Adaptive sample rate converter

Details Adaptive sample rate converter Adaptive sample rate converter

2011-08-16

2011-08-16

Ha, Dac (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C341S061000

Reexamination Certificate

active

08000423

ABSTRACT:
A sample rate converter includes a digital filter and control logic coupled to the digital filter. The digital filter is configured to receive an input data stream and to up convert the input data stream to produce an output data stream having a fixed data rate. The control logic configured to dynamically select a set of coefficients for taps in the digital filter during each clock cycle corresponding to the fixed data rate. The set of coefficients selected for each clock cycle is in accordance with a phase of the input data stream.

REFERENCES:
patent: 5892468 (1999-04-01), Wilson et al.
patent: 5907295 (1999-05-01), Lin
patent: 5982832 (1999-11-01), Ko
patent: 6028728 (2000-02-01), Reed
patent: 6178186 (2001-01-01), Baker et al.
patent: 6518894 (2003-02-01), Friedhof
patent: 6559781 (2003-05-01), Friedhof et al.
patent: 6584145 (2003-06-01), Camagna et al.
patent: 6744472 (2004-06-01), MacInnis et al.
patent: 6778621 (2004-08-01), Wilson et al.
patent: 6853385 (2005-02-01), MacInnis et al.
patent: 6956917 (2005-10-01), Lenosky
patent: 7061409 (2006-06-01), Jantti
patent: 7079157 (2006-07-01), Deering
patent: 7336754 (2008-02-01), Aoyama
patent: 2002/0126748 (2002-09-01), Rafie et al.
patent: 2003/0025619 (2003-02-01), Zhong
patent: 2003/0076950 (2003-04-01), Usman et al.
patent: 2003/0100833 (2003-05-01), He et al.
patent: 2004/0151267 (2004-08-01), Raby et al.
patent: 2004/0212734 (2004-10-01), MacInnis et al.
patent: 2005/0265430 (2005-12-01), Ozluturk et al.
patent: 2005/0280742 (2005-12-01), Jaffe
patent: 2006/0158568 (2006-07-01), Kaylani et al.
patent: 2006/0184596 (2006-08-01), Volleberg et al.
patent: 2008/0037151 (2008-02-01), Fujimoto et al.
Sample-Rate Converstion: Algorithms and VLSI Implementation, Fritz Markus Rothacher, Swiss federal institute of technology, 1995.
Cuypers, G., et al., “Chebyshev Interpolation for DMT Modems,” 2004 IEEE Int'l Conf. on Communications, vol. 5, Jun. 20-24, 2004, pp. 2736-2740.
Rothacher, F.M., “Sample-Rate Conversion: Algorithms and VLSI Implementation,” doctorial dissertation submitted to Swiss Federal Institute of Technology, Zurich, Switzerland, 1995.
Gentile, K., “The Care and Feeding of Digital, Pulse-Shaping Filters,” RF Mixed Signal, Apr. 2002, pp. 50, 52, 54, 56, 58, and 61.
Kohiyama, K., et al., “A Single-Chip Digital PLL System for TV Image Processing,” IEEE International Solid-State Circuits Conference, 1991, ISSCC91/Session 15/Video Signal Processors/Paper FP 15.1, pp. 248-250.
Nuhertz Technology, “Raised Cosine Filter,” downloaded Sep. 30, 2005, pp. 1-6. http://www.filter-solutions.com/raised.html.
International Search Report for PCT/US2006/030726 mailed Jan. 16, 2007.
Final Office Action for U.S. Appl. No. 11/247,891 dated Feb. 18, 2010.

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