公开(公告)号：US20130060049A1

公开(公告)日：2013-03-07

申请号：US13581832

申请日：2010-09-09

申请人： Chao You ,  Hua Feng ,  Qi Pang ,  Lei Ye ,  Yuying Chen ,  Zuyuan Rong ,  Lei Jin ,  Nan Xu ,  Fei Li ,  Bo Li

发明人： Chao You ,  Hua Feng ,  Qi Pang ,  Lei Ye ,  Yuying Chen ,  Zuyuan Rong ,  Lei Jin ,  Nan Xu ,  Fei Li ,  Bo Li

IPC分类号： C07D207/12

CPC分类号： C07D207/273

摘要： A preparation method of (S)-4-hydroxy-2-oxo-1-pyrrolidine acetamide is provided, which includes the steps of preparing the crude product and crystallizing, wherein acetone and water are used as solvents in the step of crystallizing. The (S)-oxiracetam prepared by the method of the present invention has high purity of more than 99.3% and low impurity of 0-0.5%, based on the percentages of the mass. According to the method of the present invention, with regard to the way of charging materials, adding inorganic base only just a few times is easier to handle and more convenient to the industrial manufacturing and application.

摘要翻译： 提供（S）-4-羟基-2-氧代-1-吡咯烷乙酰胺的制备方法，其包括制备粗产物并结晶的步骤，其中在结晶步骤中使用丙酮和水作为溶剂。 通过本发明方法制备的（S） - 氧乙酰胺基于质量百分比具有大于99.3％的高纯度和0-0.5％的低杂质。 根据本发明的方法，对于充电材料的方式，只加几次无机碱容易处理，更方便工业制造和应用。

公开(公告)号：US20120197638A1

公开(公告)日：2012-08-02

申请号：US13499948

申请日：2010-12-15

申请人： Bo Li ,  Shasha Lou ,  Song Li

发明人： Bo Li ,  Shasha Lou ,  Song Li

IPC分类号： G10L21/02 ,  G10K11/16

CPC分类号： G10L21/0208 ,  G10L2021/02166

摘要： The present invention provides a noise reduction control method using a microphone array and a noise reduction control device using a microphone array wherein the method comprises the steps of: S1: collecting, by the microphone array, acoustic signals; S2: estimating incidence angles of all acoustic signals of the microphone array; S3: conducting a statistics on signal components according to incidence angles; S4: determining a parameter α from a ratio of noise components according to the statistical result and using the parameter α as a control parameter for controlling an adaptive filter. With the present invention, space position information of the sound is obtained directly with the microphone array to control update of the adaptive filter more accurately, so as to eliminate noise, enhance SNR and protect speech quality well at the same time.

摘要翻译： 本发明提供使用麦克风阵列的降噪控制方法和使用麦克风阵列的降噪控制装置，其中该方法包括以下步骤：S1：由麦克风阵列收集声信号; S2：估计麦克风阵列的所有声学信号的入射角; S3：根据入射角进行信号分量统计; S4：根据统计结果根据噪声分量的比率确定参数α，并使用参数α作为控制自适应滤波器的控制参数。 利用本发明，通过麦克风阵列直接获得声音的空间位置信息，以更精确地控制自适应滤波器的更新，从而同时消除噪声，提高SNR并保护语音质量。

公开(公告)号：US20120044723A1

公开(公告)日：2012-02-23

申请号：US12892580

申请日：2010-09-28

申请人： Yingchieh Lin ,  Bo Li ,  Lieyi Fang

发明人： Yingchieh Lin ,  Bo Li ,  Lieyi Fang

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： Power conversion system and method. The system includes a first capacitor including a first capacitor terminal and a second capacitor terminal, a second capacitor including a third capacitor terminal and a fourth capacitor terminal, and a plurality of diodes including a first diode, a second diode, a third diode, and a fourth diode. The first diode is coupled to the second diode at a first node, the second diode is coupled to the fourth diode at a second node, the fourth diode is coupled to the third diode at a third node, and the third diode is coupled to the first diode at a fourth node. Additionally, the system includes a fifth diode including a first anode and a first cathode and a sixth diode including a second anode and a second cathode.

