Patent · US Active

Tracking and correcting gain of open-loop driver in a multi-path processing system

US11329620B2 · kind B2 · utility

0Cited by

6References

14Claims

0Family size

Assignee

CIRRUS LOGIC, INC. · US

Inventors

Johann G. Gaboriau · Austin, US
David M. Olivenbaum · Austin, US
Xiaofan Fei · Austin, US
Amar Vellanki · Cedar Park, US
Venugopal Choukinishi · Austin, US
Gautham S. SIVASANKAR · Austin, US
Wai-Shun Shum · Austin, US

Key dates

Filing date	Jul 14, 2020
Grant date	May 10, 2022
Priority date	—
Expiry date	Oct 27, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2200/03
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.