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11. 发明授权

US08252153B2 Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches 有权
标题翻译：具有磁化伺服柱和相对磁化的伺服沟槽的伺服区域的图案化介质垂直磁记录盘
公开(公告)号：US08252153B2
公开(公告)日：2012-08-28
申请号：US13103143
申请日：2011-05-09
申请人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： C23C14/00 , C23C14/32
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

12. 发明申请

US20110258841A1 Planarization Methods For Patterned Media Disks 失效
标题翻译：图案化媒体盘的平面化方法
公开(公告)号：US20110258841A1
公开(公告)日：2011-10-27
申请号：US13082189
申请日：2011-04-07
申请人： Zvonimir Z. Bandic , Elizabeth Ann Dobisz , Jui-Lung Li , Henry Hung Yang
发明人： Zvonimir Z. Bandic , Elizabeth Ann Dobisz , Jui-Lung Li , Henry Hung Yang
IPC分类号： G11B5/127
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048
摘要： A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.
摘要翻译：提供了一种用于在具有第一近似平面的基板中形成多个磁性材料区域的方法。该方法包括以下步骤：在衬底的第一表面中制造突起，在第一表面上沉积磁性材料，使得突起的顶部被磁性材料覆盖，并将填充材料沉积在如此制造的衬底上。然后可以例如通过化学机械抛光将填料材料平坦化。在替代实施例中，磁性材料沉积在基底上，并且其部分被去除，留下材料岛。然后沉积填料，其可以被平坦化。

13. 发明授权

US07948701B2 Servo patterns for self-assembled island arrays 有权
标题翻译：自组装岛阵列的伺服模式
公开(公告)号：US07948701B2
公开(公告)日：2011-05-24
申请号：US12627621
申请日：2009-11-30
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
IPC分类号： G11B5/09 , G11B21/02 , G11B5/596
CPC分类号： G11B5/5965
摘要： Servo patterns and associated methods of fabricating servo patterns are described. For patterned storage media, data sectors and servo sectors may be patterned using self-assembly. In one embodiment, self-assembly is used to form a first array of islands and a second array of islands in servo sectors that are track-wise offset. A servo writing process is then performed to write a desired servo pattern in the arrays, such as for burst fields, synchronization fields, etc.
摘要翻译：描述了制造伺服模式的伺服模式和相关方法。对于图案化存储介质，可以使用自组装图案化数据扇区和伺服扇区。在一个实施例中，自组装被用于形成第一阵列阵列和在跟踪方向偏移的伺服扇区中的岛的第二阵列。然后执行伺服写入处理以在阵列中写入期望的伺服模式，例如用于突发字段，同步字段等。

14. 发明申请

US20100182716A1 DISK DRIVE HAVING MULITPLE DISK SURFACES ACCESSIBLE BY A READ/WRITE HEAD AND NONVOLATILE MEMORY FOR CONTINUOUS DATA TRANSFER 有权
标题翻译：具有读/写头和非易失性存储器可连续传输数据的磁盘驱动器
公开(公告)号：US20100182716A1
公开(公告)日：2010-07-22
申请号：US12356070
申请日：2009-01-19
申请人： Zvonimir Z. Bandic , Marco Sanvido
发明人： Zvonimir Z. Bandic , Marco Sanvido
IPC分类号： G11B21/02
CPC分类号： G11B19/044 , G11B5/5521 , G11B20/10527 , G11B2020/10759 , G11B2220/235 , G11B2220/2516
摘要： A magnetic recording hard disk drive (HDD) has at least one read/write head that accesses more than one disk surface. The HDD is able to transfer data to and from the host computer seamlessly without interruption during the time the head is being moved from one disk surface to another disk surface. Nonvolatile solid state memory is associated with pairs of disk surfaces. During the time of a head transfer from one disk surface in the pair to the other disk surface, data is read from or written to the associated nonvolatile memory. The data is first read from or written to one disk surface, then from or to the nonvolatile memory, and then, after completion of the head transfer, from or to the other disk surface, thereby allowing seamless uninterrupted transfer of data.
摘要翻译：磁记录硬盘驱动器（HDD）具有访问多于一个盘表面的至少一个读/写头。在头部从一个盘表面移动到另一个盘表面时，HDD能够无缝地将数据传送到主计算机和从主计算机传送数据。非易失性固态存储器与一对磁盘表面相关联。在磁头从一个磁盘表面传输到另一个磁盘表面的时间期间，数据从相关联的非易失性存储器读取或写入相关联的非易失性存储器。数据首先从一个磁盘表面读取或写入，然后从或从非易失性存储器读取，然后在头部传送完成之后从另一个磁盘表面读取或写入，从而允许无缝地不间断地传输数据。

