公开(公告)号：US20070290900A1

公开(公告)日：2007-12-20

申请号：US11558313

申请日：2006-11-09

申请人： Song Wang ,  Eddie L.T. Choy ,  Samir Kumar Gupta

发明人： Song Wang ,  Eddie L.T. Choy ,  Samir Kumar Gupta

IPC分类号： H03M7/00

CPC分类号： H03H17/0685

摘要： In general, this disclosure describes techniques for changing a sampling frequency of a digital signal. In particular, the techniques provide a more accurate way to determining a relative timing between a desired output sample and a corresponding input sample using a non-approximated integer representation of the relative timing. The relative timing between the desired output sample and corresponding input sample may be represented using a first component that identifies a latest input sample of the digital signal used to generate intermediate samples, a second component that identifies an intermediate sample, and a third component that identifies a timing difference between the desired output sample and the intermediate sample. Each of the components may be recursively updated using non-approximated integer values.

摘要翻译： 通常，本公开描述了用于改变数字信号的采样频率的技术。 特别地，这些技术提供了使用相对定时的非近似整数表示来确定期望输出采样和相应输入采样之间的相对定时的更精确的方法。 可以使用标识用于生成中间样本的数字信号的最新输入样本的第一组件，标识中间样本的第二组件和标识中间样本的第三组件来表示期望输出样本与相应输入样本之间的相对时序 所需输出样本和中间样本之间的时间差。 可以使用非近似的整数值递归地更新每个组件。

公开(公告)号：US20070192390A1

公开(公告)日：2007-08-16

申请号：US11452836

申请日：2006-06-13

申请人： Song Wang ,  Eddie L.T. Choy ,  Prajakt V. Kulkarni ,  Samir Kumar Gupta

发明人： Song Wang ,  Eddie L.T. Choy ,  Prajakt V. Kulkarni ,  Samir Kumar Gupta

IPC分类号： G06F1/02

CPC分类号： H03H17/0685 ,  H03H17/0294

摘要： Techniques are described for sampling rate conversion in the digital domain by up-sampling and down-sampling a digital signal according to a selected intermediate sampling frequency. A prototype anti-aliasing filter that has a bandwidth with multiple factors is stored in memory. The techniques include selecting an intermediate sampling frequency to be an integer multiple of a desired output sampling frequency of a digital signal based on the factors of the prototype filter, and selecting a down-sampling factor to be the same integer associated with the selected intermediate sampling frequency. A filter generator generates an anti-aliasing filter for the selected down-sampling factor based on the prototype filter. A sampling rate converter up-samples the digital signal at an input sampling frequency to the selected intermediate sampling frequency, filters the digital signal with the derived anti-aliasing filter, and down-samples the digital signal by the selected down-sampling factor to the desired output sampling frequency.

摘要翻译： 描述了通过根据所选择的中间采样频率对数字信号进行上采样和下采样来对数字域中的采样率转换进行描述的技术。 具有多个因素的带宽的原型抗混叠滤波器存储在存储器中。 这些技术包括基于原型滤波器的因素来选择中间采样频率为数字信号的期望输出采样频率的整数倍，并且将下采样因子选择为与所选择的中间采样相关联的整数 频率。 滤波器发生器基于原型滤波器生成用于所选择的下采样因子的抗混叠滤波器。 采样率转换器将数字信号以输入采样频率向采样频率进行上采样，以采样导出的抗混叠滤波器对数字信号进行滤波，并通过选择的下采样因子将数字信号下采样到 所需输出采样频率。

公开(公告)号：US09298773B2

公开(公告)日：2016-03-29

申请号：US13431773

申请日：2012-03-27

申请人： Chetan Kumar Gupta ,  Song Wang ,  Abhay Mehta ,  Mo Liu ,  Elke Angelika Rundensteiner ,  Medhabi Ray

发明人： Chetan Kumar Gupta ,  Song Wang ,  Abhay Mehta ,  Mo Liu ,  Elke Angelika Rundensteiner ,  Medhabi Ray

IPC分类号： G06F17/30

CPC分类号： G06F17/30477 ,  G06F17/30864

摘要： A method of evaluating nested complex sequence pattern queries includes obtaining events from an event stream and evaluating the events within a first window using an outer query to produce outer partial results. The method also includes determining a more stringent window constraint, the more stringent window constraint comprising a subset of the window constraint corresponding to events that produces the outer partial results and passing the more stringent window constraint to an inner query nested within the outer query. A complex event processing system is also provided.

