公开(公告)号：US08461276B2

公开(公告)日：2013-06-11

申请号：US13525443

申请日：2012-06-18

申请人： Tim Coffy ,  Kenneth Blackmon ,  Joseph Thorman ,  David Rauscher ,  Jun Tian ,  William Gauthier ,  Nathan Williams

发明人： Tim Coffy ,  Kenneth Blackmon ,  Joseph Thorman ,  David Rauscher ,  Jun Tian ,  William Gauthier ,  Nathan Williams

IPC分类号： C08F4/6592 ,  C08F4/60 ,  C08F4/603 ,  C08F4/606 ,  C08F4/653

CPC分类号： C08F10/06 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F210/06 ,  C08F2/00 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/26 ,  C08F4/65904

摘要： Propylene polymerization processes, polymers and films formed therefrom are described herein. The propylene polymerization processes generally include contacting propylene and an amount of ethylene with a first metallocene catalyst and a second metallocene catalyst within a polymerization reaction vessel to form a propylene based polymer, wherein the amount is an amount effective to form the propylene based polymer including from about 2 wt. % to about 6 wt. % ethylene, the second metallocene catalyst is capable of incorporating a greater amount of ethylene into the propylene based polymer than the first metallocene catalyst and wherein the first metallocene catalyst is capable of forming a propylene/ethylene random copolymer exhibiting a melting temperature that is greater than that of a propylene/ethylene random copolymer formed from the second metallocene catalyst.

摘要翻译： 本文描述了丙烯聚合方法，由其形成的聚合物和膜。 丙烯聚合方法通常包括在聚合反应容器内将丙烯和一定量的乙烯与第一茂金属催化剂和第二茂金属催化剂接触以形成丙烯基聚合物，其中该量是有效形成基于丙烯的聚合物的量，包括 约2重量％ ％至约6wt。 ％乙烯，第二茂金属催化剂能够比第一茂金属催化剂在丙烯基聚合物中引入更多量的乙烯，并且其中第一茂金属催化剂能够形成丙烯/乙烯无规共聚物，其表现出大于 由第二茂金属催化剂形成的丙烯/乙烯无规共聚物。

公开(公告)号：US08436112B2

公开(公告)日：2013-05-07

申请号：US12013774

申请日：2008-01-14

申请人： Jun Tian ,  William Gauthier ,  David Rauscher ,  Shady Henry

发明人： Jun Tian ,  William Gauthier ,  David Rauscher ,  Shady Henry

IPC分类号： C08F4/52 ,  C08F4/64 ,  C08F4/76

CPC分类号： C08F4/76 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/00 ,  Y10T428/2982 ,  C08F4/65916 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24 ,  C08F2500/15

摘要： The invention is directed to a metallocene catalyst system comprising an inert silica support having pores with a peak pore volume of greater than about 0.115 mL/g at a pore diameter between about 250 Angstroms and about 350 Angstroms, and an alumoxane activator, with the metallocene being bound substantially throughout the support. The activator is grafted to the support in a solvent at a reflux temperature of toluene to obtain an aluminoxane on silica, and a metallocene component is added to make a MCS having a metallocene loading of about 2 wt %. This facilitates the production of metallocene catalyst systems having increased catalytic activity than previously recognized that is at least about 20 percent higher than the catalytic activity for a metallocene loading of about 1 wt % where the activator is grafted to the support at room temperature.

摘要翻译： 本发明涉及一种茂金属催化剂体系，其包含惰性二氧化硅载体，其具有在孔直径约250埃至约350埃之间具有大于约0.115mL / g的峰孔体积的孔，以及铝氧烷活化剂与茂金属 在整个支撑体上大体上被束缚。 将活化剂在甲苯的回流温度下在溶剂中接枝到载体上，得到二氧化硅上的铝氧烷，并加入金属茂组分以制备茂金属负载量为约2重量％的MCS。 这促进了催化活性增加的茂金属催化剂体系的生产，其催化活性比之前所公认的高约1％（重量），其中活化剂在室温下接枝到载体上的金属茂负载量的催化活性高至少约20％。

公开(公告)号：US08406297B2

公开(公告)日：2013-03-26

申请号：US12553775

申请日：2009-09-03

申请人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

发明人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

IPC分类号： H04N7/26

CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.

