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. 14, 2022
Filed:
Nov. 19, 2020
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
John Bruce Bowlerwell, Edinburgh, GB;
John Anthony Breslin, Edinburgh, GB;
Cirrus Logic, Inc., Austin, TX (US);
Abstract
The present disclosure relates to circuitry for detecting at least partial removal of an audio accessory plug from a corresponding socket. The circuitry comprises a monitoring unit comprising a first terminal configured to be electrically connected to a first socket contact of the socket that is in electrical contact with a first plug contact of the plug when the plug is fully received in the socket. The monitoring unit is configured to monitor a first impedance of a first signal path coupled to the first terminal, and the circuitry is configured to output a signal indicative of detection of at least partial removal of the plug from the socket in response to detection by the monitoring unit of a first predetermined sequence of impedance states of the first signal path.