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    • 92. 发明申请
    • COMMUNICATION CHANNEL CALIBRATION FOR DRIFT CONDITIONS
    • 通信通道校准条件
    • US20150229468A1
    • 2015-08-13
    • US14695597
    • 2015-04-24
    • Rambus Inc.
    • Frederick A. WareRichard E. PeregoCraig E. Hampel
    • H04L7/00
    • H04L7/0016G11C7/04G11C2207/2254H04L7/0087H04L7/0091H04L7/033H04L7/10H04L25/0292H04L25/12
    • A method and system provides for execution of calibration cycles from time to time during normal operation of the communication channel. A calibration cycle includes de-coupling the normal data source from the transmitter and supplying a calibration pattern in its place. The calibration pattern is received from the communication link using the receiver on the second component. A calibrated value of a parameter of the communication channel is determined in response to the received calibration pattern. The steps involved in calibration cycles can be reordered to account for utilization patterns of the communication channel. For bidirectional links, calibration cycles are executed which include the step of storing received calibration patterns on the second component, and retransmitting such calibration patterns back to the first component for use in adjusting parameters of the channel at first component.
    • 方法和系统提供在通信信道的正常操作期间不时地执行校准周期。 校准周期包括将来自发射机的正常数据源解耦,并在其位置提供校准模式。 使用第二组件上的接收器从通信链路接收校准模式。 响应于所接收的校准模式来确定通信信道的参数的校准值。 校准周期中涉及的步骤可以重新排序以考虑通信信道的利用模式。 对于双向链路,执行校准周期,其包括将接收到的校准模式存储在第二组件上的步骤,并将这些校准模式重新发送回第一组件,以用于调整第一组件上的通道的参数。
    • 97. 发明申请
    • RECONFIGURABLE MEMORY SYSTEM DATA STROBES
    • 可重构存储器系统数据条
    • US20150023118A1
    • 2015-01-22
    • US14509572
    • 2014-10-08
    • RAMBUS INC.
    • Ian ShaefferFrederick WareCraig E. Hampel
    • G06F3/06G11C7/22
    • G06F3/0634G06F3/0665G06F3/0689G06F13/1694G06F2212/262G11C7/22
    • In a reconfigurable data strobe-based memory system, data strobes may be re-tasked in different modes of operation. For example, in one mode of operation a differential data strobe may be used as a timing reference for a given set of data signals. In a second mode of operation, one of the components of the differential data strobe may be used as a timing reference for a first portion of the set of data signals and the other component used as a timing reference for a second portion of the set of data signals. Different data mask-related schemes also may be invoked for different modes of operation. For example, in a first mode of operation a memory controller may generate a data mask signal to prevent a portion of a set of data from being written to a memory array. Then, in a second mode of operation the memory controller may invoke a coded value replacement scheme or a data strobe transition inhibition scheme to prevent a portion of a set of data from being written to a memory array.
    • 在可重新配置的基于数据选通的存储器系统中,数据选通可以在不同的操作模式下重新安排。 例如,在一种操作模式中,差分数据选通可以用作给定的一组数据信号的定时参考。 在第二操作模式中,可以将差分数据选通的一个组件用作数据信号组的第一部分的定时参考,另一组件用作该组数据信号的第二部分的定时参考 数据信号。 也可以针对不同的操作模式调用不同的数据掩码相关方案。 例如,在第一操作模式中,存储器控制器可以生成数据掩码信号以防止一组数据被写入存储器阵列。 然后,在第二操作模式中,存储器控制器可以调用编码值替换方案或数据选通转换禁止方案,以防止一组数据被写入存储器阵列。
    • 98. 发明申请
    • METHOD AND SYSTEM FOR SYNCHRONIZING ADDRESS AND CONTROL SIGNALS IN THREADED MEMORY MODULES
    • 用于同步在线程存储器模块中的地址和控制信号的方法和系统
    • US20150019786A1
    • 2015-01-15
    • US14284473
    • 2014-05-22
    • RAMBUS INC.
    • Arun VaidyanathCraig E. Hampel
    • G06F13/16G06F12/06
    • G06F13/16G06F12/06G06F13/1689G06F2212/251G11C5/04G11C5/063G11C7/1072G11C8/18G11C29/023G11C29/025G11C29/027
    • A memory system includes a memory module which further includes a set of memory devices. The set of memory devices includes a first subset of memory devices and a second subset of memory devices. An address bus is disposed on the memory module, wherein the address bus includes a first segment coupled to the first subset and a second segment coupled to the second subset. An address signal traverses the set of memory devices in sequence. The memory system also includes a memory controller which is coupled to the memory module. The memory controller includes a first circuit to output a first control signal that controls the first subset, such that the first control signal and the address signal arrive at a memory device in the first subset at substantially the same time. The memory controller additionally includes a second circuit to output a second control signal that controls the second subset, such that the second control signal and the address signal arrive at a memory device in the second subset at substantially the same time.
    • 存储器系统包括还包括一组存储器件的存储器模块。 该组存储器件包括存储器件的第一子集和存储器件的第二子集。 地址总线设置在存储器模块上,其中地址总线包括耦合到第一子集的第一段和耦合到第二子集的第二段。 地址信号依次遍历该组存储器件。 存储器系统还包括耦合到存储器模块的存储器控​​制器。 存储器控制器包括第一电路,用于输出控制第一子集的第一控制信号,使得第一控制信号和地址信号在基本上同时到达第一子集中的存储器件。 存储器控制器还包括第二电路,用于输出控制第二子集的第二控制信号,使得第二控制信号和地址信号在基本上同时到达第二子集中的存储器件。