公开(公告)号：US20050285589A1

公开(公告)日：2005-12-29

申请号：US10876197

申请日：2004-06-23

申请人： James Eaton ,  Darrell Follett ,  David Harper ,  Wayne Imaino ,  Leif Kirschenbaum ,  Andrew McKee ,  Luis Palacios

发明人： James Eaton ,  Darrell Follett ,  David Harper ,  Wayne Imaino ,  Leif Kirschenbaum ,  Andrew McKee ,  Luis Palacios

IPC分类号： G01B7/14 ,  G11B5/55

CPC分类号： G11B5/5508 ,  G11B5/556

摘要： A system and method for analyzing a coil actuator of a type having a coil and a magnet. A current source selectively applies a first current to a coil of a coil actuator for setting a moveable part of the coil actuator to a first position. A recording system captures data corresponding to a back electromotive force voltage produced by oscillation of the coil actuator upon movement of the moveable part of the coil actuator to a second position. A processor applies a curve fit to the back electromotive force data for calculating a frequency characteristic and damping response of the coil actuator.

摘要翻译： 一种用于分析具有线圈和磁体的线圈致动器的系统和方法。 电流源选择性地向线圈致动器的线圈施加第一电流，以将线圈致动器的可移动部分设置到第一位置。 当线圈致动器的可移动部分移动到第二位置时，记录系统捕获对应于由线圈致动器的振荡产生的反电动势电压的数据。 处理器对用于计算线圈致动器的频率特性和阻尼响应的反电动势数据施加曲线拟合。

公开(公告)号：US20060007579A1

公开(公告)日：2006-01-12

申请号：US10886493

申请日：2004-07-07

申请人： Leif Kirschenbaum ,  Mark Taylor

发明人： Leif Kirschenbaum ,  Mark Taylor

IPC分类号： G11B21/02 ,  G11B5/09

CPC分类号： G11B5/584 ,  Y10T29/49036 ,  Y10T29/49048

摘要： The present invention uses Electronic Lapping Guides (ELG's), which are patterned on every tape head, as servo format verifiers. This is implemented by specifically placing the ELG's at the appropriate locations to match the servo signal track locations and thus be usable to verify the servo format patterns on the formatted tape. According to another aspect of the present invention, tape head components which have faulty read sensors, servo sensors, or write elements which have valid ELG's may be used for the servo format verification purpose.

摘要翻译： 本发明使用在每个磁带头上图案化的电子研磨引导件（ELG）作为伺服格式验证器。 这通过将ELG专门放置在适当的位置以匹配伺服信号轨迹位置来实现，并且因此可用于验证格式化磁带上的伺服格式图案。 根据本发明的另一方面，具有有缺陷的读取传感器，伺服传感器或具有有效ELG的写入元件的磁头组件可用于伺服格式验证目的。

公开(公告)号：US20060152851A1

公开(公告)日：2006-07-13

申请号：US11034494

申请日：2005-01-12

申请人： Robert Biskeborn ,  Leif Kirschenbaum ,  Mark Taylor

发明人： Robert Biskeborn ,  Leif Kirschenbaum ,  Mark Taylor

IPC分类号： G11B5/147

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3906 ,  G11B5/3909 ,  G11B2005/3996

摘要： A planar servo verifier head is provided comprising a plurality of magnetic head elements optimized for the readback process. The plurality of magnetic head elements are fabricated in a planar two-dimensional array in which individual elements can be used to read servo format tracks spaced across the width of a magnetic tape. In one embodiment, the magnetic head element comprises a read transducer formed of one or more turns of a sense wire inductively coupled to a magnetic yoke in a trench formed on the transducing surface of a substrate. In another embodiment, the magnetic head element comprises a read transducer formed of a thin film magnetoresistive sensor coupled to a magnetic flux guide in a trench formed on the transducing surface of a substrate. According to the method for manufacturing an embodiment of the servo verifier read head for magnetic tape recording, a plurality of trenches are formed in a nonmagnetic substrate wafer, preferably, a ceramic wafer. A first magnetic permeable layer is deposited in the trench. A first insulating layer is deposited on the first magnetic permeable layer. A conducting circuit is defined on the first insulating layer such as by lithographically defining the circuit. A second insulating layer is deposited in the trench such that the conducting circuit is enclosed between the first and second insulating layers. The wafer can be planarized down to about the original surface level of the wafer. A pattern of read gaps is defined and a second magnetic layer is added over the second insulating layer.

公开(公告)号：US20060039082A1

公开(公告)日：2006-02-23

申请号：US10924597

申请日：2004-08-23

申请人： Robert Biskeborn ,  Leif Kirschenbaum

发明人： Robert Biskeborn ,  Leif Kirschenbaum

IPC分类号： G11B5/10

CPC分类号： G11B5/4893

摘要： A tape recording head is provided comprising a multiple plane transducer row having a plurality of planes of transducer arrays fabricated on a substrate and which may be staggered or offset relative to one another in a direction perpendicular to the direction of linear motion of the recording tape over the recording head. The multiple plane recording head provides a significant advantage over a head having a single transducer plane by allowing simultaneous reading (or writing) of data tracks on a magnetic recording tape that are more closely spaced apart with respect to one another than the spacing of the read (or write) transducers in a single plane.

公开(公告)号：US20050057262A1

公开(公告)日：2005-03-17

申请号：US10662111

申请日：2003-09-12

申请人： Leif Kirschenbaum

发明人： Leif Kirschenbaum

IPC分类号： G01R31/04

CPC分类号： G01R31/043

摘要： A method for testing an electrical connection to a flat electrical cable. The cable includes a flexible sheath having first and second ends and multiple conductors embedded in the sheath. For each conductor, first and second electrical contacts are in communication with the conductor. Also for each conductor, a third electrical contact is in communication with the conductor. The third electrical contact is amenable to coupling with an electronic component. The method includes creating a first electrical coupling between a conductor of a flat cable and a test system, and an electronic component is electrically coupled to the flat cable. A second electrical coupling is created between the conductor and the test system, the second electrical coupling also being positioned towards the first end of the flat cable. An electrical charge is introduced from the test system to the first electrical coupling. A resistance across some or all of the first and second electrical couplings is determined.

摘要翻译： 一种用于测试与扁平电缆的电连接的方法。 电缆包括具有第一端和第二端以及嵌入护套中的多个导体的柔性护套。 对于每个导体，第一和第二电触点与导体连通。 此外，对于每个导体，第三电触点与导体连通。 第三电触头适于与电子部件耦合。 该方法包括在扁平电缆的导体和测试系统之间产生第一电耦合，并且电子部件电耦合到扁平电缆。 在导体和测试系统之间产生第二电耦合，第二电耦合也被定位成朝向扁平电缆​​的第一端。 从测试系统引入电荷到第一电耦合。 确定了部分或全部第一和第二电耦合的电阻。