公开(公告)号：US20070187540A1

公开(公告)日：2007-08-16

申请号：US11674615

申请日：2007-02-13

申请人： Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B15/32

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。

公开(公告)号：US20050161545A1

公开(公告)日：2005-07-28

申请号：US10765789

申请日：2004-01-26

申请人： Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B15/093

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。

公开(公告)号：US20050041320A1

公开(公告)日：2005-02-24

申请号：US10645059

申请日：2003-08-21

申请人： Nhan Bui ,  Randy Inch ,  Junichi Fukuda ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Junichi Fukuda ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B15/46 ,  G11B15/54 ,  G11B27/10 ,  G11B27/13 ,  G11B15/18

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.

公开(公告)号：US07110212B2

公开(公告)日：2006-09-19

申请号：US11012950

申请日：2004-12-15

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B5/596

CPC分类号： G11B5/584 ,  G11B15/688

摘要： Disclosed are a system, a method, and article of manufacture to provide a compensator for a synchronous sampling servo control system.

摘要翻译： 公开了一种为同步采样伺服控制系统提供补偿器的系统，方法和制品。

公开(公告)号：US20060245104A1

公开(公告)日：2006-11-02

申请号：US11477001

申请日：2006-06-28

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B19/02

CPC分类号： G11B15/688 ,  G11B5/584

摘要： Disclosed are a system, a method, and article of manufacture to provide a velocity adaptive compensator for a synchronous sampling servo control system.

摘要翻译： 公开了一种用于为同步采样伺服控制系统提供速度自适应补偿器的系统，方法和制品。

公开(公告)号：US20060126215A1

公开(公告)日：2006-06-15

申请号：US11012952

申请日：2004-12-15

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B5/584

CPC分类号： G11B15/688 ,  G11B5/584

摘要： Disclosed are a system, a method, and article of manufacture to provide a velocity adaptive compensator for a synchronous sampling servo control system.

摘要翻译： 公开了一种用于为同步采样伺服控制系统提供速度自适应补偿器的系统，方法和制品。

公开(公告)号：US07362537B2

公开(公告)日：2008-04-22

申请号：US11477001

申请日：2006-06-28

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B5/584

CPC分类号： G11B15/688 ,  G11B5/584

摘要： Disclosed are a system, a method, and article of manufacture to provide a velocity adaptive compensator for a synchronous sampling servo control system.

摘要翻译： 公开了一种用于为同步采样伺服控制系统提供速度自适应补偿器的系统，方法和制品。

公开(公告)号：US07265935B2

公开(公告)日：2007-09-04

申请号：US11012952

申请日：2004-12-15

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B5/584

CPC分类号： G11B15/688 ,  G11B5/584

摘要： Disclosed are a system, a method, and article of manufacture to provide a velocity adaptive compensator for a synchronous sampling servo control system.

摘要翻译： 公开了一种用于为同步采样伺服控制系统提供速度自适应补偿器的系统，方法和制品。

公开(公告)号：US20060126214A1

公开(公告)日：2006-06-15

申请号：US11012950

申请日：2004-12-15

申请人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC分类号： G11B5/584

CPC分类号： G11B5/584 ,  G11B15/688

摘要： Disclosed are a system, a method, and article of manufacture to provide a compensator for a synchronous sampling servo control system.

公开(公告)号：US20050280921A1

公开(公告)日：2005-12-22

申请号：US11215137

申请日：2005-08-29

申请人： Nhan Bui ,  James Eaton ,  Junichi Fukuda ,  Glen Jaquette ,  Eiji Ogura ,  Mark Taylor ,  Kazuhiro Tsuruta

发明人： Nhan Bui ,  James Eaton ,  Junichi Fukuda ,  Glen Jaquette ,  Eiji Ogura ,  Mark Taylor ,  Kazuhiro Tsuruta

IPC分类号： G11B5/008 ,  G11B5/584 ,  G11B5/78 ,  G11B5/09

CPC分类号： G11B5/584 ,  G11B5/00813 ,  G11B5/78

摘要： In a tape having separate servo bands of patterns positioned laterally across the tape, the patterns of a separate servo band have at least one differentiating characteristic with respect to patterns of another of the separate servo bands. The differentiating characteristic allows identification of the separate servo bands. For example, the patterns of a separate servo band have differing azimuthal orientations of detectable transitions with respect to another servo band, such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to another servo band. In another, variations are made in the number of the detectable transitions of patterns with respect to the patterns of another servo band.