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:
May. 10, 2022
Filed:
Jul. 14, 2020
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Johann G. Gaboriau, Austin, TX (US);
David M. Olivenbaum, Austin, TX (US);
Xiaofan Fei, Austin, TX (US);
Amar Vellanki, Cedar Park, TX (US);
Venugopal Choukinishi, Austin, TX (US);
Gautham Sivasankar, Austin, TX (US);
Wai-Shun Shum, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A method for calibrating gain in a multi-path subsystem having a first processing path, a second processing path, and a mixed signal return path, may include low-pass filtering an input signal and a mixed signal return path signal generated from the input signal at subsonic frequencies to generate a filtered input signal and a filtered mixed signal return path signal and tracking and correcting for a gain difference between the first processing path and the second processing path based on the filtered input signal and the filtered mixed signal return path signal.