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1. 发明申请

US20190214042A1 Multi-Layer PZT Microactuator Having A Poled But Inactive PZT Constraining Layer 审中-公开
公开(公告)号：US20190214042A1
公开(公告)日：2019-07-11
申请号：US16357181
申请日：2019-03-18
申请人： Magnecomp Corporation
发明人： Kuen Chee Ee , Long Zhang , Peter Hahn , David Glaess
IPC分类号： G11B5/48 , G11B5/55 , G11B5/56
CPC分类号： G11B5/483 , G11B5/4873 , G11B5/5552 , G11B5/56
摘要： A multi-layer piezoelectric microactuator assembly has at least one poled and active piezoelectric layer and one poled but inactive piezoelectric layer. The poled but inactive layer acts as a constraining layer in resisting expansion or contract of the first piezoelectric layer thereby reducing or eliminating bending of the assembly as installed in an environment, thereby increasing the effective stroke length of the assembly. Poling only a single layer would induce stresses into the device; hence, polling both piezoelectric layers even though only one layer will be active in use reduces stresses in the device and therefore increases reliability.

2. 发明授权

US09305593B2 Skew-tolerant multiple-reader array in array-reader based magnetic recording 有权
标题翻译：基于阵列读取器的磁记录中的容错多读取器阵列
公开(公告)号：US09305593B2
公开(公告)日：2016-04-05
申请号：US14446012
申请日：2014-07-29
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Eui Seok Hwang , George Mathew
IPC分类号： G11B21/02 , G11B20/10 , G11B5/56
CPC分类号： G11B20/10388 , G11B5/3958 , G11B5/3964 , G11B5/56 , G11B20/10037 , G11B20/10046
摘要： A method for enhancing read performance in an ARMR system includes: obtaining CTS information for a plurality of readers in a multi-reader head of the ARMR system, the CTS information defining a relationship between skew angle and CTS between respective combinations of subsets of the readers; determining, as a function of the CTS information, a subset of the readers which provides enhanced read performance among the readers for each of a plurality of skew angles; assigning a weight value to each of a plurality of read signals generated by a corresponding one of the readers for each of the skew angles, the weight value being indicative of a performance of the corresponding one of the readers relative to one another; and decoding information read from at least one target track of a magnetic storage medium being read as a function of the read signals and corresponding weight values.
摘要翻译：一种用于增强ARMR系统中的读取性能的方法包括：在ARMR系统的多读取器头部中获得多个读取器的CTS信息，CTS信息定义倾斜角度与读取器子集的各组合之间的CTS之间的关系 ; 根据所述CTS信息确定所述读取器的子集，其为所述读取器中的多个倾斜角中的每一个提供增强的读取性能; 为每个所述倾斜角度的每个所述读取器生成的多个读取信号中的每一个分配权重值，所述权重值指示所述相应读取器之一相对于彼此的性能; 以及根据读取的信号和对应的权重值来读取从磁性存储介质的至少一个目标轨道读取的解码信息。

3. 发明申请

US20160012841A1 MAGNETIC HEAD AND SYSTEM HAVING OFFSET ARRAYS 有权
标题翻译：具有偏移阵列的磁头和系统
公开(公告)号：US20160012841A1
公开(公告)日：2016-01-14
申请号：US14860522
申请日：2015-09-21
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Philipp Herget , Calvin S. Lo
IPC分类号： G11B5/588
CPC分类号： G11B5/588 , G11B5/00813 , G11B5/00826 , G11B5/09 , G11B5/11 , G11B5/115 , G11B5/2652 , G11B5/29 , G11B5/4893 , G11B5/56 , G11B5/584
摘要： In one general embodiment, an apparatus includes at least two modules, each of the modules having an array of transducers, wherein the at least two modules are fixed relative to each other, wherein an axis of each array is defined between opposite ends thereof, wherein the axes of the arrays are oriented about parallel to each other, wherein the array of a first of the modules is offset from the array of a second of the modules in a first direction parallel to the axis of the array of the second module such that the transducers of the first module are about aligned with the transducers of the second module in an intended direction of tape travel thereacross; and a mechanism for orienting the modules about an axis orthogonal to the plane in which the arrays reside to control a transducer pitch presented to a tape.
摘要翻译：在一个一般实施例中，装置包括至少两个模块，每个模块具有换能器阵列，其中至少两个模块相对于彼此固定，其中每个阵列的轴线限定在其相对端之间，其中阵列的轴线彼此平行取向，其中第一模块的阵列在平行于第二模块的阵列的轴线的第一方向上偏离第二模块的阵列，使得所述第一模块的换能器与所述第二模块的所述换能器沿所述磁带行进的预期方向大致对齐; 以及用于使模块围绕垂直于阵列所在的平面的轴定向以控制呈现给带的换能器间距的机构。

