公开(公告)号：US07046619B2

公开(公告)日：2006-05-16

申请号：US10045955

申请日：2001-11-06

申请人： Sridhar Alagar ,  Brian Pheiffer ,  Rohit Sharma ,  Stephane St. Laurent ,  Holden D. Jessup ,  Rainer Iraschko

发明人： Sridhar Alagar ,  Brian Pheiffer ,  Rohit Sharma ,  Stephane St. Laurent ,  Holden D. Jessup ,  Rainer Iraschko

IPC分类号： H04L1/00

CPC分类号： H04J14/0295 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04J14/0291 ,  H04J14/0294 ,  H04J2203/0042 ,  H04J2203/006 ,  H04L1/22

摘要： A system for use in a bi-directional path switched ring network for detecting a failed optical path and establishing a protection path so as to allow signals from the failed optical path to be re-routed via the protection path is provided. According to one aspect of the system, upon detecting a failure relating to an optical path, the destination node generates a connection request message for transmission to the source node. The connection request message is passed to the source node via one or more intermediate nodes, if any. Each intermediate node examines the connection request message accordingly reserves the requisite wavelength from the protection capacity so as to allow signals from the failed optical path to be re-routed. Upon receiving the connection request message, the source node readies its switching equipment to re-route signals from the failed optical path and generates an acknowledgment message and propagates it back to the destination node via the intermediate nodes. The intermediate nodes and the destination node, upon receipt of the acknowledgement message, also ready their respective switching equipment to carry the re-routed signals via the previously reserved wavelength from the protection capacity. According to another aspect of the system, a contention resolution mechanism is provided to resolve contending connection request messages received at a node requesting the same wavelength to be reserved from the protection capacity for different failed optical paths. A message format is used for the connection request which allows the connection request message to include information relating to the type of failure experienced by a failed optical path and other priority data. Such information is then used by a node to determine priority between two contending connection request messages.

摘要翻译： 提供一种用于双向路径交换环网的系统，用于检测故障光路并建立保护路径，以便允许来自故障光路的信号经由保护路径重新路由。 根据系统的一个方面，在检测到与光路相关的故障时，目的节点生成用于传输到源节点的连接请求消息。 连接请求消息通过一个或多个中间节点（如果有的话）被传递到源节点。 相应地，检查连接请求消息的每个中间节点保留来自保护容量的所需波长，以便允许来自故障光路的信号被重新路由。 在接收到连接请求消息时，源节点准备其交换设备以重新路由来自故障光路的信号，并产生确认消息，并经由中间节点将其传播回目的地节点。 中间节点和目的地节点在接收到确认消息时也准备好它们各自的交换设备，以经由先前保留的波长从保护容量携带重新路由的信号。 根据该系统的另一方面，提供了一种争用解决机制，以解决在针对不同的故障光路径的保护容量中要求保留相同波长的节点处接收到的竞争连接请求消息。 用于连接请求的消息格式，其允许连接请求消息包括与由故障光路和其他优先级数据经历的故障类型有关的信息。 这样的信息然后被节点用来确定两个竞争连接请求消息之间的优先级。

公开(公告)号：US07366098B1

公开(公告)日：2008-04-29

申请号：US10222275

申请日：2002-08-15

申请人： Raja Rangarjan ,  Ashish Gupta ,  Rohit Sharma ,  Naresh Kumar Sharma ,  Frederic Mathieu ,  Jayakumar Jayakumar

发明人： Raja Rangarjan ,  Ashish Gupta ,  Rohit Sharma ,  Naresh Kumar Sharma ,  Frederic Mathieu ,  Jayakumar Jayakumar

IPC分类号： H04L12/26 ,  H04J3/14 ,  G08C15/00 ,  G06F11/00

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/27 ,  H04L47/28

摘要： A method is described that resets a first count and resets a second count if a first transmission unit is recognized as being within a new measurement time window. The first transmission unit has a size. The method also increments the first count by the first transmission unit size and by the size of each subsequent transmission unit that is received within the new measurement time window after the first transmission unit—so long as the first count does not exceed a maximum allowable value for the first count. The method also checks if a maximum value for the second count is exceeded if it is incremented by a second transmission unit size. The second transmission unit is received within the measurement time window. The check is in response to a determination that the first count would have exceeded the first count maximum allowable valuable if the first count were incremented by the second transmission unit size.

