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51.发明公开A microactuator for a hard disk drive with an integrated gimbal function 审中-公开Mikro-Aktuator mit integrierter Kopf-Aufhängungs-Veranstaltungfürein Plattenlaufwerk
公开(公告)号：EP1501077A2
公开(公告)日：2005-01-26
申请号：EP04014966.8
申请日：2004-06-25
IPC分类号： G11B5/48
CPC分类号： G11B5/4826
摘要： A micro-fabricated chip having a stationary structure and a movable structure with a gimbal structure allows pitch and roll motion of the movable structure with respect to the stationary structure. One embodiment of the gimbal structure includes a dimple surface making a rolling-type contact with the stationary structure, and a center bar and a plurality of bar members. An alternative embodiment of the gimbal structure includes a plurality of torsion bar members. Another alternative embodiment of the gimbal structure includes a plurality of flexible members. The micro-fabricated chip can be a passive chip structure or, alternatively, a microactuator having a movable structure that moves in a rotational direction or a translational direction with respect to the stationary structure.
摘要翻译： 具有静止结构的微制造芯片和具有万向节结构的可移动结构允许可移动结构相对于固定结构的俯仰和滚动运动。 万向架结构的一个实施例包括形成与固定结构的滚动式接触的凹坑表面，以及中心杆和多个杆构件。 万向架结构的一个替代实施例包括多个扭杆构件。 万向架结构的另一个实施例包括多个柔性构件。 微制造芯片可以是无源芯片结构，或者可选地，具有相对于固定结构在旋转方向或平移方向上移动的可移动结构的微致动器。
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52.发明公开Magnetoresistive sensor having an anistropic pinned layer for pinning improvement 审中-公开具有各向异性被钉扎层的磁致电阻传感器，以提高钉扎。
公开(公告)号：EP1752781A3
公开(公告)日：2010-03-17
申请号：EP06016262.5
申请日：2006-08-03
CPC分类号： G01R33/093
摘要： A magnetoresistive sensor (300) having a magnetically anisotropic pinned layer structure (308). The pinned layer structure is formed over a seed layer (326) having a surface (327) that has been treated to texture the surface of the seed layer with an anisotropic roughness. This anisotropic roughness induces the magnetic anisotropy in the pinned layers. The treated seed layers also allow the pinned layer to maintain robust pinning without the need for a thick AFM layer, thereby reducing gap size.
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公开(公告)号：EP1808731A3
公开(公告)日：2009-12-02
申请号：EP06024044.7
申请日：2006-11-20
发明人： Wu, Tsai-Wei
IPC分类号： G03F7/00
CPC分类号： G03F7/0002 , B82Y10/00 , B82Y40/00 , Y10S977/887
摘要： A nanoimprinting system incorporates a patterned media contact architecture to provide a uniform imprinting pressure across the target imprinting area on a disk substrate. The system leverages the unique disk substrate characteristic of an inner diameter hole by incorporating a membrane suspension, gel-pad buffering, and air cushion loading that exploits the inner diameter hole characteristics of the disk substrate. This design dramatically increases the uniformity of the pressing pressure across the target imprinting area. As a result, a simple and effective improvement of the quality of the patterns imprinted on the recording disk substrate is realized.
摘要翻译： 纳米压印系统结合图案化的介质接触结构，以在盘基底上的目标印迹区域上提供均匀的压印压力。 该系统通过结合利用盘基板的内径孔特性的膜悬浮液，凝胶垫缓冲和气垫负载来利用内径孔的独特的盘基底特性。 该设计大大增加了目标印迹区域上的压制压力的均匀性。 结果，实现了刻印在记录盘基片上的图案的质量的简单且有效的改进。
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公开(公告)号：EP1884925A3
公开(公告)日：2009-02-25
申请号：EP07012823.6
申请日：2007-06-29
IPC分类号： G11B5/02
CPC分类号： G11B5/02 , G11B2005/001
摘要： To reduce lowering of a recording current and a recording magnetic field that might occur upon execution of write pre-compensation for compensating the NLTS according to a perpendicular magnetic recording method, the recording current overshoot is increased for recording a high NLTS recording data pattern. The read signal quality is improved, thereby a highly reliable magnetic disk drive can be provided.
