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1.发明申请MAGNETIC MEDIA FORMATTED WITH AN INTEGRATED THIN FILM SUBGAP SUBPOLE STRUCTURE FOR ARBITRARY GAP PATTERN MAGNETIC RECORDING HEAD 审中-公开磁性介质，用于形成用于横截面图形磁记录头的集成薄膜底片结构公开(公告)号：US20090147399A1
公开(公告)日：2009-06-11
申请号：US12268076
申请日：2008-11-10
CPC分类号： G11B5/3103 , G11B5/3163 , G11B5/3173 , G11B5/3179 , G11B5/3183 , G11B5/584
摘要： An arbitrary gap thin film magnetic recording head is fabricated by forming a substrate based on traditional vertical planar thin film head wafer technology which is designed to produce an integrated subgap and subpole substrate structure. The wafer is then processed into row bars to reveal, in a plane parallel to the transducing direction of the medium, the subgap and subpoles at the surface of the row bar and to bring the structure to a certain coil depth or gap depth. A flat or cylindrical contour may be utilized.This thin film subgap row bar is taken through a film deposition or growth process that deposits the magnetic film on a plane perpendicular to the wafer plane, horizontal planar processing, forming a surface film recording head where an arbitrary gap structure can be made in-between the subpoles and generally directly on top of the subgap. The surface thin film is deposited and patterned on the tape bearing surface of the head to optimize various element configurations, gap patterns and head-to-tape medium contact.An arbitrary gap thin film magnetic recording head is manufactured using two major thin film processing planes, one orthogonal to the other, the first major plane is wafer level and the second major plane is sub-wafer level and perpendicular to the first. The first major plane of processing defines the magnetically active substrate including coils, subgap and subpole members. The second major plane of processing defines the surface film which transmits the flux from the subpoles to the gap features contained in the surface film.This resulting structure is a recording head that is wired to the servo system electronics and will format the tape with the arbitrary gap pattern.
摘要翻译： 通过基于传统的垂直平面薄膜头晶片技术形成基板来制造任意的间隙薄膜磁记录头，该技术被设计成产生集成的子间隙和亚极基底结构。 然后将晶片加工成行条，以在平行于介质的转换方向的平面中显示在行条的表面处的子间隙和亚极，并使结构达到一定的线圈深度或间隙深度。 可以使用平坦或圆柱形的轮廓。 该薄膜底隙排条通过在垂直于晶片平面的平面上沉积磁膜的膜沉积或生长工艺，水平平面处理，形成表面胶片记录头，其中可以在其间形成任意间隙结构 子笔和通常直接在子间隙的顶部。 表面薄膜被沉积并图案化在头部的带状表面上，以优化各种元件构造，间隙图案和头对带介质接触。 使用两个主要的薄膜处理平面制造任意的间隙薄膜磁记录头，一个正交于另一个的第一主平面是晶片级，第二主平面是次晶片级并垂直于第一主平面。 第一主要处理平面定义了包括线圈，子间隙和子极构件的磁性活性衬底。 第二主要处理平面限定了将来自亚极的磁通传递到包含在表面膜中的间隙特征的表面膜。 这种结构的结构是连接到伺服系统电子设备的记录头，并且将以任意的间隙图形来格式化磁带。
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公开(公告)号：US07393066B2
公开(公告)日：2008-07-01
申请号：US11510941
申请日：2006-08-28
CPC分类号： G11B5/00813 , G11B5/29 , G11B5/584 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49128
摘要： Methods and systems for data recording and reading for increasing overall tape data storage density, especially for data written in azimuth style. The principles of the invention provide servo formats and systems that allow accurate on track guidance for higher density applications and that are less sensitive to off track error. Preferred embodiments of the invention offer servo formats and systems of the invention that allows positive track and group identification at the beginning, end, and optionally periodically along the length of a tape.
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3.发明授权Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape 失效伺服系统，伺服头，用于数据存储的伺服模式，特别用于磁记录磁带中的读，写和记录公开(公告)号：US07391587B2
公开(公告)日：2008-06-24
申请号：US11510940
申请日：2006-08-28
CPC分类号： G11B5/00813 , G11B5/29 , G11B5/584 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49128
摘要： Methods and systems for data recording and reading for increasing overall tape data storage density, especially for data written in azimuth style. The principles of the invention provide servo formats and systems that allow accurate on track guidance for higher density applications and that are less sensitive to off track error. Preferred embodiments of the invention offer servo formats and systems of the invention that allows positive track and group identification at the beginning, end, and optionally periodically along the length of a tape.