4. 发明授权

US09129614B2 Magnetic head having canted arrays 有权
标题翻译：具有倾斜阵列的磁头
公开(公告)号：US09129614B2
公开(公告)日：2015-09-08
申请号：US13875230
申请日：2013-05-01
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Calvin S. Lo
IPC分类号： G11B5/29 , G11B5/265 , G11B5/008 , G11B5/56
CPC分类号： G11B5/00826 , G11B5/4893 , G11B5/56
摘要： An apparatus according to one embodiment includes a magnetic head, the magnetic head having: a tape bearing surface having a first edge oriented perpendicular to an intended direction of tape travel thereacross; and an array of transducers in and/or adjacent the tape bearing surface, wherein a longitudinal axis of the array is defined between opposite ends thereof, wherein the longitudinal axis of the array of transducers is oriented at an angle relative to the first edge, the angle being between greater than 0.2° and about 10°.
摘要翻译：根据一个实施例的装置包括磁头，磁头具有：带状表面，具有垂直于磁带行进方向的第一边缘; 以及在带支承表面中和/或邻近带状表面的换能器阵列，其中阵列的纵向轴线限定在其相对端之间，其中换能器阵列的纵向轴线相对于第一边缘以一定角度定向，角度大于0.2°至大约10°。

5. 发明授权

US09117471B1 AC MR-offset compensation 有权
标题翻译：交流MR偏置补偿
公开(公告)号：US09117471B1
公开(公告)日：2015-08-25
申请号：US14577400
申请日：2014-12-19
申请人： Seagate Technology LLC
发明人： Xiong Liu , Mingzhong Ding , KianKeong Ooi , Hoang Dung Vu , Chan Fan Lau , Xiang Lu
IPC分类号： G11B5/02 , G11B5/56
CPC分类号： G11B5/56 , G11B5/59627
摘要： An apparatus includes a controller configured to be coupled to a read/write head. The controller is configured to perform various operations including detecting a change in a time interval difference between servo sectors of a servo marked recording medium, converting the change to an offset signal that compensates for the change, and positioning the read/write head relative to the servo mark recording medium in response to the offset signal. The change in the time interval difference is representative of disk slip.
摘要翻译：一种装置包括被配置为耦合到读/写头的控制器。控制器被配置为执行各种操作，包括检测伺服标记的记录介质的伺服扇区之间的时间间隔差的变化，将改变转换为补偿变化的偏移信号，以及将读/写头相对于响应于偏移信号的伺服标记记录介质。时间间隔差异的变化代表了磁盘滑移。

6. 发明授权

US09093095B2 Electronic system with media preparation mechanism and method of operation thereof 有权
标题翻译：具有介质制备机构的电子系统及其操作方法
公开(公告)号：US09093095B2
公开(公告)日：2015-07-28
申请号：US14137418
申请日：2013-12-20
申请人： Western Digital Technologies, Inc.
发明人： Donald Brunnett , Kathy X. Tang , Jerry G. Le
IPC分类号： G11B21/02 , G11B5/09 , G11B5/56 , G11B20/12 , G11B5/60
CPC分类号： G11B5/56 , G11B5/6011 , G11B5/6029 , G11B5/607 , G11B5/6076 , G11B20/1217 , G11B2005/0021
摘要： An apparatus includes: a media; a head over the media; and control circuitry configured to cause the head to: write a first precondition track with a preconditioning pattern on the media, and write a data track on the media at a first inter-track spacing with the head positioned in a first direction from the first precondition track.
摘要翻译：一种装置包括：媒体; 媒体头以及控制电路，其被配置为使得所述头部：在所述介质上以预处理模式写入第一预处理轨迹，并且以所述头部位于与所述第一前提条件相对的第一方向上的第一间隔轨道间隔处在所述介质上写入数据轨道跟踪。

7. 发明授权

US09061634B2 Mirror mounting assembly 有权
标题翻译：镜面安装组件
公开(公告)号：US09061634B2
公开(公告)日：2015-06-23
申请号：US13716647
申请日：2012-12-17
申请人： Rosco, Inc.
发明人： Benjamin Englander
IPC分类号： B60R1/06 , G02B7/182 , G11B5/48 , G11B5/55 , G11B5/56 , G11B5/596 , B60R1/078
CPC分类号： B60R1/0605 , B60R1/06 , B60R1/078 , G02B7/182 , G11B5/4826 , G11B5/5552 , G11B5/56 , G11B5/596 , Y10S359/90
摘要： A mirror mounting assembly for mounting a mirror on a vehicle bulkhead. The assembly includes a mirror element and a main support arm having a first end and a second end. The mirror element is connected to the first end of the main support arm. The second end of the main support arm is mountable to the vehicle. A pair of brackets are configured to conform to an engine bay side wall of the vehicle. Each bracket has a center portion and two laterally extending flanges that extend at an angle from the center portion in opposite directions. One of the flanges of each bracket is connectable to the bulkhead of the vehicle in the engine bay. A first additional support arm has a first end connected to a first one of the brackets and a second end connected to the main support arm. A second additional support arm has a first end connected to the main support arm and a second end connectable to the vehicle. Finally, a third additional support arm has a first end connected to the main support arm and a second end connectable to the vehicle.
摘要翻译：用于将反射镜安装在车辆舱壁上的镜子安装组件。该组件包括镜子元件和具有第一端和第二端的主支撑臂。镜元件连接到主支撑臂的第一端。主支撑臂的第二端可安装到车辆上。一对支架被配置成符合车辆的发动机舱侧壁。每个支架具有中心部分和两个横向延伸的凸缘，其从相反方向的中心部分以一定角度延伸。每个支架的一个法兰可连接到发动机舱中车辆的舱壁。第一附加支撑臂具有连接到第一支架的第一端和连接到主支撑臂的第二端。第二附加支撑臂具有连接到主支撑臂的第一端和可连接到车辆的第二端。最后，第三附加的支撑臂具有连接到主支撑臂的第一端和可连接到车辆的第二端。

