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    Magnetic recording disk drive with shingled writing and rectangular optical waveguide for wide-area thermal assistance
    42.
    发明授权
    Magnetic recording disk drive with shingled writing and rectangular optical waveguide for wide-area thermal assistance 有权
    磁记录磁盘驱动器带有写字和矩形光波导用于广域热辅助

    公开(公告)号：US08416646B2

    公开(公告)日：2013-04-09

    申请号：US13190410

    申请日：2011-07-25

    申请人： Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

    发明人： Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A thermally-assisted recording (TAR) disk drive uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source. The waveguide generates a generally elliptically-shaped optical spot that heats an area of the recording layer extending across multiple data tracks. The waveguide core has an aspect ratio (cross-track width to along-the track thickness) that achieves the desired size of the heated area while locating the peak optical intensity close to the trailing edge of the write pole tip where writing occurs. The large cross-track width of the waveguide core increases the volume of recording layer heated by the optical spot, which reduces the rate of cooling. This moves the peak temperature point of the heated area closer to the write pole tip and reduces the temperature drop between the peak temperature and the temperature at the trailing edge of the write pole tip where writing occurs.

    摘要翻译： 热辅助记录（TAR）磁盘驱动器使用带状闪烁的记录和矩形波导作为广域热源。 波导产生大致椭圆形的光点，其加热跨越多个数据轨道的记录层的区域。 波导芯具有实现加热区域的期望尺寸的纵横比（沿轨道厚度的横越轨道宽度），同时将峰值光强度定位在写入发生时写入磁极尖端的后缘附近。 波导芯的大的横向轨道宽度增加了由光点加热的记录层的体积，这降低了冷却速度。 这使得加热区域的峰值温度点更接近写极端，并且降低峰值温度与写入磁极尖端的后缘处的温度之间的温度下降。

    SHINGLED-WRITING THERMAL ASSISTANCE RECORDING (TAR) DISK DRIVE WITH AVOIDANCE OF ADJACENT TRACK ERASURE FROM A WIDE-AREA HEATER
    43.
    发明申请
    SHINGLED-WRITING THERMAL ASSISTANCE RECORDING (TAR) DISK DRIVE WITH AVOIDANCE OF ADJACENT TRACK ERASURE FROM A WIDE-AREA HEATER 有权
    记录热辅助记录（TAR）磁盘驱动器，避免来自广域加热器的相邻轨迹擦除

    公开(公告)号：US20130028061A1

    公开(公告)日：2013-01-31

    申请号：US13192437

    申请日：2011-07-27

    申请人： Hal J. Rosen ,  Barry Cushing Stilpe ,  Petrus Antonius VanDerHeijden

    发明人： Hal J. Rosen ,  Barry Cushing Stilpe ,  Petrus Antonius VanDerHeijden

    IPC分类号： G11B5/02 ,  G11B13/04

    CPC分类号： G11B5/02 ,  G11B5/012 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A thermally-assisted recording (TAR) disk drive that uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source includes a controller that counts the number of writes to each annular band of data tracks. The wide-area heater generates a heat spot that extends across multiple tracks, so that each time an annular band is written, the data in tracks in adjacent bands are also heated. Because the bands are written independently, the number of passes of the heat spot and thereby the number of times the data tracks in a band are exposed to elevated temperatures without being re-written is related to the number of re-writes of the adjacent bands. The number of writes to each band is counted and when that count reaches a predetermined threshold value, one or more tracks in an adjacent band are re-written to avoid reaching an unacceptable level of magnetization decay in the tracks of the adjacent band.

    摘要翻译： 使用带有遮蔽的记录和矩形波导作为广域热源的热辅助记录（TAR）磁盘驱动器包括对数据轨道的每个环形带的写入次数进行计数的控制器。 广域加热器产生一个延伸穿过多个轨迹的热点，因此每次写入一个环形带时，相邻带中轨道中的数据也被加热。 由于频带是独立写入的，所以热点的通过次数以及频带中数据轨迹的次数暴露于升高的温度而不被重新写入与相邻频带的重写次数有关 。 对每个频带的写入次数进行计数，并且当该计数达到预定阈值时，重新写入相邻频带中的一个或多个磁道，以避免在相邻频带的磁道中达到不可接受的磁化衰减水平。

    THREE-DIMENSIONAL MAGNETIC MEMORY
    44.
    发明申请
    THREE-DIMENSIONAL MAGNETIC MEMORY 有权
    三维磁记忆

    公开(公告)号：US20080205116A1

    公开(公告)日：2008-08-28

    申请号：US12116111

    申请日：2008-05-06

    申请人： Robert E. Fontana ,  Andreas Moser ,  Hal J. Rosen ,  Bruce D. Terris ,  Ching Hwa Tsang

    发明人： Robert E. Fontana ,  Andreas Moser ,  Hal J. Rosen ,  Bruce D. Terris ,  Ching Hwa Tsang

    IPC分类号： G11C11/15 ,  H01L21/00

    CPC分类号： G11C11/14 ,  G11C5/02 ,  G11C19/0808

    摘要： Magnetic memories and methods are disclosed. A magnetic memory as described herein includes a plurality of stacked data storage layers to form a three-dimensional magnetic memory. Bits may be written to a data storage layer in the form of magnetic domains. The bits can then be transferred between the stacked data storage layers by heating a neighboring data storage layer, which allows the magnetic fields from the magnetic domains to imprint the magnetic domains in the neighboring data storage layer. By imprinting the magnetic domains into the neighboring data storage layer, the bits are copied from one data storage layer to another.

