Conference microphone unit
US4436966A · kind A · utility
47Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Mar 15, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/342
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone unit particularly suitable for conference applications is provided, wherein an acousto-electric transducer is disposed between two dish-like back-to-back sound collectors, each having a central aperture exposing one side of the transducer, which preferably has a single planar diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.