公开(公告)号：US20130086272A1

公开(公告)日：2013-04-04

申请号：US13485924

申请日：2012-06-01

Applicant: Haifeng Chen ,  Guofei Jiang

Inventor： Haifeng Chen ,  Guofei Jiang

IPC: G06F15/173

CPC classification number: G06F9/4856

Abstract: Systems and methods are disclosed to schedule virtual machine (VM) migrations by analyzing VM migration behavior; building a simulation tool to predict time for multiple migrations under different links conditions and VM characteristics; determining a predetermined bandwidth sharing policy for each network link; applying a bin-packing technique to organize bandwidth resources from all network links, and allocating the links to different migration tasks.

Abstract translation: 公开了系统和方法，通过分析VM迁移行为来调度虚拟机（VM）迁移; 构建一个模拟工具，以预测不同链接条件和VM特性下的多个迁移的时间; 确定每个网络链路的预定带宽共享策略; 应用二进制包装技术来组织来自所有网络链路的带宽资源，并将链路分配给不同的迁移任务。

公开(公告)号：US20130085998A1

公开(公告)日：2013-04-04

申请号：US13645103

申请日：2012-10-04

Applicant: NEC Laboratories America, Inc.

Inventor： Sean Barker ,  Yun Chi ,  Hyun Jin Moon ,  Vahit Hakan Hacigumus

IPC: G06F17/30 ,  G06F12/16

CPC classification number: G06F9/455 ,  G06F9/5088 ,  G06F17/303

Abstract: Methods and systems for database migration from a multitenant database include taking a snapshot of an original database to be migrated with a hot backup process, such that the database is still capable of answering queries during the hot backup process; maintaining a query log of all queries to the tenant database after the hot backup process begins; initializing a new database at a target server using the snapshot; replaying the query log synchronize the new database with the original database; and answering new queries with the new database and not the original database.

Abstract translation: 从多租户数据库进行数据库迁移的方法和系统包括：使用热备份流程来迁移原始数据库的快照，以使得数据库仍然能够在热备份过程中回答查询; 在热备份过程开始之后，将所有查询的查询日志保存到租户数据库; 使用快照在目标服务器上初始化新数据库; 重播查询日志将新数据库与原始数据库同步; 并使用新的数据库而不是原始数据库来回答新的查询。

公开(公告)号：US08385462B2

公开(公告)日：2013-02-26

申请号：US13467629

申请日：2012-05-09

Applicant: Mohammad A. Khojastepour ,  Sampath Rangarajan

Inventor： Mohammad A. Khojastepour ,  Sampath Rangarajan

IPC: H04L27/00

CPC classification number: H04L27/28 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/30

Abstract: Methods and systems for indexing subband selections are disclosed. The selected subbands can be represented as a binary sequence and the index can be determined by employing a choose function, where a choose function value for a particular selected bit position is defined by a selection occurrence count of the selected bit position that is chosen from a bit position count of the selected bit position. In particular, the index can be the summation of choose function values for each selected bit position.

Abstract translation: 公开了用于索引子带选择的方法和系统。 所选择的子带可以表示为二进制序列，并且可以通过采用选择函数来确定索引，其中特定所选位位置的选择函数值由所选择的位位置的选择发生次数定义，所述选择发生次数从 所选位位置的位位置计数。 特别地，索引可以是每个所选位位置的选择函数值的总和。

公开(公告)号：US08385439B2

公开(公告)日：2013-02-26

申请号：US12392294

申请日：2009-02-25

Applicant: Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

Inventor： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC: H04K1/10 ,  H04K3/00 ,  H04B10/06

CPC classification number: H04L27/3405 ,  H04B10/2569 ,  H04B10/60 ,  H04B10/697 ,  H04B2210/252 ,  H04L1/005 ,  H04L1/0631 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/067 ,  H04L27/2649 ,  H04L2025/03426 ,  H04L2025/03611

Abstract: Receivers and methods are provided for polarization mode dispersion compensation in multi-level coded-modulation schemes using a BLAST algorithm and iterative polarization cancellation. A receiver includes a vertical Bell Laboratories Layered Space-Time Architecture (V-BLAST) orthogonal frequency division multiplexing (OFDM) detector configured to receive input sequences and partially cancel polarization interference with respect to the input sequences to output symbol estimates for the input sequences. The receiver further includes one or more low-density parity-check (LDPC) decoders coupled to the V-BLAST OFDM detector configured to receive channel bit reliabilities and output code words. The channel bit reliabilities are indirectly calculated from the symbol estimates. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the V-BLAST OFDM detector to compensate for the polarization interference.

