Method and apparatus for converting sampling frequencies

Details Method and apparatus for converting sampling frequencies Method and apparatus for converting sampling frequencies

1988-12-23

1990-08-28

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 1531

Patent

active

049531174

ABSTRACT:
A sampling frequency converter converts sampled input data having an input sampling frequency into sampled output data having a different output sampling frequency. The relative ratio between input data sample periods and output data sample periods is determined and averaged over a predetermined duration. A filter coefficient generator responds to the averaged input/output sampling period ratio for generating data representing a set of predetermined filter coefficients which are used by a sampling filter circuit to convert the input data samples into output data samples of a different sampling frequency.

REFERENCES:
patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4460890 (1984-07-01), Busby
patent: 4472785 (1984-09-01), Kasuga

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