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:
Apr. 07, 2020

Filed:

Feb. 19, 2018
Applicant:

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

Inventor:

James C. Camp, Oak Ridge, NC (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H03F 3/24 (2006.01); H03H 17/02 (2006.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H03H 17/0273 (2013.01); H03F 1/32 (2013.01); H03F 3/24 (2013.01); H03H 17/0286 (2013.01); H04L 27/2614 (2013.01);
Abstract

A crest factor reduction (CRF) circuit may include a scaler configured to receive the input signal and generate a scaled input signal. A clipping circuit may be configured to receive the input signal and generate a clipped input signal. A negator circuit may be configured to receive the clipped input signal and generate a negated clipped input signal. A first summer may be configured to sum the scaled input signal and the negated clipped input signal to generate a summed signal. A first digital filter may be configured to receive the summed signal and provide a first digital filter output. A second digital filter may be configured to receive the clipped input signal and provide a second digital filter output. A multiplexer may be configured to receive the first digital filter output and the second digital filter output and generate an output signal.


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