摘要翻译： 电力转换系统及方法。 该系统包括包括第一电容器端子和第二电容器端子的第一电容器，包括第三电容器端子和第四电容器端子的第二电容器，以及包括第一二极管，第二二极管，第三二极管和 第四个二极管。 第一二极管在第一节点处耦合到第二二极管，第二二极管在第二节点处耦合到第四二极管，第四二极管在第三节点处耦合到第三二极管，并且第三二极管耦合到 第一个二极管在第四个节点。 另外，该系统包括包括第一阳极和第一阴极的第五二极管和包括第二阳极和第二阴极的第六二极管。

公开(公告)号：US20110292698A1

公开(公告)日：2011-12-01

申请号：US13205417

申请日：2011-08-08

申请人： Lieyi Fang ,  Shifeng Zhao ,  Bo Li ,  Zhiliang Chen

发明人： Lieyi Fang ,  Shifeng Zhao ,  Bo Li ,  Zhiliang Chen

IPC分类号： H02H7/10

CPC分类号： H02H7/1203 ,  H02H7/12

摘要： System and method for protecting a power converter. A system includes a threshold generator configured to generate a threshold signal, and a first comparator configured to receive the threshold signal and a first signal and to generate a comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive the comparison signal and generate a modulation signal in response to the comparison signal, and a switch configured to receive the modulation signal and adjust the input current for the power converter. The threshold signal is associated with a threshold magnitude as a function of time. The threshold magnitude increases with time at a first slope during a first period, and the threshold magnitude increases with time at a second slope during a second period. The first slope and the second slope are different.

摘要翻译： 保护电源转换器的系统和方法。 一种系统包括被配置为产生阈值信号的阈值发生器，以及配置成接收阈值信号和第一信号并产生比较信号的第一比较器。 第一个信号与功率转换器的输入电流相关联。 另外，该系统包括：脉冲宽度调制发生器，被配置为接收比较信号并响应于比较信号产生调制信号;以及开关，被配置为接收调制信号并调整功率转换器的输入电流。 阈值信号与作为时间的函数的阈值幅度相关联。 阈值幅度在第一周期期间以第一斜率随时间增加，并且阈值幅度在第二周期期间以第二斜率随时间增加。 第一斜坡和第二斜坡不同。

公开(公告)号：US20110205185A1

公开(公告)日：2011-08-25

申请号：US12960900

申请日：2010-12-06

申请人： John David Newton ,  Bo Li ,  Gordon MacDonald ,  Brody Radford ,  Brendon Port ,  Hubert Jetschko ,  Rui Zhang ,  Francois Goffinet

发明人： John David Newton ,  Bo Li ,  Gordon MacDonald ,  Brody Radford ,  Brendon Port ,  Hubert Jetschko ,  Rui Zhang ,  Francois Goffinet

IPC分类号： G06F3/042

CPC分类号： G06F3/011 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/0428

摘要： A computing device, such as a desktop, laptop, tablet computer, a mobile device, or a computing device integrated into another device (e.g., an entertainment device for gaming, a television, an appliance, kiosk, vehicle, tool, etc.) is configured to determine user input commands from the location and/or movement of one or more objects in a space. The object(s) can be imaged using one or more optical sensors and the resulting position data can be interpreted in any number of ways to determine a command. Signal conditioning logic (or a programmable CPU) can be used to facilitate detection by performing at least some image processing in hardware before the image is provided by the imaging device, such as by a hardware-implemented ambient subtraction, infinite impulse response (IIR) or finite impulse response (FIR) filtering, background-tracker-based touch detection, or the like.

