Dual microphone assembly for mask
US7457427B2 · kind B2 · utility
7Cited by
24References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Aug 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone assembly including two microphones is usable in connection with a mask of the type worn by someone wearing a protective mask or respirator. The two microphones may share a common pass-through. The output signals of the two microphones may share one or more conductors in the pass-through. One microphone may support the other on the mask, or the microphones may be physically separate, or the microphones may be formed as one unit. The invention also relates to a mask having at least two microphones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.