Rate change filter and method

Details Rate change filter and method Rate change filter and method

1995-05-15

1998-02-10

Mai, Tan V.

Boots, shoes, and leggings

G06F 1717

Patent

active

057176175

ABSTRACT:
A digital rate change filter with multiple stages and including sampling rate compression and following offsetting expansion about a lowpass filter. Phantom decimation and interpolation rates are used as approximates to actual rates, the phantom rates allow near optimal factoring into rates for two-stage filters, and linkage of these factors to actual rates are efficiently made.

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Crochiere et al, "Optimum FIR Digital Filter Implementations for Decimation, Interpolation, and Narrow-Band Filtering", IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-23, No. 5, Oct. 1975, pp. 444-456.

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