Method and apparatus using coordinate interleaving to increase diversity in a MIMO system
    1.
    发明授权
    Method and apparatus using coordinate interleaving to increase diversity in a MIMO system 失效
    使用坐标交织来增加MIMO系统中的分集的方法和装置

    公开(公告)号:US07409001B2

    公开(公告)日:2008-08-05

    申请号:US10918533

    申请日:2004-08-12

    IPC分类号: H04B7/02

    摘要: A method to increase diversity in MIMO fading channels interleaves coordinates of complex symbol(s) in a transmission frame after encoding and modulating. Specifically, an input signal is encoded and modulated into a codeword, jointly across at least two pipes, said pipes having space, time, frequency, or other nature, wherein the codeword spans a frame and is defined as at least one complex symbol whose complex values are all those to be transmitted during all channel uses covered by the frame. Each of the complex symbols have a first and second coordinate. After modulating, which may be combined with encoding in a signal space encoder, the coordinates are interleaved. In modulation, the complex symbols (typically two dimensional) may arise as elements of a multidimensional (typically greater than two dimensions) signal constellation, in which case those multidimensional constellation coordinates are the ones that are interleaved in the frame. The frame carrying the interleaved coordinates is transmitted by the first and at least second antennas, possible opposed sub-frames of the overall frame being transmitted separately by opposed antennas. A coset selector is used in some embodiments to maximize a minimum Hamming distance, and/or a minimum Euclidean distance, between coordinates within a coset to control diversity and/or coding gain. In some embodiments, the operation of the encoder and modulator is such as to maximize a minimum coordinate-wise Hamming distance, and/or a minimum Euclidean distance, between allowable codewords, and/or to provide additional structure for the allowable codewords. A method, transmitter, system, and mobile station are described.

    摘要翻译: 增加MIMO衰落信道分集的方法在编码和调制之后的传输帧中交织复杂符号的坐标。 具体地,输入信号被编码并且被调制成码字,共同跨越至少两个管道,所述管道具有空间,时间,频率或其他性质,其中码字跨越一个帧并被定义为至少一个复数符号,其复数 值都是在框架覆盖的所有通道使用期间传输的值。 每个复数符号具有第一和第二坐标。 在可以与信号空间编码器中的编码组合的调制之后,坐标被交织。 在调制中,复数符号(通常为二维)可以作为多维(通常大于二维)信号星座的元素而出现,在这种情况下,这些多维星座坐标是在帧中交错的那些。 承载交织坐标的帧由第一和至少第二天线发送,整个帧的可能相对的子帧由相对的天线分开发送。 在一些实施例中使用陪集选择器来最大化陪集中的坐标之间的最小汉明距离和/或最小欧氏距离以控制分集和/或编码增益。 在一些实施例中,编码器和调制器的操作使得可允许代码字之间的最小坐标汉明距离和/或最小欧几里德距离最大化,和/或为允许的码字提供附加结构。 描述了一种方法,发射机,系统和移动台。

    System and Method For Managing An Amount of Stored Energy in a Powered System
    4.
    发明申请
    System and Method For Managing An Amount of Stored Energy in a Powered System 有权
    用于管理动力系统中存储的能量的系统和方法

    公开(公告)号:US20090234521A1

    公开(公告)日:2009-09-17

    申请号:US12137090

    申请日:2008-06-11

    IPC分类号: G06F19/00 B60L15/32

    摘要: A system is provided for managing an amount of stored energy in a powered system. The powered system is configured to complete a mission from an initial stage to a final stage. The system includes a controller including a memory configured to store a plurality of handling stages. The controller is configured to determine the stored energy at the initial stage based upon the initial stage and a handling stage positioned between the initial stage and the final stage, and selected from among the plurality of handling stages stored in memory. The stored energy is necessary to propagate the powered system from the initial stage to the handling stage upon the occurrence of an anomaly in the powered system. Additionally, a method and computer readable media are provided for managing an amount of stored energy in a powered system.