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55.发明公开Method for imposing modulation constraints on data and disk drive system 审中-公开一种用于执行数据调制和盘驱动系统的正确性的方法的条件
公开(公告)号：EP1679597A3
公开(公告)日：2009-01-28
申请号：EP05105272.8
申请日：2005-06-15
发明人： Cideciyan, Roy D. , Eleftheriou, Evangelos S. , Galbraith, Richard Leo , Mittelholzer, Thomas , Oenning, Travis
IPC分类号： G06F11/08
CPC分类号： H03M7/04 , G06F11/08 , G11B20/1426 , G11B2020/1473 , H03M5/145 , H03M7/06 , H03M13/31
摘要： Techniques are provided for applying modulation constraints to data by using periodically changing symbol mappings to replace certain prohibited error prone data patterns. Initially, user data in a first base is mapped to integers of a second base using a base conversion technique. The integers in the second base correspond to symbols. Subsequently, periodically changing symbol mappings are performed during which prohibited symbols generated during base conversion are mapped to permitted symbols. The periodically changing symbol mappings occur in multiple phases, and the prohibited symbols are different in each phase. The resulting data is processed by a precoder in some embodiments.
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公开(公告)号：EP2015167A2
公开(公告)日：2009-01-14
申请号：EP08003387.1
申请日：2008-02-25
发明人： Campello De Souza, Jorge , Chu, Frank R. , Han, Chunqi , Krishnamurthi Kulkarni, Anand , Molaro, Donald Joseph , New, Richard M.H. , Sanvido, Marco
IPC分类号： G06F3/06
CPC分类号： G06F12/0804 , G06F3/0611 , G06F3/0656 , G06F3/0659 , G06F3/0676 , G06F12/0866
摘要： The invention is a storage device which implements a write barrier command and provides means for a host to designate other write commands as being sensitive or insensitive to the existence of write barrier commands. The device can optimize the execution of commands by changing the order of execution of write commands that are insensitive to write barrier command. In an embodiment of the invention a flag associated with the write command indicates whether the command is sensitive or insensitive to the existence of write barrier commands. In an embodiment of the invention the write barrier command can be implemented as a write command with a flag that indicates whether the command is a write barrier command. In one embodiment of the invention the queue of commands and data to be written to the media is stored in a non-volatile cache.
摘要翻译： 本发明是一种实现写入屏障命令的存储设备，并且提供了用于主机将其他写入命令指定为对写入屏障命令的存在敏感或不敏感的装置。 该设备可以通过改变对写入屏障命令不敏感的写入命令的执行顺序来优化命令的执行。 在本发明的实施例中，与写入命令相关联的标志指示命令是否对写入屏障命令的存在是敏感的或不敏感的。 在本发明的一个实施例中，写屏障命令可以被实现为具有指示该命令是写阻挡命令的标志的写命令。 在本发明的一个实施例中，要写入到媒体的命令和数据队列被存储在非易失性高速缓存中。
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公开(公告)号：EP1615205B1
公开(公告)日：2008-12-03
申请号：EP05103702.6
申请日：2005-05-03
CPC分类号： G11B5/667 , G11B5/012 , G11B5/1278 , G11B5/65 , G11B5/7325 , G11B5/743 , G11B5/82 , G11B5/84
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公开(公告)号：EP1801789A3
公开(公告)日：2008-07-23
申请号：EP06024045.4
申请日：2006-11-20
发明人： Okada, Tomohisa
CPC分类号： G11B5/09 , G11B20/10009 , G11B2005/001
摘要： To provide a disk drive and a control method in the disk drive which can obtain good recording performance by amplifying the write current according to the recording method and the recording frequency. A HDD comprises a write current supply section and a write head (112a). The write current supply section generates a write signal for recording to a disk and, based on the write current, generates a write current IW. The write head (112a) records data to the disk by the write current IW. The write current supply section comprises a write channel (121) to generate the write signal V1, a write driver A (202) to generate a write current IA from the write signal V1, a high frequency pattern extracting circuit (201) to extract high frequency pattern parts from the write signal, and a write driver B (203) to generate a write current IB from the extracted high frequency pattern parts. The write currents IA and IB are added up and supplied to the write head (112a) as the write current IW whose magnitude is amplified only when the frequency is high.
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公开(公告)号：EP1777699A3
公开(公告)日：2008-07-09
申请号：EP06017833.2
申请日：2006-08-25
IPC分类号： G11B5/39
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A spin-valve type magnetic head which has sufficiently high output is provided. A structure in which high output coexists with high stability is achieved by letting a GMR-effect and a current-path-confinement effect manifest themselves at the same time in a GMR-screen layer 160 consisting of a ferromagnetic metal spike-like part 162 and a half-covering oxide layer 161.
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