Directional voice sensing using coherent optical detection
US11854568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Sep 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device includes a microphone, an array of coherent optical emitters, an array of balanced coherent optical vibration sensors, and a processor. Each balanced coherent optical vibration sensor in the array of balanced coherent optical vibration sensors is paired with a coherent optical emitter in the array of coherent optical emitters. The processor is configured to analyze a set of waveforms acquired by the array of balanced coherent optical vibration sensors; identify, using the analysis of the set of waveforms, a set of one or more voices in a field of view; and adjust an output of the microphone to accentuate a particular voice in the set of one or more voices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.