Microphone diaphragm
US10349178B2 · kind B2 · utility
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6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention relate to microphones diaphragms. In one embodiment, a sensor comprising a diaphragm comprised of a composition having a plurality of individual graphene sheets. An emitter formed in a manner to transmit lights towards a surface of the diaphragm. A collector that captures at least a portion of light that is reflected by the diaphragm. A converter is in communication with the detector that converts a signal that is generated by the sensor to a digital signal for processing. The graphene-based composition includes graphene sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.