Abstract translation: 为使用BLAST算法和迭代偏振消除的多电平编码调制方案中的偏振模色散补偿提供接收机和方法。 接收机包括垂直的贝尔实验室分层时空架构（V-BLAST）正交频分复用（OFDM）检测器，其被配置为接收输入序列并部分地消除相对于输入序列的偏振干扰，以输出输入序列的符号估计。 接收机还包括耦合到V-BLAST OFDM检测器的一个或多个低密度奇偶校验（LDPC）解码器，被配置为接收信道位可靠性和输出码字。 信道位可靠性是从符号估计中间接计算的。 一个或多个LDPC解码器向V-BLAST OFDM检测器反复地提供外在的软信息反馈以补偿极化干扰。

公开(公告)号：US08379788B2

公开(公告)日：2013-02-19

申请号：US12818158

申请日：2010-06-18

Applicant: Junquiang Hu ,  Tyrone Kwok ,  Ting Wang

Inventor： Junquiang Hu ,  Tyrone Kwok ,  Ting Wang

IPC: H03D3/24

CPC classification number: H03L7/07 ,  H04L2027/0067

Abstract: A parallel phase locked loop (PLL) system includes a first chain of a plurality of pre-locking PLLs that operates from a free-run state to a locked state; and a second chain of a plurality of PLLs to work from the locked-state to recover signal output.

Abstract translation: 并行锁相环（PLL）系统包括从自由运行状态到锁定状态操作的多个预锁定PLL的第一链; 以及多个PLL的第二链，其从锁定状态工作以恢复信号输出。

公开(公告)号：US08379618B2

公开(公告)日：2013-02-19

申请号：US13267279

申请日：2011-10-06

Applicant: Mohammad Ali Khojastepour

Inventor： Mohammad Ali Khojastepour

IPC: H04J1/00

CPC classification number: H04B7/0632 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639

Abstract: Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g., recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied.

Abstract translation: 公开了用于在一组并行通道上设计预编码器的连续多级波束形成策略（例如，连续预编码策略）的方法和装置。 连续波束成形被应用于窄带信道模型，并且还被应用于单个波束成形向量（例如，递归波束成形）的更精细量化。 第一实施例提供了高复杂度的最佳方法。 替代实施例提供连续的波束成形用于具有中等复杂度的近最优预编码选择。 还提供了一种用于预编码器选择的低复杂度方法，其中确定用于该组并行信道的信道代表性矩阵，并且应用所计算的信道代表上的连续波束成形。

公开(公告)号：US20130039335A1

公开(公告)日：2013-02-14

申请号：US13650433

申请日：2012-10-12

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Karthikeyan Sundaresan ,  Sampath Rangarajan

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04L5/0023 ,  H04W72/042 ,  H04W72/0486 ,  H04W84/045

Abstract: Methods and systems for reusing macro cell resources in femto cell base stations or relay stations in a non-collaborative manner are disclosed. In addition, orthogonal resource allocation between a macro cell base station and femto cell base stations/relay stations may be dynamically adjusted by considering user-population variance. Moreover, an additional level of spatial reuse by femto cell base stations or relay stations can be provided by employing macro cell user location information.

