专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US09305571B2 Magnetic devices and magnetic media with graphene overcoat 有权
标题翻译：磁性器件和磁性介质与石墨烯外涂层
公开(公告)号：US09305571B2
公开(公告)日：2016-04-05
申请号：US12646851
申请日：2009-12-23
申请人： Bruce A. Gurney , Ernesto E. Marinero , Simone Pisana
发明人： Bruce A. Gurney , Ernesto E. Marinero , Simone Pisana
IPC分类号： G11B5/72 , G11B5/31 , G11B5/84 , G11B5/10
CPC分类号： G11B5/3106 , G11B5/102 , G11B5/72 , G11B5/8408
摘要： A magnetic disk according to one embodiment includes a recording layer; and a layer of graphene formed above the recording layer. A nucleation layer may be formed between the recording layer and the graphene layer in some approaches. A magnetic device according to another embodiment includes a transducer; a nucleation layer formed above the transducer; and a layer of graphene formed on the nucleation layer. A method according to one embodiment includes forming a nucleation layer above a magnetic layer of a magnetic disk or magnetic device; and forming a layer of graphene on the nucleation layer. A method according to another embodiment includes depositing SiC above a magnetic layer of a magnetic disk or magnetic device, the SiC being equivalent to several monolayers thick; and surface heating the SiC to selectively evaporate some of the Si from the SiC for forming a layer of graphene on a SiC layer. Additional products and methods are also presented.
摘要翻译：根据一个实施例的磁盘包括记录层; 以及形成在记录层上方的一层石墨烯。在一些方法中，可以在记录层和石墨烯层之间形成成核层。根据另一实施例的磁性装置包括换能器; 形成在换能器上方的成核层; 并在成核层上形成一层石墨烯。根据一个实施方案的方法包括在磁盘或磁性装置的磁性层上形成成核层; 并在成核层上形成一层石墨烯。根据另一实施例的方法包括在磁盘或磁性装置的磁性层上沉积SiC，所述SiC相当于多个单层厚度; 并表面加热SiC以选择性地从SiC中蒸发出一些Si，以在SiC层上形成一层石墨烯。还介绍了其他产品和方法。

42. 发明授权

US09304690B2 System and method for peer-to-peer PCIe storage transfers 有权
标题翻译：用于对等PCIe存储传输的系统和方法
公开(公告)号：US09304690B2
公开(公告)日：2016-04-05
申请号：US14272214
申请日：2014-05-07
申请人： HGST Netherlands B.V.
发明人： Colin Christopher McCambridge , Christopher William Barr , Adam Christopher Geml
IPC分类号： G06F3/06 , G06F13/40
CPC分类号： G06F3/0613 , G06F3/061 , G06F3/0659 , G06F3/0679 , G06F3/0688 , G06F13/4022 , G06F13/4278 , G06F13/4282 , G06F2206/1014
摘要： Techniques for peer-to-peer Peripheral Component Interconnect Express (PCIe) storage transfers are disclosed. In some embodiments, the techniques may be realized as a method for providing peer-to-peer storage transfers between PCIe devices including providing, in memory of a first PCIe device, a queue for data communicated between the first PCIe device and a target PCIe device, receiving, at the first PCIe device, queue memory allocation information transmitted from a host device communicatively coupled to the first PCIe device and the target PCIe device, and generating, using a computer processor of the first PCIe device, a storage command.
摘要翻译：公开了用于对等的外围组件互连Express（PCIe）存储传输的技术。在一些实施例中，可以将技术实现为用于在PCIe设备之间提供对等存储传输的方法，包括在第一PCIe设备的存储器中提供用于在第一PCIe设备和目标PCIe设备之间传送的数据的队列在第一PCIe设备处接收从通信地耦合到第一PCIe设备和目标PCIe设备的主机设备发送的队列存储器分配信息，以及使用第一PCIe设备的计算机处理器生成存储命令。

