公开(公告)号：US20140208072A1

公开(公告)日：2014-07-24

申请号：US13858034

申请日：2013-04-06

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Srihari Cadambi ,  Kunal Rao ,  Srimat T. Chakradhar ,  Rajat Phull ,  Giuseppe Coviello ,  Murugan Sankaradass ,  Cheng-Hong Li

IPC: G06F9/48

CPC classification number: G06F9/5044 ,  G06F9/5033 ,  G06F2209/509

Abstract: A method is disclosed to manage a multi-processor system with one or more multiple-core coprocessors by intercepting coprocessor offload infrastructure application program interface (API) calls; scheduling user processes to run on one of the coprocessors; scheduling offloads within user processes to run on one of the coprocessors; and affinitizing offloads to predetermined cores within one of the coprocessors by selecting and allocating cores to an offload, and obtaining a thread-to-core mapping from a user.

Abstract translation: 公开了一种通过拦截协处理器卸载基础设施应用程序接口（API）调用来管理具有一个或多个多核协处理器的多处理器系统的方法; 调度用户进程以在一个协处理器上运行; 在用户进程内调度卸载以在一个协处理器上运行; 并且通过选择和分配核到卸载来将卸载到一个协处理器内的预定内核，并从用户获得线程到核心的映射。

公开(公告)号：US20140198751A1

公开(公告)日：2014-07-17

申请号：US14156064

申请日：2014-01-15

Applicant: NEC Laboratories America, Inc.

Inventor： Narayan Prasad ,  Guosen Yue ,  Sampath Rangarajan

IPC: H04L5/00

CPC classification number: H04B7/0632 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0639 ,  H04L5/0048 ,  H04L5/0073

Abstract: A method implemented in a base station used in a wireless communications system where different antenna arrays are employed for transmissions to different co-scheduled users in a cell is disclosed. The method includes configuring multiple channel state information (CSI) processes for a user equipment (UE), and configuring, for the UE, a plurality of non-zero power (NZP) CSI reference signal (RS) resources, each of which is associated with an antenna array. Other apparatuses, systems, and methods also are disclosed.

Abstract translation: 公开了一种在无线通信系统中使用的基站中实现的方法，其中使用不同的天线阵列来传送到小区中的不同共同调度用户。 该方法包括为用户设备（UE）配置多个信道状态信息（CSI）过程，以及为UE配置多个非零功率（NZP）CSI参考信号（RS）资源，每个资源相关联 与天线阵列。 还公开了其他装置，系统和方法。

公开(公告)号：US20140147120A1

公开(公告)日：2014-05-29

申请号：US14085000

申请日：2013-11-20

Applicant: NEC Laboratories America, Inc.

Inventor： Ankitkumar N. Patel ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02

CPC classification number: H04J14/0238 ,  H04J14/0257 ,  H04J14/0267 ,  H04L45/16

Abstract: The present invention is directed to a solution for grooming multicast traffic in flexible optical wavelength division multiplexing WDM networks. The invention includes a solution for grooming multicast traffic in flexible optical wavelength division multiplexing networks into a solving a multicast routing sub-problem, solving a a grooming sub-problem; and solving a wavelength assignment and spectrum allocation sub-problem.

Abstract translation: 本发明涉及一种用于在柔性光波分复用WDM网络中整理组播业务的解决方案。 本发明包括将柔性光波分复用网络中的组播流量整理为解决组播路由子问题，解决梳理子问题的解决方案; 并解决波长分配和频谱分配子问题。

公开(公告)号：US20140140429A1

公开(公告)日：2014-05-22

申请号：US14083537

申请日：2013-11-19

Applicant: NEC Laboratories America, Inc.

Inventor： Narayan Prasad

IPC: H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0465

Abstract: There is provided a method for generating transmit precoders for a communication system having a plurality of transmitters and a plurality of receivers forming a plurality of transmitter-receiver pairs. Each of the transmitters and receivers has a respective plurality of antennas. The method includes initializing the transmit precoders. The method further includes updating a plurality of receiver filters and a plurality of slack variables using closed form expressions. The method also includes updating the transmit precoders responsive to an output of said prior updating step. The method additionally includes iteratively repeating the updating steps until convergence is reached to obtain a final set of transmit precoders. The transmit precoders are updated to perform precoding for multiple stream data transmission for each of the plurality of transmitter-receiver pairs on each of a plurality of slots under a per-antenna power constraint imposed on each of the plurality of antennas.

Abstract translation: 提供了一种用于生成具有多个发射机的通信系统和形成多个发射机 - 接收机对的多个接收机的发射预编码器的方法。 每个发射机和接收机具有相应的多个天线。 该方法包括初始化发送预编码器。 该方法还包括使用闭合形式表达式更新多个接收器滤波器和多个松弛变量。 该方法还包括响应于所述先前更新步骤的输出更新发送预编码器。 该方法另外包括迭代地重复更新步骤，直到达到收敛以获得最终的发送预编码集合。 更新发射预编码器以在施加在多个天线中的每一个上的每天线功率约束下，在多个时隙中的每一个上对多个发射机 - 接收机对中的每一个执行多个流数据传输的预编码。

公开(公告)号：US20140132727A1

公开(公告)日：2014-05-15

申请号：US14073794

申请日：2013-11-06

Applicant: NEC Laboratories America, Inc.

Inventor： Manmohan Chandraker

IPC: H04N13/02

CPC classification number: G06T7/0055 ,  G06T7/514 ,  G06T7/55

Abstract: Systems and methods are disclosed for determining three dimensional (3D) shape by capturing with a camera a plurality of images of an object in differential motion; derive a general relation that relates spatial and temporal image derivatives to BRDF derivatives; exploiting rank deficiency to eliminate BRDF terms and recover depth or normal for directional lighting; and using depth-normal-BRDF relation to recover depth or normal for unknown arbitrary lightings.

