On Packet Aggregation and Header Compression Mechanisms for Improving VoIP Quality in Mesh Networks
    461.
    发明申请
    On Packet Aggregation and Header Compression Mechanisms for Improving VoIP Quality in Mesh Networks 审中-公开
    数据包聚合和报头压缩机制,提高网络网络中的VoIP质量

    公开(公告)号:US20070211682A1

    公开(公告)日:2007-09-13

    申请号:US11683641

    申请日:2007-03-08

    Abstract: An improved aggregation scheme for wireless multi-hop mesh networks is disclosed. An aggregator at each node operates to merge VoIP packets at an ingress/source node with a forced delay, but at an intermediate node aggregated packets are either sent directly to their destination or to the next hop without deaggregation. A novel compression mechanism for compressing and decompressing the aggregated packets is also disclosed.

    Abstract translation: 公开了一种用于无线多跳网状网络的改进的聚合方案。 每个节点处的聚合器操作以在入口/源节点处与强制延迟合并VoIP分组,但是在中间节点处,聚合分组或者直接发送到其目的地或下一跳而不解集。 还公开了一种用于压缩和解压缩聚合分组的新型压缩机制。

    Method and Apparatus for Distributed Data Replication
    462.
    发明申请
    Method and Apparatus for Distributed Data Replication 审中-公开
    分布式数据复制的方法和装置

    公开(公告)号:US20070177739A1

    公开(公告)日:2007-08-02

    申请号:US11275764

    申请日:2006-01-27

    CPC classification number: H04L63/0428 H04L12/1881

    Abstract: Disclosed is a data replication technique for providing erasure encoded replication of large data sets over a geographically distributed replica set. The technique utilizes a multicast tree to store, forward, and erasure encode the data set. The erasure encoding of data may be performed at various locations within the multicast tree, including the source, intermediate nodes, and destination nodes. In one embodiment, the system comprises a source node for storing the original data set, a plurality of intermediate nodes, and a plurality of leaf nodes for storing the unique replica fragments. The nodes are configured as a multicast tree to convert the original data into the unique replica fragments by performing distributed erasure encoding at a plurality of levels of the multicast tree.

    Abstract translation: 公开了一种数据复制技术,用于在地理上分布的副本集上提供大数据集的擦除编码复制。 该技术利用组播树来存储,转发和擦除数据集的编码。 数据的擦除编码可以在多播树内的各个位置执行,包括源,中间节点和目的地节点。 在一个实施例中,系统包括用于存储原始数据集的源节点,多个中间节点和用于存储唯一副本片段的多个叶节点。 这些节点被配置为多播树,以通过在多播树的多个级别执行分布式擦除编码来将原始数据转换成唯一的副本片段。

    Learning machine that considers global structure of data
    463.
    发明申请
    Learning machine that considers global structure of data 审中-公开
    考虑全局数据结构的学习机

    公开(公告)号:US20070168305A1

    公开(公告)日:2007-07-19

    申请号:US11252487

    申请日:2005-10-18

    CPC classification number: G06K9/6269 G06N20/00

    Abstract: A new machine learning technique is herein disclosed which generalizes the support vector machine framework. A separating hyperplane in a separating space is optimized in accordance with generalized constraints which are dependent upon the clustering of the input vectors in the dataset.

    Abstract translation: 本文公开了一种新的机器学习技术,其概括了支持向量机框架。 分离空间中的分离超平面根据取决于数据集中的输入向量的聚类的一般约束进行优化。

    Synergistic face detection and pose estimation with energy-based models
    464.
    发明授权
    Synergistic face detection and pose estimation with energy-based models 有权
    基于能量模型的协同面部检测和姿态估计

