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:
Sep. 15, 2020

Filed:

Apr. 29, 2019
Applicant:

Zinwave, Ltd., Dallas, TX (US);

Inventors:

John Prentice, Haslingfield, GB;

Alessandro Bertoneri, Cambridge, GB;

Chris Potter, Fulbourn, GB;

Assignee:

Zinwave, LTD., Dallas, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/2575 (2013.01); H03F 1/32 (2006.01); H04B 10/58 (2013.01); H04B 1/04 (2006.01); H03F 3/24 (2006.01); H04B 10/40 (2013.01);
U.S. Cl.
CPC ...
H04B 10/25753 (2013.01); H03F 1/32 (2013.01); H03F 3/245 (2013.01); H04B 1/0475 (2013.01); H04B 10/40 (2013.01); H04B 10/58 (2013.01); H03F 2200/411 (2013.01); H03F 2200/451 (2013.01); H03F 2201/3215 (2013.01); H04B 2001/0416 (2013.01); H04B 2210/006 (2013.01);
Abstract

A system has a plurality of non-linear circuit stages and an intervening linear circuit stage. An input signal is provided to a first non-linear circuit stage, and from the first non-linear circuit stage, to the linear circuit stage. The first non-linear circuit stage applies a second-order distortion to the input signal and provides the resulting signal to the linear circuit stage. The resulting signal that is output from the linear circuit stage is inverted with respect to the input signal and suitably linearly processed (attenuated or amplified). This signal is then provided to a second non-linear circuit that applies a second-order distortion and outputs a signal that has an overall reduction in second-order distortion.


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