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    • 34. 再颁专利
    • Semiconductor device and timing control circuit
    • 半导体器件和定时控制电路
    • USRE40205E1
    • 2008-04-01
    • US10226019
    • 2002-08-23
    • Seiji FunabaYoji NishioYuichi OkudaYoshinobu Nakagome
    • Seiji FunabaYoji NishioYuichi OkudaYoshinobu Nakagome
    • G11C11/4076
    • G11C7/222G11C7/1072G11C7/22G11C11/4076
    • Control on the speed of operation of a delay loop from the output of a variable delay circuit to a delay control input thereof is performed. For example, frequency-dividing circuits are respectively placed at the input and output of the variable delay circuit. A signal obtained by frequency-dividing a signal outputted from the variable delay circuit is supplied to one input of a phase comparator through a dummy delay circuit, and a signal obtained by frequency-dividing the input of the variable delay circuit is supplied to the other input of the phase comparator. Phase control is performed according to the result of comparison between the phases of both signals. Control on the speed of operation of a delay loop from the output of a variable delay circuit to a delay control input thereof is performed. For example, frequency-dividing circuits are respectively placed at the input and output of the variable delay circuit. A signal obtained by frequency-dividing a signal outputted from the variable delay circuit is supplied to one input of a phase comparator through a dummy delay circuit, and a signal obtained by frequency-dividing the input of the variable delay circuit is supplied to the other input of the phase comparator. Phase control is performed according to the result of comparison between the phases of both signals.
    • <?delete-start id =“DEL-S-00001”date =“20080401”?从可变延迟电路的输出到延迟控制输入的延迟环路的操作速度进行控制。 例如,分频电路分别置于可变延迟电路的输入和输出端。 通过对从可变延迟电路输出的信号进行分频而获得的信号通过虚拟延迟电路被提供给相位比较器的一个输入,并且通过对可变延迟电路的输入进行分频而获得的信号被提供给另一个 输入相位比较器。 根据两个信号的相位比较结果执行相位控制。<?delete-end id =“DEL-S-00001”?> <?insert-start id =“INS-S-00001”date = 执行从可变延迟电路的输出到其延迟控制输入的延迟环的操作速度的控制。 例如,分频电路分别置于可变延迟电路的输入和输出端。 通过对从可变延迟电路输出的信号进行分频而获得的信号通过虚拟延迟电路被提供给相位比较器的一个输入,并且通过对可变延迟电路的输入进行分频而获得的信号被提供给另一个 输入相位比较器。 根据两个信号的相位之间的比较结果执行相位控制。<?insert-end id =“INS-S-00001”?>
    • 38. 发明授权
    • Memory system, module and register
    • 内存系统,模块和寄存器
    • US07051225B2
    • 2006-05-23
    • US10427090
    • 2003-04-30
    • Yoji NishioKayoko ShibataSeiji Funaba
    • Yoji NishioKayoko ShibataSeiji Funaba
    • G06F1/04
    • G11C7/109G11C7/1078G11C7/1093
    • Disclosed are a memory command address system and a memory module that can be operated not only for 266 MHzCLK but also for 200 MHzCLK, in which clock timings in the input sections of a PLL, a register, and a DRAM are matched to one another, a DLL (delay locked loop) is provided in the register, the output timing of CA signal from the register is controlled so that the setup time margin and the hold time margin of the CA signal with respect to the clock signal with the additional latency in the DRAM=1.5 or 2.0 are equated to each other, such that clock operation of 266 MHz, for example, is made possible. If both 266 MHz and 200 MHz are used, by taking account of the timing budget, control is made for retarding the timing of the CA signal input to the flip-flop which receives an internal clock signal (intCLK) supplied to the flip-flop for determining the CA signal output timing from the register. Alternatively, control is made for switching between the replica (replical) provided in the register and an output unit associated with the replica, depending on the frequency being used, so as to cope with both frequencies simply by providing one sort of the module and one sort of the register.
    • 公开了一种存储器命令地址系统和存储器模块,其不仅可以用于266MHzCLK,而且可以用于200MHzCLK,其中PLL,寄存器和DRAM的输入部分中的时钟定时彼此匹配, 在寄存器中提供DLL(延迟锁定环),控制来自寄存器的CA信号的输出定时,使得CA信号的建立时间余量和保持时间裕度相对于时钟信号具有额外的等待时间 DRAM = 1.5或2.0彼此相等,使得例如266MHz的时钟操作成为可能。 如果使用266MHz和200MHz,通过考虑时序预算,进行控制以延迟输入到触发器的CA信号的定时,该触发器接收提供给触发器的内部时钟信号(intCLK) 用于确定来自寄存器的CA信号输出定时。 或者,根据所使用的频率,进行控制以在寄存器中提供的副本(复制)和与副本相关联的输出单元之间进行切换,从而简单地通过提供一种模块和一个模块来处理两个频率 排序的注册表。