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. 23, 2021
Filed:
Mar. 17, 2020
GN Audio A/s, Ballerup, DK;
Michael Hoby, Ballerup, DK;
Christoffer Bovbjerg, Ballerup, DK;
GN AUDIO A/S, Ballerup, DK;
Abstract
The earphone () is adapted to be arranged in an operating position at a first ear () of a user () and, in the operating position, provide a first acoustic output signal (S) to the first ear (). The earphone has a first input unit () adapted to receive a first audio input signal (S); a first noise cancellation signal path () with a first microphone () and a first noise cancellation filter (), wherein the first microphone () is arranged to receive ambient sound (S) from ambient space () with the earphone in the operating position and is adapted to provide a corresponding first reference signal (S), and wherein the first noise cancellation filter () is adapted to apply a first transfer function (H) to the first reference signal (S) to provide a first noise cancellation signal (S).