43. 发明授权

US09299370B1 MIMO read head with soft bias and split shield 有权
标题翻译：具有柔性偏置和分离屏蔽的MIMO读取头
公开(公告)号：US09299370B1
公开(公告)日：2016-03-29
申请号：US14644564
申请日：2015-03-11
申请人： HGST Netherlands B.V.
发明人： Sharat Batra , Neil Smith , Petrus A. Van Der Heijden , Howard G. Zolla
IPC分类号： G11B5/39
CPC分类号： G11B5/3958 , G11B5/3912 , G11B5/3932
摘要： A system, according to one embodiment, includes a magnetic head having sensor structures disposed laterally along a cross-track direction, each sensor structure having a free layer, a soft bias layer positioned laterally to each sensor structure, an antiparallel coupling layer above each soft bias layer, a magnetic layer above each antiparallel coupling layer, wherein magnetic moments of the soft bias layer and the magnetic layer are antiparallel coupled, and a stabilizing layer above each magnetic layer for stabilizing a magnetic orientation of the magnetic layer. Moreover, opposing faces of the magnetic layers are positioned apart by a distance that causes each magnetic layer to form a magnetic circuit with the associated free layer and the associated soft bias layer.
摘要翻译：根据一个实施例的系统包括具有沿着横向方向横向布置的传感器结构的磁头，每个传感器结构具有自由层，横向于每个传感器结构定位的柔性偏置层，每个柔性层上方的反平行耦合层偏置层，每个反平行耦合层上方的磁性层，其中柔性偏置层和磁性层的磁矩反平行耦合，以及在每个磁性层上方的用于稳定磁性层的磁性取向的稳定层。此外，磁性层的相对表面被隔开一段距离，使得每个磁性层与相关联的自由层和相关联的柔性偏置层形成磁路。

44. 发明授权

US09298624B2 Systems and methods for cache coherence protocol 有权
标题翻译：缓存一致性协议的系统和方法
公开(公告)号：US09298624B2
公开(公告)日：2016-03-29
申请号：US14277492
申请日：2014-05-14
申请人： HGST Netherlands B.V.
发明人： Jin Ren , Ken Qing Yang , Gregory Evan Fedynyshyn
IPC分类号： G06F15/16 , G06F12/08 , G06F3/06 , H04L29/08 , G06F15/167
CPC分类号： G06F12/0833 , G06F3/06 , G06F3/0613 , G06F3/064 , G06F3/065 , G06F3/067 , G06F12/0815 , G06F12/122 , G06F12/128 , G06F15/167 , G06F17/30 , G06F2212/1021 , G06F2212/154 , G06F2212/163 , G06F2212/222 , G06F2212/254 , G06F2212/264 , G06F2212/282 , G06F2212/286 , G06F2212/314 , G06F2212/621 , H04L29/08 , H04L67/1095 , H04L67/1097
摘要： The present disclosure relates to systems, methods, and computer program products for keeping multiple caches updated, or coherent, on multiple servers when the multiple caches contain independent copies of cached data. Example methods may include receiving a request to write data to a block of a first cache associated with a first server in a clustered server environment. The methods may also include identifying a second cache storing a copy of the block, where the second cache is associated with a second server in the clustered environment. The methods may further include transmitting a request to update the second cache with the received write data, and upon receiving a subsequent request to write subsequent data, identifying a third cache for invalidating based on access patterns of the blocks, where the third cache is associated with a third server in the clustered environment.
摘要翻译：本公开涉及当多个高速缓存包含缓存数据的独立副本时，用于在多个服务器上保持多个高速缓存更新或一致的系统，方法和计算机程序产品。示例性方法可以包括在群集服务器环境中接收向与第一服务器相关联的第一缓存的块写入数据的请求。方法还可以包括识别存储该块的副本的第二高速缓存，其中第二高速缓存与群集环境中的第二服务器相关联。所述方法还可以包括：利用所接收的写入数据来发送更新第二高速缓存的请求，以及在接收到写入后续数据的后续请求时，基于块的访问模式识别用于无效的第三高速缓存，其中第三高速缓冲存储器在群集环境中使用第三台服务器。

45. 发明授权

US09293160B1 Magnetic stabilization and scissor design for anomalous hall effect magnetic read sensor 有权
标题翻译：用于异常霍尔效应磁读取传感器的磁稳定和剪刀设计
公开(公告)号：US09293160B1
公开(公告)日：2016-03-22
申请号：US14616621
申请日：2015-02-06
申请人： HGST Netherlands B.V.
发明人： Goran Mihajlovic , Neil Smith
IPC分类号： G11B5/37
CPC分类号： G11B5/37 , G11B5/374
摘要： A system comprising a sensor with a free layer that exhibits an anomalous Hall effect is disclosed. Further, the sensor has a magnetic underlayer below the free layer in a track direction for biasing a magnetic orientation of the free layer in a first magnetic orientation, and a magnetic overlayer above the free layer in the track direction for biasing the magnetic orientation of the free layer in the first magnetic orientation. Still further, the sensor has a lower nonmagnetic spacer layer between the magnetic underlayer and the free layer, and an upper nonmagnetic spacer layer between the magnetic overlayer and the free layer.
摘要翻译：公开了一种包括具有表现出异常霍尔效应的自由层的传感器的系统。此外，传感器在轨道方向上具有在自由层下方的磁性底层，用于在第一磁性取向上偏置自由层的磁性取向，以及在轨道方向上的自由层上方的磁性覆盖层，用于偏置磁性取向自由层在第一磁方向。此外，传感器在磁性底层和自由层之间具有较低的非磁性间隔层，以及在磁性覆盖层和自由层之间的上部非磁性间隔层。