Abstract translation: 公开了以非协作方式在毫微微小区基站或中继站中重用宏小区资源的方法和系统。 此外，可以通过考虑用户群体方差来动态地调整宏小区基站和毫微微小区基站/中继站之间的正交资源分配。 此外，可以通过使用宏小区用户位置信息来提供毫微微小区基站或中继站的附加级别的空间重用。

公开(公告)号：US08375392B2

公开(公告)日：2013-02-12

申请号：US12860694

申请日：2010-08-20

Applicant: Michela Becchi ,  Surendra Byna ,  Srihari Cadambi ,  Srimat Chakradhar

Inventor： Michela Becchi ,  Surendra Byna ,  Srihari Cadambi ,  Srimat Chakradhar

IPC: G06F9/46

CPC classification number: G06F9/5044

Abstract: Systems and method for data-aware scheduling of applications on a heterogeneous platform having at least one central processing unit (CPU) and at least one accelerator. Such systems and methods include a function call handling module configured to intercept, analyze, and schedule library calls on a processing element. The function call handling module further includes a function call interception module configured to intercept function calls to predefined libraries, a function call analysis module configured to analyze argument size and location, and a function call redirection module configured to schedule library calls and data transfers. The systems and methods also use a memory unification module, configured to keep data coherent between memories associated with the at least one CPU and the at least one accelerator based on the output of the function call redirection module.

Abstract translation: 用于具有至少一个中央处理单元（CPU）和至少一个加速器的异构平台上的应用的数据感知调度的系统和方法。 这样的系统和方法包括功能调用处理模块，其被配置为在处理元件上截取，分析和调度库调用。 所述功能调用处理模块还包括功能调用拦截模块，被配置为拦截对预定义库的函数调用，被配置为分析参数大小和位置的函数调用分析模块以及被配置为调度库调用和数据传输的函数调用重定向模块。 系统和方法还使用存储器统一模块，其被配置为基于功能呼叫重定向模块的输出，在与至少一个CPU和至少一个加速器相关联的存储器之间保持数据一致。

公开(公告)号：US08374840B2

公开(公告)日：2013-02-12

申请号：US12578855

申请日：2009-10-14

Applicant: Sriram Sankaranarayanan ,  Franjo Ivancic ,  Aarti Gupta ,  Truong X. Nghiem

Inventor： Sriram Sankaranarayanan ,  Franjo Ivancic ,  Aarti Gupta ,  Truong X. Nghiem

IPC: G06G7/62

CPC classification number: G01R31/318357

Abstract: A system and method for generating test vectors includes generating traces of a system model or program stored in memory using a simulation engine. Simulated inputs are globally optimized using a fitness objective computed using a computer processing device. The simulation inputs are adjusted in accordance with feedback from the traces and fitness objective values by computing a distance between the fitness objective value and a reachability objective. Test input vectors are output based upon optimized fitness objective values associated with the simulated inputs to test the system model or program stored in memory.

Abstract translation: 用于生成测试向量的系统和方法包括使用模拟引擎生成存储在存储器中的系统模型或程序的轨迹。 使用计算机处理设备计算的健身目标，全局优化模拟输入。 通过计算健身目标值与可达性目标之间的距离，根据跟踪和健身目标值的反馈来调整模拟输入。 基于与模拟输入相关联的优化的适应度目标值输出测试输入向量，以测试存储在存储器中的系统模型或程序。

公开(公告)号：US20130034304A1

公开(公告)日：2013-02-07

申请号：US13564437

申请日：2012-08-01

Applicant: Eric Cosatto ,  Christopher Malon ,  Hans P. Graf

Inventor： Eric Cosatto ,  Christopher Malon ,  Hans P. Graf

IPC: G06K9/46

CPC classification number: G06K9/00979

Abstract: Methods and systems for digital pathology with low-latency analytics include determining potential regions of interest within an image in accordance with one or more high-priority analyses, dividing the potential regions of interest into a plurality of sub-sections optimized for parallel computation, analyzing the sub-sections using one or more execution nodes, each including one or more processors, using a copy of the image stored in a shared memory according to the one or more high-priority analyses, and storing an intermediate analysis result based on analysis results from the one or more execution nodes in a shared memory.

Abstract translation: 具有低延迟分析的数字病理学方法和系统包括根据一个或多个高优先级分析来确定图像内的感兴趣区域，将感兴趣的潜在区域划分为针对并行计算优化的多个子部分，分析 使用根据所述一个或多个高优先级分析的存储在共享存储器中的图像的副本的每个包括一个或多个处理器的一个或多个执行节点的子部分，以及基于分析结果存储中间分析结果 来自共享存储器中的一个或多个执行节点。