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. 30, 2025

Filed:

Apr. 03, 2023
Applicant:

Maxlinear, Inc., Carlsbad, CA (US);

Inventors:

Zohaib Mahmood, Westwood, MA (US);

Subramanian Anantharaman Chandrasekarapuram, Bangalore, IN;

Srivathsa Acharya, Bangalore, IN;

Gopala Krishna Murthy Vemula, Bangalore, IN;

Devika Sunilkumar, Bangalore, IN;

Assignee:

MaxLinear, Inc., Carlsbad, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/525 (2015.01); H04B 1/04 (2006.01); H04B 1/10 (2006.01); H04B 1/12 (2006.01); H04B 15/00 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04B 1/123 (2013.01); H04B 1/0475 (2013.01); H04B 1/525 (2013.01); H04L 25/03 (2013.01);
Abstract

A system includes a receiver (RX) configured to receive an RX output signal in an RX band, where the RX output signal has a first passive intermodulation (PIM) source in the RX band and a second PIM source in the RX band; and a processing device configured to: receive the RX output signal from the receiver on an RX path, receive a crest factor reduction (CFR) output signal from a CFR on a transmit (TX) path, identify the first PIM source and the second PIM source based on the RX output signal and the CFR output signal, calibrate the CFR output signal based on the first and second PIM sources in the RX output signal to generate a non-linear actuation (NA) input signal, and generate an intermodulation distortion signal by using an NA function on the NA input signal.


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