公开(公告)号：US11756579B2

公开(公告)日：2023-09-12

申请号：US17721664

申请日：2022-04-15

申请人： Seagate Technology LLC

发明人： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC分类号： G11B5/54 ,  G11B21/22 ,  G11B17/02 ,  G11B21/12 ,  G11B5/48 ,  G11B5/52

CPC分类号： G11B5/54 ,  G11B17/021 ,  G11B21/12 ,  G11B21/22 ,  G11B5/4813 ,  G11B5/52

摘要： A data storage device includes a ramp configured to support at least one head in the data storage device, and a movement mechanism coupled to the ramp and configured to move the ramp from a first position to a second position by at least one of expansion or contraction of at least a portion of the movement mechanism. The data storage device further includes a ramp motion control module operably coupled to the movement mechanism. The ramp motion control module is configured to provide the movement mechanism with a first control signal that causes the movement mechanism to move the ramp from the first position to the second position. The data storage device additionally includes a latch configured to hold the ramp.

公开(公告)号：US20220238137A1

公开(公告)日：2022-07-28

申请号：US17721664

申请日：2022-04-15

申请人： Seagate Technology LLC

发明人： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC分类号： G11B5/55 ,  G11B5/52 ,  G11B5/48

摘要： A data storage device includes a ramp configured to support at least one head in the data storage device, and a movement mechanism coupled to the ramp and configured to move the ramp from a first position to a second position by at least one of expansion or contraction of at least a portion of the movement mechanism. The data storage device further includes a ramp motion control module operably coupled to the movement mechanism. The ramp motion control module is configured to provide the movement mechanism with a first control signal that causes the movement mechanism to move the ramp from the first position to the second position. The data storage device additionally includes a latch configured to hold the ramp.

公开(公告)号：US09715886B2

公开(公告)日：2017-07-25

申请号：US15069847

申请日：2016-03-14

申请人： International Business Machines Corporation

发明人： Robert G. Biskeborn ,  Calvin S. Lo

IPC分类号： G11B5/008 ,  G11B5/584 ,  G11B5/48 ,  G11B5/31 ,  G11B5/10 ,  G11B5/187 ,  G11B15/60 ,  G11B5/53 ,  G11B5/52

CPC分类号： G11B5/00821 ,  G11B5/00813 ,  G11B5/00826 ,  G11B5/10 ,  G11B5/187 ,  G11B5/1872 ,  G11B5/31 ,  G11B5/4893 ,  G11B5/52 ,  G11B5/531 ,  G11B5/584 ,  G11B15/60

摘要： In one general embodiment, an apparatus includes a magnetic head. The magnetic head has a first portion and a second portion, the first portion and the second portion together providing a tape bearing surface. The first portion has two pieces flanking the second portion in an intended direction of tape travel thereacross. The second portion has at least one array of transducers. A longitudinal axis of each of the at least one array is defined between opposite ends thereof. The longitudinal axis of each of the at least one array of transducers is oriented at an angle relative to the line oriented orthogonally to the intended direction of tape travel thereacross, the angle being between 0.2° and about 10°.

公开(公告)号：US09576596B2

公开(公告)日：2017-02-21

申请号：US14924543

申请日：2015-10-27

申请人： International Business Machines Corporation

发明人： Robert G. Biskeborn ,  Calvin S. Lo

IPC分类号： G11B5/187 ,  G11B5/584 ,  G11B5/31 ,  G11B5/008 ,  G11B5/10 ,  G11B15/60 ,  G11B5/48 ,  G11B5/53 ,  G11B5/52

CPC分类号： G11B5/00821 ,  G11B5/00813 ,  G11B5/00826 ,  G11B5/10 ,  G11B5/187 ,  G11B5/1872 ,  G11B5/31 ,  G11B5/4893 ,  G11B5/52 ,  G11B5/531 ,  G11B5/584 ,  G11B15/60

摘要： In one general embodiment, an apparatus includes a magnetic head. The magnetic head has a first portion and a second portion, the first portion and the second portion together providing a tape bearing surface. The first portion has an opening at least partially encircling the second portion. The second portion has two modules, each module having at least one array of transducers. Each module has a first outermost edge oriented orthogonally to an intended direction of tape travel thereacross, and a second outermost edge opposite the first edge, the second edge being oriented at an angle between 0.2° and about 10° relative to a line oriented orthogonally to the intended direction of tape travel thereacross.

