Signal-enhancing beamforming in an augmented reality environment
US9973848B2 · kind B2 · utility
34Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2011 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An augmented reality environment allows interaction between virtual and real objects. Beamforming techniques are applied to signals acquired by an array of microphones to allow for simultaneous spatial tracking and signal acquisition from multiple users. Localization information such as from other sensors in the environment may be used to select a particular set of beamformer coefficients and resulting beampattern focused on a signal source. Alternately, a series of beampatterns may be used iteratively to localize the signal source in a computationally efficient fashion. The beamformer coefficients may be pre-computed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.