摘要翻译： 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内帧的图像序列进行编码的方法包括：在至少一组图像（GOP）中对帧间帧和帧内进行分组，并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧，该方法还包括将帧划分成多个宏块，将多个宏块中的宏块识别为具有感兴趣区域（ROI），并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码，从而产生编码图像序列，并输出编码图像序列。

公开(公告)号：US08265008B2

公开(公告)日：2012-09-11

申请号：US12537903

申请日：2009-08-07

申请人： Yuantao Zhang ,  Hua Zhou ,  Jun Tian

发明人： Yuantao Zhang ,  Hua Zhou ,  Jun Tian

IPC分类号： H04K1/10

CPC分类号： H04L1/1692 ,  H04J13/0048 ,  H04J13/0059 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053

摘要： The present invention discloses a transmission resource assignment method for response signals, a feedback method of response signals and a processing method of response signals. The transmission resource assignment method for response signals according to the present invention includes the steps of: determining a list of mobile stations required to transmit response signals currently; determining the number of the response signals required to be transmitted by each mobile station; and assigning a frequency-domain sequence and a time-domain sequence for each mobile station to transmit the response signals; wherein for multiple mobile stations assigned with the same frequency-domain sequence, the time-domain sequence assigned to the mobile station required to transmit multiple response signal groups is divided into multiple subsequences to be used to transmit the multiple response signal groups of the mobile station respectively; and parts of the time-domain sequences of different mobile stations corresponding to the multiple subsequences are orthogonal to each other respectively.

摘要翻译： 本发明公开了一种用于响应信号的传输资源分配方法，响应信号的反馈方法和响应信号的处理方法。 根据本发明的用于响应信号的传输资源分配方法包括以下步骤：确定当前发送响应信号所需的移动站列表; 确定每个移动台需要发送的响应信号的数量; 以及为每个移动站分配频域序列和时域序列以发送响应信号; 其中对于分配了相同频域序列的多个移动站，分配给发送多个响应信号组所需的移动站的时域序列被划分为多个子序列，用于发送移动站的多个响应信号组 分别; 并且与多个子序列相对应的不同移动站的时域序列的部分分别彼此正交。

公开(公告)号：US08243841B2

公开(公告)日：2012-08-14

申请号：US12175255

申请日：2008-07-17

申请人： Jun Wang ,  Jun Tian ,  Hiroyuki Hayashi

发明人： Jun Wang ,  Jun Tian ,  Hiroyuki Hayashi

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/0006 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0086 ,  H04L5/0044 ,  H04L27/2601

摘要： The present invention discloses a symbol interleaving and channel mapping device and method as well as a mobile communication system. The symbol interleaving and channel mapping device is used in a transmitter of a mobile communication system, said transmitter receiving the channel state information fed back from a receiver of the mobile communication system; the symbol interleaving and channel mapping device comprises a symbol classification unit for classifying symbols according to their importance; a symbol sub-carrier mapping unit for performing a sub-carrier mapping according to the classification result of said symbol classification unit and the channel state information such that the important symbols correspond to the non deep fading sub-carrier as much as possible.

摘要翻译： 本发明公开了一种符号交织和信道映射设备及方法以及移动通信系统。 符号交织和信道映射设备用于移动通信系统的发射机，所述发射机接收从移动通信系统的接收机反馈的信道状态信息; 符号交织和信道映射设备包括：符号分类单元，用于根据其符号对符号进行分类; 符号子载波映射单元，用于根据所述符号分类单元的分类结果和信道状态信息执行子载波映射，使得重要符号尽可能地对应于非深衰落子载波。

公开(公告)号：US20120183173A1

公开(公告)日：2012-07-19

申请号：US13340908

申请日：2011-12-30

申请人： Zhu Li ,  Jun Tian ,  Hong Heather YU

发明人： Zhu Li ,  Jun Tian ,  Hong Heather YU

IPC分类号： G06K9/00

CPC分类号： G06K9/00744

摘要： An embodiment of an apparatus to authenticate a sequence of video frames includes a process to choose intra-frames of the sequence and sample DC components thereof to produce a set of test fingerprints. To reduce a dimensionality of the test fingerprints, the DC components of the chosen intra-frames are multiplied by a projection matrix formed of eigenvectors associated with the larger eigenvalues of a covariance matrix for a library of frames. The projected test fingerprints are compared against a reference set of fingerprints for authentication. Time-stamp spacings of the chosen intra-frames are determined, and these spacings are employed to select candidate frames for authentication in the reference set of fingerprints.

