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81. 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。

82. 发明授权

US06937413B2 Tape servo information with superimposed data information providing servo band identification 有权
标题翻译：磁带伺服信息与叠加数据信息提供伺服带识别
公开(公告)号：US06937413B2
公开(公告)日：2005-08-30
申请号：US10638080
申请日：2003-08-08
申请人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan 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 magnetic tape having separate longitudinal servo bands of servo information with superimposed data information, the separate servo bands have selected different superimposed data information, to identify the separate servo bands for independent addressability. The servo information comprises non-parallel laterally extending transitions to indicate lateral positioning, and the selected different superimposed data information may comprise a lack thereof in portion(s) of the servo bands. Where the superimposed data information is longitudinal position information of the tape, the selected different superimposed data information may comprise different longitudinal position information of one or more servo band(s). The selected different superimposed data information may comprise a band identifier in the superimposed data information of one or more of the servo bands.
摘要翻译：在具有具有叠加数据信息的伺服信息的单独的纵向伺服带的磁带中，分离的伺服带已经选择了不同的叠加数据信息，以识别用于独立寻址能力的单独的伺服带。伺服信息包括非平行横向延伸的转换以指示横向定位，并且所选择的不同叠加数据信息可能包括在伺服带的一部分中的缺乏。在叠加数据信息是磁带的纵向位置信息的情况下，所选择的不同叠加数据信息可以包括一个或多个伺服带的不同纵向位置信息。所选择的不同的叠加数据信息可以包括一个或多个伺服带的叠加数据信息中的频带标识符。

83. 发明授权

US06239939B1 Robust detection of data modulated into a timing based servo 有权
标题翻译：对基于定时的伺服调制的数据的鲁棒检测
公开(公告)号：US06239939B1
公开(公告)日：2001-05-29
申请号：US09370256
申请日：1999-08-09
申请人： Nhan Xuan Bui , Junichi Fukuda , Glen Alan Jaquette , John Alexander Koski , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Junichi Fukuda , Glen Alan Jaquette , John Alexander Koski , Kazuhiro Tsuruta
IPC分类号： G11B5584
CPC分类号： G11B5/592 , G11B5/584
摘要： A detector and method for detecting data modulated into a timing based servo pattern prerecorded on a media, comprising shifts of pairs of non-parallel transition stripes arranged in a frame of two bursts. Timing intervals between sequential transition stripes are detected. Interval comparison logic compares selected timing intervals and indicates whether the compared intervals represent a “0”, or a “1”. First and second counters respectively increment the number of the compared intervals representing a “0” and representing a “1” in each frame. Bit comparison logic compares, for each frame, the incremented numbers representing a “0” and a “1” to a predetermined criteria and, upon one of the numbers meeting the criteria, identifies the corresponding “0” or “1” as the bit value for the frame. The bits are data comprising longitudinal position words arranged in a linear sequence. Sequence logic calculates the next sequential position word from an immediately preceding word and determines whether the detected word is in the linear sequence as a validity check, and provides the calculated word as the output. Thus, the correct position word is provided at the output even if the detected word is invalid.
摘要翻译：一种检测器和方法，用于检测被调制到在介质上预先记录的基于时序的伺服模式中的数据，包括以两个脉冲串的帧布置的非平行过渡条带对的移位。检测顺序过渡条纹之间的时序间隔。间隔比较逻辑比较所选择的定时间隔，并指示所比较的间隔是“0”还是“1”。第一和第二计数器分别增加表示“0”的比较间隔的数量，并在每一帧中表示“1”。比较比较逻辑对于每个帧将对于预定标准表示“0”和“1”的递增数字进行比较，并且在符合标准的数字之一中将相应的“0”或“1”标识为位框架的值。位是包括以线性顺序排列的纵向位置字的数据。顺序逻辑从紧前面的字计算下一个顺序位置字，并确定所检测的字是否在线性序列中作为有效性检查，并将计算出的字提供为输出。因此，即使检测到的字无效，也在输出端提供正确的位置字。

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