摘要翻译： 用于数据记录和读取的方法和系统，用于提高整个磁带数据存储密度，特别是对于以方位角写入的数据。 本发明的原理提供伺服格式和系统，其允许针对较高密度应用的准确的跟踪引导并且对偏离轨道误差较不敏感。 本发明的优选实施例提供本发明的伺服格式和系统，其允许沿着磁带的长度在开始，结束和可选地周期性地进行正轨迹和组识别。
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4.发明授权公开(公告)号：US07283317B2
公开(公告)日：2007-10-16
申请号：US10768719
申请日：2004-01-30
CPC分类号： G11B5/00813
摘要： The present invention relates to direct current (“DC”) pre-erasing servo channels of a magnetic tape prior to writing servo data in a servo channel. The present invention particularly relates to those servo recordings which were written with a uni-polar current waveform. The DC pre-erase is performed using a uni-polar direct current of a polarity that is opposite to the polarity of the direct current used to write the servo data. This pre-erase may be done with one or more heads. Also, as will be described, the pre-erase of a servo channel and writing to a servo channel may be done by making two passes over a single head or by using two or more heads to perform both steps. Also, it is within the scope of the present invention to have the heads mounted on a single mount or have the heads on separate mounts and on separate tape decks.
摘要翻译： 本发明涉及在伺服信道中写入伺服数据之前磁带的直流（“DC”）预擦除伺服通道。 本发明特别涉及用单极电流波形写入的那些伺服记录。 使用与用于写入伺服数据的直流电的极性相反的极性的单极直流电进行直流预擦除。 这种预擦除可以用一个或多个头完成。 此外，如将要描述的那样，可以通过在单个头上进行两次通过或者通过使用两个或更多个头执行两个步骤来完成对伺服信道的预擦除和对伺服信道的写入。 此外，将头部安装在单个安装座上或将头部安装在单独的安装件上以及在单独的磁带机上也在本发明的范围内。
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公开(公告)号：US07832084B2
公开(公告)日：2010-11-16
申请号：US11510902
申请日：2006-08-28
CPC分类号： G11B5/00813 , G11B5/29 , G11B5/584 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49128
摘要： A method of recording servo information includes writing servo information in a data storage medium using a compound magnetic recording head. The compound magnetic recording head has a substrate including first and second magnetically permeable substrate portions and a substantially non-magnetic member interposed between the first and second magnetically permeable substrate portions. A magnetically permeable layer is provided over the first and second magnetically permeable substrate portions of the substrate and includes first and second writing gap features associated with the first and second substrate portions. The writing gap features are formed using a patterned mask layer over the magnetically permeable layer, wherein the patterned mask layer comprises first and second patterned gap features corresponding to the first and second writing gap features.
摘要翻译： 记录伺服信息的方法包括使用复合磁记录头将伺服信息写入数据存储介质。 复合磁记录头具有包括第一和第二导磁基底部分的基底和介于第一和第二导磁基底部分之间的基本非磁性部件。 导磁层设置在衬底的第一和第二导磁衬底部分之上，并且包括与第一和第二衬底部分相关联的第一和第二写入间隙特征。 写入间隙特征使用在导磁层上的图案化掩模层形成，其中图案化掩模层包括对应于第一和第二写入间隙特征的第一和第二图案化间隙特征。
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6.发明申请公开(公告)号：US20100284105A1
公开(公告)日：2010-11-11
申请号：US12773544
申请日：2010-05-04
CPC分类号： G11B5/00813
摘要： The present invention relates to direct current (“DC”) pre-erasing servo channels of a magnetic tape prior to writing servo data in a servo channel. The present invention particularly relates to those servo recordings which were written with a uni-polar current waveform. The DC pre-erase is performed using a uni-polar direct current of a polarity that is opposite to the polarity of the direct current used to write the servo data. This pre-erase may be done with one or more heads. Also, as will be described, the pre-erase of a servo channel and writing to a servo channel may be done by making two passes over a single head or by using two or more heads to perform both steps. Also, it is within the scope of the present invention to have the heads mounted on a single mount or have the heads on separate mounts and on separate tape decks.
摘要翻译： 本发明涉及在伺服信道中写入伺服数据之前磁带的直流（“DC”）预擦除伺服通道。 本发明特别涉及用单极电流波形写入的那些伺服记录。 使用与用于写入伺服数据的直流电的极性相反的极性的单极直流电进行直流预擦除。 这种预擦除可以用一个或多个头完成。 此外，如将要描述的那样，可以通过在单个头上进行两次通过或者通过使用两个或更多个头执行两个步骤来完成伺服通道的预擦除和对伺服通道的写入。 此外，将头部安装在单个安装座上或将头部安装在单独的安装件上以及在单独的磁带机上也在本发明的范围内。
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7.发明申请公开(公告)号：US20090067087A1
公开(公告)日：2009-03-12
申请号：US12271203
申请日：2008-11-14
IPC分类号： G11B5/325
CPC分类号： G11B5/00813
摘要： The present invention relates to direct current (“DC”) pre-erasing servo channels of a magnetic tape prior to writing servo data in a servo channel. The present invention particularly relates to those servo recordings which were written with a uni-polar current waveform. The DC pre-erase is performed using a uni-polar direct current of a polarity that is opposite to the polarity of the direct current used to write the servo data. This pre-erase may be done with one or more heads. Also, as will be described, the pre-erase of a servo channel and writing to a servo channel may be done by making two passes over a single head or by using two or more heads to perform both steps. Also, it is within the scope of the present invention to have the heads mounted on a single mount or have the heads on separate mounts and on separate tape decks.