摘要翻译： 评估嵌套复杂序列模式查询的方法包括从事件流获取事件并且使用外部查询来评估第一窗口内的事件以产生外部部分结果。 该方法还包括确定更严格的窗口约束，更严格的窗口约束包括对应于产生外部部分结果的事件的窗口约束的子集，并将更严格的窗口约束传递给嵌套在外部查询内的内部查询。 还提供了一个复杂的事件处理系统。

公开(公告)号：US09178885B1

公开(公告)日：2015-11-03

申请号：US13113939

申请日：2011-05-23

申请人： Michael Jacobsen ,  Song Wang ,  Wilson Xu

发明人： Michael Jacobsen ,  Song Wang ,  Wilson Xu

IPC分类号： H04L29/06 ,  G06F21/30

摘要： Enforcing a policy is described. A mapping between an IP address of a device and a user identity is identified, at least in part by correlating event information. A policy is applied to the device based at least in part on the user identity. One example of an event is an access to a mail server, such as an access to a Microsoft Exchange server.

公开(公告)号：US09113240B2

公开(公告)日：2015-08-18

申请号：US12405057

申请日：2009-03-16

申请人： Dinesh Ramakrishnan ,  Song Wang

发明人： Dinesh Ramakrishnan ,  Song Wang

IPC分类号： H04B15/00 ,  H04R3/00 ,  G10L21/028 ,  G10L21/0216 ,  G10L21/0308 ,  H04R29/00

CPC分类号： H04R3/005 ,  G10L21/028 ,  G10L21/0308 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R29/006 ,  H04R2420/07 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/11

摘要： Signal processing solutions take advantage of microphones located on different devices and improve the quality of transmitted voice signals in a communication system. With usage of various devices such as Bluetooth headsets, wired headsets and the like in conjunction with mobile handsets, multiple microphones located on different devices are exploited for improving performance and/or voice quality in a communication system. Audio signals are recorded by microphones on different devices and processed to produce various benefits, such as improved voice quality, background noise reduction, voice activity detection and the like.

摘要翻译： 信号处理解决方案利用位于不同设备上的麦克风，并提高通信系统中传输的语音信号的质量。 随着诸如蓝牙耳机，有线耳机等各种设备的使用，与移动手机结合使用，位于不同设备上的多个麦克风被用来改善通信系统中的性能和/或语音质量。 音频信号由不同设备上的麦克风记录，并被处理以产生各种益处，例如改进的语音质量，背景噪声降低，语音活动检测等。

公开(公告)号：US09052435B2

公开(公告)日：2015-06-09

申请号：US13997950

申请日：2012-03-13

申请人： Shuqiang Zhang ,  Yongtao Liu ,  Song Wang ,  Zhenbao He ,  Jin Xu

发明人： Shuqiang Zhang ,  Yongtao Liu ,  Song Wang ,  Zhenbao He ,  Jin Xu

IPC分类号： G02B6/036 ,  G02B6/028 ,  G02B6/02

CPC分类号： G02B6/03627 ,  G02B6/02 ,  G02B6/0288 ,  G02B6/0365

摘要： A bending-resistant large core diameter high numerical aperture multimode fiber includes a core and a cladding surrounding the core. The core has a radius R1 in a range of 28 to 50 microns, a refractive index profile of a parabola shape with α being in a range of 1.9 to 2.2, and a maximum relative refractive index difference Δ1% max being in a range of 1.9% to 2.5%. The cladding includes an inner cladding and/or a trench cladding, and an outer cladding disposed from the inner to the outer in sequence. The radius R2 of the inner cladding is in a range of 28 to 55 microns, and the relative refractive index difference Δ2% is −0.1% to 0.1%. The radius R3 of the trench cladding is in a range of 28 to 60 microns, and the relative refractive index difference Δ3% is in a range of −0.15% to −0.8%.

摘要翻译： 耐弯曲的大芯径高数值孔径多模光纤包括芯和围绕芯的包层。 芯的半径R1在28至50微米的范围内，抛物线形状的折射率分布具有α在1.9至2.2的范围内，最大相对折射率差Dgr; 1％max在一个范围内 为1.9％至2.5％。 包层包括内包层和/或沟槽包层，以及从内层到外层依次设置的外包层。 内包层的半径R2在28至55微米的范围内，相对折射率差Dgr; 2％为-0.1％至0.1％。 沟槽包层的半径R3在28至60微米的范围内，相对折射率差Dgr 3％在-0.15％至-0.8％的范围内。

公开(公告)号：US08973088B1

公开(公告)日：2015-03-03

申请号：US13115022

申请日：2011-05-24

申请人： Siu-Wang Leung ,  Song Wang ,  Yueh-Zen Chen

发明人： Siu-Wang Leung ,  Song Wang ,  Yueh-Zen Chen

IPC分类号： G06F11/00 ,  H04L29/06 ,  G06F7/04

CPC分类号： H04L63/20 ,  H04L63/00 ,  H04L63/02 ,  H04L63/0272 ,  H04L63/102 ,  H04L63/1408 ,  H04L63/1433

摘要： Embodiments of the present application relate to a method for policy enforcement, a system for policy enforcement, and a computer program product for policy enforcement. A method for policy enforcement is provided. The method includes receiving a host information profile report from a client device, and enforcing a security policy for network access based on the host information profile report. The host information profile report includes device profile information associated with the client device.

