Universal sampling rate converter in electronic devices and...

Details Universal sampling rate converter in electronic devices and... Universal sampling rate converter in electronic devices and...

2007-12-25

2007-12-25

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Data rate conversion

Reexamination Certificate

active

10919819

ABSTRACT:
A method and apparatus for converting the sampling rate of digital signals including a decimating comprising a low pass filter (122) and a downsampler (124), wherein the input signal is decimated a number of times based on a ratio of an input sampling rate to an output sampling rate. The exemplary apparatus also includes an upsampler (130) and another decimator (140) wherein the signal is upsampled after decimating if a ratio of the input sampling rate to an output sampling rate is not a power of an integer number.

REFERENCES:
patent: 6327311 (2001-12-01), Ojard
patent: 6384759 (2002-05-01), Snyder
patent: 7167112 (2007-01-01), Andersen et al.
Julius O. Smith III, Center for Computer Research in Music and Acoustics (CCRMA), Stanford University, “The Digital Audio Resampling Home Page”, http://ccrma-www.stanford.edu/˜jos/resample/Abstract.html, Apr. 13, 2004, 30 pages.

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