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:
Nov. 18, 2014

Filed:

Jun. 27, 2012
Applicants:

Ganesh Ananthaswamy, Bangalore, IN;

Sudheesh A. Somanathan, Bangalore, IN;

Inventors:

Ganesh Ananthaswamy, Bangalore, IN;

Sudheesh A. Somanathan, Bangalore, IN;

Assignee:

Analog Devices, Inc., Norwood, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 25/03343 (2013.01); H04L 25/03885 (2013.01);
Abstract

A pre-distortion circuit that may introduce a pre-distortion signal in a communication channel by determining a harmonic signal of the signal to be output. One or more image correction signals of the signal to be output may be determined. The one or more image correction signals may be complex conjugate signal variations of the signal to be output. The harmonic signal, the one or more image correction signals and the signal to be output may be combined into a combined output signal. The combined output signal may be transmitted to a digital-to-analog converter. The predistortion circuit may be implemented in a FPGA, an ASIC, a digital-to-analog converter, and/or a separate IC package.


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