Oxazolidinium compounds
    71.
    发明授权
    Oxazolidinium compounds 有权
    恶唑烷鎓化合物

    公开(公告)号:US08575358B2

    公开(公告)日:2013-11-05

    申请号:US13410405

    申请日:2012-03-02

    IPC分类号: C07D263/06 C07D413/00

    摘要: Oxazolidinium compounds are formed by the reaction of a halohydrin or an epoxide with a secondary amine and an aldehyde or a ketone. The oxazolidinium compounds are formed directly and do not require the reaction of a pre-formed oxazolidine with an alkylating agent. The compounds are useful as gas hydrate inhibitors in oil and gas production and transportation. The oxazolidinium compounds have the structure: where R is a saturated or unsaturated alkyl group containing from 3 to 20 carbon atoms, where R has an absence of aryl groups; R1 and R2 each independently have 1 to 20 carbon atoms, may be linear, branched or cyclic; linear, branched or cyclic groups having 1 to 20 carbon atoms substituted with alkyl groups, aryl groups, alkylaryl groups, and aryl groups substituted with alkoxy groups, and X is selected from the group consisting of chlorine, fluorine, bromine or iodine.

    摘要翻译: 恶唑烷鎓化合物通过卤代醇或环氧化物与仲胺和醛或酮的反应形成。 恶唑烷鎓化合物直接形成,不需要预形成的恶唑烷与烷基化剂的反应。 该化合物可用作油气生产和运输中的天然气水合物抑制剂。 恶唑烷鎓化合物具有以下结构:其中R是含有3至20个碳原子的饱和或不饱和烷基,其中R不存在芳基; R 1和R 2各自独立地具有1至20个碳原子,可以是直链,支链或环状的; 被烷基取代的具有1至20个碳原子的直链,支链或环状基团,芳基,烷基芳基和被烷氧基取代的芳基,X选自氯,氟,溴或碘。

    Compressive sampling for multimedia coding
    72.
    发明授权
    Compressive sampling for multimedia coding 有权
    多媒体编码的压缩采样

    公开(公告)号:US08553994B2

    公开(公告)日:2013-10-08

    申请号:US12358077

    申请日:2009-01-22

    IPC分类号: G06K9/36 G06K9/46

    摘要: An apparatus comprising a decorrelator, a compressive sampler coupled to the decorrelator, and an encoder coupled to the compressive sampler, wherein the compressive sampler is configured to receive sparse data and compress the sparse data using compressive sampling. Also included is a network component comprising at least one processor configured to implement a method comprising decorrelating sparse data or data including sparse data, compressing the sparse data using compressive sampling, and encoding the data. Also included is a method comprising receiving a data stream comprising a sparse data portion, compressing the sparse data portion using compressive sampling, and compressing the remaining data portion without using compressive sampling.

    摘要翻译: 一种包括去相关器,耦合到去相关器的压缩采样器和耦合到压缩采样器的编码器的装置,其中压缩采样器被配置为接收稀疏数据并使用压缩采样来压缩稀疏数据。 还包括网络组件,其包括至少一个处理器,其被配置为实现包括使稀疏数据解复用的稀疏数据或包括稀疏数据的数据,使用压缩采样来压缩稀疏数据以及对数据进行编码的方法。 还包括一种方法,包括接收包括稀疏数据部分的数据流,使用压缩采样压缩稀疏数据部分,并且在不使用压缩采样的情况下压缩剩余的数据部分。

    Method and apparatus for generating pre-coding matrix codebook

    公开(公告)号:US08520761B2

    公开(公告)日:2013-08-27

    申请号:US13411160

    申请日:2012-03-02

    IPC分类号: H04B7/02 H04L1/02

    摘要: This disclosure relates a method and apparatus for generating pre-coding matrix codebook. The method for generating pre-coding matrix codebook, comprising: acquiring a universal set of pre-coding matrixes in a first format; acquiring a universal set of pre-coding matrixes in a second format; selecting a first predetermined number of pre-coding matrixes in the first format from the universal set of pre-coding matrixes in the first format; and selecting a second predetermined number of pre-coding matrixes in the second format from the universal set of pre-coding matrixes in the second format, according to the selected first predetermined number of pre-coding matrixes in the first format.

    MULTI-COMPONENT CATALYST SYSTEMS AND POLYMERIZATION PROCESSES FOR FORMING IN-SITU HETEROPHASIC COPOLYMERS AND/OR VARYING THE XYLENE SOLUBLES CONTENT OF POLYOLEFINS
    74.
    发明申请
    MULTI-COMPONENT CATALYST SYSTEMS AND POLYMERIZATION PROCESSES FOR FORMING IN-SITU HETEROPHASIC COPOLYMERS AND/OR VARYING THE XYLENE SOLUBLES CONTENT OF POLYOLEFINS 有权
    多组分催化剂体系和形成异源共聚物的聚合方法和/或改变聚烯烃的二甲苯溶液含量

    公开(公告)号:US20130102743A9

    公开(公告)日:2013-04-25

    申请号:US13180672

    申请日:2011-07-12

    IPC分类号: C08F4/76 C08F4/42

    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,聚合方法和异相共聚物。 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。

    Adaptive transmission method and system for wireless communication system
    75.
    发明授权
    Adaptive transmission method and system for wireless communication system 有权
    无线通信系统的自适应传输方法和系统

    公开(公告)号:US08416865B2

    公开(公告)日:2013-04-09

    申请号:US12495945

    申请日:2009-07-01

    IPC分类号: H04K1/10

    摘要: The present invention provides a wireless transmission method and system based on maximum multi-path delay estimation. A wireless transmission method based on an estimation of maximum multi-paths delay, comprising: a communication apparatus involved in wireless communication estimates the maximum multi-paths delay of a currently received frame; the communication apparatus performs a quantization and coding on feedback information related with the estimated maximum multi-paths delay, and then sends the feedback information which has been subjected to the quantization and coding to an opposing communication apparatus which is in wireless communication with the communication apparatus; the opposing communication apparatus recovers the feedback information by demodulating and decoding the feedback information which has been subjected to the quantization and coding; the opposing communication apparatus performs an adaptive adjustment of wireless signals transmitted to the communication apparatus, based on the recovered feedback information. With this method, system parameters can be adaptively adjusted so as to that sufficiently improves the spectrum utilization efficiency of wireless resources (the throughput is increased by about 5%).

