Frequency based beamforming
US9521486B1 · kind B1 · utility
13Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic device captures sound using two or more microphones and filters the sound into a plurality of sub-bands. For each of the plurality of sub-bands, the device identifies sound captured by the microphones from at least two directions and attenuates the sound captured by the microphones, within each of the sub-bands, in substantially one of the directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.