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    • 24. 发明授权
    • System and method for refreshing a DRAM device
    • 用于刷新DRAM设备的系统和方法
    • US08116161B2
    • 2012-02-14
    • US11872675
    • 2007-10-15
    • Lee-Lean ShuStephen Lee
    • Lee-Lean ShuStephen Lee
    • G11C7/00
    • G11C11/406G11C11/40603G11C11/40611
    • The present invention provides a system and method for refreshing a DRAM device without interrupting or inhibiting read and write operations of the DRAM device. The system may includes refresh control circuitry that selectively generates requests to perform refresh operations and a refresh address counter that is coupled to the refresh control circuitry and that generates a refresh address in response to receiving a refresh request. The refresh address corresponds to a word line of the DRAM array to be refreshed. Address control and switching circuitry may be coupled to the refresh control circuitry. The address control and switching circuitry selectively transmits read/write addresses and refresh addresses to the DRAM array, in order to perform refresh operations on the DRAM array without inhibiting read and write operations.
    • 本发明提供了一种用于刷新DRAM器件而不中断或禁止DRAM器件的读和写操作的系统和方法。 系统可以包括选择性地产生执行刷新操作的请求的刷新控制电路和耦合到刷新控制电路的刷新地址计数器,并且响应于接收到刷新请求而产生刷新地址。 刷新地址对应于要刷新的DRAM阵列的字线。 地址控制和切换电路可以耦合到刷新控制电路。 地址控制和切换电路选择性地将读/写地址和刷新地址发送到DRAM阵列,以便对DRAM阵列执行刷新操作,而不会妨碍读和写操作。
    • 27. 发明授权
    • Elongated stopper device
    • 延长止动装置
    • US07597221B2
    • 2009-10-06
    • US11570738
    • 2005-06-23
    • Stephen Lee
    • Stephen Lee
    • B22D41/18
    • B22D41/18B22D41/186
    • An enlongated stopper device for flow-control of molten metal from a vessel, containing molten metal, said device comprising: a) a body (10) made of a refractory ceramic material, b) a bore hole (12), having a longitudinal axis (A) and extending from an upper surface (10u) of said body downwardly, c) a rod (14), penetrating with one end (14l) into said bore hole (12) and being fixedly secured within said body (10), d) a sealing member (18), being arranged within a space adjacent to or being part of said bore hole (12), said space being defined at least partly by unlike surface sections (12a, 12i, 14s) of said rod (14) and said body (10) respectively.
    • 一种用于从包含熔融金属的容器流动控制熔融金属的延长的止动装置,所述装置包括:a)由难熔陶瓷材料制成的主体(10),b)具有纵向轴线的钻孔(12) (A)并且从所述主体的上表面(10u)向下延伸,c)杆(14),其一端穿过所述钻孔(12)并牢固地固定在所述主体(10)内, d)密封构件(18),其布置在与所述钻孔(12)相邻或者是所述钻孔(12)的一部分的空间内,所述空间至少部分地由所述杆(14)的不同表面部分(12a,12i,14s)限定 )和所述主体(10)。