Patent · US Active

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

US11431310B2 · kind B2 · utility

0Cited by

7References

44Claims

0Family size

Assignee

CIRRUS LOGIC, INC. · US

Inventors

Amar Vellanki · Cedar Park, US
Tejasvi Das · Austin, US
John L. Melanson · Austin, US

Key dates

Filing date	Mar 24, 2020
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Oct 9, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03G3/3005
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A multi-path subsystem may include a first processing path, a second processing path, a mixed signal return path, and a calibration engine configured to: estimate and cancel a direct current (DC) offset of the mixed signal return path, estimate and cancel a DC offset between the first processing path and the second processing path, estimate and cancel a phase difference between the first processing path and a sum of the second processing path and the mixed signal return path, estimate and cancel a return path gain of the mixed signal return path, and track and correct for a gain difference between the first processing path and the second processing path.

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