The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 28, 2014

Filed:

Jul. 18, 2012
Applicants:

Ragnar H. Jonsson, Laguna Niguel, CA (US);

Vilhjalmur S. Thorvaldsson, Irvine, CA (US);

Trausti Thormundsson, Irvine, CA (US);

Inventors:

Ragnar H. Jonsson, Laguna Niguel, CA (US);

Vilhjalmur S. Thorvaldsson, Irvine, CA (US);

Trausti Thormundsson, Irvine, CA (US);

Assignee:

Conexant Systems, Inc., Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 17/00 (2006.01); H03H 17/06 (2006.01); H03H 17/02 (2006.01); H03M 5/02 (2006.01);
U.S. Cl.
CPC ...
H03M 5/02 (2013.01); H03H 17/0642 (2013.01); H03H 17/0275 (2013.01); H03H 17/0685 (2013.01);
Abstract

Poly-phase filters are used to offer an efficient and low complexity solution to rate conversion. However, they suffer from inflexibility and are not easily reconfigured. A novel design for rate converters employ poly-phase filters but utilize interpolation between filter coefficients to add flexibility to rate conversion. This interpolation can be implemented as an interpolation of the poly-phase filter results. Additional approximations can be made to further reduce the amount of calculations required to implement a flexible rate converter.


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