Abstract translation: 公开了用于通过用相机捕获差分运动中的对象的多个图像来确定三维（3D）形状的系统和方法; 导出将空间和时间图像衍生物与BRDF衍生物相关联的一般关系; 利用职级缺陷消除BRDF术语，恢复定向照明的深度或正常; 并使用深度正常BRDF关系恢复未知任意照明的深度或正常。

公开(公告)号：US20140122388A1

公开(公告)日：2014-05-01

申请号：US14064949

申请日：2013-10-28

Applicant: NEC Laboratories America, Inc.

Inventor： Bing Bai ,  Christopher Malon ,  lain Melvin

IPC: G06N99/00

CPC classification number: G06N99/005 ,  G06F17/30864

Abstract: Semantic indexing methods and systems are disclosed. One such method is directed to training a semantic indexing model by employing an expanded query. The query can be expanded by merging the query with documents that are relevant to the query for purposes of compensating for a lack of training data. In accordance with another exemplary aspect, time difference features can be incorporated into a semantic indexing model to account for changes in query distributions over time.

Abstract translation: 公开了语义索引方法和系统。 一种这样的方法旨在通过使用扩展查询来训练语义索引模型。 通过将查询与与查询相关的文档合并，可以扩展查询，以补偿缺乏培训数据。 根据另一示例性方面，可以将时差特征并入到语义索引模型中以考虑随时间的查询分布的变化。

公开(公告)号：US20140063592A1

公开(公告)日：2014-03-06

申请号：US14019015

申请日：2013-09-05

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Ezra Ip

IPC: H01S3/13

CPC classification number: H01S3/1302 ,  H01S3/0078 ,  H01S3/0085 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/0804 ,  H01S3/094003 ,  H01S3/10015 ,  H01S3/1608 ,  H04B10/2581 ,  H04B10/293

Abstract: Disclosed herein are methods, structures and systems for few-mode fiber (FMF) transmission including an optical amplifier exhibiting modal gain control suitable for such transmission in which higher order modes are amplified. An exemplary evaluation system is described and results presented.

Abstract translation: 这里公开了用于多模光纤（FMF）传输的方法，结构和系统，其包括具有适用于其中放大高阶模的这种传输的模态增益控制的光放大器。 描述了一个示例性的评估系统并提出了结果。

公开(公告)号：US20130346360A1

公开(公告)日：2013-12-26

申请号：US13858476

申请日：2013-04-08

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Ziyang Liu ,  Vahit Hakan Hacigumus

IPC: G06F17/30

CPC classification number: G06F17/30289 ,  G06Q10/0639

Abstract: A method for database consolidation includes generating a model for expected penalty estimation; determining a tenant's value as a function of query arrival rate and SLA penalty; placing a tenant to minimize a total expected cost in the order of the tenant value; and progressively using additional servers to prevent any server from being saturated to guarantee a tenant placement that costs no more than four times the cost of any other placement

Abstract translation: 数据库合并的方法包括生成预期罚球估计的模型; 确定租户的价值作为查询到达率和SLA罚款的函数; 将租户按租户价值的顺序最小化总预计成本; 并逐步使用额外的服务器来防止任何服务器饱和，以保证租户的安置成本不超过任何其他安置费用的四倍

公开(公告)号：US20130332910A1

公开(公告)日：2013-12-12

申请号：US13874890

申请日：2013-05-01

Applicant: NEC Laboratories America, Inc.

Inventor： Malay K. Ganai

IPC: G06F11/36

CPC classification number: G06F11/3692 ,  G06F9/524 ,  G06F11/3636 ,  G06F11/366

Abstract: A system for analyzing a multi-threaded program includes a processor and a data storage device coupled to the processor to store a multi-threaded program execution and code for detecting one or more lock cycle conditions from the executed trace to identify one or more livelock or deadlock potentials, and code to confirm the livelock or deadlock potentials in a controlled re-execution.

Abstract translation: 用于分析多线程程序的系统包括处理器和数据存储设备，其耦合到处理器以存储多线程程序执行和代码，用于从所执行的跟踪中检测一个或多个锁周期条件，以识别一个或多个活锁或 死锁电位和代码，以确认控制重新执行中的活动锁定或死锁电位。

公开(公告)号：US20130298130A1

公开(公告)日：2013-11-07

申请号：US13887044

申请日：2013-05-03

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Jacques Pienaar ,  Srimat T. Chakradhar ,  Anand Raghunathan

IPC: G06F9/48

CPC classification number: G06F9/4887 ,  G06F8/451

Abstract: Systems and methods for automatic generation of software pipelines for heterogeneous parallel systems (AHP) include pipelining a program with one or more tasks on a parallel computing platform with one or more processing units and partitioning the program into pipeline stages, wherein each pipeline stage contains one or more tasks. The one or more tasks in the pipeline stages are scheduled onto the one or more processing units, and execution times of the one or more tasks in the pipeline stages are estimated. The above steps are repeated until a specified termination criterion is reached.

Abstract translation: 用于异构并行系统（AHP）的软件管线自动生成的系统和方法包括在具有一个或多个处理单元的并行计算平台上将具有一个或多个任务的程序流水线化，并将程序划分成流水线阶段，其中每个流水线阶段包含一个 或更多的任务。 流水线级中的一个或多个任务被调度到一个或多个处理单元上，并且估计流水线阶段中的一个或多个任务的执行时间。 重复上述步骤直到达到指定的终止标准。