    摘要翻译： 公开了磁存储器和方法。 如本文所述的磁存储器包括多个堆叠的数据存储层以形成三维磁存储器。 位可以以磁畴的形式写入数据存储层。 然后可以通过加热相邻数据存储层在堆叠的数据存储层之间传送这些位，这允许来自磁畴的磁场将磁畴压印在相邻的数据存储层中。 通过将磁畴印刷到相邻数据存储层中，将这些位从一个数据存储层复制到另一个。

    Three-dimensional magnetic memory
    46.
    发明授权
    Three-dimensional magnetic memory 有权
    三维磁记忆体

    公开(公告)号：US07388776B1

    公开(公告)日：2008-06-17

    申请号：US11615618

    申请日：2006-12-22

    申请人： Robert E. Fontana, Jr. ,  Andreas Moser ,  Hal J. Rosen ,  Bruce D. Terris ,  Ching Hwa Tsang

    发明人： Robert E. Fontana, Jr. ,  Andreas Moser ,  Hal J. Rosen ,  Bruce D. Terris ,  Ching Hwa Tsang

    IPC分类号： G11C11/15 ,  G11C11/14

    CPC分类号： G11C11/14 ,  G11C5/02 ,  G11C19/0808

    摘要： Magnetic memories and methods are disclosed. A magnetic memory as described herein includes a plurality of stacked data storage layers to form a three-dimensional magnetic memory. Bits may be written to a data storage layer in the form of magnetic domains. The bits can then be transferred between the stacked data storage layers by heating a neighboring data storage layer, which allows the magnetic fields from the magnetic domains to imprint the magnetic domains in the neighboring data storage layer. By imprinting the magnetic domains into the neighboring data storage layer, the bits are copied from one data storage layer to another.

    摘要翻译： 公开了磁存储器和方法。 如本文所述的磁存储器包括多个堆叠的数据存储层以形成三维磁存储器。 位可以以磁畴的形式写入数据存储层。 然后可以通过加热相邻数据存储层在堆叠的数据存储层之间传送这些位，这允许来自磁畴的磁场将磁畴压印在相邻的数据存储层中。 通过将磁畴印刷到相邻数据存储层中，将这些位从一个数据存储层复制到另一个。

    Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layer
    47.
    发明授权
    Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layer 失效
    具有三层铁磁层的磁记录介质，其具有从下层到上层增加的固有矫顽力

    公开(公告)号：US07180710B2

    公开(公告)日：2007-02-20

    申请号：US10853431

    申请日：2004-05-24

    申请人： Hoa Van Do ,  David Margulies ,  Hal J. Rosen ,  Natacha F. Supper

    发明人： Hoa Van Do ,  David Margulies ,  Hal J. Rosen ,  Natacha F. Supper

    IPC分类号： G11B5/66

    CPC分类号： G11B5/66 ,  G11B5/656 ,  G11B5/82

    摘要： A magnetic recording medium has a laminated magnetic structure with at least three magnetic layers, wherein the magnetic layers have decreasing intrinsic coercivity H0 with distance from the write head. The write field at the center of each magnetic layer is greater than that layer's H0. The magnetic layers have different compositions and/or thicknesses and thereby different values of H0. The alloys used in the middle and upper magnetic layers are relatively “high-moment” alloys that would not ordinarily be used in magnetic recording media because they have relatively low S0NR, but the overall S0NR of the laminated magnetic structure is improved because of the effect of lamination. The middle and upper magnetic layers can be made substantially thinner, which enables the magnetic layers to be located closer to the write head, thereby exposing each of the magnetic layers to a higher write field.

    摘要翻译： 磁记录介质具有至少三个磁性层的层叠磁性结构，其中磁性层具有与写头距离更小的固有矫顽力H 0 0。 每个磁性层的中心处的写入场大于该层的H 0 0。 磁性层具有不同的组成和/或厚度，从而具有不同的H 0 O值。 在中上层磁性层中使用的合金是相对“高力矩”的合金，它们通常不会用于磁记录介质，因为它们具有相对较低的S O N，但总体上S 0得到改善。 可以使中上层磁性层和上磁性层实质上更薄，这使得磁层能够更靠近写入头位置，从而将每个磁性层暴露于较高的写入场。

    Magnetic recording disk drive with laminated media and improved media signal-to-noise ratio
    48.
    发明授权
    Magnetic recording disk drive with laminated media and improved media signal-to-noise ratio 失效
    具有层压介质的磁记录磁盘驱动器和改进的介质信噪比

