Transducer apparatus embodying non-audio sensors for noise-immunity
US11647330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2019 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a transducer apparatus to provide audio sensing with high noise immunity in an acoustically-noisy environment. The invention replaces the prior-art acoustic microphone with a non-acoustic sensor to sense free-field and/or surface vibrations or movement that resemble or arising from the voice of the user. The non-acoustic sensor includes an accelerometer, shock sensor, gyroscope, vibration microphone, or vibration sensor. There are several adaptions and embodiments of the invention including improving the polar directivity of the non-acoustic sensors and application of a multiplicity of non-acoustic sensors and acoustic microphones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.