITTO , KAZUHIRO TSURUTA
IPC分类号： G11B5/596
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。

2. 发明申请

US20110007413A1 CONTROL METHOD AND APPARATUS FOR A DUAL-CHANNEL WEIGHTED LPOS COMBINING SCHEME 有权
标题翻译：双通道加权LPOS组合方案的控制方法和装置
公开(公告)号：US20110007413A1
公开(公告)日：2011-01-13
申请号：US12500490
申请日：2009-07-09
申请人： GIOVANNI CHERUBINI , ROBERT ALLEN HUTCHINS , JENS JELITTO , MELANIE JEAN SANDBERG
发明人： GIOVANNI CHERUBINI , ROBERT ALLEN HUTCHINS , JENS JELITTO , MELANIE JEAN SANDBERG
IPC分类号： G11B27/36
CPC分类号： G11B5/584 , G11B5/29
摘要： A method for monitoring a plurality of servo channels, providing a finite state machine (“FSM”) comprising a single servo channel mode and a combined servo channel mode, and moving a sequential information storage medium comprising a plurality of servo bands across a read/write head comprising a corresponding plurality of servo sensors. The method further asserts an acquisition flag by a servo channel if that servo channel is tracking a servo pattern, and asserts a bit flag by a servo channel if a new LPOS bit is decoded. If at least one acquisition flag is asserted, the method determines if a bit flag is asserted by a servo channel associated with said asserted acquisition flag, and if an acquisition flag and a bit flag are asserted by a servo channel, the method determines a relative positioning of each servo sensor with respect to an associated servo pattern.
摘要翻译：一种用于监视多个伺服信道的方法，提供包括单个伺服信道模式和组合伺服信道模式的有限状态机（“FSM”），并且将包括多个伺服带的顺序信息存储介质跨越读/ 写头包括相应的多个伺服传感器。如果伺服信道正在跟踪伺服模式，则该方法还通过伺服信道断言采集标志，如果解码了新的LPOS位，则通过伺服信道断言位标志。如果至少一个采集标志被断言，则该方法确定与所述断言获取标志相关联的伺服信道是否标志位标志，并且如果通过伺服信道确定获取标志和位标志，则该方法确定相对每个伺服传感器相对于相关伺服模式的定位。

3. 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。

4. 发明申请

US20110273793A1 DETERMINATION OF TIMING BASED SERVO PATTERN TYPE 失效
标题翻译：基于时序的伺服模式的确定
公开(公告)号：US20110273793A1
公开(公告)日：2011-11-10
申请号：US12776944
申请日：2010-05-10
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： G11B27/36
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。

5. 发明申请

US20110205657A1 SYNCHRONIZATION OF SYMMETRIC TIMING BASED SERVO BURSTS 有权
标题翻译：基于对称时序的伺服脉冲同步
公开(公告)号：US20110205657A1
公开(公告)日：2011-08-25
申请号：US12712039
申请日：2010-02-24
申请人： GIOVANNI CHERUBINI , ROBERT A. HUTCHINS , JENS JELITTO , MARK A. LANTZ
发明人： GIOVANNI CHERUBINI , ROBERT A. HUTCHINS , JENS JELITTO , MARK A. LANTZ
IPC分类号： G11B5/09 , G11B5/584
CPC分类号： G11B5/584 , G11B5/09
摘要： Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected bits. For example, servo frames are arranged with four servo bursts with an equal number of servo stripes in each burst, the servo frames comprising two symmetric sub-frames, each sub-frame comprising two bursts of servo stripes that are parallel to each other within a burst, and the bursts are non-parallel with respect to each other; each servo burst is arranged to comprise at least one reference servo stripe; and each servo burst is arranged to comprise at least one shifted servo stripe, wherein the shift is in the same longitudinal direction with respect to at least one reference servo stripe for each burst of a frame and the opposite longitudinal direction for bursts of sequentially adjacent frames.
摘要翻译：伺服帧的基于时序的伺服脉冲串通过移位所选位来同步，其中帧被布置为在帧的每个突发中具有相同数量的伺服条带对称。例如，伺服帧被布置成具有在每个突发中具有相等数量的伺服条带的四个伺服脉冲串，伺服帧包括两个对称子帧，每个子帧包括在一个内部的彼此平行的两个脉冲串的伺服条带突发，并且突发是相互不平行的; 每个伺服脉冲串被布置成包括至少一个参考伺服条纹; 并且每个伺服脉冲串被布置成包括至少一个移位的伺服条带，其中相对于帧的每个脉冲串相对于至少一个参考伺服条带的移位在相同的纵向方向上，并且相反的纵向方向用于顺序相邻帧的突发。

6. 发明申请

US20080259484A1 READ CHANNEL APPARATUS FOR ASYNCHRONOUS SAMPLING AND SYNCHRONOUS EQUALIZATION 有权
标题翻译：阅读通道设备用于异步采样和同步均衡
公开(公告)号：US20080259484A1
公开(公告)日：2008-10-23
申请号：US12166136
申请日：2008-07-01
申请人： EVANGELOS S. ELEFTHERIOU , ROBERT A. HUTCHINS , GLEN A. JAQUETTE , JENS JELITTO , SEDAT OELOER
发明人： EVANGELOS S. ELEFTHERIOU , ROBERT A. HUTCHINS , GLEN A. JAQUETTE , JENS JELITTO , SEDAT OELOER
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055
摘要： A read channel and method using that read channel are disclosed. The read channel comprises an analog to digital converter which asynchronously samples at a fixed rate an analog signal formed by reading a data track, where that data track was written to a data storage medium at a symbol rate and an interpolator interconnected with the analog to digital converter. The read channel further comprises a fractionally-spaced equalizer, where the interpolator provides an interpolated signal to the fractionally-spaced equalizer at an interpolation rate, where that interpolation rate is greater than the symbol rate. The fractionally-spaced equalizer forms a synchronous equalized signal. The read channel further comprises a gain control module interconnected with the fractionally-spaced equalizer, and a sequence detector interconnected with the gain control module.
摘要翻译：公开了使用该读通道的读通道和方法。读通道包括模数转换器，其以固定速率异步采样通过读取数据轨道形成的模拟信号，其中数据轨道以符号速率写入数据存储介质，并且与模数转换器互连的内插器转换器。读通道还包括分数间隔的均衡器，其中内插器以内插速率向分数间隔的均衡器提供内插信号，其中该内插速率大于符号率。分数间隔均衡器形成同步均衡信号。读通道还包括与分数间隔均衡器互连的增益控制模块，以及与增益控制模块互连的序列检测器。

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