Method and arrangement for sample-rate conversion

Details Method and arrangement for sample-rate conversion Method and arrangement for sample-rate conversion

2006-12-19

2006-12-19

Ngo, Chuong D. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S300000, C341S061000

Reexamination Certificate

active

07152086

ABSTRACT:
Method and arrangement for converting the sample rate of a higher sample rate discrete time signal to a lower sample rate discrete time signal or vice versa. A recursive signal processing algorithm with low pass filtering function is used, which entirely takes place at the lower sample rate. The impulse response of the low pass filtering function is a power series expansion

REFERENCES:
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patent: 5708433 (1998-01-01), Craven
patent: 6570514 (2003-05-01), Velazquez
patent: 6643675 (2003-11-01), Piirainen
D. Birru; “A Generalized Mulltirate Topology of Reduced-Sample-Rate Sigma Delta Modulators With Optimum Coefficients”, IEEE Signal Processing Letters, Aug. 1999, vol. 6, No. 8, pp. 196-198, XP002224976.
D. Birru; “Reduced-Sample-Rate Sigma-Delta Modulation Using Recursive Deconvolution” Intern, Journal of Circuit Theory & Applications, Chichester, GB, vol. 25, No. 5, Sep. 1997, pp. 419-437, XP001120299.
Roza: “Recursive Bitstream Conversion: the Reverse Mode,” IEE Transaction On Circuits And Systems-II: Analog And Digital Signal Processing, vol. 41, No. 5, May 1994, pp. 329-336.
Roza: “Recursive Bitstream Conversion,” IEE Transaction On Circuits And Systems-II: Analog And Digital Signal Processing, vol. 40, No. 2, Feb. 1993, pp. 65-72.

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