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    • 1. 发明授权
    • 선택가능한데시메이션비율을갖는데시메이션필터
    • KR100377501B1
    • 2003-05-23
    • KR1019950017018
    • 1995-06-23
    • 제너럴 일렉트릭 캄파니
    • 다니엘아서스타버도널드토마스맥그라스
    • H03M7/32
    • H03H17/0664
    • A decimation filter for filtering an externally derived stream of quantized electrical signals having a predetermined rate includes a coefficient generator responsive to a set of externally derived decimation-ratio select signals to provide a separate normalized coefficient signal at each respective one of a plurality of output ports. An accumulator is coupled to the coefficient generator to receive each normalized coefficient signal generated therein. The accumulator receives the stream of quantized electrical signals so as to produce, upon masking with respective ones of the received normalized coefficient signals, a plurality of accumulator output signals. An overflow detector is coupled to the accumulator to detect and correct any overflow condition arising in the accumulator.
    • 用于对具有预定速率的量化电信号的外部导出流进行滤波的抽取滤波器包括响应于一组外部导出的抽取比选择信号的系数发生器,以在多个输出端口中的每一个相应的输出端口处提供单独的归一化系数信号 。 累加器耦合到系数发生器以接收其中产生的每个归一化系数信号。 累加器接收量化的电信号流,以便在用相应的接收到的归一化系数信号进行掩蔽时产生多个累加器输出信号。 溢出检测器连接到累加器,以检测和纠正累加器中出现的任何溢出情况。