    公开(公告)号:US07236615B2

    公开(公告)日:2007-06-26

    申请号:US11095984

    申请日:2005-03-31

    CPC classification number: G06K9/4628 G06K9/00214 G06K9/00248

    Abstract: A method for human face detection that detects faces independently of their particular poses and simultaneously estimates those poses. Our method exhibits an immunity to variations in skin color, eyeglasses, facial hair, lighting, scale and facial expressions, and others. In operation, we train a convolutional neural network to map face images to points on a face manifold, and non-face images to points far away from that manifold, wherein that manifold is parameterized by facial pose. Conceptually, we view a pose parameter as a latent variable, which may be inferred through an energy-minimization process. To train systems based upon our inventive method, we derive a new type of discriminative loss function that is tailored to such detection tasks. Our method enables a multi-view detector that can detect faces in a variety of poses, for example, looking left or right (yaw axis), up or down (pitch axis), or tilting left or right (roll axis). Systems employing our method are highly-reliable, run at near real time (5 frames per second on conventional hardware), and is robust against variations in yaw (±90°), roll(±45°), and pitch(±60°).

    Abstract translation: 一种用于人脸检测的方法,其独立于其特定姿态来检测脸部,并同时估计这些姿势。 我们的方法表现出对皮肤颜色,眼镜,面部毛发,照明,鳞屑和面部表情等变化的抵抗力。 在操作中,我们训练卷积神经网络将脸部图像映射到脸部歧管上的点,并将非脸部图像指向远离该歧管的点,其中该歧管通过面部姿态参数化。 在概念上,我们将姿势参数视为潜在变量,这可以通过能量最小化过程来推断。 为了根据我们的创造性方法来训练系统,我们推导出一种适合这种检测任务的新型的辨别性损失函数。 我们的方法使得能够检测各种姿势的多视角检测器,例如向左或向右(偏航轴),向上或向下(俯仰轴)或左倾或右倾(滚轴)倾斜。 采用我们的方法的系统是高度可靠的,几乎实时运行(在常规硬件上为5帧/秒),并且对于偏航(±90°),滚动(±45°)和俯仰(±60°) )。

    Test output compaction using response shaper
    465.
    发明授权
    Test output compaction using response shaper 失效
    使用响应整形器测试输出压缩

    公开(公告)号:US07222277B2

    公开(公告)日:2007-05-22

    申请号:US10985599

    申请日:2004-11-10

    CPC classification number: G01R31/318547

    Abstract: A test output compaction architecture and method that takes advantage of a response shaper in order to minimize masking of faults during compaction. A response shaper is inserted between a plurality of scan chains and an output compactor. The response shaper receives output responses from scan chains and reshapes the output responses in a manner that minimizes masking of faults by the output compactor.

    Abstract translation: 测试输出压缩架构和方法,利用响应整形器,以最大限度地减少压实过程中故障的屏蔽。 响应整形器插入在多个扫描链和输出压实机之间。 响应整形器接收来自扫描链的输出响应,并且以使输出压实机的故障掩蔽最小化的方式重新形成输出响应。

    System and Method for Low-Density Parity Check (LDPC) Code Design
    466.
    发明申请
    System and Method for Low-Density Parity Check (LDPC) Code Design 失效
    用于低密度奇偶校验(LDPC)码设计的系统和方法

    公开(公告)号:US20070113146A1

    公开(公告)日:2007-05-17

    申请号:US11533978

    申请日:2006-09-21

    CPC classification number: H03M13/1105 H03M13/033 H03M13/6393

    Abstract: Disclosed is a density evolution algorithm based on a refined definition of node and edge densities for different parts of the code. In particular, density functions ƒV(1)(i) and ƒV(2)(i) of the output edges of the variable nodes with degree i within different codeword regions w1 and we, respectively, are defined and then calculated. Further, density functions ƒC(1)(j) and ƒC(2)(j) of the output edges for check nodes with degree j within codeword regions w1 and we, respectively, are defined and then calculated. Mixture density functions of output check edges connecting variable nodes in the first codeword region and the second codeword region are then calculated to determine an LDPC code design.

