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1. 发明申请

WO2020089686A1 THERMAL COMPENSATION FOR LASER IN HEAT ASSISTED MAGNETIC RECORDING 审中-公开
公开(公告)号：WO2020089686A1
公开(公告)日：2020-05-07
申请号：PCT/IB2019/001154
申请日：2019-10-29
申请人： MARVELL WORLD TRADE LTD.
发明人： OBERG, Mats , FANG, Hao
IPC分类号： G11B5/012 , G11B5/02 , G11B5/00
摘要： A storage medium controller has been designed to maintain thermal stability of a heat source based on a history of heat source active/inactive durations so that a variation in spot size generated by the heat source is reduced during Heat Assisted Magnetic Recording (HAMR). The storage medium controller modulates power to the heat source based on these active/inactive durations. While the heat source is inactive, the storage medium controller increases a thermal compensation value and after the heat source is activated, the storage medium controller drives the heat source according to a current parameter proportional to the thermal compensation value. As the heat source continues being active, the storage medium controller decreases the thermal compensation value and proportional current parameter so that thermal stability of the heat source is maintained.

2. 发明申请

WO2017151211A1 METHOD AND SYSTEM FOR HANDLING RANDOM ACCESS WRITE REQUESTS FOR A SHINGLED MAGNETIC RECORDING HARD DISK DRIVE 审中-公开
标题翻译：用于处理随机存取硬盘驱动器的随机存取请求的方法和系统
公开(公告)号：WO2017151211A1
公开(公告)日：2017-09-08
申请号：PCT/US2016/068066
申请日：2016-12-21
申请人： MICROSEMI STORAGE SOLUTIONS (U.S.), INC.
发明人： AIELLO, Anthony Frank , CALDWELL, Robert
IPC分类号： G06F3/06 , G06F11/10 , G06F12/08 , G11B5/012 , G11B20/12
CPC分类号： G11B20/1217 , G06F3/0608 , G06F3/064 , G06F3/0659 , G06F3/0676 , G06F12/0866 , G06F2212/262 , G06F2212/7205 , G11B2020/10916
摘要： Methods, devices and systems are provided for making a shingled magnetic recording (SMR) hard disk drive operate with similar random access characteristics of a conventional hard drive despite the SMR disk having strict sequential write requirements. A virtual space manager manages a virtual address space, which is visible to a host system, and maps virtual addresses to logical addresses on the SMR disk. A logical space manager controls the placement of data on the SMR disk and ensures that writes to the disk comply with the sequential write requirements. The disk is subdivided into a plurality of stripes each comprising one or more blocks. When a block located within a stripe is to be rewritten with new data, the entire stripe is read from the SMR disk into a memory of the system, the stripe is modified in the memory to replace the previous data stored in the block with the new data, and the modified stripe is written to a new, next available stripe on the disk.
摘要翻译：尽管SMR盘具有严格的顺序写入要求，但提供了方法，设备和系统，用于使得叠瓦式磁记录（SMR）硬盘驱动器以常规硬盘驱动器的类似随机访问特性来操作。虚拟空间管理器管理主机系统可见的虚拟地址空间，并将虚拟地址映射到SMR磁盘上的逻辑地址。逻辑空间管理器控制SMR磁盘上数据的放置，并确保写入磁盘符合顺序写入要求。盘被细分成多个条，每个条包含一个或多个块。当要用新数据重写位于条带内的块时，将整个条带从SMR磁盘读取到系统的存储器中，在存储器中修改条带以用新的数据替换存储在块中的先前数据数据，并且修改的条带被写入磁盘上新的下一个可用条带。

