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.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Apr. 06, 2023
Nxp Usa, Inc., Austin, TX (US);
Sai-Wang Tam, Sunnyvale, CA (US);
Tian Liu, Los Angeles, CA (US);
Alireza Razzaghi, Mountain View, CA (US);
Alden C Wong, Sunnyvale, CA (US);
Ovidiu Carnu, Scotts Valley, CA (US);
Wai Lau, San Jose, CA (US);
Sridhar Reddy Narravula, Cupertino, CA (US);
Yui Lin, Palo Alto, CA (US);
Sudhir Srinivasa, Los Gatos, CA (US);
NXP USA, Inc., Austin, TX (US);
Abstract
A cancellation circuit includes a limiter connected to an output of a first transmitter power amplifier that converts in input sinewave to a digital square wave and a digital to time converter (DTC) connected to the limiter. A RF digital to RF converter is connected to the DTC that converts the digital square wave input into an analog RF output. A cancellation amplifier with an input receives an output from the RF digital to RF converter and has an output connected to an output of a second transmitter power amplifier. The cancellation amplifier produces a cancellation signal to cancel an interference signal at the output of the second transmitter power amplifier from the output of the first transmitter power amplifier. A power detector is connected to the output of the second power amplifier that produces a power value detected at the output of the second power amplifier.