RECONFIGURABLE MIXED-SIGNAL VLSI IMPLEMENTATION OF DISTRIBUTED ARITHMETIC
    1.
    发明申请
    RECONFIGURABLE MIXED-SIGNAL VLSI IMPLEMENTATION OF DISTRIBUTED ARITHMETIC 有权
    可重构混合信号VLSI分布式算法的实现

    公开(公告)号:US20070040712A1

    公开(公告)日:2007-02-22

    申请号:US11465192

    申请日:2006-08-17

    IPC分类号: H03M7/34

    CPC分类号: H03M1/662

    摘要: Disclosed herein is a reconfigurable mixed signal distributed arithmetic system including: an array of tunable voltage references operable for receiving a delayed digital input signal; a combination device in electrical communication with the array of tunable floating-gate voltage references that selectively combines an output of the array of tunable voltage references into an analog output signal; and a feedback element in electrical communication with the combination device, wherein the array of tunable voltages and the delayed digital input signal combine to perform a distributed arithmetic function and the reconfigurable mixed signal distributed arithmetic system responsively generates the analog output signal.

    摘要翻译: 这里公开了一种可重新配置的混合信号分布式运算系统,包括:可调谐电压基准阵列,可操作用于接收延迟的数字输入信号; 与可调谐浮栅电压基准阵列电连通的组合装置,其选择性地将可调电压基准阵列的输出组合成模拟输出信号; 以及与所述组合装置电通信的反馈元件,其中所述可调谐电压阵列和所述延迟数字输入信号组合以执行分布式算术功能,并且所述可重构混合信号分布式运算系统响应地产生所述模拟输出信号。

    Distributed arithmetic adaptive filter and method
    2.
    发明申请
    Distributed arithmetic adaptive filter and method 审中-公开
    分布式算术自适应滤波器和方法

    公开(公告)号:US20050201457A1

    公开(公告)日:2005-09-15

    申请号:US11076741

    申请日:2005-03-10

    IPC分类号: H03K5/159

    CPC分类号: H03H21/0012

    摘要: Systems and methods for very high throughput adaptive filtering using distributed arithmetic are disclosed. One distributed arithmetic adaptive filter may include a memory for storing a first and second lookup table. The first lookup table may include 2K filter weights addressed by the rightmost bits of each of K signal samples stored in a plurality of registers. The filter may include a controller configured to update the second lookup table with each possible combination of the sums of the K most recent input samples and update each of the 2K filter weights of the first lookup table based on the combination of the sums of the K most recent input samples stored in the second lookup table. The second lookup-table may be updated during a filtering operation that uses the first lookup-table. One filter may include a plurality of sub-filters with each sub-filter having first and second lookup tables.

    摘要翻译: 公开了使用分布式算术进行非常高吞吐量自适应滤波的系统和方法。 一个分布式算术自适应滤波器可以包括用于存储第一和第二查找表的存储器。 第一查找表可以包括由存储在多个寄存器中的K个信号样本中的每一个的最右边比特寻址的2K个滤波器权重。 滤波器可以包括控制器,其被配置为利用K个最新输入样本的和的每个可能的组合来更新第二查找表,并且基于以下来更新第一查找表的两个滤波器权重中的每一个: 存储在第二查找表中的K个最新输入样本的总和的组合。 可以在使用第一查找表的过滤操作期间更新第二查找表。 一个滤波器可以包括多个子滤波器,每个子滤波器具有第一和第二查找表。