8. 发明申请

US20150170694A1 TAPE DIMENSION COMPENSATION 有权
公开(公告)号：US20150170694A1
公开(公告)日：2015-06-18
申请号：US14546121
申请日：2014-11-18
申请人： International Business Machines Corporation
发明人： Philipp Herget
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B5/56 , G11B20/10 , G11B27/36
摘要： In response to determining that a first write operation is to be performed on a portion of tape, writing data to a data track with a tape head element spacing at a nominal value. A tape width of one or more tape positions at which data is written is recorded. In another aspect, a tape width value associated with a tape is retrieved. A current tape width value associated with the tape is determined, and the tape head element spacing is set based on a difference between the retrieved tape width value and the determined current tape width value.

9. 发明授权

US08953266B2 Method and structure for improving performance and storage density in a data storage device 有权
标题翻译：用于提高数据存储设备中的性能和存储密度的方法和结构
公开(公告)号：US08953266B2
公开(公告)日：2015-02-10
申请号：US13593991
申请日：2012-08-24
申请人： Abhishek Dhanda , Toshiki Hirano , Tetsuo Semba
发明人： Abhishek Dhanda , Toshiki Hirano , Tetsuo Semba
IPC分类号： G11B5/54
CPC分类号： G11B20/1252 , G11B5/09 , G11B5/5543 , G11B5/56 , G11B5/59694 , G11B2020/1238
摘要： A data storage device with improved data storage densities, coupled with lower hard error and write-inhibit events is described. A feed-forward write inhibit (FFWI) method enables data tracks to be written more densely. Alternatively, the FFWI method may reduce the hard error and write inhibit events to improve data storage performance. A concept of virtual tracks enables the FFWI method to be applied to the writing of circular data tracks with non-circular servo tracks, or to the writing of non-circular data tracks with PES data from circular servo tracks—in both cases, improvements to performance and/or storage densities are enabled. The FFWI method may also be applied to the case of both non-circular servo and data tracks.
摘要翻译：描述了具有改进的数据存储密度以及更低的硬错误和禁止写入事件的数据存储设备。前馈写禁止（FFWI）方法使数据轨道更加密集地写入。或者，FFWI方法可以减少硬错误和写禁止事件以提高数据存储性能。虚拟轨道的概念使得FFWI方法可以应用于用非圆形伺服轨迹写入圆形数据轨道，或者用于从圆形伺服轨迹写入具有PES数据的非圆形数据轨迹 - 在这两种情况下，改进性能和/或存储密度启用。 FFWI方法也可以应用于非圆形伺服和数据轨道的情况。

10. 发明授权

US08896960B2 Timing-based servo for determining lateral head velocity 有权
标题翻译：用于确定横向头部速度的基于时序的伺服
公开(公告)号：US08896960B2
公开(公告)日：2014-11-25
申请号：US14049418
申请日：2013-10-09
申请人： International Business Machines Corporation
发明人： Allen K. Bates , Nhan X. Bui , Nils Haustein , Stephen L. Schwartz , Daniel J. Winarski
IPC分类号： G11B20/20
CPC分类号： G11B5/56 , G11B5/584 , G11B20/10388 , G11B20/1211 , G11B2020/1281 , G11B2220/956
摘要： A servo track has servo pattern frames including two pairs of parallel transitions, the transitions of each pair spaced apart an equal distance, the first pair at an azimuth angle, the second pair at the opposite azimuth angle. A servo channel receives signals at first times corresponding to a servo read head detecting the transitions of the first pair of parallel transitions of a servo pattern frame, and second times corresponding to the servo read head detecting the transitions of the second pair of parallel transitions. The servo channel determines a relative lateral movement and velocity between the tape and the tape head based on respective functions of the ratio (TD−TC)/(TB−TA), distance d, and constants proportional to the azimuth angle and the trajectory angle.
摘要翻译：伺服轨道具有包括两对平行过渡的伺服模式框架，每对的过渡间隔相等的距离，第一对以方位角，第二对处于相反的方位角。伺服通道在对应于检测伺服模式帧的第一对并行转换的转换的伺服读取头的第一时间接收信号，以及对应于检测第二对并行转换的转换的伺服读取头的第二次。伺服通道基于比例（TD-TC）/（TB-TA），距离d和与方位角和轨迹角成比例的常数的相应函数确定磁带和磁带头之间的相对横向运动和速度。

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