Method and apparatus for reducing waiting time jitter in pulse stuffing
synchronized digital communications
    24.
    发明授权
    Method and apparatus for reducing waiting time jitter in pulse stuffing synchronized digital communications 失效
    减少脉冲填充同步数字通信中等待时间抖动的方法和装置

    公开(公告)号:US5680422A

    公开(公告)日:1997-10-21

    申请号:US429951

    申请日:1995-04-27

    IPC分类号: H04J3/07 H04L7/00

    CPC分类号: H04J3/073

    摘要: A wander reduction mechanism in an HDSL pulse-stuffing synchronization system provides a more precise measure of the phase of the incoming asynchronous signal than is obtained in conventional schemes, in which the only information available is the presence or absence of stuffing pulses. An auxiliary phase comparator and phase adjuster are incorporated into the synchronizer-multiplexer to generate a reference data clock (derived from the synchronized data clock), so that the incoming unsynchronized data clock can be tracked. As the clock is iteratively phase-adjusted, the respective changes are accumulated. At the end of a prescribed measurement interval, the net contents of the accumulator are encoded and transported over the synchronous digital data communication channel to the receiver. By decoding this sequence information, the desynchronizer is able to generate a desynchronized data clock having the same number of net phase adjustments during a measurement period as the reference clock at the synchronizer.

    摘要翻译: 在HDSL脉冲填充同步系统中的漫游减少机制提供了比传统方案中获得的输入异步信号的相位更精确的测量,其中唯一可用的信息是填充脉冲的存在或不存在。 辅助相位比较器和相位调节器被并入到同步器多路复用器中以产生参考数据时钟(从同步数据时钟导出),使得可以跟踪输入的不同步的数据时钟。 随着时钟被迭代地相位调整,各个变化被累积。 在规定的测量间隔结束时,累加器的净内容被编码并通过同步数字数据通信信道传送到接收机。 通过对该序列信息进行解码,去同步器能够在测量周期期间产生具有相同数量的净相位调整的去同步数据时钟作为同步器处的参考时钟。

    Anesthetic pharmaceutical combination
    26.
    发明授权
    Anesthetic pharmaceutical combination 失效
    麻醉药物组合

    公开(公告)号:US5505922A

    公开(公告)日:1996-04-09

    申请号:US394049

    申请日:1995-02-24

    IPC分类号: A61K33/14 A61K33/00

    CPC分类号: A61K33/14 Y10S514/818

    摘要: An anesthetic pharmaceutical combination comprising the combination of a local anesthetic and lithium ions present in an amount effective to lower the amount of the local anesthetic necessary to achieve equivalent anesthetic effect in a patient and a method of use of the anesthetic pharmaceutical combination.

    摘要翻译: 一种麻醉药物组合,其包含局部麻醉剂和锂离子的组合,所述组合以有效降低实现患者的等效麻醉效果所需的局部麻醉剂的量的量和使用麻醉药物组合的方法。

    Reducing microelectromechanical systems stiction by formation of a silicon carbide layer
    27.
    发明授权
    Reducing microelectromechanical systems stiction by formation of a silicon carbide layer 有权
    通过形成碳化硅层来减少微机电系统的粘滞

    公开(公告)号:US09108842B2

    公开(公告)日:2015-08-18

    申请号:US13946729

    申请日:2013-07-19

    IPC分类号: B81C1/00 B81B3/00

    摘要: A mechanism is provided for reducing stiction in a MEMS device by forming a near-uniform silicon carbide layer on silicon surfaces using carbon from TEOS-based silicon oxide sacrificial films used during fabrication. By using the TEOS as a source of carbon to form an antistiction coating, all silicon surfaces can be coated, including those that are difficult to coat using standard self-assembled monolayer (SAM) processes (e.g., locations beneath the proof mass). Controlled processing parameters, such as temperature, length of time for annealing, and the like, provide for a near-uniform silicon carbide coating not provided by previous processes.