摘要翻译： 本申请的实施例涉及用于策略实施的方法，用于策略实施的系统以及用于策略执行的计算机程序产品。 提供了一种执行策略的方法。 该方法包括从客户端设备接收主机信息配置文件报告，并且基于主机信息配置文件报告来执行用于网络接入的安全策略。 主机信息简档报告包括与客户端设备相关联的设备配置文件信息。

公开(公告)号：US08898209B2

公开(公告)日：2014-11-25

申请号：US12501446

申请日：2009-07-12

申请人： Chetan Kumar Gupta ,  Choudur Lakshminarayan ,  Song Wang ,  Abhay Mehta

发明人： Chetan Kumar Gupta ,  Choudur Lakshminarayan ,  Song Wang ,  Abhay Mehta

IPC分类号： G06F7/00 ,  G06F17/14 ,  H01H67/00 ,  G08B1/08 ,  H04N7/12 ,  G06K9/36 ,  G06K9/46

CPC分类号： G06F17/148

摘要： Sensor data is received from one or more sensors. The sensor data is organized within a hierarchy. The sensor data is organized within a hierarchy that is non-dyadic. A processor of a computing device generates a discrete wavelet transform, based on the sensor data and based on the hierarchy of the sensor data, to compress the sensor data. The sensor data, as has been compressed via generation of the discrete wavelet transform, is processed.

摘要翻译： 从一个或多个传感器接收传感器数据。 传感器数据组织在层次结构中。 传感器数据被组织在非二进制的层次结构中。 计算设备的处理器基于传感器数据并基于传感器数据的层级来生成离散小波变换，以压缩传感器数据。 已经通过生成离散小波变换压缩的传感器数据被处理。

公开(公告)号：US08725781B2

公开(公告)日：2014-05-13

申请号：US13017013

申请日：2011-01-30

申请人： Umeshwar Dayal ,  Maria G Castellanos ,  Chetan Kumar Gupta ,  Song Wang ,  Meichun Hsu

发明人： Umeshwar Dayal ,  Maria G Castellanos ,  Chetan Kumar Gupta ,  Song Wang ,  Meichun Hsu

IPC分类号： G06F17/30

CPC分类号： G06Q30/02

摘要： A sentiment cube system is disclosed. In one example, the system discloses a sentiment storage, including a sentiment cube data structure having a set of cells arranged by a set of dimensions. The system includes a computer programmed with executable instructions which operate a set of modules, wherein the modules comprise: a sentiment storage module which receives sentiment values associated with a set of entity features, and then populates a hierarchy of the cells in the sentiment cube with the sentiment values. A sentiment analysis module effecting a set of operations on the sentiment cube.

摘要翻译： 披露情感立方体系。 在一个示例中，系统公开了情绪存储，其包括具有由一组维度排列的一组单元的情感立方体数据结构。 该系统包括用可操作的指令编程的计算机，该可执行指令操作一组模块，其中模块包括：情绪存储模块，其接收与一组实体特征相关联的情绪值，然后在情绪立方体中填充情绪立方体中的细胞层级， 情绪价值观。 情绪分析模块对情绪立方体执行一组操作。

公开(公告)号：US08650238B2

公开(公告)日：2014-02-11

申请号：US11946253

申请日：2007-11-28

申请人： Dinesh Ramakrishnan ,  Song Wang ,  Eddie L. T. Choy ,  Samir Kumar Gupta

发明人： Dinesh Ramakrishnan ,  Song Wang ,  Eddie L. T. Choy ,  Samir Kumar Gupta

IPC分类号： G06F7/38

CPC分类号： H04J3/0632 ,  G10L19/005

摘要： In a digital system with more than one clock source, lack of synchronization between the clock sources may cause overflow or underflow in sample buffers, also called sample slipping. Sample slipping may lead to undesirable artifacts in the processed signal due to discontinuities introduced by the addition or removal of extra samples. To smooth out discontinuities caused by sample slipping, samples are filtered to when a buffer overflow condition occurs, and the samples are interpolated to produce additional samples when a buffer underflow condition occurs. The interpolated samples may also be filtered. The filtering and interpolation operations can be readily implemented without adding significant burden to the computational complexity of a real-time digital system.

摘要翻译： 在具有多个时钟源的数字系统中，时钟源之间的同步缺乏可能导致采样缓冲器中的溢出或下溢，也称为样品打滑。 由于添加或除去额外的样品引起的不连续性，样品打滑可能导致处理过的信号中的不期望的伪影。 为了平滑由样品滑动引起的不连续性，将样品过滤到发生缓冲液溢出状态时，当发生缓冲液下溢条件时，样品被内插以产生附加样品。 内插样本也可以被过滤。 可以容易地实现滤波和插值操作，而不会对实时数字系统的计算复杂度造成重大负担。