Acoustic beacon for broadcasting the orientation of a device
US9961472B2 · kind B2 · utility
6Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for determining the orientation of a loudspeaker relative to a listening device is described. The method simultaneously drives each transducer to emit beam patterns corresponding to distinct orthogonal audio signals. The listening device senses sounds produced by the orthogonal audio signals and analyzes the sensed audio signal to determine the spatial orientation of the loudspeaker relative to the listening device. Other embodiments are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.