Pressure relief device for microphone protection in an electronic device and corresponding methods
US11046576B1 · kind B1 · utility
0Cited by
15References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jan 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device includes a microphone coupled to a first substrate, a second substrate defining an acoustic port, and a pressure relief device situated between the first substrate and the second substrate. The pressure relief device includes a bore defining an acoustic duct through which the microphone receives acoustic energy from the acoustic port. The pressure relief device also includes a venting section. The venting section breaches the acoustic duct when a pressure within the acoustic duct exceeds a predefined pressure threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.