    摘要翻译: 提供了一种用于管理动力系统中的存储能量的系统。 动力系统被配置为完成从初始阶段到最终阶段的任务。 该系统包括控制器,其包括被配置为存储多个处理级的存储器。 控制器被配置为基于初始阶段和位于初始阶段和最后阶段之间并且从存储在存储器中的多个处理阶段中选择的处理阶段来确定初始阶段的存储能量。 在动力系统发生异常时,存储的能量对于将动力系统从初始阶段传播到处理阶段是必要的。 另外,提供了一种用于管理动力系统中的存储能量的方法和计算机可读介质。

    Production of hydroperoxized functionalized olefinic compounds
    5.
    发明授权
    Production of hydroperoxized functionalized olefinic compounds 失效
    氢过氧化官能化烯烃化合物的生产

    公开(公告)号:US07476769B1

    公开(公告)日:2009-01-13

    申请号:US11983685

    申请日:2007-11-09

    IPC分类号: C07C409/02 C08J3/28

    CPC分类号: C08J3/28 C08J2321/00

    摘要: Process for the preparation of a hydroperoxide functionalized olefinic compound in an oxidation reactor containing a particulate catalyst bed comprising a light induced photosensitized catalyst component supported on a particulate substrate material forming a permeable catalyst bed. The photoenergized catalyst component is a photoreductant material which is effective for the conversion of triplet oxygen to singlet oxygen under illumination with ultraviolet or visible light. An oxygen containing feed stream containing triplet oxygen is supplied to the catalyst bed. The catalyst bed is irradiated at an intensity to convert triplet oxygen to singlet oxygen to produce a singlet oxygen enriched gas stream. The enriched gas stream is supplied to a second reactor which contains a dispersion of an olefinic component having an allylic hydrogen which is contacted with the enriched gas stream under conditions effective to cause an allylic rearrangement and introduce hydroperoxide functionalization into the olefinic component.

    摘要翻译: 在含有颗粒催化剂床的氧化反应器中制备氢过氧化物官能化烯烃化合物的方法,所述颗粒催化剂床包含负载在形成可渗透催化剂床的颗粒基质材料上的光诱导的光敏催化剂组分。 光电催化剂组分是一种光致抗蚀剂材料,其在用紫外线或可见光照明下有效地将三线态氧转化为单线态氧。 将含有三重态氧的含氧进料流供给催化剂床。 以强度照射催化剂床,以将三线态氧转化为单线态氧以产生单线态富氧气流。 将富集的气体流供应到第二反应器,该第二反应器含有具有烯丙基氢的烯烃组分的分散体,所述烯烃组分在有效引起烯丙基重排并将氢过氧化物官能化引入到烯烃组分中的条件下与富集气流接触。

    Cocatalysts for reduction of production problems in metallocene-catalyzed polymerizations
    6.
    发明授权
    Cocatalysts for reduction of production problems in metallocene-catalyzed polymerizations 有权
    用于减少茂金属催化聚合中的生产问题的助催化剂

    公开(公告)号:US07282546B2

    公开(公告)日:2007-10-16

    申请号:US11158454

    申请日:2005-06-22

    IPC分类号: C08F4/42

    摘要: Polyolefins may be prepared using a cocatalyst conforming to the formula: AIRz(Xz)nLzm wherein Rz is a linear or branched organic moiety having at least 5 carbons and Xz is a linear or branched organic moiety having at least 5 carbons or a heterocyclic moiety having at least 4 atoms and can be anionic or di-anionic. The aluminum complex may also be in the form of an adduct complex where Lz is a Lewis base and m=1-3. The cocatalyst Rz components are selected such that they do not react with water under polymerization conditions to form a species that is highly soluble in the polymerization diluent. Use of the specified cocatalyst reduces fouling during metallocene-catalyzed runs and “post-metallocene hangover” when the same production equipment is transitioned to non-metallocene catalyst runs using catalysts such as chromium.

    摘要翻译: 聚烯烃可以使用符合下列公式的助催化剂制备:<?in-line-formula description =“In-line formula”end =“lead”?>空气(X < ?????z???????????????????????????????????????? 其中R z是具有至少5个碳原子的直链或支链有机部分,X是具有至少5个碳原子的直链或支链有机部分或具有至少5个碳原子的杂环部分, 至少4个原子,可以是阴离子或二阴离子。 铝络合物也可以是加合物络合物的形式,其中L z是路易斯碱,m = 1-3。 选择助催化剂R z z组分使得它们在聚合条件下不与水反应以形成高度可溶于聚合稀释剂的物质。 使用特定的助催化剂可以减少金属茂催化运行期间的结垢和“后金属茂宿醉”,当相同的生产设备使用催化剂如铬转变为非茂金属催化剂运行时。

