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:
Mar. 17, 2026
Filed:
Feb. 23, 2023
Elliptic Laboratories Asa, Oslo, NO;
Espen Klovning, Strømmen, NO;
Tom Øystein Kavli, Oslo, NO;
Elliptic Laboratories ASA, Oslo, NO;
Abstract
The present invention relates to a device and method for detecting a cover over at least part of an electronic device. The device comprising at least one audio transducer adapted to transmit and receive an acoustic signal. The method includes the steps of: ⋅—defining at least one characteristic of an interrogation signal; ⋅—transmitting, using at least one of said transducers, the interrogation signal within a predetermined frequency range, having the at least one characteristic; ⋅—receiving, in at least one audio transducer, a signal, ⋅—analyzing the characteristics of the received signal and the characteristics of the transmitted signal and detecting a selected number of differences between them, ⋅—comparing the differences between the transmitted signal and the received signal with a predetermined set of differences related to an object covering at least one of the transducers in the device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile