Device for determining sound source direction
US12411199B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 8, 2021 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Apr 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for determining sound source direction includes an array sensor including a plurality of microphones that measures a sound wave, and a processor for calculating a sound pressure in each direction based on sound pressure information of the sound wave obtained by the array sensor and for determining a direction in which the sound pressure is maximum as a direction of sound wave arrival. The plurality of microphones is provided at vertices of two or more concyclic polygons that are on a same plane and that have a same center and are arranged so as to be non-rotationally symmetric as a whole array sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.