公开(公告)号：US07671972B2

公开(公告)日：2010-03-02

申请号：US11730055

申请日：2007-03-29

申请人： Kwok Sing Cheng ,  Ho Shan Ng ,  Lai Man Chau ,  Yeung Ming Chow ,  Tao Tao

发明人： Kwok Sing Cheng ,  Ho Shan Ng ,  Lai Man Chau ,  Yeung Ming Chow ,  Tao Tao

IPC分类号： G01P3/36

CPC分类号： G01S17/026 ,  G01S17/50

摘要： A method of sensing movement or proximity of objects by optical reflection is provided. The method includes the steps of transmitting a train of optical pulses towards a destination, sensing optical pulses reflected from the destination, and sensing and evaluating movement or proximity characteristics of objects at the destination with reference to variation in pulse width between transmitted and reflected optical pulses.

摘要翻译： 提供了通过光学反射来检测物体的移动或接近的方法。 该方法包括以下步骤：向目的地发送一列光脉冲，感测从目的地反射的光脉冲，并且参考目的地的物体的移动或接近特性，参考发射和反射的光脉冲之间的脉冲宽度的变化 。

公开(公告)号：US20080239325A1

公开(公告)日：2008-10-02

申请号：US11730055

申请日：2007-03-29

申请人： Kwok Sing Cheng ,  Ho Shan Ng ,  Lai Man Chau ,  Yeung Ming Chow ,  Tao Tao

发明人： Kwok Sing Cheng ,  Ho Shan Ng ,  Lai Man Chau ,  Yeung Ming Chow ,  Tao Tao

IPC分类号： G01B11/14

CPC分类号： G01S17/026 ,  G01S17/50

摘要： A method of sensing movement or proximity of objects by optical reflection is provided. The method includes the steps of transmitting a train of optical pulses towards a destination, sensing optical pulses reflected from the destination, and sensing and evaluating movement or proximity characteristics of objects at the destination with reference to variation in pulse width between transmitted and reflected optical pulses.

摘要翻译： 提供了通过光学反射来检测物体的移动或接近的方法。 该方法包括以下步骤：向目的地发送一列光脉冲，感测从目的地反射的光脉冲，并且参考目的地的物体的移动或接近特性，参考发射和反射的光脉冲之间的脉冲宽度的变化 。

公开(公告)号：US10358505B2

公开(公告)日：2019-07-23

申请号：US13993503

申请日：2011-12-20

申请人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

IPC分类号： C08F4/60 ,  C08F110/00 ,  C08F4/00 ,  C08F110/06 ,  C08F4/16 ,  C08F4/609

摘要： Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate.

公开(公告)号：US09382343B2

公开(公告)日：2016-07-05

申请号：US13996340

申请日：2011-12-01

申请人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao

发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao

IPC分类号： C08F4/76 ,  C08F110/06

CPC分类号： C08F4/76 ,  C08F110/06 ,  C08F4/651 ,  C08F2500/12 ,  C08F4/6543

摘要： Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions include an internal electron donor with an alkoxypropyl ester. The present catalyst compositions improve catalyst selectivity. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 4 g/10 min.

摘要翻译： 本文公开了催化剂组合物和聚合物，即由其制备的基于丙烯的聚合物。 本催化剂组合物包括具有烷氧基丙基酯的内电子给体。 本催化剂组合物改善催化剂选择性。 由本催化剂组合物制备的基于丙烯的聚合物的熔体流动速率大于4g / 10min。

公开(公告)号：US08576696B2

公开(公告)日：2013-11-05

申请号：US13148242

申请日：2010-02-01

申请人： Qihong Ge ,  Dong Bai ,  Tao Tao ,  Qiusheng Wang ,  Wen Chen

发明人： Qihong Ge ,  Dong Bai ,  Tao Tao ,  Qiusheng Wang ,  Wen Chen

IPC分类号： H04J11/00

CPC分类号： H04L5/0007 ,  H04L1/0009 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0064 ,  H04L27/2607

摘要： A mobile multimedia broadcast transmission system is provided, which comprises: a Reed-Solomon (RS) coding and byte interleaving unit, a Low Density Parity Check (LDPC) coder, a bit interleaver, a constellation mapping unit, a frequency domain symbol generator, a scrambler, an Inverse Fast Fourier Transform (IFFT) unit, a time domain framing unit, and a transmitter. According to the technical solutions provided in the present invention, the system can provide high-quality mobile multimedia services for users in a 6 MHz operation bandwidth. Furthermore, an optimized selection is performed on RS coding according to the operation bandwidth of the system, thereby selecting an appropriate coding mode according to different channel conditions. Accordingly, the byte interleaver is optimized, such that suitable interleaving parameters can be used to perform byte interleaving. With the technical solutions provided in the present invention, the continuous pilots, the discrete pilots and the digital sub-carriers of the system can be suitably configured and allocated according to the actual bandwidth of the system, thereby suitably configuring the system overhead of the mobile multimedia broadcast transmission system to efficiently utilize spectral resources for data transmission.

