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公开(公告)号：US11837263B1
公开(公告)日：2023-12-05
申请号：US17820731
申请日：2022-08-18
CPC分类号： G11B5/024 , G11B5/00813 , G11B5/325
摘要： Provided are a tape erase element, tape erase device, and method for forming a tape erase element to erase content of a tape medium. The tape erase element comprises a housing forming a gap extending along a length of an outer surface of the housing. The gap extends from the outer surface of the housing to open into an inner space formed within the housing. A magnet is positioned within the inner space of the housing and having a surface extending across the gap. The magnet produces a magnetic flux that extends through a tape contact zone extending across a portion of the outer surface of the housing and the gap to erase content on the tape medium as the tape guide rollers guide the tape medium across the housing through the tape contact zone.
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公开(公告)号：US11056132B2
公开(公告)日：2021-07-06
申请号：US16242947
申请日：2019-01-08
摘要： In one embodiment, an apparatus includes a module having a substrate and a closure, an array of transducers in a thin film structure on the substrate, the array being positioned along a tape bearing surface of the module, and a heating element positioned in the thin film structure and recessed from the tape bearing surface, and a controller electrically coupled to the heating element. The controller is configured to apply a current pulse of size, shape and duration sufficient to induce a permanent expansion of the array of transducers.
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3.发明授权公开(公告)号：US11049528B2
公开(公告)日：2021-06-29
申请号：US16164683
申请日：2018-10-18
摘要： An apparatus, according to one embodiment, includes a module having an array of transducers, and a thermoelectric cooling element positioned proximate to the array of transducers. An apparatus, according to one embodiment, includes a module having an array of transducers, a thermoelectric cooling element positioned proximate to the array of transducers, and a heating element positioned proximate to the array of transducers. A method of maintaining a span of an array of transducers of module to a specification, according to one embodiment, includes determining whether the span of the array of transducers in a module is different than a target based on a specification. In response to determining the span is greater than the target, a control signal is applied to a thermoelectric cooling element positioned proximate to the span of the array of transducers for contracting the span of the array of transducers toward the target.
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公开(公告)号：US10062398B1
公开(公告)日：2018-08-28
申请号：US15445870
申请日：2017-02-28
摘要： An apparatus, according to one embodiment, includes: a module, and a plurality of tunnel valve read transducers arranged in an array extending along the module. Each of the tunnel valve read transducers includes: a sensor structure, an upper magnetic shield, a lower magnetic shield, an upper conducting spacer layer between the sensor structure and the upper magnetic shield, a lower conducting spacer layer between the sensor structure and the lower magnetic shield, and electrically insulating layers on opposite sides of the sensor structure. The sensor structure includes a cap layer, a free layer, a tunnel barrier layer, a reference layer and an antiferromagnetic layer. Moreover, a height of the free layer measured in a direction perpendicular to a media bearing surface of the module is less than a width of the free layer measured in a cross-track direction perpendicular to an intended direction of media travel.
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公开(公告)号：US20170370986A1
公开(公告)日：2017-12-28
申请号：US15656644
申请日：2017-07-21
CPC分类号： G01R31/2829 , G01R33/0035 , G01R33/098
摘要： A computer-implemented method includes, by one or more processors in electronic communication with a tunneling magnetoresistive sensor, wherein the tunneling magnetoresistive sensor is a component of a magnetic storage drive configured to read magnetic data from a magnetic storage medium, detecting a short across the tunneling magnetoresistive sensor, measuring a change in resistance of the tunneling magnetoresistive sensor, measuring a change in voltage amplitude for the tunneling magnetoresistive sensor, and dividing said change in voltage amplitude by said change in resistance to yield a ratio. The computer-implemented method further includes, responsive to the ratio being greater than a predetermined ratio threshold, determining that the short is caused by a magnetic shunt. A corresponding computer program product and computer system are also disclosed.
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6.发明授权Tape head with write pole having multiple layers superimposed in a direction perpendicular to the contact plane 有权具有写入极的磁带头，其具有在垂直于接触平面的方向上叠加的多个层公开(公告)号：US09570097B1
公开(公告)日：2017-02-14
申请号：US15042446
申请日：2016-02-12
CPC分类号： G11B5/1871 , G11B5/00813 , G11B5/1274 , G11B5/147 , G11B5/313 , G11B5/3146 , G11B5/3183
摘要： A tape head, configured to contact a magnetic tape, at the level of a contact plane, for writing to the tape, in operation is provided. The tape head includes a transducer, the latter being a write element, configured to write to the magnetic tape, in operation. The transducer includes a layered write pole, the latter comprising a set of two or more superimposed layers of distinct materials, the layers superimposed in a direction perpendicular to the contact plane. A saturation magnetization of each of two material layers of the set is between 1.0 to 2.3 Tesla. A contrast between the saturation magnetizations of the two material layers of the set is between 32% and 130%, the contrast defined as 100×(Bs,max/Bs,min−1), where Bs,max and Bs,min respectively denote a largest one and the smallest one of the saturation magnetizations of the two material layers of the set.