摘要翻译： 诸如桌面，膝上型计算机，平板电脑，移动设备或集成到另一设备（例如，用于游戏的娱乐设备，电视，设备，信息亭，车辆，工具等）中的计算设备的计算设备， 被配置为从空间中的一个或多个对象的位置和/或移动来确定用户输入命令。 可以使用一个或多个光学传感器成像对象，并且可以以任何数量的方式解释所得到的位置数据以确定命令。 信号调理逻辑（或可编程CPU）可用于通过在由成像设备提供图像之前执行硬件中的至少一些图像处理来促进检测，例如通过硬件实现的环境减除，无限脉冲响应（IIR） 或有限脉冲响应（FIR）滤波，基于背景跟踪器的触摸检测等。

公开(公告)号：US20100111024A1

公开(公告)日：2010-05-06

申请号：US12610618

申请日：2009-11-02

申请人： Xiaoan Fan ,  Guang Liu ,  Bo Li ,  Yunzhe Hou

发明人： Xiaoan Fan ,  Guang Liu ,  Bo Li ,  Yunzhe Hou

IPC分类号： H04W72/12

CPC分类号： H04L5/0055 ,  H04L1/1614 ,  H04L1/1854 ,  H04L1/1861 ,  H04W72/12

摘要： The present invention relates to radio communications, and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method for feeding back ACK information of SPS data packets includes: receiving an uplink downlink assignment index (UL DAI) from a base station (BS), where the value of the UL DAI indicates the number of downlink data packets (N); mapping ACKs/NAKs of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the Nth ACK/NAK; and feeding back N ACKs/NAKs to the BS. This method can guarantee that N ACKs/NAKs are arranged correctly.

摘要翻译： 本发明涉及无线电通信，并且公开了一种用于反馈和接收半静态调度（SPS）数据分组的确认（ACK）信息的方法和装置。 用于反馈SPS数据分组的ACK信息的方法包括：从基站（BS）接收上行链路下行链路分配索引（UL DAI），其中UL DAI的值指示下行链路数据分组的数量（N）; 将下行链路数据分组的k个SPS数据分组的ACK / NAK映射到从第（N-k + 1）个ACK / NAK到第N个ACK / NAK的位置; 并向BS反馈N个ACK / NAK。 该方法可以保证N个ACK / NAK被正确配置。

公开(公告)号：US07564544B2

公开(公告)日：2009-07-21

申请号：US11626102

申请日：2007-01-23

申请人： Guoheng Zhao ,  Zheng Yan ,  Bo Li ,  Wayne Chen

发明人： Guoheng Zhao ,  Zheng Yan ,  Bo Li ,  Wayne Chen

IPC分类号： G01N21/00

CPC分类号： G01N21/8901 ,  G01N21/9501 ,  G01N2021/9513 ,  G01N2201/0627

摘要： The radiation beam of discrete light source such as LEDs is shaped by a cylindrical lens and a spherical lens to form two perpendicular narrow lines to illuminate a surface. The first line is projected onto a sample surface to improve illumination efficiency, and the second line is projected onto a pupil plane of an imaging lens to improve illumination uniformity. The layout of the LED chip is optimized to match the aspect ratio of the imaging detector. Multiple LEDs at different wavelengths are combined to improve sensitivity. The full surface of the sample is inspected through the relative motion between the sample and the optics.

摘要翻译： 诸如LED的离散光源的辐射束由柱面透镜和球面透镜形成，以形成两条垂直的窄线以照射表面。 将第一行投影到样本表面上以提高照明效率，并且将第二行投影到成像透镜的光瞳平面上以改善照明均匀性。 优化了LED芯片的布局，以匹配成像检测器的宽高比。 组合不同波长的多个LED以提高灵敏度。 通过样品和光学元件之间的相对运动来检查样品的整个表面。

公开(公告)号：US20080174771A1

公开(公告)日：2008-07-24

申请号：US11714513

申请日：2007-03-05

申请人： Zheng Yan ,  Bo Li ,  Wayne Chen ,  Tony Young ,  Ning Li ,  Jianbo Gao

发明人： Zheng Yan ,  Bo Li ,  Wayne Chen ,  Tony Young ,  Ning Li ,  Jianbo Gao

IPC分类号： G01N21/892

CPC分类号： G01N21/8901 ,  G01N21/9501 ,  G01N2021/9513 ,  G01N2201/0627

摘要： Automatic optical inspection (AOI) systems are described comprising optical modules that include an illumination component and a lens array configured to direct illumination of the illumination component at a portion of a substrate. The lens array includes a Fresnel lens. The optical module includes a camera that receives reflected light resulting from an interaction of the illumination and the substrate. The camera includes a time delay integration (TDI) sensor. A telecentric imaging lens directs reflected light from the substrate to the camera. The illumination component comprises a controller coupled to multiple LED light sources, each emitting light at a different wavelength. The controller independently controls each LED light source. The illumination component includes a bright field and/or a dark field light source. The illumination component can include a front side and/or a back side light source. An optical fiber is coupled to the camera and an image processor.

