Microphone device and case for microphone device
US10536762B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2019 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone device includes a case that has a circuit board therein; a microphone capsule that is apart from the case and has a plurality of sound collecting parts arranged on a surface of a sphere at predetermined intervals; pillars that support the microphone capsule and couple the first end face of the case and the microphone capsule; pillars that support the microphone capsule, and a protrusion part that is placed between the pillars and protrudes from the first end face toward the microphone capsule. The protrusion part is formed such that its diameter becomes smaller from a root coupled to the first end face toward a tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.