    SOLUBLE MAGNESIUM COMPLEXES USEFUL FOR THE PRODUCTION OF POLYOLEFIN CATALYSTS AND CATALYSTS PREPARED THEREWITH
    7.
    发明申请
    SOLUBLE MAGNESIUM COMPLEXES USEFUL FOR THE PRODUCTION OF POLYOLEFIN CATALYSTS AND CATALYSTS PREPARED THEREWITH 失效
    用于生产聚烯烃催化剂的可溶性镁复合材料及其制备的催化剂

    公开(公告)号:US20060135354A1

    公开(公告)日:2006-06-22

    申请号:US11016104

    申请日:2004-12-17

    申请人: Tim Coffy Steven Gray

    发明人: Tim Coffy Steven Gray

    IPC分类号: C08F4/44 B01J31/00

    摘要: A method of forming a polyolefin catalyst component includes halogenating metal complexes. The metal complexes result from reacting a metal alkoxide with an alcohol-ether. A particular non-limiting example is a magnesium complex formed by reacting magnesium alkoxide with an ethylene alcohol-ether, and then chlorinating the magnesium complex. Catalyst components, catalysts, catalyst systems, polyolefin polymers and methods of making each are disclosed.

    摘要翻译: 形成聚烯烃催化剂组分的方法包括卤化金属络合物。 金属络合物是由金属醇盐与醇 - 醚反应产生的。 特别的非限制性实例是通过使烷氧基镁与乙烯醇 - 醚反应形成的镁络合物,然后氯化镁络合物。 公开了催化剂组分,催化剂,催化剂体系,聚烯烃聚合物和制备方法。

    Controlled finishes for free surface polyethylene resins
    8.
    发明申请
    Controlled finishes for free surface polyethylene resins 审中-公开
    自由表面聚乙烯树脂的控制表面处理

    公开(公告)号:US20060020063A1

    公开(公告)日:2006-01-26

    申请号:US10896713

    申请日:2004-07-22

    IPC分类号: C08K5/49

    摘要: It has been discovered that the amount of fluoropolymer additive used in a polyethylene resin affects the quality of finish of an article made with free surface polyethylene resins using chromium, Ziegler-Natta or metallocene catalysts. Reducing the amount of fluoropolymer increases the matte nature of the polymer finish, whereas increasing the amount of fluoropolymer increases the gloss nature of the finish. Introducing a peroxide or air in an increasing amount increases the long chain branching (LCB) of the polymer. Introducing an antioxidant in an amount to balance the peroxide amount can improve the melt strength of the polymer, and the amount of antioxidant is balanced with the amount of peroxide and/or air. The resultant polymer density ranges between about 0.960 and 0.962 g/cm3 inclusive, where the molecular weight distribution (MWD) of the polymer is greater than 3 and less than 6.

    摘要翻译: 已经发现,聚乙烯树脂中使用的含氟聚合物添加剂的量影响使用铬,齐格勒 - 纳塔或茂金属催化剂的用游离表面聚乙烯树脂制成的制品的表面光洁度。 减少含氟聚合物的量增加了聚合物涂饰的无光泽性质,而增加含氟聚合物的量增加了涂饰的光泽性质。 以增加的量引入过氧化物或空气增加聚合物的长链支化(LCB)。 引入抗氧化剂以达到平衡过氧化物量可以提高聚合物的熔体强度,并且抗氧化剂的量与过氧化物和/或空气的量平衡。 所得聚合物密度在约0.960至0.962g / cm 3之间,其中聚合物的分子量分布(MWD)大于3且小于6。

    Motorcycle wheelie training device
    9.
    发明授权
    Motorcycle wheelie training device 失效
    摩托车车轮训练装置

    公开(公告)号:US08408911B2

    公开(公告)日:2013-04-02

    申请号:US12288308

    申请日:2008-10-18

    申请人: Steven Gray

    发明人: Steven Gray

    IPC分类号: G09B9/04

    CPC分类号: B62H7/00

    摘要: The present invention provides an apparatus and a method for using the apparatus for safely training a motorcycle rider to perform a wheelie, either while moving or while stationary. The apparatus provides a safety system which prevents the motorcycle from tipping over backwards or sideways.

    摘要翻译: 本发明提供一种使用该装置的装置和方法,用于在移动或静止时同时安全地训练摩托车骑手来执行车轮。 该装置提供了防止摩托车向后或侧向倾斜的安全系统。