摘要翻译： 描述了如果第一传输单元被识别为在新的测量时间窗内，则复位第一计数并复位第二计数的方法。 第一传输单元具有大小。 该方法还通过第一传输单元大小和在第一传输单元之后的新测量时间窗口内接收的每个后续传输单元的大小来增加第一计数 - 只要第一计数不超过最大允许值 为第一个计数。 该方法还检查是否超过第二个计数的最大值，如果它增加了第二个传输单元大小。 在测量时间窗口内接收第二传输单元。 该检查是响应于确定第一计数将超过第一计数最大允许值，如果第一计数增加第二传输单元大小。

公开(公告)号：US20070212700A1

公开(公告)日：2007-09-13

申请号：US11518590

申请日：2006-09-07

申请人： Rama Ranganathan ,  William Russ ,  Christopher Larson ,  Rohit Sharma

发明人： Rama Ranganathan ,  William Russ ,  Christopher Larson ,  Rohit Sharma

IPC分类号： C12Q1/68 ,  G06F19/00

CPC分类号： G16B30/00 ,  G16B20/00 ,  G16B40/00

摘要： Methods of using biological sequence data. Evolved biological sequences may be used to identify the defining biological characteristics of the sequences—the three-dimensional structure and biochemical function. Some of the present methods extract such information, use such information to predict functional mechanism, and/or use such information in the design of artificial biological sequences. Other methods are included, as are related computer readable media and computer systems.

摘要翻译： 使用生物序列数据的方法。 演化的生物学序列可用于鉴定序列的定义生物学特征 - 三维结构和生物化学功能。 本方法中的一些提取这些信息，使用这样的信息来预测功能机制，和/或在设计人造生物序列时使用这些信息。 还包括其他方法，以及相关的计算机可读介质和计算机系统。

公开(公告)号：US06885822B1

公开(公告)日：2005-04-26

申请号：US09875243

申请日：2001-06-05

申请人： Hon Wah Chin ,  Rohit Sharma ,  Holden Jessup ,  Denis Zaccarin

发明人： Hon Wah Chin ,  Rohit Sharma ,  Holden Jessup ,  Denis Zaccarin

IPC分类号： H04B10/213 ,  H04J3/08 ,  H04J14/02 ,  G02F1/00 ,  H04B10/20

CPC分类号： H04J14/0227 ,  H04J3/085 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0295

摘要： In a ring having first and second adjacent nodes, and two fibers carrying information between the first and second nodes, the first fiber carries information in one direction, while the second fiber carries information in another direction. Each fiber includes wavelength capacity allocated to working and protection traffic. The working and protection wavelength capacities in the first fiber are respectively assigned to first and second disjoint sets of wavelengths, while the working and protection wavelength capacities in the second fiber are respectively assigned to the second and first disjoint sets of wavelengths.

摘要翻译： 在具有第一和第二相邻节点的环中，以及在第一和第二节点之间承载信息的两个光纤，第一光纤沿一个方向传送信息，而第二光纤在另一个方向上传送信息。 每个光纤包括分配给工作和保护流量的波长容量。 第一光纤中的工作和保护波长容量分别被分配给第一和第二不相交的波长组，而第二光纤中的工作和保护波长容量分别被分配给第二和第一不相交的波长组。

公开(公告)号：US07187683B1

公开(公告)日：2007-03-06

申请号：US10013386

申请日：2001-12-07

申请人： John Sandoval ,  Virendra Patel ,  Frederic Mathieu ,  Jayakumar Jayakumar ,  Rohit Sharma

发明人： John Sandoval ,  Virendra Patel ,  Frederic Mathieu ,  Jayakumar Jayakumar ,  Rohit Sharma

IPC分类号： H04L12/28

CPC分类号： H04L41/142 ,  H04L43/04

摘要： A statistics data collection mechanism for distributed, high-speed data processing environments is described. According to one embodiment, an update message containing statistics data related to a data packet carried along a virtual connection is assembled and the update message is then transmitted to a statistics collection engine for further processing. According to another embodiment, the update message is received from one or more processing devices, and multiple counters are then updated to store the statistics data.

