Microphone module
US10595133B2 · kind B2 · utility
2Cited by
0References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone module includes a first MEMS microphone and a second MEMS microphone, wherein the first MEMS microphone includes a first modulator, and wherein the second MEMS microphone includes a second modulator. For the purpose of noise reduction, a defined offset can be applied to an input of the first modulator or of the second modulator. Alternatively, for the purpose of noise reduction, the first modulator and the second modulator can be operated with different modulation frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.