摘要翻译： 在一个一般实施例中，一种装置包括磁头。 磁头具有第一部分和第二部分，第一部分和第二部分一起提供带状承载表面。 第一部分具有至少部分地环绕第二部分的开口。 第二部分具有两个模块，每个模块具有至少一个换能器阵列。 每个模块具有正交于与其横跨的带材行进的预期方向正交的第一最外边缘，以及与第一边缘相对的第二最外边缘，第二边缘相对于与正交方向正交定向的线成一定角度为0.2°至约10° 磁带行驶的方向正好相反。

公开(公告)号：US20150062745A1

公开(公告)日：2015-03-05

申请号：US14015824

申请日：2013-08-30

申请人： HGST Netherlands B.V.

发明人： Tatsuya Hinoue ,  Ichiro Tamai ,  Hiroaki Nemoto

IPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/52

CPC分类号： G11B5/66 ,  G11B5/314 ,  G11B5/65 ,  G11B2005/0024

摘要： In one embodiment, a magnetic storage device includes at least one microwave assisted magnetic recording (MAMR) head, each MAMR head including a spin torque oscillator (STO), a magnetic recording medium, a drive mechanism for passing the magnetic medium over the at least one MAMR head, and a controller electrically coupled to the at least one MAMR head for controlling operation of the at least one MAMR head, wherein the magnetic recording medium includes a recording layer positioned directly or indirectly above a substrate and an assist layer positioned above the recording layer, wherein the recording layer includes at least Co, Pt, and an oxide or oxygen, wherein the assist layer is positioned closer to the at least one MAMR head and includes at least Co and Pt, and wherein at least a portion of the recording layer has a smaller anisotropic magnetic field than the assist layer.

摘要翻译： 在一个实施例中，磁存储装置包括至少一个微波辅助磁记录（MAMR）头，每个MAMR头包括自旋扭矩振荡器（STO），磁记录介质，用于使磁介质通过至少 一个MAMR头和一个控制器，电连接到至少一个MAMR头，用于控制至少一个MAMR头的操作，其中磁记录介质包括直接或间接地位于衬底上方的记录层，以及位于 记录层，其中所述记录层至少包括Co，Pt和氧化物或氧，其中所述辅助层定位成更接近所述至少一个MAMR头并且至少包括Co和Pt，并且其中至少一部分 记录层比辅助层具有较小的各向异性磁场。

公开(公告)号：US08937779B2

公开(公告)日：2015-01-20

申请号：US14449116

申请日：2014-07-31

申请人： Huazhong University of Science and Technology

发明人： Shu Xu ,  Bo Liu ,  Jincai Chen

IPC分类号： G11B5/09 ,  G11B5/31 ,  G11B5/52

CPC分类号： G11B5/3116 ,  G11B5/012 ,  G11B5/52 ,  G11B20/1217

摘要： A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner recording zone; if yes, proceeding to step 2), otherwise proceeding to step 4); 2) using an inner writing corner to start shingled magnetic recording at a starting track; 3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone; 4) determining whether the starting magnetic track is in the outer recording zone; 5) using an outer writing corner to start shingled magnetic recording at the starting track; and 6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner.

