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    • 3. 发明申请
    • Memory system, module and register
    • 内存系统,模块和寄存器
    • US20030221044A1
    • 2003-11-27
    • US10427090
    • 2003-04-30
    • Elpida Memory, Inc.
    • Yoji NishioKayoko ShibataSeiji Funaba
    • H04L005/00
    • 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 DRAMnull1.5 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 (replica 1) 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,用于在寄存器中提供的副本(副本1)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 一种登记册。
    • 4. 发明申请
    • Multiple dataport clock synchronization
    • 多个数据端口时钟同步
    • US20030093703A1
    • 2003-05-15
    • US10007775
    • 2001-11-09
    • ADC DSL Systems, Inc.
    • Jeffrey OliverCraig Evensen
    • G06F013/42H04L007/00H04L005/00G06F001/12
    • H04J3/0688H04J3/0691H04L27/2662
    • A communications device apparatus and method is detailed that allows for improved operation and reduced costs of network communication links and datastreams with an improved ability to merge and synchronize multiple WAN and LAN dataport datastreams. The improved communications device apparatus and method allows for a master data clock selection, a clock recovery, a derivate data clock division and a dataport data clock selection that allows for the generation of one or more synchronous derivative data clocks and the merging of multiple dataport datastreams for data transceiving. The improved communications device apparatus and method also allows for a master data clock to be recovered from a selected dataport and the other differing data rate dataports to be synchronized to it for the merging of multiple dataport datastreams for data transceiving.
    • 详细描述了一种通信设备装置和方法,其允许改进的操作和降低网络通信链路和数据流的成本,具有改进的能够合并和同步多个WAN和LAN数据端口数据流的能力。 改进的通信设备装置和方法允许主数据时钟选择,时钟恢复,导出数据时钟分割和数据端口数据时钟选择,其允许生成一个或多个同步导数数据时钟并且合并多个数据端口数据流 用于数据收发。 改进的通信设备装置和方法还允许从选定的数据端口恢复主数据时钟,并且允许与其同步的其他不同的数据速率数据端口用于合并用于数据收发的多个数据端口数据流。