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    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece
    5.
    发明申请
    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece 失效
    具有与第一极片磁耦合的写入屏蔽的垂直记录磁头

    公开(公告)号：US20050024766A1

    公开(公告)日：2005-02-03

    申请号：US10631642

    申请日：2003-07-30

    申请人： Gautam Khera ,  Quang Le ,  Son Nguyen ,  Aron Pentek ,  Mason Williams

    发明人： Gautam Khera ,  Quang Le ,  Son Nguyen ,  Aron Pentek ,  Mason Williams

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/33

    CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

    摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.

    摘要翻译： 垂直记录写头具有在后隙连接的铁磁第一和第二极片，并且其中嵌有写入线圈层的绝缘堆叠位于第一和第二极靴之间以及写头的头表面和 背隙。 第二极片具有位于头表面的极尖和凹陷的铁磁写屏蔽层。 非磁性隔离层位于第二极靴和写入屏蔽层之间，并且至少一个铁磁螺柱磁性地连接在第一极靴层和写入屏蔽层之间，并位于头部表面和绝缘堆叠之间。

    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece
    6.
    发明授权
    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece 失效
    具有与第一极片磁耦合的写入屏蔽的垂直记录磁头

    公开(公告)号：US07031121B2

    公开(公告)日：2006-04-18

    申请号：US10631642

    申请日：2003-07-30

    申请人： Gautam Khera ,  Quang Le ,  Son Van Nguyen ,  Aron Pentek ,  Mason Lamar Williams, III

    发明人： Gautam Khera ,  Quang Le ,  Son Van Nguyen ,  Aron Pentek ,  Mason Lamar Williams, III

    IPC分类号： G11B5/127 ,  G11B5/11

    CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

    摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.

    摘要翻译： 垂直记录写头具有在后隙连接的铁磁第一和第二极片，并且其中嵌有写入线圈层的绝缘堆叠位于第一和第二极靴之间以及写头的头表面和 背隙。 第二极片具有位于头表面的极尖和凹陷的铁磁写屏蔽层。 非磁性隔离层位于第二极靴和写入屏蔽层之间，并且至少一个铁磁螺柱磁性地连接在第一极靴层和写入屏蔽层之间，并位于头部表面和绝缘堆叠之间。

    SEPARATION OF EDGE AND ROUTING/CONTROL INFORMATION FOR MULTICAST OVER SHORTEST PATH BRIDGING
    8.
    发明申请
    SEPARATION OF EDGE AND ROUTING/CONTROL INFORMATION FOR MULTICAST OVER SHORTEST PATH BRIDGING 有权
    分离通道和路径/控制信息，用于跨越短路径桥路

    公开(公告)号：US20130077626A1

    公开(公告)日：2013-03-28

    申请号：US13242422

    申请日：2011-09-23

    申请人： Srikanth Keesara ,  Gautam Khera ,  Rama S. Apalla

    发明人： Srikanth Keesara ,  Gautam Khera ,  Rama S. Apalla

    IPC分类号： H04L12/56

    CPC分类号： H04L45/66

    摘要： Techniques disclosed herein include systems and methods for providing a scalable solution to transmit edge IP Multicast sender information in a Shortest Path Bridging (SPB) network. Control information is exchanged between Ingress Backbone Edge Bridges and Egress Backbone Edge Bridges using Multicast Flow Specific and type-length-value (TLV) structures, or other control messages, to announce available multicast streams at ingress nodes within the SPB network. Such exchanges of control messages trigger sending SPB specific Intermediate System To Intermediate System (IS-IS) TLV control message with path computation information via IS-IS control messages. This second set of control messages is exchanged within the SPB network and includes source-specific multicast stream information that is used by Backbone Core Bridges to establish a multicast forward state and compute multicast forwarding paths. Multicast data traffic can then be transmitted through the SPB network using a one-to-many distribution model.