    Abstract translation: 公开了基于代码不同部分的节点和边缘密度的精确定义的密度演化算法。 特别地,(i)和(ii)(i)的浓度函数f(i) 分别在不同码字区域w 1和w e e中的等级i的可变节点的输出边缘被分别定义然后被计算。 此外,密度函数f(1)(j)和(C)的密度函数 分别定义并且然后计算在码字区域w 1和w e e中的具有度j的校验节点的输出边缘。 然后计算连接第一码字区域和第二码字区域中的可变节点的输出校验边缘的混合密度函数,以确定LDPC码设计。

    Peak-to-Average Power Ratio Reduction with Threshold Limited Selection for Coded OFDM Systems
    467.
    发明申请
    Peak-to-Average Power Ratio Reduction with Threshold Limited Selection for Coded OFDM Systems 有权
    峰值与平均功率比减少与编码OFDM系统的阈值限制选择

    公开(公告)号:US20070098094A1

    公开(公告)日:2007-05-03

    申请号:US11536263

    申请日:2006-09-28

    Abstract: Disclosed is a coded orthogonal frequency-division multiplexing (OFDM) system and method for reducing a peak-to-average power ratio (PAPR). The system and method include a modulator configured to modulate (e.g., using quadrature amplitude modulation (QAM)) coded bits into symbols. The system and method also include an inverse discrete fourier transform (IDFT) module to perform an IDFT on the symbols to produce an OFDM signal. The system and method measure the PAPR of the OFDM signal and transmit the signal to a receiver if the PAPR of the signal is less than a threshold PAPR.

    Abstract translation: 公开了用于降低峰均功率比(PAPR)的编码正交频分复用(OFDM)系统和方法。 该系统和方法包括配置成将(例如,使用正交幅度调制(QAM))编码比特调制成符号的调制器。 该系统和方法还包括对码元执行IDFT以产生OFDM信号的反离散傅里叶变换(IDFT)模块。 如果信号的PAPR小于阈值PAPR,则该系统和方法测量OFDM信号的PAPR并将该信号发送到接收机。

    Test Output Compaction for Responses with Unknown Values
    468.
    发明申请
    Test Output Compaction for Responses with Unknown Values 失效
    对未知值的响应测试输出压缩

    公开(公告)号:US20070088999A1

    公开(公告)日:2007-04-19

    申请号:US11277782

    申请日:2006-03-29

    CPC classification number: G01R31/318547

    Abstract: A spatial compactor design and technique for the compaction of test response data is herein disclosed which advantageously provides a scan-out response with multiple opportunities to be observed on different output channels in one to several scan-shift cycles.

    Abstract translation: 本文公开了用于压缩测试响应数据的空间压实机设计和技术,其有利地提供扫描输出响应,其具有在一到多个扫描移位周期中在不同输出通道上观察到的多个机会。

    Restricted scan reordering technique to enhance delay fault coverage
    469.
    发明授权
    Restricted scan reordering technique to enhance delay fault coverage 失效
    限制扫描重排序技术,增强延时故障覆盖

    公开(公告)号:US07188323B2

    公开(公告)日:2007-03-06

    申请号:US10892022

    申请日:2004-07-15

    CPC classification number: G01R31/318544

    Abstract: Disclosed is a method and apparatus for improved delay fault testing by optimizing the order of scan cells in a scan chain. The order of the scan cells is determined by using a cost value for an order of scan cells, the cost value being computed from costs assigned to orderings of individual pairs of scan cells. These costs can be based on the number of faults that are untestable when the pair of scan cells are placed consecutively in the scan chain. The disclosed techniques allow for enhanced delay fault coverage by rearranging scan flip-flops without increasing routing overhead.

    Abstract translation: 公开了一种通过优化扫描链中扫描单元的顺序来改进延迟故障测试的方法和装置。 通过使用扫描单元的顺序的成本值来确定扫描单元的顺序,成本值是根据分配给单个扫描单元对的顺序的成本计算的。 这些成本可以基于在扫描链中连续放置一对扫描单元时不可测量的故障的数量。 所公开的技术允许通过重新排列扫描触发器而不增加路由开销来增强延迟故障覆盖。

Patent Agency Ranking