46. 发明申请

US20160078888A1 UNDERLAYER FOR REFERENCE LAYER OF POLYCRYSTALLINE CPP GMR SENSOR STACK 有权
标题翻译：用于多晶CPP GMR传感器堆栈的参考层的底层
公开(公告)号：US20160078888A1
公开(公告)日：2016-03-17
申请号：US14488735
申请日：2014-09-17
申请人： HGST Netherlands B.V.
发明人： Jeffrey Robinson CHILDRESS , Young-Suk CHOI , Tomoya NAKATANI , John Creighton READ
IPC分类号： G11B5/39
CPC分类号： G11B5/3903 , G01R33/093 , G11B5/3906 , G11B2005/3996 , H01L43/08 , H01L43/10
摘要： Embodiments disclosed herein generally relate to a magnetic head having an amorphous ferromagnetic reference layer. The ferromagnetic reference layer may have amorphous structure as a result of an amorphous ferromagnetic underlayer that the ferromagnetic reference layer is deposited thereon. The amorphous ferromagnetic reference layer enhances magnetoresistance, leading to an improved magnetic head.
摘要翻译：本文公开的实施例通常涉及具有非晶铁磁参考层的磁头。作为铁磁参考层沉积在其上的非晶铁磁性底层的结果，铁磁参考层可以具有非晶结构。非晶铁磁参考层增强磁阻，导致改进的磁头。

47. 发明授权

US09286926B1 Two-dimensional magnetic recording (TDMR) disk drive with varying servo track pitch 有权
标题翻译：具有不同伺服磁道间距的二维磁记录（TDMR）磁盘驱动器
公开(公告)号：US09286926B1
公开(公告)日：2016-03-15
申请号：US14834683
申请日：2015-08-25
申请人： HGST Netherlands B.V.
发明人： Abhishek Dhanda , Toshiki Hirano , Tetsuo Semba , Gary Allan Herbst
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/59627 , G11B5/59688
摘要： A two-dimensional magnetic recording (TDMR) disk drive has a disk with servo tracks with a track pitch that varies across the radius of the disk. The servo track pitch (STP) is related to the cross-track spacing (CTS) of the multiple read sensors in the TDMR head structure. The CTS is given by the equation: CTS=(CTO)cos θ+(ATO)sin θ, where θ is the skew angle, and CTO is the cross-track spacing and ATO the along-the-track spacing of the read sensors at zero skew angle. The optimal variable STP profile results in track misregistration reduction because it allows each read sensor to read a different servo half-track and thus noise sources not correlated to noise sources read by the other read sensors. The servo tracks may be arranged into a plurality of annular bands, with the STP in each band being fixed and different from the STP in the other bands.
摘要翻译：二维磁记录（TDMR）磁盘驱动器具有磁盘，其具有在磁盘半径上变化的磁道间距的伺服磁道。伺服磁道间距（STP）与TDMR磁头结构中的多个读取传感器的交叉磁道间隔（CTS）有关。 CTS由下式给出：CTS =（CTO）cos＆Thetas; +（ATO）sin＆thetas;其中＆thetas; 是倾斜角度，CTO是零倾斜角度下读取传感器的轨道间距和ATO沿轨道间距。最佳可变STP曲线导致轨道配准减小，因为它允许每个读取传感器读取不同的伺服半轨迹，并因此读取与其它读取传感器读取的噪声源不相关的噪声源。伺服磁道可以被布置成多个环带，其中每个频带中的STP是固定的，并且与其它频带中的STP不同。

48. 发明授权

US09280994B1 Thermally assisted magnetic recording head with optical spot-size converter attached two dimensional thin waveguide 有权
标题翻译：热辅助磁记录头，带有光学尺寸转换器，附有二维薄波导
公开(公告)号：US09280994B1
公开(公告)日：2016-03-08
申请号：US14493299
申请日：2014-09-22
申请人： HGST Netherlands B.V.
发明人： Yasuhiko Iwanabe
IPC分类号： G11B5/00 , G11B5/48 , G11B5/60
CPC分类号： G11B5/4866 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： One embodiment generally relates to a magnetic recording head. The magnetic recording head has a body having an upper surface and a media bearing surface, a spot size converter disposed in the body and extending from the upper surface to the media bearing surface. The spot size converter has a core, comprising a first portion having a rectangular wall extending below the upper surface; and a second portion having a trapezoidal wall extending below the first portion. The magnetic recording head additionally has a first cladding adjacent to the spot size converter in an in-surface direction of the spot size converter, wherein the first cladding has a first refractive index lower than a refractive index of the spot size converter.
摘要翻译：一个实施例通常涉及磁记录头。磁记录头具有具有上表面和介质承载表面的主体，光斑尺寸转换器设置在主体中并且从上表面延伸到介质支承表面。光斑尺寸转换器具有芯，包括具有在上表面下方延伸的矩形壁的第一部分; 以及具有在所述第一部分下方延伸的梯形壁的第二部分。磁记录头还具有在光斑尺寸转换器的表面方向上与光斑尺寸转换器相邻的第一包层，其中第一包层具有低于光斑尺寸转换器的折射率的第一折射率。