    摘要翻译: 提供了一种用于通过在制造期间使用的基于TEOS的氧化硅牺牲膜的碳在硅表面上形成近均匀的碳化硅层来减少MEMS器件中的静摩擦的机构。 通过使用TEOS作为碳源来形成抗静电涂层,可以涂覆所有的硅表面,包括使用标准自组装单层(SAM)工艺(例如,证明质量下方的位置)难以涂覆的硅表面。 诸如温度,退火时间长度等受控加工参数提供了以前的方法未提供的近均匀的碳化硅涂层。

    METHOD FOR PREPARING POLYETHYLENE WITH HIGH MELT STRENGTH
    29.
    发明申请
    METHOD FOR PREPARING POLYETHYLENE WITH HIGH MELT STRENGTH 审中-公开
    用高强度强度制备聚乙烯的方法

    公开(公告)号:US20130035438A1

    公开(公告)日:2013-02-07

    申请号:US13515826

    申请日:2011-01-11

    IPC分类号: C08F8/32 C08L23/06

    摘要: The present invention is an ethylene-based polymer comprising reacting a polyethylene resin with an alkoxy amine derivative corresponding to the formula: (R1)(R2)N—O—R3 where R1 and R2 are each independently of one another, hydrogen, C4-C42 alkyl or C4-C42 aryl or substituted hydrocarbon groups comprising O and/or N, and where R1 and R2 may form a ring structure together; and where R3 is hydrogen, a hydrocarbon or a substituted hydrocarbon group comprising O and/or N. Preferred groups for R3 include —C1-C19alkyl; —C6-C10aryl; —C2-C19akenyl; —O—C1-C19alkyl; —O—C6-C10aryl; —NH—C1-C19alkyl; —NH—C6-C10aryl; —N—(C1-C19alkyl)2. R3 most preferably contains an acyl group. The resulting resin has increased melt strength with higher ratio of elongational viscosities at 0.1 to 100 rad/s when compared to substantially similar polyethylene resins which have not been reacted with an alkoxy amine derivative.

    摘要翻译: 本发明是一种乙烯类聚合物,其包括使聚乙烯树脂与对应于式(R1)(R2)N-O-R3的烷氧基胺衍生物反应,其中R1和R2各自独立地为氢,C4- C42烷基或C4-C42芳基或包含O和/或N的取代烃基,其中R1和R2可以一起形成环结构; 并且其中R 3是氢,烃或被O和/或N取代的烃基。优选的R 3基团包括-C 1 -C 19烷基; -C 6 -C 10芳基; -C 2 -C 19 -O-C 1 -C 19烷基; -O-C 6 -C 10芳基; -NH-C 1 -C 19烷基; -NH-C6-C10芳基; -N-(C 1 -C 19烷基)2。 R3最优选含有酰基。 当与未与烷氧基胺衍生物反应的基本相似的聚乙烯树脂相比时,所得树脂具有增加的熔体强度,较高的伸长粘度比为0.1-100rad / s。

    Systems and methods for canceling crosstalk from digital multi-tone (DMT) signals
    30.
    发明授权
    Systems and methods for canceling crosstalk from digital multi-tone (DMT) signals 有权
    用于消除数字多音(DMT)信号串扰的系统和方法

    公开(公告)号:US08160187B1

    公开(公告)日:2012-04-17

    申请号:US12036855

    申请日:2008-02-25

    摘要: The present disclosure generally pertains to systems and methods for cancelling crosstalk. A multiple input, multiple output (MIMO) system in accordance with one exemplary embodiment of the present disclosure has a plurality of receivers, which are capable of exchanging information with one another. Each receiver is coupled to a respective subscriber line and receives signals from a remote transmitter. In each path of the MIMO system, in domain crosstalk and possibly some combination of noise, alien crosstalk, and/or other interference such as RF interference, is canceled from the signal being processed. In some cases, a cancellation signal for cancelling crosstalk is based on an output of a symbol decision element, such as a slicer or decoder, thereby improving the accuracy of the cancellation signal.

    摘要翻译: 本公开通常涉及用于消除串扰的系统和方法。 根据本公开的一个示例性实施例的多输入多输出(MIMO)系统具有能够彼此交换信息的多个接收器。 每个接收机耦合到相应的用户线并从远程发射机接收信号。 在MIMO系统的每个路径中,在处理的信号中消除域串扰以及噪声,外来串扰和/或诸如RF干扰的其它干扰的某些组合。 在一些情况下,用于消除串扰的消除信号是基于诸如限幅器或解码器之类的符号决定单元的输出,从而提高消除信号的精度。