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:
Dec. 29, 2020
Filed:
Dec. 05, 2019
GN Audio A/s, Ballerup, DK;
Jacob Reimert, Ballerup, DK;
GN AUDIO A/S, Ballerup, DK;
Abstract
An earphone () comprising an earphone housing (), a speaker unit (), the speaker unit () comprising a diaphragm (). A front chamber () is defined in the earphone between a front side () of the diaphragm () and the user (), when the earphone () is worn. A rear chamber () is defined between the earphone housing () and a rear side () of the diaphragm (). The earphone () comprises an active noise cancelling feedback microphone (), which is arranged in the rear chamber () and which comprises a microphone opening (). The diaphragm () comprises a cylindrical part (), to which a voice coil () is attached, and an outer ring part () extending from the cylindrical part () in a direction away from a centre axis () of the diaphragm (). The feedback microphone () is arranged farther from the centre axis () than the voice coil ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile