Dynamic control of multiple feedforward microphones in active noise reduction devices
US12382220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Jan 9, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of operation and a hear-through mode of operation of the ANR device. The earpiece further includes a controller configured to: process a first subset of microphones from the plurality of microphones to generate input signals for the ANR mode of operation and process a second subset of microphones from the plurality of microphones to generate input signals for the hear-through mode of operation. The second subset of microphones excludes a first microphone from the plurality of microphones located closest to a noise pathway of the earpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.