3. 发明申请

WO2015163388A1 MAGNETIC RECORDING APPARATUS AND CONTROLLING METHOD OF MAGNETIC RECORDING APPARATUS 审中-公开
标题翻译：磁记录装置的磁记录装置和控制方法
公开(公告)号：WO2015163388A1
公开(公告)日：2015-10-29
申请号：PCT/JP2015/062318
申请日：2015-04-16
申请人： CANON KABUSHIKI KAISHA
发明人： UMEDA, Yoshinobu
IPC分类号： G11B5/012 , G11B5/09
CPC分类号： G11B5/024 , G11B5/012 , G11B20/1217 , G11B2020/1238
摘要： In case of deleting shingle-recorded data on a recording medium, it enables to completely delete the data with the number of writing times less than the number of writing times in data recording. To do so, a magnetic recording apparatus, which records the data on the recording medium in a first direction with a writing unit, controls movement of a relative position of the recording medium and the writing unit such that a quantity of the movement in a second direction perpendicular to the first direction in the data deletion by overwriting another data is larger than a quantity of the movement in the second direction in the data recording.
摘要翻译：在删除记录介质上的瓦片记录数据的情况下，能够在数据记录中写入次数小于写入次数的情况下完全删除数据。为此，将记录介质上的数据以第一方向记录在记录单元上的磁记录装置控制记录介质和书写单元的相对位置的移动，使得在第二方向上的移动量通过重写另一数据在数据删除中垂直于第一方向的方向大于数据记录中第二方向的移动量。

4. 发明申请

WO2015039141A1 ISOLATED SHINGLED BANDS OF FRACTIONAL TRACKS 审中-公开
标题翻译：分离轨道的隔离带
公开(公告)号：WO2015039141A1
公开(公告)日：2015-03-19
申请号：PCT/US2014/055957
申请日：2014-09-16
申请人： SEAGATE TECHNOLOGY LLC
发明人： FELDMAN, Timothy, R.
IPC分类号： G06F3/06 , G11B5/012 , G11B20/12
CPC分类号： G11B20/1217 , G06F3/0608 , G06F3/0619 , G06F3/064 , G06F3/0644 , G06F3/0673 , G11B5/012 , G11B20/1883 , G11B2020/1228 , G11B2020/1277
摘要： Systems and methods for isolated bands of fractional tracks in a data storage memory (106), particularly memory employing shingled magnetic recording. In one embodiment, a data storage medium (402, 902) has a first data storage area with tracks (404) overlapped in a shingled manner. The first data storage area has a first circumferential portion of a track to store data. The data storage medium further has a second data storage area and a guard area (410) disposed between the first data storage area and the second data storage area. The guard area has a second circumferential portion of the track as a partial guard track.
摘要翻译：在数据存储存储器（106）中，特别是使用带状磁记录的存储器中的分数轨道的隔离带的系统和方法。在一个实施例中，数据存储介质（402,902）具有第一数据存储区域，其中轨道（404）以闪烁的方式重叠。第一数据存储区域具有用于存储数据的轨道的第一圆周部分。数据存储介质还具有设置在第一数据存储区域和第二数据存储区域之间的第二数据存储区域和保护区域（410）。保护区域具有作为部分保护轨道的轨道的第二圆周部分。

5. 发明申请

WO2014127163A1 MAGNETIC DATA STORAGE USING INDUCED STRAIN OF A MAGNETOSTRICTIVE MATERIAL 审中-公开
标题翻译：利用磁致伸缩材料的诱导应变的磁数据存储
公开(公告)号：WO2014127163A1
公开(公告)日：2014-08-21
申请号：PCT/US2014/016316
申请日：2014-02-13
申请人： STATE OF OREGON ACTING BY AND THROUGH THE STATE BOARD OF HIGHER EDUCTION ON BEHALF OF OREGON STATE UNIVERSITY
发明人： DHAGAT-JANDER, Pallavi , JANDER, Albrecht
IPC分类号： G11B5/027 , G11B5/012
CPC分类号： G11B5/825 , G11B5/09 , G11B5/314 , G11B2005/0005
摘要： Acoustically assisted magnetic recording can be used in a hard disk drive or a solid state medium. In the described embodiments, otherwise unwriteable high-coercivity media are made amenable to recording by lowering their coercivity via strain induced by acoustic waves. The use of acoustic waves temporarily and locally reduces the magnetic field required to record information on a magnetic recording medium. The process makes use of the magnetostrictive property of a magnetic material by which the magnetic anisotropy of the material is changed by strain. The result of such a change is a reduction in the coercive field, i.e., the magnetic field required to reverse the magnetization direction. Because acoustic waves cause strain, the passage of an acoustic wave through a magnetic material can be used to reduce its coercive field.
摘要翻译：声学辅助磁记录可用于硬盘驱动器或固态介质。在所描述的实施例中，否则不可写高矫顽力介质通过经由声波引起的应变降低它们的矫顽力而适于记录。临时和局部地使用声波减少了将信息记录在磁记录介质上所需的磁场。该工艺利用磁性材料的磁致伸缩性质，通过该磁致伸缩性材料的磁各向异性因应变而变化。这种变化的结果是矫顽场的减小，即，反转磁化方向所需的磁场。由于声波引起应变，声波通过磁性材料可以用来降低其矫顽磁场。