    摘要翻译： 本文公开的技术包括用于提供可扩展解决方案以在最短路径桥接（SPB）网络中传送边缘IP多播发送者信息的系统和方法。 使用组播流特定和类型长度值（TLV）结构或其他控制消息在Ingress Backbone Edge Bridges和Egress Backbone Edge Bridges之间交换控制信息，以在SPB网络内的入口节点上宣布可用的组播流。 这种交换控制消息通过IS-IS控制消息触发发送SPB特定的具有路径计算信息的中间系统到中间系统（IS-IS）TLV控制消息。 该第二组控制消息在SPB网络内进行交换，并包括由Backbone Core Bridges用于建立组播转发状态并计算组播转发路径的源特定组播流信息。 然后可以使用一对多分布模型通过SPB网络传输组播数据流量。

    Ion mill process with sacrificial mask layer to fabricate pole tip for perpendicular recording
    9.
    发明申请
    Ion mill process with sacrificial mask layer to fabricate pole tip for perpendicular recording 失效
    离子磨工艺用牺牲掩模层制造极尖用于垂直记录

    公开(公告)号：US20050066517A1

    公开(公告)日：2005-03-31

    申请号：US10676728

    申请日：2003-09-30

    申请人： Daniel Bedell ,  Tom Harris ,  Gautam Khera

    发明人： Daniel Bedell ,  Tom Harris ,  Gautam Khera

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： G11B5/33 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/4906

    摘要： A method of fabrication of the write head of a perpendicular recording head allows for production of P3 pole tips of width less than 200 nm (200×10−9 meters). The method includes fabricating the P2 flux shaping layer, depositing the P3 layer, depositing a layer of ion-milling resistant material, depositing at least one sacrificial layer, shaping the P3 layer into P3 pole tip, removing the at least one sacrificial layer to leave the P3 pole tip, and encapsulating the P3 pole tip.

    摘要翻译： 制造垂直记录头的写入头的方法允许制造宽度小于200nm（200×10 -9米）的P3极尖。 该方法包括制造P2通量成形层，沉积P3层，沉积抗离子碾磨材料层，沉积至少一个牺牲层，将P3层成形为P3极尖，去除至少一个牺牲层以离开 P3极尖，并封装P3极尖。

    Architecture for virtualization and distribution of routing information used in a transport network
    10.
    发明授权
    Architecture for virtualization and distribution of routing information used in a transport network 有权
    用于传输网络中使用的路由信息​​的虚拟化和分发的架构

    公开(公告)号：US09413637B2

    公开(公告)日：2016-08-09

    申请号：US13656862

    申请日：2012-10-22

    申请人： Srikanth Keesara ,  Rama Suryanarayana Appala ,  Gautam Khera

    发明人： Srikanth Keesara ,  Rama Suryanarayana Appala ,  Gautam Khera

    IPC分类号： H04L12/761 ,  H04L12/751 ,  H04L12/715 ,  H04L12/721 ,  H04L12/753

    CPC分类号： H04L45/16 ,  H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/48

    摘要： A method, apparatus and computer program product for distribution of routing information used in a transport network is presented. In a transport network having a plurality of edge devices and core devices, a main instance of a protocol is used for shortest path and tree computation. A multicast tree is defined per Virtual Services Network (VSN) to distribute Link State Data Base (LSDB) updates that only apply to members of said VSN. Multicast trees are built using a secondary instance of the control protocol LSDB and wherein each VSN multicast tree represents a separate instance of the secondary instance of the control protocol LSD. LSDB updates are distributed that only apply to members of the VSN using the multicast tree for the VSN.

    摘要翻译： 提出了一种用于分发在传输网络中使用的路由信息​​的方法，装置和计算机程序产品。 在具有多个边缘设备和核心设备的传输网络中，协议的主要实例用于最短路径和树计算。 每个虚拟服务网络（VSN）定义多播树，以分发仅适用于所述VSN的成员的链路状态数据库（LSDB）更新。 使用控制协议LSDB的辅助实例构建组播树，其中每个VSN组播树表示控制协议LSD的辅助实例的单独实例。 分布式LSDB更新仅适用于使用VSN的组播树的VSN成员。