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. 06, 2023
Filed:
Jun. 22, 2021
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01R 31/28 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01R 31/2825 (2013.01); H04R 29/001 (2013.01);
Abstract
Circuitry for detecting a capacitive load coupled between a first node and a second node, the circuitry comprising: drive circuitry for applying a first voltage to a first node over a first time period; processing circuitry configured to: measure a second voltage at the first node; and determine that the load is a capacitive load based on the second voltage.