6. 发明申请

WO2011020026A1 A PATTERNED MAGNETIC BIT DATA STORAGE MEDIA AND A METHOD FOR MANUFACTURING THE SAME FIELD 审中-公开
标题翻译：一种图形磁性数据存储介质及其制造方法
公开(公告)号：WO2011020026A1
公开(公告)日：2011-02-17
申请号：PCT/US2010/045482
申请日：2010-08-13
申请人： VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES , SINCLAIR, Frank , SINGH, Vikram
发明人： SINCLAIR, Frank , SINGH, Vikram
IPC分类号： G11B5/012
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/743
摘要： An improved patterned magnetic bit data storage media and a method for manufacturing the same is disclosed. in one particular exemplary embodiment, the Improved patterned magnetic bit data storage media may comprise an active region exhibiting substantially ferromagnetism; and an inactive region exhibiting substantially paramagnetism, the inactive region comprising at least two grains and a grain boundary interposed therebetween, wherein each of the at least two grains contain ferromagnetic material, and wherein the at least two grains are antiferromagnetically coυpled.
摘要翻译：公开了一种改进的图案化磁位数据存储介质及其制造方法。在一个特定示例性实施例中，改进的图案化磁位数据存储介质可以包括显示出基本上铁磁性的有源区; 和表现出基本上顺磁性的非活性区域，所述非活性区域包括至少两个晶粒和介于其间的晶界，其中所述至少两个晶粒中的每一个都含有铁磁材料，并且其中所述至少两个晶粒被反铁磁共振。

7. 发明申请

WO2010089851A1 情報記憶装置、ヘッドおよびクロック生成装置审中-公开
标题翻译：信息存储装置，头和时钟产生装置
公开(公告)号：WO2010089851A1
公开(公告)日：2010-08-12
申请号：PCT/JP2009/051807
申请日：2009-02-03
申请人：東芝ストレージデバイス株式会社 , 芝野元通
发明人：芝野元通
IPC分类号： G11B5/012 , G11B5/09
CPC分类号： G11B5/59616 , B82Y10/00 , G11B5/743
摘要：　磁気ディスク装置は、磁気記憶媒体上に形成された磁性ドットの配置パターンに同期したクロック信号を作成することを概要とする。磁気ディスク装置は、磁気ヘッドに設けられたサイドシールド内の磁気特性の変化を、サイドシールドに設けられるサーチコイルにより検出して、磁気ヘッドと磁性ドットとの位置関係を取得する。そして、磁気ディスク装置は、取得した記録ヘッドと磁性ドットとの位置関係を用いて、磁性ドットに同期したライトクロック信号を生成する。
摘要翻译：磁盘装置产生与在磁存储介质上产生的磁点的布局图形同步的时钟信号。磁盘装置通过设置在侧面屏蔽上的搜索线圈来检测提供给磁头的侧屏蔽内的磁性的变化，以获得磁头与磁点之间的位置关系。然后，磁盘装置利用获取的记录头与磁点之间的位置关系，产生与磁点同步的写时钟信号。

