System and method for audio source localization using multiple audio sensors
US10750132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automated security surveillance system determines a location of a possible disturbance and adjusts its cameras to record video footage of the disturbance. In one embodiment, a disturbance can be determined by recording audio of the nearby area. A system, coupled to a camera, may include an arrangement of four audio sensors recording audio of the nearby area to produce independent outputs. The system further may include a processing module configured to determine an angle and distance of an audio source relative to a location of the arrangement of the four audio sensors. The system can then adjust the camera by rotation along an azimuth or elevation angle and adjusting the zoom level to record video of the audio source. Through use of the system, a surveillance system can present an image of a source of possible disturbance to an operator more rapidly and precisely than through manual techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.