Noise masking communications apparatus
US7349547B1 · kind B1 · utility
20Cited by
8References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A communications headset with a movable microphone boom that extends to different distances from the mouth, where the movement of the boom operates electrical, mechanical or acoustic means to adjust the transmit and/or receive sensitivity of the headset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.