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    Sample rate converter with rational numerator or denominator
    2.
    发明公开
    Sample rate converter with rational numerator or denominator 有权
    采样率转换器，具有理性的分子或分母

    公开(公告)号：EP2157695A3

    公开(公告)日：2010-06-23

    申请号：EP09178964.4

    申请日：2003-07-10

    申请人： MediaTek, Inc

    发明人： Kelly, Anthony ,  Gealow, Jeffrey

    IPC分类号： H03H17/06

    CPC分类号： H03H17/0671

    摘要： An interpolating sample rate converter that provides rate conversion by a factor of M/N comprising: an upsampler that upsamples an input data stream by a factor of M; a filter that shapes the upsampled data stream in accordance with a predetermined power spectrum; and a downsampler that downsamples the upsampled and shaped signal by a factor of N to produce an output data stream; wherein the upsampler and filter are implemented, at least in part, by a cascaded integrator-comb filter; and wherein the upsampling factor M is a natural number and the downsampling factor N is a rational number but not necessarily a natural number.

    Sample rate converter with rational numerator or denominator
    4.
    发明公开
    Sample rate converter with rational numerator or denominator 有权
    具有合理分子或分母的采样率转换器

    公开(公告)号：EP2157695A2

    公开(公告)日：2010-02-24

    申请号：EP09178964.4

    申请日：2003-07-10

    申请人： MediaTek, Inc

    发明人： Kelly, Anthony ,  Gealow, Jeffrey

    IPC分类号： H03H17/06

    CPC分类号： H03H17/0671

    摘要： An interpolating sample rate converter that provides rate conversion by a factor of M/N comprising: an upsampler that upsamples an input data stream by a factor of M; a filter that shapes the upsampled data stream in accordance with a predetermined power spectrum; and a downsampler that downsamples the upsampled and shaped signal by a factor of N to produce an output data stream; wherein the upsampler and filter are implemented, at least in part, by a cascaded integrator-comb filter; and wherein the upsampling factor M is a natural number and the downsampling factor N is a rational number but not necessarily a natural number.

    摘要翻译： 内插采样率转换器，其以M / N的系数提供率转换，包括：上采样器，其将输入数据流上采样M倍; 滤波器，其根据预定功率谱来对上采样数据流进行整形; 以及下采样器，其将上采样和整形的信号下采样N倍以产生输出数据流; 其中所述上采样器和滤波器至少部分地通过级联积分梳状滤波器来实现; 并且其中上采样因子M是自然数并且下采样因子N是有理数但不一定是自然数。