摘要翻译： 提供一种移动多媒体广播传输系统，其包括：里德 - 所罗门（RS）编码和字节交织单元，低密度奇偶校验（LDPC）编码器，比特交织器，星座映射单元，频域符号发生器， 扰频器，快速傅里叶逆变换（IFFT）单元，时域成帧单元和发射机。 根据本发明提供的技术方案，该系统可以为6MHz操作带宽的用户提供高质量的移动多媒体业务。 此外，根据系统的操作带宽对RS编码进行优化选择，从而根据不同的信道条件选择适当的编码模式。 因此，字节交织器被优化，使得适当的交织参数可以用于执行字节交织。 利用本发明提供的技术方案，可以根据系统的实际带宽适当地配置和分配系统的连续导频，离散导频和数字子载波，从而适当地配置移动台的系统开销 多媒体广播传输系统，有效利用频谱资源进行数据传输。

公开(公告)号：US20130139152A1

公开(公告)日：2013-05-30

申请号：US13306506

申请日：2011-11-29

申请人： Rong N. Chang ,  Mihwa Choi ,  Yexi Jiang ,  Meir Laker ,  Chang-Shing Perng ,  Hidayatullah H. Shaikh ,  Edward C. So ,  Tao Tao

发明人： Rong N. Chang ,  Mihwa Choi ,  Yexi Jiang ,  Meir Laker ,  Chang-Shing Perng ,  Hidayatullah H. Shaikh ,  Edward C. So ,  Tao Tao

IPC分类号： G06F9/455

CPC分类号： G06F9/45545 ,  G06F9/45558 ,  G06F9/5072 ,  G06F17/20 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2209/5019

摘要： High level characteristics are extracted from a virtual machine provisioning request stream for a cloud computing environment. A plurality of prediction models are generated for a plurality of different types of virtual machines. A regression-correlation ensemble is applied to appropriate ones of the prediction models to predict future virtual machine demand for the cloud computing environment.

摘要翻译： 从云计算环境的虚拟机配置请求流中提取高级特性。 为多个不同类型的虚拟机生成多个预测模型。 将回归相关系数应用于适当的预测模型，以预测云计算环境的未来虚拟机需求。

公开(公告)号：US20120322964A1

公开(公告)日：2012-12-20

申请号：US13580412

申请日：2011-02-24

申请人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao ,  Xiaodong Huang ,  James X. Shu

发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao ,  Xiaodong Huang ,  James X. Shu

IPC分类号： C07C69/78 ,  C08F4/649 ,  C08F4/00 ,  C08F110/06

CPC分类号： C08F10/06 ,  C08F110/06 ,  C08F4/651 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/04 ,  C08F4/654 ,  C08F4/6465 ,  C08F4/6494 ,  C08F4/6495 ,  C08F4/6497

摘要： Disclosed are halogenated amide esters that are suitable as internal electron donors in procatalyst compositions. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.

摘要翻译： 公开了适合作为前催化剂组合物中的内电子供体的卤化酰胺酯。 包含本发明的前催化剂组合物的齐格勒 - 纳塔催化剂组合物表现出改进的催化剂活性和/或改进的催化剂选择性并产生具有宽分子量分布的丙烯基烯烃。

公开(公告)号：US07978593B2

公开(公告)日：2011-07-12

申请号：US12310037

申请日：2006-11-24

申请人： Fajun Yan ,  Tao Tao ,  Wen Chen ,  Qihong Ge ,  Dong Bai ,  Qinghua Yang

发明人： Fajun Yan ,  Tao Tao ,  Wen Chen ,  Qihong Ge ,  Dong Bai ,  Qinghua Yang

IPC分类号： H04J11/00

CPC分类号： H04L5/0094 ,  H04L5/0007

摘要： A method for transmitting control information to indicate a receiver, comprising following steps: the control information is formed at transmitting side and is encoded based on the working status of the transmitting side of the system; after the encoded control information is mapped, it is multiplexed with other pilot symbol and service load, then an OFDM symbol is generated; the OFDM symbol is transformed from frequency domain to time domain, then a time domain sampling signal is obtained and transmitted to the receiving side of the system; at the receiving side, the time domain sampling signal transmitted by the transmitting side is received and transformed from time domain to frequency domain to form OFDM symbol; the control information is obtained from the valid sub carrier of the OFDM symbol, and the control information is decoded; each work information is extracted form the decoded control information, and the receiving terminal is indicated to execute respective receive process based on the extracted work information. The method can ensure the receiving terminal to receive data based on its own expectation, then reduces the work power consumption of the receiving terminal, and saves the run cost of the digital broadcast system.