摘要翻译： 描述了用于分布式高速数据处理环境的统计数据收集机制。 根据一个实施例，组装包含与虚拟连接携带的数据分组有关的统计数据的更新消息，并且将更新消息发送到统计收集引擎用于进一步处理。 根据另一个实施例，从一个或多个处理设备接收更新消息，然后更新多个计数器以存储统计数据。

公开(公告)号：US07130758B2

公开(公告)日：2006-10-31

申请号：US10813437

申请日：2004-03-31

申请人： Kirti Srivastava ,  Rohit Sharma ,  Bushra Fatima ,  R. N. Singh

发明人： Kirti Srivastava ,  Rohit Sharma ,  Bushra Fatima ,  R. N. Singh

IPC分类号： G01K17/00

CPC分类号： G06F17/13

摘要： Analytical solutions to error bounds on the temperature depth distribution have been given in this invention. Solving the one dimensional steady state heat conduction equation for different sets of boundary conditions and radiogenic heat generation and incorporating Gaussian randomness in the thermal conductivity analytical closed form solutions to the mean and variance in the temperature depth distribution have been obtained. These closed form analytical solutions of mean and variance for the temperature field for different conditions have been used to compute and display the plot and results of the temperature depth profiles along with its error bounds. Quantifying the error statistics in the system output due to errors in the system input is very essential for a better evaluation of the system behavior. Earth Scientists involved in understanding the subsurface thermal structure relevant to geodynamical studies will benefit using these findings.

摘要翻译： 在本发明中给出了对温度深度分布的误差界限的解析解。 解决了不同组边界条件和放射性热产生的一维稳态热传导方程，并将热导率分析闭式解中的高斯随机性与温度深度分布的均值和方差结合起来。 这些用于不同条件的温度场的平均值和方差分析解析解已被用于计算和显示温度深度剖面图及其误差范围。 由于系统输入中的错误，量化系统输出中的错误统计信息对于更好地评估系统行为非常重要。 参与理解与地球动力学研究相关的地下热结构的地球科学家将受益于这些发现。

公开(公告)号：US20060053216A1

公开(公告)日：2006-03-09

申请号：US11083712

申请日：2005-03-18

申请人： Vipul Deokar ,  Rohit Sharma

发明人： Vipul Deokar ,  Rohit Sharma

IPC分类号： G06F15/173

CPC分类号： H04L41/042 ,  G06F9/5061 ,  G06F21/6218 ,  G06F2209/505 ,  H04L41/0206 ,  H04L41/28

摘要： Systems and methods for a computer cluster and for conducting user sessions in a managed enterprise computer network. A cluster includes multiple inter-connected nodes with specific roles. Master nodes administer and monitor slave nodes and the slave nodes are used to conduct user sessions with users through terminal nodes that provide an interface to the cluster. The cluster also may include server nodes that provide network services. Master nodes also control admittance to the cluster of external nodes and sub-clusters. Admin nodes form a control plane used to control and administer the cluster through the master nodes. The cluster provides a virtual environment for the user session that is built from at least an operating system image, an application image and other data needed for the user session.

摘要翻译： 用于计算机集群的系统和方法以及在受管企业计算机网络中进行用户会话。 集群包括具有特定角色的多个互连节点。 主节点管理和监控从节点，从节点用于通过为集群提供接口的终端节点与用户进行用户会话。 集群还可以包括提供网络服务的服务器节点。 主节点还控制外部节点和子集群的导纳。 管理节点形成用于通过主节点控制和管理集群的控制平面。 集群为至少由操作系统映像，应用程序映像和用户会话所需的其他数据构建的用户会话提供虚拟环境。

公开(公告)号：US06839514B1

公开(公告)日：2005-01-04

申请号：US09714378

申请日：2000-11-15

申请人： Rohit Sharma ,  Larry R. McAdams

发明人： Rohit Sharma ,  Larry R. McAdams

IPC分类号： H04Q11/00 ,  G02F1/00 ,  H01S3/00 ,  H04B10/00

CPC分类号： H04J14/0295 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0291 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0049 ,  H04Q2011/0081