49. 发明授权

US09275667B1 Disk drive servo control system with low power consumption for long seeks 有权
标题翻译：磁盘驱动器伺服控制系统具有低功耗长期寻找
公开(公告)号：US09275667B1
公开(公告)日：2016-03-01
申请号：US14602352
申请日：2015-01-22
申请人： HGST Netherlands B.V.
发明人： MirMehdi L. Abrishamchian , Fred Feng Hong , Peyman Niazi
IPC分类号： G11B5/596
CPC分类号： G11B5/596 , G11B5/5547
摘要： A disk drive has a servo control system that implements just-in-time (JIT) seeks with low power consumption for all long seeks. The servo controller receives a seek command to move the transducer to a target data track and sector, calculates rotational latency from the seek command, and limits the transducer velocity for seeks longer than a predetermined seek length. The servo controller then generates a JIT gain from the calculated rotational latency, modifies the transducer acceleration and deceleration using the JIT gain, and modifies the transducer velocity limit using the JIT gain. Positive current is applied to the actuator to move the transducer with the JIT gain-modified acceleration until the transducer reaches the modified velocity limit. The servo controller determines when to initiate deceleration of the transducer, and applies negative current to the actuator to move the transducer with the JIT gain-modified deceleration until the transducer reaches the target track.
摘要翻译：磁盘驱动器具有伺服控制系统，可以实现即时（JIT）寻求低功耗的所有长期寻求。伺服控制器接收寻道命令以将换能器移动到目标数据轨道和扇区，从寻道命令计算旋转等待时间，并且将探测器速度限制在比预定寻找长度更长的寻道。然后伺服控制器从计算的旋转等待时间产生JIT增益，使用JIT增益修改换能器加速和减速，并使用JIT增益修改换能器速度限制。致动器施加正电流以使JIT增益改变的加速度移动传感器，直到传感器达到修改的速度极限。伺服控制器确定何时启动换能器的减速度，并向执行器施加负电流，以JIT增益修改的减速度移动换能器，直到换能器到达目标轨道。

50. 发明授权

US09274884B2 Encoding and decoding data to accommodate memory cells having stuck-at faults 有权
标题翻译：编码和解码数据以适应存在故障的存储器单元
公开(公告)号：US09274884B2
公开(公告)日：2016-03-01
申请号：US13649098
申请日：2012-10-10
申请人： HGST Netherlands B.V.
发明人： Robert Eugeniu Mateescu , Luiz Franca-Neto , Cyril Guyot , Hessam Mahdavifar , Zvonimir Bandic , Qingbo Wang
IPC分类号： G06F11/00 , G06F11/10 , H03M13/00
CPC分类号： G06F11/1012 , G06F11/1008 , G06F11/108
摘要： A data storage system includes a memory circuit that has memory cells and a control circuit that is operable to receive data bits provided for storage in the memory cells. The control circuit is operable to receive a first matrix. Each row of the first matrix corresponds to a unique one of the data bits. The control circuit is operable to generate a second matrix having only the rows of the first matrix that correspond to the data bits provided for storage in a subset of the memory cells having stuck-at faults. The control circuit is operable to generate a third matrix having linearly independent columns of the second matrix. The control circuit is operable to encode the data bits to generate encoded data bits and redundant bits using the third matrix.
摘要翻译：数据存储系统包括具有存储器单元的存储器电路和可操作以接收提供用于存储在存储器单元中的数据位的控制电路。控制电路可操作以接收第一矩阵。第一矩阵的每行对应于唯一的一个数据位。控制电路可操作以产生仅具有第一矩阵的行的第二矩阵，该第二矩阵对应于提供用于存储在具有卡住故障的存储器单元的子集中的数据位。控制电路可操作以产生具有第二矩阵的线性独立列的第三矩阵。控制电路可操作以对数据位进行编码，以使用第三矩阵生成编码数据位和冗余位。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式