    摘要翻译: 本发明提供一种基于最大多径延迟估计的无线传输方法和系统。 一种基于最大多路径延迟的估计的无线传输方法,包括:无线通信中涉及的通信装置估计当前接收到的帧的最大多径延迟; 通信装置对与估计的最大多径延迟相关的反馈信息进行量化和编码,然后将经过量化和编码的反馈信息发送到与通信装置无线通信的相对的通信装置 ; 相对的通信装置通过对经过量化和编码的反馈信息进行解调和解码来恢复反馈信息; 相对的通信装置基于恢复的反馈信息对发送到通信装置的无线信号进行自适应调整。 通过这种方法,可以自适应地调整系统参数,以充分提高无线资源的频谱利用效率(吞吐量提高约5%)。

    Hydrate inhibition test loop
    76.
    发明授权
    Hydrate inhibition test loop 有权
    水合物抑制试验回路

    公开(公告)号:US08334141B2

    公开(公告)日:2012-12-18

    申请号:US12897557

    申请日:2010-10-04

    申请人: Jun Tian

    发明人: Jun Tian

    IPC分类号: G01N33/00 B01J19/00

    摘要: The detecting and monitoring of solid structure or phase transformation, such as those used for testing the formation of gas hydrates and their inhibition by chemical additives may be conducted in a multi-test assembly of laboratory bench scale loops. The test loop contains a fluid that includes water and hydrate-forming guest molecules such as methane, ethane, carbon dioxide and the like at hydrate-forming conditions of low temperature and high pressure. A small bit or “pig” may be circulated through the test loop at variable speeds to circulate the fluid in the loop. The pig may be moved or impelled through the test loop remotely. The exterior of the pig and/or the interior of the loop may be smooth and/or have a friction-reducing coating thereon to facilitate movement of the pig through the loop. The formation of hydrates may be monitored with consistent and reproducible results.

    摘要翻译: 固体结构或相变的检测和监测,例如用于测试气体水合物形成的那些及其由化学添加剂的抑制作用可以在实验室台秤循环的多测试组件中进行。 测试回路包含在低温高压水合物形成条件下包含水和形成水合物的客体分子如甲烷,乙烷,二氧化碳等的流体。 一小段猪或猪可以以可变速度循环通过测试回路,以使流体循环。 猪可以通过测试环路远程移动或推动。 猪的外部和/或环的内部可以是平滑的和/或在其上具有减摩擦的涂层以便于猪通过环的移动。 水合物的形成可以用一致和可重复的结果来监测。

    Method and system for temporal synchronization
    77.
    发明授权
    Method and system for temporal synchronization 有权
    时间同步的方法和系统

    公开(公告)号:US08331609B2

    公开(公告)日:2012-12-11

    申请号:US12309372

    申请日:2006-12-08

    IPC分类号: G06K9/00

    CPC分类号: G06T1/005 G06T2201/0065

    摘要: Embodiments of the present invention provide a method, apparatus and system for temporal synchronization of digital content based on a marker symbol and a marker code. A marker symbol is inserted at an identifiable location of a payload (e.g., the beginning and/or end of a payload) at regular intervals in the digital content and the payload is marker coded to form a periodic sequence. The payload is marker coded such that the maker symbol is not repeated by the coded payload. The periodic sequence is then embedded into digital content. A decoder is able to re-synchronize the payload by determining the location of the marker symbol. As such, a method, apparatus and system is provided for robust temporal synchronization for, for example, content encoding and decoding for applications such as audio and video water-marking and the like.

    摘要翻译: 本发明的实施例提供了一种基于标记符号和标记码的数字内容的时间同步的方法,装置和系统。 在数字内容中以规则的间隔将标记符号插入有效载荷的可识别位置(例如,有效负载的开始和/或结束),并且有效载荷被标记编码以形成周期性序列。 有效载荷是标记编码的,使得制造商符号不被编码的有效载荷重复。 然后将周期序列嵌入到数字内容中。 解码器能够通过确定标记符号的位置来重新同步有效载荷。 因此,提供了用于例如音频和视频水印等应用的内容编码和解码的鲁棒时域同步的方法,装置和系统。

    Compressed Domain Video Watermarking
    79.
    发明申请
    Compressed Domain Video Watermarking 有权
    压缩域视频水印

    公开(公告)号:US20120076206A1

    公开(公告)日:2012-03-29

    申请号:US13198371

    申请日:2011-08-04

    IPC分类号: H04N7/32 H04N7/24 H04N7/26

    摘要: In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies.

    摘要翻译: 根据实施例,一种对编码视频帧进行水印处理的方法包括电子地接收包含被划分成多个宏块的多个编码视频帧的比特流,基于接收的比特流中的预测信息确定宏块依赖性, 确定具有最小数量的宏块相关性的一组宏块,以及将水印嵌入从具有最少数量的宏块依赖性的宏组中选择的多个宏块中。