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Direct digital to digital sampling rate conversion method and apparatus

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TLDR
A direct digital-to-digital rate conversion apparatus and method for converting an input signal at first sampling rate to an output signal at a second sampling rate was described in this paper.
Abstract
A direct digital-to-digital rate conversion apparatus and method for converting an input signal at a first sampling rate to an output signal at a second sampling rate, said apparatus has a rate multiplier means 14 to increase the frequency of the input signal. The multiplied signals from the rate multiplied means are interpolated 16 using a nth order n-polynomial interpolator to produce the output signal.

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Citations
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TL;DR: In this article, an asynchronous digital sample rate converter includes a random access memory for storing input data values and a read only memory to store a reduced set of interpolation filter coefficients, and an auto-centering scheme which is a first order closed loop system with a digital integrator fed by an approximation of the input to output sample rate ratio.
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Process and apparatus for translating the sampling rate of a sampling sequence

TL;DR: In this article, a sampling filter is conditioned by the selected coefficients from the translation circuit, which is suitable for the transmission of sampled data, particularly sampled rates between two systems operating at different clock frequencies.
References
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Transverse digital filter

TL;DR: In this paper, a digital transversal filter converts an input analog signal into a plurality of digital components which are transferred into a storage device and then sequentially multiplied by predetermined coefficients stored in a circulating memory.