摘要翻译： 一种用于减小带状磁记录系统中的歪斜变化范围的方法，所述方法包括以下步骤：1）确定起始磁迹是否在内记录区中; 如果是，则进入步骤2），否则进行到步骤4）; 2）使用内部书写角落起始轨迹开始带状磁记录; 3）使用带状闪烁方法通过内部写入角顺序地写入静磁迹，保持书写杆在从内部记录区域到外部记录区域的方向上移动; 4）确定起始磁迹是否在外部记录区中; 5）使用外部书写角落在起始轨道开始带状磁记录; 和6）使用带状磁化方法通过外部书写角顺序地写入其余的磁迹。

公开(公告)号：US20120206834A1

公开(公告)日：2012-08-16

申请号：US13502970

申请日：2010-10-20

申请人： Manabu Ueda ,  Yuji Murakami ,  Akira Sakawaki ,  Zhipeng Wang

发明人： Manabu Ueda ,  Yuji Murakami ,  Akira Sakawaki ,  Zhipeng Wang

IPC分类号： G11B5/52 ,  G11B5/842

CPC分类号： G11B5/855 ,  B05D1/32

摘要： A production method of a magnetic recording medium of the present invention includes: a step of forming a magnetic layer (2) on a non-magnetic substrate (1); a step of forming a dissoluble layer (3) on the magnetic layer (2); a step of forming a mask layer (4) on the dissoluble layer (3); a step of patterning the dissoluble layer (3) and the mask layer (4) to a shape corresponding to a magnetic recording pattern (2a); a step of performing a partial modification or removal of the magnetic layer (2) by use of the patterned mask layer (4); and a step of dissolving the dissoluble layer (3) with a chemical agent so as to remove the dissoluble layer (3) together with the mask layer (4) formed thereon from the top of the magnetic layer (2), wherein the magnetic recording medium has the magnetically-separated magnetic recording pattern (2a).

摘要翻译： 本发明的磁记录介质的制造方法包括：在非磁性基板（1）上形成磁性层（2）的工序; 在所述磁性层（2）上形成可溶性层（3）的步骤; 在所述溶解层（3）上形成掩模层（4）的步骤; 将可溶性层（3）和掩模层（4）图案化成与磁记录图案（2a）相对应的形状的步骤; 通过使用图案化掩模层（4）进行部分修改或去除磁性层（2）的步骤; 以及通过化学试剂溶解所述溶解层（3）以从所述磁性层（2）的顶部与形成在其上的掩模层（4）一起除去所述溶解层（3）的步骤，其中所述磁记录 介质具有磁分离的磁记录图案（2a）。

公开(公告)号：US20120087038A1

公开(公告)日：2012-04-12

申请号：US12903032

申请日：2010-10-12

申请人： Haesung Kwon

发明人： Haesung Kwon

IPC分类号： G11B5/52

CPC分类号： G11B19/042 ,  G11B25/043

摘要： A hard disk drive and a disk base are disclosed with the disk base including a first face configured to form a disk cavity for the spindle motor, disk(s) and a voice coil motor and a second face configured to couple with a controller Printed Circuit Board (PCB) including at least one integrated circuit. Both faces are include a hub for mounting the spindle motor and surrounded by an outer wall. The first face and/or the second face include at least one partial rib extending from the hub or the outer wall partway to the other. The partial ribs are configured to position the integrated circuit and stiffen the disk base and hard disk drive from mechanical shocks, such as dropping the unit including the hard disk drive. A handheld device is disclosed including at least one of the disclosed hard disk drives with improved reliability to mechanical shocks.

摘要翻译： 公开了一种硬盘驱动器和盘基座，盘基座包括构造成形成用于主轴电动机，盘和音圈电动机的盘腔的第一面和配置成与控制器耦合的第二面印刷电路 板（PCB）至少包括一个集成电路。 两个面都包括用于安装主轴电机并被外壁包围的轮毂。 第一面和/或第二面包括至少一个部分凸肋，其从轮毂或外壁中途延伸到另一个。 部分肋构造成定位集成电路并使盘基座和硬盘驱动器受到机械冲击的硬化，例如丢弃包括硬盘驱动器的单元。 公开了一种手持设备，其包括具有改进的对机械冲击的可靠性的所公开的硬盘驱动器中的至少一个。