15. 发明授权

US07504167B2 Contact magnetic transfer template having magnetic islands of antiferromagnetically-coupled ferromagnetic films 失效
标题翻译：具有反铁磁耦合铁磁膜的磁岛的接触磁性传递模板
公开(公告)号：US07504167B2
公开(公告)日：2009-03-17
申请号：US11036503
申请日：2005-01-13
申请人： Zvonimir Z. Bandic , Ernesto E. Marinero
发明人： Zvonimir Z. Bandic , Ernesto E. Marinero
IPC分类号： G11B5/66
CPC分类号： G11B5/865 , G11B5/66 , G11B5/732
摘要： A contact magnetic transfer (CMT) master template with antiferromagnetically-coupled (AF-coupled) magnetic islands is used for transferring a magnetic pattern, such as a servo pattern, to a magnetic recording disk. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.
摘要翻译：使用具有反铁磁耦合（AF耦合）磁岛的接触磁传递（CMT）主模板将诸如伺服模式的磁图案传送到磁记录盘。该模板是刚性或柔性基板，每个磁岛是通过反铁磁耦合（AFC）膜反铁磁耦合的两个铁磁膜。在存在施加的磁场的情况下，两个铁磁膜的磁矩是平行的并且基本相同，因此它们产生磁场，该磁场抵消面对岛的从盘区域中的施加磁场。然而，当施加的场被去除时，由于跨越AFC膜的反铁磁交换耦合的结果，任何剩余磁化导致两个铁磁性膜中的剩余力矩取向反平行。因此，这些岛没有可以影响转移到记录盘的伺服模式的净残余磁矩。

16. 发明授权

US07106531B2 Method of forming a servo pattern on a rigid magnetic recording disk 有权
标题翻译：在刚性磁记录盘上形成伺服图案的方法
公开(公告)号：US07106531B2
公开(公告)日：2006-09-12
申请号：US11036426
申请日：2005-01-13
申请人： Zvonimir Z. Bandic , Ernesto E. Marinero
发明人： Zvonimir Z. Bandic , Ernesto E. Marinero
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/82
摘要： A contact magnetic transfer (CMT) method for forming a magnetic pattern, such as the servo pattern on a magnetic recording disk, uses a master template with antiferromagnetically-coupled (AF-coupled) magnetic islands. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.
摘要翻译：用于在磁记录盘上形成诸如伺服图案的磁性图案的接触磁转移（CMT）方法使用具有反铁磁耦合（AF耦合）磁岛的主模板。该模板是刚性或柔性基板，每个磁岛是通过反铁磁耦合（AFC）膜反铁磁耦合的两个铁磁膜。在存在施加的磁场的情况下，两个铁磁膜的磁矩是平行的并且基本相同，因此它们产生磁场，该磁场抵消面对岛的从盘区域中的施加磁场。然而，当施加的场被去除时，由于跨越AFC膜的反铁磁交换耦合的结果，任何剩余磁化导致两个铁磁性膜中的剩余力矩取向反平行。因此，这些岛没有可以影响转移到记录盘的伺服模式的净残余磁矩。

17. 发明授权

US06967808B1 Data recording system with servo pattern having pseudo-random binary sequences 失效
标题翻译：具有伪随机二进制序列的伺服模式的数据记录系统
公开(公告)号：US06967808B1
公开(公告)日：2005-11-22
申请号：US10845814
申请日：2004-05-13
申请人： Zvonimir Z. Bandic , Richard M. H. New , Bruce Alexander Wilson
发明人： Zvonimir Z. Bandic , Richard M. H. New , Bruce Alexander Wilson
IPC分类号： G11B5/55 , G11B5/596 , G11B20/10 , G11B20/12 , G11B20/14 , G11B21/10 , G11B5/09
CPC分类号： G11B5/59688 , G11B5/5526 , G11B20/1217 , G11B20/1403 , G11B2020/1232 , G11B2020/1238 , G11B2020/1287 , G11B2220/2516
摘要： A data recording system, such as a magnetic recording hard disk drive, has a recording medium in which the data tracks have pseudo-random binary sequences for the servo information used to control the position of the recording head. A first pseudo-random binary sequence (PRBS) and a second PRBS identical to the first PRBS but shifted by a portion of the period of the first PRBS are located between the track boundaries in alternating tracks in a first region of the servo pattern and between the track centers in alternating tracks in a second region spaced along the track from said first region. A servo decoder has two correlators, one for each PRBS. Each correlator outputs a dipulse when its PRBS repeats. The difference in amplitude of the dipulses represents the head position signal. The dipulses also control the amplifier for the signal read back by the head and the timing of the track identification (TID) detector.
摘要翻译：诸如磁记录硬盘驱动器的数据记录系统具有其中数据轨道具有用于控制记录头的位置的伺服信息的伪随机二进制序列的记录介质。第一伪随机二进制序列（PRBS）和与第一PRBS相同但被第一PRBS的周期的一部分移位的第二PRBS位于伺服模式的第一区域中的交替轨道中的轨道边界之间，并且位于所述轨道在与所述第一区域沿所述轨道间隔开的第二区域中的交替轨道中心。伺服解码器具有两个相关器，每个PRBS一个。当PRBS重复时，每个相关器输出dipulse。二次脉冲的幅度差表示磁头位置信号。该信号还可控制放大器的头部读取信号和磁道识别（TID）检测器的定时。

