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45 条记录 (耗时 0.023 秒)

    Radio transmitter and envelope tracking power supply control method
    21.
    发明授权
    Radio transmitter and envelope tracking power supply control method 失效
    无线电发射机和信封跟踪电源控制方法

    公开(公告)号：US08600321B2

    公开(公告)日：2013-12-03

    申请号：US13477108

    申请日：2012-05-22

    申请人： Hiroi Nambu ,  Masami Ohnishi

    发明人： Hiroi Nambu ,  Masami Ohnishi

    IPC分类号： H01Q11/12 ,  H04B1/04

    CPC分类号： H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B2001/0441

    摘要： The envelope tracking power supply includes a plurality of variable voltage supplies. A power supply controller of a power amplifier controls the plurality of variable voltage supplies so as to precisely divide the power supply voltage in a high frequency area, based on the voltage distribution of a received transmitted base band signal, in order to maximize the power added efficiency of the power amplifier. The power supply controller includes a threshold memory including a plurality of first zones, and a frequency memory including a plurality of second zones. The power supply controller changes the threshold held in the first zones so that each second zone approaches the average of the second zones.

    摘要翻译： 包络跟踪电源包括多个可变电压源。 功率放大器的电源控制器控制多个可变电压源，以便基于所接收的发送的基带信号的电压分布来精确地划分高频区域中的电源电压，以便最大限度地增加功率 功率放大器的效率。 电源控制器包括包括多个第一区域的阈值存储器和包括多个第二区域的频率存储器。 电源控制器改变保持在第一区域中的阈值，使得每个第二区域接近第二区域的平均值。

    Method of polymerizing vinyl chloride
    28.
    发明授权
    Method of polymerizing vinyl chloride 失效
    聚合氯乙烯的方法

    公开(公告)号：US3959235A

    公开(公告)日：1976-05-25

    申请号：US596855

    申请日：1975-07-17

    申请人： Masahiko Nishigaki ,  Masami Ohnishi ,  Yosuke Ichikawa ,  Kazuhiko Katayama

    发明人： Masahiko Nishigaki ,  Masami Ohnishi ,  Yosuke Ichikawa ,  Kazuhiko Katayama

    IPC分类号： C08F14/00 ,  C08F2/00 ,  C08F2/18 ,  C08F2/22

    CPC分类号： C08F2/004

    摘要： Vinyl chloride monomer, or a monomeric mixture comprising vinyl chloride as a main component and other monomers co-polymerizable therewith in an aqueous reaction medium, is polymerized in a polymerization vessel. All of the surfaces of the inside walls of the vessel and the agitator blades, the baffle plates and the like with which the vessel is equipped, are coated prior to the polymerization with at least one of a specific class of nitrogen-containing aromatic heterocyclic compounds. Not only is the deposition of polymer scale surprisingly reduced, but also the polymer thus obtained has good physical and chemical properties.

    摘要翻译： 在聚合反应容器中聚合氯乙烯单体或以氯乙烯为主要成分的单体混合物和与其共聚的其它单体。 容器内壁的所有表面以及装有容器的搅拌器叶片，挡板等在聚合之前用至少一种特定类型的含氮芳族杂环化合物 。 聚合物垢的沉积不仅令人惊奇地减少，而且由此获得的聚合物也具有良好的物理和化学性质。