公开(公告)号：US07929828B1

公开(公告)日：2011-04-19

申请号：US10129878

申请日：2000-10-31

申请人： Jianlei James Xie ,  Mark Alan Schultz

发明人： Jianlei James Xie ,  Mark Alan Schultz

IPC分类号： H04N5/93 ,  H04N5/77 ,  H04N5/932 ,  H04N7/18 ,  H04N9/80 ,  H04N9/82 ,  G11B5/00 ,  G11B5/52 ,  G11B15/00 ,  G11B27/02

CPC分类号： H04N5/783 ,  G06T9/007 ,  G11B19/02 ,  G11B27/002 ,  G11B27/005 ,  G11B27/034 ,  G11B27/036 ,  G11B27/105 ,  G11B27/11 ,  G11B27/26 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2529 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/65 ,  H04N5/781 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8227

摘要： A method for editing source video in a DVD media for a slow motion recording special effect. According to the method, the DVD device receives a source video signal comprised of a plurality of source pictures. Each of the source video pictures is recorded in a selected picture frame on the DVD media. Subsequently s−1 copies of the selected source video picture on the DVD media in s−1 frames adjacent to the selected picture frame. For the purposes of the invention as described herein, s can be an integer value determined by a user selected motion speed. The user selected motion speed will be 1/s times slower relative to a normal motion speed.In an alternative embodiment, the method can be used for editing source video in a DVD media for a fast motion record special effect. In that case, the DVD device receives a source video signal comprised of a plurality of source pictures. Only one out of every n of the source video pictures is chosen as a selected source video picture. Each the selected source video pictures is recorded in a selected picture frame on the DVD media. Source video pictures that are not selected source video pictures are dropped. According to the invention, n can be an integer value determined by a user selected motion speed.

摘要翻译： 用于在DVD介质中编辑源视频用于慢动作记录特殊效果的方法。 根据该方法，DVD设备接收由多个源图像组成的源视频信号。 每个源视频图像被记录在DVD介质上的所选择的图像帧中。 随后在与所选图像帧相邻的s-1帧中的DVD介质上的所选源视频图像的s-1个副本。 为了本文所述的本发明的目的，s可以是由用户选择的运动速度确定的整数值。 用户选择的运动速度将相对于正常运动速度慢1 / s倍。 在替代实施例中，该方法可用于在DVD介质中编辑源视频以获得快速运动记录特殊效果。 在这种情况下，DVD装置接收由多个源图像构成的源视频信号。 源视频图像中每n个中只有一个被选择为选择的源视频图像。 每个所选择的源视频图像被记录在DVD介质上的所选择的图像帧中。 未选择源视频图像的源视频图像被丢弃。 根据本发明，n可以是由用户选择的运动速度确定的整数值。

公开(公告)号：US20100208386A1

公开(公告)日：2010-08-19

申请号：US12372635

申请日：2009-02-17

申请人： Georg Lauhoff

发明人： Georg Lauhoff

IPC分类号： G11B5/52 ,  G11B5/62 ,  B05D5/12

CPC分类号： G11B5/66

摘要： A disk for a hard disk drive. The disk includes a recording layer that is supported by a substrate and a stabilization layer that is anti-ferromagnetically coupled to the recording layer. Because the recording and stabilization layers are anti-ferromagnetically coupled the net magnetization is the difference in magnetization of the two layers. The stabilization layer has a Curie temperature that is lower than a Curie temperature of the recording layer. As temperature increases the magnetization properties of the stabilization layer will have a greater change than the same properties of the recording layer. The net magnetization, coercively and nucleation field of the recording and stabilization layers can be designed to vary less with increasing temperature than disk of the prior art.

摘要翻译： 硬盘驱动器的磁盘。 盘包括由衬底支撑的记录层和与记录层反铁磁耦合的稳定层。 由于记录和稳定层是反铁磁耦合的，净磁化强度是两层磁化强度的差异。 稳定层的居里温度低于记录层的居里温度。 随着温度的升高，稳定层的磁化特性将比记录层的相同特性具有更大的变化。 记录和稳定层的净磁化，矫顽磁场和成核场可以设计成随现有技术的磁盘的温度升高而变化较小。