Process and apparatus for translating the sampling rate of a sam

Details Process and apparatus for translating the sampling rate of a sam Process and apparatus for translating the sampling rate of a sam

1984-11-26

1988-05-31

Malzahn, David H.

Boots, shoes, and leggings

G06F 1531

Patent

active

047485787

ABSTRACT:
An input sampling sequence with an input sampling rate is translated into an output sampling sequence with a selectable output sampling rate in a sampling filter. A circuit for forming the time difference of the sampling points forms from the given input sampling rate and the desired output sampling rate a signal corresponding to the time difference and this is used in a translation circuit for converting into data for characterizing the filter coefficients. The sampling filter is conditioned by the selected coefficients from the translation circuit. The invention is suitable for the transmission of sampled data, particularly sampled rates between two systems operating at different clock frequencies.

REFERENCES:
patent: 3829670 (1974-08-01), Kebabian
patent: 3997773 (1976-12-01), Van Essen et al.
patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4270026 (1981-05-01), Shenoi et al.
patent: 4460890 (1984-07-01), Busby
patent: 4472785 (1984-09-01), Kasuga
patent: 4584659 (1986-04-01), Stikvoort
patent: 4604720 (1986-08-01), Stikvoort
Wong et al., "Commutatively & Application of Digital Interpolation Filters & Modulators", IEEE Trans. on Communications, vol. com. 28, No. 2, Feb. 1980, pp. 244-249.
Crochiere, "Further Considerations in the Design of Decimators and Interpolators", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. Assp-24, No. 4, Aug. 1976, pp. 296-311.

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