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    • 62. 发明授权
    • Method and apparatus for assigning processors in parallel computer system
    • 用于在并行计算机系统中分配处理器的方法和装置
    • US5485612A
    • 1996-01-16
    • US830673
    • 1992-02-04
    • Hiroshi OtaKousuke SakodaTetsuo SaitoEiichiro MaedaToshiyuki Yamamoto
    • Hiroshi OtaKousuke SakodaTetsuo SaitoEiichiro MaedaToshiyuki Yamamoto
    • G06F9/44G06F9/45G06F15/16G06F15/177G06F13/00G06F7/38
    • G06F8/456G06F8/45
    • A computer system has a plurality of processors, each having a local memory. An expression is represented by operands and operations and is expressed in a form of a tree. The operands are assigned to leaf nodes of the tree and the operations are assigned to interior nodes. Processors which store an operand represented by a leaf node are assigned to the leaf node. The tree is traced in a bottom-up fashion to determine a set of candidate processors to be assigned to each of the interior nodes. The candidate processors are determined from processors which are assigned to children nodes of each interior node in accordance with a majority method. The majority method is based on a rule that a processor which is most frequently assigned to the children nodes of an interior node is determined as a candidate processor. A root processor is assigned to a root node of the interior nodes from the candidate processors. The tree is then traced in a top-down fashion to determine definitely one processor to be assigned to each interior node from the candidate processors determined for the corresponding interior node.
    • 计算机系统具有多个处理器,每个处理器具有本地存储器。 表达式由操作数和操作表示,并以树的形式表示。 操作数分配给树的叶节点,并将操作分配给内部节点。 存储由叶节点表示的操作数的处理器被分配给叶节点。 树以自下而上的方式进行跟踪,以确定要分配给每个内部节点的一组候选处理器。 根据多数方法,从分配给每个内部节点的子节点的处理器确定候选处理器。 多数方法基于将内部节点的最常被分配给子节点的处理器确定为候选处理器的规则。 根处理器从候选处理器分配给内部节点的根节点。 然后以自顶向下的方式跟踪树,以确定从为相应的内部节点确定的候选处理器分配给每个内部节点的一个处理器。
    • 66. 发明授权
    • Marine radar transmission and reception system
    • 海事雷达传输和接收系统
    • US4008472A
    • 1977-02-15
    • US551917
    • 1975-02-21
    • Tomiji NirasawaHiroshi Ota
    • Tomiji NirasawaHiroshi Ota
    • G01S7/02G01S7/292G01S13/10G01S7/28
    • G01S13/106G01S7/025G01S7/2921
    • A marine radar transmission and reception system in which first and second transmission pulse radar waves are emitted as first and second pulse radar waves from first and second radar antennae or a common radar antenna; reflected waves of the first and second emitted pulse radar waves are received as first and second received pulse radar waves by the first and second radar antennae or the common radar antenna; the modes of the first and second transmission pulse radar waves are selected in cooperation with those of the first and second radar antennae or that of the common radar antenna so that the first and second received pulse radar waves may be received by the first and second radar antennae or the common radar antenna independently of each other; a quotient or difference output corresponding to the quotient or difference of the first and second received pulse radar waves or the first and second received outputs based thereon is obtained; and sea clutter eliminated received pulse radar waves or outputs based thereon that signal components of the period--in which the quotient or difference output exceeds one predetermined threshold value or lies between two threshold values--are eliminated or suppressed, are obtained.
    • 一种船用雷达发射和接收系统,其中发射第一和第二传输脉冲雷达波作为来自第一和第二雷达天线或公共雷达天线的第一和第二脉冲雷达波; 第一和第二发射脉冲雷达波的反射波由第一和第二雷达天线或公共雷达天线作为第一和第二接收脉冲雷达波被接收; 与第一和第二雷达天线或公共雷达天线的模式一起选择第一和第二传输脉冲雷达波的模式,使得第一和第二接收脉冲雷达波可以被第一和第二雷达接收 天线或公共雷达天线彼此独立; 获得对应于基于第一和第二接收脉冲雷达波或第一和第二接收输出的商或差的商或差输出; 并且海杂波消除接收到的脉冲雷达波或输出,消除或抑制商差或输出超过一个预定阈值或位于两个阈值之间的周期的信号分量。