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。

公开(公告)号：US20050044699A1

公开(公告)日：2005-03-03

申请号：US10653046

申请日：2003-08-29

申请人： Gautam Khera ,  Sanford Lewis ,  Galina Moutchaidze ,  Aron Pentek ,  Hugo Santini ,  Mason Williams

发明人： Gautam Khera ,  Sanford Lewis ,  Galina Moutchaidze ,  Aron Pentek ,  Hugo Santini ,  Mason Williams

IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/31

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49025 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A method for fabricating a magnetic head includes forming a first pole and a flux shaping layer in spaced relation to the first pole. A nonmagnetic layer is formed adjacent the flux shaping layer and positioned on an air bearing surface (ABS) side of the flux shaping layer. A tapered recess is created in the nonmagnetic layer, the taper of the recess increasing (i.e., becoming deeper) towards the flux forming layer. The recess is filled with a magnetic material. A probe layer is formed such that it is in electrical communication with the magnetic material filling the recess.

摘要翻译： 用于制造磁头的方法包括形成与第一极间隔开的第一极和磁通形成层。 在磁通形成层附近形成非磁性层，并定位在磁通形成层的空气轴承表面（ABS）侧。 在非磁性层中产生锥形凹部，凹部的锥形朝向焊剂形成层增加（即变深）。 凹部填充有磁性材料。 探针层形成为使得其与填充凹部的磁性材料电连通。

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。

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。

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。

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。

公开(公告)号：US20140112188A1

公开(公告)日：2014-04-24

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： H04L12/28

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。

公开(公告)号：US20100278540A1

公开(公告)日：2010-11-04

申请号：US12837657

申请日：2010-07-16

申请人： Gautam Khera ,  Leigh C. McLellan

发明人： Gautam Khera ,  Leigh C. McLellan

IPC分类号： H04B10/00

CPC分类号： H04L12/56 ,  H04L45/122 ,  H04L45/124 ,  H04L45/20 ,  H04L45/302 ,  H04L45/40 ,  H04L45/62

摘要： A system, device, and method for supporting cut-through pats in an optical communication system involves obtaining hop count and quality of service information by an initiating device and using the hop count and quality of service information by the initiating device to make decisions relating to a cut-through path. The hop count and quality of service information is provided in a reply message that is sent by a terminating device and modified by intermediate devices between the initiating device and the terminating device. The terminating device sends the reply with a hop count equal to one and quality of service information for a first link (hop) toward the initiating device. Each intermediate device increments the hop count in the reply and adds quality of service information for a next link (hop) into the reply.

摘要翻译： 用于在光通信系统中支持直通拍摄的系统，设备和方法包括通过发起设备获取跳数和服务质量信息，并且通过启动设备使用跳数和服务质量信息来做出与 一条直通路径。 在终端设备发送并由中间设备在启动设备和终接设备之间进行修改的应答消息中提供跳数和服务质量信息。 终端设备向发起设备发送跳数等于1的回复和第一链路（跳）的服务质量信息。 每个中间设备增加回复中的跳数，并将下一个链路（跳）的服务质量信息添加到回复中。

公开(公告)号：US07773878B2

公开(公告)日：2010-08-10

申请号：US11532974

申请日：2006-09-19

申请人： Gautam Khera ,  Leigh C. McLellan

发明人： Gautam Khera ,  Leigh C. McLellan

IPC分类号： H04J14/00 ,  H04B17/00 ,  H04L12/28

CPC分类号： H04L12/56 ,  H04L45/122 ,  H04L45/124 ,  H04L45/20 ,  H04L45/302 ,  H04L45/40 ,  H04L45/62

摘要： A system, device, and method for supporting cut-through pats in an optical communication system involves obtaining hop count and quality of service information by an initiating device and using the hop count and quality of service information by the initiating device to make decisions relating to a cut-through path. The hop count and quality of service information is provided in a reply message that is sent by a terminating device and modified by intermediate devices between the initiating device and the terminating device. The terminating device sends the reply with a hop count equal to one and quality of service information for a first link (hop) toward the initiating device. Each intermediate device increments the hop count in the reply and adds quality of service information for a next link (hop) into the reply.

摘要翻译： 用于在光通信系统中支持直通拍摄的系统，设备和方法包括通过发起设备获取跳数和服务质量信息，并且通过启动设备使用跳数和服务质量信息来做出与 一条直通路径。 在终端设备发送并由中间设备在启动设备和终接设备之间进行修改的应答消息中提供跳数和服务质量信息。 终端设备向发起设备发送跳数等于1的回复和第一链路（跳）的服务质量信息。 每个中间设备增加回复中的跳数，并将下一个链路（跳）的服务质量信息添加到回复中。

公开(公告)号：US20090222541A1

公开(公告)日：2009-09-03

申请号：US12096238

申请日：2006-11-06

申请人： Indermohan Monga ,  Garth Jenkins ,  Gautam Khera

发明人： Indermohan Monga ,  Garth Jenkins ,  Gautam Khera

IPC分类号： G06F15/177 ,  G06F15/173 ,  H04L9/32 ,  G06F17/30

CPC分类号： H04L61/1541 ,  H04L29/12113 ,  H04L2012/4026 ,  H04W8/26 ,  H04W40/00 ,  H04W60/00 ,  H04W84/18

摘要： A scalable network architecture adapted to interface with various sensor types and sensor access mechanisms while providing real-time access to sensor data for distributed applications and organizations is described. A centralized sensor network service manages the registration, capabilities, near real-time status of the sensors and their current network connections. New sensors are discovered automatically through messaging between network access nodes and the sensor registry. The registry service can be made available to distributed sensor applications and sensor middleware, and facilitates the sharing of sensors across organizations. The sensor registry is automatically updated by network software and does not require manual configuration or reconfiguration each time a sensor is added to or relocated within the network. Authentication and authorization policies can be implemented to ensure that only authorized applications can query and view the registry. The registry can be implemented for multi-vendor sensor networks and can accommodate multiple addressing schemes.

摘要翻译： 描述了适用于与各种传感器类型和传感器访问机制接口的可扩展网络架构，同时为分布式应用程序和组织提供对传感器数据的实时访问。 集中的传感器网络服务管理传感器及其当前网络连接的注册，功能，接近实时状态。 通过网络访问节点和传感器注册表之间的消息传递自动发现新的传感器。 可以将注册表服务提供给分布式传感器应用程序和传感器中间件，并有助于跨机构共享传感器。 传感器注册表由网络软件自动更新，每次在网络中添加或重新定位传感器时，不需要手动配置或重新配置。 可以实现身份验证和授权策略，以确保只有授权的应用程序可以查询和查看注册表。 注册表可以实现多供应商传感器网络，并可以适应多种寻址方案。