Asymmetric microphone position for beamforming on wearables form factor
US11410669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2021 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Feb 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wearable audio device is provided. The wearable audio device may include a first array of microphones linearly arranged on the wearable audio device at a positive angle relative to a horizontal axis of the wearable audio device. The microphones of the first array may be configured to capture far-field audio. The wearable audio device may include a second array of microphones linearly arranged on the wearable audio device at a negative angle relative to the horizontal axis. The microphones of the second array may be configured to capture near-field audio. The wearable audio device may include circuitry arranged to (1) generate a user voice audio signal based on the captured near-field audio, (2) generate a desired audio signal based on the captured far-field audio, and (3) generate a differentiated signal based on the desired audio signal and the user voice audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.