Method and device for converting the sampling frequency of a...

Details Method and device for converting the sampling frequency of a... Method and device for converting the sampling frequency of a...

2007-08-21

2007-08-21

Nguyen, Khai M. (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Data rate conversion

C708S313000

Reexamination Certificate

active

11439108

ABSTRACT:
The invention relates to a method of converting sampling conversion with a predetermined ratio between an input frequency (Fsin) and an output frequency (Fsout). It comprises an initialization phase (40-44) of selective configuration, according to the conversion ratio, of an under-sampling filter and a band-pass filter, and a real time phase comprising the stages of selective over-sampling (45), over-sampling by a factor of two and selective band-pass filtering (46), over-sampling by a factor of sixty four (47) and polynomial interpolation of the quadratic “B-Spline” type (48).The invention also relates to a device (4) for implementation of the method.

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Gockler, H. G., et al., “Minimal block processing approach to fractional sample rate conversion”, Signal Processing, Amsterdam, NL, vol. 81, No. 4, (Apr. 2001), pp. 673-691.

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