Microphone
US6625293B1 · kind B1 · utility
105Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Mar 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/107
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone which has a highly reliable microphone arm, can be reduced in weight and size, and is constituted by a pipe microphone for narration having good acoustic characteristics includes a voice receiving opening formed in the distal end portion of a hollow microphone arm extending from a microphone main body and having flexibility, a microphone unit arranged in the microphone main body, a ventilation hole formed in the microphone arm on the microphone main body side, wherein the ventilation hole is clogged with an unwoven fabric serving as a ventilation resistance member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.