18. 发明授权

US06791774B1 Contact magnetic transfer of servo pattern to rigid perpendicular magnetic recording disk 有权
标题翻译：将伺服模式的磁传递接触到刚性垂直磁记录盘
公开(公告)号：US06791774B1
公开(公告)日：2004-09-14
申请号：US10436932
申请日：2003-05-12
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic
IPC分类号： G11B586
CPC分类号： B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/86 , G11B5/865 , G11B2005/0029
摘要： A contact magnetic transfer method forms a pattern of magnetized servo regions in the magnetic recording layer of a rigid perpendicular magnetic recording disk. A master disk or template has a rigid or flexible base with a first film of soft magnetic material on the base and a pattern of islands of soft magnetic material on and extending above the first film and recesses between the islands. The slave disk to be servo patterned is either DC magnetized in a first direction perpendicular to the plane of the recording layer or AC-erased. The slave disk is then placed with its outer layer in proximity to the islands of the master template and a magnetic field is applied in a perpendicular direction to magnetize the regions beneath the islands in the same direction as the applied field. In the regions of the recording layer beneath the recesses of the template the magnetization is reversed from that in the regions beneath the islands.
摘要翻译：接触磁转移方法在刚性垂直磁记录盘的磁记录层中形成磁化伺服区的图案。母盘或模板具有刚性或柔性基部，在基部上具有软磁材料的第一膜，并且在第一膜上方并且在第一膜之上延伸并且在岛之间的凹陷处形成软磁材料岛的图案。要伺服图案化的从盘在垂直于记录层的平面的第一方向上被直流磁化或被AC擦除。然后将从盘与其外层放置在主模板的岛附近，并且沿垂直方向施加磁场，以沿与所施加的场相同的方向磁化岛下的区域。在模板凹陷下方的记录层的区域中，磁化与岛下方的区域相反。

19. 发明申请

US20130232292A1 IMPLEMENTING LARGE BLOCK RANDOM WRITE HOT SPARE SSD FOR SMR RAID 有权
标题翻译：实现大型块随机写入热备份SSD用于SMR RAID
公开(公告)号：US20130232292A1
公开(公告)日：2013-09-05
申请号：US13410089
申请日：2012-03-01
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
IPC分类号： G06F12/00
CPC分类号： G06F12/0246 , G06F3/061 , G06F3/0611 , G06F3/0619 , G06F3/0632 , G06F3/0634 , G06F3/068 , G06F3/0689 , G11B5/012
摘要： A method and a storage system are provided for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID). A Solid State Drive (SSD) is provided with the SMR drives in the RAID. The SSD is used in a hot spare mode, which is activated when a large block random-write event is identified for a SMR drive in the RAID. In the hot spare mode, the SSD temporarily receives new incoming writes for the identified SMR drive. Then the identified SMR drive is updated from the SSD to restore the state of the identified SMR drive, and operations continue with normal writing only using the SMR drives in the RAID.
摘要翻译：提供了一种方法和存储系统，用于实现用于廉价磁盘（RAID）的冗余阵列中的带状磁记录（SMR）驱动器的持续大块随机写入性能机制。固态驱动器（SSD）随RAID中的SMR驱动器一起提供。 SSD用于热备份模式，当为RAID中的SMR驱动器标识大块随机写入事件时，SSD将被激活。在热备用模式下，SSD临时接收所识别的SMR驱动器的新进入写入。然后，从SSD更新所识别的SMR驱动器，以恢复所识别的SMR驱动器的状态，并且只有使用RAID中的SMR驱动器才能正常进行操作。

20. 发明申请

US20130198436A1 IMPLEMENTING ENHANCED DATA PARTIAL-ERASE FOR MULTI-LEVEL CELL (MLC) MEMORY USING THRESHOLD VOLTAGE-DRIFT OR RESISTANCE DRIFT TOLERANT MOVING BASELINE MEMORY DATA ENCODING 有权
标题翻译：使用阈值电压缓冲或电阻干扰实现增强数据部分删除多电平（MLC）存储器容错移动基线存储器数据编码
公开(公告)号：US20130198436A1
公开(公告)日：2013-08-01
申请号：US13361925
申请日：2012-01-30
申请人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
发明人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
IPC分类号： G06F12/00 , G11C11/00 , G11C16/04
CPC分类号： G11C16/16 , G11C11/5635 , G11C11/5678 , G11C13/0035 , G11C13/0097 , G11C16/349 , G11C2013/0076
摘要： A method and apparatus are provided for implementing enhanced data partial erase for multi-level cell (MLC) memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data partial erase for data written to the MLC memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding is performed, and a data re-write after the partial erase to the MLC memory is performed using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data partial erase cycle includes a duration and voltage level based upon a degradation of the MLC memory cells.
摘要翻译：提供了一种使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码来实现用于多电平单元（MLC）存储器的增强型数据部分擦除的方法和装置。执行使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码写入MLC存储器的数据的数据部分擦除，并且使用阈值电压来执行对MLC存储器的部分擦除之后的数据重写驱动或电阻漂移运动基线存储器数据编码。数据部分擦除周期包括基于MLC存储器单元的劣化的持续时间和电压电平。

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