Wearable directional microphone array system and audio processing method
US11019414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Mar 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/23
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.