摘要： Techniques for providing normal operation and service restoration capability in the event of failure of terminal equipment or transmission media in a heterogeneous network, such as a hybrid network containing single- and multi-wavelength lightwave communications systems. An optical switching node (OSN) is placed at each node in the ring network to provide the required connections between various fibers and terminal equipment, but having switch states that allow signals on the protection fibers to bypass the terminal equipment at that node. Ring-switched signals propagate around the ring on protection fibers without encountering the terminal equipment at the intervening nodes. To the extent that the protection fiber links between any given pair of nodes are incapable of supporting all the relevant communication regimes, such links are modified to provide such support.

摘要翻译： 在诸如包含单波长和多波长光波通信系统的混合网络的异构网络中的终端设备或传输介质故障的情况下提供正常操作和服务恢复能力的技术。 光交换节点（OSN）被放置在环形网络中的每个节点处，以提供各种光纤和终端设备之间所需的连接，但具有允许保护光纤上的信号绕过该节点处的终端设备的开关状态。 环形信号在保护光纤上环绕传播环绕，而不会在中间节点处遇到终端设备。 在任何给定的节点对之间的保护光纤链接不能支持所有相关通信方式的情况下，修改这些链路以提供这种支持。

公开(公告)号：US06437280B1

公开(公告)日：2002-08-20

申请号：US09661675

申请日：2000-09-14

申请人： Rohit Sharma

发明人： Rohit Sharma

IPC分类号： B23K1100

CPC分类号： B23H9/00 ,  B41J9/133

摘要： A method of forming a printer tip on a metal printer hammer spring by providing a printer tip from a range of materials from the group consisting of sintered tungsten carbide, cemented tungsten carbide, composite ceramics, metallic materials, noble metals, metal carbides, borides, nitrides and alloys and mixtures thereof. The printer tip is pressed against the hammerspring while electrically softening the printer hammerspring through a voltage established by an electrode contacting the printer tip. A plating or coating of the printer tip beforehand can be undertaken with a conductive metallic material disposed on the surface of the printer tip. The printer tip is fused to the hammerspring and a milling of a desired form to the printer tip and hammerspring by an electrode discharge milling process can take place thereafter.

摘要翻译： 通过从由烧结碳化钨，硬质合金碳化钨，复合陶瓷，金属材料，贵金属，金属碳化物，硼化物等组成的组的材料范围提供打印头，在金属打印机锤簧上形成打印头尖端的方法， 氮化物及其合金及其混合物。 打印机尖端被压靠在锤子上，同时通过接触打印头尖端的电极所建立的电压使打印机锤击。 可以预先用设置在打印头尖端的表面上的导电金属材料进行打印头的电镀或涂层。 打印头尖端与锤子熔接，并且可以通过电极排出铣削工艺将期望的形式铣削到打印头尖端并且进行锤击。

公开(公告)号：US09608938B2

公开(公告)日：2017-03-28

申请号：US14457660

申请日：2014-08-12

申请人： Sivakumar Venkatesan ,  Mayuresh Bakshi ,  Rohit Sharma

发明人： Sivakumar Venkatesan ,  Mayuresh Bakshi ,  Rohit Sharma

IPC分类号： H04L12/26 ,  G01R31/08 ,  H04L12/935 ,  H04L12/931 ,  H04L12/947

CPC分类号： H04L49/3009 ,  H04L43/0894 ,  H04L49/25 ,  H04L49/506

摘要： A method and system for tracking and managing network flows including receiving a first flow counter value for a flow of first flows and determining that the flow is an elephant flow. The method further includes obtaining flow egress port information by determining an egress port on a switch for each of the first flows, obtaining port congestion information for the switch, where the port congestion information includes port congestion data for each egress port, and selecting, based on the port congestion information and the flow egress port information, a new egress port for the flow, and sending a request to update a switch chip on the switch, where the request specifies that subsequently received packets for the flow are to be forwarded out of the new egress port.