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:
Jun. 29, 2021
Filed:
Sep. 04, 2018
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Gautham S. Sivasankar, Austin, TX (US);
Tejasvi Das, Austin, TX (US);
Emmanuel Marchais, Dripping Springs, TX (US);
Amar Vellanki, Cedar Park, TX (US);
Leyi Yin, Austin, TX (US);
John L. Melanson, Austin, TX (US);
Venugopal Choukinishi, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A method of determining a phase misalignment between a first signal generated from a first signal path and a second signal generated from a second signal path may include obtaining multiple samples of the first signal proximate to when the first signal crosses zero wherein the first signal can be approximated as linear; obtaining multiple samples of the second signal proximate to when the second signal crosses zero wherein the first signal can be approximated as linear; based on the multiple samples of the first signal, approximating a first time at which the first signal crosses zero; based on the multiple samples of the second signal, approximating a second time at which the second signal crosses zero; and determining the phase misalignment between the first signal and the second signal based on a difference between the first time and the second time.