摘要翻译： 提供了一种磁带头，其被配置为在接触平面的水平处接触磁带，用于在操作中写入磁带。 带头包括一个换能器，后者是一个写入元件，用于在操作中写入磁带。 换能器包括分层写入磁极，后者包括一组不同材料的两个或多个叠加层，这些层在垂直于接触平面的方向上叠加。 该组的两个材料层中的每一个的饱和磁化强度在1.0至2.3特斯拉之间。 该组的两个材料层的饱和磁化之间的对比度在32％和130％之间，对比度定义为100×（Bs，max / Bs，min-1），其中Bs，max和Bs，min分别表示 该组的两个材料层的最大的和最小的一个饱和磁化。
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7.发明授权Attenuation of a pitch mode for actuator assemblies having multiple degrees of freedom 有权具有多个自由度的致动器组件的俯仰模式的衰减公开(公告)号：US09251821B1
公开(公告)日：2016-02-02
申请号：US14682011
申请日：2015-04-08
CPC分类号： G11B5/4893 , G11B5/5504 , G11B5/584
摘要： An apparatus, in one embodiment, includes: a pivot assembly pivotably supporting a head carriage assembly, a motor coupled to the head carriage assembly for rotatably positioning the head carriage assembly about an axis of skew which extends perpendicular to a plane defined by an intended direction of media movement across the head carriage assembly and a direction of fine motion of the head carriage assembly, the fine motion direction being oriented perpendicular to the intended direction of media movement, a linear assembly supporting the pivot assembly and the head carriage assembly, the linear assembly being configured to move along the fine motion direction, and a first flexure extending between the head carriage assembly and the linear assembly, the first flexure permitting the rotatable positioning of the head carriage assembly about the axis of skew, the first flexure resisting pitching movement of the head carriage assembly relative to the linear assembly.
摘要翻译： 在一个实施例中，一种装置包括：可枢转地支撑头部托架组件的枢轴组件，耦合到头部托架组件的马达，用于将头托架组件围绕垂直于由预期方向限定的平面延伸的偏斜轴线可旋转地定位 通过头部支架组件的介质运动和头部托架组件的精细运动的方向，微细运动方向垂直于介质运动的预期方向定向，支撑枢转组件和头部托架组件的线性组件，线性 组件被构造成沿微细运动方向移动，以及在头部托架组件和线性组件之间延伸的第一挠曲，第一挠曲允许头部托架组件围绕倾斜轴线可旋转定位，第一抗弯曲俯仰运动 的头托架组件相对于线性组件。
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公开(公告)号：US09087553B2
公开(公告)日：2015-07-21
申请号：US14250727
申请日：2014-04-11
发明人： Laurent A. Dellmann , Johan B. C. Engelen , Simeon Furrer , Mark Alfred Lantz , Hugo E. Rothuizen
CPC分类号： G11B5/60 , G01K7/16 , G11B5/00813 , G11B27/36
摘要： Tape head with thermal tape-head distance sensor to reduce the distance between the tape and the head to allow an increase in areal density. A tape head designed for reading and/or writing to a tape, including: a tape bearing surface shaped to form an air bearing when moving the tape with respect to the tape bearing surface; a thermal tape-head distance sensor circuit adapted to sense heat dissipated at the level of the tape bearing surface by the tape and thereby sense a distance between the tape bearing surface and the tape; and tape-head distance control means connected to the thermal tape-head distance sensor circuit to receive a signal provided by the tape-head distance sensor circuit and configured to alter the distance according to a signal received from the tape-head distance sensor circuit. This invention is further directed to a method of tape-head distance control for the above tape head.
摘要翻译： 磁带头带有热带头距离传感器，以减少磁带和磁头之间的距离，以增加面密度。 一种设计用于读取和/或写入磁带的磁带头，包括：当磁带相对于磁带承载表面移动时成形为形成空气轴承的磁带轴承表面; 一种热带头距离传感器电路，其适于感测通过带在带承载表面的水平面上消散的热量，从而感测带承载表面和带之间的距离; 以及磁带头距离控制装置，其连接到热磁带头距离传感器电路，以接收由磁带头距离传感器电路提供的信号，并且被配置为根据从磁带头距离传感器电路接收的信号改变距离。 本发明还涉及一种用于上述磁带头的磁带头距离控制的方法。
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公开(公告)号：US08947829B2
公开(公告)日：2015-02-03
申请号：US13918123
申请日：2013-06-14
CPC分类号： G11B15/64 , G11B5/00826 , G11B5/581
摘要： A tape head system includes a read and/or write head having at least one read and/or write element configured to read from and/or write to magnetic tape and at least one electrostatic element arranged adjacent to the read and/or write element; and a controller configured to apply a potential to the at least one electrostatic element.
摘要翻译： 磁头系统包括具有至少一个读取和/或写入元件的读取和/或写入头部，该读取和/或写入元件被配置为从磁带读取和/或写入至少一个与读取和/或写入元件相邻布置的静电元件; 以及控制器，被配置为向所述至少一个静电元件施加电位。
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10.发明申请公开(公告)号：US20200143824A1
公开(公告)日：2020-05-07
申请号：US16734182
申请日：2020-01-03
摘要： In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.
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