Patent · US Active

Acoustic filters for microphone noise mitigation and transducer venting

US11528551B2 · kind B2 · utility

1Cited by

31References

19Claims

0Family size

Assignee

SONOS, INC. · US

Inventors

Jerad Lewis · Cambridge, US
Philippe Vossel · Wuppertal, DE
Michael Perkmann · Wien, AT
Martin Seidl · Rechter Graben, AT

Key dates

Filing date	May 24, 2021
Grant date	Dec 13, 2022
Priority date	—
Expiry date	May 24, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/11
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Playback devices such as headphone devices can include an earpiece configured to be positioned adjacent a user's ear. The earpiece can include a transducer having a diaphragm configured to face toward the user's ear when the earpiece is positioned adjacent the user's ear, as well as an outlet vent in fluid communication with the transducer and a microphone. A support member within the earpiece includes a first opening aligned with the microphone and a second opening aligned with the outlet vent. An acoustic mesh extends over the first opening and the second opening, wherein the mesh has a substantially uniform acoustic impedance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.