Oversampling type finite impulse responsive filter

Details Oversampling type finite impulse responsive filter Oversampling type finite impulse responsive filter

1993-06-24

1994-05-17

Malzahn, David H.

Boots, shoes, and leggings

G06F 1531

Patent

active

053134125

ABSTRACT:
Digital data provided in the form of a serial signal is fetched into an N-bit shift register and parallel N-bit data output therefrom is provided as address data to address input terminals of a memory. 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 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.

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Curtis A. Siller, Jr. et al., "Application of Memory-Based Digital Filtering to High-Speed Digital Radio", AT& T Technical Journal, vol. 69, No. 5, pp. 100-115, Sep. 1990, N.Y., US.
W. K. Jenkins et al., "The Use of Residue Number Systems in the Design of Finite Impulse Response Digital Filters", IEEE Transactions on Circuits and Systems, vol. CAS24, No. 4, pp. 191-201, Apr. 1977, New York, US.

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