Method and apparatus for detecting sound event using directional microphone
US10271137B1 · kind B1 · utility
1Cited by
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16Claims
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Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/406
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of detecting a sound event includes receiving sound signals using one or more directional microphones, extracting a time interval of each of the sound signals, extracting time information and an azimuth of a sound event included in the sound signals during the extracted time interval, mixing the sound signals received from the directional microphones using the extracted time interval, and determining a direction of the sound event generated at a specific time from a mixed sound signal obtained through the mixing using the extracted time information and azimuth of the sound event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.