摘要翻译： 自动光学检查（AOI）系统被描述为包括光学模块，其包括照明部件和透镜阵列，该透镜阵列被配置为在衬底的一部分处直接照射照明部件。 透镜阵列包括菲涅尔透镜。 光学模块包括摄像机，其接收由照明和衬底的相互作用产生的反射光。 相机包括时延积分（TDI）传感器。 远心成像透镜将来自基板的反射光引导到相机。 照明部件包括耦合到多个LED光源的控制器，每个LED光源发射不同波长的光。 控制器独立控制每个LED光源。 照明组件包括明场和/或暗场光源。 照明部件可以包括前侧和/或后侧光源。 光纤耦合到相机和图像处理器。

公开(公告)号：US07394634B2

公开(公告)日：2008-07-01

申请号：US11213657

申请日：2005-08-26

申请人： Lieyi Fang ,  Shifeng Zhao ,  Bo Li ,  Zhiliang Chen

发明人： Lieyi Fang ,  Shifeng Zhao ,  Bo Li ,  Zhiliang Chen

IPC分类号： H02H7/00

CPC分类号： H02M3/33507 ,  H02M1/32

摘要： System and method for protecting a power converter. The system includes a first comparator configured to receive a threshold signal and a first signal and to generate a comparison signal. The first signal is a sum of a second signal and a third signal, and the third signal is associated with an input current for a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive the comparison signal and generate a modulation signal in response to the comparison signal, and a switch configured to receive the modulation signal and control the input current for the power converter. An amplitude for the first signal becomes larger if an amplitude for the input voltage becomes larger. The second signal is generated by receiving an input voltage for the power converter, converting the received input voltage to a fourth signal, and converting the fourth signal to the second signal.

摘要翻译： 保护电源转换器的系统和方法。 该系统包括被配置为接收阈值信号和第一信号并产生比较信号的第一比较器。 第一信号是第二信号和第三信号的和，并且第三信号与功率转换器的输入电流相关联。 另外，该系统包括：脉冲宽度调制发生器，被配置为接收比较信号并响应于比较信号产生调制信号;以及开关，被配置为接收调制信号并控制功率转换器的输入电流。 如果输入电压的幅度变大，则第一信号的振幅变大。 通过接收功率转换器的输入电压，将接收到的输入电压转换为第四信号，并将第四信号转换为第二信号，产生第二信号。

公开(公告)号：US20070022909A1

公开(公告)日：2007-02-01

申请号：US10570750

申请日：2004-10-05

申请人： Joseph Kennedy ,  Wei Huang ,  Kim Do ,  Jason Stuck ,  Bo Li

发明人： Joseph Kennedy ,  Wei Huang ,  Kim Do ,  Jason Stuck ,  Bo Li

IPC分类号： C08L83/05

CPC分类号： C09D183/04

摘要： A coating material is described herein that includes at least one inorganic compound, and at least one densifying agent, wherein the densifying agent increases the density of the coating material as compared to the density of the at least one inorganic compound. A method of producing a coating material is described herein that includes: providing at least one inorganic compound, providing at least one densifying agent, combining the at least one inorganic compound with the at least one densifying agent to form the coating material, wherein the densifying agent increases the density of the coating material as compared to the density of the at least one inorganic compound.

摘要翻译： 本文描述了包括至少一种无机化合物和至少一种致密化剂的涂层材料，其中与至少一种无机化合物的密度相比，致密化剂增加涂层材料的密度。 本文描述了制备涂料的方法，其包括：提供至少一种无机化合物，提供至少一种致密化剂，将至少一种无机化合物与至少一种致密化剂结合以形成涂层材料，其中致密化 与至少一种无机化合物的密度相比，增加了涂层材料的密度。