8. 发明申请

WO2005094396A3 HIGH RELIABILITY-PARALLEL DATA TRANSFER HARD DISK DRIVE 审中-公开
标题翻译：高可靠性并行数据传输硬盘驱动器
公开(公告)号：WO2005094396A3
公开(公告)日：2009-05-22
申请号：PCT/US2005001657
申请日：2005-01-18
申请人： ZABTCIOGLU FIKRET M
发明人： ZABTCIOGLU FIKRET M
IPC分类号： G11B5/55 , G11B5/012 , G11B5/31 , G11B5/48 , G11B5/49 , G11B5/82 , G11B21/08
CPC分类号： G11B5/012 , G11B5/3103 , G11B5/4886 , G11B5/4969 , G11B5/4976 , G11B5/82
摘要： A dual actuator arm assembly system that uses two pairs of actuator-carriage arms (13-14) that linearly move over a stationary micro-rail (15-16) independently. The geometric shape of the two pairs of actuator carriage arms (13-14) conform to the arcs of the data tracks (22, 22a, 22b, 23, 23a) at an acute angle. System enables micro- actuation that is integrated to actuator arm (13-14) and is a function of its geometry. Uninterrupted data stream and sector coverage and thus parallel data transfer scheme is made possible. Each actuator (13-14) move only within a limited range (17, 17a, 18, 18a) of disk area, thus precision is increased, vibration is minimized and external transfer rate is speeded up and overall access time is shortened. Instant access to two quarters (20, 21) of the disk with two pairs of actuators (13-14) and to park these without landing the heads (26, 26a) -by positioning and constant fly height during idle mode, or when system is turned off, are introduced as what are new in the art.
摘要翻译：双致动器臂组件系统，其使用两对致动器 - 托架臂（13-14），其独立地在固定微轨（15-16）上线性移动。两对致动器支架臂（13-14）的几何形状以锐角与数据轨道（22,22a，22b，23,2aa）的弧线一致。系统实现了与致动器臂（13-14）集成的微动作，并且是其几何形状的函数。不间断的数据流和扇区覆盖以及并行数据传输方案成为可能。每个致动器（13-14）仅在盘区域的有限范围（17,17a，18,18a）内移动，因此精度提高，振动最小化，外部传送速度加快，总体访问时间缩短。通过两对执行器（13-14）即时访问磁盘的两个季度（20,21），并且在空闲模式下通过定位和恒定飞行高度来停放这些驱动器（26，26a），或者当系统被关闭，被介绍为本领域的新技术。

9. 发明申请

WO2006052757A2 ELECTRICAL CURRENT AS PROBE FOR MODULATION AT HEAD-DISK INTERFACE 审中-公开
标题翻译：电流作为调制头盘接口的探头
公开(公告)号：WO2006052757A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/040030
申请日：2005-11-04
申请人： SAE MAGNETICS (H.K.) LTD. , FENG, Zhu , ZHANG, Xiaofeng , CHA, Ellis
发明人： FENG, Zhu , ZHANG, Xiaofeng , CHA, Ellis
IPC分类号： G11B5/012
CPC分类号： G11B5/455 , G11B5/40 , G11B5/4555 , G11B5/6017 , G11B5/6058
摘要： A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head reads a signal from the magnetic storage medium. A tester measures an alternating electric current between the magnetic read/write head through the slider and the magnetic storage medium. A computer may then calculate the modulation by the magnetic read/write head based on the alternating electric current. A DC voltage to the head may be applied to lower the flying height of the magnetic head.
摘要翻译：公开了一种用于测量诸如磁盘的磁头和磁存储介质之间的调制的系统和方法。在给定的飞行高度，磁读/写头位于磁存储介质上方。磁读/写头读取来自磁存储介质的信号。测试仪测量通过滑动器的磁读/写磁头与磁存储介质之间的交流电流。计算机然后可以基于交流电流计算磁读/写头的调制。可以施加到头部的DC电压以降低磁头的飞行高度。

10. 发明申请

WO2006032027A2 CARTRIDGE CARRIER 审中-公开
公开(公告)号：WO2006032027A2
公开(公告)日：2006-03-23
申请号：PCT/US2005033161
申请日：2005-09-13
申请人： CERTANCE LLC , HAMMING JOHN ANTHONY
发明人： HAMMING JOHN ANTHONY
IPC分类号： G11B5/012 , G11B17/00
CPC分类号： G06F1/187 , G11B33/122 , G11B33/124
摘要： A cartridge carrier has a base with a recessed plate, a top surface, and a bottom surface. An ejection mechanism may be coupled to the base. A guide may be coupled to the top surface of the base to receive the cartridge and an interposer board may be coupled to the guide.
摘要翻译：盒式载体具有带有凹板，顶表面和底表面的底座。弹出机构可以联接到基座。引导件可以联接到基座的顶部表面以容纳盒，并且插入器板可以联接到引导件。

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