摘要翻译： 本发明涉及在伺服信道中写入伺服数据之前磁带的直流（“DC”）预擦除伺服通道。 本发明特别涉及用单极电流波形写入的那些伺服记录。 使用与用于写入伺服数据的直流电的极性相反的极性的单极直流电进行直流预擦除。 这种预擦除可以用一个或多个头完成。 此外，如将要描述的那样，可以通过在单个头上进行两次通过或者通过使用两个或更多个头执行两个步骤来完成对伺服信道的预擦除和对伺服信道的写入。 此外，将头部安装在单个安装座上或将头部安装在单独的安装件上以及在单独的磁带机上也在本发明的范围内。
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公开(公告)号：US07301716B2
公开(公告)日：2007-11-27
申请号：US10791675
申请日：2004-03-02
CPC分类号： G11B5/584
摘要： The present invention relates to a method of synthesizing the slanted transitions in a time based servo pattern using servo write gaps that are perpendicular to the tape motion. The present invention particularly relates to a method of writing a servo pattern on magnetic tape so as to minimize errors in the servo pattern. The slanted transitions in a time-based servo pattern are synthesized using servo write gaps that are perpendicular to the tape motion. The slanted portions of the write gaps are synthesized by a series of short segmented vertical and horizontal segments. In so minimizing errors, distortion in the reading and/or writing of the data tracks can be prevented.
摘要翻译： 本发明涉及使用垂直于磁带运动的伺服写入间隙来合成基于时间的伺服模式中的倾斜转变的方法。 本发明特别涉及一种将伺服模式写在磁带上以使伺服模式中的错误最小化的方法。 基于时间的伺服模式中的倾斜转换是使用垂直于磁带运动的伺服写入间隙来合成的。 写入间隙的倾斜部分由一系列短分段的垂直和水平段合成。 在这样最小化误差的情况下，可以防止读取和/或写入数据轨道的失真。
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公开(公告)号：US07576949B2
公开(公告)日：2009-08-18
申请号：US11838006
申请日：2007-08-13
CPC分类号： G11B5/00813
摘要： The present invention relates to direct current (“DC”) pre-erasing servo channels of a magnetic tape prior to writing servo data in a servo channel. The present invention particularly relates to those servo recordings which were written with a uni-polar current waveform. The DC pre-erase is performed using a uni-polar direct current of a polarity that is opposite to the polarity of the direct current used to write the servo data. This pre-erase may be done with one or more heads. Also, as will be described, the pre-erase of a servo channel and writing to a servo channel may be done by making two passes over a single head or by using two or more heads to perform both steps. Also, it is within the scope of the present invention to have the heads mounted on a single mount or have the heads on separate mounts and on separate tape decks.
摘要翻译： 本发明涉及在伺服信道中写入伺服数据之前磁带的直流（“DC”）预擦除伺服通道。 本发明特别涉及用单极电流波形写入的那些伺服记录。 使用与用于写入伺服数据的直流电的极性相反的极性的单极直流电进行直流预擦除。 这种预擦除可以用一个或多个头完成。 此外，如将要描述的那样，可以通过在单个头上进行两次通过或者通过使用两个或更多个头执行两个步骤来完成对伺服信道的预擦除和对伺服信道的写入。 此外，将头部安装在单个安装座上或将头部安装在单独的安装件上以及在单独的磁带机上也在本发明的范围内。
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公开(公告)号：US07511907B2
公开(公告)日：2009-03-31
申请号：US11060627
申请日：2005-02-17
CPC分类号： G11B5/584 , G11B5/59638
摘要： The present invention relates to apparatuses and methods used in manufacturing magnetic tape. More specifically, the present invention relates to a method of writing a servo pattern on magnetic tape so as to minimize errors in the servo pattern, the heads used to write such servo data, and the magnetic tape manufactured with such heads. Errors in the servo pattern may be minimized by synthesizing the slanted transitions in a time based servo pattern using servo write gaps that are perpendicular to the tape motion. In so minimizing errors, distortion in the reading and/or writing of the data tracks can be prevented.
摘要翻译： 本发明涉及用于制造磁带的装置和方法。 更具体地说，本发明涉及一种将伺服图形写在磁带上的方法，以便最小化伺服模式中的误差，用于写入这种伺服数据的磁头以及用这种磁头制造的磁带。 可以通过使用垂直于带运动的伺服写入间隙在基于时间的伺服模式中合成倾斜转变来最小化伺服模式中的错误。 在这样最小化误差的情况下，可以防止读取和/或写入数据轨道的失真。
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