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公开(公告)号：US6075666A
公开(公告)日：2000-06-13
申请号：US803665
申请日：1997-02-21
CPC分类号： G11B20/1202 , G11B27/3027 , G11B5/5508 , G11B5/584 , G11B5/78
摘要： A servo stripe pattern for determining the longitudinal position of the tape with respect to the tape head. A data field on each frame of the servo pattern includes a digital one or a zero. An adjacent series of data fields are arranged in a predetermined sequence defining synchronization and position count fields. The position count field allows the tape controller to accurately determine where, along the length of the tape, the tape head is currently positioned.
摘要翻译： 用于确定带相对于磁带头的纵向位置的伺服条纹图案。 伺服图案的每个帧上的数据字段包括数字或零。 相邻的一系列数据字段以预定的顺序排列，定义同步和位置计数字段。 位置计数字段允许磁带控制器准确地确定磁带头当前位于磁带长度的哪里。
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2.发明授权Servo frame edge detection for tape servo pattern with synchronization field 失效带同步字段的磁带伺服模式的伺服帧边缘检测
公开(公告)号：US5973869A
公开(公告)日：1999-10-26
申请号：US803666
申请日：1997-02-21
IPC分类号： G11B5/584 , G11B15/087
CPC分类号： G11B5/584 , G11B15/087
摘要： A method for detecting a frame edge in a servo stripe on a length of magnetic tape. The method includes converting an analog signal to a digital signal and detecting a change in digital signal frequency at a frame edge. A detection signal is generated in response to the detected frequency change.
摘要翻译： 一种在一段磁带上检测伺服条带中的边缘的方法。 该方法包括将模拟信号转换为数字信号，并检测帧边缘处数字信号频率的变化。 响应于检测到的频率变化产生检测信号。
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3.发明授权Method for determining longitudinal position on a magnetic tape having an embedded position count field 失效用于确定具有嵌入位置计数场的磁带上的纵向位置的方法
公开(公告)号：US5920439A
公开(公告)日：1999-07-06
申请号：US804446
申请日：1997-02-21
CPC分类号： G11B23/36 , G11B27/3027 , G11B2220/90 , G11B5/00817 , G11B5/584
摘要： A method for determining the longitudinal position of a length of magnetic tape with respect to the tape head. A data field on each frame of the servo stripe includes a digital one or a zero. An adjacent series of data fields are arranged in a predetermined sequence defining synchronization and position count fields. Identifying the position count field allows the tape controller to accurately determine where, along the length of the tape, the tape head is currently positioned.
摘要翻译： 一种用于确定一段磁带相对于磁带头的纵向位置的方法。 伺服条带的每个帧上的数据字段包括一个数字或零。 相邻的一系列数据字段以预定的顺序排列，定义同步和位置计数字段。 识别位置计数字段允许磁带控制器准确地确定磁带头当前所在的磁带长度。
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公开(公告)号：US09916860B2
公开(公告)日：2018-03-13
申请号：US13800026
申请日：2013-03-13
申请人： Darryl Wayne Yeakley , William J. Vanderheyden , Steven Gregory Trabert , Oracle International Corporation
CPC分类号： G11B21/103 , G11B5/4893 , G11B5/56 , G11B5/584
摘要： A device for recording and/or reading data to and/or from a magnetic tape includes a read/write head which has a first device set including a first plurality of magnetic data write and/or read elements and a second device set including a second plurality of magnetic data write and/or read elements. The device also includes a lateral positioning actuator and an azimuth actuator. The lateral positioning actuator and azimuth actuator are used together to position both device sets on the magnetic tape. The lateral positioning actuator laterally positions the read/write head such that during write and/or read operations the first and second pluralities of magnetic data write and/or read elements align laterally to first and second pluralities of recordable and/or readable data tracks on the magnetic tape. The azimuth actuator rotates the read/write head about an azimuthal angle. such that the elements align to lateral spacings.
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公开(公告)号：US07551380B2
公开(公告)日：2009-06-23
申请号：US11861960
申请日：2007-09-26
CPC分类号： G11B5/584
摘要： A tape has a component of magnetization pointing out of a plane of the tape. To write a pulse of a servo pattern to the tape, the tape is passed over a write head with a conventional write gap. Current having a fixed polarity is provided to the write head. Once the current achieves a desired value, the current is no longer provided to the write head.
