Digital filter.
申请公布号:EP0492578(A2)
申请号:EP19910122113
申请日期:1991.12.23
申请公布日期:1992.07.01
发明人:NUKUI, YOSHIHIRO
分类号:H03H21/00;H03H17/00;H03H17/06
主分类号:H03H21/00
摘要:<p>Digital data provided in the form of a serial signal (S(i)) is fetched into an N-bit shift register (11) and parallel N-bit data output therefrom is provided as address data to address input terminals of a memory (21). In the memory there are prestored at respective addresses defined by the N-bit data the total sum value of multiplied outputs obtained by multiplying the address values and the bit data of a coefficient h(n-i) defining an impulse response characteristic. The N-bit data is provided to an address input terminal (A0-An-1) of the memory to read out therefrom a digital value corresponding to the output voltage of a digital filter. The digital value is D/A converted to obtain the output voltage of the digital filter. <IMAGE></p>
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