Wireless communication systems for masks or helmets
US7221966B2 · kind B2 · utility
19Cited by
15References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Nov 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/385
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various types of wireless communication systems for masks or helmets can be mounted externally or internally on a mask. Different types of microphones can be employed, for example, a bone-conducting microphone or a directional microphone. Ear speakers mounted at various locations on the mask or helmet can be employed. Wireless communication is with a transceiver mounted in or on a lapel unit, a walkie-talkie, or at a remote location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.