摘要翻译： 一种用于发送控制信息以指示接收机的方法，包括以下步骤：控制信息形成在发送侧，并根据系统的发送侧的工作状态进行编码; 编码控制信息映射后，与其他导频符号和业务负载进行复用，生成OFDM符号; OFDM符号从频域变换为时域，得到时域采样信号并将其发送到系统的接收端; 在接收侧，从发送侧发送的时域采样信号从时域到频域被接收并变换为OFDM符号; 从OFDM符号的有效子载波获得控制信息，对该控制信息进行解码; 从解码控制信息中提取每个工作信息，并且基于所提取的工作信息指示接收终端执行相应的接收处理。 该方法可以确保接收终端根据自己的期望接收数据，降低接收终端的工作功耗，节省数字广播系统的运行成本。

公开(公告)号：US20110130530A1

公开(公告)日：2011-06-02

申请号：US12956050

申请日：2010-11-30

申请人： Joseph N. Coalter, III ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

发明人： Joseph N. Coalter, III ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

IPC分类号： C08F4/50 ,  B01J31/02 ,  B01J31/14 ,  C07C69/80 ,  C07C69/96

CPC分类号： C07C69/96 ,  B01J27/135 ,  B01J27/138 ,  B01J31/0201 ,  B01J31/0272 ,  B01J31/143 ,  B01J31/26 ,  B01J31/38 ,  C08F110/06 ,  C08F210/06 ,  Y02P20/52 ,  C08F4/651 ,  C08F4/6465 ,  C08F210/16 ,  C08F2500/12

摘要： A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure: [R1—O—C(O)—O—]xR2 wherein R1 is independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and R2 is an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are 2 atoms in the shortest chain connecting a first R1—O—C(O)—O— group and a second R1—O—C(O)—O— group.

摘要翻译： 用于聚合烯烃的固体，不溶于烃的催化剂组分，所述催化剂组分含有镁，钛和卤素，并且还含有具有以下结构的内部电子给体：[R 1 -O-C（O）-O-] x R 2 其中R1在每次出现时独立地为含有1至20个碳原子的脂族或芳族烃或取代的烃基; x为2-4; 并且R2是含有1至20个碳原子的脂族或芳族烃或取代的烃基，条件是在连接第一个R1-O-C（O）-O-基团和第二个R1的最短链中有2个原子 -O-C（O）-O-基。

公开(公告)号：US20110044390A1

公开(公告)日：2011-02-24

申请号：US12446076

申请日：2006-11-16

申请人： Junwei Wang ,  Qihong Ge ,  Tao Tao ,  Dong Bai ,  Wen Chen ,  Qinghua Yang ,  Qun Li

发明人： Junwei Wang ,  Qihong Ge ,  Tao Tao ,  Dong Bai ,  Wen Chen ,  Qinghua Yang ,  Qun Li

IPC分类号： H04L27/28

CPC分类号： H04J13/102 ,  H04B1/7075 ,  H04B1/709 ,  H04J13/0025 ,  H04J13/0051

摘要： A system and method for generating and detecting identifier sequence of a bandwidth-limited transmitter are disclosed, comprising an identifier sequence generating portion and a detection portion. The identifier sequence generating portion comprises: generating a frequency-domain random sequence; generating a frequency-domain orthogonal sequence; performing frequency-domain truncation; performing frequency-time transformation; and performing cycle extension. The identifier sequence receiving portion comprises: truncating the time-domain for the received signal; performing time-frequency domain transformation to obtain a frequency-domain signal; generating frequency-domain random sequence; generating a frequency-domain orthogonal sequence; correlating the frequency-domain orthogonal sequence with the frequency-domain signal de-scrambled by the frequency-domain random sequence; and detecting an output from a frequency-domain correlator by a threshold detecting device and determining the transmitter identifier sequence. The random sequence bandwidth generated by the system and the method of the present invention can be configured flexibly according to transmission bandwidth requirement, and the sequence may be arbitrarily allocated at the power of each frequency point inside the bandwidth. The present invention may be widely applied to multimedia broadcasting, terrestrial radio broadcasting, cable broadcasting and the like.

摘要翻译： 公开了一种用于产生和检测带宽限制发射机的标识符序列的系统和方法，包括标识符序列产生部分和检测部分。 标识符序列生成部分包括：产生频域随机序列; 产生频域正交序列; 执行频域截断; 执行频率 - 时间变换; 并执行循环扩展。 标识符序列接收部分包括：截断接收信号的时域; 执行时频域变换以获得频域信号; 产生频域随机序列; 产生频域正交序列; 将频域正交序列与由频域随机序列解扰的频域信号相关; 以及通过阈值检测装置检测来自频域相关器的输出，并确定发射机标识符序列。 系统生成的随机序列带宽和本发明的方法可以根据传输带宽要求灵活配置，并且该序列可以以带宽内的每个频点的功率任意分配。 本发明可以广泛地应用于多媒体广播，地面广播，有线广播等。