摘要翻译： 磁带具有指向磁带平面的磁化分量。 为了将伺服模式的脉冲写入磁带，磁带以常规的写入间隙通过写入头。 具有固定极性的电流被提供给写入头。 一旦电流达到期望值，电流就不再提供给写入头。
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公开(公告)号：US6023385A
公开(公告)日：2000-02-08
申请号：US804445
申请日：1997-02-21
IPC分类号： G11B5/584 , G11B15/087 , G11B21/10 , G11B27/30 , G11B5/09
CPC分类号： G11B15/087 , G11B21/103 , G11B27/30 , G11B5/584
摘要： A magnetic tape servo pattern with different frequency signals to define the frame boundary. A significantly different frequency field is used to signal the transition from one frame to the next.
摘要翻译： 具有不同频率信号的磁带伺服模式来定义帧边界。 使用明显不同的频率域来表示从一帧到下一帧的转换。
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公开(公告)号：US6018429A
公开(公告)日：2000-01-25
申请号：US216397
申请日：1998-12-18
CPC分类号： G11B27/3027 , G11B20/1204 , G11B5/5926
摘要： A magnetic tape servo pattern including track identification. Information from a track identification area intersecting one or more tracks on each frame in combination with information identifying the track as odd or even, is used to uniquely identify the track.
摘要翻译： 磁带伺服模式包括磁道识别。 来自与每个帧上的一个或多个轨道相交的轨道识别区域的信息与将轨道识别为奇数或偶数的信息相结合用于唯一地识别轨道。
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公开(公告)号：US20090080108A1
公开(公告)日：2009-03-26
申请号：US11861960
申请日：2007-09-26
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A tape has a component of magnetization pointing out of a plane of the tape. To write a pulse of a servo pattern to the tape, the tape is passed over a write head with a conventional write gap. Current having a fixed polarity is provided to the write head. Once the current achieves a desired value, the current is no longer provided to the write head.
摘要翻译： 磁带具有指向磁带平面的磁化分量。 为了将伺服模式的脉冲写入磁带，磁带以常规的写入间隙通过写入头。 具有固定极性的电流被提供给写入头。 一旦电流达到期望值，电流就不再提供给写入头。
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9.发明授权公开(公告)号：US06898036B2
公开(公告)日：2005-05-24
申请号：US10044773
申请日：2001-12-31
CPC分类号： G11B5/584
摘要： A system and method for recovering from write errors during writing of a moving storage medium suspend write current while allowing the storage medium to continue moving. The system and method continue to format data for writing while the write current is suspended and resequence the data for subsequent storage. Information is recorded to distinguish previously written data from current data with error correction pointers adjusted accordingly. Write errors may be detected in a track following streaming tape system based on data errors from a read back check or based on positioning errors of a read/write head servo system, for example. By allowing the storage medium to continue moving through the error event, the system and method improve speed, capacity utilization, and throughput of the storage and retrieval process.
摘要翻译： 一种用于在写入移动存储介质期间从写入错误中恢复的系统和方法暂停写入电流，同时允许存储介质继续移动。 当写入电流被暂停时，系统和方法继续格式化写入数据，并重新排列数据以供后续存储。 记录信息以将先前写入的数据与当前数据区分开，并相应地调整误差校正指针。 例如，可以基于来自回读检查的数据错误或基于读/写头伺服系统的定位误差的流式磁带系统之后的轨道中检测到写入错误。 通过允许存储介质继续移动通过错误事件，系统和方法提高了存储和检索过程的速度，容量利用率和吞吐量。
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10.发明授权
公开(公告)号：US6166870A
公开(公告)日：2000-12-26
申请号：US373171
申请日：1999-08-12
CPC分类号： G11B5/3967 , G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/488 , G11B5/4893 , G11B5/584
摘要： A method for writing a servo pattern onto a length of magnetic tape includes writing a first frequency signal onto a first portion along the length of the tape, and writing a second frequency signal by simultaneously writing a plurality of spaced apart predetermined shapes. The predetermined spaced apart shapes are achieved by writing the second frequency using a writer having a split top pole. Passing the tape over the spaced apart top pole elements allows the writer to simultaneously write the plurality of spaced apart shapes. The tape can then be passed over a read module.
摘要翻译： 一种用于将伺服模式写入磁带长度的方法包括：将第一频率信号沿着磁带的长度写入第一部分，以及通过同时写入多个间隔开的预定形状来写入第二频率信号。 通过使用具有分离顶极的写入器写入第二频率来实现预定间隔开的形状。 将带穿过间隔开的顶极元件允许写入器同时写入多个间隔开的形状。 然后，磁带可以通过读取模块。
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