Patent
Sample rate conversion module and applications thereof
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TLDR
In this article, a linear sample rate conversion (LSRC) module is proposed to convert the digitally up-sampled signal into a sample rate adjusted digital signal having a second rate based on an control feedback signal and a linear function, wherein a relationship between the first rate and the second rate is a non-power of two.Abstract:
A sample rate converter includes an upsampling module, a low pass filter, and a linear sample rate conversion module. The upsampling module is operably coupled up-sample a digital input signal having a first rate to produce a digitally up-sampled signal. The low pass filter is operably coupled to low pass filter the digitally up-sampled signal to produce a digitally filtered signal at an up-sampled rate. The linear sample rate conversion module is operably coupled to convert the digitally up-sampled signal into a sample rate adjusted digital signal having a second rate based on an control feedback signal and a linear function, wherein a relationship between the first rate and the second rate is a non-power of two.read more
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References
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Book
Digital Signal Processing: A Practical Approach
TL;DR: This book covers a number of DSP techniques that are of particular relevance to industry such as adaptive filtering and multirate processing, and offers modern coverage of the fundamentals, implementation and applications of digital signal processing techniques from a practical point of view.
Patent
Asynchronous sample rate converter
TL;DR: In this article, an asynchronous sample rate converter for converting a first sample rate in a signal to a second sample rate of the same signal is presented, where the signal is first provided as input to an interpolator which upsamples the signal to form a signal having sample rate UFs1 where the upsampling factor U is a variable that is directly related to the ratio Fs2/Fs1.
Patent
Sample rate converter
TL;DR: In this article, a single-stage, low-pass filter is used to eliminate high frequency noise introduced as a result of interpolation, and the filter is configured so as to provide the best conversion results for a plurality of critical input/output sample rate conversion pairs, which are used to define the filter cutoff frequency.
Journal ArticleDOI
A 10.7 MHz IF-to-baseband /spl Sigma//spl Delta/ A/D conversion system for AM/FM radio receivers
TL;DR: In this paper, the authors presented a block diagram of a highly-integrated AM/FM radio receiver using a single CMOS IC for 10.7 MHz intermediate frequency (IF) using integrated quadrature mixing and /spl Sigma/spl Delta modulation.
Patent
Digital-to-digital conversion using non-uniform sample rates
TL;DR: In this paper, a method and apparatus for digital-to-digital conversion using sigma-delta modulation of the temporal spacing between digital samples is presented, where the digital data is interpolated by fixed ratio and then decimated under control of a sigmdelta modulated frequency selection signal that represents, on average, the data rate of the incoming digital data stream.