State retention within a data processing system

    公开(公告)号:US20050218952A1

    公开(公告)日:2005-10-06

    申请号:US10818861

    申请日:2004-04-06

    IPC分类号: G11C5/14 G11C11/00

    CPC分类号: G11C5/147

    摘要: Power consumption may be reduced through the use of power gating in which power is removed from circuit blocks or portions of circuit blocks in order to reduce leakage current. One embodiment uses a modified state retention flip-flop capable of retaining state when power is removed or partially removed from the circuit. Another embodiment uses a modified state retention buffer capable of retaining state when power is removed or partially removed from the circuit. The state retention flip-flop and buffer may be used to allow for state retention while still reducing leakage current. Also disclosed are various methods of reducing power and retaining state using, for example, the state retention flip-flops and buffers. For example, software, hardware, or a combination of software and hardware methods may be used to enter a deep sleep or idle mode while retaining state.

    Scheduling packet flows in multi-rate wireless local area networks
    72.
    发明申请
    Scheduling packet flows in multi-rate wireless local area networks 失效
    在多速率无线局域网中调度数据包流

    公开(公告)号:US20050180444A1

    公开(公告)日:2005-08-18

    申请号:US10780357

    申请日:2004-02-17

    IPC分类号: H04B7/26 H04L12/28 H04L12/56

    摘要: A system and method schedule series of packets for transmission between terminals in a single wireless channel of a packet-switched local area network. The local area network can operate in an ad hoc mode or in infrastructure mode. A transmission rate is assigned to each of the terminals. The terminals can be mobile. Different terminals can be assigned different transmission rates, depending on a quality of the channel. That is, terminals transmitting via an error-free channel are assigned a higher transmission rate than terminals transmitting via an error-prone channel. Then, the series of packets are scheduled for transmission between the terminals such that each terminal receives a substantially equal amount of transmission time over an extended period of time.

    摘要翻译: 一种用于在分组交换局域网的单个无线信道中的终端之间传输的分组的系统和方法计划。 局域网可以以自组织模式或基础架构模式运行。 对每个终端分配传输速率。 终端可以移动。 根据通道的质量,不同的终端可以分配不同的传输速率。 也就是说,经由无差错信道发送的终端被分配比通过容易出错的信道发送的终端更高的传输速率。 然后,一系列分组被调度用于在终端之间进行传输,使得每个终端在延长的时间段内接收大致相等量的传输时间。