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:
Jan. 20, 2026
Filed:
Apr. 26, 2023
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventor:
John P. Lesso, Edinburgh, GB;
Assignee:
Cirrus Logic Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/367 (2019.01); G01R 31/385 (2019.01); G01R 31/392 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/367 (2019.01); G01R 31/385 (2019.01); G01R 31/392 (2019.01);
Abstract
Circuitry for determining an impedance of an electrochemical cell comprising at least one first electrode and a second electrode, the circuitry comprising: drive circuitry configured to apply a stimulus to the electrochemical cell, the stimulus having a stimulation frequency and a stimulation amplitude; and measurement circuitry configured to: measure an output of the electrochemical cell to generate an output signal; separate the output signal into a linear component and a non-linear component; and determine the impedance of the cell based on the linear component of the response.