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    • 3. 发明公开
    • Address-enabling system and method for memory modules
    • Adressaktivierungsanordnung und VerfahrenfürSpeichermodule。
    • EP0462786A2
    • 1991-12-27
    • EP91305482.1
    • 1991-06-18
    • DELL USA L.P.
    • Durkin, Michael D.Stewart, Greg. N.Holman, Thomas H. Jr.
    • G06F12/06
    • G06F12/0684Y02D10/13
    • A memory circuit for use in a data processing system which is acccessed by address signals and includes interconnection means for at least one memory module, which at least one memory module may or may not be present, and means for transmitting the address signals to the interconnection means if and only if the at least one memory module is present. One embodiment of the present invention includes a line interconnecting the output enable pin of an address buffer to a SIMM socket location which interconnects with a grounded PRES pin on a SIMM when it is installed in the socket. The line to the address buffer enable pin includes a pull-up resistor portion so that the address buffer is disabled unless a SIMM is connected to the socket.
    • 一种在数据处理系统中使用的存储器电路,其由地址信号处理,并且包括用于至少一个存储器模块的至少一个存储器模块的互连装置,所述至少一个存储器模块可以存在或可以不存在,以及用于将地址信号发送到互连 意味着当且仅当存在至少一个存储器模块时。 本发明的一个实施例包括将地址缓冲器的输出使能引脚互连到SIMM插座位置的线路,该SIMM插座位置在SIMM安装在插座中时与SIMM上的接地PRES引脚相互连接。 地址缓冲器使能引脚的行包括一个上拉电阻部分,以便禁止地址缓冲区,除非SIMM连接到插槽。
    • 9. 发明公开
    • A digital computer having a system for sequentially refreshing an expandable dynamic RAM memory circuit
    • 具有用于顺序刷新的可膨胀动态RAM存储器电路的系统的数字计算机。
    • EP0465050A1
    • 1992-01-08
    • EP91305568.7
    • 1991-06-19
    • DELL USA L.P.
    • Matteson, Keith D.Longwell, Michael L.Parks, Terry J.
    • G11C11/406
    • G11C11/406
    • A digital computer which includes a memory refresh system for controlling the generation and sequencing of refresh signals to a memory subsystem comprised of at least one memory unit (8a,b) having a plurality of slots each capable of receiving a dynamic random access memory bank therein. The memory refresh system includes means for generating refresh signals (22) and at least one independent refresh sequence controller 34a,b for efficiently controlling the sequence in which the memory banks associated with a particular refresh sequence controller (34a,b) receive refresh signals. Each refresh sequence controller controls a combination of multi-stage shift registers for issuing refresh signals to memory banks installed on the corresponding memory unit and multi-stage shift registers for providing wait cycles during which refresh signals are being generated by other independent refresh sequence controllers. The order of refresh signals generated by each refresh sequence controller varies depending on the configuration of the memory subsystem.
    • 其中包括用于控制刷新信号的产生和测序,以包括至少一个存储器单元的存储器子系统的存储器刷新系统的数字计算机(8A,8B),其具有槽,每个槽能够在其中接纳一个动态随机存取存储器组中的多元 , 存储器刷新系统包括装置,用于产生刷新信号(22)和至少一个独立刷新序列控制器34a,b表示有效地控制,其中,具有特定的刷新序列控制器相关联的存储器组(34A,B)接收刷新信号序列。 每个刷新序列控制器控制用于发出刷新信号到安装在对应的存储器单元上存储体和多级移位寄存器,用于提供等待周期哪个期间刷新被其他独立刷新序列控制器产生的信号的多级移位寄存器的组合。 由每个刷新序列控制器产生刷新信号的顺序取决于存储器子系统的配置。