Flush mounted directional microphone
US6122389A · kind A · utility
19Cited by
12References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/38
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A unidirectional microphone element can be embedded within an object and be made flush to the object's surface yet retain its directional discrimination characteristic. Acoustic waveguides transmit acoustic input signals from acoustic ports to the front and rear input ports of the microphone element while also providing intelligibility-enhancing frequency response shaping. The housing wherein the microphone element is mounted acoustically isolates the front and rear input ports of the microphone element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.