Distributed arithmetic oversampling recursive digital filter

Details Distributed arithmetic oversampling recursive digital filter Distributed arithmetic oversampling recursive digital filter

1981-08-17

1985-06-04

Malzahn, David H.

Boots, shoes, and leggings

G06F 1531

Patent

active

045218668

ABSTRACT:
Distributed arithmetic oversampling recursive digital filter comprising a recursive part constituted by q registers of a circulating nature, a non-recursive part of order p constituted by series registers, a memory divided into N memory blocks, a modulo N counter with .alpha. outputs, an adder--subtracter connected to the memory, an accumulator register, and a frequency clock f.sub.s. The filter is characterized in that the non-recursive part only comprises K series registers, K being an integer defined by the double inequality:

REFERENCES:
patent: 3777130 (1973-12-01), Croisier et al.
patent: 3988607 (1976-10-01), Eggermont et al.
patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4146931 (1979-03-01), DelForge
patent: 4337518 (1982-06-01), Ohnishi et al.
Goodman et al., "Nine Digital Filters for Decimation and Interpolation," IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. ASSP-25, No. 2, Apr. 1977, pp. 121-126.

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