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    • 7. 发明申请
    • Minimal area integrated circuit implementation of a polyphase interpolation filter using coefficients symmetry
    • 使用系数对称的多相插值滤波器的最小面积集成电路实现
    • US20060120494A1
    • 2006-06-08
    • US11215319
    • 2005-08-29
    • Aditya BhuvanagiriHarvinder SinghRakesh MalikNitin Chawla
    • Aditya BhuvanagiriHarvinder SinghRakesh MalikNitin Chawla
    • H04B1/10
    • H03H17/0275H03H17/0657
    • A minimal area integrated polyphase interpolation filter uses a symmetry of coefficients for a channel of input data. The filter includes an input interface block for synchronizing the input signal to a first internal clock signal; a memory block for providing multiple delayed output signals; a multiplexer input interface block for outputting a selected plurality of signals for generating mirror image coefficient sets in response to a second set of internal control signals, a coefficient block for generating mirror image and/or symmetric coefficient sets, and to output a plurality of filtered signals, an output multiplexer block for performing selection, gain control and data width control on said plurality of filtered signals, an output register block synchronizing the filtered signals, and a control block generating clock signals for realization of the filter and to delay between two channels to access a coefficient set, thereby minimizing hardware in the filter.
    • 最小面积集成多相插值滤波器使用输入数据通道的系数对称性。 滤波器包括用于使输入信号与第一内部时钟信号同步的输入接口块; 用于提供多个延迟输出信号的存储块; 多路复用器输入接口块,用于响应于第二组内部控制信号输出用于产生镜像系数组的所选择的多个信号,用于产生镜像和/或对称系数集的系数块,以及输出多个滤波器 信号,用于对所述多个滤波信号执行选择,增益控制和数据宽度控制的输出多路复用器块,同步滤波后的信号的输出寄存器块以及用于实现滤波器并在两个通道之间延迟的控制块 以访问系数集合,从而最小化过滤器中的硬件。