    公开(公告)号：US06989952B2

    公开(公告)日：2006-01-24

    申请号：US10620542

    申请日：2003-07-15

    申请人： David T. Margulies ,  Andreas Moser ,  Hal J. Rosen ,  Jan-Ulrich Thiele

    发明人： David T. Margulies ,  Andreas Moser ,  Hal J. Rosen ,  Jan-Ulrich Thiele

    IPC分类号： G11B5/02

    CPC分类号： G11B5/012 ,  G11B5/656 ,  G11B5/66 ,  G11B5/82 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/001 ,  G11B2005/0016 ,  G11B2005/0021

    摘要： A magnetic recording disk drive has an inductive write head and a heater to record data in laminated media on the recording disk. The laminated media, with at least two ferromagnetic layers separated by a nonmagnetic spacer layer, improves SNR. Each of the ferromagnetic layers can be formed of a material having an intrinsic coercivity capable of being written by a conventional inductive write head, but because of the desired lamination to increase SNR, the ferromagnetic layer farthest from the write head is exposed to a magnetic field less than its intrinsic coercivity and thus can not be written. To write to the laminated media, heat is directed to the lower ferromagnetic layer to reduce its intrinsic coercivity below the magnetic field to which it is exposed.

    摘要翻译： 磁记录磁盘驱动器具有感应写头和加热器，用于在记录盘上的叠层介质中记录数据。 具有由非磁性间隔层隔开的至少两个铁磁层的层压介质提高了SNR。 每个铁磁层可以由具有能够由常规感应写头写入的固有矫顽力的材料形成，但是由于期望的叠层以增加SNR，所以从写头最远的铁磁层暴露于磁场 小于其内在矫顽力，因此不能写出。 为了写入层压介质，将热量导向下铁磁层，以将它的固有矫顽力降低到暴露于其下的磁场。

    Optical disk data storage system with multiple write-once dye-based data layers
    50.
    发明授权
    Optical disk data storage system with multiple write-once dye-based data layers 失效
    光盘数据存储系统，具有多个基于染料的多个数据层

    公开(公告)号：US5627817A

    公开(公告)日：1997-05-06

    申请号：US435069

    申请日：1995-05-08

    申请人： Hal J. Rosen ,  Kurt A. Rubin ,  Wade W.-C. Tang

    发明人： Hal J. Rosen ,  Kurt A. Rubin ,  Wade W.-C. Tang

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/244 ,  G11B7/248 ,  G11B7/249

    CPC分类号： G11B7/2472 ,  G11B7/00452 ,  G11B7/005 ,  G11B7/24038 ,  G11B7/244 ,  G11B7/2467 ,  G11B7/248 ,  G11B7/249 ,  G11B2007/0013 ,  G11B7/24015 ,  G11B7/24018 ,  G11B7/2532 ,  G11B7/2533

    摘要： A multiple data layer dye-based optical disk drive uses a disk with a light transmissive substrate onto which the laser light at a single wavelength is incident. The disk substrate supports at least two spatially separated data layers formed of dye material. The disk is either an air-gap structure wherein each data layer is supported on a separate substrate and the substrates are separated by an air-gap, or a solid structure wherein a solid light transmissive spacer layer separates the data layers. The invention makes use of the characteristic anomalous dispersion absorption band of certain dye materials, in which at a specific wavelength the dye material exhibits a high index of refraction and low extinction coefficient. This allows the first data layer (the one nearest the incident laser light) and intermediate data layers to exhibit both sufficient absorption when the laser is focused on those data layers and high transmissivity when the laser is focused on the last or farther data layers. The index of refraction of the dye-based data layers is selected to be significantly greater than the adjacent substrate and spacer layer to enhance the reflectivity, and the thickness of the data layers is selected to take advantage of the constructive interference effect caused by the reflection at those interfaces. In one embodiment of the invention the dye material for the data layers is a mixture of two different dyes that are not chemically reactive with one another and that retain their individual optical properties. This dye-based data layer exhibits anomalous dispersion absorption at two distinct wavelengths, thereby allowing disks recorded at one wavelength to be read by optical disk drives that use lasers operating at a lower wavelength.

    摘要翻译： 多数据层染料基光盘驱动器使用带有透光基板的光盘，单波长的激光入射到该光盘基板上。 盘基片支持由染料材料形成的至少两个空间分离的数据层。 盘是气隙结构，其中每个数据层被支撑在单独的衬底上，并且衬底被气隙分离，或者固体透光间隔层分离数据层的固体结构。 本发明利用某些染料的特征异常色散吸收带，其中在特定波长下染料具有较高的折射率和较低的消光系数。 这允许当激光聚焦在那些数据层上时，第一数据层（最接近入射激光的一个）和中间数据层呈现出足够的吸收，并且当激光聚焦在最后一个或更远的数据层上时具有高的透射率。 选择基于染料的数据层的折射率明显大于相邻衬底和间隔层以增强反射率，并且选择数据层的厚度以利用由反射引起的相长干涉效应 在那些接口。 在本发明的一个实施方案中，用于数据层的染料材料是两种不同的染料的混合物，其不彼此化学反应并且保持其各自的光学性质。 这种基于染料的数据层在两个不同的波长处表现出异常色散吸收，从而允许使用在较低波长下操作的激光的光盘驱动器读取在一个波长处记录的磁盘。