摘要翻译： 用于认证视频帧序列的装置的实施例包括选择序列的帧内和其DC样本的处理，以产生一组测试指纹。 为了降低测试指纹的维度，将所选择的帧内的DC分量乘以由与帧库相关的协方差矩阵的较大特征值相关联的特征向量形成的投影矩阵。 将投影的测试指纹与用于认证的参考指纹集进行比较。 确定所选择的帧内的时间间隔，并且采用这些间隔来选择参考指纹集中的认证候选帧。

公开(公告)号：US20110269923A1

公开(公告)日：2011-11-03

申请号：US13180672

申请日：2011-07-12

申请人： Tim J. Coffy ,  Michel Daumerie ,  Kenneth P. Blackmon ,  William Gauthier ,  Jun Tian ,  Joseph Thorman

发明人： Tim J. Coffy ,  Michel Daumerie ,  Kenneth P. Blackmon ,  William Gauthier ,  Jun Tian ,  Joseph Thorman

IPC分类号： C08F4/76 ,  C08F4/42

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F210/06 ,  Y10S526/943 ,  C08F4/65904 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/05

摘要： Embodiments of the invention generally include multi-component catalyst systems, polymerization processes and heterophasic copolymers formed by the processes. The multi-component catalyst system generally includes a first catalyst component selected from Ziegler-Natta catalyst systems including a diether internal electron donor and a metallocene catalyst represented by the general formula XCpACpBMAn, wherein X is a structural bridge, CpA and CpB each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4. The multi-component catalyst system further includes a second catalyst component generally represented by the formula XCpACpBMAn, wherein X is a structural bridge, CpA and CpB each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4 and wherein the second catalyst component exhibits a higher ethylene response than the first catalyst component.

摘要翻译： 本发明的实施方案通常包括通过该方法形成的多组分催化剂体系，聚合方法和多相共聚物。 多组分催化剂体系通常包括选自齐格勒 - 纳塔催化剂体系的第一催化剂组分，其包括二醚内电子给体和由通式XCpACpBMAn表示的茂金属催化剂，其中X是结构桥，CpA和CpB各自表示环戊二烯基 基团或其衍生物，各自相同或不同，并且可以是取代或未取代的，M是过渡金属，A是烷基，烃基或卤素基团，n是0和4之间的整数。多组分催化剂 系统还包括通常由式XCpACpBMAn表示的第二催化剂组分，其中X是结构桥，CpA和CpB各自表示环戊二烯基或其衍生物，各自相同或不同，并且可以是取代或未取代的，M是 过渡金属，A是烷基，烃基或卤素基团，n是0至4之间的整数， nd催化剂组分表现出比第一催化剂组分更高的乙烯响应。

公开(公告)号：US08048827B2

公开(公告)日：2011-11-01

申请号：US12641526

申请日：2009-12-18

申请人： Gordon T. Rivers ,  Jun Tian ,  John B. Trenery

发明人： Gordon T. Rivers ,  Jun Tian ,  John B. Trenery

IPC分类号： C09K8/82 ,  E21B43/25 ,  E21B43/16

CPC分类号： C09K8/52 ,  C09K2208/22 ,  C10L3/10

摘要： Gas hydrate formation in a well completion fluid in the annular space of a hydrocarbon producing well may be controlled by the incorporation of effective amounts of one or more low dose gas hydrate inhibitors, including but not limited to, low dosage hydrate inhibitors (LDHIs), kinetic hydrate inhibitors, dendrimeric or branched compounds, linear polymers and copolymers, grafted or branched linear polymers and copolymers, and onium compounds.

摘要翻译： 可以通过并入有效量的一种或多种低剂量天然气水合物抑制剂（包括但不限于低剂量水合物抑制剂（LDHI））来控制在烃产生井的环形空间中的完井流体中的气体水合物形成， 动态水合物抑制剂，树枝状或支链化合物，线性聚合物和共聚物，接枝或支化线型聚合物和共聚物，以及鎓化合物。

公开(公告)号：USD646598S1

公开(公告)日：2011-10-11

申请号：US29362795

申请日：2010-06-01

申请人： Jun Tian

设计人： Jun Tian

公开(公告)号：US08032758B2

公开(公告)日：2011-10-04

申请号：US12138198

申请日：2008-06-12

申请人： Jun Tian

发明人： Jun Tian

IPC分类号： H04L9/00

CPC分类号： H04N1/32144 ,  G06F21/10 ,  G06F2221/0737 ,  G06T1/0042 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0083 ,  G11B20/00007 ,  G11B20/00086 ,  G11B20/00884 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/00084 ,  H04N1/32219 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2005/91335 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/327 ,  H04N2201/3283

摘要： The disclosure describes methods for using digital watermarking to authenticate digital media signals, such as images, audio and video signals. It also describes techniques for using embedded watermarks to repair altered parts of a media signal when alteration is detected. Alteration is detected using hashes, digital watermarks, and a combination of hashes and digital watermarks.

摘要翻译： 本公开描述了使用数字水印来认证诸如图像，音频和视频信号的数字媒体信号的方法。 它还描述了当检测到改变时使用嵌入水印修复媒体信号的改变部分的技术。 使用散列，数字水印以及散列和数字水印的组合来检测变化。