Coefficient reduction in a low ratio sampling rate converter

Details Coefficient reduction in a low ratio sampling rate converter Coefficient reduction in a low ratio sampling rate converter

1990-08-20

1991-06-11

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 1531

Patent

active

050238256

ABSTRACT:
A technique for reducing the number of coefficients in a low ratio sampling rate converter divides each input sampling rate interval into a plurality of bins. For each bin a set of conversion coefficients is computed. So long as output data samples lie within the same bin, the same set of coefficients is applied. When the output data samples move to another bin, the set of coefficients applied is changed. Thus a finite set of coefficients are computed rather than computing an exact set for each output data sample.

REFERENCES:
patent: 3997773 (1976-12-01), Van Essen et al.
patent: 4472785 (1984-09-01), Kasuga
patent: 4584659 (1986-04-01), Stikvoort
patent: 4837619 (1989-06-01), Tsinberg
patent: 4866647 (1989-09-01), Farrow
patent: 4881191 (1989-11-01), Morton
Digital Methods for Conversion Between Arbitrary Sampling Frequencies (Tor A. Ramstad) IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. 32, No. 3, Jun. 1984, pp. 557-591.

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