Foveated beamforming for augmented reality devices and wearables
US11967335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2021 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Oct 28, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An augmented reality (AR) device, such as AR glasses, may include a microphone array. The sensitivity of the microphone array can be directed to a target by beamforming, which includes combining the audio of each microphone of the array in a particular way based on a location of the target. The present disclosure describes systems and methods to determine the location of the target based on a gaze of a user and beamform the audio accordingly. This eye-tracked beamforming (i.e., foveated beamforming) can be used by AR applications to enhance sounds from a gaze direction and to suppress sounds from other directions. Additionally, the gaze information can be used to help visualize the results of an AR application, such as speech-to-text.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.